This commit was manufactured by cvs2svn to create tag 'LIBPNG_1_0_3'.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/tags/LIBPNG_1_0_3@14990 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/png/.cvsignore

@@ -0,0 +1,2 @@
+pngM*Data
+pngM5.mcp

src/png/ANNOUNCE

@@ -0,0 +1,53 @@
+
+Libpng 1.0.3 - January 14, 1999
+
+This is a public release of libpng, intended for use in production codes.
+
+Changes since the previous public release (1.0.2):
+
+libpng-1.0.3:
+
+  Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
+  Fixed a bug in png_do_filler() that made it fail to write filler bytes in
+    the left-most pixel of each row (Kevin Bracey).
+  Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
+    in pngtest.c (Duncan Simpson).
+  Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
+    even when no tIME chunk was present in the source file.
+  Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
+  Fixed a problem in png_read_push_finish_row(), which would not skip some
+    passes that it should skip, for images that are less than 3 pixels high.
+  Interchanged the order of calls to png_do_swap() and png_do_shift()
+    in pngwtran.c (John Cromer).
+  Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h .
+  Changed "bad adaptive filter type" from error to warning in pngrutil.c .
+  Fixed a documentation error about default filtering with 8-bit indexed-color.
+  Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO
+    (L. Peter Deutsch).
+  Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
+  Added png_get_copyright() and png_get_header_version() functions.
+  Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c
+  Added information about debugging in libpng.txt and libpng.3 .
+  Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco.
+  Removed lines after Dynamic Dependencies" in makefile.aco .
+  Revised makefile.dec to make a shared library (Jeremie Petit).
+  Removed trailing blanks from all files. 
+  Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
+  Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
+  Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
+  Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
+    which is obsolete.
+  Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
+  Added a statement of Y2K compliance in png.h, libpng.1, and Y2KINFO.
+
+Send comments/corrections/commendations to
+png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu
+
+Glenn R-P
+
+Send comments/corrections/commendations to
+png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu
+
+Glenn Randers-Pehrson
+libpng maintainer
+PNG Development Group

src/png/CHANGES

@@ -0,0 +1,389 @@
+CHANGES - changes for libpng
+
+version 0.2
+  added reader into png.h
+  fixed small problems in stub file
+version 0.3
+  added pull reader
+  split up pngwrite.c to several files
+  added pnglib.txt
+  added example.c
+  cleaned up writer, adding a few new tranformations
+  fixed some bugs in writer
+  interfaced with zlib 0.5
+  added K&R support
+  added check for 64 KB blocks for 16 bit machines
+version 0.4
+  cleaned up code and commented code
+  simplified time handling into png_time
+  created png_color_16 and png_color_8 to handle color needs
+  cleaned up color type defines
+  fixed various bugs
+  made various names more consistant
+  interfaced with zlib 0.71
+  cleaned up zTXt reader and writer (using zlib's Reset functions)
+  split transformations into pngrtran.c and pngwtran.c
+version 0.5
+  interfaced with zlib 0.8
+  fixed many reading and writing bugs
+  saved using 3 spaces instead of tabs
+version 0.6
+  added png_large_malloc() and png_large_free()
+  added png_size_t
+  cleaned up some compiler warnings
+  added png_start_read_image()
+version 0.7
+  cleaned up lots of bugs
+  finished dithering and other stuff
+  added test program
+  changed name from pnglib to libpng
+version 0.71 [June, 1995]
+  changed pngtest.png for zlib 0.93
+  fixed error in libpng.txt and example.c
+version 0.8
+  cleaned up some bugs
+  added png_set_filler()
+  split up pngstub.c into pngmem.c, pngio.c, and pngerror.c
+  added #define's to remove unwanted code
+  moved png_info_init() to png.c
+  added old_size into png_realloc()
+  added functions to manually set filtering and compression info
+  changed compression parameters based on image type
+  optimized filter selection code
+  added version info
+  changed external functions passing floats to doubles (k&r problems?)
+  put all the configurable stuff in pngconf.h
+  enabled png_set_shift to work with paletted images on read
+  added png_read_update_info() - updates info structure with
+     transformations
+version 0.81 [August, 1995]
+  incorporated Tim Wegner's medium model code (thanks, Tim)
+version 0.82 [September, 1995]
+  [unspecified changes]
+version 0.85 [December, 1995]
+  added more medium model code (almost everything's a far)
+  added i/o, error, and memory callback functions
+  fixed some bugs (16 bit, 4 bit interlaced, etc.)
+  added first run progressive reader (barely tested)
+version 0.86 [January, 1996]
+  fixed bugs
+  improved documentation
+version 0.87 [January, 1996]
+  fixed medium model bugs
+  fixed other bugs introduced in 0.85 and 0.86
+  added some minor documentation
+version 0.88 [January, 1996]
+  fixed progressive bugs
+  replaced tabs with spaces
+  cleaned up documentation
+  added callbacks for read/write and warning/error functions
+version 0.89 [July, 1996]
+  added new initialization API to make libpng work better with shared libs
+     we now have png_create_read_struct(), png_create_write_struct(),
+     png_create_info_struct(), png_destroy_read_struct(), and
+     png_destroy_write_struct() instead of the separate calls to
+     malloc and png_read_init(), png_info_init(), and png_write_init()
+  changed warning/error callback functions to fix bug - this means you
+     should use the new initialization API if you were using the old
+     png_set_message_fn() calls, and that the old API no longer exists
+     so that people are aware that they need to change their code
+  changed filter selection API to allow selection of multiple filters
+     since it didn't work in previous versions of libpng anyways
+  optimized filter selection code
+  fixed png_set_background() to allow using an arbitrary RGB color for
+     paletted images
+  fixed gamma and background correction for paletted images, so
+     png_correct_palette is not needed unless you are correcting an
+     external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED
+     in pngconf.h) - if nobody uses this, it may disappear in the future.
+  fixed bug with Borland 64K memory allocation (Alexander Lehmann)
+  fixed bug in interlace handling (Smarasderagd, I think)
+  added more error checking for writing and image to reduce invalid files
+  separated read and write functions so that they won't both be linked
+     into a binary when only reading or writing functionality is used
+  new pngtest image also has interlacing and zTXt
+  updated documentation to reflect new API
+version 0.90 [January, 1997]
+  made CRC errors/warnings on critical and ancillary chunks configurable
+  libpng will use the zlib CRC routines by (compile-time) default
+  changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner)
+  added external C++ wrapper statements to png.h (Gilles Dauphin)
+  allow PNG file to be read when some or all of file signature has already
+     been read from the beginning of the stream.  ****This affects the size
+     of info_struct and invalidates all programs that use a shared libpng****
+  fixed png_filler() declarations
+  fixed? background color conversions
+  fixed order of error function pointers to match documentation
+  current chunk name is now available in png_struct to reduce the number
+     of nearly identical error messages (will simplify multi-lingual
+     support when available)
+  try to get ready for unknown-chunk callback functions:
+     - previously read critical chunks are flagged, so the chunk handling
+       routines can determine if the chunk is in the right place
+     - all chunk handling routines have the same prototypes, so we will
+       be able to handle all chunks via a callback mechanism
+  try to fix Linux "setjmp" buffer size problems
+version 0.95 [March, 1997]
+  fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never
+  fixed bug in PNG file signature compares when start != 0
+  changed parameter type of png_set_filler(...filler...) from png_byte
+     to png_uint_32
+  added test for MACOS to ensure that both math.h and fp.h are not #included
+  added macros for libpng to be compiled as a Windows DLL (Andreas Kupries)
+  added "packswap" transformation, which changes the endianness of
+     packed-pixel bytes (Kevin Bracey)
+  added "strip_alpha" transformation, which removes the alpha channel of
+     input images without using it (not neccesarily a good idea)
+  added "swap_alpha" transformation, which puts the alpha channel in front
+     of the color bytes instead of after
+  removed all implicit variable tests which assume NULL == 0 (I think)
+  changed several variables to "png_size_t" to show 16/32-bit limitations
+  added new pCAL chunk read/write support
+  added experimental filter selection weighting (Greg Roelofs)
+  removed old png_set_rgbx() and png_set_xrgb() functions that have been
+     obsolete for about 2 years now (use png_set_filler() instead)
+  added macros to read 16- and 32-bit ints directly from buffer, to be
+     used only on those systems that support it (namely PowerPC and 680x0)
+     With some testing, this may become the default for MACOS/PPC systems.
+  only calculate CRC on data if we are going to use it
+  added macros for zTXt compression type PNG_zTXt_COMPRESSION_???
+  added macros for simple libpng debugging output selectable at compile time
+  removed PNG_READ_END_MODE in progressive reader (Smarasderagd)
+  more description of info_struct in libpng.txt and png.h
+  more instructions in example.c
+  more chunk types tested in pngtest.c
+  renamed pngrcb.c to pngset.c, and all png_read_<chunk> functions to be
+     png_set_<chunk>.  We now have corresponding png_get_<chunk>
+     functions in pngget.c to get infomation in info_ptr.  This isolates
+     the application from the internal organization of png_info_struct
+     (good for shared library implementations).
+version 0.96 [May, 1997]
+  fixed serious bug with < 8bpp images introduced in 0.95
+  fixed 256-color transparency bug (Greg Roelofs)
+  fixed up documentation (Greg Roelofs, Laszlo Nyul)
+  fixed "error" in pngconf.h for Linux setjmp() behaviour
+  fixed DOS medium model support (Tim Wegner)
+  fixed png_check_keyword() for case with error in static string text
+  added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul)
+  added typecasts to quiet compiler errors
+  added more debugging info
+version 0.97 [January, 1998]
+  removed PNG_USE_OWN_CRC capability
+  relocated png_set_crc_action from pngrutil.c to pngrtran.c
+  fixed typecasts of "new_key", etc. (Andreas Dilger)
+  added RFC 1152 [sic] date support
+  fixed bug in gamma handling of 4-bit grayscale
+  added 2-bit grayscale gamma handling (Glenn R-P)
+  added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P)
+  minor corrections in libpng.txt
+  added simple sRGB support (Glenn R-P)
+  easier conditional compiling, e.g. define PNG_READ/WRITE_NOT_FULLY_SUPPORTED;
+     all configurable options can be selected from command-line instead
+     of having to edit pngconf.h (Glenn R-P)
+  fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P)
+  added more conditions for png_do_background, to avoid changing
+     black pixels to background when a background is supplied and
+     no pixels are transparent
+  repaired PNG_NO_STDIO behaviour
+  tested NODIV support and made it default behaviour (Greg Roelofs)
+  added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler)
+  regularized version numbering scheme and bumped shared-library major
+     version number to 2 to avoid problems with libpng 0.89 apps (Greg Roelofs)
+version 0.98 [January, 1998]
+  cleaned up some typos in libpng.txt and in code documentation
+  fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler)
+  cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c
+  changed recommendation about file_gamma for PC images to .51 from .45,
+     in example.c and libpng.txt, added comments to distinguish between
+     screen_gamma, viewing_gamma, and display_gamma.
+  changed all references to RFC1152 to read RFC1123 and changed the
+     PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED
+  added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent)
+  changed srgb_intent from png_byte to int to avoid compiler bugs
+version 0.99 [January 30, 1998]
+  free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler)
+  fixed a longstanding "packswap" bug in pngtrans.c
+  fixed some inconsistencies in pngconf.h that prevented compiling with
+     PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined
+  fixed some typos and made other minor rearrangement of libpng.txt (Andreas)
+  changed recommendation about file_gamma for PC images to .50 from .51 in
+     example.c and libpng.txt, and changed file_gamma for sRGB images to .45
+  added a number of functions to access information from the png structure
+     png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit)
+  added TARGET_MACOS similar to zlib-1.0.8
+  define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined
+  added type casting to all png_malloc() function calls
+version 0.99a [January 31, 1998]
+  Added type casts and parentheses to all returns that return a value.(Tim W.)
+version 0.99b [February 4, 1998]
+  Added type cast png_uint_32 on malloc function calls where needed.
+  Changed type of num_hist from png_uint_32 to int (same as num_palette).
+  Added checks for rowbytes overflow, in case png_size_t is less than 32 bits.
+  Renamed makefile.elf to makefile.lnx.
+version 0.99c [February 7, 1998]
+  More type casting.  Removed erroneous overflow test in pngmem.c.
+  Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes.
+  Added UNIX manual pages libpng.3 (incorporating libpng.txt) and  png.5.
+version 0.99d [February 11, 1998]
+  Renamed "far_to_near()" "png_far_to_near()"
+  Revised libpng.3
+  Version 99c "buffered" operations didn't work as intended.  Replaced them
+    with png_memcpy_check() and png_memset_check().
+  Added many "if (png_ptr == NULL) return" to quell compiler warnings about
+    unused png_ptr, mostly in pngget.c and pngset.c.
+  Check for overlength tRNS chunk present when indexed-color PLTE is read.
+  Cleaned up spelling errors in libpng.3/libpng.txt
+  Corrected a problem with png_get_tRNS() which returned undefined trans array
+version 0.99e [February 28, 1998]
+  Corrected png_get_tRNS() again.
+  Add parentheses for easier reading of pngget.c, fixed "||" should be "&&".
+  Touched up example.c to make more of it compileable, although the entire
+    file still can't be compiled (Willem van Schaik)
+  Fixed a bug in png_do_shift() (Bryan Tsai)
+  Added a space in png.h prototype for png_write_chunk_start()
+  Replaced pngtest.png with one created with zlib 1.1.1
+  Changed pngtest to report PASS even when file size is different (Jean-loup G.)
+  Corrected some logic errors in png_do_invert_alpha() (Chris Patterson)
+version 0.99f [March 5, 1998]
+  Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey)
+  Moved makefiles into a "scripts" directory, and added INSTALL instruction file
+  Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok)
+  Added pointers to "note on libpng versions" in makefile.lnx and README
+  Added row callback feature when reading and writing nonprogressive rows
+     and added a test of this feature in pngtest.c
+  Added user transform callbacks, with test of the feature in pngtest.c
+version 0.99g [March 6, 1998, morning]
+  Minor changes to pngtest.c to suppress compiler warnings.
+  Removed "beta" language from documentation.
+version 0.99h [March 6, 1998, evening]
+  Minor changes to previous minor changes to pngtest.c
+  Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED
+  and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro
+version 1.00 [March 7, 1998]
+  Changed several typedefs in pngrutil.c
+  Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik)
+  replaced "while(1)" with "for(;;)"
+  added PNGARG() to prototypes in pngtest.c and removed some prototypes
+  updated some of the makefiles (Tom Lane)
+  changed some typedefs (s_start, etc.) in pngrutil.c
+  fixed dimensions of "short_months" array in pngwrite.c
+  Replaced ansi2knr.c with the one from jpeg-v6
+version 1.0.0 [March 8, 1998]
+  Changed name from 1.00 to 1.0.0 (Adam Costello)
+  Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert)
+version 1.0.0a [March 9, 1998]
+  Fixed three bugs in pngrtran.c to make gamma+background handling consistent
+  (Greg Roelofs)
+  Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz
+  for major, minor, and bugfix releases.  This is 10001. (Adam Costello,
+  Tom Lane)
+  Make months range from 1-12 in png_convert_to_rfc1123
+version 1.0.0b [March 13, 1998]
+  Quieted compiler complaints about two empty "for" loops in pngrutil.c
+  Minor changes to makefile.s2x
+  Removed #ifdef/#endif around a png_free() in pngread.c
+version 1.0.1 [March 14, 1998]
+  Changed makefile.s2x to reduce security risk of using a relative pathname
+  Fixed some typos in the documentation (Greg).
+  Fixed a problem with value of "channels" returned by png_read_update_info()
+version 1.0.1a [April 21, 1998]
+  Optimized Paeth calculations by replacing abs() function calls with intrinsics
+  plus other loop optimizations. Improves avg decoding speed by about 20%.
+  Commented out i386istic "align" compiler flags in makefile.lnx.
+  Reduced the default warning level in some makefiles, to make them consistent.
+  Removed references to IJG and JPEG in the ansi2knr.c copyright statement.
+  Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation.
+  Added grayscale and 16-bit capability to png_do_read_filler().
+  Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes
+    too large when writing an image with bit_depth < 8 (Bob Dellaca).
+  Corrected some bugs in the experimental weighted filtering heuristics.
+  Moved a misplaced pngrutil code block that truncates tRNS if it has more
+    than num_palette entries -- test was done before num_palette was defined.
+  Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins).
+  Changed compiler flags in makefile.wat for better optimization (Pawel Mrochen).
+version 1.0.1b [May 2, 1998]
+  Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg).
+  Relocated the png_composite macros from pngrtran.c to png.h (Greg).
+  Added makefile.sco (contributed by Mike Hopkirk).
+  Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a.
+  Fixed a bug in pngrtran.c that would set channels=5 under some circumstances.
+  More work on the Paeth-filtering, achieving imperceptible speedup (A Kleinert).
+  More work on loop optimization which may help when compiled with C++ compilers.
+  Added warnings when people try to use transforms they've defined out.
+  Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran.
+  Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg)
+version 1.0.1c [May 11, 1998]
+  Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for
+    filler bytes should have been 0xff instead of 0xf.
+  Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images.
+  Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED
+    out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h
+  Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED,
+    for consistency, in pngconf.h
+  Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier
+    to remove unwanted capabilities via the compile line
+  Made some corrections to grammar (which, it's) in documentation (Greg).
+  Corrected example.c, use of row_pointers in png_write_image().
+version 1.0.1d [May 24, 1998]
+  Corrected several statements that used side effects illegally in pngrutil.c
+    and pngtrans.c, that were introduced in version 1.0.1b
+  Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert)
+  More corrections to example.c, use of row_pointers in png_write_image()
+    and png_read_rows().
+  Added pngdll.mak and pngdef.pas to scripts directory, contributed by
+    Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5
+  Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.)
+  Changed several loops from count-down to count-up, for consistency.
+version 1.0.1e [June 6, 1998]
+  Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and
+    added warnings when people try to set png_read_fn and png_write_fn in
+    the same structure.
+  Added a test such that png_do_gamma will be done when num_trans==0
+    for truecolor images that have defined a background.  This corrects an
+    error that was introduced in libpng-0.90 that can cause gamma processing
+    to be skipped.
+  Added tests in png.h to include "trans" and "trans_values" in structures
+    when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined.
+  Add png_free(png_ptr->time_buffer) in png_destroy_read_struct()
+  Moved png_convert_to_rfc_1123() from pngwrite.c to png.c
+  Added capability for user-provided malloc_fn() and free_fn() functions,
+    and revised pngtest.c to demonstrate their use, replacing the
+    PNGTEST_DEBUG_MEM feature.
+  Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
+version 1.0.2 [June 14, 1998]
+  Fixed two bugs in makefile.bor .
+version 1.0.2a [December 30, 1998]
+  Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
+  Fixed a bug in png_do_filler() that made it fail to write filler bytes in
+    the left-most pixel of each row (Kevin Bracey).
+  Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
+    in pngtest.c (Duncan Simpson).
+  Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
+    even when no tIME chunk was present in the source file.
+  Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
+  Fixed a problem in png_read_push_finish_row(), which would not skip some
+    passes that it should skip, for images that are less than 3 pixels high.
+  Interchanged the order of calls to png_do_swap() and png_do_shift()
+    in pngwtran.c (John Cromer).
+  Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h .
+  Changed "bad adaptive filter type" from error to warning in pngrutil.c .
+  Fixed a documentation error about default filtering with 8-bit indexed-color.
+  Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO
+    (L. Peter Deutsch).
+  Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
+  Added png_get_copyright() and png_get_header_version() functions.
+  Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c
+  Added information about debugging in libpng.txt and libpng.3 .
+  Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco.
+  Removed lines after Dynamic Dependencies" in makefile.aco .
+  Revised makefile.dec to make a shared library (Jeremie Petit).
+  Removed trailing blanks from all files. 
+version 1.0.2a [January 6, 1999]
+  Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
+  Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
+  Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
+  Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
+    which is obsolete.
+version 1.0.3 [January 14, 1999]
+  Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
+  Added a statement of Y2K compliance in png.h, libpng.1, and Y2KINFO.

src/png/INSTALL

@@ -0,0 +1,91 @@
+
+Installing libpng version 1.0.3 - January 14, 1999
+
+Before installing libpng, you must first install zlib.  zlib
+can usually be found wherever you got libpng.  zlib can be
+placed in another directory, at the same level as libpng.
+Note that your system might already have a preinstalled
+zlib, but you will still need to have access to the
+zlib.h and zconf.h include files that correspond to the
+version of zlib that's installed.
+
+You can rename the directories that you downloaded (they
+might be called "libpng-1.0.3" or "lpng103" and "zlib-1.1.3"
+or "zlib113") so that you have directories called "zlib" and "libpng".
+
+Your directory structure should look like this:
+
+   ..       (the parent directory)
+      libpng  (this directory)
+          INSTALL (this file)
+          README
+          *.h
+          *.c
+          scripts
+             makefile.*
+          pngtest.png
+          etc.
+      zlib
+          README
+          *.h
+          *.c
+          contrib
+          etc.
+
+First enter the zlib directory and follow the instructions
+in zlib/README.  Then come back here and choose the
+appropriate makefile.sys in the scripts directory.
+The files that are presently available in the scripts directory
+include
+
+      descrip.mms   =>  VMS makefile for MMS or MMK
+      makefile.std  =>  Generic UNIX makefile
+      makefile.knr  =>  Archaic UNIX Makefile that converts files with ansi2knr
+      makefile.dec  =>  DEC Alpha UNIX makefile
+      makefile.hux  =>  HPUX (10.20 and 11.00) makefile
+      makefile.sgi  =>  Silicon Graphics IRIX makefile
+      makefile.sun  =>  Sun makefile
+      makefile.s2x  =>  Solaris 2.X makefile (gcc, creates libpng.so.2.1.0)
+      makefile.lnx  =>  Linux/ELF makefile (gcc, creates libpng.so.2.1.0)
+      makefile.mip  =>  MIPS makefile
+      makefile.aco  =>  Acorn makefile
+      makefile.ama  =>  Amiga makefile
+      smakefile.ppc =>  AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
+                        (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
+      makefile.atr  =>  Atari makefile
+      makefile.bor  =>  Borland makefile
+      build.bat     =>  MS-DOS batch file for Borland compiler
+      makefile.dj2  =>  DJGPP 2 makefile
+      makefile.msc  =>  Microsoft C makefile
+      makefile.w32  =>  makefile for Microsoft Visual C++ 4.0 and later
+      makefile.tc3  =>  Turbo C 3.0 makefile
+      makefile.os2  =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
+      pngos2.def    =>  OS/2 module definition file used by makefile.os2
+      makefile.wat  =>  Watcom 10a+ Makefile, 32-bit flat memory model
+      makevms.com   =>  VMS build script
+      pngdll.mak    =>  To make a png32bd.dll with Borland C++ 4.5
+      pngdef.pas    =>  Defines for a png32bd.dll with Borland C++ 4.5
+
+Copy the file (or files) that you need from the
+scripts directory into this directory, for example
+
+   MSDOS example: copy scripts\makefile.msd makefile
+   UNIX example:    cp scripts/makefile.std makefile
+
+Read the makefile to see if you need to change any source or
+target directories to match your preferences.
+
+Then read pngconf.h to see if you want to make any configuration
+changes.
+
+Then just run "make test" which will create the libpng library in
+this directory and run a quick test that reads the "pngtest.png"
+file and writes a "pngout.png" file that should be identical to it.
+
+Most of the makefiles will allow you to run "make install" to
+put the library in its final resting place (if you want to
+do that, run "make install" in the zlib directory first if necessary).
+
+Further information can be found in the README and libpng.txt
+files, in the individual makefiles, and in png.h, and the manual
+pages libpng.3 and png.5.

src/png/MAKEFILE.VA

@@ -0,0 +1,138 @@
+#
+# File:      makefile.vc
+# Author:    David Webster
+# Created:   1999
+# Updated:
+# Copyright: c) 1993, AIAI, University of Edinburgh
+#
+# "%W% %G%"
+#
+# Makefile : Builds os2png.lib library for OS/2 3.0/4.0
+
+# Suffixes
+OBJSUFF=obj
+SRCSUFF=cpp
+
+OS2FLAGS=/c /W2 /DOS232 /D__VISAGECPP__ /Ss /Q /N100
+OS2LINKFLAGS=/BASE:0x00010000 /PMTYPE:PM /NOE /NOD /ALIGN:16
+OS2LIBFLAGS=/NOL /NOE
+OS2LIBS=CPPOM30.lib CPPOOC3.LIB OS2386.LIB
+
+!if "$(WXMAKINGDLL)" != "0"
+EXTRADLLFLAGS=/DWXMAKINGDLL=1 /Ge- /D__OS2DLL__
+EXTRALNKFLAGS=/DLL
+!endif
+
+# Change WXDIR or WXWIN to wherever wxWindows is found
+WXDIR = $(WXWIN)
+
+OS2PNGDIR=$(WXDIR)\src\png
+OS2PNGINC=$(WINPNGDIR)
+OS2PNGLIB=$(WXDIR)\lib\os2png.lib
+!if "$(WXMAKINGDLL)" != "1"
+OS2PNGLIB=$(WXDIR)\lib\os2png.lib
+!else
+OS2PNGLIB=$(WXDIR)\lib\os2png.dll
+!endif
+INC=-I$(WXDIR)\src\zlib -I$(OS2PNGINC)
+
+!ifndef FINAL
+FINAL=0
+!endif
+
+!if "$(NOPCH)" == "1"
+PCH=
+PRECOMP=
+MAKEPRECOMP=
+!else
+PCH=$(WXLIBNAME).pch
+PRECOMP=/Si$(PCH)
+MAKEPRECOMP=/Fi$(PCH)
+!endif
+
+!if "$(FINAL)" == "0"
+!if "$(WXMAKINGDLL)" == "1"
+D=DebugOS2DLL
+!else
+D=DebugOS2
+!endif
+OPT =
+DEBUG_FLAGS= /Ti /D__WXDEBUG__ #/Fb
+LINK_DEBUG_FLAGS=/DEBUG
+CRTFLAG=/Gm /Gd
+!else
+# /O1 - smallest code
+# /O2 - fastest code
+!if "$(WXMAKINGDLL)" == "1"
+D=RelseOS2DLL
+!else
+D=RelseOS2
+!endif
+OPT = /O+ /Oc /G5
+DEBUG_FLAGS=
+LINK_DEBUG_FLAGS=/RELEASE
+CRTFLAG=/Gm /Gd
+!endif
+
+!if [md $(OS2PNGDIR)\$D]
+!endif
+
+CPPFLAGS=$(OS2FLAGS) $(EXTRADLLFLAGS) $(DEBUG_FLAGS) $(PRECOMP) $(INC) $(OPT) $(CRTFLAG)
+LINKFKAGS=$(OS2LINKFLAGS) $(EXTRALNKFLAGS)
+LIBS=..\\..\\lib\os2zlibd.lib
+
+{..\png}.c{..\png\$D}.obj:
+    @echo $<
+    icc @<<
+$(CPPFLAGS) /Fo$@ /Tp $<
+<<
+
+OBJECTS = \
+  ..\png\$D\png.obj \
+  ..\png\$D\pngread.obj \
+  ..\png\$D\pngrtran.obj \
+  ..\png\$D\pngrutil.obj \
+  ..\png\$D\pngpread.obj \
+  ..\png\$D\pngtrans.obj \
+  ..\png\$D\pngwrite.obj \
+  ..\png\$D\pngwtran.obj \
+  ..\png\$D\pngwutil.obj \
+  ..\png\$D\pngerror.obj \
+  ..\png\$D\pngmem.obj \
+  ..\png\$D\pngwio.obj \
+  ..\png\$D\pngrio.obj \
+  ..\png\$D\pngget.obj \
+  ..\png\$D\pngset.obj
+
+all:  $(OS2PNGLIB)
+
+!if "$(WXMAKINGDLL)" != "1"
+
+$(WXDIR)\lib\os2png.lib: $(OBJECTS)
+ touch $(WXDIR)\lib\os2png.lib
+ del $(WXDIR)\lib\os2png.lib
+ ilib $(OS2LIBFLAGS) $@ @<<
+    $**;
+<<
+
+!else
+
+# Update the dynamic link library
+$(WXDIR)\lib\os2png.dll: $(OBJECTS)
+    icc @<<
+    /B" $(LINKFLAGS)" /Fe$@
+    $(LIBS)
+    $(OBJECTS)
+    $(WXDIR)\src\os2\os2png.def
+<<
+    implib $(WXDIR)\lib\os2pngd.lib $(WXDIR)\src\os2\os2png.def
+
+!endif
+
+clean:
+        del      $(OS2PNGLIB)
+        erase /N $(OS2PNGDIR)\$D
+        rd       $(OS2PNGDIR)\$D
+
+cleanall:     clean
+

src/png/README

@@ -0,0 +1,198 @@
+README for libpng 1.0.3 - January 14, 1999 (shared library 2.1)
+See the note about version numbers near the top of png.h
+
+See INSTALL for instructions on how to install libpng.
+
+This is the first official release of libpng.  Don't let the fact that
+it's the first release fool you.  The libpng library has been in
+extensive use and testing for about two and a half years.  However, it's
+finally gotten to the stage where there haven't been significant
+changes to the API in some time, and people have a bad feeling about
+libraries with versions < 1.0.
+
+****
+Note that some of the changes to the png_info structure render this
+version of the library binary incompatible with libpng-0.89 or
+earlier versions if you are using a shared library.  The type of the
+"filler" parameter for png_set_filler() has changed from png_byte to
+png_uint_32, which will affect shared-library applications that use
+this function.
+
+To avoid problems with changes to the internals of png_info_struct,
+new APIs have been made available in 0.95 to avoid direct application
+access to info_ptr.  These functions are the png_set_<chunk> and
+png_get_<chunk> functions.  These functions should be used when
+accessing/storing the info_struct data, rather than manipulating it
+directly, to avoid such problems in the future.
+
+It is important to note that the APIs do not make current programs
+that access the info struct directly incompatible with the new
+library.  However, it is strongly suggested that new programs use
+the new APIs (as shown in example.c), and older programs be converted
+to the new format, to facilitate upgrades in the future.
+****
+
+Additions since 0.90 include the ability to compile libpng as a
+Windows DLL, and new APIs for accessing data in the info struct.
+Experimental functions include the ability to set weighting and cost
+factors for row filter selection, direct reads of integers from buffers
+on big-endian processors that support misaligned data access, faster
+methods of doing alpha composition, and more accurate 16->8 bit color
+conversion.
+
+The additions since 0.89 include the ability to read from a PNG stream
+which has had some (or all) of the signature bytes read by the calling
+application.  This also allows the reading of embedded PNG streams that
+do not have the PNG file signature.  As well, it is now possible to set
+the library action on the detection of chunk CRC errors.  It is possible
+to set different actions based on whether the CRC error occurred in a
+critical or an ancillary chunk.
+
+The changes made to the library, and bugs fixed are based on discussions
+on the PNG implementation mailing list <png-implement@dworking.wustl.edu>
+and not on material submitted to Guy.
+
+For a detailed description on using libpng, read libpng.txt.  For
+examples of libpng in a program, see example.c and pngtest.c.  For usage
+information and restrictions (what little they are) on libpng, see
+png.h.  For a description on using zlib (the compression library used by
+libpng) and zlib's restrictions, see zlib.h
+
+I have included a general makefile, as well as several machine and
+compiler specific ones, but you may have to modify one for your own needs.
+
+You should use zlib 1.0.4 or later to run this, but it MAY work with
+versions as old as zlib 0.95.  Even so, there are bugs in older zlib
+versions which can cause the output of invalid compression streams for
+some images.  You will definitely need zlib 1.0.4 or later if you are
+taking advantage of the MS-DOS "far" structure allocation for the small
+and medium memory models.  You should also note that zlib is a
+compression library that is useful for more things than just PNG files.
+You can use zlib as a drop-in replacement for fread() and fwrite() if
+you are so inclined.
+
+zlib should be available at the same place that libpng is.
+If not, it should be at ftp.uu.net in /graphics/png
+Eventually, it will be at ftp.uu.net in /pub/archiving/zip/zlib
+
+You may also want a copy of the PNG specification.  It is available
+as an RFC and a W3C Recommendation.  Failing
+these resources you can try ftp.uu.net in the /graphics/png directory.
+
+This code is currently being archived at ftp.uu.net in the
+/graphics/png directory, and on CompuServe, Lib 20 (PNG SUPPORT)
+at GO GRAPHSUP.  If you can't find it in any of those places,
+e-mail me, and I'll help you find it.
+
+If you have any code changes, requests, problems, etc., please e-mail
+them to me.  Also, I'd appreciate any make files or project files,
+and any modifications you needed to make to get libpng to compile,
+along with a #define variable to tell what compiler/system you are on.
+If you needed to add transformations to libpng, or wish libpng would
+provide the image in a different way, drop me a note (and code, if
+possible), so I can consider supporting the transformation.
+Finally, if you get any warning messages when compiling libpng
+(note: not zlib), and they are easy to fix, I'd appreciate the
+fix.  Please mention "libpng" somewhere in the subject line.  Thanks.
+
+This release was created and will be supported by myself (of course
+based in a large way on Guy's and Andreas' earlier work), and the PNG group.
+
+randeg@alumni.rpi.edu
+png-implement@dworkin.wustl.edu
+
+You can't reach Guy, the original libpng author, at the addresses
+given in previous versions of this document.  He and Andreas will read mail
+addressed to the png-implement list, however.
+
+Please do not send general questions about PNG.  Send them to
+the address in the specification (png-group@w3.org).  At the same
+time, please do not send libpng questions to that address, send them to me
+or to png-implement@dworkin.wustl.edu.  I'll
+get them in the end anyway.  If you have a question about something
+in the PNG specification that is related to using libpng, send it
+to me.  Send me any questions that start with "I was using libpng,
+and ...".  If in doubt, send questions to me.  I'll bounce them
+to others, if necessary.
+
+Please do not send suggestions on how to change PNG.  We have
+been discussing PNG for three years now, and it is official and
+finished.  If you have suggestions for libpng, however, I'll
+gladly listen.  Even if your suggestion is not used for version
+1.0, it may be used later.
+
+Files in this distribution:
+
+      CHANGES       =>  Description of changes between libpng versions
+      README        =>  This file
+      TODO          =>  Things not implemented in the current library
+      ansi2knr.1    =>  Manual page for ansi2knr
+      ansi2knr.c    =>  Converts files to K&R style function declarations
+      build.bat     =>  MS-DOS batch file for Borland compiler
+      descrip.mms   =>  VMS project file
+      example.c     =>  Example code for using libpng functions
+      libpng.3      =>  manual page for libpng
+      libpng.txt    =>  Description of libpng and its functions
+      libpngpf.3    =>  manual page for libpng's private functions
+      png.5         =>  manual page for the PNG format
+      png.c         =>  Basic interface functions common to library
+      png.h         =>  Library function and interface declarations
+      pngconf.h     =>  System specific library configuration
+      pngerror.c    =>  Error/warning message I/O functions
+      pngget.c      =>  Functions for retrieving info from struct
+      pngmem.c      =>  Memory handling functions
+      pngpread.c    =>  Progressive reading functions
+      pngread.c     =>  Read data/helper high-level functions
+      pngrio.c      =>  Lowest-level data read I/O functions
+      pngrtran.c    =>  Read data transformation functions
+      pngrutil.c    =>  Read data utility functions
+      pngset.c      =>  Functions for storing data into the info_struct
+      pngtest.c     =>  Library test program
+      pngtest.png   =>  Library test sample image
+      pngtrans.c    =>  Common data transformation functions
+      pngwio.c      =>  Lowest-level write I/O functions
+      pngwrite.c    =>  High-level write functions
+      pngwtran.c    =>  Write data transformations
+      pngwutil.c    =>  Write utility functions
+      scripts       =>  Directory containing scripts for building libpng:
+        descrip.mms   =>  VMS makefile for MMS or MMK
+        makefile.std  =>  Generic UNIX makefile
+        makefile.knr  =>  Archaic UNIX Makefile that converts files with ansi2knr
+        makefile.dec  =>  DEC Alpha UNIX makefile
+        makefile.hux  =>  HPUX (10.20 and 11.00) makefile
+        makefile.sgi  =>  Silicon Graphics IRIX makefile
+        makefile.sun  =>  Sun makefile
+        makefile.s2x  =>  Solaris 2.X makefile (gcc, creates libpng.so.2.1.0)
+        makefile.lnx  =>  Linux/ELF makefile (gcc, creates libpng.so.2.1.0)
+        makefile.mip  =>  MIPS makefile
+        makefile.aco  =>  Acorn makefile
+        makefile.ama  =>  Amiga makefile
+        smakefile.ppc =>  AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
+                          (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
+        makefile.atr  =>  Atari makefile
+        makefile.bor  =>  Borland makefile
+        build.bat     =>  MS-DOS batch file for Borland compiler
+        makefile.dj2  =>  DJGPP 2 makefile
+        makefile.msc  =>  Microsoft C makefile
+        makefile.w32  =>  makefile for Microsoft Visual C++ 4.0 and later
+        makefile.tc3  =>  Turbo C 3.0 makefile
+        makefile.os2  =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
+        makefile.wat  =>  Watcom 10a+ Makefile, 32-bit flat memory model
+        pngos2.def    =>  OS/2 module definition file used by makefile.os2
+        makevms.com   =>  VMS build script
+        pngdll.mak    =>  To make a png32bd.dll with Borland C++ 4.5
+        pngdef.pas    =>  Defines for a png32bd.dll with Borland C++ 4.5
+
+Good luck, and happy coding.
+
+-Glenn Randers-Pehrson
+ Internet: randeg@alumni.rpi.edu
+ Web: http://www.rpi.edu/~randeg/index.html
+
+-Andreas Eric Dilger
+ Internet: adilger@enel.ucalgary.ca
+ Web: http://www-mddsp.enel.ucalgary.ca/People/adilger/
+
+-Guy Eric Schalnat
+ (formerly of Group 42, Inc)
+ Internet: gschal@infinet.com

src/png/TODO

@@ -0,0 +1,24 @@
+TODO - list of things to do for libpng:
+
+Final bug fixes.
+Fix problem with C++ and EXTERN "C".
+Better C++ wrapper/full C++ implementation?
+Keep up with public chunks.
+sPLT chunk handling.
+cHRM transformation.
+Support for application-defined chunk handlers.
+Improve setjmp/longjmp usage or remove it in favor of returning error codes.
+High-level API for reading images.
+Add "grayscale->palette" transformation and "palette->grayscale" detection.
+Color to gray transformation.
+Improved dithering.
+Multi-lingual error and warning message support.
+Complete sRGB transformation (presently it simply uses gamma=0.45455).
+Man pages for function calls.
+Better documentation.
+Better filter selection
+   (counting huffman bits/precompression?  filter inertia?  filter costs?).
+Optional palette (sPLT) creation.
+Histogram creation.
+Text conversion between different code pages (Latin-1 -> Mac and DOS).
+Improve API by hiding the info_ptr.

src/png/Y2KINFO

@@ -0,0 +1,52 @@
+   Y2K compliance in libpng:
+   =========================
+      
+      January 13, 1999
+      
+      Since the PNG Development group is an ad-hoc body, we can't make
+      an official declaration.
+      
+      This is your unofficial assurance that libpng from version 0.81 and
+      upward are Y2K compliant.  It is my belief that earlier versions were
+      also Y2K compliant.
+      
+      Libpng only has three year fields.  One is a 2-byte unsigned integer
+      that will hold years up to 65535.  The other two hold the date in text
+      format, and will hold years up to 9999.
+      
+      The integer is
+          "png_uint_16 year" in png_time_struct.
+      
+      The strings are
+          "png_charp time_buffer" in png_struct and
+          "near_time_buffer", which is a local character string in png.c.
+      
+      There are seven time-related functions:
+
+          png_convert_to_rfc_1123() in png.c 
+            (formerly png_convert_to_rfc_1152() in error)
+          png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c
+          png_convert_from_time_t() in pngwrite.c
+          png_get_tIME() in pngget.c
+          png_handle_tIME() in pngrutil.c, called in pngread.c
+          png_set_tIME() in pngset.c
+          png_write_tIME() in pngwutil.c, called in pngwrite.c
+      
+      All appear to handle dates properly in a Y2K environment.  The 
+      png_convert_from_time_t() function calls gmtime() to convert from system
+      clock time, which returns (year - 1900), which we properly convert to
+      the full 4-digit year.  There is a possibility that applications using
+      libpng are not passing 4-digit years into the png_convert_to_rfc_1123()
+      function, or incorrectly passing only a 2-digit year instead of
+      "year - 1900" into the png_convert_from_struct_tm() function, but this
+      is not under our control.  The libpng documentation has always stated
+      that it works with 4-digit years, and the APIs have been documented as
+      such.
+      
+      The tIME chunk itself is also Y2K compliant.  It uses a 2-byte unsigned
+      integer to hold the year, and can hold years as large as 65535.
+      
+      
+         Glenn Randers-Pehrson
+         libpng maintainer
+         PNG Development Group

src/png/ansi2knr.1

@@ -0,0 +1,36 @@
+.TH ANSI2KNR 1 "19 Jan 1996"
+.SH NAME
+ansi2knr \- convert ANSI C to Kernighan & Ritchie C
+.SH SYNOPSIS
+.I ansi2knr
+[--varargs] input_file [output_file]
+.SH DESCRIPTION
+If no output_file is supplied, output goes to stdout.
+.br
+There are no error messages.
+.sp
+.I ansi2knr
+recognizes function definitions by seeing a non-keyword identifier at the left
+margin, followed by a left parenthesis, with a right parenthesis as the last
+character on the line, and with a left brace as the first token on the
+following line (ignoring possible intervening comments).  It will recognize a
+multi-line header provided that no intervening line ends with a left or right
+brace or a semicolon.  These algorithms ignore whitespace and comments, except
+that the function name must be the first thing on the line.
+.sp
+The following constructs will confuse it:
+.br
+     - Any other construct that starts at the left margin and follows the
+above syntax (such as a macro or function call).
+.br
+     - Some macros that tinker with the syntax of the function header.
+.sp
+The --varargs switch is obsolete, and is recognized only for
+backwards compatibility.  The present version of
+.I ansi2knr
+will always attempt to convert a ... argument to va_alist and va_dcl.
+.SH AUTHOR
+L. Peter Deutsch <ghost@aladdin.com> wrote the original ansi2knr and
+continues to maintain the current version; most of the code in the current
+version is his work.  ansi2knr also includes contributions by Francois
+Pinard <pinard@iro.umontreal.ca> and Jim Avera <jima@netcom.com>.

src/png/ansi2knr.c

@@ -0,0 +1,695 @@
+/* ansi2knr.c */
+
+/* Convert ANSI C function definitions to K&R ("traditional C") syntax
+Copyright (C) 1989 Aladdin Enterprises.  All rights reserved.
+Copyright (C) 1988 Richard M. Stallman
+
+ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY.  No author or distributor accepts responsibility to anyone for the
+consequences of using it or for whether it serves any particular purpose or
+works at all, unless he says so in writing.  Refer to the GNU General Public
+License (the "GPL") for full details.
+
+Everyone is granted permission to copy, modify and redistribute ansi2knr,
+but only under the conditions described in the GPL.  A copy of this license
+is supposed to have been given to you along with ansi2knr so you can know
+your rights and responsibilities.  It should be in a file named COPYLEFT.
+[In the LIBPNG distribution, the GPL appears below, not in a separate file.]
+Among other things, the copyright notice and this notice must be preserved
+on all copies.
+
+We explicitly state here what we believe is already implied by the GPL: if
+the ansi2knr program is distributed as a separate source file and a
+separate executable file which are aggregated on a storage medium together
+with another program, this in itself does not bring the other program under
+the GPL, nor does the mere fact that such a program or the procedures for
+constructing it invoke the ansi2knr executable bring any other part of the
+program under the GPL.
+*/
+
+/*
+---------- Here is the GNU GPL file COPYLEFT, referred to above ----------
+----- These terms do NOT apply to the LIBPNG software itself; see README ------
+
+		    GHOSTSCRIPT GENERAL PUBLIC LICENSE
+		    (Clarified 11 Feb 1988)
+
+ Copyright (C) 1988 Richard M. Stallman
+ Everyone is permitted to copy and distribute verbatim copies of this
+ license, but changing it is not allowed.  You can also use this wording
+ to make the terms for other programs.
+
+  The license agreements of most software companies keep you at the
+mercy of those companies.  By contrast, our general public license is
+intended to give everyone the right to share Ghostscript.  To make sure
+that you get the rights we want you to have, we need to make
+restrictions that forbid anyone to deny you these rights or to ask you
+to surrender the rights.  Hence this license agreement.
+
+  Specifically, we want to make sure that you have the right to give
+away copies of Ghostscript, that you receive source code or else can get
+it if you want it, that you can change Ghostscript or use pieces of it
+in new free programs, and that you know you can do these things.
+
+  To make sure that everyone has such rights, we have to forbid you to
+deprive anyone else of these rights.  For example, if you distribute
+copies of Ghostscript, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must tell them their rights.
+
+  Also, for our own protection, we must make certain that everyone finds
+out that there is no warranty for Ghostscript.  If Ghostscript is
+modified by someone else and passed on, we want its recipients to know
+that what they have is not what we distributed, so that any problems
+introduced by others will not reflect on our reputation.
+
+  Therefore we (Richard M. Stallman and the Free Software Foundation,
+Inc.) make the following terms which say what you must do to be allowed
+to distribute or change Ghostscript.
+
+
+			COPYING POLICIES
+
+  1. You may copy and distribute verbatim copies of Ghostscript source
+code as you receive it, in any medium, provided that you conspicuously
+and appropriately publish on each copy a valid copyright and license
+notice "Copyright (C) 1989 Aladdin Enterprises.  All rights reserved.
+Distributed by Free Software Foundation, Inc." (or with whatever year is
+appropriate); keep intact the notices on all files that refer to this
+License Agreement and to the absence of any warranty; and give any other
+recipients of the Ghostscript program a copy of this License Agreement
+along with the program.  You may charge a distribution fee for the
+physical act of transferring a copy.
+
+  2. You may modify your copy or copies of Ghostscript or any portion of
+it, and copy and distribute such modifications under the terms of
+Paragraph 1 above, provided that you also do the following:
+
+    a) cause the modified files to carry prominent notices stating
+    that you changed the files and the date of any change; and
+
+    b) cause the whole of any work that you distribute or publish,
+    that in whole or in part contains or is a derivative of Ghostscript
+    or any part thereof, to be licensed at no charge to all third
+    parties on terms identical to those contained in this License
+    Agreement (except that you may choose to grant more extensive
+    warranty protection to some or all third parties, at your option).
+
+    c) You may charge a distribution fee for the physical act of
+    transferring a copy, and you may at your option offer warranty
+    protection in exchange for a fee.
+
+Mere aggregation of another unrelated program with this program (or its
+derivative) on a volume of a storage or distribution medium does not bring
+the other program under the scope of these terms.
+
+  3. You may copy and distribute Ghostscript (or a portion or derivative
+of it, under Paragraph 2) in object code or executable form under the
+terms of Paragraphs 1 and 2 above provided that you also do one of the
+following:
+
+    a) accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of
+    Paragraphs 1 and 2 above; or,
+
+    b) accompany it with a written offer, valid for at least three
+    years, to give any third party free (except for a nominal
+    shipping charge) a complete machine-readable copy of the
+    corresponding source code, to be distributed under the terms of
+    Paragraphs 1 and 2 above; or,
+
+    c) accompany it with the information you received as to where the
+    corresponding source code may be obtained.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form alone.)
+
+For an executable file, complete source code means all the source code for
+all modules it contains; but, as a special exception, it need not include
+source code for modules which are standard libraries that accompany the
+operating system on which the executable file runs.
+
+  4. You may not copy, sublicense, distribute or transfer Ghostscript
+except as expressly provided under this License Agreement.  Any attempt
+otherwise to copy, sublicense, distribute or transfer Ghostscript is
+void and your rights to use the program under this License agreement
+shall be automatically terminated.  However, parties who have received
+computer software programs from you with this License Agreement will not
+have their licenses terminated so long as such parties remain in full
+compliance.
+
+  5. If you wish to incorporate parts of Ghostscript into other free
+programs whose distribution conditions are different, write to the Free
+Software Foundation at 675 Mass Ave, Cambridge, MA 02139.  We have not
+yet worked out a simple rule that can be stated here, but we will often
+permit this.  We will be guided by the two goals of preserving the free
+status of all derivatives of our free software and of promoting the
+sharing and reuse of software.
+
+Your comments and suggestions about our licensing policies and our
+software are welcome!  Please contact the Free Software Foundation,
+Inc., 675 Mass Ave, Cambridge, MA 02139, or call (617) 876-3296.
+
+		       NO WARRANTY
+
+  BECAUSE GHOSTSCRIPT IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY
+NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW.  EXCEPT
+WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC, RICHARD
+M. STALLMAN, ALADDIN ENTERPRISES, L. PETER DEUTSCH, AND/OR OTHER PARTIES
+PROVIDE GHOSTSCRIPT "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
+EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE
+ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF GHOSTSCRIPT IS WITH
+YOU.  SHOULD GHOSTSCRIPT PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
+NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M.
+STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., L. PETER DEUTSCH, ALADDIN
+ENTERPRISES, AND/OR ANY OTHER PARTY WHO MAY MODIFY AND REDISTRIBUTE
+GHOSTSCRIPT AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING
+ANY LOST PROFITS, LOST MONIES, OR OTHER SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
+(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
+INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR A FAILURE OF THE
+PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) GHOSTSCRIPT, EVEN IF YOU
+HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM
+BY ANY OTHER PARTY.
+
+-------------------- End of file COPYLEFT ------------------------------
+*/
+
+/*
+ * Usage:
+	ansi2knr input_file [output_file]
+ * If no output_file is supplied, output goes to stdout.
+ * There are no error messages.
+ *
+ * ansi2knr recognizes function definitions by seeing a non-keyword
+ * identifier at the left margin, followed by a left parenthesis,
+ * with a right parenthesis as the last character on the line,
+ * and with a left brace as the first token on the following line
+ * (ignoring possible intervening comments).
+ * It will recognize a multi-line header provided that no intervening
+ * line ends with a left or right brace or a semicolon.
+ * These algorithms ignore whitespace and comments, except that
+ * the function name must be the first thing on the line.
+ * The following constructs will confuse it:
+ *	- Any other construct that starts at the left margin and
+ *	    follows the above syntax (such as a macro or function call).
+ *	- Some macros that tinker with the syntax of the function header.
+ */
+
+/*
+ * The original and principal author of ansi2knr is L. Peter Deutsch
+ * <ghost@aladdin.com>.  Other authors are noted in the change history
+ * that follows (in reverse chronological order):
+	lpd 96-01-21 added code to cope with not HAVE_CONFIG_H and with
+		compilers that don't understand void, as suggested by
+		Tom Lane
+	lpd 96-01-15 changed to require that the first non-comment token
+		on the line following a function header be a left brace,
+		to reduce sensitivity to macros, as suggested by Tom Lane
+		<tgl@sss.pgh.pa.us>
+	lpd 95-06-22 removed #ifndefs whose sole purpose was to define
+		undefined preprocessor symbols as 0; changed all #ifdefs
+		for configuration symbols to #ifs
+	lpd 95-04-05 changed copyright notice to make it clear that
+		including ansi2knr in a program does not bring the entire
+		program under the GPL
+	lpd 94-12-18 added conditionals for systems where ctype macros
+		don't handle 8-bit characters properly, suggested by
+		Francois Pinard <pinard@iro.umontreal.ca>;
+		removed --varargs switch (this is now the default)
+	lpd 94-10-10 removed CONFIG_BROKETS conditional
+	lpd 94-07-16 added some conditionals to help GNU `configure',
+		suggested by Francois Pinard <pinard@iro.umontreal.ca>;
+		properly erase prototype args in function parameters,
+		contributed by Jim Avera <jima@netcom.com>;
+		correct error in writeblanks (it shouldn't erase EOLs)
+	lpd 89-xx-xx original version
+ */
+
+/* Most of the conditionals here are to make ansi2knr work with */
+/* or without the GNU configure machinery. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <ctype.h>
+
+#if HAVE_CONFIG_H
+
+/*
+   For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h).
+   This will define HAVE_CONFIG_H and so, activate the following lines.
+ */
+
+# if STDC_HEADERS || HAVE_STRING_H
+#  include <string.h>
+# else
+#  include <strings.h>
+# endif
+
+#else /* not HAVE_CONFIG_H */
+
+/* Otherwise do it the hard way */
+
+# ifdef BSD
+#  include <strings.h>
+# else
+#  ifdef VMS
+    extern int strlen(), strncmp();
+#  else
+#   include <string.h>
+#  endif
+# endif
+
+#endif /* not HAVE_CONFIG_H */
+
+#if STDC_HEADERS
+# include <stdlib.h>
+#else
+/*
+   malloc and free should be declared in stdlib.h,
+   but if you've got a K&R compiler, they probably aren't.
+ */
+# ifdef MSDOS
+#  include <malloc.h>
+# else
+#  ifdef VMS
+     extern char *malloc();
+     extern void free();
+#  else
+     extern char *malloc();
+     extern int free();
+#  endif
+# endif
+
+#endif
+
+/*
+ * The ctype macros don't always handle 8-bit characters correctly.
+ * Compensate for this here.
+ */
+#ifdef isascii
+#  undef HAVE_ISASCII		/* just in case */
+#  define HAVE_ISASCII 1
+#else
+#endif
+#if STDC_HEADERS || !HAVE_ISASCII
+#  define is_ascii(c) 1
+#else
+#  define is_ascii(c) isascii(c)
+#endif
+
+#define is_space(c) (is_ascii(c) && isspace(c))
+#define is_alpha(c) (is_ascii(c) && isalpha(c))
+#define is_alnum(c) (is_ascii(c) && isalnum(c))
+
+/* Scanning macros */
+#define isidchar(ch) (is_alnum(ch) || (ch) == '_')
+#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_')
+
+/* Forward references */
+char *skipspace();
+int writeblanks();
+int test1();
+int convert1();
+
+/* The main program */
+int
+main(argc, argv)
+    int argc;
+    char *argv[];
+{	FILE *in, *out;
+#define bufsize 5000			/* arbitrary size */
+	char *buf;
+	char *line;
+	char *more;
+	/*
+	 * In previous versions, ansi2knr recognized a --varargs switch.
+	 * If this switch was supplied, ansi2knr would attempt to convert
+	 * a ... argument to va_alist and va_dcl; if this switch was not
+	 * supplied, ansi2knr would simply drop any such arguments.
+	 * Now, ansi2knr always does this conversion, and we only
+	 * check for this switch for backward compatibility.
+	 */
+	int convert_varargs = 1;
+
+	if ( argc > 1 && argv[1][0] == '-' )
+	  {	if ( !strcmp(argv[1], "--varargs") )
+		  {	convert_varargs = 1;
+			argc--;
+			argv++;
+		  }
+		else
+		  {	fprintf(stderr, "Unrecognized switch: %s\n", argv[1]);
+			exit(1);
+		  }
+	  }
+	switch ( argc )
+	   {
+	default:
+		printf("Usage: ansi2knr input_file [output_file]\n");
+		exit(0);
+	case 2:
+		out = stdout;
+		break;
+	case 3:
+		out = fopen(argv[2], "w");
+		if ( out == NULL )
+		   {	fprintf(stderr, "Cannot open output file %s\n", argv[2]);
+			exit(1);
+		   }
+	   }
+	in = fopen(argv[1], "r");
+	if ( in == NULL )
+	   {	fprintf(stderr, "Cannot open input file %s\n", argv[1]);
+		exit(1);
+	   }
+	fprintf(out, "#line 1 \"%s\"\n", argv[1]);
+	buf = malloc(bufsize);
+	line = buf;
+	while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL )
+	   {
+test:		line += strlen(line);
+		switch ( test1(buf) )
+		   {
+		case 2:			/* a function header */
+			convert1(buf, out, 1, convert_varargs);
+			break;
+		case 1:			/* a function */
+			/* Check for a { at the start of the next line. */
+			more = ++line;
+f:			if ( line >= buf + (bufsize - 1) ) /* overflow check */
+			  goto wl;
+			if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL )
+			  goto wl;
+			switch ( *skipspace(more, 1) )
+			  {
+			  case '{':
+			    /* Definitely a function header. */
+			    convert1(buf, out, 0, convert_varargs);
+			    fputs(more, out);
+			    break;
+			  case 0:
+			    /* The next line was blank or a comment: */
+			    /* keep scanning for a non-comment. */
+			    line += strlen(line);
+			    goto f;
+			  default:
+			    /* buf isn't a function header, but */
+			    /* more might be. */
+			    fputs(buf, out);
+			    strcpy(buf, more);
+			    line = buf;
+			    goto test;
+			  }
+			break;
+		case -1:		/* maybe the start of a function */
+			if ( line != buf + (bufsize - 1) ) /* overflow check */
+			  continue;
+			/* falls through */
+		default:		/* not a function */
+wl:			fputs(buf, out);
+			break;
+		   }
+		line = buf;
+	   }
+	if ( line != buf )
+	  fputs(buf, out);
+	free(buf);
+	fclose(out);
+	fclose(in);
+	return 0;
+}
+
+/* Skip over space and comments, in either direction. */
+char *
+skipspace(p, dir)
+    register char *p;
+    register int dir;			/* 1 for forward, -1 for backward */
+{	for ( ; ; )
+	   {	while ( is_space(*p) )
+		  p += dir;
+		if ( !(*p == '/' && p[dir] == '*') )
+		  break;
+		p += dir;  p += dir;
+		while ( !(*p == '*' && p[dir] == '/') )
+		   {	if ( *p == 0 )
+			  return p;	/* multi-line comment?? */
+			p += dir;
+		   }
+		p += dir;  p += dir;
+	   }
+	return p;
+}
+
+/*
+ * Write blanks over part of a string.
+ * Don't overwrite end-of-line characters.
+ */
+int
+writeblanks(start, end)
+    char *start;
+    char *end;
+{	char *p;
+	for ( p = start; p < end; p++ )
+	  if ( *p != '\r' && *p != '\n' )
+	    *p = ' ';
+	return 0;
+}
+
+/*
+ * Test whether the string in buf is a function definition.
+ * The string may contain and/or end with a newline.
+ * Return as follows:
+ *	0 - definitely not a function definition;
+ *	1 - definitely a function definition;
+ *	2 - definitely a function prototype (NOT USED);
+ *	-1 - may be the beginning of a function definition,
+ *		append another line and look again.
+ * The reason we don't attempt to convert function prototypes is that
+ * Ghostscript's declaration-generating macros look too much like
+ * prototypes, and confuse the algorithms.
+ */
+int
+test1(buf)
+    char *buf;
+{	register char *p = buf;
+	char *bend;
+	char *endfn;
+	int contin;
+
+	if ( !isidfirstchar(*p) )
+	  return 0;		/* no name at left margin */
+	bend = skipspace(buf + strlen(buf) - 1, -1);
+	switch ( *bend )
+	   {
+	   case ';': contin = 0 /*2*/; break;
+	   case ')': contin = 1; break;
+	   case '{': return 0;		/* not a function */
+	   case '}': return 0;		/* not a function */
+	   default: contin = -1;
+	   }
+	while ( isidchar(*p) )
+	  p++;
+	endfn = p;
+	p = skipspace(p, 1);
+	if ( *p++ != '(' )
+	  return 0;		/* not a function */
+	p = skipspace(p, 1);
+	if ( *p == ')' )
+	  return 0;		/* no parameters */
+	/* Check that the apparent function name isn't a keyword. */
+	/* We only need to check for keywords that could be followed */
+	/* by a left parenthesis (which, unfortunately, is most of them). */
+	   {	static char *words[] =
+		   {	"asm", "auto", "case", "char", "const", "double",
+			"extern", "float", "for", "if", "int", "long",
+			"register", "return", "short", "signed", "sizeof",
+			"static", "switch", "typedef", "unsigned",
+			"void", "volatile", "while", 0
+		   };
+		char **key = words;
+		char *kp;
+		int len = endfn - buf;
+
+		while ( (kp = *key) != 0 )
+		   {	if ( strlen(kp) == len && !strncmp(kp, buf, len) )
+			  return 0;	/* name is a keyword */
+			key++;
+		   }
+	   }
+	return contin;
+}
+
+/* Convert a recognized function definition or header to K&R syntax. */
+int
+convert1(buf, out, header, convert_varargs)
+    char *buf;
+    FILE *out;
+    int header;			/* Boolean */
+    int convert_varargs;	/* Boolean */
+{	char *endfn;
+	register char *p;
+	char **breaks;
+	unsigned num_breaks = 2;	/* for testing */
+	char **btop;
+	char **bp;
+	char **ap;
+	char *vararg = 0;
+
+	/* Pre-ANSI implementations don't agree on whether strchr */
+	/* is called strchr or index, so we open-code it here. */
+	for ( endfn = buf; *(endfn++) != '('; )
+	  ;
+top:	p = endfn;
+	breaks = (char **)malloc(sizeof(char *) * num_breaks * 2);
+	if ( breaks == 0 )
+	   {	/* Couldn't allocate break table, give up */
+		fprintf(stderr, "Unable to allocate break table!\n");
+		fputs(buf, out);
+		return -1;
+	   }
+	btop = breaks + num_breaks * 2 - 2;
+	bp = breaks;
+	/* Parse the argument list */
+	do
+	   {	int level = 0;
+		char *lp = NULL;
+		char *rp;
+		char *end = NULL;
+
+		if ( bp >= btop )
+		   {	/* Filled up break table. */
+			/* Allocate a bigger one and start over. */
+			free((char *)breaks);
+			num_breaks <<= 1;
+			goto top;
+		   }
+		*bp++ = p;
+		/* Find the end of the argument */
+		for ( ; end == NULL; p++ )
+		   {	switch(*p)
+			   {
+			   case ',':
+				if ( !level ) end = p;
+				break;
+			   case '(':
+				if ( !level ) lp = p;
+				level++;
+				break;
+			   case ')':
+				if ( --level < 0 ) end = p;
+				else rp = p;
+				break;
+			   case '/':
+				p = skipspace(p, 1) - 1;
+				break;
+			   default:
+				;
+			   }
+		   }
+		/* Erase any embedded prototype parameters. */
+		if ( lp )
+		  writeblanks(lp + 1, rp);
+		p--;			/* back up over terminator */
+		/* Find the name being declared. */
+		/* This is complicated because of procedure and */
+		/* array modifiers. */
+		for ( ; ; )
+		   {	p = skipspace(p - 1, -1);
+			switch ( *p )
+			   {
+			   case ']':	/* skip array dimension(s) */
+			   case ')':	/* skip procedure args OR name */
+			   {	int level = 1;
+				while ( level )
+				 switch ( *--p )
+				   {
+				   case ']': case ')': level++; break;
+				   case '[': case '(': level--; break;
+				   case '/': p = skipspace(p, -1) + 1; break;
+				   default: ;
+				   }
+			   }
+				if ( *p == '(' && *skipspace(p + 1, 1) == '*' )
+				   {	/* We found the name being declared */
+					while ( !isidfirstchar(*p) )
+					  p = skipspace(p, 1) + 1;
+					goto found;
+				   }
+				break;
+			   default:
+				goto found;
+			   }
+		   }
+found:		if ( *p == '.' && p[-1] == '.' && p[-2] == '.' )
+		  {	if ( convert_varargs )
+			  {	*bp++ = "va_alist";
+				vararg = p-2;
+			  }
+			else
+			  {	p++;
+				if ( bp == breaks + 1 )	/* sole argument */
+				  writeblanks(breaks[0], p);
+				else
+				  writeblanks(bp[-1] - 1, p);
+				bp--;
+			  }
+		   }
+		else
+		   {	while ( isidchar(*p) ) p--;
+			*bp++ = p+1;
+		   }
+		p = end;
+	   }
+	while ( *p++ == ',' );
+	*bp = p;
+	/* Make a special check for 'void' arglist */
+	if ( bp == breaks+2 )
+	   {	p = skipspace(breaks[0], 1);
+		if ( !strncmp(p, "void", 4) )
+		   {	p = skipspace(p+4, 1);
+			if ( p == breaks[2] - 1 )
+			   {	bp = breaks;	/* yup, pretend arglist is empty */
+				writeblanks(breaks[0], p + 1);
+			   }
+		   }
+	   }
+	/* Put out the function name and left parenthesis. */
+	p = buf;
+	while ( p != endfn ) putc(*p, out), p++;
+	/* Put out the declaration. */
+	if ( header )
+	  {	fputs(");", out);
+		for ( p = breaks[0]; *p; p++ )
+		  if ( *p == '\r' || *p == '\n' )
+		    putc(*p, out);
+	  }
+	else
+	  {	for ( ap = breaks+1; ap < bp; ap += 2 )
+		  {	p = *ap;
+			while ( isidchar(*p) )
+			  putc(*p, out), p++;
+			if ( ap < bp - 1 )
+			  fputs(", ", out);
+		  }
+		fputs(")  ", out);
+		/* Put out the argument declarations */
+		for ( ap = breaks+2; ap <= bp; ap += 2 )
+		  (*ap)[-1] = ';';
+		if ( vararg != 0 )
+		  {	*vararg = 0;
+			fputs(breaks[0], out);		/* any prior args */
+			fputs("va_dcl", out);		/* the final arg */
+			fputs(bp[0], out);
+		  }
+		else
+		  fputs(breaks[0], out);
+	  }
+	free((char *)breaks);
+	return 0;
+}

src/png/example.c

@@ -0,0 +1,702 @@
+
+/* example.c - an example of using libpng */
+
+/* This is an example of how to use libpng to read and write PNG files.
+ * The file libpng.txt is much more verbose then this.  If you have not
+ * read it, do so first.  This was designed to be a starting point of an
+ * implementation.  This is not officially part of libpng, and therefore
+ * does not require a copyright notice.
+ *
+ * This file does not currently compile, because it is missing certain
+ * parts, like allocating memory to hold an image.  You will have to
+ * supply these parts to get it to compile.  For an example of a minimal
+ * working PNG reader/writer, see pngtest.c, included in this distribution.
+ */
+
+#include "png.h"
+
+/* Check to see if a file is a PNG file using png_sig_cmp().  png_sig_cmp()
+ * returns zero if the image is a PNG and nonzero if it isn't a PNG.
+ *
+ * The function check_if_png() shown here, but not used, returns nonzero (true)
+ * if the file can be opened and is a PNG, 0 (false) otherwise.
+ *
+ * If this call is successful, and you are going to keep the file open,
+ * you should call png_set_sig_bytes(png_ptr, PNG_BYTES_TO_CHECK); once
+ * you have created the png_ptr, so that libpng knows your application
+ * has read that many bytes from the start of the file.  Make sure you
+ * don't call png_set_sig_bytes() with more than 8 bytes read or give it
+ * an incorrect number of bytes read, or you will either have read too
+ * many bytes (your fault), or you are telling libpng to read the wrong
+ * number of magic bytes (also your fault).
+ *
+ * Many applications already read the first 2 or 4 bytes from the start
+ * of the image to determine the file type, so it would be easiest just
+ * to pass the bytes to png_sig_cmp() or even skip that if you know
+ * you have a PNG file, and call png_set_sig_bytes().
+ */
+#define PNG_BYTES_TO_CHECK 4
+int check_if_png(char *file_name, FILE **fp)
+{
+   char buf[PNG_BYTES_TO_CHECK];
+
+   /* Open the prospective PNG file. */
+   if ((*fp = fopen(file_name, "rb")) != NULL);
+      return 0;
+
+   /* Read in some of the signature bytes */
+   if (fread(buf, 1, PNG_BYTES_TO_CHECK, *fp) != PNG_BYTES_TO_CHECK)
+      return 0;
+
+   /* Compare the first PNG_BYTES_TO_CHECK bytes of the signature.
+      Return nonzero (true) if they match */
+
+   return(!png_sig_cmp(buf, (png_size_t)0, PNG_BYTES_TO_CHECK));
+}
+
+/* Read a PNG file.  You may want to return an error code if the read
+ * fails (depending upon the failure).  There are two "prototypes" given
+ * here - one where we are given the filename, and we need to open the
+ * file, and the other where we are given an open file (possibly with
+ * some or all of the magic bytes read - see comments above).
+ */
+#ifdef open_file /* prototype 1 */
+void read_png(char *file_name)  /* We need to open the file */
+{
+   png_structp png_ptr;
+   png_infop info_ptr;
+   unsigned int sig_read = 0;
+   png_uint_32 width, height;
+   int bit_depth, color_type, interlace_type;
+   FILE *fp;
+
+   if ((fp = fopen(file_name, "rb")) == NULL)
+      return;
+#else no_open_file /* prototype 2 */
+void read_png(FILE *fp, unsigned int sig_read)  /* file is already open */
+{
+   png_structp png_ptr;
+   png_infop info_ptr;
+   png_uint_32 width, height;
+   int bit_depth, color_type, interlace_type;
+#endif no_open_file /* only use one prototype! */
+
+   /* Create and initialize the png_struct with the desired error handler
+    * functions.  If you want to use the default stderr and longjump method,
+    * you can supply NULL for the last three parameters.  We also supply the
+    * the compiler header file version, so that we know if the application
+    * was compiled with a compatible version of the library.  REQUIRED
+    */
+   png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
+      png_voidp user_error_ptr, user_error_fn, user_warning_fn);
+
+   if (png_ptr == NULL)
+   {
+      fclose(fp);
+      return;
+   }
+
+   /* Allocate/initialize the memory for image information.  REQUIRED. */
+   info_ptr = png_create_info_struct(png_ptr);
+   if (info_ptr == NULL)
+   {
+      fclose(fp);
+      png_destroy_read_struct(&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
+      return;
+   }
+
+   /* Set error handling if you are using the setjmp/longjmp method (this is
+    * the normal method of doing things with libpng).  REQUIRED unless you
+    * set up your own error handlers in the png_create_read_struct() earlier.
+    */
+   if (setjmp(png_ptr->jmpbuf))
+   {
+      /* Free all of the memory associated with the png_ptr and info_ptr */
+      png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
+      fclose(fp);
+      /* If we get here, we had a problem reading the file */
+      return;
+   }
+
+   /* One of the following I/O initialization methods is REQUIRED */
+#ifdef streams /* PNG file I/O method 1 */
+   /* Set up the input control if you are using standard C streams */
+   png_init_io(png_ptr, fp);
+
+#else no_streams /* PNG file I/O method 2 */
+   /* If you are using replacement read functions, instead of calling
+    * png_init_io() here you would call:
+    */
+   png_set_read_fn(png_ptr, (void *)user_io_ptr, user_read_fn);
+   /* where user_io_ptr is a structure you want available to the callbacks */
+#endif no_streams /* Use only one I/O method! */
+
+   /* If we have already read some of the signature */
+   png_set_sig_bytes(png_ptr, sig_read);
+
+   /* The call to png_read_info() gives us all of the information from the
+    * PNG file before the first IDAT (image data chunk).  REQUIRED
+    */
+   png_read_info(png_ptr, info_ptr);
+
+   png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
+       &interlace_type, NULL, NULL);
+
+/**** Set up the data transformations you want.  Note that these are all
+ **** optional.  Only call them if you want/need them.  Many of the
+ **** transformations only work on specific types of images, and many
+ **** are mutually exclusive.
+ ****/
+
+   /* tell libpng to strip 16 bit/color files down to 8 bits/color */
+   png_set_strip_16(png_ptr);
+
+   /* Strip alpha bytes from the input data without combining with th
+    * background (not recommended).
+    */
+   png_set_strip_alpha(png_ptr);
+
+   /* Extract multiple pixels with bit depths of 1, 2, and 4 from a single
+    * byte into separate bytes (useful for paletted and grayscale images).
+    */
+   png_set_packing(png_ptr);
+
+   /* Change the order of packed pixels to least significant bit first
+    * (not useful if you are using png_set_packing). */
+   png_set_packswap(png_ptr);
+
+   /* Expand paletted colors into true RGB triplets */
+   if (color_type == PNG_COLOR_TYPE_PALETTE)
+      png_set_expand(png_ptr);
+
+   /* Expand grayscale images to the full 8 bits from 1, 2, or 4 bits/pixel */
+   if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
+      png_set_expand(png_ptr);
+
+   /* Expand paletted or RGB images with transparency to full alpha channels
+    * so the data will be available as RGBA quartets.
+    */
+   if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
+      png_set_expand(png_ptr);
+
+   /* Set the background color to draw transparent and alpha images over.
+    * It is possible to set the red, green, and blue components directly
+    * for paletted images instead of supplying a palette index.  Note that
+    * even if the PNG file supplies a background, you are not required to
+    * use it - you should use the (solid) application background if it has one.
+    */
+
+   png_color_16 my_background, *image_background;
+
+   if (png_get_bKGD(png_ptr, info_ptr, &image_background))
+      png_set_background(png_ptr, image_background,
+                         PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
+   else
+      png_set_background(png_ptr, &my_background,
+                         PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
+
+   /* Some suggestions as to how to get a screen gamma value */
+
+   /* Note that screen gamma is (display_gamma/viewing_gamma) */
+   if (/* We have a user-defined screen gamma value */)
+   {
+      screen_gamma = user-defined screen_gamma;
+   }
+   /* This is one way that applications share the same screen gamma value */
+   else if ((gamma_str = getenv("SCREEN_GAMMA")) != NULL)
+   {
+      screen_gamma = atof(gamma_str);
+   }
+   /* If we don't have another value */
+   else
+   {
+      screen_gamma = 2.2;  /* A good guess for a PC monitors in a dimly
+                              lit room */
+      screen_gamma = 1.7 or 1.0;  /* A good guess for Mac systems */
+   }
+
+   /* Tell libpng to handle the gamma conversion for you.  The second call
+    * is a good guess for PC generated images, but it should be configurable
+    * by the user at run time by the user.  It is strongly suggested that
+    * your application support gamma correction.
+    */
+
+   int intent;
+
+   if (png_get_sRGB(png_ptr, info_ptr, &intent))
+      png_set_sRGB(png_ptr, intent, 0);
+   else
+   {
+      double image_gamma;
+      if (png_get_gAMA(png_ptr, info_ptr, &image_gamma))
+         png_set_gamma(png_ptr, screen_gamma, image_gamma);
+      else
+         png_set_gamma(png_ptr, screen_gamma, 0.45455);
+   }
+
+   /* Dither RGB files down to 8 bit palette or reduce palettes
+    * to the number of colors available on your screen.
+    */
+   if (color_type & PNG_COLOR_MASK_COLOR)
+   {
+      png_uint_32 num_palette;
+      png_colorp palette;
+
+      /* This reduces the image to the application supplied palette */
+      if (/* we have our own palette */)
+      {
+         /* An array of colors to which the image should be dithered */
+         png_color std_color_cube[MAX_SCREEN_COLORS];
+
+         png_set_dither(png_ptr, std_color_cube, MAX_SCREEN_COLORS,
+            MAX_SCREEN_COLORS, NULL, 0);
+      }
+      /* This reduces the image to the palette supplied in the file */
+      else if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette))
+      {
+         png_color16p histogram;
+
+         png_get_hIST(png_ptr, info_ptr, &histogram);
+
+         png_set_dither(png_ptr, palette, num_palette,
+                        max_screen_colors, histogram, 0);
+      }
+   }
+
+   /* invert monocrome files to have 0 as white and 1 as black */
+   png_set_invert_mono(png_ptr);
+
+   /* If you want to shift the pixel values from the range [0,255] or
+    * [0,65535] to the original [0,7] or [0,31], or whatever range the
+    * colors were originally in:
+    */
+   if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT))
+   {
+      png_color8p sig_bit;
+
+      png_get_sBIT(png_ptr, info_ptr, &sig_bit);
+      png_set_shift(png_ptr, sig_bit);
+   }
+
+   /* flip the RGB pixels to BGR (or RGBA to BGRA) */
+   png_set_bgr(png_ptr);
+
+   /* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
+   png_set_swap_alpha(png_ptr);
+
+   /* swap bytes of 16 bit files to least significant byte first */
+   png_set_swap(png_ptr);
+
+   /* Add filler (or alpha) byte (before/after each RGB triplet) */
+   png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER);
+
+   /* Turn on interlace handling.  REQUIRED if you are not using
+    * png_read_image().  To see how to handle interlacing passes,
+    * see the png_read_row() method below:
+    */
+   number_passes = png_set_interlace_handling(png_ptr);
+
+   /* Optional call to gamma correct and add the background to the palette
+    * and update info structure.  REQUIRED if you are expecting libpng to
+    * update the palette for you (ie you selected such a transform above).
+    */
+   png_read_update_info(png_ptr, info_ptr);
+
+   /* Allocate the memory to hold the image using the fields of info_ptr. */
+
+   /* The easiest way to read the image: */
+   png_bytep row_pointers[height];
+
+   for (row = 0; row < height; row++)
+   {
+      row_pointers[row] = malloc(png_get_rowbytes(png_ptr, info_ptr));
+   }
+
+   /* Now it's time to read the image.  One of these methods is REQUIRED */
+#ifdef entire /* Read the entire image in one go */
+   png_read_image(png_ptr, row_pointers);
+
+#else no_entire /* Read the image one or more scanlines at a time */
+   /* The other way to read images - deal with interlacing: */
+
+   for (pass = 0; pass < number_passes; pass++)
+   {
+#ifdef single /* Read the image a single row at a time */
+      for (y = 0; y < height; y++)
+      {
+         png_read_rows(png_ptr, &row_pointers[y], NULL, 1);
+      }
+
+#else no_single /* Read the image several rows at a time */
+      for (y = 0; y < height; y += number_of_rows)
+      {
+#ifdef sparkle /* Read the image using the "sparkle" effect. */
+         png_read_rows(png_ptr, &row_pointers[y], NULL, number_of_rows);
+
+         png_read_rows(png_ptr, NULL, row_pointers[y], number_of_rows);
+#else no_sparkle /* Read the image using the "rectangle" effect */
+         png_read_rows(png_ptr, NULL, &row_pointers[y], number_of_rows);
+#endif no_sparkle /* use only one of these two methods */
+      }
+
+      /* if you want to display the image after every pass, do
+         so here */
+#endif no_single /* use only one of these two methods */
+   }
+#endif no_entire /* use only one of these two methods */
+
+   /* read rest of file, and get additional chunks in info_ptr - REQUIRED */
+   png_read_end(png_ptr, info_ptr);
+
+   /* clean up after the read, and free any memory allocated - REQUIRED */
+   png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
+
+   /* close the file */
+   fclose(fp);
+
+   /* that's it */
+   return;
+}
+
+/* progressively read a file */
+
+int
+initialize_png_reader(png_structp *png_ptr, png_infop *info_ptr)
+{
+   /* Create and initialize the png_struct with the desired error handler
+    * functions.  If you want to use the default stderr and longjump method,
+    * you can supply NULL for the last three parameters.  We also check that
+    * the library version is compatible in case we are using dynamically
+    * linked libraries.
+    */
+   *png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
+       png_voidp user_error_ptr, user_error_fn, user_warning_fn);
+
+   if (*png_ptr == NULL)
+   {
+      *info_ptr = NULL;
+      return ERROR;
+   }
+
+   *info_ptr = png_create_info_struct(png_ptr);
+
+   if (*info_ptr == NULL)
+   {
+      png_destroy_read_struct(png_ptr, info_ptr, (png_infopp)NULL);
+      return ERROR;
+   }
+
+   if (setjmp((*png_ptr)->jmpbuf))
+   {
+      png_destroy_read_struct(png_ptr, info_ptr, (png_infopp)NULL);
+      return ERROR;
+   }
+
+   /* This one's new.  You will need to provide all three
+    * function callbacks, even if you aren't using them all.
+    * If you aren't using all functions, you can specify NULL
+    * parameters.  Even when all three functions are NULL,
+    * you need to call png_set_progressive_read_fn().
+    * These functions shouldn't be dependent on global or
+    * static variables if you are decoding several images
+    * simultaneously.  You should store stream specific data
+    * in a separate struct, given as the second parameter,
+    * and retrieve the pointer from inside the callbacks using
+    * the function png_get_progressive_ptr(png_ptr).
+    */
+   png_set_progressive_read_fn(*png_ptr, (void *)stream_data,
+      info_callback, row_callback, end_callback);
+
+   return OK;
+}
+
+int
+process_data(png_structp *png_ptr, png_infop *info_ptr,
+   png_bytep buffer, png_uint_32 length)
+{
+   if (setjmp((*png_ptr)->jmpbuf))
+   {
+      /* Free the png_ptr and info_ptr memory on error */
+      png_destroy_read_struct(png_ptr, info_ptr, (png_infopp)NULL);
+      return ERROR;
+   }
+
+   /* This one's new also.  Simply give it chunks of data as
+    * they arrive from the data stream (in order, of course).
+    * On Segmented machines, don't give it any more than 64K.
+    * The library seems to run fine with sizes of 4K, although
+    * you can give it much less if necessary (I assume you can
+    * give it chunks of 1 byte, but I haven't tried with less
+    * than 256 bytes yet).  When this function returns, you may
+    * want to display any rows that were generated in the row
+    * callback, if you aren't already displaying them there.
+    */
+   png_process_data(*png_ptr, *info_ptr, buffer, length);
+   return OK;
+}
+
+info_callback(png_structp png_ptr, png_infop info)
+{
+/* do any setup here, including setting any of the transformations
+ * mentioned in the Reading PNG files section.  For now, you _must_
+ * call either png_start_read_image() or png_read_update_info()
+ * after all the transformations are set (even if you don't set
+ * any).  You may start getting rows before png_process_data()
+ * returns, so this is your last chance to prepare for that.
+ */
+}
+
+row_callback(png_structp png_ptr, png_bytep new_row,
+   png_uint_32 row_num, int pass)
+{
+/* this function is called for every row in the image.  If the
+ * image is interlacing, and you turned on the interlace handler,
+ * this function will be called for every row in every pass.
+ * Some of these rows will not be changed from the previous pass.
+ * When the row is not changed, the new_row variable will be NULL.
+ * The rows and passes are called in order, so you don't really
+ * need the row_num and pass, but I'm supplying them because it
+ * may make your life easier.
+ *
+ * For the non-NULL rows of interlaced images, you must call
+ * png_progressive_combine_row() passing in the row and the
+ * old row.  You can call this function for NULL rows (it will
+ * just return) and for non-interlaced images (it just does the
+ * memcpy for you) if it will make the code easier.  Thus, you
+ * can just do this for all cases:
+ */
+
+   png_progressive_combine_row(png_ptr, old_row, new_row);
+
+/* where old_row is what was displayed for previous rows.  Note
+ * that the first pass (pass == 0 really) will completely cover
+ * the old row, so the rows do not have to be initialized.  After
+ * the first pass (and only for interlaced images), you will have
+ * to pass the current row, and the function will combine the
+ * old row and the new row.
+ */
+}
+
+end_callback(png_structp png_ptr, png_infop info)
+{
+/* this function is called when the whole image has been read,
+ * including any chunks after the image (up to and including
+ * the IEND).  You will usually have the same info chunk as you
+ * had in the header, although some data may have been added
+ * to the comments and time fields.
+ *
+ * Most people won't do much here, perhaps setting a flag that
+ * marks the image as finished.
+ */
+}
+
+/* write a png file */
+void write_png(char *file_name /* , ... other image information ... */)
+{
+   FILE *fp;
+   png_structp png_ptr;
+   png_infop info_ptr;
+
+   /* open the file */
+   fp = fopen(file_name, "wb");
+   if (fp == NULL)
+      return;
+
+   /* Create and initialize the png_struct with the desired error handler
+    * functions.  If you want to use the default stderr and longjump method,
+    * you can supply NULL for the last three parameters.  We also check that
+    * the library version is compatible with the one used at compile time,
+    * in case we are using dynamically linked libraries.  REQUIRED.
+    */
+   png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
+      png_voidp user_error_ptr, user_error_fn, user_warning_fn);
+
+   if (png_ptr == NULL)
+   {
+      fclose(fp);
+      return;
+   }
+
+   /* Allocate/initialize the image information data.  REQUIRED */
+   info_ptr = png_create_info_struct(png_ptr);
+   if (info_ptr == NULL)
+   {
+      fclose(fp);
+      png_destroy_write_struct(&png_ptr,  (png_infopp)NULL);
+      return;
+   }
+
+   /* Set error handling.  REQUIRED if you aren't supplying your own
+    * error hadnling functions in the png_create_write_struct() call.
+    */
+   if (setjmp(png_ptr->jmpbuf))
+   {
+      /* If we get here, we had a problem reading the file */
+      fclose(fp);
+      png_destroy_write_struct(&png_ptr,  (png_infopp)NULL);
+      return;
+   }
+
+   /* One of the following I/O initialization functions is REQUIRED */
+#ifdef streams /* I/O initialization method 1 */
+   /* set up the output control if you are using standard C streams */
+   png_init_io(png_ptr, fp);
+#else no_streams /* I/O initialization method 2 */
+   /* If you are using replacement read functions, instead of calling
+    * png_init_io() here you would call */
+   png_set_write_fn(png_ptr, (void *)user_io_ptr, user_write_fn,
+      user_IO_flush_function);
+   /* where user_io_ptr is a structure you want available to the callbacks */
+#endif no_streams /* only use one initialization method */
+
+   /* Set the image information here.  Width and height are up to 2^31,
+    * bit_depth is one of 1, 2, 4, 8, or 16, but valid values also depend on
+    * the color_type selected. color_type is one of PNG_COLOR_TYPE_GRAY,
+    * PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_PALETTE, PNG_COLOR_TYPE_RGB,
+    * or PNG_COLOR_TYPE_RGB_ALPHA.  interlace is either PNG_INTERLACE_NONE or
+    * PNG_INTERLACE_ADAM7, and the compression_type and filter_type MUST
+    * currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE. REQUIRED
+    */
+   png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, PNG_COLOR_TYPE_???,
+      PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
+
+   /* set the palette if there is one.  REQUIRED for indexed-color images */
+   palette = (png_colorp)png_malloc(png_ptr, 256 * sizeof (png_color));
+   /* ... set palette colors ... */
+   png_set_PLTE(png_ptr, info_ptr, palette, 256);
+
+   /* optional significant bit chunk */
+   /* if we are dealing with a grayscale image then */
+   sig_bit.gray = true_bit_depth;
+   /* otherwise, if we are dealing with a color image then */
+   sig_bit.red = true_red_bit_depth;
+   sig_bit.green = true_green_bit_depth;
+   sig_bit.blue = true_blue_bit_depth;
+   /* if the image has an alpha channel then */
+   sig_bit.alpha = true_alpha_bit_depth;
+   png_set_sBIT(png_ptr, info_ptr, sig_bit);
+
+
+   /* Optional gamma chunk is strongly suggested if you have any guess
+    * as to the correct gamma of the image.
+    */
+   png_set_gAMA(png_ptr, info_ptr, gamma);
+
+   /* Optionally write comments into the image */
+   text_ptr[0].key = "Title";
+   text_ptr[0].text = "Mona Lisa";
+   text_ptr[0].compression = PNG_TEXT_COMPRESSION_NONE;
+   text_ptr[1].key = "Author";
+   text_ptr[1].text = "Leonardo DaVinci";
+   text_ptr[1].compression = PNG_TEXT_COMPRESSION_NONE;
+   text_ptr[2].key = "Description";
+   text_ptr[2].text = "<long text>";
+   text_ptr[2].compression = PNG_TEXT_COMPRESSION_zTXt;
+   png_set_text(png_ptr, info_ptr, text_ptr, 3);
+
+   /* other optional chunks like cHRM, bKGD, tRNS, tIME, oFFs, pHYs, */
+   /* note that if sRGB is present the cHRM chunk must be ignored
+    * on read and must be written in accordance with the sRGB profile */
+
+   /* Write the file header information.  REQUIRED */
+   png_write_info(png_ptr, info_ptr);
+
+   /* Once we write out the header, the compression type on the text
+    * chunks gets changed to PNG_TEXT_COMPRESSION_NONE_WR or
+    * PNG_TEXT_COMPRESSION_zTXt_WR, so it doesn't get written out again
+    * at the end.
+    */
+
+   /* set up the transformations you want.  Note that these are
+    * all optional.  Only call them if you want them.
+    */
+
+   /* invert monocrome pixels */
+   png_set_invert_mono(png_ptr);
+
+   /* Shift the pixels up to a legal bit depth and fill in
+    * as appropriate to correctly scale the image.
+    */
+   png_set_shift(png_ptr, &sig_bit);
+
+   /* pack pixels into bytes */
+   png_set_packing(png_ptr);
+
+   /* swap location of alpha bytes from ARGB to RGBA */
+   png_set_swap_alpha(png_ptr);
+
+   /* Get rid of filler (OR ALPHA) bytes, pack XRGB/RGBX/ARGB/RGBA into
+    * RGB (4 channels -> 3 channels). The second parameter is not used.
+    */
+   png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
+
+   /* flip BGR pixels to RGB */
+   png_set_bgr(png_ptr);
+
+   /* swap bytes of 16-bit files to most significant byte first */
+   png_set_swap(png_ptr);
+
+   /* swap bits of 1, 2, 4 bit packed pixel formats */
+   png_set_packswap(png_ptr);
+
+   /* turn on interlace handling if you are not using png_write_image() */
+   if (interlacing)
+      number_passes = png_set_interlace_handling(png_ptr);
+   else
+      number_passes = 1;
+
+   /* The easiest way to write the image (you may have a different memory
+    * layout, however, so choose what fits your needs best).  You need to
+    * use the first method if you aren't handling interlacing yourself.
+    */
+   png_uint_32 k, height, width;
+   png_byte image[height][width];
+   png_bytep row_pointers[height];
+   for (k = 0; k < height; k++)
+     row_pointers[k] = image + k*width;
+
+   /* One of the following output methods is REQUIRED */
+#ifdef entire /* write out the entire image data in one call */
+   png_write_image(png_ptr, row_pointers);
+
+   /* the other way to write the image - deal with interlacing */
+
+#else no_entire /* write out the image data by one or more scanlines */
+   /* The number of passes is either 1 for non-interlaced images,
+    * or 7 for interlaced images.
+    */
+   for (pass = 0; pass < number_passes; pass++)
+   {
+      /* Write a few rows at a time. */
+      png_write_rows(png_ptr, &row_pointers[first_row], number_of_rows);
+
+      /* If you are only writing one row at a time, this works */
+      for (y = 0; y < height; y++)
+      {
+         png_write_rows(png_ptr, &row_pointers[y], 1);
+      }
+   }
+#endif no_entire /* use only one output method */
+
+   /* You can write optional chunks like tEXt, zTXt, and tIME at the end
+    * as well.
+    */
+
+   /* It is REQUIRED to call this to finish writing the rest of the file */
+   png_write_end(png_ptr, info_ptr);
+
+   /* if you malloced the palette, free it here */
+   free(info_ptr->palette);
+
+   /* if you allocated any text comments, free them here */
+
+   /* clean up after the write, and free any memory allocated */
+   png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
+
+   /* close the file */
+   fclose(fp);
+
+   /* that's it */
+   return;
+}
+

src/png/libpngpf.3

@@ -0,0 +1,347 @@
+.TH LIBPNGPF 3 "January 14, 1999"
+.SH NAME
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.3 - January 14, 1999
+(private functions)
+.SH SYNOPSIS
+#include <png.h>
+
+void png_build_gamma_table (png_structp png_ptr);
+
+void png_build_grayscale_palette (int bit_depth, png_colorp
+palette);
+
+void png_calculate_crc (png_structp png_ptr, png_bytep ptr,
+png_size_t length);
+void png_check_chunk_name (png_structp png_ptr, png_bytep
+chunk_name);
+
+png_size_t png_check_keyword (png_structp png_ptr, png_charp
+key, png_charpp new_key);
+
+void png_combine_row (png_structp png_ptr, png_bytep row, int
+mask);
+
+void png_correct_palette (png_structp png_ptr, png_colorp
+palette, int num_palette);
+
+int png_crc_error (png_structp png_ptr);
+
+int png_crc_finish (png_structp png_ptr, png_uint_32 skip);
+
+void png_crc_read (png_structp png_ptr, png_bytep buf,
+png_size_t length);
+
+png_voidp png_create_struct (int type, png_malloc_ptr malloc_fn);
+
+png_voidp png_create_struct_2 (int type);
+
+void png_destroy_struct (png_voidp struct_ptr);
+
+void png_destroy_struct_2 (png_voidp struct_ptr, png_free_ptr
+free_fn);
+
+void png_do_background (png_row_infop row_info, png_bytep row,
+png_color_16p trans_values, png_color_16p background,
+png_color_16p background_1, png_bytep gamma_table, png_bytep
+gamma_from_1, png_bytep gamma_to_1, png_uint_16pp gamma_16,
+png_uint_16pp gamma_16_from_1, png_uint_16pp gamma_16_to_1, int
+gamma_shift);
+
+void png_do_bgr (png_row_infop row_info, png_bytep row);
+
+void png_do_chop (png_row_infop row_info, png_bytep row);
+
+void png_do_dither (png_row_infop row_info, png_bytep row,
+png_bytep palette_lookup, png_bytep dither_lookup);
+
+void png_do_expand (png_row_infop row_info, png_bytep row,
+png_color_16p trans_value);
+
+void png_do_expand_palette (png_row_infop row_info, png_bytep
+row, png_colorp palette, png_bytep trans, int num_trans);
+
+void png_do_gamma (png_row_infop row_info, png_bytep row,
+png_bytep gamma_table, png_uint_16pp gamma_16_table, int
+gamma_shift);
+
+void png_do_gray_to_rgb (png_row_infop row_info, png_bytep
+row);
+
+void png_do_invert (png_row_infop row_info, png_bytep row);
+
+void png_do_pack (png_row_infop row_info, png_bytep row,
+png_uint_32 bit_depth);
+
+void png_do_packswap (png_row_infop row_info, png_bytep row);
+
+void png_do_read_filler (png_row_infop row_info, png_bytep row,
+png_uint_32 filler, png_uint_32 flags);
+
+void png_do_read_interlace (png_row_infop row_info, png_bytep
+row, int pass, png_uint_32 transformations);
+
+void png_do_read_invert_alpha (png_row_infop row_info,
+png_bytep row);
+
+void png_do_read_swap_alpha (png_row_infop row_info, png_bytep
+row);
+
+void png_do_read_transformations (png_structp png_ptr);
+
+int png_do_rgb_to_gray (png_row_infop row_info, png_bytep
+row);
+
+void png_do_shift (png_row_infop row_info, png_bytep row,
+png_color_8p bit_depth);
+
+void png_do_strip_filler (png_row_infop row_info, png_bytep
+row, png_uint_32 flags);
+
+void png_do_swap (png_row_infop row_info, png_bytep row);
+
+void png_do_unpack (png_row_infop row_info, png_bytep row);
+
+void png_do_unshift (png_row_infop row_info, png_bytep row,
+png_color_8p sig_bits);
+
+void png_do_write_interlace (png_row_infop row_info, png_bytep
+row, int pass);
+
+void png_do_write_invert_alpha (png_row_infop row_info,
+png_bytep row);
+
+void png_do_write_swap_alpha (png_row_infop row_info, png_bytep
+row);
+
+void png_do_write_transformations (png_structp png_ptr);
+
+void *png_far_to_near (png_structp png_ptr,png_voidp ptr,
+int check);
+
+void png_flush (png_structp png_ptr);
+
+png_int_32 png_get_int_32 (png_bytep buf);
+
+png_uint_16 png_get_uint_16 (png_bytep buf);
+
+png_uint_32 png_get_uint_32 (png_bytep buf);
+
+void png_handle_bKGD (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_cHRM (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_gAMA (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_hIST (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_IEND (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_IHDR (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_oFFs (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_pCAL (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_pHYs (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_PLTE (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_sBIT (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_sRGB (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_tEXt (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_tIME (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_tRNS (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_handle_unknown (png_structp png_ptr, png_infop
+info_ptr, png_uint_32 length);
+
+void png_handle_zTXt (png_structp png_ptr, png_infop info_ptr,
+png_uint_32 length);
+
+void png_info_destroy (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_init_read_transformations (png_structp png_ptr);
+
+void png_process_IDAT_data (png_structp png_ptr, png_bytep
+buffer, png_size_t buffer_length);
+
+void png_process_some_data (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_push_check_crc (png_structp png_ptr);
+
+void png_push_crc_finish (png_structp png_ptr);
+
+void png_push_crc_skip (png_structp png_ptr, png_uint_32
+length);
+
+void png_push_fill_buffer (png_structp png_ptr, png_bytep
+buffer, png_size_t length);
+
+void png_push_handle_tEXt (png_structp png_ptr, png_infop
+info_ptr, png_uint_32 length);
+
+void png_push_handle_unknown (png_structp png_ptr, png_infop
+info_ptr, png_uint_32 length);
+
+void png_push_handle_zTXt (png_structp png_ptr, png_infop
+info_ptr, png_uint_32 length);
+
+void png_push_have_end (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_push_have_info (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_push_have_row (png_structp png_ptr, png_bytep row);
+
+void png_push_process_row (png_structp png_ptr);
+
+void png_push_read_chunk (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_push_read_end (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_push_read_IDAT (png_structp png_ptr);
+
+void png_push_read_sig (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_push_read_tEXt (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_push_read_zTXt (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_push_restore_buffer (png_structp png_ptr, png_bytep
+buffer, png_size_t buffer_length);
+
+void png_push_save_buffer (png_structp png_ptr);
+
+void png_read_data (png_structp png_ptr, png_bytep data,
+png_size_t length);
+
+void png_read_filter_row (png_structp png_ptr, png_row_infop
+row_info, png_bytep row, png_bytep prev_row, int filter);
+
+void png_read_finish_row (png_structp png_ptr);
+
+void png_read_init (png_structp png_ptr);
+
+void png_read_push_finish_row (png_structp png_ptr);
+
+void png_read_start_row (png_structp png_ptr);
+
+void png_read_transform_info (png_structp png_ptr, png_infop
+info_ptr);
+
+void png_reset_crc (png_structp png_ptr);
+
+void png_save_int_32 (png_bytep buf, png_int_32 i);
+
+void png_save_uint_16 (png_bytep buf, unsigned int i);
+
+void png_save_uint_32 (png_bytep buf, png_uint_32 i);
+
+void png_write_bKGD (png_structp png_ptr, png_color_16p values,
+int color_type);
+
+void png_write_cHRM (png_structp png_ptr, double white_x,
+double white_y, double red_x, double red_y, double green_x,
+double green_y, double blue_x, double blue_y);
+
+void png_write_data (png_structp png_ptr, png_bytep data,
+png_size_t length);
+void png_write_filtered_row (png_structp png_ptr, png_bytep
+filtered_row);
+
+void png_write_find_filter (png_structp png_ptr, png_row_infop
+row_info);
+
+void png_write_finish_row (png_structp png_ptr);
+
+void png_write_gAMA (png_structp png_ptr, double file_gamma);
+
+void png_write_hIST (png_structp png_ptr, png_uint_16p hist,
+int num_hist);
+
+void png_write_init (png_structp png_ptr);
+
+void png_write_IDAT (png_structp png_ptr, png_bytep data,
+png_size_t length);
+
+void png_write_IEND (png_structp png_ptr);
+
+void png_write_IHDR (png_structp png_ptr, png_uint_32 width,
+png_uint_32 height, int bit_depth, int color_type, int
+compression_type, int filter_type, int interlace_type);
+
+void png_write_oFFs (png_structp png_ptr, png_uint_32 x_offset,
+png_uint_32 y_offset, int unit_type);
+
+void png_write_pCAL (png_structp png_ptr, png_charp purpose,
+png_int_32 X0, png_int_32 X1, int type, int nparams, png_charp
+units, png_charpp params);
+
+void png_write_pHYs (png_structp png_ptr, png_uint_32
+x_pixels_per_unit, png_uint_32 y_pixels_per_unit, int
+unit_type);
+
+void png_write_PLTE (png_structp png_ptr, png_colorp palette,
+png_uint_32 num_pal);
+
+void png_write_sBIT (png_structp png_ptr, png_color_8p sbit,
+int color_type);
+
+void png_write_sig (png_structp png_ptr);
+
+void png_write_sRGB (png_structp png_ptr, int intent);
+
+void png_write_start_row (png_structp png_ptr);
+
+void png_write_tEXt (png_structp png_ptr, png_charp key,
+png_charp text, png_size_t text_len);
+
+void png_write_tIME (png_structp png_ptr, png_timep mod_time);
+
+void png_write_tRNS (png_structp png_ptr, png_bytep trans,
+png_color_16p values, int number, int color_type);
+
+void png_write_zTXt (png_structp png_ptr, png_charp key,
+png_charp text, png_size_t text_len, int compression);
+
+voidpf png_zalloc (voidpf png_ptr, uInt items, uInt size);
+
+void png_zfree (voidpf png_ptr, voidpf ptr);
+
+.SH DESCRIPTION
+The functions listed above are used privately by libpng
+and are not recommended for use by applications.  They
+are listed alphabetically here as an aid to libpng maintainers.
+See png.h for more information on these functions.
+
+.SH SEE ALSO
+libpng(3), png(5)
+.SH AUTHOR
+Glenn Randers-Pehrson

src/png/makefile.b32

@@ -0,0 +1,21 @@
+#
+# File:		makefile.b32
+# Author:	Julian Smart
+# Created:	1993
+# Updated:	
+# Copyright:
+#
+# "%W% %G%"
+#
+# Makefile : Builds PNG library (BC++ 32-bit)
+
+# WXWIN and BCCDIR are set by parent make
+
+LIBTARGET =..\..\lib\winpng.lib
+
+OBJECTS = png.obj pngread.obj pngrtran.obj pngrutil.obj \
+          pngpread.obj pngtrans.obj pngwrite.obj pngwtran.obj pngwutil.obj \
+          pngerror.obj pngmem.obj pngwio.obj pngrio.obj pngget.obj pngset.obj
+
+!include $(WXWIN)\src\makelib.b32
+

src/png/makefile.bcc

@@ -0,0 +1,92 @@
+#
+# File:		makefile.bcc
+# Author:	Julian Smart
+# Created:	1993
+# Updated:	
+# Copyright:
+#
+# "%W% %G%"
+#
+# Makefile : Builds PNG library (BC++ 16-bit) 
+
+# WXWIN and BCCDIR are set by parent make
+
+WXDIR = $(WXWIN)
+!include $(WXDIR)\src\makebcc.env
+
+WINPNGLIB = ..\..\lib\winpng.lib
+
+WXLIBDIR = $(WXDIR)\lib
+WXINC = $(WXDIR)\include\msw
+WXLIB = $(WXLIBDIR)\wx.lib 
+
+!if "$(FINAL)" == "0"
+OPT = -Od
+DEBUG_FLAGS= -v
+!else
+OPT = -Od
+DEBUG_FLAGS =
+!endif
+CPPFLAGS=$(DEBUG_FLAGS) $(OPT) @$(CFG)
+
+OBJECTS = png.obj pngread.obj pngrtran.obj pngrutil.obj \
+ pngpread.obj pngtrans.obj pngwrite.obj pngwtran.obj pngwutil.obj \
+ pngerror.obj pngmem.obj pngwio.obj pngrio.obj pngget.obj pngset.obj
+
+all: $(WINPNGLIB)
+
+$(WINPNGLIB): $(OBJECTS) 
+        erase $(WINPNGLIB)
+	tlib $(WINPNGLIB) /P512 @&&!
+-+$(OBJECTS:.obj =.obj -+) 
+!
+
+.$(SRCSUFF).obj:
+	bcc $(CPPFLAGS) -c {$< }
+
+.c.obj:
+	bcc $(CPPFLAGS) -P- -c {$< }
+
+$(CFG): makefile.bcc
+	copy &&!
+-H=$(WXDIR)\src\msw\borland.pch
+-2
+-P
+-d
+-w-hid
+-w-par
+-w-pia
+-w-aus
+-w-rch
+-ml
+-Od
+-WE
+-Fs-
+-Vf
+-Ff=4
+-I$(WXINC);$(BCCDIR)\include;$(WXDIR)/src/png;$(WXDIR)/src/zlib;$(WXDIR)/src/xpm
+-I$(WXDIR)\include\wx\msw\gnuwin32
+-L$(BCCDIR)\lib
+-D__WXWIN__
+-D__WXMSW__
+-D__WINDOWS__
+-D__WIN16__
+! $(CFG)
+!if "$(BOR_VER)" == "3.1"
+	echo -Ff=4 >>$(CFG)
+!elif "$(BOR_VER)" == "4"
+	echo -Ff=512 >>$(CFG)
+	echo -dc >>$(CFG)
+!else
+	echo -Ff=512 >>$(CFG)
+	echo -dc >>$(CFG)
+!endif
+
+clean:
+        -erase *.obj
+        -erase *.exe
+        -erase *.res
+        -erase *.map
+        -erase *.rws
+        -erase $(WINPNGLIB)
+

src/png/makefile.dos

@@ -0,0 +1,77 @@
+#
+# File:		makefile.dos
+# Author:	Julian Smart
+# Created:	1993
+# Updated:	
+# Copyright:	(c) 1993, AIAI, University of Edinburgh
+#
+# "%W% %G%"
+#
+# Makefile : Builds winpng.lib library for Windows 3.1
+
+# Change WXDIR or WXWIN to wherever wxWindows is found
+WXDIR = $(WXWIN)
+WXLIB = $(WXDIR)\lib\wx.lib
+WXINC = $(WXDIR)\include
+
+WINPNGDIR = $(WXDIR)\src\png
+WINPNGINC = $(WINPNGDIR)
+WINPNGLIB = ..\..\lib\winpng.lib
+
+INC = /I..\zlib
+
+LIBS=$(WXLIB) $(WINPNGLIB) libw llibcew commdlg ddeml shell # ctl3d
+
+# Set this to nothing if your compiler is MS C++ 7
+ZOPTION=
+
+!ifndef FINAL
+FINAL=0
+!endif
+
+PRECOMP=/YuWX.H 
+
+!if "$(FINAL)" == "0"
+OPT = /Od
+CPPFLAGS= /AL /W4 /Gt4 /Zi $(ZOPTION) /G2sw $(OPT) /D__WXMSW__ $(INC)
+CFLAGS= /AL /W4 /Gt4 /Zi /G2sw /Od /D__WXMSW__ $(INC)
+LINKFLAGS=/NOD /CO /ONERROR:NOEXE
+!else
+# /Ox for real FINAL version
+OPT = /Ox
+CPPFLAGS= /AL /W4 /Gt4 /Zi /Os /G2sw $(OPT) /D__WXMSW__ $(INC)
+CFLAGS= /AL /W4 /Gt4 /Zi /Os /G2sw /D__WXMSW__ $(INC)
+LINKFLAGS=/NOD /ONERROR:NOEXE
+!endif
+
+OBJECTS = png.obj pngread.obj pngrtran.obj pngrutil.obj \
+ pngpread.obj pngtrans.obj pngwrite.obj pngwtran.obj pngwutil.obj \
+ pngerror.obj pngmem.obj pngwio.obj pngrio.obj pngget.obj pngset.obj
+
+all:    $(WINPNGLIB)
+
+wx:
+        cd $(WXDIR)\src
+        nmake -f makefile.dos $(WXLIB) FINAL=$(FINAL)
+
+$(WINPNGLIB):      $(OBJECTS)
+        erase $(WINPNGLIB)
+        lib /PAGESIZE:128 @<<
+$(WINPNGLIB)
+y
+$(OBJECTS)
+nul
+;
+<<
+
+.c.obj:
+  cl $(CFLAGS) /c $*.c
+
+clean:
+        -erase *.obj
+        -erase *.exe
+        -erase *.lib
+        -erase *.sbr
+        -erase *.pdb
+
+cleanall:	clean

src/png/makefile.unx

@@ -0,0 +1,30 @@
+#
+# File:		makefile.unx
+# Author:	Julian Smart
+# Created:	1998
+# Updated:	
+# Copyright:	(c) 1998
+#
+#
+# Makefile for PNG library, Unix
+
+include ../make.env
+
+TARGETLIB=../../lib/libpng.a
+
+LIB_C_SRC = png.c pngread.c pngrtran.c pngrutil.c \
+ pngpread.c pngtrans.c pngwrite.c pngwtran.c pngwutil.c \
+ pngerror.c pngmem.c pngwio.c pngrio.c pngget.c pngset.c
+
+all:    $(TARGETLIB)
+
+# Define library objects
+OBJECTS=\
+ $(LIB_C_SRC:.c=.o)
+
+$(TARGETLIB) : $(OBJECTS)
+	ar $(AROPTIONS) $@ $(OBJECTS)
+	$(RANLIB) $@
+
+clean:
+	rm -f $(OBJECTS) $(TARGETLIB)

src/png/makefile.vc

@@ -0,0 +1,31 @@
+
+!if "$(FINAL)" == "1"
+LIBTARGET=$(WXDIR)\lib\png.lib
+!else if "$(FINAL)" == "hybrid"
+LIBTARGET=$(WXDIR)\lib\pngh.lib
+!else
+LIBTARGET=$(WXDIR)\lib\pngd.lib
+!endif
+
+OBJECTS = $D\png.obj \
+          $D\pngread.obj \
+          $D\pngrtran.obj \
+          $D\pngrutil.obj \
+          $D\pngpread.obj \
+          $D\pngtrans.obj \
+          $D\pngwrite.obj \
+          $D\pngwtran.obj \
+          $D\pngwutil.obj \
+          $D\pngerror.obj \
+          $D\pngmem.obj \
+          $D\pngwio.obj \
+          $D\pngrio.obj \
+          $D\pngget.obj \
+          $D\pngset.obj
+
+
+
+# Pull in standard variable definitions
+
+!include ..\makelib.vc
+

src/png/makefile.wat

@@ -0,0 +1,37 @@
+#!/binb/wmake.exe
+#
+# File:		makefile.wat
+# Author:	Julian Smart
+# Created:	1998
+#
+# Makefile : Builds PNG library for Watcom C++, WIN32
+
+WXDIR = ..\..
+EXTRACPPFLAGS=-i=..\zlib
+
+!include $(WXDIR)\src\makewat.env
+
+WXLIB = $(WXDIR)\lib
+
+LIBTARGET   = $(WXLIB)\png.lib
+
+OBJECTS = png.obj pngread.obj pngrtran.obj pngrutil.obj &
+ pngpread.obj pngtrans.obj pngwrite.obj pngwtran.obj pngwutil.obj &
+ pngerror.obj pngmem.obj pngwio.obj pngrio.obj pngget.obj pngset.obj
+
+all:        $(OBJECTS) $(LIBTARGET)
+
+$(LIBTARGET) : $(OBJECTS)
+    %create tmp.lbc
+    @for %i in ( $(OBJECTS) ) do @%append tmp.lbc +%i
+    wlib /b /c /n /p=512 $^@ @tmp.lbc
+
+clean:   .SYMBOLIC
+    -erase *.obj
+    -erase $(LIBTARGET)
+    -erase *.pch
+    -erase *.err
+    -erase *.lbc
+
+cleanall:   clean
+

src/png/png.5

@@ -0,0 +1,44 @@
+.TH PNG 5 "January 14, 1999"
+.SH NAME
+png \- Portable Network Graphics (PNG) format
+.SH DESCRIPTION
+PNG (Portable Network Graphics) is an extensible file format for the
+lossless, portable, well-compressed storage of raster images. PNG provides
+a patent-free replacement for GIF and can also replace many
+common uses of TIFF. Indexed-color, grayscale, and truecolor images are
+supported, plus an optional alpha channel. Sample depths range from
+1 to 16 bits.
+.br
+
+PNG is designed to work well in online viewing applications, such as the
+World Wide Web, so it is fully streamable with a progressive display
+option. PNG is robust, providing both full file integrity checking and
+fast, simple detection of common transmission errors. Also, PNG can store
+gamma and chromaticity data for improved color matching on heterogeneous
+platforms.
+
+.SH "SEE ALSO"
+.IR libpng(3), zlib(3), deflate(5), and zlib(5)
+.LP
+PNG specification:
+RFC 2083
+.IP
+.br
+ftp://ds.internic.net/rfc/rfc2083.txt
+.br
+or (as a W3C Recommendation) at
+.br
+http://www.w3.org/TR/REC-png.html
+.SH AUTHORS
+This man page: Glenn Randers-Pehrson
+.LP
+Portable Network Graphics (PNG) Specification Version 1.0 (October 1, 1996):
+Thomas Boutell and others (png-list@dworkin.wustl.edu).
+.LP
+
+.SH COPYRIGHT NOTICE
+The PNG specification is copyright (c) 1996 Massachussets Institute of
+Technology.  See the specification for conditions of use and distribution.
+.LP
+.\" end of man page
+

src/png/png.c

@@ -0,0 +1,359 @@
+
+/* png.c - location for general purpose libpng functions
+ *
+ * libpng version 1.0.3 - January 14, 1999
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ * 
+ */
+
+#define PNG_INTERNAL
+#define PNG_NO_EXTERN
+#include "png.h"
+
+/* Version information for C files.  This had better match the version
+ * string defined in png.h.
+ */
+
+char png_libpng_ver[12] = "1.0.3";
+
+/* Place to hold the signature string for a PNG file. */
+png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
+
+/* Constant strings for known chunk types.  If you need to add a chunk,
+ * add a string holding the name here.  If you want to make the code
+ * portable to EBCDIC machines, use ASCII numbers, not characters.
+ */
+png_byte FARDATA png_IHDR[5] = { 73,  72,  68,  82, '\0'};
+png_byte FARDATA png_IDAT[5] = { 73,  68,  65,  84, '\0'};
+png_byte FARDATA png_IEND[5] = { 73,  69,  78,  68, '\0'};
+png_byte FARDATA png_PLTE[5] = { 80,  76,  84,  69, '\0'};
+png_byte FARDATA png_bKGD[5] = { 98,  75,  71,  68, '\0'};
+png_byte FARDATA png_cHRM[5] = { 99,  72,  82,  77, '\0'};
+png_byte FARDATA png_gAMA[5] = {103,  65,  77,  65, '\0'};
+png_byte FARDATA png_hIST[5] = {104,  73,  83,  84, '\0'};
+png_byte FARDATA png_oFFs[5] = {111,  70,  70, 115, '\0'};
+png_byte FARDATA png_pCAL[5] = {112,  67,  65,  76, '\0'};
+png_byte FARDATA png_pHYs[5] = {112,  72,  89, 115, '\0'};
+png_byte FARDATA png_sBIT[5] = {115,  66,  73,  84, '\0'};
+png_byte FARDATA png_sRGB[5] = {115,  82,  71,  66, '\0'};
+png_byte FARDATA png_tEXt[5] = {116,  69,  88, 116, '\0'};
+png_byte FARDATA png_tIME[5] = {116,  73,  77,  69, '\0'};
+png_byte FARDATA png_tRNS[5] = {116,  82,  78,  83, '\0'};
+png_byte FARDATA png_zTXt[5] = {122,  84,  88, 116, '\0'};
+
+/* arrays to facilitate easy interlacing - use pass (0 - 6) as index */
+
+/* start of interlace block */
+int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};
+
+/* offset to next interlace block */
+int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
+
+/* start of interlace block in the y direction */
+int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};
+
+/* offset to next interlace block in the y direction */
+int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
+
+/* Width of interlace block.  This is not currently used - if you need
+ * it, uncomment it here and in png.h
+int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
+*/
+
+/* Height of interlace block.  This is not currently used - if you need
+ * it, uncomment it here and in png.h
+int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
+*/
+
+/* Mask to determine which pixels are valid in a pass */
+int FARDATA png_pass_mask[] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
+
+/* Mask to determine which pixels to overwrite while displaying */
+int FARDATA png_pass_dsp_mask[] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};
+
+
+/* Tells libpng that we have already handled the first "num_bytes" bytes
+ * of the PNG file signature.  If the PNG data is embedded into another
+ * stream we can set num_bytes = 8 so that libpng will not attempt to read
+ * or write any of the magic bytes before it starts on the IHDR.
+ */
+void
+png_set_sig_bytes(png_structp png_ptr, int num_bytes)
+{
+   png_debug(1, "in png_set_sig_bytes\n");
+   if (num_bytes > 8)
+      png_error(png_ptr, "Too many bytes for PNG signature.");
+
+   png_ptr->sig_bytes = num_bytes < 0 ? 0 : num_bytes;
+}
+
+/* Checks whether the supplied bytes match the PNG signature.  We allow
+ * checking less than the full 8-byte signature so that those apps that
+ * already read the first few bytes of a file to determine the file type
+ * can simply check the remaining bytes for extra assurance.  Returns
+ * an integer less than, equal to, or greater than zero if sig is found,
+ * respectively, to be less than, to match, or be greater than the correct
+ * PNG signature (this is the same behaviour as strcmp, memcmp, etc).
+ */
+int
+png_sig_cmp(png_bytep sig, png_size_t start, png_size_t num_to_check)
+{
+   if (num_to_check > 8)
+      num_to_check = 8;
+   else if (num_to_check < 1)
+      return (0);
+
+   if (start > 7)
+      return (0);
+
+   if (start + num_to_check > 8)
+      num_to_check = 8 - start;
+
+   return ((int)(png_memcmp(&sig[start], &png_sig[start], num_to_check)));
+}
+
+/* (Obsolete) function to check signature bytes.  It does not allow one
+ * to check a partial signature.  This function might be removed in the
+ * future - use png_sig_cmp().  Returns true (nonzero) if the file is a PNG.
+ */
+int
+png_check_sig(png_bytep sig, int num)
+{
+  return ((int)!png_sig_cmp(sig, (png_size_t)0, (png_size_t)num));
+}
+
+/* Function to allocate memory for zlib. */
+voidpf
+png_zalloc(voidpf png_ptr, uInt items, uInt size)
+{
+   png_uint_32 num_bytes = (png_uint_32)items * size;
+   png_voidp ptr = (png_voidp)png_malloc((png_structp)png_ptr, num_bytes);
+
+   if (num_bytes > (png_uint_32)0x8000L)
+   {
+      png_memset(ptr, 0, (png_size_t)0x8000L);
+      png_memset((png_bytep)ptr + (png_size_t)0x8000L, 0,
+         (png_size_t)(num_bytes - (png_uint_32)0x8000L));
+   }
+   else
+   {
+      png_memset(ptr, 0, (png_size_t)num_bytes);
+   }
+   return ((voidpf)ptr);
+}
+
+/* function to free memory for zlib */
+void
+png_zfree(voidpf png_ptr, voidpf ptr)
+{
+   png_free((png_structp)png_ptr, (png_voidp)ptr);
+}
+
+/* Reset the CRC variable to 32 bits of 1's.  Care must be taken
+ * in case CRC is > 32 bits to leave the top bits 0.
+ */
+void
+png_reset_crc(png_structp png_ptr)
+{
+   png_ptr->crc = crc32(0, Z_NULL, 0);
+}
+
+/* Calculate the CRC over a section of data.  We can only pass as
+ * much data to this routine as the largest single buffer size.  We
+ * also check that this data will actually be used before going to the
+ * trouble of calculating it.
+ */
+void
+png_calculate_crc(png_structp png_ptr, png_bytep ptr, png_size_t length)
+{
+   int need_crc = 1;
+
+   if (png_ptr->chunk_name[0] & 0x20)                     /* ancillary */
+   {
+      if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) ==
+          (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN))
+         need_crc = 0;
+   }
+   else                                                    /* critical */
+   {
+      if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE)
+         need_crc = 0;
+   }
+
+   if (need_crc)
+      png_ptr->crc = crc32(png_ptr->crc, ptr, (uInt)length);
+}
+
+/* Allocate the memory for an info_struct for the application.  We don't
+ * really need the png_ptr, but it could potentially be useful in the
+ * future.  This should be used in favour of malloc(sizeof(png_info))
+ * and png_info_init() so that applications that want to use a shared
+ * libpng don't have to be recompiled if png_info changes size.
+ */
+png_infop
+png_create_info_struct(png_structp png_ptr)
+{
+   png_infop info_ptr;
+
+   png_debug(1, "in png_create_info_struct\n");
+   if(png_ptr == NULL) return (NULL);
+#ifdef PNG_USER_MEM_SUPPORTED
+   if ((info_ptr = (png_infop)png_create_struct_2(PNG_STRUCT_INFO,
+      png_ptr->malloc_fn)) != NULL)
+#else
+   if ((info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO)) != NULL)
+#endif
+   {
+      png_info_init(info_ptr);
+   }
+
+   return (info_ptr);
+}
+
+/* This function frees the memory associated with a single info struct.
+ * Normally, one would use either png_destroy_read_struct() or
+ * png_destroy_write_struct() to free an info struct, but this may be
+ * useful for some applications.
+ */
+void
+png_destroy_info_struct(png_structp png_ptr, png_infopp info_ptr_ptr)
+{
+   png_infop info_ptr = NULL;
+
+   png_debug(1, "in png_destroy_info_struct\n");
+   if (info_ptr_ptr != NULL)
+      info_ptr = *info_ptr_ptr;
+
+   if (info_ptr != NULL)
+   {
+      png_info_destroy(png_ptr, info_ptr);
+
+#ifdef PNG_USER_MEM_SUPPORTED
+      png_destroy_struct_2((png_voidp)info_ptr, png_ptr->free_fn);
+#else
+      png_destroy_struct((png_voidp)info_ptr);
+#endif
+      *info_ptr_ptr = (png_infop)NULL;
+   }
+}
+
+/* Initialize the info structure.  This is now an internal function (0.89)
+ * and applications using it are urged to use png_create_info_struct()
+ * instead.
+ */
+void
+png_info_init(png_infop info_ptr)
+{
+   png_debug(1, "in png_info_init\n");
+   /* set everything to 0 */
+   png_memset(info_ptr, 0, sizeof (png_info));
+}
+
+/* This is an internal routine to free any memory that the info struct is
+ * pointing to before re-using it or freeing the struct itself.  Recall
+ * that png_free() checks for NULL pointers for us.
+ */
+void
+png_info_destroy(png_structp png_ptr, png_infop info_ptr)
+{
+#if defined(PNG_READ_tEXt_SUPPORTED) || defined(PNG_READ_zTXt_SUPPORTED)
+   png_debug(1, "in png_info_destroy\n");
+   if (info_ptr->text != NULL)
+   {
+      int i;
+      for (i = 0; i < info_ptr->num_text; i++)
+      {
+         png_free(png_ptr, info_ptr->text[i].key);
+      }
+      png_free(png_ptr, info_ptr->text);
+   }
+#endif
+#if defined(PNG_READ_pCAL_SUPPORTED)
+   png_free(png_ptr, info_ptr->pcal_purpose);
+   png_free(png_ptr, info_ptr->pcal_units);
+   if (info_ptr->pcal_params != NULL)
+   {
+      int i;
+      for (i = 0; i < (int)info_ptr->pcal_nparams; i++)
+      {
+         png_free(png_ptr, info_ptr->pcal_params[i]);
+      }
+      png_free(png_ptr, info_ptr->pcal_params);
+   }
+#endif
+
+   png_info_init(info_ptr);
+}
+
+/* This function returns a pointer to the io_ptr associated with the user
+ * functions.  The application should free any memory associated with this
+ * pointer before png_write_destroy() or png_read_destroy() are called.
+ */
+png_voidp
+png_get_io_ptr(png_structp png_ptr)
+{
+   return (png_ptr->io_ptr);
+}
+
+#if !defined(PNG_NO_STDIO)
+/* Initialize the default input/output functions for the PNG file.  If you
+ * use your own read or write routines, you can call either png_set_read_fn()
+ * or png_set_write_fn() instead of png_init_io().
+ */
+void
+png_init_io(png_structp png_ptr, FILE *fp)
+{
+   png_debug(1, "in png_init_io\n");
+   png_ptr->io_ptr = (png_voidp)fp;
+}
+#endif
+
+#if defined(PNG_TIME_RFC1123_SUPPORTED)
+/* Convert the supplied time into an RFC 1123 string suitable for use in
+ * a "Creation Time" or other text-based time string.
+ */
+png_charp
+png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
+{
+   static PNG_CONST char short_months[12][4] =
+        {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+         "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+
+   if (png_ptr->time_buffer == NULL)
+   {
+      png_ptr->time_buffer = (png_charp)png_malloc(png_ptr, (png_uint_32)(29*
+         sizeof(char)));
+   }
+
+#ifdef USE_FAR_KEYWORD
+   {
+      char near_time_buf[29];
+      sprintf(near_time_buf, "%d %s %d %02d:%02d:%02d +0000",
+               ptime->day % 32, short_months[(ptime->month - 1) % 12],
+               ptime->year, ptime->hour % 24, ptime->minute % 60,
+               ptime->second % 61);
+      png_memcpy(png_ptr->time_buffer, near_time_buf,
+      29*sizeof(char));
+   }
+#else
+   sprintf(png_ptr->time_buffer, "%d %s %d %02d:%02d:%02d +0000",
+               ptime->day % 32, short_months[(ptime->month - 1) % 12],
+               ptime->year, ptime->hour % 24, ptime->minute % 60,
+               ptime->second % 61);
+#endif
+   return ((png_charp)png_ptr->time_buffer);
+}
+#endif /* PNG_TIME_RFC1123_SUPPORTED */
+
+png_charp
+png_get_copyright(png_structp png_ptr)
+{
+   if(png_ptr == NULL)
+     /* silence compiler warning about unused png_ptr */ ;
+   return("\n libpng version 1.0.3 - January 14, 1999\n\
+   Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\
+   Copyright (c) 1996, 1997 Andreas Dilger\n\
+   Copyright (c) 1998, 1999, Glenn Randers-Pehrson\n");
+}

src/png/png.dsp

@@ -0,0 +1,160 @@
+# Microsoft Developer Studio Project File - Name="png" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Static Library" 0x0104
+
+CFG=png - Win32 Debug
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE 
+!MESSAGE NMAKE /f "PngVC.mak".
+!MESSAGE 
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE 
+!MESSAGE NMAKE /f "PngVC.mak" CFG="png - Win32 Debug"
+!MESSAGE 
+!MESSAGE Possible choices for configuration are:
+!MESSAGE 
+!MESSAGE "png - Win32 Release" (based on "Win32 (x86) Static Library")
+!MESSAGE "png - Win32 Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE 
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName "PngVC"
+# PROP Scc_LocalPath "."
+CPP=cl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "png - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c
+# ADD CPP /nologo /MD /W1 /O1 /I "..\zlib" /D "WIN32" /D "_WINDOWS" /D "__WINDOWS__" /D "__WXMSW__" /D "__WIN95__" /D "__WIN32__" /D WINVER=0x0400 /D "STRICT" /YX /FD /c
+# ADD BASE RSC /l 0x809 /d "NDEBUG"
+# ADD RSC /l 0x809 /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo /out:"..\..\lib\png.lib"
+
+!ELSEIF  "$(CFG)" == "png - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
+# ADD CPP /nologo /MDd /W1 /Gm /Zi /Od /I "..\zlib" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "__WINDOWS__" /D "__WXMSW__" /D "__WXDEBUG__" /D "__WIN95__" /D "__WIN32__" /D WINVER=0x0400 /D "STRICT" /YX /FD /GZ /c
+# ADD BASE RSC /l 0x809 /d "_DEBUG"
+# ADD RSC /l 0x809 /d "_DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo /out:"..\..\lib\pngd.lib"
+
+!ENDIF 
+
+# Begin Target
+
+# Name "png - Win32 Release"
+# Name "png - Win32 Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
+# Begin Source File
+
+SOURCE=.\png.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngerror.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngget.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngmem.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngpread.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngread.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngrio.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngrtran.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngrutil.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngset.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngtrans.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngwio.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngwrite.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngwtran.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngwutil.c
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# Begin Source File
+
+SOURCE=.\png.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\pngconf.h
+# End Source File
+# End Group
+# End Target
+# End Project

src/png/png.dsw

@@ -0,0 +1,29 @@
+Microsoft Developer Studio Workspace File, Format Version 6.00
+# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
+
+###############################################################################
+
+Project: "png"=.\PngVC.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+}}}
+
+###############################################################################
+
+Global:
+
+Package=<5>
+{{{
+}}}
+
+Package=<3>
+{{{
+}}}
+
+###############################################################################
+

src/png/pngconf.h

@@ -0,0 +1,705 @@
+
+/* pngconf.h - machine configurable file for libpng
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ */
+
+/* Any machine specific code is near the front of this file, so if you
+ * are configuring libpng for a machine, you may want to read the section
+ * starting here down to where it starts to typedef png_color, png_text,
+ * and png_info.
+ */
+
+#ifndef PNGCONF_H
+#define PNGCONF_H
+
+
+/* This is the size of the compression buffer, and thus the size of
+ * an IDAT chunk.  Make this whatever size you feel is best for your
+ * machine.  One of these will be allocated per png_struct.  When this
+ * is full, it writes the data to the disk, and does some other
+ * calculations.  Making this an extremely small size will slow
+ * the library down, but you may want to experiment to determine
+ * where it becomes significant, if you are concerned with memory
+ * usage.  Note that zlib allocates at least 32Kb also.  For readers,
+ * this describes the size of the buffer available to read the data in.
+ * Unless this gets smaller than the size of a row (compressed),
+ * it should not make much difference how big this is.
+ */
+
+#ifndef PNG_ZBUF_SIZE
+#define PNG_ZBUF_SIZE 8192
+#endif
+
+/* If you are running on a machine where you cannot allocate more
+ * than 64K of memory at once, uncomment this.  While libpng will not
+ * normally need that much memory in a chunk (unless you load up a very
+ * large file), zlib needs to know how big of a chunk it can use, and
+ * libpng thus makes sure to check any memory allocation to verify it
+ * will fit into memory.
+#define PNG_MAX_MALLOC_64K
+ */
+#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
+#define PNG_MAX_MALLOC_64K
+#endif
+
+/* This protects us against compilers that run on a windowing system
+ * and thus don't have or would rather us not use the stdio types:
+ * stdin, stdout, and stderr.  The only one currently used is stderr
+ * in png_error() and png_warning().  #defining PNG_NO_CONSOLE_IO will
+ * prevent these from being compiled and used. #defining PNG_NO_STDIO
+ * will also prevent these, plus will prevent the entire set of stdio
+ * macros and functions (FILE *, printf, etc.) from being compiled and used,
+ * unless PNG_DEBUG has been #defined.
+ *
+ * #define PNG_NO_CONSOLE_IO
+ * #define PNG_NO_STDIO
+ */
+
+#ifdef PNG_DEBUG
+#  if (PNG_DEBUG > 0)
+#    include <stdio.h>
+#  endif
+#else
+#  ifdef PNG_NO_STDIO
+#    ifndef PNG_NO_CONSOLE_IO
+#      define PNG_NO_CONSOLE_IO
+#    endif
+#  else
+#    include <stdio.h>
+#  endif
+#endif
+
+/* This macro protects us against machines that don't have function
+ * prototypes (ie K&R style headers).  If your compiler does not handle
+ * function prototypes, define this macro and use the included ansi2knr.
+ * I've always been able to use _NO_PROTO as the indicator, but you may
+ * need to drag the empty declaration out in front of here, or change the
+ * ifdef to suit your own needs.
+ */
+#ifndef PNGARG
+
+#ifdef OF /* zlib prototype munger */
+#define PNGARG(arglist) OF(arglist)
+#else
+
+#ifdef _NO_PROTO
+#define PNGARG(arglist) ()
+#else
+#define PNGARG(arglist) arglist
+#endif /* _NO_PROTO */
+
+#endif /* OF */
+
+#endif /* PNGARG */
+
+/* Try to determine if we are compiling on a Mac.  Note that testing for
+ * just __MWERKS__ is not good enough, because the Codewarrior is now used
+ * on non-Mac platforms.
+ */
+#ifndef MACOS
+#if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
+    defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
+#define MACOS
+#endif
+#endif
+
+/* enough people need this for various reasons to include it here */
+#if !defined(MACOS) && !defined(RISCOS)
+#include <sys/types.h>
+#endif
+
+/* This is an attempt to force a single setjmp behaviour on Linux.  If
+ * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
+ */
+#ifdef __linux__
+#ifdef _BSD_SOURCE
+#define _PNG_SAVE_BSD_SOURCE
+#undef _BSD_SOURCE
+#endif
+#ifdef _SETJMP_H
+__png.h__ already includes setjmp.h
+__dont__ include it again
+#endif
+#endif /* __linux__ */
+
+/* include setjmp.h for error handling */
+#include <setjmp.h>
+
+#ifdef __linux__
+#ifdef _PNG_SAVE_BSD_SOURCE
+#define _BSD_SOURCE
+#undef _PNG_SAVE_BSD_SOURCE
+#endif
+#endif /* __linux__ */
+
+#ifdef BSD
+#include <strings.h>
+#else
+#include <string.h>
+#endif
+
+/* Other defines for things like memory and the like can go here.  */
+#ifdef PNG_INTERNAL
+#include <stdlib.h>
+
+/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
+ * aren't usually used outside the library (as far as I know), so it is
+ * debatable if they should be exported at all.  In the future, when it is
+ * possible to have run-time registry of chunk-handling functions, some of
+ * these will be made available again.
+#define PNG_EXTERN extern
+ */
+#define PNG_EXTERN
+
+/* Other defines specific to compilers can go here.  Try to keep
+ * them inside an appropriate ifdef/endif pair for portability.
+ */
+
+#if defined(MACOS)
+/* We need to check that <math.h> hasn't already been included earlier
+ * as it seems it doesn't agree with <fp.h>, yet we should really use
+ * <fp.h> if possible.
+ */
+#if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
+#include <fp.h>
+#endif
+#else
+#include <math.h>
+#endif
+
+/* Codewarrior on NT has linking problems without this. */
+#if defined(__MWERKS__) && defined(WIN32)
+#define PNG_ALWAYS_EXTERN
+#endif
+
+/* For some reason, Borland C++ defines memcmp, etc. in mem.h, not
+ * stdlib.h like it should (I think).  Or perhaps this is a C++
+ * "feature"?
+ */
+#ifdef __TURBOC__
+#include <mem.h>
+#include "alloc.h"
+#endif
+
+#ifdef _MSC_VER
+#include <malloc.h>
+#endif
+
+/* This controls how fine the dithering gets.  As this allocates
+ * a largish chunk of memory (32K), those who are not as concerned
+ * with dithering quality can decrease some or all of these.
+ */
+#ifndef PNG_DITHER_RED_BITS
+#define PNG_DITHER_RED_BITS 5
+#endif
+#ifndef PNG_DITHER_GREEN_BITS
+#define PNG_DITHER_GREEN_BITS 5
+#endif
+#ifndef PNG_DITHER_BLUE_BITS
+#define PNG_DITHER_BLUE_BITS 5
+#endif
+
+/* This controls how fine the gamma correction becomes when you
+ * are only interested in 8 bits anyway.  Increasing this value
+ * results in more memory being used, and more pow() functions
+ * being called to fill in the gamma tables.  Don't set this value
+ * less then 8, and even that may not work (I haven't tested it).
+ */
+
+#ifndef PNG_MAX_GAMMA_8
+#define PNG_MAX_GAMMA_8 11
+#endif
+
+/* This controls how much a difference in gamma we can tolerate before
+ * we actually start doing gamma conversion.
+ */
+#ifndef PNG_GAMMA_THRESHOLD
+#define PNG_GAMMA_THRESHOLD 0.05
+#endif
+
+#endif /* PNG_INTERNAL */
+
+/* The following uses const char * instead of char * for error
+ * and warning message functions, so some compilers won't complain.
+ * If you do not want to use const, define PNG_NO_CONST here.
+ */
+
+#ifndef PNG_NO_CONST
+#  define PNG_CONST const
+#else
+#  define PNG_CONST
+#endif
+
+/* The following defines give you the ability to remove code from the
+ * library that you will not be using.  I wish I could figure out how to
+ * automate this, but I can't do that without making it seriously hard
+ * on the users.  So if you are not using an ability, change the #define
+ * to and #undef, and that part of the library will not be compiled.  If
+ * your linker can't find a function, you may want to make sure the
+ * ability is defined here.  Some of these depend upon some others being
+ * defined.  I haven't figured out all the interactions here, so you may
+ * have to experiment awhile to get everything to compile.  If you are
+ * creating or using a shared library, you probably shouldn't touch this,
+ * as it will affect the size of the structures, and this will cause bad
+ * things to happen if the library and/or application ever change.
+ */
+
+/* Any transformations you will not be using can be undef'ed here */
+
+/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
+   to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
+   on the compile line, then pick and choose which ones to define without
+   having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
+   if you only want to have a png-compliant reader/writer but don't need
+   any of the extra transformations.  This saves about 80 kbytes in a
+   typical installation of the library. (PNG_NO_* form added in version
+   1.0.1c, for consistency)
+ */
+
+
+#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
+    !defined(PNG_NO_READ_TRANSFORMS)
+#define PNG_READ_TRANSFORMS_SUPPORTED
+#endif
+#if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
+    !defined(PNG_NO_WRITE_TRANSFORMS)
+#define PNG_WRITE_TRANSFORMS_SUPPORTED
+#endif
+
+#ifdef PNG_READ_TRANSFORMS_SUPPORTED
+#ifndef PNG_NO_READ_EXPAND
+#define PNG_READ_EXPAND_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_SHIFT
+#define PNG_READ_SHIFT_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_PACK
+#define PNG_READ_PACK_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_BGR
+#define PNG_READ_BGR_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_SWAP
+#define PNG_READ_SWAP_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_PACKSWAP
+#define PNG_READ_PACKSWAP_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_INVERT
+#define PNG_READ_INVERT_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_DITHER
+#define PNG_READ_DITHER_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_BACKGROUND
+#define PNG_READ_BACKGROUND_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_16_TO_8
+#define PNG_READ_16_TO_8_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_FILLER
+#define PNG_READ_FILLER_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_GAMMA
+#define PNG_READ_GAMMA_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_GRAY_TO_RGB
+#define PNG_READ_GRAY_TO_RGB_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_SWAP_ALPHA
+#define PNG_READ_SWAP_ALPHA_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_INVERT_ALPHA
+#define PNG_READ_INVERT_ALPHA_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_STRIP_ALPHA
+#define PNG_READ_STRIP_ALPHA_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_USER_TRANSFORM
+#define PNG_READ_USER_TRANSFORM_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_RGB_TO_GRAY
+#define PNG_READ_RGB_TO_GRAY_SUPPORTED
+#endif
+#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
+
+#if !defined(PNG_NO_PROGRESSIVE_READ) && \
+ !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive   */
+#define PNG_PROGRESSIVE_READ_SUPPORTED       /* reading.  This is not talking */
+#endif                               /* about interlacing capability!  You'll */
+              /* still have interlacing unless you change the following line: */
+#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */
+
+#ifndef PNG_NO_READ_COMPOSITED_NODIV
+#define PNG_READ_COMPOSITE_NODIV_SUPPORTED    /* well tested on Intel and SGI */
+#endif
+
+#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
+#ifndef PNG_NO_WRITE_SHIFT
+#define PNG_WRITE_SHIFT_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_PACK
+#define PNG_WRITE_PACK_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_BGR
+#define PNG_WRITE_BGR_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_SWAP
+#define PNG_WRITE_SWAP_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_PACKSWAP
+#define PNG_WRITE_PACKSWAP_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_INVERT
+#define PNG_WRITE_INVERT_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_FILLER
+#define PNG_WRITE_FILLER_SUPPORTED  /* This is the same as WRITE_STRIP_ALPHA */
+#endif
+#ifndef PNG_NO_WRITE_SWAP_ALPHA
+#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_INVERT_ALPHA
+#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_USER_TRANSFORM
+#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
+#endif
+#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
+
+#define PNG_WRITE_INTERLACING_SUPPORTED  /* not required for PNG-compliant
+                                            encoders, but can cause trouble
+                                            if left undefined */
+
+#ifndef PNG_NO_WRITE_WEIGHTED_FILTER
+#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
+#endif
+
+#ifndef PNG_NO_WRITE_FLUSH
+#define PNG_WRITE_FLUSH_SUPPORTED
+#endif
+
+#ifndef PNG_NO_STDIO
+#define PNG_TIME_RFC1123_SUPPORTED
+#endif
+
+/* This adds extra functions in pngget.c for accessing data from the
+ * info pointer (added in version 0.99)
+ * png_get_image_width()
+ * png_get_image_height()
+ * png_get_bit_depth()
+ * png_get_color_type()
+ * png_get_compression_type()
+ * png_get_filter_type()
+ * png_get_interlace_type()
+ * png_get_pixel_aspect_ratio()
+ * png_get_pixels_per_meter()
+ * png_get_x_offset_pixels()
+ * png_get_y_offset_pixels()
+ * png_get_x_offset_microns()
+ * png_get_y_offset_microns()
+ */
+#ifndef PNG_NO_EASY_ACCESS
+#define PNG_EASY_ACCESS_SUPPORTED
+#endif
+
+/* These are currently experimental features, define them if you want */
+
+/* very little testing */
+/*
+#define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
+#define PNG_USER_MEM_SUPPORTED
+*/
+
+/* This is only for PowerPC big-endian and 680x0 systems */
+/* some testing */
+/*
+#define PNG_READ_BIG_ENDIAN_SUPPORTED
+*/
+
+/* These functions are turned off by default, as they will be phased out. */
+/*
+#define  PNG_USELESS_TESTS_SUPPORTED
+#define  PNG_CORRECT_PALETTE_SUPPORTED
+*/
+
+/* Any chunks you are not interested in, you can undef here.  The
+ * ones that allocate memory may be expecially important (hIST,
+ * tEXt, zTXt, tRNS, pCAL).  Others will just save time and make png_info
+ * a bit smaller.
+ */
+
+#if !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
+    !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
+#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
+#endif
+#if !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
+    !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
+#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
+#endif
+
+#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
+#ifndef PNG_NO_READ_bKGD
+#define PNG_READ_bKGD_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_cHRM
+#define PNG_READ_cHRM_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_gAMA
+#define PNG_READ_gAMA_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_hIST
+#define PNG_READ_hIST_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_oFFs
+#define PNG_READ_oFFs_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_pCAL
+#define PNG_READ_pCAL_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_pHYs
+#define PNG_READ_pHYs_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_sBIT
+#define PNG_READ_sBIT_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_sRGB
+#define PNG_READ_sRGB_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_tEXt
+#define PNG_READ_tEXt_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_tIME
+#define PNG_READ_tIME_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_tRNS
+#define PNG_READ_tRNS_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_zTXt
+#define PNG_READ_zTXt_SUPPORTED
+#endif
+#ifndef PNG_NO_READ_OPT_PLTE
+#define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the optional */
+#endif                              /* PLTE chunk in RGB and RGBA images */
+#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
+
+#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
+#ifndef PNG_NO_WRITE_bKGD
+#define PNG_WRITE_bKGD_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_cHRM
+#define PNG_WRITE_cHRM_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_gAMA
+#define PNG_WRITE_gAMA_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_hIST
+#define PNG_WRITE_hIST_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_oFFs
+#define PNG_WRITE_oFFs_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_pCAL
+#define PNG_WRITE_pCAL_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_pHYs
+#define PNG_WRITE_pHYs_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_sBIT
+#define PNG_WRITE_sBIT_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_sRGB
+#define PNG_WRITE_sRGB_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_tEXt
+#define PNG_WRITE_tEXt_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_tIME
+#define PNG_WRITE_tIME_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_tRNS
+#define PNG_WRITE_tRNS_SUPPORTED
+#endif
+#ifndef PNG_NO_WRITE_zTXt
+#define PNG_WRITE_zTXt_SUPPORTED
+#endif
+#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
+
+/* need the time information for reading tIME chunks */
+#if defined(PNG_READ_tIME_SUPPORTED) || defined(PNG_WRITE_tIME_SUPPORTED)
+#include <time.h>
+#endif
+
+/* Some typedefs to get us started.  These should be safe on most of the
+ * common platforms.  The typedefs should be at least as large as the
+ * numbers suggest (a png_uint_32 must be at least 32 bits long), but they
+ * don't have to be exactly that size.  Some compilers dislike passing
+ * unsigned shorts as function parameters, so you may be better off using
+ * unsigned int for png_uint_16.  Likewise, for 64-bit systems, you may
+ * want to have unsigned int for png_uint_32 instead of unsigned long.
+ */
+
+typedef unsigned long png_uint_32;
+typedef long png_int_32;
+typedef unsigned short png_uint_16;
+typedef short png_int_16;
+typedef unsigned char png_byte;
+
+/* This is usually size_t.  It is typedef'ed just in case you need it to
+   change (I'm not sure if you will or not, so I thought I'd be safe) */
+typedef size_t png_size_t;
+
+/* The following is needed for medium model support.  It cannot be in the
+ * PNG_INTERNAL section.  Needs modification for other compilers besides
+ * MSC.  Model independent support declares all arrays and pointers to be
+ * large using the far keyword.  The zlib version used must also support
+ * model independent data.  As of version zlib 1.0.4, the necessary changes
+ * have been made in zlib.  The USE_FAR_KEYWORD define triggers other
+ * changes that are needed. (Tim Wegner)
+ */
+
+/* Separate compiler dependencies (problem here is that zlib.h always
+   defines FAR. (SJT) */
+#ifdef __BORLANDC__
+#if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
+#define LDATA 1
+#else
+#define LDATA 0
+#endif
+
+#if !defined(__WIN32__) && !defined(__FLAT__)
+#define PNG_MAX_MALLOC_64K
+#if (LDATA != 1)
+#ifndef FAR
+#define FAR __far
+#endif
+#define USE_FAR_KEYWORD
+#endif   /* LDATA != 1 */
+
+/* Possibly useful for moving data out of default segment.
+ * Uncomment it if you want. Could also define FARDATA as
+ * const if your compiler supports it. (SJT)
+#  define FARDATA FAR
+ */
+#endif  /* __WIN32__, __FLAT__ */
+
+#endif   /* __BORLANDC__ */
+
+
+/* Suggest testing for specific compiler first before testing for
+ * FAR.  The Watcom compiler defines both __MEDIUM__ and M_I86MM,
+ * making reliance oncertain keywords suspect. (SJT)
+ */
+
+/* MSC Medium model */
+#if defined(FAR)
+#  if defined(M_I86MM)
+#     define USE_FAR_KEYWORD
+#     define FARDATA FAR
+#     include <dos.h>
+#  endif
+#endif
+
+/* SJT: default case */
+#ifndef FAR
+#   define FAR
+#endif
+
+/* At this point FAR is always defined */
+#ifndef FARDATA
+#define FARDATA
+#endif
+
+/* Add typedefs for pointers */
+typedef void            FAR * png_voidp;
+typedef png_byte        FAR * png_bytep;
+typedef png_uint_32     FAR * png_uint_32p;
+typedef png_int_32      FAR * png_int_32p;
+typedef png_uint_16     FAR * png_uint_16p;
+typedef png_int_16      FAR * png_int_16p;
+typedef PNG_CONST char  FAR * png_const_charp;
+typedef char            FAR * png_charp;
+typedef double          FAR * png_doublep;
+
+/* Pointers to pointers; i.e. arrays */
+typedef png_byte        FAR * FAR * png_bytepp;
+typedef png_uint_32     FAR * FAR * png_uint_32pp;
+typedef png_int_32      FAR * FAR * png_int_32pp;
+typedef png_uint_16     FAR * FAR * png_uint_16pp;
+typedef png_int_16      FAR * FAR * png_int_16pp;
+typedef PNG_CONST char  FAR * FAR * png_const_charpp;
+typedef char            FAR * FAR * png_charpp;
+typedef double          FAR * FAR * png_doublepp;
+
+/* Pointers to pointers to pointers; i.e. pointer to array */
+typedef char            FAR * FAR * FAR * png_charppp;
+
+/* libpng typedefs for types in zlib. If zlib changes
+ * or another compression library is used, then change these.
+ * Eliminates need to change all the source files.
+ */
+typedef charf *         png_zcharp;
+typedef charf * FAR *   png_zcharpp;
+typedef z_stream FAR *  png_zstreamp;
+
+/* allow for compilation as dll under MS Windows */
+#ifdef __WIN32DLL__
+#define PNG_EXPORT(type,symbol) __declspec(dllexport) type symbol
+#endif
+
+/* allow for compilation as dll with BORLAND C++ 5.0 */
+#if defined(__BORLANDC__) && defined(_Windows) && defined(__DLL__)
+#   define PNG_EXPORT(type,symbol) type _export symbol
+#endif
+
+/* allow for compilation as shared lib under BeOS */
+#ifdef __BEOSDLL__
+#define PNG_EXPORT(type,symbol) __declspec(export) type symbol
+#endif
+
+#ifndef PNG_EXPORT
+#define PNG_EXPORT(type,symbol) type symbol
+#endif
+
+
+/* User may want to use these so not in PNG_INTERNAL. Any library functions
+ * that are passed far data must be model independent.
+ */
+
+#if defined(USE_FAR_KEYWORD)  /* memory model independent fns */
+/* use this to make far-to-near assignments */
+#   define CHECK   1
+#   define NOCHECK 0
+#   define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
+#   define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
+#   define png_strcpy _fstrcpy
+#   define png_strlen _fstrlen
+#   define png_memcmp _fmemcmp      /* SJT: added */
+#   define png_memcpy _fmemcpy
+#   define png_memset _fmemset
+#else /* use the usual functions */
+#   define CVT_PTR(ptr)         (ptr)
+#   define CVT_PTR_NOCHECK(ptr) (ptr)
+#   define png_strcpy strcpy
+#   define png_strlen strlen
+#   define png_memcmp memcmp     /* SJT: added */
+#   define png_memcpy memcpy
+#   define png_memset memset
+#endif
+/* End of memory model independent support */
+
+/* Just a double check that someone hasn't tried to define something
+ * contradictory.
+ */
+#if (PNG_ZBUF_SIZE > 65536) && defined(PNG_MAX_MALLOC_64K)
+#undef PNG_ZBUF_SIZE
+#define PNG_ZBUF_SIZE 65536
+#endif
+
+#endif /* PNGCONF_H */
+

src/png/pngerror.c

@@ -0,0 +1,172 @@
+
+/* pngerror.c - stub functions for i/o and memory allocation
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ *
+ * This file provides a location for all error handling.  Users who
+ * need special error handling are expected to write replacement functions
+ * and use png_set_error_fn() to use those functions.  See the instructions
+ * at each function.
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+static void png_default_error PNGARG((png_structp png_ptr,
+                                      png_const_charp message));
+static void png_default_warning PNGARG((png_structp png_ptr,
+                                        png_const_charp message));
+
+/* This function is called whenever there is a fatal error.  This function
+ * should not be changed.  If there is a need to handle errors differently,
+ * you should supply a replacement error function and use png_set_error_fn()
+ * to replace the error function at run-time.
+ */
+void
+png_error(png_structp png_ptr, png_const_charp message)
+{
+   if (png_ptr->error_fn != NULL)
+      (*(png_ptr->error_fn))(png_ptr, message);
+
+   /* if the following returns or doesn't exist, use the default function,
+      which will not return */
+   png_default_error(png_ptr, message);
+}
+
+/* This function is called whenever there is a non-fatal error.  This function
+ * should not be changed.  If there is a need to handle warnings differently,
+ * you should supply a replacement warning function and use
+ * png_set_error_fn() to replace the warning function at run-time.
+ */
+void
+png_warning(png_structp png_ptr, png_const_charp message)
+{
+   if (png_ptr->warning_fn != NULL)
+      (*(png_ptr->warning_fn))(png_ptr, message);
+   else
+      png_default_warning(png_ptr, message);
+}
+
+/* These utilities are used internally to build an error message that relates
+ * to the current chunk.  The chunk name comes from png_ptr->chunk_name,
+ * this is used to prefix the message.  The message is limited in length
+ * to 63 bytes, the name characters are output as hex digits wrapped in []
+ * if the character is invalid.
+ */
+#define isnonalpha(c) ((c) < 41 || (c) > 122 || ((c) > 90 && (c) < 97))
+static PNG_CONST char png_digit[16] = {
+   '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
+};
+
+static void
+png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp message)
+{
+   int iout = 0, iin = 0;
+
+   while (iin < 4) {
+      int c = png_ptr->chunk_name[iin++];
+      if (isnonalpha(c)) {
+         buffer[iout++] = '[';
+         buffer[iout++] = png_digit[(c & 0xf0) >> 4];
+         buffer[iout++] = png_digit[c & 0xf];
+         buffer[iout++] = ']';
+      } else {
+         buffer[iout++] = c;
+      }
+   }
+
+   if (message == NULL)
+      buffer[iout] = 0;
+   else {
+      buffer[iout++] = ':';
+      buffer[iout++] = ' ';
+      png_memcpy(buffer+iout, message, 64);
+      buffer[iout+63] = 0;
+   }
+}
+
+void
+png_chunk_error(png_structp png_ptr, png_const_charp message)
+{
+   char msg[16+64];
+   png_format_buffer(png_ptr, msg, message);
+   png_error(png_ptr, msg);
+}
+
+void
+png_chunk_warning(png_structp png_ptr, png_const_charp message)
+{
+   char msg[16+64];
+   png_format_buffer(png_ptr, msg, message);
+   png_warning(png_ptr, msg);
+}
+
+/* This is the default error handling function.  Note that replacements for
+ * this function MUST NOT RETURN, or the program will likely crash.  This
+ * function is used by default, or if the program supplies NULL for the
+ * error function pointer in png_set_error_fn().
+ */
+static void
+png_default_error(png_structp png_ptr, png_const_charp message)
+{
+#ifndef PNG_NO_CONSOLE_IO
+   fprintf(stderr, "libpng error: %s\n", message);
+#endif
+
+#ifdef USE_FAR_KEYWORD
+   {
+      jmp_buf jmpbuf;
+      png_memcpy(jmpbuf,png_ptr->jmpbuf,sizeof(jmp_buf));
+      longjmp(jmpbuf, 1);
+   }
+#else
+   longjmp(png_ptr->jmpbuf, 1);
+#endif
+}
+
+/* This function is called when there is a warning, but the library thinks
+ * it can continue anyway.  Replacement functions don't have to do anything
+ * here if you don't want them to.  In the default configuration, png_ptr is
+ * not used, but it is passed in case it may be useful.
+ */
+static void
+png_default_warning(png_structp png_ptr, png_const_charp message)
+{
+#ifndef PNG_NO_CONSOLE_IO
+   fprintf(stderr, "libpng warning: %s\n", message);
+#endif
+   if (png_ptr == NULL)
+      return;
+}
+
+/* This function is called when the application wants to use another method
+ * of handling errors and warnings.  Note that the error function MUST NOT
+ * return to the calling routine or serious problems will occur.  The return
+ * method used in the default routine calls longjmp(png_ptr->jmpbuf, 1)
+ */
+void
+png_set_error_fn(png_structp png_ptr, png_voidp error_ptr,
+   png_error_ptr error_fn, png_error_ptr warning_fn)
+{
+   png_ptr->error_ptr = error_ptr;
+   png_ptr->error_fn = error_fn;
+   png_ptr->warning_fn = warning_fn;
+}
+
+
+/* This function returns a pointer to the error_ptr associated with the user
+ * functions.  The application should free any memory associated with this
+ * pointer before png_write_destroy and png_read_destroy are called.
+ */
+png_voidp
+png_get_error_ptr(png_structp png_ptr)
+{
+   return ((png_voidp)png_ptr->error_ptr);
+}
+
+
+

src/png/pngget.c

@@ -0,0 +1,650 @@
+
+/* pngget.c - retrieval of values from info struct
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+png_uint_32
+png_get_valid(png_structp png_ptr, png_infop info_ptr, png_uint_32 flag)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+      return(info_ptr->valid & flag);
+   else
+      return(0);
+}
+
+png_uint_32
+png_get_rowbytes(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+      return(info_ptr->rowbytes);
+   else
+      return(0);
+}
+
+#ifdef PNG_EASY_ACCESS_SUPPORTED
+/* easy access to info, added in libpng-0.99 */
+png_uint_32
+png_get_image_width(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+   {
+      return info_ptr->width;
+   }
+   return (0);
+}
+
+png_uint_32
+png_get_image_height(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+   {
+      return info_ptr->height;
+   }
+   return (0);
+}
+
+png_byte
+png_get_bit_depth(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+   {
+      return info_ptr->bit_depth;
+   }
+   return (0);
+}
+
+png_byte
+png_get_color_type(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+   {
+      return info_ptr->color_type;
+   }
+   return (0);
+}
+
+png_byte
+png_get_filter_type(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+   {
+      return info_ptr->filter_type;
+   }
+   return (0);
+}
+
+png_byte
+png_get_interlace_type(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+   {
+      return info_ptr->interlace_type;
+   }
+   return (0);
+}
+
+png_byte
+png_get_compression_type(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+   {
+      return info_ptr->compression_type;
+   }
+   return (0);
+}
+
+png_uint_32
+png_get_x_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
+{
+#if defined(PNG_READ_pHYs_SUPPORTED) || defined(PNG_WRITE_pHYs_SUPPORTED)
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+   {
+      png_debug1(1, "in %s retrieval function\n", "png_get_x_pixels_per_meter");
+      if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
+          return (0);
+      else return (info_ptr->x_pixels_per_unit);
+   }
+   else
+#endif
+   return (0);
+}
+
+png_uint_32
+png_get_y_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
+{
+#if defined(PNG_READ_pHYs_SUPPORTED) || defined(PNG_WRITE_pHYs_SUPPORTED)
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+   {
+      png_debug1(1, "in %s retrieval function\n", "png_get_y_pixels_per_meter");
+      if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
+          return (0);
+      else return (info_ptr->y_pixels_per_unit);
+   }
+   else
+#endif
+   return (0);
+}
+
+png_uint_32
+png_get_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
+{
+#if defined(PNG_READ_pHYs_SUPPORTED) || defined(PNG_WRITE_pHYs_SUPPORTED)
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+   {
+      png_debug1(1, "in %s retrieval function\n", "png_get_pixels_per_meter");
+      if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER ||
+         info_ptr->x_pixels_per_unit != info_ptr->y_pixels_per_unit)
+          return (0);
+      else return (info_ptr->x_pixels_per_unit);
+   }
+   else
+#endif
+   return (0);
+}
+
+float
+png_get_pixel_aspect_ratio(png_structp png_ptr, png_infop info_ptr)
+   {
+#if defined(PNG_READ_pHYs_SUPPORTED) || defined(PNG_WRITE_pHYs_SUPPORTED)
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+   {
+      png_debug1(1, "in %s retrieval function\n", "png_get_aspect_ratio");
+      if (info_ptr->x_pixels_per_unit == 0)
+         return ((float)0.0);
+      else
+         return ((float)info_ptr->y_pixels_per_unit
+            /(float)info_ptr->x_pixels_per_unit);
+   }
+   else
+#endif
+      return ((float)0.0);
+}
+
+png_uint_32
+png_get_x_offset_microns(png_structp png_ptr, png_infop info_ptr)
+{
+#if defined(PNG_READ_oFFs_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED)
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+   {
+      png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns");
+      if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER)
+          return (0);
+      else return (info_ptr->x_offset);
+   }
+   else
+#endif
+   return (0);
+}
+
+png_uint_32
+png_get_y_offset_microns(png_structp png_ptr, png_infop info_ptr)
+{
+#if defined(PNG_READ_oFFs_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED)
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+   {
+      png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns");
+      if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER)
+          return (0);
+      else return (info_ptr->y_offset);
+   }
+   else
+#endif
+   return (0);
+}
+
+png_uint_32
+png_get_x_offset_pixels(png_structp png_ptr, png_infop info_ptr)
+{
+#if defined(PNG_READ_oFFs_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED)
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+   {
+      png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns");
+      if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL)
+          return (0);
+      else return (info_ptr->x_offset);
+   }
+   else
+#endif
+   return (0);
+}
+
+png_uint_32
+png_get_y_offset_pixels(png_structp png_ptr, png_infop info_ptr)
+{
+#if defined(PNG_READ_oFFs_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED)
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+   {
+      png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns");
+      if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL)
+          return (0);
+      else return (info_ptr->y_offset);
+   }
+   else
+#endif
+   return (0);
+}
+
+#ifdef PNG_INCH_CONVERSIONS
+png_uint_32
+png_get_pixels_per_inch(png_structp png_ptr, png_infop info_ptr)
+{
+   return ((png_uint_32)((float)png_get_pixels_per_meter(png_ptr, info_ptr)
+     *.03937 +.5)
+}
+
+png_uint_32
+png_get_x_pixels_per_inch(png_structp png_ptr, png_infop info_ptr)
+{
+   return ((png_uint_32)((float)png_get_x_pixels_per_meter(png_ptr, info_ptr)
+     *.03937 +.5)
+}
+
+png_uint_32
+png_get_y_pixels_per_inch(png_structp png_ptr, png_infop info_ptr)
+{
+   return ((png_uint_32)((float)png_get_y_pixels_per_meter(png_ptr, info_ptr)
+     *.03937 +.5)
+}
+
+float
+png_get_x_offset_inches(png_structp png_ptr, png_infop info_ptr)
+{
+   return ((float)png_get_x_offset_microns(png_ptr, info_ptr)
+     *.03937/1000000. +.5)
+}
+
+float
+png_get_y_offset_inches(png_structp png_ptr, png_infop info_ptr)
+{
+   return ((float)png_get_y_offset_microns(png_ptr, info_ptr)
+     *.03937/1000000. +.5)
+}
+
+#if defined(PNG_READ_pHYs_SUPPORTED)
+png_uint_32
+png_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
+{
+   png_uint_32 retval = 0;
+
+   if (png_ptr != NULL && info_ptr != NULL && info_ptr->valid & PNG_INFO_pHYs)
+   {
+      png_debug1(1, "in %s retrieval function\n", "pHYs");
+      if (res_x != NULL)
+      {
+         *res_x = info_ptr->x_pixels_per_unit;
+         retval |= PNG_INFO_pHYs;
+      }
+      if (res_y != NULL)
+      {
+         *res_y = info_ptr->y_pixels_per_unit;
+         retval |= PNG_INFO_pHYs;
+      }
+      if (unit_type != NULL)
+      {
+         *unit_type = (int)info_ptr->phys_unit_type;
+         retval |= PNG_INFO_pHYs;
+         if(unit_type == 1)
+         {
+            if (res_x != NULL) *res_x = (png_uint_32)(*res_x * 39.37 + .50);
+            if (res_y != NULL) *res_y = (png_uint_32)(*res_y * 39.37 + .50);
+         }
+      }
+   }
+   return (retval);
+}
+#endif /* PNG_READ_pHYs_SUPPORTED */
+#endif  /* PNG_INCH_CONVERSIONS */
+
+/* png_get_channels really belongs in here, too, but it's been around longer */
+
+#endif  /* PNG_EASY_ACCESS_SUPPORTED */
+
+png_byte
+png_get_channels(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+      return(info_ptr->channels);
+   else
+      return (0);
+}
+
+png_bytep
+png_get_signature(png_structp png_ptr, png_infop info_ptr)
+{
+   if (png_ptr != NULL && info_ptr != NULL)
+      return(info_ptr->signature);
+   else
+      return (NULL);
+}
+
+#if defined(PNG_READ_bKGD_SUPPORTED)
+png_uint_32
+png_get_bKGD(png_structp png_ptr, png_infop info_ptr,
+   png_color_16p *background)
+{
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD)
+      && background != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "bKGD");
+      *background = &(info_ptr->background);
+      return (PNG_INFO_bKGD);
+   }
+   return (0);
+}
+#endif
+
+#if defined(PNG_READ_cHRM_SUPPORTED)
+png_uint_32
+png_get_cHRM(png_structp png_ptr, png_infop info_ptr,
+   double *white_x, double *white_y, double *red_x, double *red_y,
+   double *green_x, double *green_y, double *blue_x, double *blue_y)
+{
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM))
+   {
+      png_debug1(1, "in %s retrieval function\n", "cHRM");
+      if (white_x != NULL)
+         *white_x = (double)info_ptr->x_white;
+      if (white_y != NULL)
+         *white_y = (double)info_ptr->y_white;
+      if (red_x != NULL)
+         *red_x = (double)info_ptr->x_red;
+      if (red_y != NULL)
+         *red_y = (double)info_ptr->y_red;
+      if (green_x != NULL)
+         *green_x = (double)info_ptr->x_green;
+      if (green_y != NULL)
+         *green_y = (double)info_ptr->y_green;
+      if (blue_x != NULL)
+         *blue_x = (double)info_ptr->x_blue;
+      if (blue_y != NULL)
+         *blue_y = (double)info_ptr->y_blue;
+      return (PNG_INFO_cHRM);
+   }
+   return (0);
+}
+#endif
+
+#if defined(PNG_READ_gAMA_SUPPORTED)
+png_uint_32
+png_get_gAMA(png_structp png_ptr, png_infop info_ptr, double *file_gamma)
+{
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA)
+      && file_gamma != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "gAMA");
+      *file_gamma = (double)info_ptr->gamma;
+      return (PNG_INFO_gAMA);
+   }
+   return (0);
+}
+#endif
+
+#if defined(PNG_READ_sRGB_SUPPORTED)
+png_uint_32
+png_get_sRGB(png_structp png_ptr, png_infop info_ptr, int *file_srgb_intent)
+{
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB)
+      && file_srgb_intent != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "sRGB");
+      *file_srgb_intent = (int)info_ptr->srgb_intent;
+      return (PNG_INFO_sRGB);
+   }
+   return (0);
+}
+#endif
+
+#if defined(PNG_READ_hIST_SUPPORTED)
+png_uint_32
+png_get_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist)
+{
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST)
+      && hist != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "hIST");
+      *hist = info_ptr->hist;
+      return (PNG_INFO_hIST);
+   }
+   return (0);
+}
+#endif
+
+png_uint_32
+png_get_IHDR(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 *width, png_uint_32 *height, int *bit_depth,
+   int *color_type, int *interlace_type, int *compression_type,
+   int *filter_type)
+
+{
+   if (png_ptr != NULL && info_ptr != NULL && width != NULL && height != NULL &&
+      bit_depth != NULL && color_type != NULL)
+   {
+      int pixel_depth, channels;
+      png_uint_32 rowbytes_per_pixel;
+
+      png_debug1(1, "in %s retrieval function\n", "IHDR");
+      *width = info_ptr->width;
+      *height = info_ptr->height;
+      *bit_depth = info_ptr->bit_depth;
+      *color_type = info_ptr->color_type;
+      if (compression_type != NULL)
+         *compression_type = info_ptr->compression_type;
+      if (filter_type != NULL)
+         *filter_type = info_ptr->filter_type;
+      if (interlace_type != NULL)
+         *interlace_type = info_ptr->interlace_type;
+
+      /* check for potential overflow of rowbytes */
+      if (*color_type == PNG_COLOR_TYPE_PALETTE)
+         channels = 1;
+      else if (*color_type & PNG_COLOR_MASK_COLOR)
+         channels = 3;
+      else
+         channels = 1;
+      if (*color_type & PNG_COLOR_MASK_ALPHA)
+         channels++;
+      pixel_depth = *bit_depth * channels;
+      rowbytes_per_pixel = (pixel_depth + 7) >> 3;
+      if ((*width > (png_uint_32)2147483647L/rowbytes_per_pixel))
+      {
+         png_warning(png_ptr,
+            "Width too large for libpng to process image data.");
+      }
+      return (1);
+   }
+   return (0);
+}
+
+#if defined(PNG_READ_oFFs_SUPPORTED)
+png_uint_32
+png_get_oFFs(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 *offset_x, png_uint_32 *offset_y, int *unit_type)
+{
+   if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)
+      && offset_x != NULL && offset_y != NULL && unit_type != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "oFFs");
+      *offset_x = info_ptr->x_offset;
+      *offset_y = info_ptr->y_offset;
+      *unit_type = (int)info_ptr->offset_unit_type;
+      return (PNG_INFO_oFFs);
+   }
+   return (0);
+}
+#endif
+
+#if defined(PNG_READ_pCAL_SUPPORTED)
+png_uint_32
+png_get_pCAL(png_structp png_ptr, png_infop info_ptr,
+   png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams,
+   png_charp *units, png_charpp *params)
+{
+   if (png_ptr != NULL && info_ptr != NULL && info_ptr->valid & PNG_INFO_pCAL &&
+      purpose != NULL && X0 != NULL && X1 != NULL && type != NULL &&
+      nparams != NULL && units != NULL && params != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "pCAL");
+      *purpose = info_ptr->pcal_purpose;
+      *X0 = info_ptr->pcal_X0;
+      *X1 = info_ptr->pcal_X1;
+      *type = (int)info_ptr->pcal_type;
+      *nparams = (int)info_ptr->pcal_nparams;
+      *units = info_ptr->pcal_units;
+      *params = info_ptr->pcal_params;
+      return (PNG_INFO_pCAL);
+   }
+   return (0);
+}
+#endif
+
+#if defined(PNG_READ_pHYs_SUPPORTED)
+png_uint_32
+png_get_pHYs(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
+{
+   png_uint_32 retval = 0;
+
+   if (png_ptr != NULL && info_ptr != NULL && info_ptr->valid & PNG_INFO_pHYs)
+   {
+      png_debug1(1, "in %s retrieval function\n", "pHYs");
+      if (res_x != NULL)
+      {
+         *res_x = info_ptr->x_pixels_per_unit;
+         retval |= PNG_INFO_pHYs;
+      }
+      if (res_y != NULL)
+      {
+         *res_y = info_ptr->y_pixels_per_unit;
+         retval |= PNG_INFO_pHYs;
+      }
+      if (unit_type != NULL)
+      {
+         *unit_type = (int)info_ptr->phys_unit_type;
+         retval |= PNG_INFO_pHYs;
+      }
+   }
+   return (retval);
+}
+#endif
+
+png_uint_32
+png_get_PLTE(png_structp png_ptr, png_infop info_ptr, png_colorp *palette,
+   int *num_palette)
+{
+   if (png_ptr != NULL && info_ptr != NULL && info_ptr->valid & PNG_INFO_PLTE &&
+       palette != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "PLTE");
+      *palette = info_ptr->palette;
+      *num_palette = info_ptr->num_palette;
+      png_debug1(3, "num_palette = %d\n", *num_palette);
+      return (PNG_INFO_PLTE);
+   }
+   return (0);
+}
+
+#if defined(PNG_READ_sBIT_SUPPORTED)
+png_uint_32
+png_get_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit)
+{
+   if (png_ptr != NULL && info_ptr != NULL && info_ptr->valid & PNG_INFO_sBIT &&
+       sig_bit != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "sBIT");
+      *sig_bit = &(info_ptr->sig_bit);
+      return (PNG_INFO_sBIT);
+   }
+   return (0);
+}
+#endif
+
+#if defined(PNG_READ_tEXt_SUPPORTED) || defined(PNG_READ_zTXt_SUPPORTED)
+png_uint_32
+png_get_text(png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr,
+   int *num_text)
+{
+   if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0)
+   {
+      png_debug1(1, "in %s retrieval function\n",
+         (png_ptr->chunk_name[0] == '\0' ? "text"
+             : (png_const_charp)png_ptr->chunk_name));
+      if (text_ptr != NULL)
+         *text_ptr = info_ptr->text;
+      if (num_text != NULL)
+         *num_text = info_ptr->num_text;
+      return ((png_uint_32)info_ptr->num_text);
+   }
+   return(0);
+}
+#endif
+
+#if defined(PNG_READ_tIME_SUPPORTED)
+png_uint_32
+png_get_tIME(png_structp png_ptr, png_infop info_ptr, png_timep *mod_time)
+{
+   if (png_ptr != NULL && info_ptr != NULL && info_ptr->valid & PNG_INFO_tIME &&
+       mod_time != NULL)
+   {
+      png_debug1(1, "in %s retrieval function\n", "tIME");
+      *mod_time = &(info_ptr->mod_time);
+      return (PNG_INFO_tIME);
+   }
+   return (0);
+}
+#endif
+
+#if defined(PNG_READ_tRNS_SUPPORTED)
+png_uint_32
+png_get_tRNS(png_structp png_ptr, png_infop info_ptr,
+   png_bytep *trans, int *num_trans, png_color_16p *trans_values)
+{
+   png_uint_32 retval = 0;
+   if (png_ptr != NULL && info_ptr != NULL && info_ptr->valid & PNG_INFO_tRNS)
+   {
+      png_debug1(1, "in %s retrieval function\n", "tRNS");
+      if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
+      {
+          if (trans != NULL)
+          {
+             *trans = info_ptr->trans;
+             retval |= PNG_INFO_tRNS;
+          }
+          if (trans_values != NULL)
+             *trans_values = &(info_ptr->trans_values);
+      }
+      else /* if (info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) */
+      {
+          if (trans_values != NULL)
+          {
+             *trans_values = &(info_ptr->trans_values);
+             retval |= PNG_INFO_tRNS;
+          }
+          if(trans != NULL)
+             *trans = NULL;
+      }
+      if(num_trans != NULL)
+      {
+         *num_trans = info_ptr->num_trans;
+         retval |= PNG_INFO_tRNS;
+      }
+   }
+   return (retval);
+}
+#endif
+
+#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
+png_byte
+png_get_rgb_to_gray_status (png_structp png_ptr)
+{
+   return png_ptr->rgb_to_gray_status;
+}
+#endif

src/png/pngmem.c

@@ -0,0 +1,511 @@
+
+/* pngmem.c - stub functions for memory allocation
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ *
+ * This file provides a location for all memory allocation.  Users who
+ * need special memory handling are expected to supply replacement
+ * functions for png_malloc() and png_free(), and to use
+ * png_create_read_struct_2() and png_create_write_struct_2() to
+ * identify the replacement functions.
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+/* Borland DOS special memory handler */
+#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
+/* if you change this, be sure to change the one in png.h also */
+
+/* Allocate memory for a png_struct.  The malloc and memset can be replaced
+   by a single call to calloc() if this is thought to improve performance. */
+png_voidp
+png_create_struct(int type)
+{
+#ifdef PNG_USER_MEM_SUPPORTED
+   return (png_create_struct_2(type, NULL));
+}
+
+/* Alternate version of png_create_struct, for use with user-defined malloc. */
+png_voidp
+png_create_struct_2(int type, png_malloc_ptr malloc_fn)
+{
+#endif /* PNG_USER_MEM_SUPPORTED */
+   png_size_t size;
+   png_voidp struct_ptr;
+
+   if (type == PNG_STRUCT_INFO)
+     size = sizeof(png_info);
+   else if (type == PNG_STRUCT_PNG)
+     size = sizeof(png_struct);
+   else
+     return ((png_voidp)NULL);
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   if(malloc_fn != NULL)
+   {
+      if ((struct_ptr = (*(malloc_fn))(NULL, size)) != NULL)
+         png_memset(struct_ptr, 0, size);
+         return (struct_ptr);
+   }
+#endif /* PNG_USER_MEM_SUPPORTED */
+   if ((struct_ptr = (png_voidp)farmalloc(size)) != NULL)
+   {
+      png_memset(struct_ptr, 0, size);
+   }
+   return (struct_ptr);
+}
+
+
+/* Free memory allocated by a png_create_struct() call */
+void
+png_destroy_struct(png_voidp struct_ptr)
+{
+#ifdef PNG_USER_MEM_SUPPORTED
+   png_destroy_struct_2(struct_ptr, (png_free_ptr)NULL);
+}
+
+/* Free memory allocated by a png_create_struct() call */
+void
+png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn)
+{
+#endif
+   if (struct_ptr != NULL)
+   {
+#ifdef PNG_USER_MEM_SUPPORTED
+      if(free_fn != NULL)
+      {
+         png_struct dummy_struct;
+         png_structp png_ptr = &dummy_struct;
+         (*(free_fn))(png_ptr, struct_ptr);
+         struct_ptr = NULL;
+         return;
+      }
+#endif /* PNG_USER_MEM_SUPPORTED */
+      farfree (struct_ptr);
+      struct_ptr = NULL;
+   }
+}
+
+/* Allocate memory.  For reasonable files, size should never exceed
+ * 64K.  However, zlib may allocate more then 64K if you don't tell
+ * it not to.  See zconf.h and png.h for more information. zlib does
+ * need to allocate exactly 64K, so whatever you call here must
+ * have the ability to do that.
+ *
+ * Borland seems to have a problem in DOS mode for exactly 64K.
+ * It gives you a segment with an offset of 8 (perhaps to store its
+ * memory stuff).  zlib doesn't like this at all, so we have to
+ * detect and deal with it.  This code should not be needed in
+ * Windows or OS/2 modes, and only in 16 bit mode.  This code has
+ * been updated by Alexander Lehmann for version 0.89 to waste less
+ * memory.
+ *
+ * Note that we can't use png_size_t for the "size" declaration,
+ * since on some systems a png_size_t is a 16-bit quantity, and as a
+ * result, we would be truncating potentially larger memory requests
+ * (which should cause a fatal error) and introducing major problems.
+ */
+png_voidp
+png_malloc(png_structp png_ptr, png_uint_32 size)
+{
+#ifndef PNG_USER_MEM_SUPPORTED
+   png_voidp ret;
+#endif
+   if (png_ptr == NULL || size == 0)
+      return ((png_voidp)NULL);
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   if(png_ptr->malloc_fn != NULL)
+       return ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, size));
+   else
+       return png_malloc_default(png_ptr, size);
+}
+
+png_voidp
+png_malloc_default(png_structp png_ptr, png_uint_32 size)
+{
+   png_voidp ret;
+#endif /* PNG_USER_MEM_SUPPORTED */
+
+#ifdef PNG_MAX_MALLOC_64K
+   if (size > (png_uint_32)65536L)
+      png_error(png_ptr, "Cannot Allocate > 64K");
+#endif
+
+   if (size == (png_uint_32)65536L)
+   {
+      if (png_ptr->offset_table == NULL)
+      {
+         /* try to see if we need to do any of this fancy stuff */
+         ret = farmalloc(size);
+         if (ret == NULL || ((png_size_t)ret & 0xffff))
+         {
+            int num_blocks;
+            png_uint_32 total_size;
+            png_bytep table;
+            int i;
+            png_byte huge * hptr;
+
+            if (ret != NULL)
+            {
+               farfree(ret);
+               ret = NULL;
+            }
+
+            num_blocks = (int)(1 << (png_ptr->zlib_window_bits - 14));
+            if (num_blocks < 1)
+               num_blocks = 1;
+            if (png_ptr->zlib_mem_level >= 7)
+               num_blocks += (int)(1 << (png_ptr->zlib_mem_level - 7));
+            else
+               num_blocks++;
+
+            total_size = ((png_uint_32)65536L) * (png_uint_32)num_blocks+16;
+
+            table = farmalloc(total_size);
+
+            if (table == NULL)
+            {
+               png_error(png_ptr, "Out Of Memory."); /* Note "O" and "M" */
+            }
+
+            if ((png_size_t)table & 0xfff0)
+            {
+               png_error(png_ptr, "Farmalloc didn't return normalized pointer");
+            }
+
+            png_ptr->offset_table = table;
+            png_ptr->offset_table_ptr = farmalloc(num_blocks *
+               sizeof (png_bytep));
+
+            if (png_ptr->offset_table_ptr == NULL)
+            {
+               png_error(png_ptr, "Out Of memory.");
+            }
+
+            hptr = (png_byte huge *)table;
+            if ((png_size_t)hptr & 0xf)
+            {
+               hptr = (png_byte huge *)((long)(hptr) & 0xfffffff0L);
+               hptr += 16L;
+            }
+            for (i = 0; i < num_blocks; i++)
+            {
+               png_ptr->offset_table_ptr[i] = (png_bytep)hptr;
+               hptr += (png_uint_32)65536L;
+            }
+
+            png_ptr->offset_table_number = num_blocks;
+            png_ptr->offset_table_count = 0;
+            png_ptr->offset_table_count_free = 0;
+         }
+      }
+
+      if (png_ptr->offset_table_count >= png_ptr->offset_table_number)
+         png_error(png_ptr, "Out of Memory.");
+
+      ret = png_ptr->offset_table_ptr[png_ptr->offset_table_count++];
+   }
+   else
+      ret = farmalloc(size);
+
+   if (ret == NULL)
+   {
+      png_error(png_ptr, "Out of memory."); /* Note "o" and "m" */
+   }
+
+   return (ret);
+}
+
+/* free a pointer allocated by png_malloc().  In the default
+   configuration, png_ptr is not used, but is passed in case it
+   is needed.  If ptr is NULL, return without taking any action. */
+void
+png_free(png_structp png_ptr, png_voidp ptr)
+{
+   if (png_ptr == NULL || ptr == NULL)
+      return;
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   if (png_ptr->free_fn != NULL)
+   {
+      (*(png_ptr->free_fn))(png_ptr, ptr);
+      ptr = NULL;
+      return;
+   }
+   else png_free_default(png_ptr, ptr);
+}
+
+void
+png_free_default(png_structp png_ptr, png_voidp ptr)
+{
+#endif /* PNG_USER_MEM_SUPPORTED */
+
+   if (png_ptr->offset_table != NULL)
+   {
+      int i;
+
+      for (i = 0; i < png_ptr->offset_table_count; i++)
+      {
+         if (ptr == png_ptr->offset_table_ptr[i])
+         {
+            ptr = NULL;
+            png_ptr->offset_table_count_free++;
+            break;
+         }
+      }
+      if (png_ptr->offset_table_count_free == png_ptr->offset_table_count)
+      {
+         farfree(png_ptr->offset_table);
+         farfree(png_ptr->offset_table_ptr);
+         png_ptr->offset_table = NULL;
+         png_ptr->offset_table_ptr = NULL;
+      }
+   }
+
+   if (ptr != NULL)
+   {
+      farfree(ptr);
+      ptr = NULL;
+   }
+}
+
+#else /* Not the Borland DOS special memory handler */
+
+/* Allocate memory for a png_struct or a png_info.  The malloc and
+   memset can be replaced by a single call to calloc() if this is thought
+   to improve performance noticably.*/
+png_voidp
+png_create_struct(int type)
+{
+#ifdef PNG_USER_MEM_SUPPORTED
+   return (png_create_struct_2(type, NULL));
+}
+
+/* Allocate memory for a png_struct or a png_info.  The malloc and
+   memset can be replaced by a single call to calloc() if this is thought
+   to improve performance noticably.*/
+png_voidp
+png_create_struct_2(int type, png_malloc_ptr malloc_fn)
+{
+#endif /* PNG_USER_MEM_SUPPORTED */
+   png_size_t size;
+   png_voidp struct_ptr;
+
+   if (type == PNG_STRUCT_INFO)
+      size = sizeof(png_info);
+   else if (type == PNG_STRUCT_PNG)
+      size = sizeof(png_struct);
+   else
+      return ((png_voidp)NULL);
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   if(malloc_fn != NULL)
+   {
+      if ((struct_ptr = (*(malloc_fn))(NULL, size)) != NULL)
+         png_memset(struct_ptr, 0, size);
+      return (struct_ptr);
+   }
+#endif /* PNG_USER_MEM_SUPPORTED */
+
+#if defined(__TURBOC__) && !defined(__FLAT__)
+   if ((struct_ptr = (png_voidp)farmalloc(size)) != NULL)
+#else
+# if defined(_MSC_VER) && defined(MAXSEG_64K)
+   if ((struct_ptr = (png_voidp)halloc(size,1)) != NULL)
+# else
+   if ((struct_ptr = (png_voidp)malloc(size)) != NULL)
+# endif
+#endif
+   {
+      png_memset(struct_ptr, 0, size);
+   }
+
+   return (struct_ptr);
+}
+
+
+/* Free memory allocated by a png_create_struct() call */
+void
+png_destroy_struct(png_voidp struct_ptr)
+{
+#ifdef PNG_USER_MEM_SUPPORTED
+   png_destroy_struct_2(struct_ptr, (png_free_ptr)NULL);
+}
+
+/* Free memory allocated by a png_create_struct() call */
+void
+png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn)
+{
+#endif /* PNG_USER_MEM_SUPPORTED */
+   if (struct_ptr != NULL)
+   {
+#ifdef PNG_USER_MEM_SUPPORTED
+      if(free_fn != NULL)
+      {
+         png_struct dummy_struct;
+         png_structp png_ptr = &dummy_struct;
+         (*(free_fn))(png_ptr, struct_ptr);
+         struct_ptr = NULL;
+         return;
+      }
+#endif /* PNG_USER_MEM_SUPPORTED */
+#if defined(__TURBOC__) && !defined(__FLAT__)
+      farfree(struct_ptr);
+      struct_ptr = NULL;
+#else
+# if defined(_MSC_VER) && defined(MAXSEG_64K)
+      hfree(struct_ptr);
+      struct_ptr = NULL;
+# else
+      free(struct_ptr);
+      struct_ptr = NULL;
+# endif
+#endif
+   }
+}
+
+
+/* Allocate memory.  For reasonable files, size should never exceed
+   64K.  However, zlib may allocate more then 64K if you don't tell
+   it not to.  See zconf.h and png.h for more information.  zlib does
+   need to allocate exactly 64K, so whatever you call here must
+   have the ability to do that. */
+
+png_voidp
+png_malloc(png_structp png_ptr, png_uint_32 size)
+{
+#ifndef PNG_USER_MEM_SUPPORTED
+   png_voidp ret;
+#endif
+   if (png_ptr == NULL || size == 0)
+      return ((png_voidp)NULL);
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   if(png_ptr->malloc_fn != NULL)
+       return ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, size));
+   else
+       return (png_malloc_default(png_ptr, size));
+}
+png_voidp
+png_malloc_default(png_structp png_ptr, png_uint_32 size)
+{
+   png_voidp ret;
+#endif /* PNG_USER_MEM_SUPPORTED */
+
+#ifdef PNG_MAX_MALLOC_64K
+   if (size > (png_uint_32)65536L)
+      png_error(png_ptr, "Cannot Allocate > 64K");
+#endif
+
+#if defined(__TURBOC__) && !defined(__FLAT__)
+   ret = farmalloc(size);
+#else
+# if defined(_MSC_VER) && defined(MAXSEG_64K)
+   ret = halloc(size, 1);
+# else
+   ret = malloc((size_t)size);
+# endif
+#endif
+
+   if (ret == NULL)
+   {
+      png_error(png_ptr, "Out of Memory");
+   }
+
+   return (ret);
+}
+
+/* Free a pointer allocated by png_malloc().  If ptr is NULL, return
+   without taking any action. */
+void
+png_free(png_structp png_ptr, png_voidp ptr)
+{
+   if (png_ptr == NULL || ptr == NULL)
+      return;
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   if (png_ptr->free_fn != NULL)
+   {
+      (*(png_ptr->free_fn))(png_ptr, ptr);
+      ptr = NULL;
+      return;
+   }
+   else png_free_default(png_ptr, ptr);
+}
+void
+png_free_default(png_structp png_ptr, png_voidp ptr)
+{
+#endif /* PNG_USER_MEM_SUPPORTED */
+
+#if defined(__TURBOC__) && !defined(__FLAT__)
+   farfree(ptr);
+   ptr = NULL;
+#else
+# if defined(_MSC_VER) && defined(MAXSEG_64K)
+   hfree(ptr);
+   ptr = NULL;
+# else
+   free(ptr);
+   ptr = NULL;
+# endif
+#endif
+}
+
+#endif /* Not Borland DOS special memory handler */
+
+png_voidp
+png_memcpy_check (png_structp png_ptr, png_voidp s1, png_voidp s2,
+   png_uint_32 length)
+{
+   png_size_t size;
+
+   size = (png_size_t)length;
+   if ((png_uint_32)size != length)
+      png_error(png_ptr,"Overflow in png_memcpy_check.");
+
+   return(png_memcpy (s1, s2, size));
+}
+
+png_voidp
+png_memset_check (png_structp png_ptr, png_voidp s1, int value,
+   png_uint_32 length)
+{
+   png_size_t size;
+
+   size = (png_size_t)length;
+   if ((png_uint_32)size != length)
+      png_error(png_ptr,"Overflow in png_memset_check.");
+
+   return (png_memset (s1, value, size));
+
+}
+
+#ifdef PNG_USER_MEM_SUPPORTED
+/* This function is called when the application wants to use another method
+ * of allocating and freeing memory.
+ */
+void
+png_set_mem_fn(png_structp png_ptr, png_voidp mem_ptr, png_malloc_ptr
+  malloc_fn, png_free_ptr free_fn)
+{
+   png_ptr->mem_ptr = mem_ptr;
+   png_ptr->malloc_fn = malloc_fn;
+   png_ptr->free_fn = free_fn;
+}
+
+/* This function returns a pointer to the mem_ptr associated with the user
+ * functions.  The application should free any memory associated with this
+ * pointer before png_write_destroy and png_read_destroy are called.
+ */
+png_voidp
+png_get_mem_ptr(png_structp png_ptr)
+{
+   return ((png_voidp)png_ptr->mem_ptr);
+}
+#endif /* PNG_USER_MEM_SUPPORTED */

src/png/pngread.c

@@ -0,0 +1,885 @@
+
+/* pngread.c - read a PNG file
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ *
+ * This file contains routines that an application calls directly to
+ * read a PNG file or stream.
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+/* Create a PNG structure for reading, and allocate any memory needed. */
+png_structp
+png_create_read_struct(png_const_charp user_png_ver, png_voidp error_ptr,
+   png_error_ptr error_fn, png_error_ptr warn_fn)
+{
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   return (png_create_read_struct_2(user_png_ver, error_ptr, error_fn,
+      warn_fn, NULL, NULL, NULL));
+}
+
+/* Alternate create PNG structure for reading, and allocate any memory needed. */
+png_structp
+png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
+   png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr,
+   png_malloc_ptr malloc_fn, png_free_ptr free_fn)
+{
+#endif /* PNG_USER_MEM_SUPPORTED */
+
+   png_structp png_ptr;
+#ifdef USE_FAR_KEYWORD
+   jmp_buf jmpbuf;
+#endif
+   png_debug(1, "in png_create_read_struct\n");
+#ifdef PNG_USER_MEM_SUPPORTED
+   if ((png_ptr = (png_structp)png_create_struct_2(PNG_STRUCT_PNG,
+      (png_malloc_ptr)malloc_fn)) == NULL)
+#else
+   if ((png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG)) == NULL)
+#endif
+   {
+      return (png_structp)NULL;
+   }
+#ifdef USE_FAR_KEYWORD
+   if (setjmp(jmpbuf))
+#else
+   if (setjmp(png_ptr->jmpbuf))
+#endif
+   {
+      png_free(png_ptr, png_ptr->zbuf);
+      png_destroy_struct(png_ptr);
+      return (png_structp)NULL;
+   }
+#ifdef USE_FAR_KEYWORD
+   png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf));
+#endif
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   png_set_mem_fn(png_ptr, mem_ptr, malloc_fn, free_fn);
+#endif /* PNG_USER_MEM_SUPPORTED */
+
+   png_set_error_fn(png_ptr, error_ptr, error_fn, warn_fn);
+
+   /* Libpng 0.90 and later are binary incompatible with libpng 0.89, so
+    * we must recompile any applications that use any older library version.
+    * For versions after libpng 1.0, we will be compatible, so we need
+    * only check the first digit.
+    */
+   if (user_png_ver == NULL || user_png_ver[0] != png_libpng_ver[0] ||
+       (user_png_ver[0] == '0' && user_png_ver[2] < '9'))
+   {
+      png_error(png_ptr,
+         "Incompatible libpng version in application and library");
+   }
+
+   /* initialize zbuf - compression buffer */
+   png_ptr->zbuf_size = PNG_ZBUF_SIZE;
+   png_ptr->zbuf = (png_bytep)png_malloc(png_ptr,
+     (png_uint_32)png_ptr->zbuf_size);
+   png_ptr->zstream.zalloc = png_zalloc;
+   png_ptr->zstream.zfree = png_zfree;
+   png_ptr->zstream.opaque = (voidpf)png_ptr;
+
+   switch (inflateInit(&png_ptr->zstream))
+   {
+     case Z_OK: /* Do nothing */ break;
+     case Z_MEM_ERROR:
+     case Z_STREAM_ERROR: png_error(png_ptr, "zlib memory error"); break;
+     case Z_VERSION_ERROR: png_error(png_ptr, "zlib version error"); break;
+     default: png_error(png_ptr, "Unknown zlib error");
+   }
+
+   png_ptr->zstream.next_out = png_ptr->zbuf;
+   png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
+
+   png_set_read_fn(png_ptr, NULL, NULL);
+
+   return (png_ptr);
+}
+
+/* Initialize PNG structure for reading, and allocate any memory needed.
+   This interface is deprecated in favour of the png_create_read_struct(),
+   and it will eventually disappear. */
+void
+png_read_init(png_structp png_ptr)
+{
+   jmp_buf tmp_jmp;  /* to save current jump buffer */
+
+   png_debug(1, "in png_read_init\n");
+   /* save jump buffer and error functions */
+   png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf));
+
+   /* reset all variables to 0 */
+   png_memset(png_ptr, 0, sizeof (png_struct));
+
+   /* restore jump buffer */
+   png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf));
+
+   /* initialize zbuf - compression buffer */
+   png_ptr->zbuf_size = PNG_ZBUF_SIZE;
+   png_ptr->zbuf = (png_bytep)png_malloc(png_ptr,
+     (png_uint_32)png_ptr->zbuf_size);
+   png_ptr->zstream.zalloc = png_zalloc;
+   png_ptr->zstream.zfree = png_zfree;
+   png_ptr->zstream.opaque = (voidpf)png_ptr;
+
+   switch (inflateInit(&png_ptr->zstream))
+   {
+     case Z_OK: /* Do nothing */ break;
+     case Z_MEM_ERROR:
+     case Z_STREAM_ERROR: png_error(png_ptr, "zlib memory"); break;
+     case Z_VERSION_ERROR: png_error(png_ptr, "zlib version"); break;
+     default: png_error(png_ptr, "Unknown zlib error");
+   }
+
+   png_ptr->zstream.next_out = png_ptr->zbuf;
+   png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
+
+   png_set_read_fn(png_ptr, NULL, NULL);
+}
+
+/* Read the information before the actual image data.  This has been
+ * changed in v0.90 to allow reading a file that already has the magic
+ * bytes read from the stream.  You can tell libpng how many bytes have
+ * been read from the beginning of the stream (up to the maximum of 8)
+ * via png_set_sig_bytes(), and we will only check the remaining bytes
+ * here.  The application can then have access to the signature bytes we
+ * read if it is determined that this isn't a valid PNG file.
+ */
+void
+png_read_info(png_structp png_ptr, png_infop info_ptr)
+{
+   png_debug(1, "in png_read_info\n");
+   /* save jump buffer and error functions */
+   /* If we haven't checked all of the PNG signature bytes, do so now. */
+   if (png_ptr->sig_bytes < 8)
+   {
+      png_size_t num_checked = png_ptr->sig_bytes,
+                 num_to_check = 8 - num_checked;
+
+      png_read_data(png_ptr, &(info_ptr->signature[num_checked]), num_to_check);
+      png_ptr->sig_bytes = 8;
+
+      if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check))
+      {
+         if (num_checked < 4 &&
+             png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4))
+            png_error(png_ptr, "Not a PNG file");
+         else
+            png_error(png_ptr, "PNG file corrupted by ASCII conversion");
+      }
+   }
+
+   for(;;)
+   {
+      png_byte chunk_length[4];
+      png_uint_32 length;
+
+      png_read_data(png_ptr, chunk_length, 4);
+      length = png_get_uint_32(chunk_length);
+
+      png_reset_crc(png_ptr);
+      png_crc_read(png_ptr, png_ptr->chunk_name, 4);
+
+      png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name);
+
+      /* This should be a binary subdivision search or a hash for
+       * matching the chunk name rather than a linear search.
+       */
+      if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
+         png_handle_IHDR(png_ptr, info_ptr, length);
+      else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4))
+         png_handle_PLTE(png_ptr, info_ptr, length);
+      else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
+         png_handle_IEND(png_ptr, info_ptr, length);
+      else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
+      {
+         if (!(png_ptr->mode & PNG_HAVE_IHDR))
+            png_error(png_ptr, "Missing IHDR before IDAT");
+         else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
+                  !(png_ptr->mode & PNG_HAVE_PLTE))
+            png_error(png_ptr, "Missing PLTE before IDAT");
+
+         png_ptr->idat_size = length;
+         png_ptr->mode |= PNG_HAVE_IDAT;
+         break;
+      }
+#if defined(PNG_READ_bKGD_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4))
+         png_handle_bKGD(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_cHRM_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4))
+         png_handle_cHRM(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_gAMA_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4))
+         png_handle_gAMA(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_hIST_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4))
+         png_handle_hIST(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_oFFs_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4))
+         png_handle_oFFs(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_pCAL_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4))
+         png_handle_pCAL(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_pHYs_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4))
+         png_handle_pHYs(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_sBIT_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4))
+         png_handle_sBIT(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_sRGB_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4))
+         png_handle_sRGB(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_tEXt_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4))
+         png_handle_tEXt(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_tIME_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4))
+         png_handle_tIME(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_tRNS_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4))
+         png_handle_tRNS(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_zTXt_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4))
+         png_handle_zTXt(png_ptr, info_ptr, length);
+#endif
+      else
+         png_handle_unknown(png_ptr, info_ptr, length);
+   }
+}
+
+/* optional call to update the users info_ptr structure */
+void
+png_read_update_info(png_structp png_ptr, png_infop info_ptr)
+{
+   png_debug(1, "in png_read_update_info\n");
+   /* save jump buffer and error functions */
+   if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
+      png_read_start_row(png_ptr);
+   png_read_transform_info(png_ptr, info_ptr);
+}
+
+/* Initialize palette, background, etc, after transformations
+ * are set, but before any reading takes place.  This allows
+ * the user to obtain a gamma-corrected palette, for example.
+ * If the user doesn't call this, we will do it ourselves.
+ */
+void
+png_start_read_image(png_structp png_ptr)
+{
+   png_debug(1, "in png_start_read_image\n");
+   /* save jump buffer and error functions */
+   if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
+      png_read_start_row(png_ptr);
+}
+
+void
+png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
+{
+   int ret;
+   png_debug2(1, "in png_read_row (row %d, pass %d)\n",
+      png_ptr->row_number, png_ptr->pass);
+   /* save jump buffer and error functions */
+   if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
+      png_read_start_row(png_ptr);
+   if (png_ptr->row_number == 0 && png_ptr->pass == 0)
+   {
+   /* check for transforms that have been set but were defined out */
+#if defined(PNG_WRITE_INVERT_SUPPORTED) && !defined(PNG_READ_INVERT_SUPPORTED)
+   if (png_ptr->transformations & PNG_INVERT_MONO)
+      png_warning(png_ptr, "PNG_READ_INVERT_SUPPORTED is not defined.");
+#endif
+#if defined(PNG_WRITE_FILLER_SUPPORTED) && !defined(PNG_READ_FILLER_SUPPORTED)
+   if (png_ptr->transformations & PNG_FILLER)
+      png_warning(png_ptr, "PNG_READ_FILLER_SUPPORTED is not defined.");
+#endif
+#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && !defined(PNG_READ_PACKSWAP_SUPPORTED)
+   if (png_ptr->transformations & PNG_PACKSWAP)
+      png_warning(png_ptr, "PNG_READ_PACKSWAP_SUPPORTED is not defined.");
+#endif
+#if defined(PNG_WRITE_PACK_SUPPORTED) && !defined(PNG_READ_PACK_SUPPORTED)
+   if (png_ptr->transformations & PNG_PACK)
+      png_warning(png_ptr, "PNG_READ_PACK_SUPPORTED is not defined.");
+#endif
+#if defined(PNG_WRITE_SHIFT_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED)
+   if (png_ptr->transformations & PNG_SHIFT)
+      png_warning(png_ptr, "PNG_READ_SHIFT_SUPPORTED is not defined.");
+#endif
+#if defined(PNG_WRITE_BGR_SUPPORTED) && !defined(PNG_READ_BGR_SUPPORTED)
+   if (png_ptr->transformations & PNG_BGR)
+      png_warning(png_ptr, "PNG_READ_BGR_SUPPORTED is not defined.");
+#endif
+#if defined(PNG_WRITE_SWAP_SUPPORTED) && !defined(PNG_READ_SWAP_SUPPORTED)
+   if (png_ptr->transformations & PNG_SWAP_BYTES)
+      png_warning(png_ptr, "PNG_READ_SWAP_SUPPORTED is not defined.");
+#endif
+   }
+
+#if defined(PNG_READ_INTERLACING_SUPPORTED)
+   /* if interlaced and we do not need a new row, combine row and return */
+   if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE))
+   {
+      switch (png_ptr->pass)
+      {
+         case 0:
+            if (png_ptr->row_number & 7)
+            {
+               if (dsp_row != NULL)
+                  png_combine_row(png_ptr, dsp_row,
+                     png_pass_dsp_mask[png_ptr->pass]);
+               png_read_finish_row(png_ptr);
+               return;
+            }
+            break;
+         case 1:
+            if ((png_ptr->row_number & 7) || png_ptr->width < 5)
+            {
+               if (dsp_row != NULL)
+                  png_combine_row(png_ptr, dsp_row,
+                     png_pass_dsp_mask[png_ptr->pass]);
+               png_read_finish_row(png_ptr);
+               return;
+            }
+            break;
+         case 2:
+            if ((png_ptr->row_number & 7) != 4)
+            {
+               if (dsp_row != NULL && (png_ptr->row_number & 4))
+                  png_combine_row(png_ptr, dsp_row,
+                     png_pass_dsp_mask[png_ptr->pass]);
+               png_read_finish_row(png_ptr);
+               return;
+            }
+            break;
+         case 3:
+            if ((png_ptr->row_number & 3) || png_ptr->width < 3)
+            {
+               if (dsp_row != NULL)
+                  png_combine_row(png_ptr, dsp_row,
+                     png_pass_dsp_mask[png_ptr->pass]);
+               png_read_finish_row(png_ptr);
+               return;
+            }
+            break;
+         case 4:
+            if ((png_ptr->row_number & 3) != 2)
+            {
+               if (dsp_row != NULL && (png_ptr->row_number & 2))
+                  png_combine_row(png_ptr, dsp_row,
+                     png_pass_dsp_mask[png_ptr->pass]);
+               png_read_finish_row(png_ptr);
+               return;
+            }
+            break;
+         case 5:
+            if ((png_ptr->row_number & 1) || png_ptr->width < 2)
+            {
+               if (dsp_row != NULL)
+                  png_combine_row(png_ptr, dsp_row,
+                     png_pass_dsp_mask[png_ptr->pass]);
+               png_read_finish_row(png_ptr);
+               return;
+            }
+            break;
+         case 6:
+            if (!(png_ptr->row_number & 1))
+            {
+               png_read_finish_row(png_ptr);
+               return;
+            }
+            break;
+      }
+   }
+#endif
+
+   if (!(png_ptr->mode & PNG_HAVE_IDAT))
+      png_error(png_ptr, "Invalid attempt to read row data");
+
+   png_ptr->zstream.next_out = png_ptr->row_buf;
+   png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes;
+   do
+   {
+      if (!(png_ptr->zstream.avail_in))
+      {
+         while (!png_ptr->idat_size)
+         {
+            png_byte chunk_length[4];
+
+            png_crc_finish(png_ptr, 0);
+
+            png_read_data(png_ptr, chunk_length, 4);
+            png_ptr->idat_size = png_get_uint_32(chunk_length);
+
+            png_reset_crc(png_ptr);
+            png_crc_read(png_ptr, png_ptr->chunk_name, 4);
+            if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
+               png_error(png_ptr, "Not enough image data");
+         }
+         png_ptr->zstream.avail_in = (uInt)png_ptr->zbuf_size;
+         png_ptr->zstream.next_in = png_ptr->zbuf;
+         if (png_ptr->zbuf_size > png_ptr->idat_size)
+            png_ptr->zstream.avail_in = (uInt)png_ptr->idat_size;
+         png_crc_read(png_ptr, png_ptr->zbuf,
+            (png_size_t)png_ptr->zstream.avail_in);
+         png_ptr->idat_size -= png_ptr->zstream.avail_in;
+      }
+      ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH);
+      if (ret == Z_STREAM_END)
+      {
+         if (png_ptr->zstream.avail_out || png_ptr->zstream.avail_in ||
+            png_ptr->idat_size)
+            png_error(png_ptr, "Extra compressed data");
+         png_ptr->mode |= PNG_AFTER_IDAT;
+         png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
+         break;
+      }
+      if (ret != Z_OK)
+         png_error(png_ptr, png_ptr->zstream.msg ? png_ptr->zstream.msg :
+                   "Decompression error");
+
+   } while (png_ptr->zstream.avail_out);
+
+   png_ptr->row_info.color_type = png_ptr->color_type;
+   png_ptr->row_info.width = png_ptr->iwidth;
+   png_ptr->row_info.channels = png_ptr->channels;
+   png_ptr->row_info.bit_depth = png_ptr->bit_depth;
+   png_ptr->row_info.pixel_depth = png_ptr->pixel_depth;
+   {
+      png_ptr->row_info.rowbytes = ((png_ptr->row_info.width *
+         (png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3);
+   }
+
+   png_read_filter_row(png_ptr, &(png_ptr->row_info),
+      png_ptr->row_buf + 1, png_ptr->prev_row + 1,
+      (int)(png_ptr->row_buf[0]));
+
+   png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf,
+      png_ptr->rowbytes + 1);
+
+   if (png_ptr->transformations)
+      png_do_read_transformations(png_ptr);
+
+#if defined(PNG_READ_INTERLACING_SUPPORTED)
+   /* blow up interlaced rows to full size */
+   if (png_ptr->interlaced &&
+      (png_ptr->transformations & PNG_INTERLACE))
+   {
+      if (png_ptr->pass < 6)
+         png_do_read_interlace(&(png_ptr->row_info),
+            png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations);
+
+      if (dsp_row != NULL)
+         png_combine_row(png_ptr, dsp_row,
+            png_pass_dsp_mask[png_ptr->pass]);
+      if (row != NULL)
+         png_combine_row(png_ptr, row,
+            png_pass_mask[png_ptr->pass]);
+   }
+   else
+#endif
+   {
+      if (row != NULL)
+         png_combine_row(png_ptr, row, 0xff);
+      if (dsp_row != NULL)
+         png_combine_row(png_ptr, dsp_row, 0xff);
+   }
+   png_read_finish_row(png_ptr);
+
+   if (png_ptr->read_row_fn != NULL)
+      (*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass);
+}
+
+/* Read one or more rows of image data.  If the image is interlaced,
+ * and png_set_interlace_handling() has been called, the rows need to
+ * contain the contents of the rows from the previous pass.  If the
+ * image has alpha or transparency, and png_handle_alpha()[*] has been
+ * called, the rows contents must be initialized to the contents of the
+ * screen.
+ *
+ * "row" holds the actual image, and pixels are placed in it
+ * as they arrive.  If the image is displayed after each pass, it will
+ * appear to "sparkle" in.  "display_row" can be used to display a
+ * "chunky" progressive image, with finer detail added as it becomes
+ * available.  If you do not want this "chunky" display, you may pass
+ * NULL for display_row.  If you do not want the sparkle display, and
+ * you have not called png_handle_alpha(), you may pass NULL for rows.
+ * If you have called png_handle_alpha(), and the image has either an
+ * alpha channel or a transparency chunk, you must provide a buffer for
+ * rows.  In this case, you do not have to provide a display_row buffer
+ * also, but you may.  If the image is not interlaced, or if you have
+ * not called png_set_interlace_handling(), the display_row buffer will
+ * be ignored, so pass NULL to it.
+ *
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.3.
+ */
+
+void
+png_read_rows(png_structp png_ptr, png_bytepp row,
+   png_bytepp display_row, png_uint_32 num_rows)
+{
+   png_uint_32 i;
+   png_bytepp rp;
+   png_bytepp dp;
+
+   png_debug(1, "in png_read_rows\n");
+   /* save jump buffer and error functions */
+   rp = row;
+   dp = display_row;
+   if (rp != NULL && dp != NULL)
+      for (i = 0; i < num_rows; i++)
+      {
+         png_bytep rptr = *rp++;
+         png_bytep dptr = *dp++;
+
+         png_read_row(png_ptr, rptr, dptr);
+      }
+   else if(rp != NULL)
+      for (i = 0; i < num_rows; i++)
+      {
+         png_bytep rptr = *rp;
+         png_read_row(png_ptr, rptr, NULL);
+         rp++;
+      }
+   else if(dp != NULL)
+      for (i = 0; i < num_rows; i++)
+      {
+         png_bytep dptr = *dp;
+         png_read_row(png_ptr, NULL, dptr);
+         dp++;
+      }
+}
+
+/* Read the entire image.  If the image has an alpha channel or a tRNS
+ * chunk, and you have called png_handle_alpha()[*], you will need to
+ * initialize the image to the current image that PNG will be overlaying.
+ * We set the num_rows again here, in case it was incorrectly set in
+ * png_read_start_row() by a call to png_read_update_info() or
+ * png_start_read_image() if png_set_interlace_handling() wasn't called
+ * prior to either of these functions like it should have been.  You can
+ * only call this function once.  If you desire to have an image for
+ * each pass of a interlaced image, use png_read_rows() instead.
+ *
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.3.
+ */
+void
+png_read_image(png_structp png_ptr, png_bytepp image)
+{
+   png_uint_32 i,image_height;
+   int pass, j;
+   png_bytepp rp;
+
+   png_debug(1, "in png_read_image\n");
+   /* save jump buffer and error functions */
+   pass = png_set_interlace_handling(png_ptr);
+
+   image_height=png_ptr->height;
+   png_ptr->num_rows = image_height; /* Make sure this is set correctly */
+
+   for (j = 0; j < pass; j++)
+   {
+      rp = image;
+      for (i = 0; i < image_height; i++)
+      {
+         png_read_row(png_ptr, *rp, NULL);
+         rp++;
+      }
+   }
+}
+
+/* Read the end of the PNG file.  Will not read past the end of the
+ * file, will verify the end is accurate, and will read any comments
+ * or time information at the end of the file, if info is not NULL.
+ */
+void
+png_read_end(png_structp png_ptr, png_infop info_ptr)
+{
+   png_byte chunk_length[4];
+   png_uint_32 length;
+
+   png_debug(1, "in png_read_end\n");
+   /* save jump buffer and error functions */
+   png_crc_finish(png_ptr, 0); /* Finish off CRC from last IDAT chunk */
+
+   do
+   {
+      png_read_data(png_ptr, chunk_length, 4);
+      length = png_get_uint_32(chunk_length);
+
+      png_reset_crc(png_ptr);
+      png_crc_read(png_ptr, png_ptr->chunk_name, 4);
+
+      png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name);
+
+      if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
+         png_handle_IHDR(png_ptr, info_ptr, length);
+      else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
+      {
+         /* Zero length IDATs are legal after the last IDAT has been
+          * read, but not after other chunks have been read.
+          */
+         if (length > 0 || png_ptr->mode & PNG_AFTER_IDAT)
+            png_error(png_ptr, "Too many IDAT's found");
+         else
+            png_crc_finish(png_ptr, 0);
+      }
+      else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4))
+         png_handle_PLTE(png_ptr, info_ptr, length);
+      else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
+         png_handle_IEND(png_ptr, info_ptr, length);
+#if defined(PNG_READ_bKGD_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4))
+         png_handle_bKGD(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_cHRM_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4))
+         png_handle_cHRM(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_gAMA_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4))
+         png_handle_gAMA(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_hIST_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4))
+         png_handle_hIST(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_oFFs_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4))
+         png_handle_oFFs(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_pCAL_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4))
+         png_handle_pCAL(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_pHYs_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4))
+         png_handle_pHYs(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_sBIT_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4))
+         png_handle_sBIT(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_sRGB_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4))
+         png_handle_sRGB(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_tEXt_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4))
+         png_handle_tEXt(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_tIME_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4))
+         png_handle_tIME(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_tRNS_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4))
+         png_handle_tRNS(png_ptr, info_ptr, length);
+#endif
+#if defined(PNG_READ_zTXt_SUPPORTED)
+      else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4))
+         png_handle_zTXt(png_ptr, info_ptr, length);
+#endif
+      else
+         png_handle_unknown(png_ptr, info_ptr, length);
+   } while (!(png_ptr->mode & PNG_HAVE_IEND));
+}
+
+/* free all memory used by the read */
+void
+png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr,
+   png_infopp end_info_ptr_ptr)
+{
+   png_structp png_ptr = NULL;
+   png_infop info_ptr = NULL, end_info_ptr = NULL;
+#ifdef PNG_USER_MEM_SUPPORTED
+   png_free_ptr free_fn = NULL;
+#endif /* PNG_USER_MEM_SUPPORTED */
+
+   png_debug(1, "in png_destroy_read_struct\n");
+   /* save jump buffer and error functions */
+   if (png_ptr_ptr != NULL)
+      png_ptr = *png_ptr_ptr;
+
+   if (info_ptr_ptr != NULL)
+      info_ptr = *info_ptr_ptr;
+
+   if (end_info_ptr_ptr != NULL)
+      end_info_ptr = *end_info_ptr_ptr;
+
+#ifdef PNG_USER_MEM_SUPPORTED
+   free_fn = png_ptr->free_fn;
+#endif
+
+   png_read_destroy(png_ptr, info_ptr, end_info_ptr);
+
+   if (info_ptr != NULL)
+   {
+#if defined(PNG_READ_tEXt_SUPPORTED) || defined(PNG_READ_zTXt_SUPPORTED)
+      png_free(png_ptr, info_ptr->text);
+#endif
+
+#ifdef PNG_USER_MEM_SUPPORTED
+      png_destroy_struct_2((png_voidp)info_ptr, free_fn);
+#else
+      png_destroy_struct((png_voidp)info_ptr);
+#endif
+      *info_ptr_ptr = (png_infop)NULL;
+   }
+
+   if (end_info_ptr != NULL)
+   {
+#if defined(PNG_READ_tEXt_SUPPORTED) || defined(PNG_READ_zTXt_SUPPORTED)
+      png_free(png_ptr, end_info_ptr->text);
+#endif
+#ifdef PNG_USER_MEM_SUPPORTED
+      png_destroy_struct_2((png_voidp)end_info_ptr, free_fn);
+#else
+      png_destroy_struct((png_voidp)end_info_ptr);
+#endif
+      *end_info_ptr_ptr = (png_infop)NULL;
+   }
+
+   if (png_ptr != NULL)
+   {
+#ifdef PNG_USER_MEM_SUPPORTED
+      png_destroy_struct_2((png_voidp)png_ptr, free_fn);
+#else
+      png_destroy_struct((png_voidp)png_ptr);
+#endif
+      *png_ptr_ptr = (png_structp)NULL;
+   }
+}
+
+/* free all memory used by the read (old method) */
+void
+png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr)
+{
+   jmp_buf tmp_jmp;
+   png_error_ptr error_fn;
+   png_error_ptr warning_fn;
+   png_voidp error_ptr;
+#ifdef PNG_USER_MEM_SUPPORTED
+   png_free_ptr free_fn;
+#endif
+
+   png_debug(1, "in png_read_destroy\n");
+   /* save jump buffer and error functions */
+   if (info_ptr != NULL)
+      png_info_destroy(png_ptr, info_ptr);
+
+   if (end_info_ptr != NULL)
+      png_info_destroy(png_ptr, end_info_ptr);
+
+   png_free(png_ptr, png_ptr->zbuf);
+   png_free(png_ptr, png_ptr->row_buf);
+   png_free(png_ptr, png_ptr->prev_row);
+#if defined(PNG_READ_DITHER_SUPPORTED)
+   png_free(png_ptr, png_ptr->palette_lookup);
+   png_free(png_ptr, png_ptr->dither_index);
+#endif
+#if defined(PNG_READ_GAMMA_SUPPORTED)
+   png_free(png_ptr, png_ptr->gamma_table);
+#endif
+#if defined(PNG_READ_BACKGROUND_SUPPORTED)
+   png_free(png_ptr, png_ptr->gamma_from_1);
+   png_free(png_ptr, png_ptr->gamma_to_1);
+#endif
+   if (png_ptr->flags & PNG_FLAG_FREE_PALETTE)
+      png_zfree(png_ptr, png_ptr->palette);
+   if (png_ptr->flags & PNG_FLAG_FREE_TRANS)
+      png_free(png_ptr, png_ptr->trans);
+#if defined(PNG_READ_hIST_SUPPORTED)
+   if (png_ptr->flags & PNG_FLAG_FREE_HIST)
+      png_free(png_ptr, png_ptr->hist);
+#endif
+#if defined(PNG_READ_GAMMA_SUPPORTED)
+   if (png_ptr->gamma_16_table != NULL)
+   {
+      int i;
+      int istop = (1 << (8 - png_ptr->gamma_shift));
+      for (i = 0; i < istop; i++)
+      {
+         png_free(png_ptr, png_ptr->gamma_16_table[i]);
+      }
+   png_free(png_ptr, png_ptr->gamma_16_table);
+   }
+#if defined(PNG_READ_BACKGROUND_SUPPORTED)
+   if (png_ptr->gamma_16_from_1 != NULL)
+   {
+      int i;
+      int istop = (1 << (8 - png_ptr->gamma_shift));
+      for (i = 0; i < istop; i++)
+      {
+         png_free(png_ptr, png_ptr->gamma_16_from_1[i]);
+      }
+   png_free(png_ptr, png_ptr->gamma_16_from_1);
+   }
+   if (png_ptr->gamma_16_to_1 != NULL)
+   {
+      int i;
+      int istop = (1 << (8 - png_ptr->gamma_shift));
+      for (i = 0; i < istop; i++)
+      {
+         png_free(png_ptr, png_ptr->gamma_16_to_1[i]);
+      }
+   png_free(png_ptr, png_ptr->gamma_16_to_1);
+   }
+#endif
+#endif
+#if defined(PNG_TIME_RFC1123_SUPPORTED)
+   png_free(png_ptr, png_ptr->time_buffer);
+#endif /* PNG_TIME_RFC1123_SUPPORTED */
+
+   inflateEnd(&png_ptr->zstream);
+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
+   png_free(png_ptr, png_ptr->save_buffer);
+#endif
+
+   /* Save the important info out of the png_struct, in case it is
+    * being used again.
+    */
+   png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf));
+
+   error_fn = png_ptr->error_fn;
+   warning_fn = png_ptr->warning_fn;
+   error_ptr = png_ptr->error_ptr;
+#ifdef PNG_USER_MEM_SUPPORTED
+   free_fn = png_ptr->free_fn;
+#endif
+
+   png_memset(png_ptr, 0, sizeof (png_struct));
+
+   png_ptr->error_fn = error_fn;
+   png_ptr->warning_fn = warning_fn;
+   png_ptr->error_ptr = error_ptr;
+#ifdef PNG_USER_MEM_SUPPORTED
+   png_ptr->free_fn = free_fn;
+#endif
+
+   png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf));
+}
+
+void
+png_set_read_status_fn(png_structp png_ptr, png_read_status_ptr read_row_fn)
+{
+   png_ptr->read_row_fn = read_row_fn;
+}

src/png/pngrio.c

@@ -0,0 +1,156 @@
+
+/* pngrio.c - functions for data input
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ *
+ * This file provides a location for all input.  Users who need
+ * special handling are expected to write a function that has the same
+ * arguments as this and performs a similar function, but that possibly
+ * has a different input method.  Note that you shouldn't change this
+ * function, but rather write a replacement function and then make
+ * libpng use it at run time with png_set_read_fn(...).
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+/* Read the data from whatever input you are using.  The default routine
+   reads from a file pointer.  Note that this routine sometimes gets called
+   with very small lengths, so you should implement some kind of simple
+   buffering if you are using unbuffered reads.  This should never be asked
+   to read more then 64K on a 16 bit machine. */
+void
+png_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
+{
+   png_debug1(4,"reading %d bytes\n", length);
+   if (png_ptr->read_data_fn != NULL)
+      (*(png_ptr->read_data_fn))(png_ptr, data, length);
+   else
+      png_error(png_ptr, "Call to NULL read function");
+}
+
+#if !defined(PNG_NO_STDIO)
+/* This is the function that does the actual reading of data.  If you are
+   not reading from a standard C stream, you should create a replacement
+   read_data function and use it at run time with png_set_read_fn(), rather
+   than changing the library. */
+#ifndef USE_FAR_KEYWORD
+#ifdef __VISAGECPP__
+static void _Optlink
+png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
+#else
+static void
+png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
+#endif
+{
+   png_size_t check;
+
+   /* fread() returns 0 on error, so it is OK to store this in a png_size_t
+    * instead of an int, which is what fread() actually returns.
+    */
+   check = (png_size_t)fread(data, (png_size_t)1, length,
+      (FILE *)png_ptr->io_ptr);
+
+   if (check != length)
+   {
+      png_error(png_ptr, "Read Error");
+   }
+}
+#else
+/* this is the model-independent version. Since the standard I/O library
+   can't handle far buffers in the medium and small models, we have to copy
+   the data.
+*/
+
+#define NEAR_BUF_SIZE 1024
+#define MIN(a,b) (a <= b ? a : b)
+
+static void
+png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
+{
+   int check;
+   png_byte *n_data;
+   FILE *io_ptr;
+
+   /* Check if data really is near. If so, use usual code. */
+   n_data = (png_byte *)CVT_PTR_NOCHECK(data);
+   io_ptr = (FILE *)CVT_PTR(png_ptr->io_ptr);
+   if ((png_bytep)n_data == data)
+   {
+      check = fread(n_data, 1, length, io_ptr);
+   }
+   else
+   {
+      png_byte buf[NEAR_BUF_SIZE];
+      png_size_t read, remaining, err;
+      check = 0;
+      remaining = length;
+      do
+      {
+         read = MIN(NEAR_BUF_SIZE, remaining);
+         err = fread(buf, (png_size_t)1, read, io_ptr);
+         png_memcpy(data, buf, read); /* copy far buffer to near buffer */
+         if(err != read)
+            break;
+         else
+            check += err;
+         data += read;
+         remaining -= read;
+      }
+      while (remaining != 0);
+   }
+   if ((png_uint_32)check != (png_uint_32)length)
+   {
+      png_error(png_ptr, "read Error");
+   }
+}
+#endif
+#endif
+
+/* This function allows the application to supply a new input function
+   for libpng if standard C streams aren't being used.
+
+   This function takes as its arguments:
+   png_ptr      - pointer to a png input data structure
+   io_ptr       - pointer to user supplied structure containing info about
+                  the input functions.  May be NULL.
+   read_data_fn - pointer to a new input function that takes as its
+                  arguments a pointer to a png_struct, a pointer to
+                  a location where input data can be stored, and a 32-bit
+                  unsigned int that is the number of bytes to be read.
+                  To exit and output any fatal error messages the new write
+                  function should call png_error(png_ptr, "Error msg"). */
+void
+png_set_read_fn(png_structp png_ptr, png_voidp io_ptr,
+   png_rw_ptr read_data_fn)
+{
+   png_ptr->io_ptr = io_ptr;
+
+#if !defined(PNG_NO_STDIO)
+   if (read_data_fn != NULL)
+      png_ptr->read_data_fn = read_data_fn;
+   else
+      png_ptr->read_data_fn = png_default_read_data;
+#else
+   png_ptr->read_data_fn = read_data_fn;
+#endif
+
+   /* It is an error to write to a read device */
+   if (png_ptr->write_data_fn != NULL)
+   {
+      png_ptr->write_data_fn = NULL;
+      png_warning(png_ptr,
+         "It's an error to set both read_data_fn and write_data_fn in the ");
+      png_warning(png_ptr,
+         "same structure.  Resetting write_data_fn to NULL.");
+   }
+
+#if defined(PNG_WRITE_FLUSH_SUPPORTED)
+   png_ptr->output_flush_fn = NULL;
+#endif /* PNG_WRITE_FLUSH_SUPPORTED */
+}
+

src/png/pngset.c

@@ -0,0 +1,380 @@
+
+/* pngset.c - storage of image information into info struct
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ *
+ * The functions here are used during reads to store data from the file
+ * into the info struct, and during writes to store application data
+ * into the info struct for writing into the file.  This abstracts the
+ * info struct and allows us to change the structure in the future.
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+#if defined(PNG_READ_bKGD_SUPPORTED) || defined(PNG_WRITE_bKGD_SUPPORTED)
+void
+png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background)
+{
+   png_debug1(1, "in %s storage function\n", "bKGD");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   png_memcpy(&(info_ptr->background), background, sizeof(png_color_16));
+   info_ptr->valid |= PNG_INFO_bKGD;
+}
+#endif
+
+#if defined(PNG_READ_cHRM_SUPPORTED) || defined(PNG_WRITE_cHRM_SUPPORTED)
+void
+png_set_cHRM(png_structp png_ptr, png_infop info_ptr,
+   double white_x, double white_y, double red_x, double red_y,
+   double green_x, double green_y, double blue_x, double blue_y)
+{
+   png_debug1(1, "in %s storage function\n", "cHRM");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   info_ptr->x_white = (float)white_x;
+   info_ptr->y_white = (float)white_y;
+   info_ptr->x_red   = (float)red_x;
+   info_ptr->y_red   = (float)red_y;
+   info_ptr->x_green = (float)green_x;
+   info_ptr->y_green = (float)green_y;
+   info_ptr->x_blue  = (float)blue_x;
+   info_ptr->y_blue  = (float)blue_y;
+   info_ptr->valid |= PNG_INFO_cHRM;
+}
+#endif
+
+#if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_WRITE_gAMA_SUPPORTED)
+void
+png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma)
+{
+   png_debug1(1, "in %s storage function\n", "gAMA");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   info_ptr->gamma = (float)file_gamma;
+   info_ptr->valid |= PNG_INFO_gAMA;
+}
+#endif
+
+#if defined(PNG_READ_hIST_SUPPORTED) || defined(PNG_WRITE_hIST_SUPPORTED)
+void
+png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
+{
+   png_debug1(1, "in %s storage function\n", "hIST");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   info_ptr->hist = hist;
+   info_ptr->valid |= PNG_INFO_hIST;
+}
+#endif
+
+void
+png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 width, png_uint_32 height, int bit_depth,
+   int color_type, int interlace_type, int compression_type,
+   int filter_type)
+{
+   int rowbytes_per_pixel;
+   png_debug1(1, "in %s storage function\n", "IHDR");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   info_ptr->width = width;
+   info_ptr->height = height;
+   info_ptr->bit_depth = (png_byte)bit_depth;
+   info_ptr->color_type =(png_byte) color_type;
+   info_ptr->compression_type = (png_byte)compression_type;
+   info_ptr->filter_type = (png_byte)filter_type;
+   info_ptr->interlace_type = (png_byte)interlace_type;
+   if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
+      info_ptr->channels = 1;
+   else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR)
+      info_ptr->channels = 3;
+   else
+      info_ptr->channels = 1;
+   if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)
+      info_ptr->channels++;
+   info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
+
+   /* check for overflow */
+   rowbytes_per_pixel = (info_ptr->pixel_depth + 7) >> 3;
+   if (( width > (png_uint_32)2147483647L/rowbytes_per_pixel))
+   {
+      png_warning(png_ptr,
+         "Width too large to process image data; rowbytes will overflow.");
+      info_ptr->rowbytes = (png_size_t)0;
+   }
+   else
+      info_ptr->rowbytes = (info_ptr->width * info_ptr->pixel_depth + 7) >> 3;
+}
+
+#if defined(PNG_READ_oFFs_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED)
+void
+png_set_oFFs(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 offset_x, png_uint_32 offset_y, int unit_type)
+{
+   png_debug1(1, "in %s storage function\n", "oFFs");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   info_ptr->x_offset = offset_x;
+   info_ptr->y_offset = offset_y;
+   info_ptr->offset_unit_type = (png_byte)unit_type;
+   info_ptr->valid |= PNG_INFO_oFFs;
+}
+#endif
+
+#if defined(PNG_READ_pCAL_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED)
+void
+png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
+   png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams,
+   png_charp units, png_charpp params)
+{
+   png_uint_32 length;
+   int i;
+
+   png_debug1(1, "in %s storage function\n", "pCAL");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   length = png_strlen(purpose) + 1;
+   png_debug1(3, "allocating purpose for info (%d bytes)\n", length);
+   info_ptr->pcal_purpose = (png_charp)png_malloc(png_ptr, length);
+   png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length);
+
+   png_debug(3, "storing X0, X1, type, and nparams in info\n");
+   info_ptr->pcal_X0 = X0;
+   info_ptr->pcal_X1 = X1;
+   info_ptr->pcal_type = (png_byte)type;
+   info_ptr->pcal_nparams = (png_byte)nparams;
+
+   length = png_strlen(units) + 1;
+   png_debug1(3, "allocating units for info (%d bytes)\n", length);
+   info_ptr->pcal_units = (png_charp)png_malloc(png_ptr, length);
+   png_memcpy(info_ptr->pcal_units, units, (png_size_t)length);
+
+   info_ptr->pcal_params = (png_charpp)png_malloc(png_ptr,
+      (png_uint_32)((nparams + 1) * sizeof(png_charp)));
+   info_ptr->pcal_params[nparams] = NULL;
+
+   for (i = 0; i < nparams; i++)
+   {
+      length = png_strlen(params[i]) + 1;
+      png_debug2(3, "allocating parameter %d for info (%d bytes)\n", i, length);
+      info_ptr->pcal_params[i] = (png_charp)png_malloc(png_ptr, length);
+      png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length);
+   }
+
+   info_ptr->valid |= PNG_INFO_pCAL;
+}
+#endif
+
+#if defined(PNG_READ_pHYs_SUPPORTED) || defined(PNG_WRITE_pHYs_SUPPORTED)
+void
+png_set_pHYs(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 res_x, png_uint_32 res_y, int unit_type)
+{
+   png_debug1(1, "in %s storage function\n", "pHYs");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   info_ptr->x_pixels_per_unit = res_x;
+   info_ptr->y_pixels_per_unit = res_y;
+   info_ptr->phys_unit_type = (png_byte)unit_type;
+   info_ptr->valid |= PNG_INFO_pHYs;
+}
+#endif
+
+void
+png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
+   png_colorp palette, int num_palette)
+{
+   png_debug1(1, "in %s storage function\n", "PLTE");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   info_ptr->palette = palette;
+   info_ptr->num_palette = (png_uint_16)num_palette;
+   info_ptr->valid |= PNG_INFO_PLTE;
+}
+
+#if defined(PNG_READ_sBIT_SUPPORTED) || defined(PNG_WRITE_sBIT_SUPPORTED)
+void
+png_set_sBIT(png_structp png_ptr, png_infop info_ptr,
+   png_color_8p sig_bit)
+{
+   png_debug1(1, "in %s storage function\n", "sBIT");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   png_memcpy(&(info_ptr->sig_bit), sig_bit, sizeof (png_color_8));
+   info_ptr->valid |= PNG_INFO_sBIT;
+}
+#endif
+
+#if defined(PNG_READ_sRGB_SUPPORTED) || defined(PNG_WRITE_sRGB_SUPPORTED)
+void
+png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent)
+{
+   png_debug1(1, "in %s storage function\n", "sRGB");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   info_ptr->srgb_intent = (png_byte)intent;
+   info_ptr->valid |= PNG_INFO_sRGB;
+}
+void
+png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr,
+   int intent)
+{
+#if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_WRITE_gAMA_SUPPORTED)
+   float file_gamma;
+#endif
+#if defined(PNG_READ_cHRM_SUPPORTED) || defined(PNG_WRITE_cHRM_SUPPORTED)
+   float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y;
+#endif
+   png_debug1(1, "in %s storage function\n", "sRGB_gAMA_and_cHRM");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   png_set_sRGB(png_ptr, info_ptr, intent);
+
+#if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_WRITE_gAMA_SUPPORTED)
+   file_gamma = (float).45;
+   png_set_gAMA(png_ptr, info_ptr, file_gamma);
+#endif
+
+#if defined(PNG_READ_cHRM_SUPPORTED) || defined(PNG_WRITE_cHRM_SUPPORTED)
+   white_x = (float).3127;
+   white_y = (float).3290;
+   red_x   = (float).64;
+   red_y   = (float).33;
+   green_x = (float).30;
+   green_y = (float).60;
+   blue_x  = (float).15;
+   blue_y  = (float).06;
+
+   png_set_cHRM(png_ptr, info_ptr,
+      white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y);
+
+#endif
+}
+#endif
+
+#if defined(PNG_READ_tEXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
+    defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_WRITE_zTXt_SUPPORTED)
+void
+png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
+   int num_text)
+{
+   int i;
+
+   png_debug1(1, "in %s storage function\n", (png_ptr->chunk_name[0] == '\0' ?
+      "text" : (png_const_charp)png_ptr->chunk_name));
+
+   if (png_ptr == NULL || info_ptr == NULL || num_text == 0)
+      return;
+
+   /* Make sure we have enough space in the "text" array in info_struct
+    * to hold all of the incoming text_ptr objects.
+    */
+   if (info_ptr->num_text + num_text > info_ptr->max_text)
+   {
+      if (info_ptr->text != NULL)
+      {
+         png_textp old_text;
+         int old_max;
+
+         old_max = info_ptr->max_text;
+         info_ptr->max_text = info_ptr->num_text + num_text + 8;
+         old_text = info_ptr->text;
+         info_ptr->text = (png_textp)png_malloc(png_ptr,
+            (png_uint_32)(info_ptr->max_text * sizeof (png_text)));
+         png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max *
+            sizeof(png_text)));
+         png_free(png_ptr, old_text);
+      }
+      else
+      {
+         info_ptr->max_text = num_text + 8;
+         info_ptr->num_text = 0;
+         info_ptr->text = (png_textp)png_malloc(png_ptr,
+            (png_uint_32)(info_ptr->max_text * sizeof (png_text)));
+      }
+      png_debug1(3, "allocated %d entries for info_ptr->text\n",
+         info_ptr->max_text);
+   }
+
+   for (i = 0; i < num_text; i++)
+   {
+      png_textp textp = &(info_ptr->text[info_ptr->num_text]);
+
+      if (text_ptr[i].text == NULL)
+         text_ptr[i].text = (png_charp)"";
+
+      if (text_ptr[i].text[0] == '\0')
+      {
+         textp->text_length = 0;
+         textp->compression = PNG_TEXT_COMPRESSION_NONE;
+      }
+      else
+      {
+         textp->text_length = png_strlen(text_ptr[i].text);
+         textp->compression = text_ptr[i].compression;
+      }
+      textp->text = text_ptr[i].text;
+      textp->key = text_ptr[i].key;
+      info_ptr->num_text++;
+      png_debug1(3, "transferred text chunk %d\n", info_ptr->num_text);
+   }
+}
+#endif
+
+#if defined(PNG_READ_tIME_SUPPORTED) || defined(PNG_WRITE_tIME_SUPPORTED)
+void
+png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time)
+{
+   png_debug1(1, "in %s storage function\n", "tIME");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   png_memcpy(&(info_ptr->mod_time), mod_time, sizeof (png_time));
+   info_ptr->valid |= PNG_INFO_tIME;
+}
+#endif
+
+#if defined(PNG_READ_tRNS_SUPPORTED) || defined(PNG_WRITE_tRNS_SUPPORTED)
+void
+png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
+   png_bytep trans, int num_trans, png_color_16p trans_values)
+{
+   png_debug1(1, "in %s storage function\n", "tRNS");
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   if (trans != NULL)
+   {
+      info_ptr->trans = trans;
+   }
+
+   if (trans_values != NULL)
+   {
+      png_memcpy(&(info_ptr->trans_values), trans_values,
+         sizeof(png_color_16));
+      if (num_trans == 0)
+        num_trans = 1;
+   }
+   info_ptr->num_trans = (png_uint_16)num_trans;
+   info_ptr->valid |= PNG_INFO_tRNS;
+}
+#endif
+

src/png/pngtrans.c

@@ -0,0 +1,572 @@
+
+/* pngtrans.c - transforms the data in a row (used by both readers and writers)
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
+/* turn on bgr to rgb mapping */
+void
+png_set_bgr(png_structp png_ptr)
+{
+   png_debug(1, "in png_set_bgr\n");
+   png_ptr->transformations |= PNG_BGR;
+}
+#endif
+
+#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
+/* turn on 16 bit byte swapping */
+void
+png_set_swap(png_structp png_ptr)
+{
+   png_debug(1, "in png_set_swap\n");
+   if (png_ptr->bit_depth == 16)
+      png_ptr->transformations |= PNG_SWAP_BYTES;
+}
+#endif
+
+#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
+/* turn on pixel packing */
+void
+png_set_packing(png_structp png_ptr)
+{
+   png_debug(1, "in png_set_packing\n");
+   if (png_ptr->bit_depth < 8)
+   {
+      png_ptr->transformations |= PNG_PACK;
+      png_ptr->usr_bit_depth = 8;
+   }
+}
+#endif
+
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED)
+/* turn on packed pixel swapping */
+void
+png_set_packswap(png_structp png_ptr)
+{
+   png_debug(1, "in png_set_packswap\n");
+   if (png_ptr->bit_depth < 8)
+      png_ptr->transformations |= PNG_PACKSWAP;
+}
+#endif
+
+#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
+void
+png_set_shift(png_structp png_ptr, png_color_8p true_bits)
+{
+   png_debug(1, "in png_set_shift\n");
+   png_ptr->transformations |= PNG_SHIFT;
+   png_ptr->shift = *true_bits;
+}
+#endif
+
+#if defined(PNG_READ_INTERLACING_SUPPORTED) || \
+    defined(PNG_WRITE_INTERLACING_SUPPORTED)
+int
+png_set_interlace_handling(png_structp png_ptr)
+{
+   png_debug(1, "in png_set_interlace handling\n");
+   if (png_ptr->interlaced)
+   {
+      png_ptr->transformations |= PNG_INTERLACE;
+      return (7);
+   }
+
+   return (1);
+}
+#endif
+
+#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
+/* Add a filler byte on read, or remove a filler or alpha byte on write.
+ * The filler type has changed in v0.95 to allow future 2-byte fillers
+ * for 48-bit input data, as well as to avoid problems with some compilers
+ * that don't like bytes as parameters.
+ */
+void
+png_set_filler(png_structp png_ptr, png_uint_32 filler, int filler_loc)
+{
+   png_debug(1, "in png_set_filler\n");
+   png_ptr->transformations |= PNG_FILLER;
+   png_ptr->filler = (png_byte)filler;
+   if (filler_loc == PNG_FILLER_AFTER)
+      png_ptr->flags |= PNG_FLAG_FILLER_AFTER;
+   else
+      png_ptr->flags &= ~PNG_FLAG_FILLER_AFTER;
+
+   /* This should probably go in the "do_filler" routine.
+    * I attempted to do that in libpng-1.0.1a but that caused problems
+    * so I restored it in libpng-1.0.2a
+   */
+
+   if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
+   {
+      png_ptr->usr_channels = 4;
+   }
+
+   /* Also I added this in libpng-1.0.2a (what happens when we expand
+    * a less-than-8-bit grayscale to GA? */
+
+   if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY && png_ptr->bit_depth >= 8)
+   {
+      png_ptr->usr_channels = 2;
+   }
+}
+#endif
+
+#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \
+    defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
+void
+png_set_swap_alpha(png_structp png_ptr)
+{
+   png_debug(1, "in png_set_swap_alpha\n");
+   png_ptr->transformations |= PNG_SWAP_ALPHA;
+}
+#endif
+
+#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \
+    defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
+void
+png_set_invert_alpha(png_structp png_ptr)
+{
+   png_debug(1, "in png_set_invert_alpha\n");
+   png_ptr->transformations |= PNG_INVERT_ALPHA;
+}
+#endif
+
+#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED)
+void
+png_set_invert_mono(png_structp png_ptr)
+{
+   png_debug(1, "in png_set_invert_mono\n");
+   png_ptr->transformations |= PNG_INVERT_MONO;
+}
+
+/* invert monochrome grayscale data */
+void
+png_do_invert(png_row_infop row_info, png_bytep row)
+{
+   png_debug(1, "in png_do_invert\n");
+   if (row_info->bit_depth == 1 &&
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+       row != NULL && row_info != NULL &&
+#endif
+       row_info->color_type == PNG_COLOR_TYPE_GRAY)
+   {
+      png_bytep rp = row;
+      png_uint_32 i;
+      png_uint_32 istop = row_info->rowbytes;
+
+      for (i = 0; i < istop; i++)
+      {
+         *rp = (png_byte)(~(*rp));
+         rp++;
+      }
+   }
+}
+#endif
+
+#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
+/* swaps byte order on 16 bit depth images */
+void
+png_do_swap(png_row_infop row_info, png_bytep row)
+{
+   png_debug(1, "in png_do_swap\n");
+   if (
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+       row != NULL && row_info != NULL &&
+#endif
+       row_info->bit_depth == 16)
+   {
+      png_bytep rp = row;
+      png_uint_32 i;
+      png_uint_32 istop= row_info->width * row_info->channels;
+
+      for (i = 0; i < istop; i++, rp += 2)
+      {
+         png_byte t = *rp;
+         *rp = *(rp + 1);
+         *(rp + 1) = t;
+      }
+   }
+}
+#endif
+
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED)
+static png_byte onebppswaptable[256] = {
+   0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0,
+   0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
+   0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,
+   0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8,
+   0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4,
+   0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
+   0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC,
+   0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC,
+   0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2,
+   0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2,
+   0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA,
+   0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,
+   0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6,
+   0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6,
+   0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE,
+   0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE,
+   0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1,
+   0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
+   0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9,
+   0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9,
+   0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5,
+   0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5,
+   0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED,
+   0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,
+   0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3,
+   0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3,
+   0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB,
+   0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB,
+   0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7,
+   0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,
+   0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF,
+   0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
+};
+
+static png_byte twobppswaptable[256] = {
+   0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0,
+   0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0,
+   0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4,
+   0x24, 0x64, 0xA4, 0xE4, 0x34, 0x74, 0xB4, 0xF4,
+   0x08, 0x48, 0x88, 0xC8, 0x18, 0x58, 0x98, 0xD8,
+   0x28, 0x68, 0xA8, 0xE8, 0x38, 0x78, 0xB8, 0xF8,
+   0x0C, 0x4C, 0x8C, 0xCC, 0x1C, 0x5C, 0x9C, 0xDC,
+   0x2C, 0x6C, 0xAC, 0xEC, 0x3C, 0x7C, 0xBC, 0xFC,
+   0x01, 0x41, 0x81, 0xC1, 0x11, 0x51, 0x91, 0xD1,
+   0x21, 0x61, 0xA1, 0xE1, 0x31, 0x71, 0xB1, 0xF1,
+   0x05, 0x45, 0x85, 0xC5, 0x15, 0x55, 0x95, 0xD5,
+   0x25, 0x65, 0xA5, 0xE5, 0x35, 0x75, 0xB5, 0xF5,
+   0x09, 0x49, 0x89, 0xC9, 0x19, 0x59, 0x99, 0xD9,
+   0x29, 0x69, 0xA9, 0xE9, 0x39, 0x79, 0xB9, 0xF9,
+   0x0D, 0x4D, 0x8D, 0xCD, 0x1D, 0x5D, 0x9D, 0xDD,
+   0x2D, 0x6D, 0xAD, 0xED, 0x3D, 0x7D, 0xBD, 0xFD,
+   0x02, 0x42, 0x82, 0xC2, 0x12, 0x52, 0x92, 0xD2,
+   0x22, 0x62, 0xA2, 0xE2, 0x32, 0x72, 0xB2, 0xF2,
+   0x06, 0x46, 0x86, 0xC6, 0x16, 0x56, 0x96, 0xD6,
+   0x26, 0x66, 0xA6, 0xE6, 0x36, 0x76, 0xB6, 0xF6,
+   0x0A, 0x4A, 0x8A, 0xCA, 0x1A, 0x5A, 0x9A, 0xDA,
+   0x2A, 0x6A, 0xAA, 0xEA, 0x3A, 0x7A, 0xBA, 0xFA,
+   0x0E, 0x4E, 0x8E, 0xCE, 0x1E, 0x5E, 0x9E, 0xDE,
+   0x2E, 0x6E, 0xAE, 0xEE, 0x3E, 0x7E, 0xBE, 0xFE,
+   0x03, 0x43, 0x83, 0xC3, 0x13, 0x53, 0x93, 0xD3,
+   0x23, 0x63, 0xA3, 0xE3, 0x33, 0x73, 0xB3, 0xF3,
+   0x07, 0x47, 0x87, 0xC7, 0x17, 0x57, 0x97, 0xD7,
+   0x27, 0x67, 0xA7, 0xE7, 0x37, 0x77, 0xB7, 0xF7,
+   0x0B, 0x4B, 0x8B, 0xCB, 0x1B, 0x5B, 0x9B, 0xDB,
+   0x2B, 0x6B, 0xAB, 0xEB, 0x3B, 0x7B, 0xBB, 0xFB,
+   0x0F, 0x4F, 0x8F, 0xCF, 0x1F, 0x5F, 0x9F, 0xDF,
+   0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF
+};
+
+static png_byte fourbppswaptable[256] = {
+   0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70,
+   0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0,
+   0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71,
+   0x81, 0x91, 0xA1, 0xB1, 0xC1, 0xD1, 0xE1, 0xF1,
+   0x02, 0x12, 0x22, 0x32, 0x42, 0x52, 0x62, 0x72,
+   0x82, 0x92, 0xA2, 0xB2, 0xC2, 0xD2, 0xE2, 0xF2,
+   0x03, 0x13, 0x23, 0x33, 0x43, 0x53, 0x63, 0x73,
+   0x83, 0x93, 0xA3, 0xB3, 0xC3, 0xD3, 0xE3, 0xF3,
+   0x04, 0x14, 0x24, 0x34, 0x44, 0x54, 0x64, 0x74,
+   0x84, 0x94, 0xA4, 0xB4, 0xC4, 0xD4, 0xE4, 0xF4,
+   0x05, 0x15, 0x25, 0x35, 0x45, 0x55, 0x65, 0x75,
+   0x85, 0x95, 0xA5, 0xB5, 0xC5, 0xD5, 0xE5, 0xF5,
+   0x06, 0x16, 0x26, 0x36, 0x46, 0x56, 0x66, 0x76,
+   0x86, 0x96, 0xA6, 0xB6, 0xC6, 0xD6, 0xE6, 0xF6,
+   0x07, 0x17, 0x27, 0x37, 0x47, 0x57, 0x67, 0x77,
+   0x87, 0x97, 0xA7, 0xB7, 0xC7, 0xD7, 0xE7, 0xF7,
+   0x08, 0x18, 0x28, 0x38, 0x48, 0x58, 0x68, 0x78,
+   0x88, 0x98, 0xA8, 0xB8, 0xC8, 0xD8, 0xE8, 0xF8,
+   0x09, 0x19, 0x29, 0x39, 0x49, 0x59, 0x69, 0x79,
+   0x89, 0x99, 0xA9, 0xB9, 0xC9, 0xD9, 0xE9, 0xF9,
+   0x0A, 0x1A, 0x2A, 0x3A, 0x4A, 0x5A, 0x6A, 0x7A,
+   0x8A, 0x9A, 0xAA, 0xBA, 0xCA, 0xDA, 0xEA, 0xFA,
+   0x0B, 0x1B, 0x2B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B,
+   0x8B, 0x9B, 0xAB, 0xBB, 0xCB, 0xDB, 0xEB, 0xFB,
+   0x0C, 0x1C, 0x2C, 0x3C, 0x4C, 0x5C, 0x6C, 0x7C,
+   0x8C, 0x9C, 0xAC, 0xBC, 0xCC, 0xDC, 0xEC, 0xFC,
+   0x0D, 0x1D, 0x2D, 0x3D, 0x4D, 0x5D, 0x6D, 0x7D,
+   0x8D, 0x9D, 0xAD, 0xBD, 0xCD, 0xDD, 0xED, 0xFD,
+   0x0E, 0x1E, 0x2E, 0x3E, 0x4E, 0x5E, 0x6E, 0x7E,
+   0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0xDE, 0xEE, 0xFE,
+   0x0F, 0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0x6F, 0x7F,
+   0x8F, 0x9F, 0xAF, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF
+};
+
+/* swaps pixel packing order within bytes */
+void
+png_do_packswap(png_row_infop row_info, png_bytep row)
+{
+   png_debug(1, "in png_do_packswap\n");
+   if (
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+       row != NULL && row_info != NULL &&
+#endif
+       row_info->bit_depth < 8)
+   {
+      png_bytep rp, end, table;
+
+      end = row + row_info->rowbytes;
+
+      if (row_info->bit_depth == 1)
+         table = onebppswaptable;
+      else if (row_info->bit_depth == 2)
+         table = twobppswaptable;
+      else if (row_info->bit_depth == 4)
+         table = fourbppswaptable;
+      else
+         return;
+
+      for (rp = row; rp < end; rp++)
+         *rp = table[*rp];
+   }
+}
+#endif /* PNG_READ_PACKSWAP_SUPPORTED or PNG_WRITE_PACKSWAP_SUPPORTED */
+
+#if defined(PNG_WRITE_FILLER_SUPPORTED) || \
+    defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
+/* remove filler or alpha byte(s) */
+void
+png_do_strip_filler(png_row_infop row_info, png_bytep row, png_uint_32 flags)
+{
+   png_debug(1, "in png_do_strip_filler\n");
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+   if (row != NULL && row_info != NULL)
+#endif
+   {
+/*
+      if (row_info->color_type == PNG_COLOR_TYPE_RGB ||
+          row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+*/
+      png_bytep sp=row;
+      png_bytep dp=row;
+      png_uint_32 row_width=row_info->width;
+      png_uint_32 i;
+
+      if (row_info->channels == 4)
+      {
+         if (row_info->bit_depth == 8)
+         {
+            /* This converts from RGBX or RGBA to RGB */
+            if (flags & PNG_FLAG_FILLER_AFTER)
+            {
+               dp+=3; sp+=4;
+               for (i = 1; i < row_width; i++)
+               {
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  sp++;
+               }
+            }
+            /* This converts from XRGB or ARGB to RGB */
+            else
+            {
+               for (i = 0; i < row_width; i++)
+               {
+                  sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+               }
+            }
+            row_info->pixel_depth = 24;
+            row_info->rowbytes = row_width * 3;
+         }
+         else /* if (row_info->bit_depth == 16) */
+         {
+            if (flags & PNG_FLAG_FILLER_AFTER)
+            {
+               /* This converts from RRGGBBXX or RRGGBBAA to RRGGBB */
+               sp += 8; dp += 6;
+               for (i = 1; i < row_width; i++)
+               {
+                  /* This could be (although memcpy is probably slower):
+                  png_memcpy(dp, sp, 6);
+                  sp += 8;
+                  dp += 6;
+                  */
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  sp += 2;
+               }
+            }
+            else
+            {
+               /* This converts from XXRRGGBB or AARRGGBB to RRGGBB */
+               for (i = 0; i < row_width; i++)
+               {
+                  /* This could be (although memcpy is probably slower):
+                  png_memcpy(dp, sp, 6);
+                  sp += 8;
+                  dp += 6;
+                  */
+                  sp+=2;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+               }
+            }
+            row_info->pixel_depth = 48;
+            row_info->rowbytes = row_width * 6;
+         }
+         row_info->channels = 3;
+         row_info->color_type &= ~PNG_COLOR_MASK_ALPHA;
+      }
+/*
+      else if (row_info->color_type == PNG_COLOR_TYPE_GRAY ||
+               row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+*/
+      else if (row_info->channels == 2)
+      {
+         if (row_info->bit_depth == 8)
+         {
+            /* This converts from GX or GA to G */
+            if (flags & PNG_FLAG_FILLER_AFTER)
+            {
+               for (i = 0; i < row_width; i++)
+               {
+                  *dp++ = *sp++;
+                  sp++;
+               }
+            }
+            /* This converts from XG or AG to G */
+            else
+            {
+               for (i = 0; i < row_width; i++)
+               {
+                  sp++;
+                  *dp++ = *sp++;
+               }
+            }
+            row_info->pixel_depth = 8;
+            row_info->rowbytes = row_width;
+         }
+         else /* if (row_info->bit_depth == 16) */
+         {
+            if (flags & PNG_FLAG_FILLER_AFTER)
+            {
+               /* This converts from GGXX or GGAA to GG */
+               sp += 4; dp += 2;
+               for (i = 1; i < row_width; i++)
+               {
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+                  sp += 2;
+               }
+            }
+            else
+            {
+               /* This converts from XXGG or AAGG to GG */
+               for (i = 0; i < row_width; i++)
+               {
+                  sp += 2;
+                  *dp++ = *sp++;
+                  *dp++ = *sp++;
+               }
+            }
+            row_info->pixel_depth = 16;
+            row_info->rowbytes = row_width * 2;
+         }
+         row_info->channels = 1;
+         row_info->color_type &= ~PNG_COLOR_MASK_ALPHA;
+      }
+   }
+}
+#endif
+
+#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
+/* swaps red and blue bytes within a pixel */
+void
+png_do_bgr(png_row_infop row_info, png_bytep row)
+{
+   png_debug(1, "in png_do_bgr\n");
+   if (
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+       row != NULL && row_info != NULL &&
+#endif
+       (row_info->color_type & PNG_COLOR_MASK_COLOR))
+   {
+      png_uint_32 row_width = row_info->width;
+      if (row_info->bit_depth == 8)
+      {
+         if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+         {
+            png_bytep rp;
+            png_uint_32 i;
+
+            for (i = 0, rp = row; i < row_width; i++, rp += 3)
+            {
+               png_byte save = *rp;
+               *rp = *(rp + 2);
+               *(rp + 2) = save;
+            }
+         }
+         else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+         {
+            png_bytep rp;
+            png_uint_32 i;
+
+            for (i = 0, rp = row; i < row_width; i++, rp += 4)
+            {
+               png_byte save = *rp;
+               *rp = *(rp + 2);
+               *(rp + 2) = save;
+            }
+         }
+      }
+      else if (row_info->bit_depth == 16)
+      {
+         if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+         {
+            png_bytep rp;
+            png_uint_32 i;
+
+            for (i = 0, rp = row; i < row_width; i++, rp += 6)
+            {
+               png_byte save = *rp;
+               *rp = *(rp + 4);
+               *(rp + 4) = save;
+               save = *(rp + 1);
+               *(rp + 1) = *(rp + 5);
+               *(rp + 5) = save;
+            }
+         }
+         else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+         {
+            png_bytep rp;
+            png_uint_32 i;
+
+            for (i = 0, rp = row; i < row_width; i++, rp += 8)
+            {
+               png_byte save = *rp;
+               *rp = *(rp + 4);
+               *(rp + 4) = save;
+               save = *(rp + 1);
+               *(rp + 1) = *(rp + 5);
+               *(rp + 5) = save;
+            }
+         }
+      }
+   }
+}
+#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */
+

src/png/pngwio.c

@@ -0,0 +1,228 @@
+
+/* pngwio.c - functions for data output
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ *
+ * This file provides a location for all output.  Users who need
+ * special handling are expected to write functions that have the same
+ * arguments as these and perform similar functions, but that possibly
+ * use different output methods.  Note that you shouldn't change these
+ * functions, but rather write replacement functions and then change
+ * them at run time with png_set_write_fn(...).
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+/* Write the data to whatever output you are using.  The default routine
+   writes to a file pointer.  Note that this routine sometimes gets called
+   with very small lengths, so you should implement some kind of simple
+   buffering if you are using unbuffered writes.  This should never be asked
+   to write more than 64K on a 16 bit machine.  */
+
+void
+png_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+{
+   if (png_ptr->write_data_fn != NULL )
+      (*(png_ptr->write_data_fn))(png_ptr, data, length);
+   else
+      png_error(png_ptr, "Call to NULL write function");
+}
+
+#if !defined(PNG_NO_STDIO)
+/* This is the function that does the actual writing of data.  If you are
+   not writing to a standard C stream, you should create a replacement
+   write_data function and use it at run time with png_set_write_fn(), rather
+   than changing the library. */
+#ifndef USE_FAR_KEYWORD
+#ifdef __VISAGECPP__
+static void _Optlink
+png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+#else
+static void
+png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+#endif
+{
+   png_uint_32 check;
+
+   check = fwrite(data, 1, length, (FILE *)(png_ptr->io_ptr));
+   if (check != length)
+   {
+      png_error(png_ptr, "Write Error");
+   }
+}
+#else
+/* this is the model-independent version. Since the standard I/O library
+   can't handle far buffers in the medium and small models, we have to copy
+   the data.
+*/
+
+#define NEAR_BUF_SIZE 1024
+#define MIN(a,b) (a <= b ? a : b)
+
+#ifdef __VISAGECPP__
+static void _Optlink
+png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+#else
+static void
+png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+#endif
+{
+   png_uint_32 check;
+   png_byte *near_data;  /* Needs to be "png_byte *" instead of "png_bytep" */
+   FILE *io_ptr;
+
+   /* Check if data really is near. If so, use usual code. */
+   near_data = (png_byte *)CVT_PTR_NOCHECK(data);
+   io_ptr = (FILE *)CVT_PTR(png_ptr->io_ptr);
+   if ((png_bytep)near_data == data)
+   {
+      check = fwrite(near_data, 1, length, io_ptr);
+   }
+   else
+   {
+      png_byte buf[NEAR_BUF_SIZE];
+      png_size_t written, remaining, err;
+      check = 0;
+      remaining = length;
+      do
+      {
+         written = MIN(NEAR_BUF_SIZE, remaining);
+         png_memcpy(buf, data, written); /* copy far buffer to near buffer */
+         err = fwrite(buf, 1, written, io_ptr);
+         if (err != written)
+            break;
+         else
+            check += err;
+         data += written;
+         remaining -= written;
+      }
+      while (remaining != 0);
+   }
+   if (check != length)
+   {
+      png_error(png_ptr, "Write Error");
+   }
+}
+
+#endif
+#endif
+
+/* This function is called to output any data pending writing (normally
+   to disk).  After png_flush is called, there should be no data pending
+   writing in any buffers. */
+#if defined(PNG_WRITE_FLUSH_SUPPORTED)
+void
+png_flush(png_structp png_ptr)
+{
+   if (png_ptr->output_flush_fn != NULL)
+      (*(png_ptr->output_flush_fn))(png_ptr);
+}
+
+#if !defined(PNG_NO_STDIO)
+#ifdef __VISAGECPP__
+static void _Optlink
+png_default_flush(png_structp png_ptr)
+#else
+static void
+png_default_flush(png_structp png_ptr)
+#endif
+{
+   FILE *io_ptr;
+   io_ptr = (FILE *)CVT_PTR((png_ptr->io_ptr));
+   if (io_ptr != NULL)
+      fflush(io_ptr);
+}
+#endif
+#endif
+
+/* This function allows the application to supply new output functions for
+   libpng if standard C streams aren't being used.
+
+   This function takes as its arguments:
+   png_ptr       - pointer to a png output data structure
+   io_ptr        - pointer to user supplied structure containing info about
+                   the output functions.  May be NULL.
+   write_data_fn - pointer to a new output function that takes as its
+                   arguments a pointer to a png_struct, a pointer to
+                   data to be written, and a 32-bit unsigned int that is
+                   the number of bytes to be written.  The new write
+                   function should call png_error(png_ptr, "Error msg")
+                   to exit and output any fatal error messages.
+   flush_data_fn - pointer to a new flush function that takes as its
+                   arguments a pointer to a png_struct.  After a call to
+                   the flush function, there should be no data in any buffers
+                   or pending transmission.  If the output method doesn't do
+                   any buffering of ouput, a function prototype must still be
+                   supplied although it doesn't have to do anything.  If
+                   PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
+                   time, output_flush_fn will be ignored, although it must be
+                   supplied for compatibility. */
+void
+png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
+   png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)
+{
+   png_ptr->io_ptr = io_ptr;
+
+#if !defined(PNG_NO_STDIO)
+   if (write_data_fn != NULL)
+      png_ptr->write_data_fn = write_data_fn;
+   else
+      png_ptr->write_data_fn = png_default_write_data;
+#else
+   png_ptr->write_data_fn = write_data_fn;
+#endif
+
+#if defined(PNG_WRITE_FLUSH_SUPPORTED)
+#if !defined(PNG_NO_STDIO)
+   if (output_flush_fn != NULL)
+      png_ptr->output_flush_fn = output_flush_fn;
+   else
+      png_ptr->output_flush_fn = png_default_flush;
+#else
+   png_ptr->output_flush_fn = output_flush_fn;
+#endif
+#endif /* PNG_WRITE_FLUSH_SUPPORTED */
+
+   /* It is an error to read while writing a png file */
+   if (png_ptr->read_data_fn != NULL)
+   {
+      png_ptr->read_data_fn = NULL;
+      png_warning(png_ptr,
+         "Attempted to set both read_data_fn and write_data_fn in");
+      png_warning(png_ptr,
+         "the same structure.  Resetting read_data_fn to NULL.");
+   }
+}
+
+#if defined(USE_FAR_KEYWORD)
+#if defined(_MSC_VER)
+void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check)
+{
+   void *near_ptr;
+   void FAR *far_ptr;
+   FP_OFF(near_ptr) = FP_OFF(ptr);
+   far_ptr = (void FAR *)near_ptr;
+   if(check != 0)
+      if(FP_SEG(ptr) != FP_SEG(far_ptr))
+         png_error(png_ptr,"segment lost in conversion");
+   return(near_ptr);
+}
+#  else
+void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check)
+{
+   void *near_ptr;
+   void FAR *far_ptr;
+   near_ptr = (void FAR *)ptr;
+   far_ptr = (void FAR *)near_ptr;
+   if(check != 0)
+      if(far_ptr != ptr)
+         png_error(png_ptr,"segment lost in conversion");
+   return(near_ptr);
+}
+#   endif
+#   endif

src/png/pngwtran.c

@@ -0,0 +1,497 @@
+
+/* pngwtran.c - transforms the data in a row for PNG writers
+ *
+ * libpng 1.0.3 - January 14, 1999
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1996, 1997 Andreas Dilger
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+/* Transform the data according to the user's wishes.  The order of
+ * transformations is significant.
+ */
+void
+png_do_write_transformations(png_structp png_ptr)
+{
+   png_debug(1, "in png_do_write_transformations\n");
+
+#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
+   if (png_ptr->transformations & PNG_USER_TRANSFORM)
+      if(png_ptr->write_user_transform_fn != NULL)
+        (*(png_ptr->write_user_transform_fn)) /* user write transform function */
+          (png_ptr,                    /* png_ptr */
+           &(png_ptr->row_info),       /* row_info:     */
+             /*  png_uint_32 width;          width of row */
+             /*  png_uint_32 rowbytes;       number of bytes in row */
+             /*  png_byte color_type;        color type of pixels */
+             /*  png_byte bit_depth;         bit depth of samples */
+             /*  png_byte channels;          number of channels (1-4) */
+             /*  png_byte pixel_depth;       bits per pixel (depth*channels) */
+           png_ptr->row_buf + 1);      /* start of pixel data for row */
+#endif
+#if defined(PNG_WRITE_FILLER_SUPPORTED)
+   if (png_ptr->transformations & PNG_FILLER)
+      png_do_strip_filler(&(png_ptr->row_info), png_ptr->row_buf + 1,
+         png_ptr->flags);
+#endif
+#if defined(PNG_WRITE_PACKSWAP_SUPPORTED)
+   if (png_ptr->transformations & PNG_PACKSWAP)
+      png_do_packswap(&(png_ptr->row_info), png_ptr->row_buf + 1);
+#endif
+#if defined(PNG_WRITE_PACK_SUPPORTED)
+   if (png_ptr->transformations & PNG_PACK)
+      png_do_pack(&(png_ptr->row_info), png_ptr->row_buf + 1,
+         (png_uint_32)png_ptr->bit_depth);
+#endif
+#if defined(PNG_WRITE_SWAP_SUPPORTED)
+   if (png_ptr->transformations & PNG_SWAP_BYTES)
+      png_do_swap(&(png_ptr->row_info), png_ptr->row_buf + 1);
+#endif
+#if defined(PNG_WRITE_SHIFT_SUPPORTED)
+   if (png_ptr->transformations & PNG_SHIFT)
+      png_do_shift(&(png_ptr->row_info), png_ptr->row_buf + 1,
+         &(png_ptr->shift));
+#endif
+#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
+   if (png_ptr->transformations & PNG_INVERT_ALPHA)
+      png_do_write_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
+#endif
+#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
+   if (png_ptr->transformations & PNG_SWAP_ALPHA)
+      png_do_write_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
+#endif
+#if defined(PNG_WRITE_BGR_SUPPORTED)
+   if (png_ptr->transformations & PNG_BGR)
+      png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1);
+#endif
+#if defined(PNG_WRITE_INVERT_SUPPORTED)
+   if (png_ptr->transformations & PNG_INVERT_MONO)
+      png_do_invert(&(png_ptr->row_info), png_ptr->row_buf + 1);
+#endif
+}
+
+#if defined(PNG_WRITE_PACK_SUPPORTED)
+/* Pack pixels into bytes.  Pass the true bit depth in bit_depth.  The
+ * row_info bit depth should be 8 (one pixel per byte).  The channels
+ * should be 1 (this only happens on grayscale and paletted images).
+ */
+void
+png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)
+{
+   png_debug(1, "in png_do_pack\n");
+   if (row_info->bit_depth == 8 &&
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+       row != NULL && row_info != NULL &&
+#endif
+      row_info->channels == 1)
+   {
+      switch ((int)bit_depth)
+      {
+         case 1:
+         {
+            png_bytep sp, dp;
+            int mask, v;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            sp = row;
+            dp = row;
+            mask = 0x80;
+            v = 0;
+
+            for (i = 0; i < row_width; i++)
+            {
+               if (*sp != 0)
+                  v |= mask;
+               sp++;
+               if (mask > 1)
+                  mask >>= 1;
+               else
+               {
+                  mask = 0x80;
+                  *dp = (png_byte)v;
+                  dp++;
+                  v = 0;
+               }
+            }
+            if (mask != 0x80)
+               *dp = (png_byte)v;
+            break;
+         }
+         case 2:
+         {
+            png_bytep sp, dp;
+            int shift, v;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            sp = row;
+            dp = row;
+            shift = 6;
+            v = 0;
+            for (i = 0; i < row_width; i++)
+            {
+               png_byte value;
+
+               value = (png_byte)(*sp & 0x3);
+               v |= (value << shift);
+               if (shift == 0)
+               {
+                  shift = 6;
+                  *dp = (png_byte)v;
+                  dp++;
+                  v = 0;
+               }
+               else
+                  shift -= 2;
+               sp++;
+            }
+            if (shift != 6)
+               *dp = (png_byte)v;
+            break;
+         }
+         case 4:
+         {
+            png_bytep sp, dp;
+            int shift, v;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            sp = row;
+            dp = row;
+            shift = 4;
+            v = 0;
+            for (i = 0; i < row_width; i++)
+            {
+               png_byte value;
+
+               value = (png_byte)(*sp & 0xf);
+               v |= (value << shift);
+
+               if (shift == 0)
+               {
+                  shift = 4;
+                  *dp = (png_byte)v;
+                  dp++;
+                  v = 0;
+               }
+               else
+                  shift -= 4;
+
+               sp++;
+            }
+            if (shift != 4)
+               *dp = (png_byte)v;
+            break;
+         }
+      }
+      row_info->bit_depth = (png_byte)bit_depth;
+      row_info->pixel_depth = (png_byte)(bit_depth * row_info->channels);
+      row_info->rowbytes =
+         ((row_info->width * row_info->pixel_depth + 7) >> 3);
+   }
+}
+#endif
+
+#if defined(PNG_WRITE_SHIFT_SUPPORTED)
+/* Shift pixel values to take advantage of whole range.  Pass the
+ * true number of bits in bit_depth.  The row should be packed
+ * according to row_info->bit_depth.  Thus, if you had a row of
+ * bit depth 4, but the pixels only had values from 0 to 7, you
+ * would pass 3 as bit_depth, and this routine would translate the
+ * data to 0 to 15.
+ */
+void
+png_do_shift(png_row_infop row_info, png_bytep row, png_color_8p bit_depth)
+{
+   png_debug(1, "in png_do_shift\n");
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+   if (row != NULL && row_info != NULL &&
+#else
+   if (
+#endif
+      row_info->color_type != PNG_COLOR_TYPE_PALETTE)
+   {
+      int shift_start[4], shift_dec[4];
+      int channels = 0;
+
+      if (row_info->color_type & PNG_COLOR_MASK_COLOR)
+      {
+         shift_start[channels] = row_info->bit_depth - bit_depth->red;
+         shift_dec[channels] = bit_depth->red;
+         channels++;
+         shift_start[channels] = row_info->bit_depth - bit_depth->green;
+         shift_dec[channels] = bit_depth->green;
+         channels++;
+         shift_start[channels] = row_info->bit_depth - bit_depth->blue;
+         shift_dec[channels] = bit_depth->blue;
+         channels++;
+      }
+      else
+      {
+         shift_start[channels] = row_info->bit_depth - bit_depth->gray;
+         shift_dec[channels] = bit_depth->gray;
+         channels++;
+      }
+      if (row_info->color_type & PNG_COLOR_MASK_ALPHA)
+      {
+         shift_start[channels] = row_info->bit_depth - bit_depth->alpha;
+         shift_dec[channels] = bit_depth->alpha;
+         channels++;
+      }
+
+      /* with low row depths, could only be grayscale, so one channel */
+      if (row_info->bit_depth < 8)
+      {
+         png_bytep bp = row;
+         png_uint_32 i;
+         png_byte mask;
+         png_uint_32 row_bytes = row_info->rowbytes;
+
+         if (bit_depth->gray == 1 && row_info->bit_depth == 2)
+            mask = 0x55;
+         else if (row_info->bit_depth == 4 && bit_depth->gray == 3)
+            mask = 0x11;
+         else
+            mask = 0xff;
+
+         for (i = 0; i < row_bytes; i++, bp++)
+         {
+            png_uint_16 v;
+            int j;
+
+            v = *bp;
+            *bp = 0;
+            for (j = shift_start[0]; j > -shift_dec[0]; j -= shift_dec[0])
+            {
+               if (j > 0)
+                  *bp |= (png_byte)((v << j) & 0xff);
+               else
+                  *bp |= (png_byte)((v >> (-j)) & mask);
+            }
+         }
+      }
+      else if (row_info->bit_depth == 8)
+      {
+         png_bytep bp = row;
+         png_uint_32 i;
+         png_uint_32 istop = channels * row_info->width;
+
+         for (i = 0; i < istop; i++, bp++)
+         {
+
+            png_uint_16 v;
+            int j;
+            int c = (int)(i%channels);
+
+            v = *bp;
+            *bp = 0;
+            for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c])
+            {
+               if (j > 0)
+                  *bp |= (png_byte)((v << j) & 0xff);
+               else
+                  *bp |= (png_byte)((v >> (-j)) & 0xff);
+            }
+         }
+      }
+      else
+      {
+         png_bytep bp;
+         png_uint_32 i;
+         png_uint_32 istop = channels * row_info->width;
+
+         for (bp = row, i = 0; i < istop; i++)
+         {
+            int c = (int)(i%channels);
+            png_uint_16 value, v;
+            int j;
+
+            v = ((png_uint_16)(*bp) << 8) + *(bp + 1);
+            value = 0;
+            for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c])
+            {
+               if (j > 0)
+                  value |= (png_uint_16)((v << j) & (png_uint_16)0xffff);
+               else
+                  value |= (png_uint_16)((v >> (-j)) & (png_uint_16)0xffff);
+            }
+            *bp++ = (png_byte)(value >> 8);
+            *bp++ = (png_byte)(value & 0xff);
+         }
+      }
+   }
+}
+#endif
+
+#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
+void
+png_do_write_swap_alpha(png_row_infop row_info, png_bytep row)
+{
+   png_debug(1, "in png_do_write_swap_alpha\n");
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+   if (row != NULL && row_info != NULL)
+#endif
+   {
+      if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+      {
+         /* This converts from ARGB to RGBA */
+         if (row_info->bit_depth == 8)
+         {
+            png_bytep sp, dp;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+            for (i = 0, sp = dp = row; i < row_width; i++)
+            {
+               png_byte save = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = save;
+            }
+         }
+         /* This converts from AARRGGBB to RRGGBBAA */
+         else
+         {
+            png_bytep sp, dp;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            for (i = 0, sp = dp = row; i < row_width; i++)
+            {
+               png_byte save[2];
+               save[0] = *(sp++);
+               save[1] = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = save[0];
+               *(dp++) = save[1];
+            }
+         }
+      }
+      else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+      {
+         /* This converts from AG to GA */
+         if (row_info->bit_depth == 8)
+         {
+            png_bytep sp, dp;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            for (i = 0, sp = dp = row; i < row_width; i++)
+            {
+               png_byte save = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = save;
+            }
+         }
+         /* This converts from AAGG to GGAA */
+         else
+         {
+            png_bytep sp, dp;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            for (i = 0, sp = dp = row; i < row_width; i++)
+            {
+               png_byte save[2];
+               save[0] = *(sp++);
+               save[1] = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = save[0];
+               *(dp++) = save[1];
+            }
+         }
+      }
+   }
+}
+#endif
+
+#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
+void
+png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
+{
+   png_debug(1, "in png_do_write_invert_alpha\n");
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+   if (row != NULL && row_info != NULL)
+#endif
+   {
+      if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+      {
+         /* This inverts the alpha channel in RGBA */
+         if (row_info->bit_depth == 8)
+         {
+            png_bytep sp, dp;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+            for (i = 0, sp = dp = row; i < row_width; i++)
+            {
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = 255 - *(sp++);
+            }
+         }
+         /* This inverts the alpha channel in RRGGBBAA */
+         else
+         {
+            png_bytep sp, dp;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            for (i = 0, sp = dp = row; i < row_width; i++)
+            {
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = 255 - *(sp++);
+               *(dp++) = 255 - *(sp++);
+            }
+         }
+      }
+      else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+      {
+         /* This inverts the alpha channel in GA */
+         if (row_info->bit_depth == 8)
+         {
+            png_bytep sp, dp;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            for (i = 0, sp = dp = row; i < row_width; i++)
+            {
+               *(dp++) = *(sp++);
+               *(dp++) = 255 - *(sp++);
+            }
+         }
+         /* This inverts the alpha channel in GGAA */
+         else
+         {
+            png_bytep sp, dp;
+            png_uint_32 i;
+            png_uint_32 row_width = row_info->width;
+
+            for (i = 0, sp = dp = row; i < row_width; i++)
+            {
+               *(dp++) = *(sp++);
+               *(dp++) = *(sp++);
+               *(dp++) = 255 - *(sp++);
+               *(dp++) = 255 - *(sp++);
+            }
+         }
+      }
+   }
+}
+#endif

src/png/scripts/SCOPTIONS.ppc

@@ -0,0 +1,7 @@
+OPTIMIZE
+OPTPEEP
+OPTTIME
+OPTSCHED
+AUTOREGISTER
+PARMS=REGISTERS
+INCLUDEDIR=hlp:ppc/include

src/png/scripts/build.bat

@@ -0,0 +1,2 @@
+make -fmakefile.bor -B -DMODEL=m %1 %2 %3 libpng >buildm.out
+make -fmakefile.bor -B -DMODEL=l %1 %2 %3 libpng >buildl.out

src/png/scripts/descrip.mms

@@ -0,0 +1,52 @@
+
+cc_defs = /inc=$(ZLIBSRC)
+c_deb = 
+
+.ifdef __DECC__
+pref = /prefix=all
+.endif
+
+
+
+OBJS = png.obj, pngset.obj, pngget.obj, pngrutil.obj, pngtrans.obj,\
+	pngwutil.obj, pngread.obj, pngmem.obj, pngwrite.obj, pngrtran.obj,\
+	pngwtran.obj, pngrio.obj, pngwio.obj, pngerror.obj, pngpread.obj
+
+
+CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
+
+all : pngtest.exe libpng.olb
+		@ write sys$output " pngtest available"
+
+libpng.olb : libpng.olb($(OBJS))
+	@ write sys$output " Libpng available"
+
+
+pngtest.exe : pngtest.obj libpng.olb
+              link pngtest,libpng.olb/lib,$(ZLIBSRC)libz.olb/lib
+
+test : pngtest.exe
+   run pngtest
+
+clean :
+	delete *.obj;*,*.exe;*
+
+
+# Other dependencies.
+png.obj : png.h, pngconf.h
+pngpread.obj : png.h, pngconf.h
+pngset.obj : png.h, pngconf.h
+pngget.obj : png.h, pngconf.h
+pngread.obj : png.h, pngconf.h
+pngrtran.obj : png.h, pngconf.h
+pngrutil.obj : png.h, pngconf.h
+pngerror.obj : png.h, pngconf.h
+pngmem.obj : png.h, pngconf.h
+pngrio.obj : png.h, pngconf.h
+pngwio.obj : png.h, pngconf.h
+pngtest.obj : png.h, pngconf.h
+pngtrans.obj : png.h, pngconf.h
+pngwrite.obj : png.h, pngconf.h
+pngwtran.obj : png.h, pngconf.h
+pngwutil.obj : png.h, pngconf.h
+

src/png/scripts/makefile.aco

@@ -0,0 +1,221 @@
+# Project:   libpng
+
+
+# Toolflags:
+CCflags = -c -depend !Depend -IC:,Zlib: -g -throwback  -DRISCOS  -fnah 
+C++flags = -c -depend !Depend -IC: -throwback
+Linkflags = -aif -c++ -o $@
+ObjAsmflags = -throwback -NoCache -depend !Depend
+CMHGflags = 
+LibFileflags = -c -l -o $@ 
+Squeezeflags = -o $@
+
+
+# Final targets:
+@.libpng-lib:   @.o.png @.o.pngerror @.o.pngrio @.o.pngwio @.o.pngmem \
+        @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngrtran \
+        @.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil 
+        LibFile $(LibFileflags) @.o.png @.o.pngerror @.o.pngrio @.o.pngrtran \
+        @.o.pngmem @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngwio \
+        @.o.pngrutil @.o.pngtrans  @.o.pngwrite @.o.pngwtran @.o.pngwutil 
+@.mm-libpng-lib:   @.mm.png @.mm.pngerror @.mm.pngrio @.mm.pngwio @.mm.pngmem \
+        @.mm.pngpread @.mm.pngset @.mm.pngget @.mm.pngread @.mm.pngrtran \
+        @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite @.mm.pngwtran @.mm.pngwutil 
+        LibFile $(LibFileflags) @.mm.png @.mm.pngerror @.mm.pngrio \
+        @.mm.pngwio @.mm.pngmem @.mm.pngpread @.mm.pngset @.mm.pngget \
+        @.mm.pngread @.mm.pngrtran @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite \
+        @.mm.pngwtran @.mm.pngwutil 
+
+
+# User-editable dependencies:
+# (C) Copyright 1997 Tom Tanner
+Test: @.pngtest 
+        <Prefix$Dir>.pngtest
+        @remove <Prefix$Dir>.pngtest
+
+#It would be nice if you could stop "make" listing from here on!
+@.pngtest:   @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib 
+        Link $(Linkflags) @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib 
+
+.SUFFIXES: .o .mm .c
+
+.c.mm:
+        MemCheck.CC cc $(ccflags) -o $@ LibPng:$<
+.c.o:
+        cc $(ccflags) -o $@ $<
+
+
+# Static dependencies:
+
+
+# Dynamic dependencies:
+o.pngtest:	c.pngtest
+o.pngtest:	h.png
+o.pngtest:	Zlib:h.zlib
+o.pngtest:	Zlib:h.zconf
+o.pngtest:	h.pngconf
+mm.png:		LibPng:c.png
+mm.png:		LibPng:h.png
+mm.png:		Zlib:h.zlib
+mm.png:		Zlib:h.zconf
+mm.png:		LibPng:h.pngconf
+mm.png:		MemCheck:ANSI.h.stdio
+mm.pngerror:	LibPng:c.pngerror
+mm.pngerror:	LibPng:h.png
+mm.pngerror:	Zlib:h.zlib
+mm.pngerror:	Zlib:h.zconf
+mm.pngerror:	LibPng:h.pngconf
+mm.pngerror:	MemCheck:ANSI.h.stdio
+mm.pngrio:	LibPng:c.pngrio
+mm.pngrio:	LibPng:h.png
+mm.pngrio:	Zlib:h.zlib
+mm.pngrio:	Zlib:h.zconf
+mm.pngrio:	LibPng:h.pngconf
+mm.pngrio:	MemCheck:ANSI.h.stdio
+mm.pngwio:	LibPng:c.pngwio
+mm.pngwio:	LibPng:h.png
+mm.pngwio:	Zlib:h.zlib
+mm.pngwio:	Zlib:h.zconf
+mm.pngwio:	LibPng:h.pngconf
+mm.pngwio:	MemCheck:ANSI.h.stdio
+mm.pngmem:	LibPng:c.pngmem
+mm.pngmem:	LibPng:h.png
+mm.pngmem:	Zlib:h.zlib
+mm.pngmem:	Zlib:h.zconf
+mm.pngmem:	LibPng:h.pngconf
+mm.pngmem:	MemCheck:ANSI.h.stdio
+mm.pngpread:	LibPng:c.pngpread
+mm.pngpread:	LibPng:h.png
+mm.pngpread:	Zlib:h.zlib
+mm.pngpread:	Zlib:h.zconf
+mm.pngpread:	LibPng:h.pngconf
+mm.pngpread:	MemCheck:ANSI.h.stdio
+mm.pngset:	LibPng:c.pngset
+mm.pngset:	LibPng:h.png
+mm.pngset:	Zlib:h.zlib
+mm.pngset:	Zlib:h.zconf
+mm.pngset:	LibPng:h.pngconf
+mm.pngset:	MemCheck:ANSI.h.stdio
+mm.pngget:	LibPng:c.pngget
+mm.pngget:	LibPng:h.png
+mm.pngget:	Zlib:h.zlib
+mm.pngget:	Zlib:h.zconf
+mm.pngget:	LibPng:h.pngconf
+mm.pngget:	MemCheck:ANSI.h.stdio
+mm.pngread:	LibPng:c.pngread
+mm.pngread:	LibPng:h.png
+mm.pngread:	Zlib:h.zlib
+mm.pngread:	Zlib:h.zconf
+mm.pngread:	LibPng:h.pngconf
+mm.pngread:	MemCheck:ANSI.h.stdio
+mm.pngrtran:	LibPng:c.pngrtran
+mm.pngrtran:	LibPng:h.png
+mm.pngrtran:	Zlib:h.zlib
+mm.pngrtran:	Zlib:h.zconf
+mm.pngrtran:	LibPng:h.pngconf
+mm.pngrtran:	MemCheck:ANSI.h.stdio
+mm.pngrutil:	LibPng:c.pngrutil
+mm.pngrutil:	LibPng:h.png
+mm.pngrutil:	Zlib:h.zlib
+mm.pngrutil:	Zlib:h.zconf
+mm.pngrutil:	LibPng:h.pngconf
+mm.pngrutil:	MemCheck:ANSI.h.stdio
+mm.pngtrans:	LibPng:c.pngtrans
+mm.pngtrans:	LibPng:h.png
+mm.pngtrans:	Zlib:h.zlib
+mm.pngtrans:	Zlib:h.zconf
+mm.pngtrans:	LibPng:h.pngconf
+mm.pngtrans:	MemCheck:ANSI.h.stdio
+mm.pngwrite:	LibPng:c.pngwrite
+mm.pngwrite:	LibPng:h.png
+mm.pngwrite:	Zlib:h.zlib
+mm.pngwrite:	Zlib:h.zconf
+mm.pngwrite:	LibPng:h.pngconf
+mm.pngwrite:	MemCheck:ANSI.h.stdio
+mm.pngwtran:	LibPng:c.pngwtran
+mm.pngwtran:	LibPng:h.png
+mm.pngwtran:	Zlib:h.zlib
+mm.pngwtran:	Zlib:h.zconf
+mm.pngwtran:	LibPng:h.pngconf
+mm.pngwtran:	MemCheck:ANSI.h.stdio
+mm.pngwutil:	LibPng:c.pngwutil
+mm.pngwutil:	LibPng:h.png
+mm.pngwutil:	Zlib:h.zlib
+mm.pngwutil:	Zlib:h.zconf
+mm.pngwutil:	LibPng:h.pngconf
+mm.pngwutil:	MemCheck:ANSI.h.stdio
+o.png:		c.png
+o.png:		h.png
+o.png:		Zlib:h.zlib
+o.png:		Zlib:h.zconf
+o.png:		h.pngconf
+o.pngerror:	c.pngerror
+o.pngerror:	h.png
+o.pngerror:	Zlib:h.zlib
+o.pngerror:	Zlib:h.zconf
+o.pngerror:	h.pngconf
+o.pngrio:	c.pngrio
+o.pngrio:	h.png
+o.pngrio:	Zlib:h.zlib
+o.pngrio:	Zlib:h.zconf
+o.pngrio:	h.pngconf
+o.pngwio:	c.pngwio
+o.pngwio:	h.png
+o.pngwio:	Zlib:h.zlib
+o.pngwio:	Zlib:h.zconf
+o.pngwio:	h.pngconf
+o.pngmem:	c.pngmem
+o.pngmem:	h.png
+o.pngmem:	Zlib:h.zlib
+o.pngmem:	Zlib:h.zconf
+o.pngmem:	h.pngconf
+o.pngpread:	c.pngpread
+o.pngpread:	h.png
+o.pngpread:	Zlib:h.zlib
+o.pngpread:	Zlib:h.zconf
+o.pngpread:	h.pngconf
+o.pngset:	c.pngset
+o.pngset:	h.png
+o.pngset:	Zlib:h.zlib
+o.pngset:	Zlib:h.zconf
+o.pngset:	h.pngconf
+o.pngget:	c.pngget
+o.pngget:	h.png
+o.pngget:	Zlib:h.zlib
+o.pngget:	Zlib:h.zconf
+o.pngget:	h.pngconf
+o.pngread:	c.pngread
+o.pngread:	h.png
+o.pngread:	Zlib:h.zlib
+o.pngread:	Zlib:h.zconf
+o.pngread:	h.pngconf
+o.pngrtran:	c.pngrtran
+o.pngrtran:	h.png
+o.pngrtran:	Zlib:h.zlib
+o.pngrtran:	Zlib:h.zconf
+o.pngrtran:	h.pngconf
+o.pngrutil:	c.pngrutil
+o.pngrutil:	h.png
+o.pngrutil:	Zlib:h.zlib
+o.pngrutil:	Zlib:h.zconf
+o.pngrutil:	h.pngconf
+o.pngtrans:	c.pngtrans
+o.pngtrans:	h.png
+o.pngtrans:	Zlib:h.zlib
+o.pngtrans:	Zlib:h.zconf
+o.pngtrans:	h.pngconf
+o.pngwrite:	c.pngwrite
+o.pngwrite:	h.png
+o.pngwrite:	Zlib:h.zlib
+o.pngwrite:	Zlib:h.zconf
+o.pngwrite:	h.pngconf
+o.pngwtran:	c.pngwtran
+o.pngwtran:	h.png
+o.pngwtran:	Zlib:h.zlib
+o.pngwtran:	Zlib:h.zconf
+o.pngwtran:	h.pngconf
+o.pngwutil:	c.pngwutil
+o.pngwutil:	h.png
+o.pngwutil:	Zlib:h.zlib
+o.pngwutil:	Zlib:h.zconf
+o.pngwutil:	h.pngconf

src/png/scripts/makefile.ama

@@ -0,0 +1,42 @@
+# Commodore Amiga Makefile
+# makefile for libpng and SAS C V6.55 compiler
+# Copyright (C) 1995 Wolf Faust
+
+#compiler
+CC=sc
+#compiler flags
+# WARNING: a bug in V6.51 causes bad code with OPTGO
+#          So use V6.55 or set NOOPTGO!!!!!!!!!
+CFLAGS= NOSTKCHK PARMS=REG OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL\
+        OPTLOOP OPTRDEP=4 OPTDEP=4 OPTCOMP=4 DEFINE=PNG_INTERNAL
+#linker flags
+LDFLAGS= SD ND BATCH
+#link libs
+LDLIBS= libpng.lib libgz.lib LIB:scm.lib LIB:sc.lib Lib:amiga.lib
+# linker
+LN= slink
+# file deletion command
+RM= delete quiet
+# library (.lib) file creation command
+AR= oml
+# make directory command
+MKDIR= makedir
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o pngpread.o \
+pngread.o pngerror.o pngwrite.o pngrtran.o pngwtran.o pngrio.o pngwio.o pngmem.o
+
+all: libpng.lib pngtest
+
+libpng.lib: $(OBJS)
+-$(RM) libpng.lib
+$(AR) libpng.lib r $(OBJS)
+
+pngtest: pngtest.o libpng.lib
+$(LN) <WITH <
+$(LDFLAGS)
+TO pngtest
+FROM LIB:c.o pngtest.o
+LIB $(LDLIBS)
+<
+
+

src/png/scripts/makefile.atr

@@ -0,0 +1,31 @@
+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+# modified for LC56/ATARI assumes libz.lib is in same dir and uses default
+# rules for library management
+#
+CFLAGS=-I..\zlib -O
+LBR = png.lib
+LDFLAGS=-lpng -lz -lm
+
+# where make install puts libpng.a and png.h
+
+OBJS = $(LBR)(png.o) $(LBR)(pngset.o) $(LBR)(pngget.o) $(LBR)(pngrutil.o)\
+	$(LBR)(pngtrans.o) $(LBR)(pngwutil.o)\
+	$(LBR)(pngread.o) $(LBR)(pngerror.o) $(LBR)(pngwrite.o)\
+	$(LBR)(pngrtran.o) $(LBR)(pngwtran.o)\
+	$(LBR)(pngmem.o) $(LBR)(pngrio.o) $(LBR)(pngwio.o) $(LBR)(pngpread.o)
+
+all: $(LBR) pngtest.ttp
+
+$(LBR): $(OBJS)
+
+pngtest.ttp: pngtest.o $(LBR)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o$@ pngtest.o
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/p

src/png/scripts/makefile.bor

@@ -0,0 +1,168 @@
+# Makefile for libpng
+# Borland C++ 4.5 (Note: All modules are compiled in C mode)
+# Will work with C++ 4.02 also
+# To build the library, do: 
+#       "make -fmakefile.bor -DMODEL=m"
+# or:   "make -fmakefile.bor -DMODEL=l"
+#
+# ------------- Borland C++ 4.5 -------------
+
+### Absolutely necessary for this makefile to work
+.AUTODEPEND
+
+## Useful user options
+
+# Usually defined in builtins.mak or the environment
+# Currently unused.
+!ifndef BCROOT
+BCROOT=N:\BC45
+!endif
+
+# Where zlib.h and zconf.h and zlib.lib are
+ZLIB_PATH=..\zlib
+
+!ifndef MODEL
+MODEL=l
+!endif
+
+#TARGET_CPU=3
+# 2 = 286, 3 = 386, etc.
+!ifndef TARGET_CPU
+TARGET_CPU=2
+!endif
+
+
+# Use this if you don't want Borland's fancy exception handling.
+NOEHLIB=noeh$(MODEL).lib
+
+!ifdef DEBUG
+CDEBUG=-v
+LDEBUG=-v
+!else
+CDEBUG=
+LDEBUG=
+!endif
+
+# STACKOFLOW=1
+!ifdef STACKOFLOW
+CDEBUG=$(CDEBUG) -N
+LDEBUG=$(LDEBUG) -N
+!endif
+
+
+## Compiler, linker, and lib stuff
+CC=bcc
+LD=bcc
+LIB=tlib
+
+MODELARG=-m$(MODEL)
+
+# -X- turns on dependency generation in the object file
+# -w  sets all warnings on
+# -O2 optimize for speed
+# -Z  global optimization
+CFLAGS=-O2 -Z -X- -w -I$(ZLIB_PATH) -$(TARGET_CPU) $(MODELARG) $(CDEBUG)
+
+# -M  generate map file
+LDFLAGS=-M $(LDEBUG)
+
+O=obj
+
+## variables
+OBJS = \
+ png.$(O) \
+ pngerror.$(O) \
+ pngmem.$(O) \
+ pngpread.$(O) \
+ pngset.$(O) \
+ pngget.$(O) \
+ pngread.$(O) \
+ pngrio.$(O) \
+ pngrtran.$(O) \
+ pngrutil.$(O) \
+ pngtrans.$(O) \
+ pngwrite.$(O) \
+ pngwtran.$(O) \
+ pngwio.$(O) \
+ pngwutil.$(O)
+
+LIBOBJS = \
+ +png.$(O) \
+ +pngerror.$(O) \
+ +pngmem.$(O) \
+ +pngpread.$(O) \
+ +pngread.$(O) \
+ +pngset.$(O) \
+ +pngget.$(O) \
+ +pngrio.$(O) \
+ +pngrtran.$(O) \
+ +pngrutil.$(O) \
+ +pngtrans.$(O) \
+ +pngwrite.$(O) \
+ +pngwtran.$(O) \
+ +pngwio.$(O)
+ +pngwutil.$(O)
+
+LIBNAME=libpng$(MODEL).lib
+
+
+## Implicit rules
+# Braces let make "batch" calls to the compiler,
+# 2 calls instead of 12; space is important.
+.c.obj:
+	$(CC) $(CFLAGS) -c {$*.c }
+
+.c.exe:
+	$(CC) $(CFLAGS) $(LDFLAGS) $*.c
+
+
+## Major targets
+libpng: $(LIBNAME)
+
+pngtest: pngtest$(MODEL).exe
+
+test:
+	pngtest$(MODEL)
+
+
+## Minor Targets
+
+png.obj: png.c
+pngset.obj: pngset.c
+pngget.obj: pngget.c
+pngread.obj: pngread.c
+pngpread.obj: pngpread.c
+pngrtran.obj: pngrtran.c
+pngrutil.obj: pngrutil.c
+pngerror.obj: pngerror.c
+pngmem.obj: pngmem.c
+pngrio.obj: pngrio.c
+pngwio.obj: pngwio.c
+pngtrans.obj: pngtrans.c
+pngwrite.obj: pngwrite.c
+pngwtran.obj: pngwtran.c
+pngwutil.obj: pngwutil.c
+
+
+$(LIBNAME): $(OBJS)
+	-del $(LIBNAME)
+        $(LIB) $(LIBNAME) @&&|
+$(LIBOBJS), libpng$(MODEL)
+|
+
+
+pngtest$(MODEL).obj: pngtest.c
+	$(CC) $(CFLAGS) -opngtest$(MODEL) -c pngtest.c
+
+pngtest$(MODEL).exe: pngtest$(MODEL).obj
+	$(CC) $(MODELARG) $(LDFLAGS) -L$(ZLIB_PATH) pngtest$(MODEL).obj $(LIBNAME) zlib$(MODEL).lib $(NOEHLIB)
+
+
+# Clean up anything else you want
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.lst
+
+
+# End of makefile for libpng

src/png/scripts/makefile.dec

@@ -0,0 +1,68 @@
+# makefile for libpng on DEC Alpha Unix
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+CC=cc
+CFLAGS=-std -w1 -I$(ZLIBINC) -O # -g -DPNG_DEBUG=1
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+
+#RANLIB=echo
+RANLIB=ranlib
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/png.h
+	chmod 644 $(prefix)/include/pngconf.h
+	cp libpng.a $(prefix)/lib
+	chmod 644 $(prefix)/lib/libpng.a
+
+clean:
+	rm -f *.o libpng.a pngtest pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+

src/png/scripts/makefile.dj2

@@ -0,0 +1,52 @@
+# DJGPP (DOS gcc) makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=gcc
+CFLAGS=-I../zlib -O
+LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
+
+RANLIB=ranlib
+
+# where make install puts libpng.a and png.h
+#prefix=/usr/local
+prefix=.
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o pngwtran.o \
+	pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+	coff2exe pngtest
+
+test: pngtest
+	./pngtest
+clean:
+	rm -f *.o libpng.a pngtest pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+

src/png/scripts/makefile.knr

@@ -0,0 +1,73 @@
+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=cc
+CFLAGS=-I../zlib -O
+LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
+# flags for ansi2knr
+ANSI2KNRFLAGS=
+
+RANLIB=ranlib
+#RANLIB=echo
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: ansi2knr libpng.a pngtest
+
+# general rule to allow ansi2knr to work
+.c.o:
+	./ansi2knr $*.c T$*.c
+	$(CC) $(CFLAGS) -c T$*.c
+	rm -f T$*.c $*.o
+	mv T$*.o $*.o
+
+ansi2knr: ansi2knr.c
+	$(CC) $(CFLAGS) $(ANSI2KNRFLAGS) -o ansi2knr ansi2knr.c
+
+libpng.a: ansi2knr $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/png.h
+	chmod 644 $(prefix)/include/pngconf.h
+	cp libpng.a $(prefix)/lib
+	chmod 644 $(prefix)/lib/libpng.a
+
+clean:
+	rm -f *.o libpng.a pngtest pngout.png ansi2knr
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h

src/png/scripts/makefile.lnx

@@ -0,0 +1,99 @@
+# makefile for libpng on Linux ELF with gcc
+# Copyright (C) 1996, 1997 Andreas Dilger
+# Copyright (C) 1998 Greg Roelofs
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=gcc
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+         -Wmissing-declarations -Wtraditional -Wcast-align \
+         -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops -malign-loops=2 \
+       -malign-functions=2 #$(WARNMORE) -g -DPNG_DEBUG=5
+LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz -lm
+
+RANLIB=ranlib
+#RANLIB=echo
+
+# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
+# have to change it.
+PNGMAJ = 2
+PNGMIN = 1.0
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# where make install puts libpng.a, libpng.so*, and png.h
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+       pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+       pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES:      .c .o .pic.o
+
+.c.pic.o:
+	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+
+all: libpng.a libpng.so pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@ $(OBJS)
+	$(RANLIB) $@
+
+libpng.so: libpng.so.$(PNGMAJ)
+	ln -sf libpng.so.$(PNGMAJ) libpng.so
+
+libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
+	ln -sf libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
+
+libpng.so.$(PNGVER): $(OBJSDLL)
+	$(CC) -shared -Wl,-soname,libpng.so.$(PNGMAJ) -o libpng.so.$(PNGVER) \
+	 $(OBJSDLL)
+
+pngtest: pngtest.o libpng.so
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a libpng.so.$(PNGVER)
+	-@mkdir $(INCPATH) $(LIBPATH)
+	cp png.h pngconf.h $(INCPATH)
+	chmod 644 $(INCPATH)/png.h $(INCPATH)/pngconf.h
+	cp libpng.a libpng.so.$(PNGVER) $(LIBPATH)
+	chmod 755 $(LIBPATH)/libpng.so.$(PNGVER)
+	-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
+	(cd $(LIBPATH); ln -sf libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
+	 ln -sf libpng.so.$(PNGMAJ) libpng.so)
+
+clean:
+	/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h

src/png/scripts/makefile.mip

@@ -0,0 +1,62 @@
+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=cc
+CFLAGS=-I../zlib -O -systype sysv -DSYSV -w -Dmips
+#CFLAGS=-O
+LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
+
+#RANLIB=ranlib
+RANLIB=echo
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/png.h
+	chmod 644 $(prefix)/include/pngconf.h
+	cp libpng.a $(prefix)/lib
+	chmod 644 $(prefix)/lib/libpng.a
+
+clean:
+	rm -f *.o libpng.a pngtest pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h

src/png/scripts/makefile.msc

@@ -0,0 +1,86 @@
+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+# Assumes that zlib.lib, zconf.h, and zlib.h have been copied to ..\zlib
+
+# ------------- Microsoft C 5.1 and later -------------
+MODEL=-AL
+CFLAGS=-Oait -Gs -nologo -W3 $(MODEL) -I..\zlib
+#-Ox generates bad code with MSC 5.1
+CC=cl
+LD=link
+LDFLAGS=/e/st:0x1500/noe 
+O=.obj
+
+#uncomment next to put error messages in a file
+ERRFILE= >> pngerrs
+
+# variables
+OBJS1 = png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
+OBJS2 = pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
+OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
+
+all: libpng.lib
+
+png$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngset$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngget$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngread$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngpread$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrtran$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrutil$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngerror$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngmem$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrio$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwio$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngtest$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngtrans$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwrite$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwtran$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwutil$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
+        del libpng.lib
+	lib libpng $(OBJS1);
+	lib libpng $(OBJS2);
+	lib libpng $(OBJS3);
+
+pngtest.exe: pngtest.obj libpng.lib 
+	$(LD) $(LDFLAGS) pngtest.obj,,,libpng.lib ..\zlib\zlib.lib ;
+
+test: pngtest.exe
+	pngtest
+
+# End of makefile for libpng
+

src/png/scripts/makefile.os2

@@ -0,0 +1,69 @@
+# makefile for libpng on OS/2 with gcc
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Related files: pngos2.def
+
+CC=gcc -Zomf -s
+
+# Where the zlib library and include files are located
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+         -Wmissing-declarations -Wtraditional -Wcast-align \
+         -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+CFLAGS=-I$(ZLIBINC) -Wall -O6 -funroll-loops -malign-loops=2 \
+       -malign-functions=2 #$(WARNMORE) -g -DPNG_DEBUG=5
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lzdll -Zcrtdll
+AR=emxomfar
+
+PNGLIB=png.lib
+IMPLIB=emximp
+SHAREDLIB=png.dll
+SHAREDLIBIMP=pngdll.lib
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+       pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+       pngwtran.o pngmem.o pngerror.o pngpread.o
+
+.SUFFIXES:      .c .o
+
+all: $(PNGLIB) $(SHAREDLIB) $(SHAREDLIBIMP)
+
+$(PNGLIB): $(OBJS)
+	$(AR) rc $@ $(OBJS)
+
+$(SHAREDLIB): $(OBJS) pngos2.def
+	$(CC) $(LDFLAGS) -Zdll -o $@ $^
+
+$(SHAREDLIBIMP): pngos2.def
+	$(IMPLIB) -o $@ $^
+
+pngtest.exe: pngtest.o png.dll pngdll.lib
+	$(CC) -o $@ $(CFLAGS) $< $(LDFLAGS)
+
+test: pngtest.exe
+	./pngtest.exe
+
+clean:
+	rm -f *.o $(PNGLIB) png.dll pngdll.lib pngtest.exe pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h

src/png/scripts/makefile.s2x

@@ -0,0 +1,104 @@
+# makefile for libpng on Solaris 2.x with gcc
+# Contributed by William L. Sebok, based on makefile.lnx
+# Copyright (C) 1996, 1997 Andreas Dilger
+# Copyright (C) 1998 Greg Roelofs
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=gcc
+
+# Where the zlib library and include files are located
+# Changing these to ../zlib poses a security risk.  If you want
+# to have zlib in an adjacent directory, specify the full path instead of "..".
+#ZLIBLIB=../zlib
+#ZLIBINC=../zlib
+
+ZLIBLIB=/usr/local/lib
+ZLIBINC=/usr/local/include
+
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+         -Wmissing-declarations -Wtraditional -Wcast-align \
+         -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+CFLAGS=-I$(ZLIBINC) -Wall -O3 \
+      #$(WARNMORE) -g -DPNG_DEBUG=5
+LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng -lz -lm
+
+#RANLIB=ranlib
+RANLIB=echo
+
+# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
+# have to change it.
+PNGMAJ = 2
+PNGMIN = 1.0
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+# where make install puts libpng.a, libpng.so*, and png.h
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+       pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+       pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES:      .c .o .pic.o
+
+.c.pic.o:
+	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+
+all: libpng.a libpng.so pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@ $(OBJS)
+	$(RANLIB) $@
+
+libpng.so: libpng.so.$(PNGMAJ)
+	ln -sf libpng.so.$(PNGMAJ) libpng.so
+
+libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
+	ln -sf libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
+
+libpng.so.$(PNGVER): $(OBJSDLL)
+	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h libpng.so.$(PNGMAJ) \
+	 -o libpng.so.$(PNGVER) $(OBJSDLL) -lz
+
+pngtest: pngtest.o libpng.so
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a libpng.so.$(PNGVER)
+	-@mkdir $(INCPATH) $(LIBPATH)
+	cp png.h pngconf.h $(INCPATH)
+	chmod 644 $(INCPATH)/png.h $(INCPATH)/pngconf.h
+	cp libpng.a libpng.so.$(PNGVER) $(LIBPATH)
+	chmod 755 $(LIBPATH)/libpng.so.$(PNGVER)
+	-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
+	(cd $(LIBPATH); ln -sf libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
+	 ln -sf libpng.so.$(PNGMAJ) libpng.so)
+
+clean:
+	/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h

src/png/scripts/makefile.sgi

@@ -0,0 +1,69 @@
+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+CC=cc
+
+CFLAGS=-I$(ZLIBINC) -O -fullwarn # -g -DPNG_DEBUG=1
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+
+RANLIB=echo
+#RANLIB=ranlib
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/png.h
+	chmod 644 $(prefix)/include/pngconf.h
+	cp libpng.a $(prefix)/lib
+	chmod 644 $(prefix)/lib/libpng.a
+
+clean:
+	rm -f *.o libpng.a pngtest pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+

src/png/scripts/makefile.std

@@ -0,0 +1,68 @@
+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+CC=cc
+CFLAGS=-I$(ZLIBINC) -O # -g -DPNG_DEBUG=1
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+
+#RANLIB=echo
+RANLIB=ranlib
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/png.h
+	chmod 644 $(prefix)/include/pngconf.h
+	cp libpng.a $(prefix)/lib
+	chmod 644 $(prefix)/lib/libpng.a
+
+clean:
+	rm -f *.o libpng.a pngtest pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+

src/png/scripts/makefile.sun

@@ -0,0 +1,72 @@
+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow -Wconversion \
+         -Wmissing-declarations -Wtraditional -Wcast-align \
+         -Wstrict-prototypes -Wmissing-prototypes
+CC=gcc
+CFLAGS=-I$(ZLIBINC) -O $(WARNMORE) -DPNG_DEBUG=4
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+
+RANLIB=ranlib
+#RANLIB=echo
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/png.h
+	chmod 644 $(prefix)/include/pngconf.h
+	cp libpng.a $(prefix)/lib
+	chmod 644 $(prefix)/lib/libpng.a
+
+clean:
+	rm -f *.o libpng.a pngtest pngout.png
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+

src/png/scripts/makefile.tc3

@@ -0,0 +1,82 @@
+# Makefile for libpng
+# TurboC++ 3.0 (Note: All modules are compiled in C mode)
+
+# To use, do "make -fmakefile.tc3"
+
+# ------------- Turbo C++ 3.0 -------------
+MODEL=-ml
+CFLAGS=-O2 -Z $(MODEL) -I..\zlib
+CC=tcc
+LD=tcc
+LIB=tlib
+LDFLAGS=$(MODEL) -L..\zlib
+O=.obj
+E=.exe
+
+# variables
+OBJS1 = png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
+OBJS2 = pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
+OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
+OBJSL1 = +png$(O) +pngset$(O) +pngget$(O) +pngrutil$(O) +pngtrans$(O)
+OBJSL2 = +pngwutil$(O) +pngmem$(O) +pngpread$(O) +pngread$(O) +pngerror$(O)
+OBJSL3 = +pngwrite$(O) +pngrtran$(O) +pngwtran$(O) +pngrio$(O) +pngwio$(O)
+
+all: libpng.lib pngtest.exe
+
+png$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c
+
+pngset$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c
+
+pngget$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c
+
+pngread$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c
+
+pngpread$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c
+
+pngrtran$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c
+
+pngrutil$(O): png.h pngconf.h
+		  $(CC) -c $(CFLAGS) $*.c
+
+pngerror$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+pngmem$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+pngrio$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+pngwio$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+pngtest$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+pngtrans$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+pngwrite$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+pngwtran$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+pngwutil$(O): png.h pngconf.h
+        $(CC) -c $(CFLAGS) $*.c
+
+libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
+        $(LIB) libpng +$(OBJSL1)
+        $(LIB) libpng +$(OBJSL2)
+        $(LIB) libpng +$(OBJSL3)
+
+pngtest$(E): pngtest$(O) libpng.lib
+        $(CC) $(LDFLAGS) pngtest.obj libpng.lib zlib.lib
+
+# End of makefile for libpng

src/png/scripts/makefile.wat

@@ -0,0 +1,88 @@
+# Makefile for libpng
+# Watcom 10a and later 32-bit protected mode flat memory model
+
+# Adapted by Pawel Mrochen, based on makefile.msc
+# For conditions of distribution and use, see copyright notice in png.h
+# Assumes that zlib.lib, zconf.h, and zlib.h have been copied to ..\zlib
+
+# To use, do "wmake -f makefile.wat"
+
+# ------------- Watcom 10a and later -------------
+MODEL=-mf
+CFLAGS= $(MODEL) -fpi87 -fp5 -5r -oaeilmnrt -s -zp4 -i=..\zlib
+CC=wcc386
+LD=wcl386
+LIB=wlib -b -c
+LDFLAGS=
+O=.obj
+
+#uncomment next to put error messages in a file
+#ERRFILE= >> pngerrs
+
+# variables
+OBJS1 = png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
+OBJS2 = pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
+OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
+
+all: test
+
+png$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngset$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngget$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngread$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngpread$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrtran$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrutil$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngerror$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngmem$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrio$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwio$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngtest$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngtrans$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwrite$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwtran$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwutil$(O): png.h pngconf.h
+	$(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
+	$(LIB) -n libpng.lib +$(OBJS1)
+	$(LIB) libpng.lib +$(OBJS2)
+	$(LIB) libpng.lib +$(OBJS3)
+
+pngtest.exe: pngtest.obj libpng.lib
+	$(LD) $(LDFLAGS) pngtest.obj libpng.lib ..\zlib\zlib.lib
+
+test: pngtest.exe
+	pngtest
+
+# End of makefile for libpng

src/png/scripts/makevms.com

@@ -0,0 +1,125 @@
+$! make libpng under VMS
+$!
+$!
+$! Look for the compiler used
+$!
+$ zlibsrc = "[-.zlib]"
+$ ccopt="/include=''zlibsrc'"
+$ if f$getsyi("HW_MODEL").ge.1024
+$ then
+$  ccopt = "/prefix=all"+ccopt
+$  comp  = "__decc__=1"
+$  if f$trnlnm("SYS").eqs."" then define sys sys$library:
+$ else
+$  if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
+$   then
+$    if f$trnlnm("SYS").eqs."" then define sys sys$library:
+$    if f$search("SYS$SYSTEM:VAXC.EXE").eqs.""
+$     then
+$      comp  = "__gcc__=1"
+$      CC :== GCC
+$     else
+$      comp = "__vaxc__=1"
+$     endif
+$   else
+$    if f$trnlnm("SYS").eqs."" then define sys decc$library_include:
+$    ccopt = "/decc/prefix=all"+ccopt
+$    comp  = "__decc__=1"
+$  endif
+$ endif
+$!
+$! Build the thing plain or with mms
+$!
+$ write sys$output "Compiling Libpng sources ..."
+$ if f$search("SYS$SYSTEM:MMS.EXE").eqs.""
+$  then
+$   dele pngtest.obj;*
+$   CALL MAKE png.OBJ "cc ''CCOPT' png" -
+                png.c png.h pngconf.h   
+$   CALL MAKE pngpread.OBJ "cc ''CCOPT' pngpread" -
+					 pngpread.c png.h pngconf.h
+$   CALL MAKE pngset.OBJ "cc ''CCOPT' pngset" -
+                pngset.c png.h pngconf.h
+$   CALL MAKE pngget.OBJ "cc ''CCOPT' pngget" -
+                pngget.c png.h pngconf.h
+$   CALL MAKE pngread.OBJ "cc ''CCOPT' pngread" -
+                pngread.c png.h pngconf.h
+$   CALL MAKE pngpread.OBJ "cc ''CCOPT' pngpread" -
+					 pngpread.c png.h pngconf.h
+$   CALL MAKE pngrtran.OBJ "cc ''CCOPT' pngrtran" -
+                pngrtran.c png.h pngconf.h
+$   CALL MAKE pngrutil.OBJ "cc ''CCOPT' pngrutil" -
+                pngrutil.c png.h pngconf.h
+$   CALL MAKE pngerror.OBJ "cc ''CCOPT' pngerror" -
+                pngerror.c png.h pngconf.h
+$   CALL MAKE pngmem.OBJ "cc ''CCOPT' pngmem" -
+                pngmem.c png.h pngconf.h
+$   CALL MAKE pngrio.OBJ "cc ''CCOPT' pngrio" -
+                pngrio.c png.h pngconf.h
+$   CALL MAKE pngwio.OBJ "cc ''CCOPT' pngwio" -
+                pngwio.c png.h pngconf.h
+$   CALL MAKE pngtrans.OBJ "cc ''CCOPT' pngtrans" -
+                pngtrans.c png.h pngconf.h
+$   CALL MAKE pngwrite.OBJ "cc ''CCOPT' pngwrite" -
+                pngwrite.c png.h pngconf.h
+$   CALL MAKE pngwtran.OBJ "cc ''CCOPT' pngwtran" -
+                pngwtran.c png.h pngconf.h
+$   CALL MAKE pngwutil.OBJ "cc ''CCOPT' pngwutil" -
+                pngwutil.c png.h pngconf.h
+$   write sys$output "Building Libpng ..."
+$   CALL MAKE libpng.OLB "lib/crea libpng.olb *.obj" *.OBJ
+$   write sys$output "Building pngtest..."
+$   CALL MAKE pngtest.OBJ "cc ''CCOPT' pngtest" -
+                pngtest.c png.h pngconf.h
+$   call make pngtest.exe - 
+                "LINK pngtest,libpng.olb/lib,''zlibsrc'libgz.olb/lib" - 
+                pngtest.obj libpng.olb
+$   write sys$output "Testing Libpng..."
+$   run pngtest
+$  else
+$   mms/macro=('comp',zlibsrc='zlibsrc')
+$  endif
+$ write sys$output "Libpng build completed"
+$ exit
+$!
+$!
+$MAKE: SUBROUTINE   !SUBROUTINE TO CHECK DEPENDENCIES
+$ V = 'F$Verify(0)
+$! P1 = What we are trying to make
+$! P2 = Command to make it
+$! P3 - P8  What it depends on
+$
+$ If F$Search(P1) .Eqs. "" Then Goto Makeit
+$ Time = F$CvTime(F$File(P1,"RDT"))
+$arg=3
+$Loop:
+$       Argument = P'arg
+$       If Argument .Eqs. "" Then Goto Exit
+$       El=0
+$Loop2:
+$       File = F$Element(El," ",Argument)
+$       If File .Eqs. " " Then Goto Endl
+$       AFile = ""
+$Loop3:
+$       OFile = AFile
+$       AFile = F$Search(File)
+$       If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
+$       If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
+$       Goto Loop3
+$NextEL:
+$       El = El + 1
+$       Goto Loop2
+$EndL:
+$ arg=arg+1
+$ If arg .Le. 8 Then Goto Loop
+$ Goto Exit
+$
+$Makeit:
+$ VV=F$VERIFY(0)
+$ write sys$output P2
+$ 'P2
+$ VV='F$Verify(VV)
+$Exit:
+$ If V Then Set Verify
+$ENDSUBROUTINE
+

src/png/scripts/pngos2.def

@@ -0,0 +1,286 @@
+;----------------------------------------
+; PNGLIB module definition file for OS/2
+;----------------------------------------
+
+LIBRARY		PNG
+DESCRIPTION	"PNG image compression library for OS/2"
+CODE		PRELOAD MOVEABLE DISCARDABLE
+DATA		PRELOAD MOVEABLE MULTIPLE
+
+EXPORTS
+  png_set_sig_bytes
+  png_sig_cmp
+  png_check_sig
+  png_create_read_struct
+  png_create_write_struct
+  png_write_chunk
+  png_write_chunk_start
+  png_write_chunk_data
+  png_write_chunk_end
+  png_create_info_struct
+  png_info_init
+  png_write_info
+  png_read_info
+  png_convert_to_rfc1123
+  png_convert_from_struct_tm
+  png_convert_from_time_t
+  png_set_expand
+  png_set_bgr
+  png_set_gray_to_rgb
+; png_set_rgb_to_gray
+  png_build_grayscale_palette
+  png_set_strip_alpha
+  png_set_swap_alpha
+  png_set_invert_alpha
+  png_set_filler
+  png_set_swap
+  png_set_packing
+  png_set_packswap
+  png_set_shift
+  png_set_interlace_handling
+  png_set_invert_mono
+  png_set_background
+  png_set_strip_16
+  png_set_dither
+  png_set_gamma
+  png_set_flush
+  png_write_flush
+  png_start_read_image
+  png_read_update_info
+  png_read_rows
+  png_read_row
+  png_read_image
+  png_write_row
+  png_write_rows
+  png_write_image
+  png_write_end
+  png_read_end
+  png_destroy_info_struct
+  png_destroy_read_struct
+  png_read_destroy
+  png_destroy_write_struct
+; png_write_destroy_info
+  png_write_destroy
+  png_set_crc_action
+  png_set_filter
+  png_set_filter_heuristics
+  png_set_compression_level
+  png_set_compression_mem_level
+  png_set_compression_strategy
+  png_set_compression_window_bits
+  png_set_compression_method
+  png_init_io
+  png_set_error_fn
+  png_get_error_ptr
+  png_set_write_fn
+  png_set_read_fn
+  png_set_write_status_fn
+  png_set_read_status_fn
+  png_get_io_ptr
+  png_set_progressive_read_fn
+  png_set_read_status_fn
+  png_set_read_user_transform_fn
+  png_set_write_status_fn
+  png_set_write_user_transform_fn
+  png_get_progressive_ptr
+  png_process_data
+  png_progressive_combine_row
+  png_malloc
+  png_free
+  png_memcpy_check
+  png_memset_check
+; png_debug_malloc
+; png_debug_free
+; png_far_to_near
+  png_error
+  png_chunk_error
+  png_warning
+  png_chunk_warning
+  png_get_valid
+  png_get_rowbytes
+  png_get_channels
+  png_get_image_width
+  png_get_image_height
+  png_get_bit_depth
+  png_get_color_type
+  png_get_filter_type
+  png_get_interlace_type
+  png_get_compression_type
+  png_get_pixels_per_meter
+  png_get_pixel_aspect_ratio
+  png_get_x_offset_pixels
+  png_get_y_offset_pixels
+  png_get_x_offset_microns
+  png_get_y_offset_microns
+  png_get_signature
+  png_get_bKGD
+  png_set_bKGD
+  png_get_cHRM
+  png_set_cHRM
+  png_get_gAMA
+  png_set_gAMA
+  png_get_hIST
+  png_set_hIST
+  png_get_IHDR
+  png_set_IHDR
+  png_get_oFFs
+  png_set_oFFs
+  png_get_pCAL
+  png_set_pCAL
+  png_get_pHYs
+  png_set_pHYs
+  png_get_PLTE
+  png_set_PLTE
+  png_get_sBIT
+  png_set_sBIT
+  png_get_sRGB
+  png_set_sRGB
+  png_set_sRGB_gAMA_and_cHRM
+  png_get_text
+  png_set_text
+  png_get_tIME
+  png_set_tIME
+  png_get_tRNS
+  png_set_tRNS
+
+  png_create_struct
+  png_destroy_struct
+  png_info_destroy
+  png_zalloc
+  png_zfree
+  png_reset_crc
+  png_write_data
+  png_read_data
+  png_crc_read
+  png_crc_finish
+  png_crc_error
+  png_calculate_crc
+  png_flush
+  png_save_uint_32
+  png_save_int_32
+  png_save_uint_16
+  png_write_sig
+  png_write_IHDR
+  png_write_PLTE
+  png_write_IDAT
+  png_write_IEND
+  png_write_gAMA
+  png_write_sBIT
+  png_write_cHRM
+  png_write_sRGB
+  png_write_tRNS
+  png_write_bKGD
+  png_write_hIST
+  png_check_keyword
+  png_write_tEXt
+  png_write_zTXt
+  png_write_oFFs
+  png_write_pCAL
+  png_write_pHYs
+  png_write_tIME
+  png_write_finish_row
+  png_write_start_row
+  png_build_gamma_table
+  png_combine_row
+  png_do_read_interlace
+  png_do_write_interlace
+  png_read_filter_row
+  png_write_find_filter
+  png_write_filtered_row
+  png_read_finish_row
+  png_read_start_row
+  png_read_transform_info
+  png_do_read_filler
+  png_do_read_swap_alpha
+  png_do_write_swap_alpha
+  png_do_read_invert_alpha
+  png_do_write_invert_alpha
+  png_do_strip_filler
+  png_do_swap
+  png_do_packswap
+; png_do_rgb_to_gray
+  png_do_gray_to_rgb
+  png_do_unpack
+  png_do_unshift
+  png_do_invert
+  png_do_chop
+  png_do_dither
+; png_correct_palette
+  png_do_bgr
+  png_do_pack
+  png_do_shift
+  png_do_background
+  png_do_gamma
+  png_do_expand_palette
+  png_do_expand
+  png_handle_IHDR
+  png_handle_PLTE
+  png_handle_IEND
+  png_handle_gAMA
+  png_handle_sBIT
+  png_handle_cHRM
+  png_handle_sRGB
+  png_handle_tRNS
+  png_handle_bKGD
+  png_handle_hIST
+  png_handle_oFFs
+  png_handle_pCAL
+  png_handle_pHYs
+  png_handle_tIME
+  png_handle_tEXt
+  png_handle_zTXt
+  png_handle_unknown
+  png_check_chunk_name
+  png_do_read_transformations
+  png_do_write_transformations
+  png_init_read_transformations
+  png_push_read_chunk
+  png_push_read_sig
+; png_push_check_crc
+  png_push_crc_skip
+  png_push_crc_finish
+  png_push_fill_buffer
+  png_push_save_buffer
+  png_push_restore_buffer
+  png_push_read_IDAT
+  png_process_IDAT_data
+  png_push_process_row
+  png_push_handle_unknown
+  png_push_have_info
+  png_push_have_end
+  png_push_have_row
+; png_push_read_end
+  png_process_some_data
+  png_read_push_finish_row
+  png_push_handle_tEXt
+  png_push_read_tEXt
+  png_push_handle_zTXt
+  png_push_read_zTXt
+
+  png_libpng_ver
+  png_pass_start
+  png_pass_inc
+  png_pass_ystart
+  png_pass_yinc
+  png_pass_mask
+  png_pass_dsp_mask
+; png_pass_width
+; png_pass_height
+
+  png_IHDR
+  png_IDAT
+  png_IEND
+  png_PLTE
+  png_bKGD
+  png_cHRM
+  png_gAMA
+  png_hIST
+  png_oFFs
+  png_pCAL
+  png_pHYs
+  png_sBIT
+  png_sRGB
+  png_tEXt
+  png_tIME
+  png_tRNS
+  png_zTXt

src/png/scripts/smakefile.ppc

@@ -0,0 +1,29 @@
+# Amiga powerUP (TM) Makefile
+# makefile for libpng and SAS C V6.58/7.00 PPC compiler
+# Copyright (C) 1998 by Andreas R. Kleinert
+
+CC       = scppc
+CFLAGS   = NOSTKCHK NOSINT OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL IDIR /zlib \
+           OPTLOOP OPTRDEP=8 OPTDEP=8 OPTCOMP=8
+LIBNAME  = libpng.a
+AR       = ppc-amigaos-ar
+AR_FLAGS = cr
+RANLIB   = ppc-amigaos-ranlib
+LDFLAGS  = -r -o
+LDLIBS   =  ../zlib/libzip.a LIB:scppc.a
+LN       = ppc-amigaos-ld
+RM       = delete quiet
+MKDIR    = makedir
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o pngread.o \
+pngerror.o pngpread.o pngwrite.o pngrtran.o pngwtran.o pngrio.o pngwio.o pngmem.o
+
+all: $(LIBNAME) pngtest
+
+$(LIBNAME): $(OBJS)
+            $(AR) $(AR_FLAGS) $@ $(OBJS)
+            $(RANLIB) $@
+
+pngtest: pngtest.o $(LIBNAME)
+        $(LN) $(LDFLAGS) pngtest LIB:c_ppc.o pngtest.o $(LIBNAME) $(LDLIBS) \
+LIB:end.o

wxPython/wxPython/py/CHANGES.txt

@@ -1,549 +0,0 @@
-
-0.9.1 (3/21/2003 to 5/2/2003)
------------------------------
-
-PyCrust is dead!  Long live Py!
-
-* Renamed ``PyCrust`` package to ``py``.
-* Moved code to wxPython's CVS repository.
-
-Fixed bug in ``introspect.py`` on introspecting objects occurring
-immediately after a secondary prompt, like this::
-
-    >>> l = [1, 2, 3]
-    >>> for n in range(3):
-    ...     l.  <-- failed to popup autocomplete list
-
-Added documentation files:
-
-* PyManual.txt
-* wxPythonManual.txt
-* wxPythonPackage.txt
-* wxPythonExamples.txt
-
-Added PyAlaMode and PyAlaCarte code editors.
-
-Major refactoring to support ``editor`` and ``shell`` from the same
-base.
-
-Renamed program files:
-
-* ``PyCrustApp.py`` to ``PyCrust.py``
-* ``PyFillingApp.py`` to ``PyFilling.py``
-* ``PyShellApp.py`` to ``PyShell.py``
-* ``wrap.py`` to ``PyWrap.py``
-
-Removed disabling of autocomplete for lists of 2000 items or more.
-The current implementation of wxSTC can now handle lists this big.
-
-Improved handling of ``sys.path`` to mimic the standard Python shell.
-
-
-0.9 (2/27/2003 to 3/20/2003)
-----------------------------
-
-Added fontIncrease, fontDecrease, fontDefault signals, receivers and
-keybindings::
-
-    Ctrl+]            Increase font size.
-    Ctrl+[            Decrease font size.
-    Ctrl+=            Default font size.
-
-Continued enhancement of the decorator capability to provide better
-documentation and docstrings for wxPython classes and functions.
-
-Introduced new tabbed interface:
-
-* Namespace
-* Calltip
-* Session
-* Dispatcher
-* wxPython Docs
-* wxSTC Docs
-
-``Filling.tree`` now expands tuples as well as lists.  (It should have
-done this all along, I just never noticed this omission before.)
-
-Added this True/False test to all modules::
-
-    try:
-        True
-    except NameError:
-        True = 1==1
-        False = 1==0
-
-Added ``wxd`` directory with decoration classes.
-
-
-0.8.2 (1/5/2003 to 2/26/2003)
------------------------------
-
-Wrapped ``sys.ps1``, ``sys.ps2``, and ``sys.ps3`` in ``str()``.
-(Thanks, Kieran Holland.)
-
-Fixed minor things found by PyChecker.
-
-Changed locals to use ``__main__.__dict__`` and added code to clean up
-the namespace, making it as close to the regular Python environment as
-possible.  This solves the problem of pickling and unpickling
-instances of classes defined in the shell.
-
-Made ``shell.PasteAndRun()`` a little more forgiving when it finds a
-ps2 prompt line with no trailing space, such when you copy code from a
-web page.
-
-Improved autocomplete behavior by adding these to shell::
-
-    self.AutoCompSetAutoHide(False)
-    self.AutoCompStops(' .,;:([)]}\'"\\<>%^&+-=*/|`')
-
-Added ``decor`` directory, ``decorator.py``, ``stcDecor.py``, and
-``stcConstants.py``.  These all serve the purpose of adding docstrings
-to existing wxPython classes, in particular the ``wxStyledTextCtrl``.
-
-Added ``wrap.py``, a command line utility for running a wxPython app
-with additional runtime-tools loaded, such as PyCrust (the only tool
-at this point).
-
-Flushed the clipboard Cut/Copy operations so that selections will
-exist in the clipboard even after PyCrust has been closed.
-
-Improved the suppression of docstrings for simple data types appearing
-in the namespace viewer.
-
-Better handling of autocompletion with numeric types; no
-autocompletion when typing a dot after an integer.  If the
-autocompletion is desired, type a space before the dot::
-
-    func = 3 .
-
-More Filling!!! The namespace tree is now dynamically updated.
-
-
-0.8.1 (12/20/2002 to 12/25/2002)
---------------------------------
-
-Improved keyboard handling with Autocomplete active.  You can now use
-Enter as well as Tab to select an item from the list.
-
-Disabled autocomplete for lists of 2000 items or more.  The current
-implementation of wxSTC can't handle lists this big.
-
-Changed ``filling`` to always display docstrings for objects.  This is
-useful for objects whose docstrings have been decorated, rather than
-coming directly from the source code.  (Hmmm.  Sounds like someone is
-doing some decorating.  I wonder where that would be helpful? <wink>)
-
-Fixed handling of icon.  Added ``images.py`` file.
-
-
-0.8 (10/29/2002 to 12/16/2002)
-------------------------------
-
-Added "help" to startup banner info.
-
-Made all ``wx`` and ``stc`` imports explicit.  No more ``import *``.
-
-Replaced use of the ``wx`` module's ``true`` and ``false`` with
-Python's ``True`` and ``False``.
-
-Changed ``introspect.getRoot()`` to use ``tokenize`` module.  This
-does a slightly better job than the previous parsing routine and the
-code is clearer.
-
-Improved handling of whitespace and empty types during introspection.
-
-Fixed cut/copy clipboard problem under Linux.  (Robin Dunn rocks!!!)
-
-Added shell.about() which works like this::
-
-    >>> shell.about()
-    PyCrust Version: 0.8
-    Shell Revision: 1.80
-    Interpreter Revision: 1.15
-    Python Version: 2.2.2
-    wxPython Version: 2.3.3.1
-    Platform: linux2
-
-Added copy plus and paste plus to shell menu.
-
-Moved shell menu from ``shell.py`` to ``shellmenu.py``.
-
-Added ``sys.stdin.readlines()`` support.
-
-Added ``time.sleep()`` in ``readline()`` and ``OnIdle()`` event
-handler to free up the CPU.
-
-
-0.7.2 (2/22/2002 to 8/27/2002)
-------------------------------
-
-Tweaked ``getAttributeNames()`` to pick up a few more attributes::
-
-    '__bases__', '__class__', '__dict__', '__name__', 'func_closure',
-    'func_code', 'func_defaults', 'func_dict', 'func_doc',
-    'func_globals', 'func_name'
-
-Added a tests directory and unit tests.
-
-Improved support for empty types in the shell: ``[]``, ``()`` and
-``{}`` as far as when call tips and autocompletion are available.
-
-Added support for the other triple string - ``''''''``.
-
-Refactored ``introspect.py`` to improve testability.
-
-Improved call tips for unbound methods by leaving the "self"
-parameter, since unbound methods require an instance be passed.
-
-Fixed call tip bug where a tip was displayed when a "(" was typed
-after an object that wasn't callable.
-
-Fixed ``getAllAttributeNames`` when ``str(object)`` fails.
-
-Added brace highlighting.  (Thank you, Kevin Altis.)
-
-Fixed problem displaying unicode objects in ``PyFilling``.
-
-Changed how ``filling.py`` checks for expandable objects.  Lists are
-now expandable objects.
-
-Made the key handling more robust when there is an active text
-selection that includes text prior to the last primary prompt.  Thanks
-to Raul Cota for pointing this out.
-
-Fixed wxSTC problem with brace highlighting and non-us keyboards.
-(Thank you for the patch, Jean-Michel Fauth.)
-
-Added ``busy = wxBusyCursor()`` to key points in ``shell`` and
-``filling``.
-
-Added ``OnCloseWindow`` handler to ``ShellFrame`` and ``CrustFrame``.
-
-Default to ``SetWrapMode(1)`` for shell and namespace viewer.
-
-Added ``shell.wrap()`` and ``shell.zoom()``.
-
-Added autoCompleteKeys hooks for Raul Cota.
-
-Cleaned up various little key handling bugs.
-
-Changed input methods to get values from shell, rather than dialog
-boxes.  Renamed ``readIn`` to ``readline`` and ``readRaw`` to
-``raw_input``.
-
-
-0.7.1 (12/12/2001 to 2/21/2002)
--------------------------------
-
-Fixed ``OnChar()`` issues effecting European keyboards, as reported by
-Jean-Michel Fauth.
-
-Fixed ``introspect.py`` issue with xmlrpc objects reported by Kevin
-Altis.
-
-Fixed some introspect/PyFilling issues with regard to Python 2.2.
-
-Fixed font background color as reported by Keith J. Farmer.  (Thanks)
-
-Fixed problem with call tips and autocompletion inside multiline
-commands as report by Kevin Altis.
-
-Improved ``OnKeyDown`` handling of cut/copy/paste operations based on
-feedback from Syver Enstad.  (Thanks)
-
-Added a ``shell.help()`` method to display some help info.
-
-Changed sort of items in the namespace viewer to case insensitive.
-
-Changed ``attributes.sort(lambda x, y: cmp(x.upper(), y.upper()))`` in
-advance of an upcoming fix to an autocompletion matching bug in wxSTC.
-
-Improved support for ZODB by allowing namespace drilldown into BTrees.
-
-Added ``shell.PasteAndRun()`` to support pasting multiple commands into
-the shell from the clipboard.  Ctrl+Shift+V or v.
-
-Enter now always processes a command (or copies down a previous one.)
-To insert a line break, press Ctrl+Enter.
-
-Escape key clears the current, unexecuted command.
-
-History retrieval changed to replace current command.  Added new keys
-to insert from history - Shift+Up and Shift+Down.
-
-Better call tips on objects with ``__call__`` methods.
-
-Improved call tip positioning calculation.
-
-
-0.7 (10/15/2001 to 12/11/2001)
-------------------------------
-
-Changed how command history retrieval functions work.  Added Alt-P,
-Alt-N as keybindings for Retrieve-Previous, Retrieve-Next.
-
-Added full support for multi-line commands, similar to IDLE.
-
-Changed ``introspect.getAttributeNames()`` to do a case insensitive
-sort.
-
-Changed Cut/Copy/Paste to deal with prompts intelligently.  Cut and
-Copy remove all prompts.  Paste can handle prompted or not-prompted
-text.
-
-Added ``CopyWithPrompts()`` method attached to Ctrl-Shift-C for those
-times when you really do want all the prompts left intact.
-
-Improved handling of the shell's read-only zone.
-
-Changed ``CrustFrame.__init__`` parameter spec to include all
-parameters allowed by a ``wxFrame``.
-
-Changed ``FillingText`` to be read-only.
-
-Renamed ``PyCrust.py`` to ``PyCrustApp.py`` to eliminate
-package/module name conflicts that kept you from doing ``from PyCrust
-import shell`` inside files located in the ``PyCrust`` directory.
-
-Renamed ``PyFilling.py`` to ``PyFillingApp.py`` and ``PyShell.py`` to
-``PyShellApp.py`` to maintain consistency.
-
-Removed the ``__date__`` property from all modules.
-
-Fixed bug in ``introspect.getCallTip()``, reported by Kevin Altis.
-
-
-0.6.1 (9/19/2001 to 10/12/2001)
--------------------------------
-
-Changed ``Shell.run()`` to always position to the end of existing
-text, as suggested by Raul Cota.
-
-Changed ``introspect.getAllAttributeNames()`` to break circular
-references in ``object.__class__``, which occurs in Zope/ZODB
-extension classes.
-
-Changed ``filling.FillingTree.getChildren()`` to introspect extension
-classes.
-
-Fixed minor bugs in ``introspect.getCallTip()`` that were interfering
-with call tips for Zope/ZODB extension class methods.
-
-In preparation for wxPython 2.3.2, added code to fix a font sizing
-problem.  Versions of wxPython prior to 2.3.2 had a sizing bug on Win
-platform where the font was 2 points larger than what was specified.
-
-Added a hack to ``introspect.getAllAttributeNames()`` to "wake up"
-ZODB objects that are asleep - in a "ghost" state.  Otherwise it
-returns incomplete info.
-
-
-0.6 (8/21/2001 to 9/12/2001)
-----------------------------
-
-Added ``PyFilling.py`` and ``filling.py``.
-
-``PyShell.py`` and ``PyFilling.py`` can now be run standalone, as well
-as ``PyCrust.py``.
-
-Added ``crust.py`` and moved some code from ``PyCrust.py`` to it.
-
-Added command history retrieval features submitted by Richie Hindle.
-
-Changed ``shell.write()`` to replace line endings with OS-specific
-endings.  Changed ``shell.py`` and ``interpreter.py`` to use
-``os.linesep`` in strings having hardcoded line endings.
-
-Added ``shell.redirectStdin()``, ``shell.redirectStdout()`` and
-``shell.redirectStderr()`` to allow the surrounding app to toggle
-requests that the specified ``sys.std*`` be redirected to the shell.
-These can also be run from within the shell itself, of course.
-
-The shell now adds the current working directory "." to the search
-path::
-
-    sys.path.insert(0, os.curdir)
-
-Added support for distutils installations.
-
-
-0.5.4 (8/17/2001 to 8/20/2001)
-------------------------------
-
-Changed default font size under Linux to::
-
-    'size'   : 12,
-    'lnsize' : 10,
-
-Changed ``Shell`` to expect a parameter referencing an Interpreter
-class, rather than an intepreter instance, to facilitate subclassing
-of Interpreter, which effectively broke when the Editor class was
-eliminated.
-
-Fixed ``PyCrustAlaCarte.py``, which had been broken by previous
-changes.
-
-Created ``InterpreterAlaCarte`` class as an example for use in the
-demo.
-
-Split ``PyCrust.py`` into ``PyCrust.py`` and ``PyShell.py`` in
-anticipation of ``PyFilling.py``.
-
-
-0.5.3 (8/16/2001)
------------------
-
-Added patch to ``PyCrust.py`` to fix wxPython bug::
-
-    wxID_SELECTALL = NewId() # This *should* be defined by wxPython.
-
-
-0.5.2 (8/14/2001 to 8/15/2001)
-------------------------------
-
-Shortened module names by dropping "PyCrust" as a prefix.
-
-Changed ``version`` to ``VERSION`` in ``version`` module.
-
-Added Options menu to PyCrust application.
-
-Eliminated the Editor class (and editor module) by merging with Shell.
-This means that Shell "is a" wxStyledTextCtrl rather than "has a".
-There just wasn't enough non-gui code to justify the separation.
-Plus, Shell will be much easier for gui toolkits/designers to deal
-with now.
-
-
-0.5.1 (8/10/2001 to 8/14/2001)
-------------------------------
-
-Added ``introspect`` module.
-
-Moved some functionality from ``PyCrustInterp`` to ``introspect``.
-
-Changed ``introspect.getRoot()`` to no longer remove whitespace from
-the command.  This was a remnant of a previous approach that, when
-left as part of the current approach, turned out to be a really bad
-thing.
-
-Changed ``introspect.getRoot()`` to allow commands of ``''``, ``""``,
-``""""""``, ``[]``, ``()``, and ``{}`` to pass through.  This allows
-you to type them, followed by a dot, and get autocomplete options on
-them.
-
-Changed ``introspect.getRoot()`` to identify some situations where
-strings shouldn't be considered roots.  For example::
-
-    >>> import PyCrust  # To illustrate the potential problem.
-    >>> len('PyCrust.py')
-
-Typing the dot at the end of "PyCrust" in the second line above should
-NOT result in an autocompletion list because "PyCrust" is part of a
-string in this context, not a reference to the PyCrust module object.
-Similar reasoning applies to call tips.  For example::
-
-    >>> len('dir(')
-
-Typing the left paren at the end of "dir" should NOT result in a call
-tip.
-
-Both features now behave properly in the examples given.  However,
-there is still the case where whitespace precedes the potential root
-and that is NOT handled properly.  For example::
-
-    >>> len('this is a dir(')
-
-and::
-
-    >>> len('This is PyCrust.py')
-
-More code needs to be written to handle more complex situations.
-
-Added ``locals=None`` parameter to ``Shell.__init__()``.
-
-Added support for magic attribute retrieval.  Users can change this
-with::
-
-    >>> shell.editor.autoCompleteIncludeMagic = 0
-
-Added the ability to set filters on auto completion to exclude
-attributes prefixed with a single or double underscore.  Users can
-exclude one or the other or both with::
-
-    >>> shell.editor.autoCompleteExcludeSingle = 1
-    >>> shell.editor.autoCompleteExcludeDouble = 1
-
-
-0.5 (8/8/2001)
---------------
-
-Mostly just a final version change before creating a release.
-
-
-0.4 (8/4/2001 to 8/7/2001)
---------------------------
-
-Changed version/revision handling.
-
-Fixed bugs.
-
-
-0.3 (8/2/2001 to 8/3/2001)
---------------------------
-
-Removed lots of cruft.
-
-Added lots of docstrings.
-
-Imported to CVS repository at SourceForge.
-
-Added call tips.
-
-
-0.2 (7/30/2001 to 8/2/2001)
----------------------------
-
-Renamed several files.
-
-Added command autocompletion.
-
-Added menus to PyCrust.py: File, Edit and Help.
-
-Added sample applications: ``PyCrustAlaCarte.py``,
-``PyCrustAlaMode.py``, and ``PyCrustMinimus.py``.
-
-
-0.1 (7/1/2001 to 7/19/2001)
----------------------------
-
-Added basic syntax coloring much like Boa.
-
-Added read-only logging much like IDLE.
-
-Can retrieve a previous command by putting the cursor back on that
-line and hitting enter.
-
-Stdin and raw_input operate properly so you can now do ``help()`` and
-``license()`` without hanging.
-
-Redefined "quit", "exit", and "close" to display a better-than-nothing
-response.
-
-Home key honors the prompt.
-
-Created SourceForge account, but nothing was posted.
-
-
-In the beginning, there was pie... (7/1/2001)
----------------------------------------------
-
-Blame it all on IDLE, Boa and PythonWin.  I was using all three, got
-frustrated with their dissimilarities, and began to let everyone know
-how I felt.  At the same time, Scintilla looked like an interesting
-tool to build a shell around.  And while I didn't receive much in the
-way of positive feedback, let alone encouragement, I just couldn't let
-go of the idea of a Scintilla-based Python shell.  Then the PythonCard
-project got to the point where they were talking about including a
-shell in their development environment.  That was all the incentive I
-needed.  PyCrust had to happen...

wxPython/wxPython/py/PyAlaCarte.py

@@ -1,43 +0,0 @@
-"""PyAlaCarte is a simple programmer's editor."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-import os
-import sys
-
-import editor
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-class App(wx.wxApp):
-    """PyAlaCarte standalone application."""
-
-    def __init__(self, filename=None):
-        self.filename = filename
-        wx.wxApp.__init__(self, redirect=False)
-
-    def OnInit(self):
-        wx.wxInitAllImageHandlers()
-        self.frame = editor.EditorFrame(filename=self.filename)
-        self.frame.Show()
-        self.SetTopWindow(self.frame)
-        return True
-
-def main(filename=None):
-    if not filename and len(sys.argv) > 1:
-        filename = sys.argv[1]
-    if filename:
-        filename = os.path.realpath(filename)
-    app = App(filename)
-    app.MainLoop()
-
-if __name__ == '__main__':
-    main()

wxPython/wxPython/py/PyAlaMode.py

@@ -1,43 +0,0 @@
-"""PyAlaMode is a programmer's editor."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-import os
-import sys
-
-import editor
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-class App(wx.wxApp):
-    """PyAlaMode standalone application."""
-
-    def __init__(self, filename=None):
-        self.filename = filename
-        wx.wxApp.__init__(self, redirect=False)
-
-    def OnInit(self):
-        wx.wxInitAllImageHandlers()
-        self.frame = editor.EditorNotebookFrame(filename=self.filename)
-        self.frame.Show()
-        self.SetTopWindow(self.frame)
-        return True
-
-def main(filename=None):
-    if not filename and len(sys.argv) > 1:
-        filename = sys.argv[1]
-    if filename:
-        filename = os.path.realpath(filename)
-    app = App(filename)
-    app.MainLoop()
-
-if __name__ == '__main__':
-    main()

wxPython/wxPython/py/PyAlaModeTest.py

@@ -1,42 +0,0 @@
-"""PyAlaModeTest is a programmer's editor."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-import os
-import sys
-
-import editor
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-class App(wx.wxApp):
-    """PyAlaModeTest standalone application."""
-
-    def __init__(self, filename=None):
-        self.filename = filename
-        wx.wxApp.__init__(self, redirect=False)
-
-    def OnInit(self):
-        wx.wxInitAllImageHandlers()
-        self.frame = editor.EditorShellNotebookFrame(filename=self.filename)
-        self.frame.Show()
-        self.SetTopWindow(self.frame)
-        return True
-
-def main(filename=None):
-    app = App(filename)
-    app.MainLoop()
-
-if __name__ == '__main__':
-    filename = None
-    if len(sys.argv) > 1:
-        filename = os.path.realpath(sys.argv[1])
-    main(filename)

wxPython/wxPython/py/PyCrust.py

@@ -1,78 +0,0 @@
-"""PyCrust is a python shell and namespace browser application."""
-
-# The next two lines, and the other code below that makes use of
-# ``__main__`` and ``original``, serve the purpose of cleaning up the
-# main namespace to look as much as possible like the regular Python
-# shell environment.
-import __main__
-original = __main__.__dict__.keys()
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class App(wx.wxApp):
-    """PyCrust standalone application."""
-
-    def OnInit(self):
-        from wxPython import wx
-        wx.wxInitAllImageHandlers()
-        locals = __main__.__dict__
-        from crust import CrustFrame
-        self.frame = CrustFrame(locals=locals)
-        self.frame.SetSize((800, 600))
-        self.frame.Show()
-        self.SetTopWindow(self.frame)
-        return True
-
-'''
-The main() function needs to handle being imported, such as with the
-pycrust script that wxPython installs:
-
-    #!/usr/bin/env python
-
-    from wx.py.PyCrust import main
-    main()
-'''
-
-def main():
-    """The main function for the PyCrust program."""
-    # Cleanup the main namespace, leaving the App class.
-    import __main__
-    md = __main__.__dict__
-    keepers = original
-    keepers.append('App')
-    for key in md.keys():
-        if key not in keepers:
-            del md[key]
-    # Create an application instance.
-    app = App(0)
-    # Mimic the contents of the standard Python shell's sys.path.
-    import sys
-    if sys.path[0]:
-        sys.path[0] = ''
-    # Add the application object to the sys module's namespace.
-    # This allows a shell user to do:
-    # >>> import sys
-    # >>> sys.app.whatever
-    sys.app = app
-    del sys
-    # Cleanup the main namespace some more.
-    if md.has_key('App') and md['App'] is App:
-        del md['App']
-    if md.has_key('__main__') and md['__main__'] is __main__:
-        del md['__main__']
-    # Start the wxPython event loop.
-    app.MainLoop()
-
-if __name__ == '__main__':
-    main()

wxPython/wxPython/py/PyFilling.py

@@ -1,44 +0,0 @@
-"""PyFilling is a python namespace inspection application."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-# We use this object to get more introspection when run standalone.
-app = None
-
-import filling
-
-# These are imported just to have something interesting to inspect.
-import crust
-import interpreter
-import introspect
-import pseudo
-import shell
-
-import sys
-from wxPython import wx
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class App(filling.App):
-    def OnInit(self):
-        filling.App.OnInit(self)
-        self.root = self.fillingFrame.filling.tree.root
-        return True
-
-def main():
-    """Create and run the application."""
-    global app
-    app = App(0)
-    app.fillingFrame.filling.tree.Expand(app.root)
-    app.MainLoop()
-
-
-if __name__ == '__main__':
-    main()

wxPython/wxPython/py/PyShell.py

@@ -1,79 +0,0 @@
-"""PyShell is a python shell application."""
-
-# The next two lines, and the other code below that makes use of
-# ``__main__`` and ``original``, serve the purpose of cleaning up the
-# main namespace to look as much as possible like the regular Python
-# shell environment.
-import __main__
-original = __main__.__dict__.keys()
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class App(wx.wxApp):
-    """PyShell standalone application."""
-
-    def OnInit(self):
-        from wxPython import wx
-        wx.wxInitAllImageHandlers()
-        locals = __main__.__dict__
-        from shell import ShellFrame
-        self.frame = ShellFrame(locals=locals)
-        self.frame.SetSize((750, 525))
-        self.frame.Show()
-        self.SetTopWindow(self.frame)
-        self.frame.shell.SetFocus()
-        return True
-
-'''
-The main() function needs to handle being imported, such as with the
-pyshell script that wxPython installs:
-
-    #!/usr/bin/env python
-
-    from wx.py.PyShell import main
-    main()
-'''
-
-def main():
-    """The main function for the PyShell program."""
-    # Cleanup the main namespace, leaving the App class.
-    import __main__
-    md = __main__.__dict__
-    keepers = original
-    keepers.append('App')
-    for key in md.keys():
-        if key not in keepers:
-            del md[key]
-    # Create an application instance.
-    app = App(0)
-    # Cleanup the main namespace some more.
-    if md.has_key('App') and md['App'] is App:
-        del md['App']
-    if md.has_key('__main__') and md['__main__'] is __main__:
-        del md['__main__']
-    # Mimic the contents of the standard Python shell's sys.path.
-    import sys
-    if sys.path[0]:
-        sys.path[0] = ''
-    # Add the application object to the sys module's namespace.
-    # This allows a shell user to do:
-    # >>> import sys
-    # >>> sys.app.whatever
-    sys.app = app
-    del sys
-    # Start the wxPython event loop.
-    app.MainLoop()
-
-if __name__ == '__main__':
-    main()

wxPython/wxPython/py/PyWrap.py

@@ -1,56 +0,0 @@
-"""PyWrap is a command line utility that runs a wxPython program with
-additional runtime-tools, such as PyCrust."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import os
-import sys
-from wxPython import wx
-from crust import CrustFrame as Frame
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-def wrap(app):
-    wx.wxInitAllImageHandlers()
-    frame = Frame()
-    frame.SetSize((750, 525))
-    frame.Show(True)
-    frame.shell.interp.locals['app'] = app
-    app.MainLoop()
-
-
-def main(modulename=None):
-    sys.path.insert(0, os.curdir)
-    if not modulename:
-        if len(sys.argv) < 2:
-            print "Please specify a module name."
-            raise SystemExit
-        modulename = sys.argv[1]
-        if modulename.endswith('.py'):
-            modulename = modulename[:-3]
-    module = __import__(modulename)
-    # Find the App class.
-    App = None
-    d = module.__dict__
-    for item in d.keys():
-        try:
-            if issubclass(d[item], wx.wxApp):
-                App = d[item]
-        except (NameError, TypeError):
-            pass
-    if App is None:
-        print "No App class found."
-        raise SystemExit
-    app = App()
-    wrap(app)
-
-
-if __name__ == '__main__':
-    main(sys.argv)

wxPython/wxPython/py/README.txt

@@ -1,79 +0,0 @@
-=====================================
- PyCrust - The Flakiest Python Shell
-=====================================
-
-Half-baked by Patrick K. O'Brien (pobrien@orbtech.com)
-
-Orbtech - "Your source for Python programming expertise."
-Sample all our half-baked Python goods at www.orbtech.com.
-
-
-What is PyCrust?
-----------------
-
-PyCrust is an interactive Python environment written in Python.
-PyCrust components can run standalone or be integrated into other
-development environments and/or other Python applications.
-
-PyCrust comes with an interactive Python shell (PyShell), an
-interactive namespace/object tree control (PyFilling) and an
-integrated, split-window combination of the two (PyCrust).
-
-
-What is PyCrust good for?
--------------------------
-
-Have you ever tried to bake a pie without one? Well, you shouldn't
-build a Python program without a PyCrust either.
-
-
-What else do I need to use PyCrust?
------------------------------------
-
-PyCrust requires Python 2.1.3 or later, and wxPython 2.4 or later.
-PyCrust uses wxPython and the Scintilla wrapper (wxStyledTextCtrl).
-Python is available at http://www.python.org/.  wxPython is available
-at http://www.wxpython.org/.
-
-
-Where can I get the latest version of PyCrust?
-----------------------------------------------
-
-The latest production version ships with wxPython.  The latest
-developer version is available in CVS at:
-http://sourceforge.net/cvs/?group_id=31263
-
-
-Where is the PyCrust project hosted?
-------------------------------------
-
-At SourceForge, of course. The SourceForge summary page:
-http://sourceforge.net/projects/pycrust/
-
-
-I found a bug in PyCrust, what do I do with it?
------------------------------------------------
-
-You can send it to me at pobrien@orbtech.com.
-
-
-I want a new feature added to PyCrust. Will you do it?
-------------------------------------------------------
-
-Flattery and money will get you anything. Short of that, you can send
-me a request and I'll see what I can do.
-
-
-Does PyCrust have a mailing list full of wonderful people?
-----------------------------------------------------------
-
-As a matter of fact, we do. Join the PyCrust mailing lists at:
-http://sourceforge.net/mail/?group_id=31263
-
-
-What is the CVS information for this README file?
--------------------------------------------------
-
-$Date$
-$Revision$
-$Id$

wxPython/wxPython/py/__init__.py

@@ -1,20 +0,0 @@
-"""Python package."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import buffer
-import crust
-import dispatcher
-import document
-import editor
-import editwindow
-import filling
-import frame
-import images
-import interpreter
-import introspect
-import pseudo
-import shell
-import version

wxPython/wxPython/py/buffer.py

@@ -1,146 +0,0 @@
-"""Buffer class."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-from interpreter import Interpreter
-import imp
-import os
-import sys
-
-import document
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class Buffer:
-    """Buffer class."""
-
-    id = 0
-
-    def __init__(self, filename=None):
-        """Create a Buffer instance."""
-        Buffer.id += 1
-        self.id = Buffer.id
-        self.interp = Interpreter(locals={})
-        self.name = ''
-        self.editors = {}
-        self.editor = None
-        self.modules = sys.modules.keys()
-        self.syspath = sys.path[:]
-        while True:
-            try:
-                self.syspath.remove('')
-            except ValueError:
-                break
-        while True:
-            try:
-                self.syspath.remove('.')
-            except ValueError:
-                break
-        self.open(filename)
-
-    def addEditor(self, editor):
-        """Add an editor."""
-        self.editor = editor
-        self.editors[editor.id] = editor
-
-    def hasChanged(self):
-        """Return True if text in editor has changed since last save."""
-        if self.editor:
-            return self.editor.hasChanged()
-        else:
-            return False
-
-    def new(self, filepath):
-        """New empty buffer."""
-        if not filepath:
-            return
-        if os.path.exists(filepath):
-            self.confirmed = self.overwriteConfirm(filepath)
-        else:
-            self.confirmed = True
-
-    def open(self, filename):
-        """Open file into buffer."""
-        self.doc = document.Document(filename)
-        self.name = self.doc.filename or ('Untitled:' + str(self.id))
-        self.modulename = self.doc.filebase
-        # XXX This should really make sure filedir is first item in syspath.
-        # XXX Or maybe this should be moved to the update namespace method.
-        if self.doc.filedir and self.doc.filedir not in self.syspath:
-            # To create the proper context for updateNamespace.
-            self.syspath.insert(0, self.doc.filedir)
-        if self.doc.filepath and os.path.exists(self.doc.filepath):
-            self.confirmed = True
-        if self.editor:
-            text = self.doc.read()
-            self.editor._setBuffer(buffer=self, text=text)
-
-    def overwriteConfirm(filepath):
-        """Confirm overwriting an existing file."""
-        return False
-
-    def save(self):
-        """Save buffer."""
-        filepath = self.doc.filepath
-        if not filepath:
-            return  # XXX Get filename
-        if not os.path.exists(filepath):
-            self.confirmed = True
-        if not self.confirmed:
-            self.confirmed = self.overwriteConfirm(filepath)
-        if self.confirmed:
-            self.doc.write(self.editor.getText())
-            if self.editor:
-                self.editor.setSavePoint()
-
-    def saveAs(self, filename):
-        """Save buffer."""
-        self.doc = document.Document(filename)
-        self.name = self.doc.filename
-        self.modulename = self.doc.filebase
-        self.save()
-
-    def updateNamespace(self):
-        """Update the namespace for autocompletion and calltips.
-
-        Return True if updated, False if there was an error."""
-        if not self.interp or not hasattr(self.editor, 'getText'):
-            return False
-        syspath = sys.path
-        sys.path = self.syspath
-        text = self.editor.getText()
-        text = text.replace('\r\n', '\n')
-        text = text.replace('\r', '\n')
-        name = self.modulename or self.name
-        module = imp.new_module(name)
-        newspace = module.__dict__.copy()
-        try:
-            try:
-                code = compile(text, name, 'exec')
-            except:
-                raise
-#                return False
-            try:
-                exec code in newspace
-            except:
-                raise
-#                return False
-            else:
-                # No problems, so update the namespace.
-                self.interp.locals.clear()
-                self.interp.locals.update(newspace)
-                return True
-        finally:
-            sys.path = syspath
-            for m in sys.modules.keys():
-                if m not in self.modules:
-                    del sys.modules[m]

wxPython/wxPython/py/crust.py

@@ -1,182 +0,0 @@
-"""PyCrust Crust combines the shell and filling into one control."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-import os
-import sys
-
-import dispatcher
-from filling import Filling
-import frame
-from shell import Shell
-from version import VERSION
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class Crust(wx.wxSplitterWindow):
-    """PyCrust Crust based on wxSplitterWindow."""
-
-    name = 'PyCrust Crust'
-    revision = __revision__
-
-    def __init__(self, parent, id=-1, pos=wx.wxDefaultPosition, 
-                 size=wx.wxDefaultSize, style=wx.wxSP_3D,
-                 name='Crust Window', rootObject=None, rootLabel=None,
-                 rootIsNamespace=True, intro='', locals=None, 
-                 InterpClass=None, *args, **kwds):
-        """Create a PyCrust Crust instance."""
-        wx.wxSplitterWindow.__init__(self, parent, id, pos, size, style, name)
-        self.shell = Shell(parent=self, introText=intro, 
-                           locals=locals, InterpClass=InterpClass, 
-                           *args, **kwds)
-        self.editor = self.shell
-        if rootObject is None:
-            rootObject = self.shell.interp.locals
-        self.notebook = wx.wxNotebook(parent=self, id=-1)
-        self.shell.interp.locals['notebook'] = self.notebook
-        self.filling = Filling(parent=self.notebook, 
-                               rootObject=rootObject, 
-                               rootLabel=rootLabel, 
-                               rootIsNamespace=rootIsNamespace)
-        # Add 'filling' to the interpreter's locals.
-        self.shell.interp.locals['filling'] = self.filling
-        self.notebook.AddPage(page=self.filling, text='Namespace', select=True)
-        self.calltip = Calltip(parent=self.notebook)
-        self.notebook.AddPage(page=self.calltip, text='Calltip')
-        self.sessionlisting = SessionListing(parent=self.notebook)
-        self.notebook.AddPage(page=self.sessionlisting, text='Session')
-        self.dispatcherlisting = DispatcherListing(parent=self.notebook)
-        self.notebook.AddPage(page=self.dispatcherlisting, text='Dispatcher')
-        from wxd import wx_
-        self.wxdocs = Filling(parent=self.notebook, 
-                              rootObject=wx_,
-                              rootLabel='wx', 
-                              rootIsNamespace=False,
-                              static=True)
-        self.notebook.AddPage(page=self.wxdocs, text='wxPython Docs')
-        from wxd import stc_
-        self.stcdocs = Filling(parent=self.notebook, 
-                               rootObject=stc_.StyledTextCtrl,
-                               rootLabel='StyledTextCtrl', 
-                               rootIsNamespace=False,
-                               static=True)
-        self.notebook.AddPage(page=self.stcdocs, text='StyledTextCtrl Docs')
-        self.SplitHorizontally(self.shell, self.notebook, 300)
-        self.SetMinimumPaneSize(1)
-
-
-class Calltip(wx.wxTextCtrl):
-    """Text control containing the most recent shell calltip."""
-
-    def __init__(self, parent=None, id=-1):
-        style = wx.wxTE_MULTILINE | wx.wxTE_READONLY | wx.wxTE_RICH2
-        wx.wxTextCtrl.__init__(self, parent=parent, id=id, style=style)
-        self.SetBackgroundColour(wx.wxColour(255, 255, 232))
-        dispatcher.connect(receiver=self.display, signal='Shell.calltip')
-
-    def display(self, calltip):
-        """Receiver for Shell.calltip signal."""
-        self.SetValue(calltip)
-
-
-class SessionListing(wx.wxTextCtrl):
-    """Text control containing all commands for session."""
-
-    def __init__(self, parent=None, id=-1):
-        style = wx.wxTE_MULTILINE | wx.wxTE_READONLY | \
-                wx.wxTE_RICH2 | wx.wxTE_DONTWRAP
-        wx.wxTextCtrl.__init__(self, parent=parent, id=id, style=style)
-        dispatcher.connect(receiver=self.push, signal='Interpreter.push')
-
-    def push(self, command, more):
-        """Receiver for Interpreter.push signal."""
-        if command and not more:
-            self.SetInsertionPointEnd()
-            start, end = self.GetSelection()
-            if start != end:
-                self.SetSelection(0, 0)
-            self.AppendText(command + '\n')
-
-
-class DispatcherListing(wx.wxTextCtrl):
-    """Text control containing all dispatches for session."""
-
-    def __init__(self, parent=None, id=-1):
-        style = wx.wxTE_MULTILINE | wx.wxTE_READONLY | \
-                wx.wxTE_RICH2 | wx.wxTE_DONTWRAP
-        wx.wxTextCtrl.__init__(self, parent=parent, id=id, style=style)
-        dispatcher.connect(receiver=self.spy)
-
-    def spy(self, signal, sender):
-        """Receiver for Any signal from Any sender."""
-        text = '%r from %s' % (signal, sender)
-        self.SetInsertionPointEnd()
-        start, end = self.GetSelection()
-        if start != end:
-            self.SetSelection(0, 0)
-        self.AppendText(text + '\n')
-
-
-class CrustFrame(frame.Frame):
-    """Frame containing all the PyCrust components."""
-
-    name = 'PyCrust Frame'
-    revision = __revision__
-
-    def __init__(self, parent=None, id=-1, title='PyCrust',
-                 pos=wx.wxDefaultPosition, size=wx.wxDefaultSize,
-                 style=wx.wxDEFAULT_FRAME_STYLE,
-                 rootObject=None, rootLabel=None, rootIsNamespace=True,
-                 locals=None, InterpClass=None, *args, **kwds):
-        """Create a PyCrust CrustFrame instance."""
-        frame.Frame.__init__(self, parent, id, title, pos, size, style)
-        intro = 'PyCrust %s - The Flakiest Python Shell' % VERSION
-        intro += '\nSponsored by Orbtech - '
-        intro += 'Your source for Python programming expertise.'
-        self.SetStatusText(intro.replace('\n', ', '))
-        self.crust = Crust(parent=self, intro=intro,
-                           rootObject=rootObject,
-                           rootLabel=rootLabel,
-                           rootIsNamespace=rootIsNamespace,
-                           locals=locals,
-                           InterpClass=InterpClass, *args, **kwds)
-        self.shell = self.crust.shell
-        # Override the filling so that status messages go to the status bar.
-        self.crust.filling.tree.setStatusText = self.SetStatusText
-        # Override the shell so that status messages go to the status bar.
-        self.shell.setStatusText = self.SetStatusText
-        # Fix a problem with the sash shrinking to nothing.
-        self.crust.filling.SetSashPosition(200)
-        # Set focus to the shell editor.
-        self.shell.SetFocus()
-
-    def OnClose(self, event):
-        """Event handler for closing."""
-        self.crust.shell.destroy()
-        self.Destroy()
-
-    def OnAbout(self, event):
-        """Display an About window."""
-        title = 'About PyCrust'
-        text = 'PyCrust %s\n\n' % VERSION + \
-               'Yet another Python shell, only flakier.\n\n' + \
-               'Half-baked by Patrick K. O\'Brien,\n' + \
-               'the other half is still in the oven.\n\n' + \
-               'Shell Revision: %s\n' % self.shell.revision + \
-               'Interpreter Revision: %s\n\n' % self.shell.interp.revision + \
-               'Python Version: %s\n' % sys.version.split()[0] + \
-               'wxPython Version: %s\n' % wx.__version__ + \
-               'Platform: %s\n' % sys.platform
-        dialog = wx.wxMessageDialog(self, text, title,
-                                    wx.wxOK | wx.wxICON_INFORMATION)
-        dialog.ShowModal()
-        dialog.Destroy()

wxPython/wxPython/py/dispatcher.py

@@ -1,266 +0,0 @@
-"""Provides global signal dispatching services."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import exceptions
-import types
-import weakref
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class DispatcherError(exceptions.Exception):
-    def __init__(self, args=None):
-        self.args = args
-
-
-class Parameter:
-    """Used to represent default parameter values."""
-    def __repr__(self):
-        return self.__class__.__name__
-
-class Any(Parameter): pass
-Any = Any()
-
-class Anonymous(Parameter): pass
-Anonymous = Anonymous()
-
-
-connections = {}
-senders = {}
-_boundMethods = weakref.WeakKeyDictionary()
-
-
-def connect(receiver, signal=Any, sender=Any, weak=True):
-    """Connect receiver to sender for signal.
-    
-    If sender is Any, receiver will receive signal from any sender.
-    If signal is Any, receiver will receive any signal from sender.
-    If sender is None, receiver will receive signal from Anonymous.
-    If signal is Any and sender is None, receiver will receive any 
-        signal from Anonymous.
-    If signal is Any and sender is Any, receiver will receive any 
-        signal from any sender.
-    If weak is true, weak references will be used."""
-    if signal is None:
-        raise DispatcherError, 'signal cannot be None'
-    if weak:
-        receiver = safeRef(receiver)
-    senderkey = id(sender)
-    signals = {}
-    if connections.has_key(senderkey):
-        signals = connections[senderkey]
-    else:
-        connections[senderkey] = signals
-        # Keep track of senders for cleanup.
-        if sender not in (None, Any):
-            def remove(object, senderkey=senderkey):
-                _removeSender(senderkey=senderkey)
-            # Skip objects that can not be weakly referenced, which means
-            # they won't be automatically cleaned up, but that's too bad.
-            try:
-                weakSender = weakref.ref(sender, remove)
-                senders[senderkey] = weakSender
-            except:
-                pass
-    receivers = []
-    if signals.has_key(signal):
-        receivers = signals[signal]
-    else:
-        signals[signal] = receivers
-    try:
-        receivers.remove(receiver)
-    except ValueError:
-        pass
-    receivers.append(receiver)
-
-def disconnect(receiver, signal=Any, sender=Any, weak=True):
-    """Disconnect receiver from sender for signal.
-    
-    Disconnecting is not required. The use of disconnect is the same as for
-    connect, only in reverse. Think of it as undoing a previous connection."""
-    if signal is None:
-        raise DispatcherError, 'signal cannot be None'
-    if weak:
-        receiver = safeRef(receiver)
-    senderkey = id(sender)
-    try:
-        receivers = connections[senderkey][signal]
-    except KeyError:
-        raise DispatcherError, \
-              'No receivers for signal %r from sender %s' % (signal, sender)
-    try:
-        receivers.remove(receiver)
-    except ValueError:
-        raise DispatcherError, \
-              'No connection to receiver %s for signal %r from sender %s' % \
-              (receiver, signal, sender)
-    _cleanupConnections(senderkey, signal)
-
-def send(signal, sender=Anonymous, **kwds):
-    """Send signal from sender to all connected receivers.
-    
-    Return a list of tuple pairs [(receiver, response), ... ].
-    If sender is not specified, signal is sent anonymously."""
-    senderkey = id(sender)
-    anykey = id(Any)
-    # Get receivers that receive *this* signal from *this* sender.
-    receivers = []
-    try:
-        receivers.extend(connections[senderkey][signal])
-    except KeyError:
-        pass
-    # Add receivers that receive *any* signal from *this* sender.
-    anyreceivers = []
-    try:
-        anyreceivers = connections[senderkey][Any]
-    except KeyError:
-        pass
-    for receiver in anyreceivers:
-        if receivers.count(receiver) == 0:
-            receivers.append(receiver)
-    # Add receivers that receive *this* signal from *any* sender.
-    anyreceivers = []
-    try:
-        anyreceivers = connections[anykey][signal]
-    except KeyError:
-        pass
-    for receiver in anyreceivers:
-        if receivers.count(receiver) == 0:
-            receivers.append(receiver)
-    # Add receivers that receive *any* signal from *any* sender.
-    anyreceivers = []
-    try:
-        anyreceivers = connections[anykey][Any]
-    except KeyError:
-        pass
-    for receiver in anyreceivers:
-        if receivers.count(receiver) == 0:
-            receivers.append(receiver)
-    # Call each receiver with whatever arguments it can accept.
-    # Return a list of tuple pairs [(receiver, response), ... ].
-    responses = []
-    for receiver in receivers:
-        if type(receiver) is weakref.ReferenceType \
-        or isinstance(receiver, BoundMethodWeakref):
-            # Dereference the weak reference.
-            receiver = receiver()
-            if receiver is None:
-                # This receiver is dead, so skip it.
-                continue
-        response = _call(receiver, signal=signal, sender=sender, **kwds)
-        responses += [(receiver, response)]
-    return responses
-
-def _call(receiver, **kwds):
-    """Call receiver with only arguments it can accept."""
-##    if type(receiver) is types.InstanceType:
-    if hasattr(receiver, '__call__') and \
-       (hasattr(receiver.__call__, 'im_func') or hasattr(receiver.__call__, 'im_code')):
-        # receiver is a class instance; assume it is callable.
-        # Reassign receiver to the actual method that will be called.
-        receiver = receiver.__call__
-    if hasattr(receiver, 'im_func'):
-        # receiver is a method. Drop the first argument, usually 'self'.
-        fc = receiver.im_func.func_code
-        acceptable = fc.co_varnames[1:fc.co_argcount]
-    elif hasattr(receiver, 'func_code'):
-        # receiver is a function.
-        fc = receiver.func_code
-        acceptable = fc.co_varnames[0:fc.co_argcount]
-    else:
-        raise DispatcherError, 'Unknown receiver %s of type %s' % (receiver, type(receiver))
-    if not (fc.co_flags & 8):
-        # fc does not have a **kwds type parameter, therefore 
-        # remove unacceptable arguments.
-        for arg in kwds.keys():
-            if arg not in acceptable:
-                del kwds[arg]
-    return receiver(**kwds)
-
-
-def safeRef(object):
-    """Return a *safe* weak reference to a callable object."""
-    if hasattr(object, 'im_self'):
-        if object.im_self is not None:
-            # Turn a bound method into a BoundMethodWeakref instance.
-            # Keep track of these instances for lookup by disconnect().
-            selfkey = object.im_self
-            funckey = object.im_func
-            if not _boundMethods.has_key(selfkey):
-                _boundMethods[selfkey] = weakref.WeakKeyDictionary()
-            if not _boundMethods[selfkey].has_key(funckey):
-                _boundMethods[selfkey][funckey] = \
-                BoundMethodWeakref(boundMethod=object)
-            return _boundMethods[selfkey][funckey]
-    return weakref.ref(object, _removeReceiver)
-
-
-class BoundMethodWeakref:
-    """BoundMethodWeakref class."""
-
-    def __init__(self, boundMethod):
-        """Return a weak-reference-like instance for a bound method."""
-        self.isDead = 0
-        def remove(object, self=self):
-            """Set self.isDead to true when method or instance is destroyed."""
-            self.isDead = 1
-            _removeReceiver(receiver=self)
-        self.weakSelf = weakref.ref(boundMethod.im_self, remove)
-        self.weakFunc = weakref.ref(boundMethod.im_func, remove)
-
-    def __repr__(self):
-        """Return the closest representation."""
-        return '<bound method weakref for %s.%s>' % (self.weakSelf, self.weakFunc)
-
-    def __call__(self):
-        """Return a strong reference to the bound method."""
-        if self.isDead:
-            return None
-        else:
-            object = self.weakSelf()
-            method = self.weakFunc().__name__
-            try:  # wxPython hack to handle wxDead objects.
-                return getattr(object, method)
-            except AttributeError:
-##                 _removeReceiver(receiver=self)
-                return None
-
-
-def _removeReceiver(receiver):
-    """Remove receiver from connections."""
-    for senderkey in connections.keys():
-        for signal in connections[senderkey].keys():
-            receivers = connections[senderkey][signal]
-            try:
-                receivers.remove(receiver)
-            except:
-                pass
-            _cleanupConnections(senderkey, signal)
-            
-def _cleanupConnections(senderkey, signal):
-    """Delete any empty signals for senderkey. Delete senderkey if empty."""
-    receivers = connections[senderkey][signal]
-    if not receivers:
-        # No more connected receivers. Therefore, remove the signal.
-        signals = connections[senderkey]
-        del signals[signal]
-        if not signals:
-            # No more signal connections. Therefore, remove the sender.
-            _removeSender(senderkey)
-            
-def _removeSender(senderkey):
-    """Remove senderkey from connections."""
-    del connections[senderkey]
-    # Senderkey will only be in senders dictionary if sender 
-    # could be weakly referenced.
-    try:
-        del senders[senderkey]
-    except:
-        pass

wxPython/wxPython/py/document.py

@@ -1,49 +0,0 @@
-"""Document class."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import os
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class Document:
-    """Document class."""
-
-    def __init__(self, filename=None):
-        """Create a Document instance."""
-        self.filename = filename
-        self.filepath = None
-        self.filedir = None
-        self.filebase = None
-        self.fileext = None
-        if self.filename:
-            self.filepath = os.path.realpath(self.filename)
-            self.filedir, self.filename = os.path.split(self.filepath)
-            self.filebase, self.fileext = os.path.splitext(self.filename)
-
-    def read(self):
-        """Return contents of file."""
-        if self.filepath and os.path.exists(self.filepath):
-            f = file(self.filepath, 'rb')
-            try:
-                return f.read()
-            finally:
-                f.close()
-        else:
-            return ''
-
-    def write(self, text):
-        """Write text to file."""
-        try:
-            f = file(self.filepath, 'wb')
-            f.write(text)
-        finally:
-            if f:
-                f.close()

wxPython/wxPython/py/editor.py

@@ -1,839 +0,0 @@
-"""PyAlaCarte and PyAlaMode editors."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-from buffer import Buffer
-import crust
-import dispatcher
-import editwindow
-import frame
-from shell import Shell
-import version
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class EditorFrame(frame.Frame):
-    """Frame containing one editor."""
-
-    def __init__(self, parent=None, id=-1, title='PyAlaCarte',
-                 pos=wx.wxDefaultPosition, size=(800, 600), 
-                 style=wx.wxDEFAULT_FRAME_STYLE, filename=None):
-        """Create EditorFrame instance."""
-        frame.Frame.__init__(self, parent, id, title, pos, size, style)
-        self.buffers = {}
-        self.buffer = None  # Current buffer.
-        self.editor = None
-        self._defaultText = title + ' - the tastiest Python editor.'
-        self._statusText = self._defaultText
-        self.SetStatusText(self._statusText)
-        wx.EVT_IDLE(self, self.OnIdle)
-        self._setup()
-        if filename:
-            self.bufferCreate(filename)
-
-    def _setup(self):
-        """Setup prior to first buffer creation.
-
-        Useful for subclasses."""
-        pass
-
-    def setEditor(self, editor):
-        self.editor = editor
-        self.buffer = self.editor.buffer
-        self.buffers[self.buffer.id] = self.buffer
-
-    def OnAbout(self, event):
-        """Display an About window."""
-        title = 'About PyAlaCarte'
-        text = 'Another fine, flaky program.'
-        dialog = wx.wxMessageDialog(self, text, title,
-                                    wx.wxOK | wx.wxICON_INFORMATION)
-        dialog.ShowModal()
-        dialog.Destroy()
-
-    def OnClose(self, event):
-        """Event handler for closing."""
-        for buffer in self.buffers.values():
-            self.buffer = buffer
-            if buffer.hasChanged():
-                cancel = self.bufferSuggestSave()
-                if cancel and event.CanVeto():
-                    event.Veto()
-                    return
-        self.Destroy()
-
-    def OnIdle(self, event):
-        """Event handler for idle time."""
-        self._updateStatus()
-        if hasattr(self, 'notebook'):
-            self._updateTabText()
-        self._updateTitle()
-        event.Skip()
-
-    def _updateStatus(self):
-        """Show current status information."""
-        if self.editor and hasattr(self.editor, 'getStatus'):
-            status = self.editor.getStatus()
-            text = 'File: %s  |  Line: %d  |  Column: %d' % status
-        else:
-            text = self._defaultText
-        if text != self._statusText:
-            self.SetStatusText(text)
-            self._statusText = text
-
-    def _updateTabText(self):
-        """Show current buffer information on notebook tab."""
-##         suffix = ' **'
-##         notebook = self.notebook
-##         selection = notebook.GetSelection()
-##         if selection == -1:
-##             return
-##         text = notebook.GetPageText(selection)
-##         window = notebook.GetPage(selection)
-##         if window.editor and window.editor.buffer.hasChanged():
-##             if text.endswith(suffix):
-##                 pass
-##             else:
-##                 notebook.SetPageText(selection, text + suffix)
-##         else:
-##             if text.endswith(suffix):
-##                 notebook.SetPageText(selection, text[:len(suffix)])
-
-    def _updateTitle(self):
-        """Show current title information."""
-        title = self.GetTitle()
-        if self.bufferHasChanged():
-            if title.startswith('* '):
-                pass
-            else:
-                self.SetTitle('* ' + title)
-        else:
-            if title.startswith('* '):
-                self.SetTitle(title[2:])
-        
-    def hasBuffer(self):
-        """Return True if there is a current buffer."""
-        if self.buffer:
-            return True
-        else:
-            return False
-
-    def bufferClose(self):
-        """Close buffer."""
-        if self.bufferHasChanged():
-            cancel = self.bufferSuggestSave()
-            if cancel:
-                return cancel
-        self.bufferDestroy()
-        cancel = False
-        return cancel
-
-    def bufferCreate(self, filename=None):
-        """Create new buffer."""
-        self.bufferDestroy()
-        buffer = Buffer()
-        self.panel = panel = wx.wxPanel(parent=self, id=-1)
-        editor = Editor(parent=panel)
-        panel.editor = editor
-        sizer = wx.wxBoxSizer(wx.wxVERTICAL)
-        sizer.Add(editor.window, 1, wx.wxEXPAND)
-        panel.SetSizer(sizer)
-        panel.SetAutoLayout(True)
-        sizer.Layout()
-        buffer.addEditor(editor)
-        buffer.open(filename)
-        self.setEditor(editor)
-        self.editor.setFocus()
-
-    def bufferDestroy(self):
-        """Destroy the current buffer."""
-        if self.buffer:
-            for editor in self.buffer.editors.values():
-                editor.destroy()
-            self.editor = None
-            del self.buffers[self.buffer.id]
-            self.buffer = None
-            self.panel.Destroy()
-
-    def bufferHasChanged(self):
-        """Return True if buffer has changed since last save."""
-        if self.buffer:
-            return self.buffer.hasChanged()
-        else:
-            return False
-
-    def bufferNew(self):
-        """Create new buffer."""
-        if self.bufferHasChanged():
-            cancel = self.bufferSuggestSave()
-            if cancel:
-                return cancel
-        self.bufferCreate()
-        cancel = False
-        return cancel
-
-    def bufferOpen(self):
-        """Open file in buffer."""
-        if self.bufferHasChanged():
-            cancel = self.bufferSuggestSave()
-            if cancel:
-                return cancel
-        filedir = ''
-        if self.buffer and self.buffer.doc.filedir:
-            filedir = self.buffer.doc.filedir
-        result = openSingle(directory=filedir)
-        if result.path:
-            self.bufferCreate(result.path)
-        cancel = False
-        return cancel
-
-##     def bufferPrint(self):
-##         """Print buffer."""
-##         pass
-
-##     def bufferRevert(self):
-##         """Revert buffer to version of file on disk."""
-##         pass
-
-    def bufferSave(self):
-        """Save buffer to its file."""
-        if self.buffer.doc.filepath:
-            self.buffer.save()
-            cancel = False
-        else:
-            cancel = self.bufferSaveAs()
-        return cancel
-
-    def bufferSaveAs(self):
-        """Save buffer to a new filename."""
-        if self.bufferHasChanged() and self.buffer.doc.filepath:
-            cancel = self.bufferSuggestSave()
-            if cancel:
-                return cancel
-        filedir = ''
-        if self.buffer and self.buffer.doc.filedir:
-            filedir = self.buffer.doc.filedir
-        result = saveSingle(directory=filedir)
-        if result.path:
-            self.buffer.saveAs(result.path)
-            cancel = False
-        else:
-            cancel = True
-        return cancel
-
-    def bufferSuggestSave(self):
-        """Suggest saving changes.  Return True if user selected Cancel."""
-        result = messageDialog(parent=None,
-                               message='%s has changed.\n'
-                                       'Would you like to save it first'
-                                       '?' % self.buffer.name,
-                               title='Save current file?')
-        if result.positive:
-            cancel = self.bufferSave()
-        else:
-            cancel = result.text == 'Cancel'
-        return cancel
-
-    def updateNamespace(self):
-        """Update the buffer namespace for autocompletion and calltips."""
-        if self.buffer.updateNamespace():
-            self.SetStatusText('Namespace updated')
-        else:
-            self.SetStatusText('Error executing, unable to update namespace')
-
-
-class EditorNotebookFrame(EditorFrame):
-    """Frame containing one or more editors in a notebook."""
-
-    def __init__(self, parent=None, id=-1, title='PyAlaMode',
-                 pos=wx.wxDefaultPosition, size=(800, 600), 
-                 style=wx.wxDEFAULT_FRAME_STYLE, filename=None):
-        """Create EditorNotebookFrame instance."""
-        self.notebook = None
-        EditorFrame.__init__(self, parent, id, title, pos,
-                             size, style, filename)
-        if self.notebook:
-            dispatcher.connect(receiver=self._editorChange,
-                               signal='EditorChange', sender=self.notebook)
-
-    def _setup(self):
-        """Setup prior to first buffer creation.
-
-        Called automatically by base class during init."""
-        self.notebook = EditorNotebook(parent=self)
-        intro = 'PyCrust %s' % version.VERSION
-        import imp
-        module = imp.new_module('__main__')
-        import __builtin__
-        module.__dict__['__builtins__'] = __builtin__
-        namespace = module.__dict__.copy()
-        self.crust = crust.Crust(parent=self.notebook, intro=intro, locals=namespace)
-        self.shell = self.crust.shell
-        # Override the filling so that status messages go to the status bar.
-        self.crust.filling.tree.setStatusText = self.SetStatusText
-        # Override the shell so that status messages go to the status bar.
-        self.shell.setStatusText = self.SetStatusText
-        # Fix a problem with the sash shrinking to nothing.
-        self.crust.filling.SetSashPosition(200)
-        self.notebook.AddPage(page=self.crust, text='PyCrust', select=True)
-        self.setEditor(self.crust.editor)
-        self.crust.editor.SetFocus()
-
-    def _editorChange(self, editor):
-        """Editor change signal receiver."""
-        self.setEditor(editor)
-
-    def OnAbout(self, event):
-        """Display an About window."""
-        title = 'About PyAlaMode'
-        text = 'Another fine, flaky program.'
-        dialog = wx.wxMessageDialog(self, text, title,
-                                    wx.wxOK | wx.wxICON_INFORMATION)
-        dialog.ShowModal()
-        dialog.Destroy()
-
-    def _updateTitle(self):
-        """Show current title information."""
-        pass
-##         title = self.GetTitle()
-##         if self.bufferHasChanged():
-##             if title.startswith('* '):
-##                 pass
-##             else:
-##                 self.SetTitle('* ' + title)
-##         else:
-##             if title.startswith('* '):
-##                 self.SetTitle(title[2:])
-        
-    def bufferCreate(self, filename=None):
-        """Create new buffer."""
-        buffer = Buffer()
-        panel = wx.wxPanel(parent=self.notebook, id=-1)
-        editor = Editor(parent=panel)
-        panel.editor = editor
-        sizer = wx.wxBoxSizer(wx.wxVERTICAL)
-        sizer.Add(editor.window, 1, wx.wxEXPAND)
-        panel.SetSizer(sizer)
-        panel.SetAutoLayout(True)
-        sizer.Layout()
-        buffer.addEditor(editor)
-        buffer.open(filename)
-        self.setEditor(editor)
-        self.notebook.AddPage(page=panel, text=self.buffer.name, select=True)
-        self.editor.setFocus()
-
-    def bufferDestroy(self):
-        """Destroy the current buffer."""
-        selection = self.notebook.GetSelection()
-##         print "Destroy Selection:", selection
-        if selection > 0:  # Don't destroy the PyCrust tab.
-            if self.buffer:
-                del self.buffers[self.buffer.id]
-                self.buffer = None  # Do this before DeletePage().
-            self.notebook.DeletePage(selection)
-
-    def bufferNew(self):
-        """Create new buffer."""
-        self.bufferCreate()
-        cancel = False
-        return cancel
-
-    def bufferOpen(self):
-        """Open file in buffer."""
-        filedir = ''
-        if self.buffer and self.buffer.doc.filedir:
-            filedir = self.buffer.doc.filedir
-        result = openMultiple(directory=filedir)
-        for path in result.paths:
-            self.bufferCreate(path)
-        cancel = False
-        return cancel
-
-
-class EditorNotebook(wx.wxNotebook):
-    """A notebook containing a page for each editor."""
-
-    def __init__(self, parent):
-        """Create EditorNotebook instance."""
-        wx.wxNotebook.__init__(self, parent, id=-1)
-        wx.EVT_NOTEBOOK_PAGE_CHANGING(self, self.GetId(),
-                                      self.OnPageChanging)
-        wx.EVT_NOTEBOOK_PAGE_CHANGED(self, self.GetId(),
-                                     self.OnPageChanged)
-        wx.EVT_IDLE(self, self.OnIdle)
-
-    def OnIdle(self, event):
-        """Event handler for idle time."""
-        self._updateTabText()
-        event.Skip()
-
-    def _updateTabText(self):
-        """Show current buffer display name on all but first tab."""
-        size = 3
-        changed = ' **'
-        unchanged = ' --'
-        selection = self.GetSelection()
-        if selection < 1:
-            return
-        text = self.GetPageText(selection)
-        window = self.GetPage(selection)
-        if not window.editor:
-            return
-        if text.endswith(changed) or text.endswith(unchanged):
-            name = text[:-size]
-        else:
-            name = text
-        if name != window.editor.buffer.name:
-            text = window.editor.buffer.name
-        if window.editor.buffer.hasChanged():
-            if text.endswith(changed):
-                text = None
-            elif text.endswith(unchanged):
-                text = text[:-size] + changed
-            else:
-                text += changed
-        else:
-            if text.endswith(changed):
-                text = text[:-size] + unchanged
-            elif text.endswith(unchanged):
-                text = None
-            else:
-                text += unchanged
-        if text is not None:
-            self.SetPageText(selection, text)
-            self.Refresh()  # Needed on Win98.
-
-    def OnPageChanging(self, event):
-        """Page changing event handler."""
-        event.Skip()
-
-    def OnPageChanged(self, event):
-        """Page changed event handler."""
-        new = event.GetSelection()
-        window = self.GetPage(new)
-        dispatcher.send(signal='EditorChange', sender=self,
-                        editor=window.editor)
-        window.SetFocus()
-        event.Skip()
-
-
-class EditorShellNotebookFrame(EditorNotebookFrame):
-    """Frame containing a notebook containing EditorShellNotebooks."""
-
-    def __init__(self, parent=None, id=-1, title='PyAlaModeTest',
-                 pos=wx.wxDefaultPosition, size=(600, 400), 
-                 style=wx.wxDEFAULT_FRAME_STYLE,
-                 filename=None, singlefile=False):
-        """Create EditorShellNotebookFrame instance."""
-        self._singlefile = singlefile
-        EditorNotebookFrame.__init__(self, parent, id, title, pos,
-                                     size, style, filename)
-
-    def _setup(self):
-        """Setup prior to first buffer creation.
-
-        Called automatically by base class during init."""
-        if not self._singlefile:
-            self.notebook = EditorNotebook(parent=self)
-
-    def OnAbout(self, event):
-        """Display an About window."""
-        title = 'About PyAlaModePlus'
-        text = 'Another fine, flaky program.'
-        dialog = wx.wxMessageDialog(self, text, title,
-                                    wx.wxOK | wx.wxICON_INFORMATION)
-        dialog.ShowModal()
-        dialog.Destroy()
-
-    def bufferCreate(self, filename=None):
-        """Create new buffer."""
-        if self._singlefile:
-            self.bufferDestroy()
-            notebook = EditorShellNotebook(parent=self,
-                                           filename=filename)
-            self.notebook = notebook
-        else:
-            notebook = EditorShellNotebook(parent=self.notebook,
-                                           filename=filename)
-        self.setEditor(notebook.editor)
-        if not self._singlefile:
-            self.notebook.AddPage(page=notebook, text=self.buffer.name,
-                                  select=True)
-        self.editor.setFocus()
-
-    def bufferDestroy(self):
-        """Destroy the current buffer."""
-        if self.buffer:
-            self.editor = None
-            del self.buffers[self.buffer.id]
-            self.buffer = None  # Do this before DeletePage().
-        if self._singlefile:
-            self.notebook.Destroy()
-            self.notebook = None
-        else:
-            selection = self.notebook.GetSelection()
-##             print "Destroy Selection:", selection
-            self.notebook.DeletePage(selection)
-
-    def bufferNew(self):
-        """Create new buffer."""
-        if self._singlefile and self.bufferHasChanged():
-            cancel = self.bufferSuggestSave()
-            if cancel:
-                return cancel
-        self.bufferCreate()
-        cancel = False
-        return cancel
-
-    def bufferOpen(self):
-        """Open file in buffer."""
-        if self._singlefile and self.bufferHasChanged():
-            cancel = self.bufferSuggestSave()
-            if cancel:
-                return cancel
-        filedir = ''
-        if self.buffer and self.buffer.doc.filedir:
-            filedir = self.buffer.doc.filedir
-        if self._singlefile:
-            result = openSingle(directory=filedir)
-            if result.path:
-                self.bufferCreate(result.path)
-        else:
-            result = openMultiple(directory=filedir)
-            for path in result.paths:
-                self.bufferCreate(path)
-        cancel = False
-        return cancel
-
-
-class EditorShellNotebook(wx.wxNotebook):
-    """A notebook containing an editor page and a shell page."""
-
-    def __init__(self, parent, filename=None):
-        """Create EditorShellNotebook instance."""
-        wx.wxNotebook.__init__(self, parent, id=-1)
-        usePanels = True
-        if usePanels:
-            editorparent = editorpanel = wx.wxPanel(self, -1)
-            shellparent = shellpanel = wx.wxPanel(self, -1)
-        else:
-            editorparent = self
-            shellparent = self
-        self.buffer = Buffer()
-        self.editor = Editor(parent=editorparent)
-        self.buffer.addEditor(self.editor)
-        self.buffer.open(filename)
-        self.shell = Shell(parent=shellparent, locals=self.buffer.interp.locals,
-                           style=wx.wxCLIP_CHILDREN | wx.wxSUNKEN_BORDER)
-        self.buffer.interp.locals.clear()
-        if usePanels:
-            self.AddPage(page=editorpanel, text='Editor', select=True)
-            self.AddPage(page=shellpanel, text='Shell')
-            # Setup sizers
-            editorsizer = wx.wxBoxSizer(wx.wxVERTICAL)
-            editorsizer.Add(self.editor.window, 1, wx.wxEXPAND)
-            editorpanel.SetSizer(editorsizer)
-            editorpanel.SetAutoLayout(True)
-            shellsizer = wx.wxBoxSizer(wx.wxVERTICAL)
-            shellsizer.Add(self.shell, 1, wx.wxEXPAND)
-            shellpanel.SetSizer(shellsizer)
-            shellpanel.SetAutoLayout(True)
-        else:
-            self.AddPage(page=self.editor.window, text='Editor', select=True)
-            self.AddPage(page=self.shell, text='Shell')
-        self.editor.setFocus()
-        wx.EVT_NOTEBOOK_PAGE_CHANGED(self, self.GetId(), self.OnPageChanged)
-
-    def OnPageChanged(self, event):
-        """Page changed event handler."""
-        selection = event.GetSelection()
-        if selection == 0:
-            self.editor.setFocus()
-        else:
-            self.shell.SetFocus()
-        event.Skip()
-
-    def SetFocus(self):
-        wx.wxNotebook.SetFocus(self)
-        selection = self.GetSelection()
-        if selection == 0:
-            self.editor.setFocus()
-        else:
-            self.shell.SetFocus()
-
-
-class Editor:
-    """Editor having an EditWindow."""
-
-    def __init__(self, parent, id=-1, pos=wx.wxDefaultPosition,
-                 size=wx.wxDefaultSize,
-                 style=wx.wxCLIP_CHILDREN | wx.wxSUNKEN_BORDER):
-        """Create Editor instance."""
-        self.window = EditWindow(self, parent, id, pos, size, style)
-        self.id = self.window.GetId()
-        self.buffer = None
-        # Assign handlers for keyboard events.
-        wx.EVT_CHAR(self.window, self.OnChar)
-        wx.EVT_KEY_DOWN(self.window, self.OnKeyDown)
-
-    def _setBuffer(self, buffer, text):
-        """Set the editor to a buffer.  Private callback called by buffer."""
-        self.buffer = buffer
-        self.autoCompleteKeys = buffer.interp.getAutoCompleteKeys()
-        self.clearAll()
-        self.setText(text)
-        self.emptyUndoBuffer()
-        self.setSavePoint()
-
-    def destroy(self):
-        """Destroy all editor objects."""
-        self.window.Destroy()
-
-    def clearAll(self):
-        self.window.ClearAll()
-
-    def emptyUndoBuffer(self):
-        self.window.EmptyUndoBuffer()
-
-    def getStatus(self):
-        """Return (filepath, line, column) status tuple."""
-        pos = self.window.GetCurrentPos()
-        line = self.window.LineFromPosition(pos) + 1
-        col = self.window.GetColumn(pos)
-        if self.buffer:
-            name = self.buffer.doc.filepath or self.buffer.name
-        else:
-            name = ''
-        status = (name, line, col)
-        return status
-
-    def getText(self):
-        """Return contents of editor."""
-        return self.window.GetText()
-
-    def hasChanged(self):
-        """Return True if contents have changed."""
-        return self.window.GetModify()
-
-    def setFocus(self):
-        """Set the input focus to the editor window."""
-        self.window.SetFocus()
-
-    def setSavePoint(self):
-        self.window.SetSavePoint()
-
-    def setText(self, text):
-        """Set contents of editor."""
-        self.window.SetText(text)
-
-    def OnChar(self, event):
-        """Keypress event handler.
-        
-        Only receives an event if OnKeyDown calls event.Skip() for the
-        corresponding event."""
-
-        key = event.KeyCode()
-        if key in self.autoCompleteKeys:
-            # Usually the dot (period) key activates auto completion.
-            if self.window.AutoCompActive(): 
-                self.window.AutoCompCancel()
-            self.window.ReplaceSelection('')
-            self.window.AddText(chr(key))
-            text, pos = self.window.GetCurLine()
-            text = text[:pos]
-            if self.window.autoComplete: 
-                self.autoCompleteShow(text)
-        elif key == ord('('):
-            # The left paren activates a call tip and cancels an
-            # active auto completion.
-            if self.window.AutoCompActive(): 
-                self.window.AutoCompCancel()
-            self.window.ReplaceSelection('')
-            self.window.AddText('(')
-            text, pos = self.window.GetCurLine()
-            text = text[:pos]
-            self.autoCallTipShow(text)
-        else:
-            # Allow the normal event handling to take place.
-            event.Skip()
-
-    def OnKeyDown(self, event):
-        """Key down event handler."""
-
-        key = event.KeyCode()
-        # If the auto-complete window is up let it do its thing.
-        if self.window.AutoCompActive():
-            event.Skip()
-            return
-        controlDown = event.ControlDown()
-        altDown = event.AltDown()
-        shiftDown = event.ShiftDown()
-        # Let Ctrl-Alt-* get handled normally.
-        if controlDown and altDown:
-            event.Skip()
-        # Increase font size.
-        elif controlDown and key in (ord(']'),):
-            dispatcher.send(signal='FontIncrease')
-        # Decrease font size.
-        elif controlDown and key in (ord('['),):
-            dispatcher.send(signal='FontDecrease')
-        # Default font size.
-        elif controlDown and key in (ord('='),):
-            dispatcher.send(signal='FontDefault')
-        else:
-            event.Skip()
-
-    def autoCompleteShow(self, command):
-        """Display auto-completion popup list."""
-        list = self.buffer.interp.getAutoCompleteList(command, 
-                    includeMagic=self.window.autoCompleteIncludeMagic, 
-                    includeSingle=self.window.autoCompleteIncludeSingle, 
-                    includeDouble=self.window.autoCompleteIncludeDouble)
-        if list:
-            options = ' '.join(list)
-            offset = 0
-            self.window.AutoCompShow(offset, options)
-
-    def autoCallTipShow(self, command):
-        """Display argument spec and docstring in a popup window."""
-        if self.window.CallTipActive():
-            self.window.CallTipCancel()
-        (name, argspec, tip) = self.buffer.interp.getCallTip(command)
-        if tip:
-            dispatcher.send(signal='Shell.calltip', sender=self, calltip=tip)
-        if not self.window.autoCallTip:
-            return
-        if argspec:
-            startpos = self.window.GetCurrentPos()
-            self.window.AddText(argspec + ')')
-            endpos = self.window.GetCurrentPos()
-            self.window.SetSelection(endpos, startpos)
-        if tip:
-            curpos = self.window.GetCurrentPos()
-            size = len(name)
-            tippos = curpos - (size + 1)
-            fallback = curpos - self.window.GetColumn(curpos)
-            # In case there isn't enough room, only go back to the
-            # fallback.
-            tippos = max(tippos, fallback)
-            self.window.CallTipShow(tippos, tip)
-            self.window.CallTipSetHighlight(0, size)
-
-
-class EditWindow(editwindow.EditWindow):
-    """EditWindow based on StyledTextCtrl."""
-
-    def __init__(self, editor, parent, id=-1, pos=wx.wxDefaultPosition,
-                 size=wx.wxDefaultSize,
-                 style=wx.wxCLIP_CHILDREN | wx.wxSUNKEN_BORDER):
-        """Create EditWindow instance."""
-        editwindow.EditWindow.__init__(self, parent, id, pos, size, style)
-        self.editor = editor
-
-
-class DialogResults:
-    """DialogResults class."""
-
-    def __init__(self, returned):
-        """Create wrapper for results returned by dialog."""
-        self.returned = returned
-        self.positive = returned in (wx.wxID_OK, wx.wxID_YES)
-        self.text = self._asString()
-        
-
-    def __repr__(self):
-        return str(self.__dict__)
-
-    def _asString(self):
-        returned = self.returned
-        if returned == wx.wxID_OK:
-            return "Ok"
-        elif returned == wx.wxID_CANCEL:
-            return "Cancel"
-        elif returned == wx.wxID_YES:
-            return "Yes"
-        elif returned == wx.wxID_NO:
-            return "No"
-
-
-def fileDialog(parent=None, title='Open', directory='', filename='',
-               wildcard='All Files (*.*)|*.*',
-               style=wx.wxOPEN | wx.wxMULTIPLE):
-    """File dialog wrapper function."""
-    dialog = wx.wxFileDialog(parent, title, directory, filename,
-                             wildcard, style)
-    result = DialogResults(dialog.ShowModal())
-    if result.positive:
-        result.paths = dialog.GetPaths()
-    else:
-        result.paths = []
-    dialog.Destroy()
-    return result
-
-
-def openSingle(parent=None, title='Open', directory='', filename='',
-               wildcard='All Files (*.*)|*.*', style=wx.wxOPEN):
-    """File dialog wrapper function."""
-    dialog = wx.wxFileDialog(parent, title, directory, filename,
-                             wildcard, style)
-    result = DialogResults(dialog.ShowModal())
-    if result.positive:
-        result.path = dialog.GetPath()
-    else:
-        result.path = None
-    dialog.Destroy()
-    return result
-
-
-def openMultiple(parent=None, title='Open', directory='', filename='',
-                 wildcard='All Files (*.*)|*.*',
-                 style=wx.wxOPEN | wx.wxMULTIPLE):
-    """File dialog wrapper function."""
-    return fileDialog(parent, title, directory, filename, wildcard, style)
-
-
-def saveSingle(parent=None, title='Save', directory='', filename='',
-               wildcard='All Files (*.*)|*.*',
-               style=wx.wxSAVE | wx.wxHIDE_READONLY | wx.wxOVERWRITE_PROMPT):
-    """File dialog wrapper function."""
-    dialog = wx.wxFileDialog(parent, title, directory, filename,
-                             wildcard, style)
-    result = DialogResults(dialog.ShowModal())
-    if result.positive:
-        result.path = dialog.GetPath()
-    else:
-        result.path = None
-    dialog.Destroy()
-    return result
-
-
-def directory(parent=None, message='Choose a directory', path='', style=0,
-              pos=wx.wxDefaultPosition, size=wx.wxDefaultSize):
-    """Dir dialog wrapper function."""
-    dialog = wx.wxDirDialog(parent, message, path, style, pos, size)
-    result = DialogResults(dialog.ShowModal())
-    if result.positive:
-        result.path = dialog.GetPath()
-    else:
-        result.path = None
-    dialog.Destroy()
-    return result
-
-
-def messageDialog(parent=None, message='', title='Message box',
-                  style=wx.wxYES_NO | wx.wxCANCEL | wx.wxCENTRE | wx.wxICON_QUESTION,
-                  pos=wx.wxDefaultPosition):
-    """Message dialog wrapper function."""
-    dialog = wx.wxMessageDialog(parent, message, title, style, pos)
-    result = DialogResults(dialog.ShowModal())
-    dialog.Destroy()
-    return result

wxPython/wxPython/py/editwindow.py

@@ -1,195 +0,0 @@
-"""EditWindow class."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-from wxPython import stc
-
-import keyword
-import os
-import sys
-import time
-
-import dispatcher
-from version import VERSION
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-if wx.wxPlatform == '__WXMSW__':
-    FACES = { 'times'  : 'Times New Roman',
-              'mono'   : 'Courier New',
-              'helv'   : 'Lucida Console',
-              'lucida' : 'Lucida Console',
-              'other'  : 'Comic Sans MS',
-              'size'   : 10,
-              'lnsize' : 9,
-              'backcol': '#FFFFFF',
-            }
-else:  # GTK
-    FACES = { 'times'  : 'Times',
-              'mono'   : 'Courier',
-              'helv'   : 'Helvetica',
-              'other'  : 'new century schoolbook',
-              'size'   : 12,
-              'lnsize' : 10,
-              'backcol': '#FFFFFF',
-            }
-
-
-class EditWindow(stc.wxStyledTextCtrl):
-    """EditWindow based on StyledTextCtrl."""
-
-    revision = __revision__
-
-    def __init__(self, parent, id=-1, pos=wx.wxDefaultPosition,
-                 size=wx.wxDefaultSize, style=wx.wxCLIP_CHILDREN | wx.wxSUNKEN_BORDER):
-        """Create EditWindow instance."""
-        stc.wxStyledTextCtrl.__init__(self, parent, id, pos, size, style)
-        self.__config()
-        stc.EVT_STC_UPDATEUI(self, id, self.OnUpdateUI)
-        dispatcher.connect(receiver=self._fontsizer, signal='FontIncrease')
-        dispatcher.connect(receiver=self._fontsizer, signal='FontDecrease')
-        dispatcher.connect(receiver=self._fontsizer, signal='FontDefault')
-
-    def _fontsizer(self, signal):
-        """Receiver for Font* signals."""
-        size = self.GetZoom()
-        if signal == 'FontIncrease':
-            size += 1
-        elif signal == 'FontDecrease':
-            size -= 1
-        elif signal == 'FontDefault':
-            size = 0
-        self.SetZoom(size)
-
-    def __config(self):
-        """Configure shell based on user preferences."""
-        self.SetMarginType(1, stc.wxSTC_MARGIN_NUMBER)
-        self.SetMarginWidth(1, 40)
-
-        self.SetLexer(stc.wxSTC_LEX_PYTHON)
-        self.SetKeyWords(0, ' '.join(keyword.kwlist))
-
-        self.setStyles(FACES)
-        self.SetViewWhiteSpace(False)
-        self.SetTabWidth(4)
-        self.SetUseTabs(False)
-        # Do we want to automatically pop up command completion options?
-        self.autoComplete = True
-        self.autoCompleteIncludeMagic = True
-        self.autoCompleteIncludeSingle = True
-        self.autoCompleteIncludeDouble = True
-        self.autoCompleteCaseInsensitive = True
-        self.AutoCompSetIgnoreCase(self.autoCompleteCaseInsensitive)
-        self.AutoCompSetAutoHide(False)
-        self.AutoCompStops(' .,;:([)]}\'"\\<>%^&+-=*/|`')
-        # Do we want to automatically pop up command argument help?
-        self.autoCallTip = True
-        self.CallTipSetBackground(wx.wxColour(255, 255, 232))
-        self.SetWrapMode(False)
-        try:
-            self.SetEndAtLastLine(False)
-        except AttributeError:
-            pass
-
-    def setStyles(self, faces):
-        """Configure font size, typeface and color for lexer."""
-
-        # Default style
-        self.StyleSetSpec(stc.wxSTC_STYLE_DEFAULT,
-                          "face:%(mono)s,size:%(size)d,back:%(backcol)s" % \
-                          faces)
-
-        self.StyleClearAll()
-
-        # Built in styles
-        self.StyleSetSpec(stc.wxSTC_STYLE_LINENUMBER,
-                          "back:#C0C0C0,face:%(mono)s,size:%(lnsize)d" % faces)
-        self.StyleSetSpec(stc.wxSTC_STYLE_CONTROLCHAR,
-                          "face:%(mono)s" % faces)
-        self.StyleSetSpec(stc.wxSTC_STYLE_BRACELIGHT,
-                          "fore:#0000FF,back:#FFFF88")
-        self.StyleSetSpec(stc.wxSTC_STYLE_BRACEBAD,
-                          "fore:#FF0000,back:#FFFF88")
-
-        # Python styles
-        self.StyleSetSpec(stc.wxSTC_P_DEFAULT,
-                          "face:%(mono)s" % faces)
-        self.StyleSetSpec(stc.wxSTC_P_COMMENTLINE,
-                          "fore:#007F00,face:%(mono)s" % faces)
-        self.StyleSetSpec(stc.wxSTC_P_NUMBER,
-                          "")
-        self.StyleSetSpec(stc.wxSTC_P_STRING,
-                          "fore:#7F007F,face:%(mono)s" % faces)
-        self.StyleSetSpec(stc.wxSTC_P_CHARACTER,
-                          "fore:#7F007F,face:%(mono)s" % faces)
-        self.StyleSetSpec(stc.wxSTC_P_WORD,
-                          "fore:#00007F,bold")
-        self.StyleSetSpec(stc.wxSTC_P_TRIPLE,
-                          "fore:#7F0000")
-        self.StyleSetSpec(stc.wxSTC_P_TRIPLEDOUBLE,
-                          "fore:#000033,back:#FFFFE8")
-        self.StyleSetSpec(stc.wxSTC_P_CLASSNAME,
-                          "fore:#0000FF,bold")
-        self.StyleSetSpec(stc.wxSTC_P_DEFNAME,
-                          "fore:#007F7F,bold")
-        self.StyleSetSpec(stc.wxSTC_P_OPERATOR,
-                          "")
-        self.StyleSetSpec(stc.wxSTC_P_IDENTIFIER,
-                          "")
-        self.StyleSetSpec(stc.wxSTC_P_COMMENTBLOCK,
-                          "fore:#7F7F7F")
-        self.StyleSetSpec(stc.wxSTC_P_STRINGEOL,
-                          "fore:#000000,face:%(mono)s,back:#E0C0E0,eolfilled" % faces)
-
-    def OnUpdateUI(self, event):
-        """Check for matching braces."""
-        # If the auto-complete window is up let it do its thing.
-        if self.AutoCompActive() or self.CallTipActive():
-            return
-        braceAtCaret = -1
-        braceOpposite = -1
-        charBefore = None
-        caretPos = self.GetCurrentPos()
-        if caretPos > 0:
-            charBefore = self.GetCharAt(caretPos - 1)
-            styleBefore = self.GetStyleAt(caretPos - 1)
-
-        # Check before.
-        if charBefore and chr(charBefore) in '[]{}()' \
-        and styleBefore == stc.wxSTC_P_OPERATOR:
-            braceAtCaret = caretPos - 1
-
-        # Check after.
-        if braceAtCaret < 0:
-            charAfter = self.GetCharAt(caretPos)
-            styleAfter = self.GetStyleAt(caretPos)
-            if charAfter and chr(charAfter) in '[]{}()' \
-            and styleAfter == stc.wxSTC_P_OPERATOR:
-                braceAtCaret = caretPos
-
-        if braceAtCaret >= 0:
-            braceOpposite = self.BraceMatch(braceAtCaret)
-
-        if braceAtCaret != -1  and braceOpposite == -1:
-            self.BraceBadLight(braceAtCaret)
-        else:
-            self.BraceHighlight(braceAtCaret, braceOpposite)
-
-    def CanCut(self):
-        """Return true if text is selected and can be cut."""
-        return self.CanCopy()
-
-    def CanCopy(self):
-        """Return true if text is selected and can be copied."""
-        return self.GetSelectionStart() != self.GetSelectionEnd()
-
-    def CanEdit(self):
-        """Return true if editing should succeed."""
-        return True

wxPython/wxPython/py/filling.py

@@ -1,335 +0,0 @@
-"""PyCrust Filling is the gui tree control through which a user can
-navigate the local namespace or any object."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-
-import dispatcher
-import editwindow
-import inspect
-import introspect
-import keyword
-import sys
-import types
-from version import VERSION
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-COMMONTYPES = [getattr(types, t) for t in dir(types) \
-               if not t.startswith('_') \
-               and t not in ('ClassType', 'InstanceType', 'ModuleType')]
-
-DOCTYPES = ('BuiltinFunctionType', 'BuiltinMethodType', 'ClassType',
-            'FunctionType', 'GeneratorType', 'InstanceType',
-            'LambdaType', 'MethodType', 'ModuleType',
-            'UnboundMethodType', 'method-wrapper')
-
-SIMPLETYPES = [getattr(types, t) for t in dir(types) \
-               if not t.startswith('_') and t not in DOCTYPES]
-
-try:
-    COMMONTYPES.append(type(''.__repr__))  # Method-wrapper in version 2.2.x.
-except AttributeError:
-    pass
-
-
-class FillingTree(wx.wxTreeCtrl):
-    """PyCrust FillingTree based on wxTreeCtrl."""
-    
-    name = 'PyCrust Filling Tree'
-    revision = __revision__
-
-    def __init__(self, parent, id=-1, pos=wx.wxDefaultPosition,
-                 size=wx.wxDefaultSize, style=wx.wxTR_DEFAULT_STYLE,
-                 rootObject=None, rootLabel=None, rootIsNamespace=False,
-                 static=False):
-        """Create a PyCrust FillingTree instance."""
-        wx.wxTreeCtrl.__init__(self, parent, id, pos, size, style)
-        self.rootIsNamespace = rootIsNamespace
-        import __main__
-        if rootObject is None:
-            rootObject = __main__.__dict__
-            self.rootIsNamespace = True
-        if rootObject is __main__.__dict__ and rootLabel is None:
-            rootLabel = 'locals()'
-        if not rootLabel:
-            rootLabel = 'Ingredients'
-        rootData = wx.wxTreeItemData(rootObject)
-        self.item = self.root = self.AddRoot(rootLabel, -1, -1, rootData)
-        self.SetItemHasChildren(self.root, self.objHasChildren(rootObject))
-        wx.EVT_TREE_ITEM_EXPANDING(self, self.GetId(), self.OnItemExpanding)
-        wx.EVT_TREE_ITEM_COLLAPSED(self, self.GetId(), self.OnItemCollapsed)
-        wx.EVT_TREE_SEL_CHANGED(self, self.GetId(), self.OnSelChanged)
-        wx.EVT_TREE_ITEM_ACTIVATED(self, self.GetId(), self.OnItemActivated)
-        if not static:
-            dispatcher.connect(receiver=self.push, signal='Interpreter.push')
-
-    def push(self, command, more):
-        """Receiver for Interpreter.push signal."""
-        self.display()
-
-    def OnItemExpanding(self, event):
-        """Add children to the item."""
-        busy = wx.wxBusyCursor()
-        item = event.GetItem()
-        if self.IsExpanded(item):
-            return
-        self.addChildren(item)
-#        self.SelectItem(item)
-
-    def OnItemCollapsed(self, event):
-        """Remove all children from the item."""
-        busy = wx.wxBusyCursor()
-        item = event.GetItem()
-#        self.CollapseAndReset(item)
-#        self.DeleteChildren(item)
-#        self.SelectItem(item)
-
-    def OnSelChanged(self, event):
-        """Display information about the item."""
-        busy = wx.wxBusyCursor()
-        self.item = event.GetItem()
-        self.display()
-
-    def OnItemActivated(self, event):
-        """Launch a DirFrame."""
-        item = event.GetItem()
-        text = self.getFullName(item)
-        obj = self.GetPyData(item)
-        frame = FillingFrame(parent=self, size=(600, 100), rootObject=obj,
-                             rootLabel=text, rootIsNamespace=False)
-        frame.Show()
-
-    def objHasChildren(self, obj):
-        """Return true if object has children."""
-        if self.objGetChildren(obj):
-            return True
-        else:
-            return False
-
-    def objGetChildren(self, obj):
-        """Return dictionary with attributes or contents of object."""
-        busy = wx.wxBusyCursor()
-        otype = type(obj)
-        if otype is types.DictType \
-        or str(otype)[17:23] == 'BTrees' and hasattr(obj, 'keys'):
-            return obj
-        d = {}
-        if otype is types.ListType or otype is types.TupleType:
-            for n in range(len(obj)):
-                key = '[' + str(n) + ']'
-                d[key] = obj[n]
-        if otype not in COMMONTYPES:
-            for key in introspect.getAttributeNames(obj):
-                # Believe it or not, some attributes can disappear,
-                # such as the exc_traceback attribute of the sys
-                # module. So this is nested in a try block.
-                try:
-                    d[key] = getattr(obj, key)
-                except:
-                    pass
-        return d
-
-    def addChildren(self, item):
-        self.DeleteChildren(item)
-        obj = self.GetPyData(item)
-        children = self.objGetChildren(obj)
-        if not children:
-            return
-        keys = children.keys()
-        keys.sort(lambda x, y: cmp(x.lower(), y.lower()))
-        for key in keys:
-            itemtext = str(key)
-            # Show string dictionary items with single quotes, except
-            # for the first level of items, if they represent a
-            # namespace.
-            if type(obj) is types.DictType \
-            and type(key) is types.StringType \
-            and (item != self.root \
-                 or (item == self.root and not self.rootIsNamespace)):
-                itemtext = repr(key)
-            child = children[key]
-            data = wx.wxTreeItemData(child)
-            branch = self.AppendItem(parent=item, text=itemtext, data=data)
-            self.SetItemHasChildren(branch, self.objHasChildren(child))
-
-    def display(self):
-        item = self.item
-        if self.IsExpanded(item):
-            self.addChildren(item)
-        self.setText('')
-        obj = self.GetPyData(item)
-        if wx.wxPlatform == '__WXMSW__':
-            if obj is None: # Windows bug fix.
-                return
-        self.SetItemHasChildren(item, self.objHasChildren(obj))
-        otype = type(obj)
-        text = ''
-        text += self.getFullName(item)
-        text += '\n\nType: ' + str(otype)
-        try:
-            value = str(obj)
-        except:
-            value = ''
-        if otype is types.StringType or otype is types.UnicodeType:
-            value = repr(obj)
-        text += '\n\nValue: ' + value
-        if otype not in SIMPLETYPES:
-            try:
-                text += '\n\nDocstring:\n\n"""' + \
-                        inspect.getdoc(obj).strip() + '"""'
-            except:
-                pass
-        if otype is types.InstanceType:
-            try:
-                text += '\n\nClass Definition:\n\n' + \
-                        inspect.getsource(obj.__class__)
-            except:
-                pass
-        else:
-            try:
-                text += '\n\nSource Code:\n\n' + \
-                        inspect.getsource(obj)
-            except:
-                pass
-        self.setText(text)
-
-    def getFullName(self, item, partial=''):
-        """Return a syntactically proper name for item."""
-        name = self.GetItemText(item)
-        parent = None
-        obj = None
-        if item != self.root:
-            parent = self.GetItemParent(item)
-            obj = self.GetPyData(parent)
-        # Apply dictionary syntax to dictionary items, except the root
-        # and first level children of a namepace.
-        if (type(obj) is types.DictType \
-            or str(type(obj))[17:23] == 'BTrees' \
-            and hasattr(obj, 'keys')) \
-        and ((item != self.root and parent != self.root) \
-            or (parent == self.root and not self.rootIsNamespace)):
-            name = '[' + name + ']'
-        # Apply dot syntax to multipart names.
-        if partial:
-            if partial[0] == '[':
-                name += partial
-            else:
-                name += '.' + partial
-        # Repeat for everything but the root item
-        # and first level children of a namespace.
-        if (item != self.root and parent != self.root) \
-        or (parent == self.root and not self.rootIsNamespace):
-            name = self.getFullName(parent, partial=name)
-        return name
-
-    def setText(self, text):
-        """Display information about the current selection."""
-
-        # This method will likely be replaced by the enclosing app to
-        # do something more interesting, like write to a text control.
-        print text
-
-    def setStatusText(self, text):
-        """Display status information."""
-
-        # This method will likely be replaced by the enclosing app to
-        # do something more interesting, like write to a status bar.
-        print text
-
-
-class FillingText(editwindow.EditWindow):
-    """FillingText based on StyledTextCtrl."""
-
-    name = 'PyFilling Text'
-    revision = __revision__
-
-    def __init__(self, parent, id=-1, pos=wx.wxDefaultPosition,
-                 size=wx.wxDefaultSize, style=wx.wxCLIP_CHILDREN,
-                 static=False):
-        """Create a FillingText instance."""
-        editwindow.EditWindow.__init__(self, parent, id, pos, size, style)
-        # Configure various defaults and user preferences.
-        self.SetReadOnly(True)
-        self.SetWrapMode(True)
-        self.SetMarginWidth(1, 0)
-        if not static:
-            dispatcher.connect(receiver=self.push, signal='Interpreter.push')
-
-    def push(self, command, more):
-        """Receiver for Interpreter.push signal."""
-        self.Refresh()
-
-    def SetText(self, *args, **kwds):
-        self.SetReadOnly(False)
-        editwindow.EditWindow.SetText(self, *args, **kwds)
-        self.SetReadOnly(True)
-
-
-class Filling(wx.wxSplitterWindow):
-    """Filling based on wxSplitterWindow."""
-
-    name = 'PyFilling'
-    revision = __revision__
-
-    def __init__(self, parent, id=-1, pos=wx.wxDefaultPosition,
-                 size=wx.wxDefaultSize, style=wx.wxSP_3D,
-                 name='Filling Window', rootObject=None,
-                 rootLabel=None, rootIsNamespace=False, static=False):
-        """Create a Filling instance."""
-        wx.wxSplitterWindow.__init__(self, parent, id, pos, size, style, name)
-        self.tree = FillingTree(parent=self, rootObject=rootObject,
-                                rootLabel=rootLabel,
-                                rootIsNamespace=rootIsNamespace,
-                                static=static)
-        self.text = FillingText(parent=self, static=static)
-        self.SplitVertically(self.tree, self.text, 130)
-        self.SetMinimumPaneSize(1)
-        # Override the filling so that descriptions go to FillingText.
-        self.tree.setText = self.text.SetText
-        # Display the root item.
-##        self.tree.SelectItem(self.tree.root)
-        self.tree.display()
-
-
-class FillingFrame(wx.wxFrame):
-    """Frame containing the namespace tree component."""
-
-    name = 'PyFilling Frame'
-    revision = __revision__
-
-    def __init__(self, parent=None, id=-1, title='PyFilling',
-                 pos=wx.wxDefaultPosition, size=(600, 400),
-                 style=wx.wxDEFAULT_FRAME_STYLE, rootObject=None,
-                 rootLabel=None, rootIsNamespace=False, static=False):
-        """Create a FillingFrame instance."""
-        wx.wxFrame.__init__(self, parent, id, title, pos, size, style)
-        intro = 'PyFilling - The Tastiest Namespace Inspector'
-        self.CreateStatusBar()
-        self.SetStatusText(intro)
-        import images
-        self.SetIcon(images.getPyCrustIcon())
-        self.filling = Filling(parent=self, rootObject=rootObject,
-                               rootLabel=rootLabel,
-                               rootIsNamespace=rootIsNamespace,
-                               static=static)
-        # Override so that status messages go to the status bar.
-        self.filling.tree.setStatusText = self.SetStatusText
-
-
-class App(wx.wxApp):
-    """PyFilling standalone application."""
-
-    def OnInit(self):
-        wx.wxInitAllImageHandlers()
-        self.fillingFrame = FillingFrame()
-        self.fillingFrame.Show(True)
-        self.SetTopWindow(self.fillingFrame)
-        return True

wxPython/wxPython/py/frame.py

@@ -1,348 +0,0 @@
-"""Base frame with menu."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from wxPython import wx
-from version import VERSION
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-ID_NEW = wx.wxID_NEW
-ID_OPEN = wx.wxID_OPEN
-ID_REVERT = wx.wxID_REVERT
-ID_CLOSE = wx.wxID_CLOSE
-ID_SAVE = wx.wxID_SAVE
-ID_SAVEAS = wx.wxID_SAVEAS
-ID_PRINT = wx.wxID_PRINT
-ID_EXIT = wx.wxID_EXIT
-ID_UNDO = wx.wxID_UNDO
-ID_REDO = wx.wxID_REDO
-ID_CUT = wx.wxID_CUT
-ID_COPY = wx.wxID_COPY
-ID_PASTE = wx.wxID_PASTE
-ID_CLEAR = wx.wxID_CLEAR
-ID_SELECTALL = wx.wxID_SELECTALL
-ID_ABOUT = wx.wxID_ABOUT
-ID_AUTOCOMP = wx.wxNewId()
-ID_AUTOCOMP_SHOW = wx.wxNewId()
-ID_AUTOCOMP_MAGIC = wx.wxNewId()
-ID_AUTOCOMP_SINGLE = wx.wxNewId()
-ID_AUTOCOMP_DOUBLE = wx.wxNewId()
-ID_CALLTIPS = wx.wxNewId()
-ID_CALLTIPS_SHOW = wx.wxNewId()
-ID_COPY_PLUS = wx.wxNewId()
-ID_NAMESPACE = wx.wxNewId()
-ID_PASTE_PLUS = wx.wxNewId()
-ID_WRAP = wx.wxNewId()
-
-
-class Frame(wx.wxFrame):
-    """Frame with standard menu items."""
-
-    revision = __revision__
-
-    def __init__(self, parent=None, id=-1, title='Editor',
-                 pos=wx.wxDefaultPosition, size=wx.wxDefaultSize, 
-                 style=wx.wxDEFAULT_FRAME_STYLE):
-        """Create a Frame instance."""
-        wx.wxFrame.__init__(self, parent, id, title, pos, size, style)
-        self.CreateStatusBar()
-        self.SetStatusText('Frame')
-        import images
-        self.SetIcon(images.getPyCrustIcon())
-        self.__createMenus()
-        wx.EVT_CLOSE(self, self.OnClose)
-
-    def OnClose(self, event):
-        """Event handler for closing."""
-        self.Destroy()
-
-    def __createMenus(self):
-        m = self.fileMenu = wx.wxMenu()
-        m.Append(ID_NEW, '&New \tCtrl+N',
-                 'New file')
-        m.Append(ID_OPEN, '&Open... \tCtrl+O',
-                 'Open file')
-        m.AppendSeparator()
-        m.Append(ID_REVERT, '&Revert \tCtrl+R',
-                 'Revert to last saved version')
-        m.Append(ID_CLOSE, '&Close \tCtrl+W',
-                 'Close file')
-        m.AppendSeparator()
-        m.Append(ID_SAVE, '&Save... \tCtrl+S',
-                 'Save file')
-        m.Append(ID_SAVEAS, 'Save &As \tShift+Ctrl+S',
-                 'Save file with new name')
-        m.AppendSeparator()
-        m.Append(ID_PRINT, '&Print... \tCtrl+P',
-                 'Print file')
-        m.AppendSeparator()
-        m.Append(ID_NAMESPACE, '&Update Namespace \tShift+Ctrl+N',
-                 'Update namespace for autocompletion and calltips')
-        m.AppendSeparator()
-        m.Append(ID_EXIT, 'E&xit', 'Exit Program')
-
-        m = self.editMenu = wx.wxMenu()
-        m.Append(ID_UNDO, '&Undo \tCtrl+Z',
-                 'Undo the last action')
-        m.Append(ID_REDO, '&Redo \tCtrl+Y',
-                 'Redo the last undone action')
-        m.AppendSeparator()
-        m.Append(ID_CUT, 'Cu&t \tCtrl+X',
-                 'Cut the selection')
-        m.Append(ID_COPY, '&Copy \tCtrl+C',
-                 'Copy the selection')
-        m.Append(ID_COPY_PLUS, 'Cop&y Plus \tShift+Ctrl+C',
-                 'Copy the selection - retaining prompts')
-        m.Append(ID_PASTE, '&Paste \tCtrl+V', 'Paste from clipboard')
-        m.Append(ID_PASTE_PLUS, 'Past&e Plus \tShift+Ctrl+V',
-                 'Paste and run commands')
-        m.AppendSeparator()
-        m.Append(ID_CLEAR, 'Cle&ar',
-                 'Delete the selection')
-        m.Append(ID_SELECTALL, 'Select A&ll \tCtrl+A',
-                 'Select all text')
-
-        m = self.autocompMenu = wx.wxMenu()
-        m.Append(ID_AUTOCOMP_SHOW, 'Show Auto Completion',
-                 'Show auto completion list', 1)
-        m.Append(ID_AUTOCOMP_MAGIC, 'Include Magic Attributes',
-                 'Include attributes visible to __getattr__ and __setattr__',
-                 1)
-        m.Append(ID_AUTOCOMP_SINGLE, 'Include Single Underscores',
-                 'Include attibutes prefixed by a single underscore', 1)
-        m.Append(ID_AUTOCOMP_DOUBLE, 'Include Double Underscores',
-                 'Include attibutes prefixed by a double underscore', 1)
-
-        m = self.calltipsMenu = wx.wxMenu()
-        m.Append(ID_CALLTIPS_SHOW, 'Show Call Tips',
-                 'Show call tips with argument signature and docstring', 1)
-
-        m = self.optionsMenu = wx.wxMenu()
-        m.AppendMenu(ID_AUTOCOMP, '&Auto Completion', self.autocompMenu,
-                     'Auto Completion Options')
-        m.AppendMenu(ID_CALLTIPS, '&Call Tips', self.calltipsMenu,
-                     'Call Tip Options')
-        m.Append(ID_WRAP, '&Wrap Lines',
-                 'Wrap lines at right edge', 1)
-
-        m = self.helpMenu = wx.wxMenu()
-        m.AppendSeparator()
-        m.Append(ID_ABOUT, '&About...', 'About this program')
-
-        b = self.menuBar = wx.wxMenuBar()
-        b.Append(self.fileMenu, '&File')
-        b.Append(self.editMenu, '&Edit')
-        b.Append(self.optionsMenu, '&Options')
-        b.Append(self.helpMenu, '&Help')
-        self.SetMenuBar(b)
-
-        wx.EVT_MENU(self, ID_NEW, self.OnFileNew)
-        wx.EVT_MENU(self, ID_OPEN, self.OnFileOpen)
-        wx.EVT_MENU(self, ID_REVERT, self.OnFileRevert)
-        wx.EVT_MENU(self, ID_CLOSE, self.OnFileClose)
-        wx.EVT_MENU(self, ID_SAVE, self.OnFileSave)
-        wx.EVT_MENU(self, ID_SAVEAS, self.OnFileSaveAs)
-        wx.EVT_MENU(self, ID_NAMESPACE, self.OnFileUpdateNamespace)
-        wx.EVT_MENU(self, ID_PRINT, self.OnFilePrint)
-        wx.EVT_MENU(self, ID_EXIT, self.OnExit)
-        wx.EVT_MENU(self, ID_UNDO, self.OnUndo)
-        wx.EVT_MENU(self, ID_REDO, self.OnRedo)
-        wx.EVT_MENU(self, ID_CUT, self.OnCut)
-        wx.EVT_MENU(self, ID_COPY, self.OnCopy)
-        wx.EVT_MENU(self, ID_COPY_PLUS, self.OnCopyPlus)
-        wx.EVT_MENU(self, ID_PASTE, self.OnPaste)
-        wx.EVT_MENU(self, ID_PASTE_PLUS, self.OnPastePlus)
-        wx.EVT_MENU(self, ID_CLEAR, self.OnClear)
-        wx.EVT_MENU(self, ID_SELECTALL, self.OnSelectAll)
-        wx.EVT_MENU(self, ID_ABOUT, self.OnAbout)
-        wx.EVT_MENU(self, ID_AUTOCOMP_SHOW, self.OnAutoCompleteShow)
-        wx.EVT_MENU(self, ID_AUTOCOMP_MAGIC, self.OnAutoCompleteMagic)
-        wx.EVT_MENU(self, ID_AUTOCOMP_SINGLE, self.OnAutoCompleteSingle)
-        wx.EVT_MENU(self, ID_AUTOCOMP_DOUBLE, self.OnAutoCompleteDouble)
-        wx.EVT_MENU(self, ID_CALLTIPS_SHOW, self.OnCallTipsShow)
-        wx.EVT_MENU(self, ID_WRAP, self.OnWrap)
-
-        wx.EVT_UPDATE_UI(self, ID_NEW, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_OPEN, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_REVERT, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_CLOSE, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_SAVE, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_SAVEAS, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_NAMESPACE, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_PRINT, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_UNDO, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_REDO, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_CUT, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_COPY, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_COPY_PLUS, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_PASTE, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_PASTE_PLUS, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_CLEAR, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_SELECTALL, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_AUTOCOMP_SHOW, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_AUTOCOMP_MAGIC, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_AUTOCOMP_SINGLE, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_AUTOCOMP_DOUBLE, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_CALLTIPS_SHOW, self.OnUpdateMenu)
-        wx.EVT_UPDATE_UI(self, ID_WRAP, self.OnUpdateMenu)
-
-    def OnFileNew(self, event):
-        self.bufferNew()
-
-    def OnFileOpen(self, event):
-        self.bufferOpen()
-
-    def OnFileRevert(self, event):
-        self.bufferRevert()
-
-    def OnFileClose(self, event):
-        self.bufferClose()
-
-    def OnFileSave(self, event):
-        self.bufferSave()
-
-    def OnFileSaveAs(self, event):
-        self.bufferSaveAs()
-
-    def OnFileUpdateNamespace(self, event):
-        self.updateNamespace()
-
-    def OnFilePrint(self, event):
-        self.bufferPrint()
-
-    def OnExit(self, event):
-        self.Close(False)
-
-    def OnUndo(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.Undo()
-
-    def OnRedo(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.Redo()
-
-    def OnCut(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.Cut()
-
-    def OnCopy(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.Copy()
-
-    def OnCopyPlus(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.CopyWithPrompts()
-
-    def OnPaste(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.Paste()
-
-    def OnPastePlus(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.PasteAndRun()
-
-    def OnClear(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.Clear()
-
-    def OnSelectAll(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.SelectAll()
-
-    def OnAbout(self, event):
-        """Display an About window."""
-        title = 'About'
-        text = 'Your message here.'
-        dialog = wx.wxMessageDialog(self, text, title,
-                                    wx.wxOK | wx.wxICON_INFORMATION)
-        dialog.ShowModal()
-        dialog.Destroy()
-
-    def OnAutoCompleteShow(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.autoComplete = event.IsChecked()
-
-    def OnAutoCompleteMagic(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.autoCompleteIncludeMagic = event.IsChecked()
-
-    def OnAutoCompleteSingle(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.autoCompleteIncludeSingle = event.IsChecked()
-
-    def OnAutoCompleteDouble(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.autoCompleteIncludeDouble = event.IsChecked()
-
-    def OnCallTipsShow(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.autoCallTip = event.IsChecked()
-
-    def OnWrap(self, event):
-        win = wx.wxWindow_FindFocus()
-        win.SetWrapMode(event.IsChecked())
-
-    def OnUpdateMenu(self, event):
-        """Update menu items based on current status and context."""
-        win = wx.wxWindow_FindFocus()
-        id = event.GetId()
-        event.Enable(True)
-        try:
-            if id == ID_NEW:
-                event.Enable(hasattr(self, 'bufferNew'))
-            elif id == ID_OPEN:
-                event.Enable(hasattr(self, 'bufferOpen'))
-            elif id == ID_REVERT:
-                event.Enable(hasattr(self, 'bufferRevert') and self.hasBuffer())
-            elif id == ID_CLOSE:
-                event.Enable(hasattr(self, 'bufferClose') and self.hasBuffer())
-            elif id == ID_SAVE:
-                event.Enable(hasattr(self, 'bufferSave') and self.bufferHasChanged())
-            elif id == ID_SAVEAS:
-                event.Enable(hasattr(self, 'bufferSaveAs') and self.hasBuffer())
-            elif id == ID_NAMESPACE:
-                event.Enable(hasattr(self, 'updateNamespace') and self.hasBuffer())
-            elif id == ID_PRINT:
-                event.Enable(hasattr(self, 'bufferPrint') and self.hasBuffer())
-            elif id == ID_UNDO:
-                event.Enable(win.CanUndo())
-            elif id == ID_REDO:
-                event.Enable(win.CanRedo())
-            elif id == ID_CUT:
-                event.Enable(win.CanCut())
-            elif id == ID_COPY:
-                event.Enable(win.CanCopy())
-            elif id == ID_COPY_PLUS:
-                event.Enable(win.CanCopy() and hasattr(win, 'CopyWithPrompts'))
-            elif id == ID_PASTE:
-                event.Enable(win.CanPaste())
-            elif id == ID_PASTE_PLUS:
-                event.Enable(win.CanPaste() and hasattr(win, 'PasteAndRun'))
-            elif id == ID_CLEAR:
-                event.Enable(win.CanCut())
-            elif id == ID_SELECTALL:
-                event.Enable(hasattr(win, 'SelectAll'))
-            elif id == ID_AUTOCOMP_SHOW:
-                event.Check(win.autoComplete)
-            elif id == ID_AUTOCOMP_MAGIC:
-                event.Check(win.autoCompleteIncludeMagic)
-            elif id == ID_AUTOCOMP_SINGLE:
-                event.Check(win.autoCompleteIncludeSingle)
-            elif id == ID_AUTOCOMP_DOUBLE:
-                event.Check(win.autoCompleteIncludeDouble)
-            elif id == ID_CALLTIPS_SHOW:
-                event.Check(win.autoCallTip)
-            elif id == ID_WRAP:
-                event.Check(win.GetWrapMode())
-            else:
-                event.Enable(False)
-        except AttributeError:
-            # This menu option is not supported in the current context.
-            event.Enable(False)

wxPython/wxPython/py/images.py

@@ -1,71 +0,0 @@
-#----------------------------------------------------------------------
-# This file was generated by ../scripts/img2py
-#
-from wxPython.wx import wxImageFromStream, wxBitmapFromImage
-from wxPython.wx import wxEmptyIcon
-import cStringIO
-
-
-def getPyCrustData():
-    return \
-'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00 \x00\x00\x00 \x08\x06\x00\
-\x00\x00szz\xf4\x00\x00\x00\x04sBIT\x08\x08\x08\x08|\x08d\x88\x00\x00\x04\
-\x95IDATx\x9c\xed\x97?lSG\x1c\xc7?\x97\x98\xd8Q\xa3\xdeY\xa2j\x06\xa4\xf7"QJ\
-\xbb<3@\x01\xa9\xc2\x0c\xa8!\x1d\x1c6\xcaB\xa8D[uI2\xf4\x8f\xe8\x103\xb4\xa2\
-,5\x0b\x03\x032C\xab\xc0\x92dh:t\xc0)*E\xcd@<Q\x01Rl\t\xd4D\xaa\xe4{R\xd0{&\
-\xa5\xd7\xe1\xfc\xec\xe7\xfciR\x08e\xe9O\xb2\xee|\xfe\xbd\xfb}~\xdf\xdf\xbd\
-\xbb\xb3PJ\xf1"\xad\xe3\x85F\xff\x1f\xe0y\x03h\xad\xcdA\xc7~\xb4\xd6f-\x9f\
-\xc4\xf3\x0c>Y\x1c#\x97\xddCUk\xf4B\x8d3\x9f\x8d\x9a\x9bU%\xe2~b\xab\xdf\x82\
-\x83N+\xd3\xe92\\\x1f\xcf\x93\xdd\x9f\xa1\xaa5\x95\xf9\n\xe7\xf3y\xe2\x10[V\
-\x82H\xe6\xd3G\x1dN\xf7\xc3\xa7\xc7a\xc0\x83\xc3\xc7\xf3\xcc\xcc\xcd\xe3(\
-\x85\xdb\xe7\xf2\xc9\xe8X\x1b\xe43+\x10\xd5\xb6\x94\x87Z\xe8\x90NU\x91I@\x00\
-\x06\xbe\x18\xb7J\x98\xca$`\x98\xb9]&{,\x8fRV\x85\xa7V@k\x9bq)o\x83+\t\xe9T\
-\xd5f\x95\x02\x91\xb4~_\r\xd9\xb6\xbaP\x03\x04n\x9f\xcbDa\xb8\t\xfe\xaf\x17a\
-<\xe3\xc8\x94lo\x9b\xd6\xa8\xf4\x80\x07\xb7o\xcd\xe0\x0c\x0e\xa2R\x8a\xb4\
-\x93n\xbal\x1a`e\xe0U\xc1\xd6\xb0\xb8\n\x99\x91"\x93\xaf\xba\xe4\x0ed\xda|6,\
-\x81\xd6\xda\x9c|\xab]\xea\xcd\x04\x8f\x9b\t\xad\nz\xa1\x02\x80\xdb\xe7R\x1a\
-\xcf\xa3\xb56\xeb\x02D5\x9e\xf8\xdc\xe1T\xff\xd3\x05\x8e\x82\x83U\xe1Z\xb1\
-\x18\x9b\xbf\x06\xacQ\x82H\xea\x01/Z@Ut\x08R\xb4$}\x16\xd3\x81A&%\xde\xee\
-\xbev\x80x\xe0]{\xb2\x1cR\xa5\xe6C*\xb5\xf1\xc4Q\xa6"e\xfbQ\x1b\x8dE\xe6\x87\
->\xaa[Q\xadi\x0b\xb0r\x8f\x9e.\xc3t\xb9\xc4]\xaf5\xf6\xfe\xdb\xddt&\x02\xfa\
-\x9c\xf5\x01\xe2A\xa2\xbeX\x01>]ntR\x12\xe3[\x00\x01\x98\x89\x11[_\xed\xafn\
-\xab\x81U\xa0\xe7I7\x00\x97o\x04\xcd\x89\x06<;\xe9\x80\x07]i\x97\xc17\x1f\
-\xd2\xd3\x91`\xe9\xaf?\x01p^Y\x06Z\n\xfau8?a\xfb]i\x97\xec\xa1\x8c\x05(|\xd8\
-N\xba\xb3\xab\x87\xfb\x8f\x97\xd8\xd9\xd5\x03\xc0\xfd\xc7K\xec\xd8\xd6\xdd\
-\xfc\xfd\xc1r\xd0\xf4\x01\xda~\x03H\xf4\x04\xd4j :\xb75\xc7\xae\xfd\xbcLW\
-\xda\xa5\xf0M\x1e\t\xcc\xcc\xcdq\xa9P@\x8c\xf5fL\xdaHF\x16g\x9a\x19\xad\xcc\
-\xee\xcb\xa3\n\xad\xa1\xda\xf1\x08\xef\xe5\x97x\xf8\xc8f\xf8\xc7\x93:\xdb;\
-\x93M\xc8\x08j\xc7\xb6n\x1e,\x07m`\x97o\x04|;>\xd1T\xc4\x17\x8a\x13\xb9\xc3\
-\x88\x01\x0fs\xa4\x9cc}\xf3A\x190\x82\x1f\xddR{-\x1bV\xfc\xd8f\xba\xbd3\xd9\
-\x06\x15\x07\xbb\xf8\xd3\x12\xdf]-"\x93\xb2\xb1C*\xde\xcd\x1d\xde\xccN(\xc1\
-\xae\x17"\xd0#+<j\x17m{\xcd\x9bj\x00.\xaf\xf0Xb\xb8\xdfA\xa6\x14\x18\x03\x06\
-\xb4o\xcf\x8d\xc4\xbervc\x86M\xdaz\x80\x00\x95T\x19?\xd0 @&%~c\xbc\xe3W\xaf\
-\xb4e\x00\xffh\xc6@\xbd\x11\xbc\xde\x1a\xfe\xef.\xa5\xa2q4\n0\x81\xad\xe9\
-\xae7<\x12\xaf\xf5\xc2hy\xaa\xe97\x9cS\\\x98\xb2\x0e\x03\xb1\xcdhW\xdaC\x1a\
-\xa0\xa2\xa0\x0e"\x14`\xb0Y\x85\x1b\x1f\x12\xaa7\x03)\xd9\x84\xa8\xccW\xb8{\
-\xa7L\xe2\xde\x02\x94\xc6Gp_\xcf\x80\x90\x98\xd0g\xf4\xac\x82Pc\x82\x1a\xd5\
-\x10\x08}&\xa7J\xcc\xde.1]m\x80\xf6+\xee\xfd\xae\x9bo\xc4\xf0;\x80\xef\x90\
-\x0e\x04\x06`Q!\x02\x05\xc2 \xb5\xc2\x95\x15d\xb4C&[\xf7\xd2\x04\x80\xbb\xdb\
-\x9e\xd1\x8e\x02\x90\xd8\xd4$ I\x87\x80\xf1\xf1\xdc!4\xc3\x88\x94}\xd8,TH\
-\xbb.5m\xf0C\x9f3\x1f\r\x01\x96.\x82\x1a9\xe9Q\xb8\xd2\xf8\xf25\x0c\xbe\xe7#\
-\x92\x12\x1d[\x03\t\x00E\xf4\xa6\t\xaaZ7`$\x18\x90\xf8\xf8\x80JK\x94\xa1\x01\
-\x07\xb8\x0e~X\xc3\xed\x16\xf8)\xf8~j\x12B\rI\x89_\xf7!0 \x04\xf9Q\xc0\x18\
-\x0c\xd1i\xea\x13\xb7\x04\xc0\x89\x93C\xabj\xb6\xf7@\x96\xd9_J|0:\x86R\n\xb7\
-\xd7@\xaa%\x9d\xa3$\xba.\x90RA]\xe3\x87\x1a\x89\xdd\xefeR\xc2\x1a\'\xa8\x1f\
-\x82\x0e-@m\xd1\xde\x076\xbc\x15\x97~(\x9a\x89b\x9e\xd9[s\xab!\xf7g\xd6\x1c\
-\x8f\xdb\xbel\x8e\xa1S\xc7\xda\xc6\xe6\xee\xccs\xe9\xdcYnV\x95\xd8\xf2?&q+\
-\x9c\x1b1\xf3\xbf\xcd3{\xfdJ\xdb\xf8\xde\xfd\x19.\\\xad\x08\x80\xbf\x01\xd1\
-\x86\xfa\x8b\xc7\xc0\xc8\xb7\x00\x00\x00\x00IEND\xaeB`\x82' 
-
-def getPyCrustBitmap():
-    return wxBitmapFromImage(getPyCrustImage())
-
-def getPyCrustImage():
-    stream = cStringIO.StringIO(getPyCrustData())
-    return wxImageFromStream(stream)
-
-def getPyCrustIcon():
-    icon = wxEmptyIcon()
-    icon.CopyFromBitmap(getPyCrustBitmap())
-    return icon
-

wxPython/wxPython/py/interpreter.py

@@ -1,125 +0,0 @@
-"""PyCrust Interpreter executes Python commands."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import os
-import sys
-from code import InteractiveInterpreter
-import dispatcher
-import introspect
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class Interpreter(InteractiveInterpreter):
-    """PyCrust Interpreter based on code.InteractiveInterpreter."""
-    
-    revision = __revision__
-    
-    def __init__(self, locals=None, rawin=None, 
-                 stdin=sys.stdin, stdout=sys.stdout, stderr=sys.stderr):
-        """Create an interactive interpreter object."""
-        InteractiveInterpreter.__init__(self, locals=locals)
-        self.stdin = stdin
-        self.stdout = stdout
-        self.stderr = stderr
-        if rawin:
-            import __builtin__
-            __builtin__.raw_input = rawin
-            del __builtin__
-        copyright = 'Type "help", "copyright", "credits" or "license"'
-        copyright += ' for more information.'
-        self.introText = 'Python %s on %s%s%s' % \
-                         (sys.version, sys.platform, os.linesep, copyright)
-        try:
-            sys.ps1
-        except AttributeError:
-            sys.ps1 = '>>> '
-        try:
-            sys.ps2
-        except AttributeError:
-            sys.ps2 = '... '
-        self.more = 0
-        # List of lists to support recursive push().
-        self.commandBuffer = []
-        self.startupScript = os.environ.get('PYTHONSTARTUP')
-
-    def push(self, command):
-        """Send command to the interpreter to be executed.
-        
-        Because this may be called recursively, we append a new list
-        onto the commandBuffer list and then append commands into
-        that.  If the passed in command is part of a multi-line
-        command we keep appending the pieces to the last list in
-        commandBuffer until we have a complete command. If not, we
-        delete that last list."""
-        command = str(command)  # In case the command is unicode.
-        if not self.more:
-            try: del self.commandBuffer[-1]
-            except IndexError: pass
-        if not self.more: self.commandBuffer.append([])
-        self.commandBuffer[-1].append(command)
-        source = '\n'.join(self.commandBuffer[-1])
-        more = self.more = self.runsource(source)
-        dispatcher.send(signal='Interpreter.push', sender=self,
-                        command=command, more=more, source=source)
-        return more
-        
-    def runsource(self, source):
-        """Compile and run source code in the interpreter."""
-        stdin, stdout, stderr = sys.stdin, sys.stdout, sys.stderr
-        sys.stdin, sys.stdout, sys.stderr = \
-                   self.stdin, self.stdout, self.stderr
-        more = InteractiveInterpreter.runsource(self, source)
-        # If sys.std* is still what we set it to, then restore it.
-        # But, if the executed source changed sys.std*, assume it was
-        # meant to be changed and leave it. Power to the people.
-        if sys.stdin == self.stdin:
-            sys.stdin = stdin
-        if sys.stdout == self.stdout:
-            sys.stdout = stdout
-        if sys.stderr == self.stderr:
-            sys.stderr = stderr
-        return more
-        
-    def getAutoCompleteKeys(self):
-        """Return list of auto-completion keycodes."""
-        return [ord('.')]
-
-    def getAutoCompleteList(self, command='', *args, **kwds):
-        """Return list of auto-completion options for a command.
-        
-        The list of options will be based on the locals namespace."""
-        stdin, stdout, stderr = sys.stdin, sys.stdout, sys.stderr
-        sys.stdin, sys.stdout, sys.stderr = \
-                   self.stdin, self.stdout, self.stderr
-        l = introspect.getAutoCompleteList(command, self.locals,
-                                           *args, **kwds)
-        sys.stdin, sys.stdout, sys.stderr = stdin, stdout, stderr
-        return l
-
-    def getCallTip(self, command='', *args, **kwds):
-        """Return call tip text for a command.
-        
-        Call tip information will be based on the locals namespace."""
-        return introspect.getCallTip(command, self.locals, *args, **kwds)
-
-
-class InterpreterAlaCarte(Interpreter):
-    """PyCrustAlaCarte Demo Interpreter."""
-    
-    def __init__(self, locals, rawin, stdin, stdout, stderr, 
-                 ps1='main prompt', ps2='continuation prompt'):
-        """Create an interactive interpreter object."""
-        Interpreter.__init__(self, locals=locals, rawin=rawin, 
-                             stdin=stdin, stdout=stdout, stderr=stderr)
-        sys.ps1 = ps1
-        sys.ps2 = ps2
-
-   

wxPython/wxPython/py/introspect.py

@@ -1,360 +0,0 @@
-"""Provides a variety of introspective-type support functions for
-things like call tips and command auto completion."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-from __future__ import nested_scopes
-
-import cStringIO
-import inspect
-import sys
-import tokenize
-import types
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-def getAutoCompleteList(command='', locals=None, includeMagic=1, 
-                        includeSingle=1, includeDouble=1):
-    """Return list of auto-completion options for command.
-    
-    The list of options will be based on the locals namespace."""
-    attributes = []
-    # Get the proper chunk of code from the command.
-    root = getRoot(command, terminator='.')
-    try:
-        if locals is not None:
-            object = eval(root, locals)
-        else:
-            object = eval(root)
-    except:
-        pass
-    else:
-        attributes = getAttributeNames(object, includeMagic, 
-                                       includeSingle, includeDouble)
-    return attributes
-    
-def getAttributeNames(object, includeMagic=1, includeSingle=1,
-                      includeDouble=1):
-    """Return list of unique attributes, including inherited, for object."""
-    attributes = []
-    dict = {}
-    if not hasattrAlwaysReturnsTrue(object):
-        # Add some attributes that don't always get picked up.  If
-        # they don't apply, they'll get filtered out at the end.
-        attributes += ['__bases__', '__class__', '__dict__', '__name__', 
-                       'func_closure', 'func_code', 'func_defaults', 
-                       'func_dict', 'func_doc', 'func_globals', 'func_name']
-    if includeMagic:
-        try: attributes += object._getAttributeNames()
-        except: pass
-    # Get all attribute names.
-    attrdict = getAllAttributeNames(object)
-    for attrlist in attrdict.values():
-        attributes += attrlist
-    # Remove duplicates from the attribute list.
-    for item in attributes:
-        dict[item] = None
-    attributes = dict.keys()
-    attributes.sort(lambda x, y: cmp(x.upper(), y.upper()))
-    if not includeSingle:
-        attributes = filter(lambda item: item[0]!='_' \
-                            or item[1]=='_', attributes)
-    if not includeDouble:
-        attributes = filter(lambda item: item[:2]!='__', attributes)
-    # Make sure we haven't picked up any bogus attributes somehow.
-    attributes = [attribute for attribute in attributes \
-                  if hasattr(object, attribute)]
-    return attributes
-
-def hasattrAlwaysReturnsTrue(object):
-    return hasattr(object, 'bogu5_123_aTTri8ute')
-
-def getAllAttributeNames(object):
-    """Return dict of all attributes, including inherited, for an object.
-    
-    Recursively walk through a class and all base classes.
-    """
-    attrdict = {}  # (object, technique, count): [list of attributes]
-    # !!!
-    # Do Not use hasattr() as a test anywhere in this function,
-    # because it is unreliable with remote objects: xmlrpc, soap, etc.
-    # They always return true for hasattr().
-    # !!!
-    try:
-        # Yes, this can fail if object is an instance of a class with
-        # __str__ (or __repr__) having a bug or raising an
-        # exception. :-(
-        key = str(object)
-    except:
-        key = 'anonymous'
-    # Wake up sleepy objects - a hack for ZODB objects in "ghost" state.
-    wakeupcall = dir(object)
-    del wakeupcall
-    # Get attributes available through the normal convention.
-    attributes = dir(object)
-    attrdict[(key, 'dir', len(attributes))] = attributes
-    # Get attributes from the object's dictionary, if it has one.
-    try:
-        attributes = object.__dict__.keys()
-        attributes.sort()
-    except:  # Must catch all because object might have __getattr__.
-        pass
-    else:
-        attrdict[(key, '__dict__', len(attributes))] = attributes
-    # For a class instance, get the attributes for the class.
-    try:
-        klass = object.__class__
-    except:  # Must catch all because object might have __getattr__.
-        pass
-    else:
-        if klass is object:
-            # Break a circular reference. This happens with extension
-            # classes.
-            pass
-        else:
-            attrdict.update(getAllAttributeNames(klass))
-    # Also get attributes from any and all parent classes.
-    try:
-        bases = object.__bases__
-    except:  # Must catch all because object might have __getattr__.
-        pass
-    else:
-        if isinstance(bases, types.TupleType):
-            for base in bases:
-                if type(base) is types.TypeType:
-                    # Break a circular reference. Happens in Python 2.2.
-                    pass
-                else:
-                    attrdict.update(getAllAttributeNames(base))
-    return attrdict
-
-def getCallTip(command='', locals=None):
-    """For a command, return a tuple of object name, argspec, tip text.
-    
-    The call tip information will be based on the locals namespace."""
-    calltip = ('', '', '')  # object name, argspec, tip text.
-    # Get the proper chunk of code from the command.
-    root = getRoot(command, terminator='(')
-    try:
-        if locals is not None:
-            object = eval(root, locals)
-        else:
-            object = eval(root)
-    except:
-        return calltip
-    name = ''
-    object, dropSelf = getBaseObject(object)
-    try:
-        name = object.__name__
-    except AttributeError:
-        pass
-    tip1 = ''
-    argspec = ''
-    if inspect.isbuiltin(object):
-        # Builtin functions don't have an argspec that we can get.
-        pass
-    elif inspect.isfunction(object):
-        # tip1 is a string like: "getCallTip(command='', locals=None)"
-        argspec = apply(inspect.formatargspec, inspect.getargspec(object))
-        if dropSelf:
-            # The first parameter to a method is a reference to an
-            # instance, usually coded as "self", and is usually passed
-            # automatically by Python; therefore we want to drop it.
-            temp = argspec.split(',')
-            if len(temp) == 1:  # No other arguments.
-                argspec = '()'
-            else:  # Drop the first argument.
-                argspec = '(' + ','.join(temp[1:]).lstrip()
-        tip1 = name + argspec
-    doc = ''
-    if callable(object):
-        doc = inspect.getdoc(object)
-    if doc:
-        # tip2 is the first separated line of the docstring, like:
-        # "Return call tip text for a command."
-        # tip3 is the rest of the docstring, like:
-        # "The call tip information will be based on ... <snip>
-        firstline = doc.split('\n')[0].lstrip()
-        if tip1 == firstline:
-            tip1 = ''
-        else:
-            tip1 += '\n\n'
-        docpieces = doc.split('\n\n')
-        tip2 = docpieces[0]
-        tip3 = '\n\n'.join(docpieces[1:])
-        tip = '%s%s\n\n%s' % (tip1, tip2, tip3)
-    else:
-        tip = tip1
-    calltip = (name, argspec[1:-1], tip.strip())
-    return calltip
-
-def getRoot(command, terminator=None):
-    """Return the rightmost root portion of an arbitrary Python command.
-    
-    Return only the root portion that can be eval()'d without side
-    effects.  The command would normally terminate with a '(' or
-    '.'. The terminator and anything after the terminator will be
-    dropped."""
-    command = command.split('\n')[-1]
-    if command.startswith(sys.ps2):
-        command = command[len(sys.ps2):]
-    command = command.lstrip()
-    command = rtrimTerminus(command, terminator)
-    tokens = getTokens(command)
-    if not tokens:
-        return ''
-    if tokens[-1][0] is tokenize.ENDMARKER:
-        # Remove the end marker.
-        del tokens[-1]
-    if not tokens:
-        return ''
-    if terminator == '.' and \
-           (tokens[-1][1] <> '.' or tokens[-1][0] is not tokenize.OP):
-        # Trap decimals in numbers, versus the dot operator.
-        return ''
-    else:
-        # Strip off the terminator.
-        if terminator and command.endswith(terminator):
-            size = 0 - len(terminator)
-            command = command[:size]
-    command = command.rstrip()
-    tokens = getTokens(command)
-    tokens.reverse()
-    line = ''
-    start = None
-    prefix = ''
-    laststring = '.'
-    emptyTypes = ('[]', '()', '{}')
-    for token in tokens:
-        tokentype = token[0]
-        tokenstring = token[1]
-        line = token[4]
-        if tokentype is tokenize.ENDMARKER:
-            continue
-        if tokentype in (tokenize.NAME, tokenize.STRING, tokenize.NUMBER) \
-        and laststring != '.':
-            # We've reached something that's not part of the root.
-            if prefix and line[token[3][1]] != ' ':
-                # If it doesn't have a space after it, remove the prefix.
-                prefix = ''
-            break
-        if tokentype in (tokenize.NAME, tokenize.STRING, tokenize.NUMBER) \
-        or (tokentype is tokenize.OP and tokenstring == '.'):
-            if prefix:
-                # The prefix isn't valid because it comes after a dot.
-                prefix = ''
-                break
-            else:
-                # start represents the last known good point in the line.
-                start = token[2][1]
-        elif len(tokenstring) == 1 and tokenstring in ('[({])}'):
-            # Remember, we're working backwords.
-            # So prefix += tokenstring would be wrong.
-            if prefix in emptyTypes and tokenstring in ('[({'):
-                # We've already got an empty type identified so now we
-                # are in a nested situation and we can break out with
-                # what we've got.
-                break
-            else:
-                prefix = tokenstring + prefix
-        else:
-            # We've reached something that's not part of the root.
-            break
-        laststring = tokenstring
-    if start is None:
-        start = len(line)
-    root = line[start:]
-    if prefix in emptyTypes:
-        # Empty types are safe to be eval()'d and introspected.
-        root = prefix + root
-    return root    
-
-def getTokens(command):
-    """Return list of token tuples for command."""
-    command = str(command)  # In case the command is unicode, which fails.
-    f = cStringIO.StringIO(command)
-    # tokens is a list of token tuples, each looking like: 
-    # (type, string, (srow, scol), (erow, ecol), line)
-    tokens = []
-    # Can't use list comprehension:
-    #   tokens = [token for token in tokenize.generate_tokens(f.readline)]
-    # because of need to append as much as possible before TokenError.
-    try:
-##        This code wasn't backward compatible with Python 2.1.3.
-##
-##        for token in tokenize.generate_tokens(f.readline):
-##            tokens.append(token)
-
-        # This works with Python 2.1.3 (with nested_scopes).
-        def eater(*args):
-            tokens.append(args)
-        tokenize.tokenize_loop(f.readline, eater)
-    except tokenize.TokenError:
-        # This is due to a premature EOF, which we expect since we are
-        # feeding in fragments of Python code.
-        pass
-    return tokens    
-
-def rtrimTerminus(command, terminator=None):
-    """Return command minus anything that follows the final terminator."""
-    if terminator:
-        pieces = command.split(terminator)
-        if len(pieces) > 1:
-            command = terminator.join(pieces[:-1]) + terminator
-    return command
-
-def getBaseObject(object):
-    """Return base object and dropSelf indicator for an object."""
-    if inspect.isbuiltin(object):
-        # Builtin functions don't have an argspec that we can get.
-        dropSelf = 0
-    elif inspect.ismethod(object):
-        # Get the function from the object otherwise
-        # inspect.getargspec() complains that the object isn't a
-        # Python function.
-        try:
-            if object.im_self is None:
-                # This is an unbound method so we do not drop self
-                # from the argspec, since an instance must be passed
-                # as the first arg.
-                dropSelf = 0
-            else:
-                dropSelf = 1
-            object = object.im_func
-        except AttributeError:
-            dropSelf = 0
-    elif inspect.isclass(object):
-        # Get the __init__ method function for the class.
-        constructor = getConstructor(object)
-        if constructor is not None:
-            object = constructor
-            dropSelf = 1
-        else:
-            dropSelf = 0
-    elif callable(object):
-        # Get the __call__ method instead.
-        try:
-            object = object.__call__.im_func
-            dropSelf = 1
-        except AttributeError:
-            dropSelf = 0
-    else:
-        dropSelf = 0
-    return object, dropSelf
-
-def getConstructor(object):
-    """Return constructor for class object, or None if there isn't one."""
-    try:
-        return object.__init__.im_func
-    except AttributeError:
-        for base in object.__bases__:
-            constructor = getConstructor(base)
-            if constructor is not None:
-                return constructor
-    return None

wxPython/wxPython/py/pseudo.py

@@ -1,107 +0,0 @@
-"""Provides a variety of classes to create pseudo keywords and pseudo files."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class PseudoKeyword:
-    """A callable class that calls a method passed as a parameter.
-
-    Good for creating a pseudo keyword in the python runtime
-    environment. The keyword is really an object that has a repr()
-    that calls itself which calls the method that was passed in the
-    init of the object. All this just to avoid having to type in the
-    closing parens on a method. So, for example:
-
-        >>> quit = PseudoKeyword(SomeObject.someMethod)
-        >>> quit
-
-    SomeObject.someMethod gets executed as if it had been called
-    directly and the user didn't have to type the parens, like
-    'quit()'. This technique is most applicable for pseudo keywords
-    like quit, exit and help.
-
-    If SomeObject.someMethod can take parameters, they can still be
-    passed by using the keyword in the traditional way with parens."""
-
-    def __init__(self, method):
-        """Create a callable object that executes method when called."""
-
-        if callable(method):
-            self.method = method
-        else:
-            raise ValueError, 'method must be callable'
-
-    def __call__(self, *args, **kwds):
-        self.method(*args, **kwds)
-
-    def __repr__(self):
-        self()
-        return ''
-
-
-class PseudoFile:
-
-    def __init__(self):
-        """Create a file-like object."""
-        pass
-
-    def readline(self):
-        pass
-
-    def write(self, s):
-        pass
-
-    def writelines(self, l):
-        map(self.write, l)
-
-    def flush(self):
-        pass
-
-    def isatty(self):
-        pass
-
-
-class PseudoFileIn(PseudoFile):
-
-    def __init__(self, readline, readlines=None):
-        if callable(readline):
-            self.readline = readline
-        else:
-            raise ValueError, 'readline must be callable'
-        if callable(readlines):
-            self.readlines = readlines
-
-    def isatty(self):
-        return 1
-        
-        
-class PseudoFileOut(PseudoFile):
-
-    def __init__(self, write):
-        if callable(write):
-            self.write = write
-        else:
-            raise ValueError, 'write must be callable'
-
-    def isatty(self):
-        return 1
-
-
-class PseudoFileErr(PseudoFile):
-
-    def __init__(self, write):
-        if callable(write):
-            self.write = write
-        else:
-            raise ValueError, 'write must be callable'
-
-    def isatty(self):
-        return 1

wxPython/wxPython/py/tests/test_interpreter.py

@@ -1,82 +0,0 @@
-#!/usr/bin/env python
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import unittest
-
-# Import from this module's parent directory.
-import os
-import sys
-sys.path.insert(0, os.pardir)
-import interpreter
-del sys.path[0]
-del sys
-del os
-
-
-"""
-These unittest methods are preferred:
--------------------------------------
-self.assert_(expr, msg=None)
-self.assertEqual(first, second, msg=None)
-self.assertRaises(excClass, callableObj, *args, **kwargs)
-self.fail(msg=None)
-self.failIf(expr, msg=None)
-"""
-
-
-class ModuleTestCase(unittest.TestCase):
-
-    def test_module(self):
-        module = interpreter
-        self.assert_(module.__author__)
-        self.assert_(module.__cvsid__)
-        self.assert_(module.__revision__)
-        self.assert_(module.Interpreter)
-        self.assert_(module.Interpreter.push)
-        self.assert_(module.Interpreter.runsource)
-        self.assert_(module.Interpreter.getAutoCompleteList)
-        self.assert_(module.Interpreter.getCallTip)
-        self.assert_(module.InterpreterAlaCarte)
-
-
-class InterpreterTestCase(unittest.TestCase):
-
-    def setUp(self):
-        self.output = ''
-        self.i = interpreter.Interpreter(stdout=self)
-
-    def write(self, text):
-        """Capture output from self.i.push()."""
-        self.output += text
-
-    def tearDown(self):
-        self.output = ''
-        self.i = None
-        del self.i
-
-    def test_more(self):
-        self.assertEqual(self.i.push('dir()'), 0)
-        self.assertEqual(self.i.push('for n in range(3):'), 1)
-
-    def test_push(self):
-        values = (
-        ('dir', '<built-in function dir>'),
-        ('dir()', "['__builtins__', '__doc__', '__name__']"),
-        ('2 + 2', '4'),
-        ('d = {}', ''),
-        ('d', '{}'),
-        ('del d', ''),
-        ('len([4,5,6])', '3'),
-        )
-        for input, output in values:
-            if output: output += '\n'
-            self.i.push(input)
-            self.assertEqual(self.output, output)
-            self.output = ''
-
-
-if __name__ == '__main__':
-    unittest.main()

wxPython/wxPython/py/tests/test_introspect.py

@@ -1,862 +0,0 @@
-#!/usr/bin/env python
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import unittest
-
-# Import from this module's parent directory.
-import os
-import sys
-sys.path.insert(0, os.pardir)
-import introspect
-del sys.path[0]
-del sys
-del os
-
-
-"""
-These unittest methods are preferred:
--------------------------------------
-self.assert_(expr, msg=None)
-self.assertEqual(first, second, msg=None)
-self.assertRaises(excClass, callableObj, *args, **kwargs)
-self.fail(msg=None)
-self.failIf(expr, msg=None)
-"""
-
-
-class ModuleTestCase(unittest.TestCase):
-
-    def test_module(self):
-        module = introspect
-        self.assert_(module.__author__)
-        self.assert_(module.__cvsid__)
-        self.assert_(module.__revision__)
-        self.assert_(module.getAllAttributeNames)
-        self.assert_(module.getAttributeNames)
-        self.assert_(module.getAutoCompleteList)
-        self.assert_(module.getBaseObject)
-        self.assert_(module.getCallTip)
-        self.assert_(module.getConstructor)
-        self.assert_(module.getRoot)
-        self.assert_(module.rtrimTerminus)
-
-
-class RtrimTerminusTestCase(unittest.TestCase):
-
-    def test_rtrimTerminus(self):
-        values = (
-            ('', '', ''),
-            ('', None, ''),
-            ('', '.', ''),
-            ('', '(', ''),
-            
-            ('.', '', '.'),
-            ('.', None, '.'),
-            ('.', '.', '.'),
-            ('.', '(', '.'),
-            
-            ('(', '', '('),
-            ('(', None, '('),
-            ('(', '.', '('),
-            ('(', '(', '('),
-            
-            ('spam', '', 'spam'),
-            ('spam', None, 'spam'),
-            ('spam', '.', 'spam'),
-            ('spam', '(', 'spam'),
-            
-            ('spam.', '', 'spam.'),
-            ('spam.', None, 'spam.'),
-            ('spam.', '.', 'spam.'),
-            ('spam.', '(', 'spam.'),
-            
-            ('spam(', '', 'spam('),
-            ('spam(', None, 'spam('),
-            ('spam(', '.', 'spam('),
-            ('spam(', '(', 'spam('),
-            
-            ('spam.eggs', '.', 'spam.'),
-            ('spam.eggs.', '.', 'spam.eggs.'),
-            ('spam.eggs(', '(', 'spam.eggs('),
-            ('spam.eggs.', '(', 'spam.eggs.'),
-            ('spam.eggs(', '.', 'spam.'),
-            
-            ('x = spam.', '.', 'x = spam.'),
-            ('x = spam.eggs', '.', 'x = spam.'),
-            ('x = spam.eggs.', '.', 'x = spam.eggs.'),
-            ('x = spam.eggs(', '(', 'x = spam.eggs('),
-        )
-        for input, terminator, output in values:
-            result = introspect.rtrimTerminus(input, terminator)
-            self.assertEqual(result, output,
-                             ':in: %r :t: %r :out: %r :result: %r' %
-                             (input, terminator, output, result))
-
-
-class GetRootTestCase(unittest.TestCase):
-
-    def _checkRoot(self, input, terminator, output):
-        root = introspect.getRoot(command=input, terminator=terminator)
-        self.assertEqual(root, output,
-                         ':in: %r :t: %r :out: %r :root: %r' %
-                         (input, terminator, output, root))
-
-    def test_getRoot(self):
-        values = (
-            ('', '', ''),
-            ('', None, ''),
-            ('', '.', ''),
-            ('', '(', ''),
-            
-            ('.', '', '.'),
-            ('.', None, '.'),
-            ('.', '.', ''),
-            ('.', '(', '.'),
-            
-            ('(', '', ''),
-            ('(', None, ''),
-            ('(', '.', ''),
-            ('(', '(', ''),
-            
-            ('spam', '', 'spam'),
-            ('spam', None, 'spam'),
-            ('spam', '.', ''),
-            ('spam', '(', 'spam'),
-            
-            ('spam.', '', 'spam.'),
-            ('spam.', None, 'spam.'),
-            ('spam.', '.', 'spam'),
-            ('spam.', '(', 'spam.'),
-            
-            ('spam(', '', ''),
-            ('spam(', None, ''),
-            ('spam(', '.', ''),
-            ('spam(', '(', 'spam'),
-            
-            ('spam.eggs', '.', 'spam'),
-            ('spam.eggs.', '.', 'spam.eggs'),
-            ('spam.eggs(', '(', 'spam.eggs'),
-            ('spam.eggs.', '(', 'spam.eggs.'),
-            ('spam.eggs(', '.', 'spam'),
-            
-            ('x = spam.', '.', 'spam'),
-            ('x = spam.eggs', '.', 'spam'),
-            ('x = spam.eggs.', '.', 'spam.eggs'),
-            ('x = spam.eggs(', '(', 'spam.eggs'),
-
-            ('for n in range(3):\n    d.', '.', 'd'),
-            ('for n in range(3):\n...    d.', '.', 'd'),
-        )
-        for input, terminator, output in values:
-            self._checkRoot(input, terminator, output)
-
-    def test_getRoot_Advanced(self):
-        values = (
-            ('spam_', '', 'spam_'),
-            ('spam_', None, 'spam_'),
-            ('spam_', '.', ''),
-            ('spam_', '(', 'spam_'),
-            
-            ('_spam', '', '_spam'),
-            ('_spam', None, '_spam'),
-            ('_spam', '.', ''),
-            ('_spam', '(', '_spam'),
-            
-            ('spam_eggs', '', 'spam_eggs'),
-            ('spam_eggs', None, 'spam_eggs'),
-            ('spam_eggs', '.', ''),
-            ('spam_eggs', '(', 'spam_eggs'),
-            
-            ('spam123', '', 'spam123'),
-            ('spam123', None, 'spam123'),
-            ('spam123', '.', ''),
-            ('spam123', '(', 'spam123'),
-
-            ('spam_123', '', 'spam_123'),
-            ('spam_123', None, 'spam_123'),
-            ('spam_123', '.', ''),
-            ('spam_123', '(', 'spam_123'),
-        )
-        for input, terminator, output in values:
-            self._checkRoot(input, terminator, output)
-
-## The original intent was to detect when we were inside a string.
-## That has proven to be very difficult, for little benefit.
-## The fact that autocomplete or calltips might be triggered inside
-## a string is not a big deal. Sometimes it is even helpful.
-
-##    def test_getRoot_InsideStrings(self):
-##        values = (
-##            ('x = ".', '.', ''),
-##            ("x = '.", '.', ''),
-##            ('x = """.', '.', ''),
-##            ("x = '''.", '.', ''),
-##
-##            ('x = "(', '(', ''),
-##            ("x = '(", '(', ''),
-##            ('x = """(', '(', ''),
-##            ("x = '''(", '(', ''),
-##
-##            ('x = "spam', '.', ''),
-##            ('x = "spam.', '.', ''),
-##            ("x = 'spam.", '.', ''),
-##            ('x = """spam.', '.', ''),
-##            ("x = '''spam.", '.', ''),
-##            
-##            ('x = "spam', '(', ''),
-##            ('x = "spam(', '(', ''),
-##            ("x = 'spam(", '(', ''),
-##            ('x = """spam(', '(', ''),
-##            ("x = '''spam(", '(', ''),
-##            
-##            ('x = "spam.eggs.', '.', ''),
-##            ("x = 'spam.eggs.", '.', ''),
-##            ('x = """spam.eggs.', '.', ''),
-##            ("x = '''spam.eggs.", '.', ''),
-##            
-##            ('x = "spam.eggs(', '(', ''),
-##            ("x = 'spam.eggs(", '(', ''),
-##            ('x = """spam.eggs(', '(', ''),
-##            ("x = '''spam.eggs(", '(', ''),
-##        )
-##        for input, terminator, output in values:
-##            self._checkRoot(input, terminator, output)
-
-    def test_getRoot_EmptyTypes(self):
-        values = (
-            ("''.", '.', "''"),
-            ('"".', '.', '""'),
-            ('"""""".', '.', '""""""'),
-            ("''''''.", '.', "''''''"),
-
-            ('[].', '.', '[]'),
-            ('().', '.', '()'),
-            ('{}.', '.', '{}'),
-            
-            ('[](', '(', '[]'),
-            ('()(', '(', '()'),
-            ('{}(', '(', '{}'),
-            
-            ("x = ''.", '.', "''"),
-            ('x = "".', '.', '""'),
-            ('x = """""".', '.', '""""""'),
-            ("x = ''''''.", '.', "''''''"),
-
-            ('x = [].', '.', '[]'),
-            ('x = ().', '.', '()'),
-            ('x = {}.', '.', '{}'),
-            
-            ('x = [](', '(', '[]'),
-            ('x = ()(', '(', '()'),
-            ('x = {}(', '(', '{}'),
-
-            ('print [].', '.', '[]'),
-            ('print ().', '.', '()'),
-            ('print {}.', '.', '{}'),
-            
-            ('print [](', '(', '[]'),
-            ('print ()(', '(', '()'),
-            ('print {}(', '(', '{}'),
-
-            ("''.attr.", '.', "''.attr"),
-            ('"".attr.', '.', '"".attr'),
-            ('"""""".attr.', '.', '"""""".attr'),
-            ("''''''.attr.", '.', "''''''.attr"),
-
-            ('[].attr.', '.', '[].attr'),
-            ('().attr.', '.', '().attr'),
-            ('{}.attr.', '.', '{}.attr'),
-            
-            ('[].attr(', '(', '[].attr'),
-            ('().attr(', '(', '().attr'),
-            ('{}.attr(', '(', '{}.attr'),
-
-            ('spam().', '.', ''),
-            ('spam_().', '.', ''),
-            ('spam5().', '.', ''),
-            ('spam[]().', '.', ''),
-            ('spam()[].', '.', ''),
-            ('spam[]{}.', '.', ''),
-
-            ("spam(''.", '.', "''"),
-            ('spam("".', '.', '""'),
-            ('spam("""""".', '.', '""""""'),
-            ("spam(''''''.", '.', "''''''"),
-
-            ('spam([].', '.', '[]'),
-            ('spam(().', '.', '()'),
-            ('spam({}.', '.', '{}'),
-            ('spam[[].', '.', '[]'),
-            ('spam[().', '.', '()'),
-            ('spam[{}.', '.', '{}'),
-            ('x = {[].', '.', '[]'),
-            ('x = {().', '.', '()'),
-            ('x = {{}.', '.', '{}'),
-
-            ('spam,[].', '.', '[]'),
-            ('spam+[].', '.', '[]'),
-            ('spam-[].', '.', '[]'),
-            ('spam*[].', '.', '[]'),
-            ('spam/[].', '.', '[]'),
-            ('spam=[].', '.', '[]'),
-            ('spam%[].', '.', '[]'),
-            ('spam<[].', '.', '[]'),
-            ('spam>[].', '.', '[]'),
-            ('spam&[].', '.', '[]'),
-            ('spam|[].', '.', '[]'),
-            ('spam^[].', '.', '[]'),
-            ('spam~[].', '.', '[]'),
-            ('spam:[].', '.', '[]'),
-
-            ('spam,().', '.', '()'),
-            ('spam+().', '.', '()'),
-            ('spam-().', '.', '()'),
-            ('spam*().', '.', '()'),
-            ('spam/().', '.', '()'),
-            ('spam=().', '.', '()'),
-            ('spam%().', '.', '()'),
-            ('spam<().', '.', '()'),
-            ('spam>().', '.', '()'),
-            ('spam&().', '.', '()'),
-            ('spam|().', '.', '()'),
-            ('spam^().', '.', '()'),
-            ('spam~().', '.', '()'),
-            ('spam:().', '.', '()'),
-
-            ('spam,{}.', '.', '{}'),
-            ('spam+{}.', '.', '{}'),
-            ('spam-{}.', '.', '{}'),
-            ('spam*{}.', '.', '{}'),
-            ('spam/{}.', '.', '{}'),
-            ('spam={}.', '.', '{}'),
-            ('spam%{}.', '.', '{}'),
-            ('spam<{}.', '.', '{}'),
-            ('spam>{}.', '.', '{}'),
-            ('spam&{}.', '.', '{}'),
-            ('spam|{}.', '.', '{}'),
-            ('spam^{}.', '.', '{}'),
-            ('spam~{}.', '.', '{}'),
-            ('spam:{}.', '.', '{}'),
-        )
-        for input, terminator, output in values:
-            self._checkRoot(input, terminator, output)
-
-
-# Support for GetBaseObjectTestCase and GetAttributeNamesTestCase.
-
-class Foo:
-    def __init__(self):
-        pass
-
-    def __del__(self):
-        pass
-
-    def _private(self):
-        pass
-
-class Bar:
-    pass
-
-class Spam:
-    def __call__(self):
-        pass
-
-    def foo(self):
-        pass
-
-    def bar(spam):
-        # It shouldn't matter what we call "self".
-        pass
-
-    def eggs(self):
-        pass
-
-def ham(eggs):
-    pass
-
-class GetBaseObjectTestCase(unittest.TestCase):
-
-    def test_getBaseObject(self):
-        spam = Spam()
-        eggs = Spam.eggs
-        listappend = [].append
-        spamda = lambda: None
-        values = (
-            ('spam', 'spam', 0),
-            (123, 123, 0),
-            (12.3, 12.3, 0),
-            ([], [], 0),
-            ((), (), 0),
-            ({}, {}, 0),
-            # Builtin function.
-            (len, len, 0),
-            # Builtin method.
-            (listappend, listappend, 0),
-            # User function.
-            (ham, ham, 0),
-            # Byte-compiled code.
-            (ham.func_code, ham.func_code, 0),
-            # Lambda.
-            (spamda, spamda, 0),
-            # Class with init.
-            (Foo, Foo.__init__.im_func, 1),
-            # Class with no init.
-            (Bar, Bar, 0),
-            # Bound method.
-            (spam.foo, spam.foo.im_func, 1),
-            # Bound method with self named something else (spam).
-            (spam.bar, spam.bar.im_func, 1),
-            # Unbound method. (Do not drop the self argument.)
-            (eggs, eggs.im_func, 0),
-            # Callable instance.
-            (spam, spam.__call__.im_func, 1),
-        )
-        for object, baseObject, dropSelf in values:
-            result = introspect.getBaseObject(object)
-            self.assertEqual(result, (baseObject, dropSelf))
-
-
-class GetAttributeTestCase(unittest.TestCase):
-    """Base class for other test case classes."""
-
-    def setUp(self):
-        self.values = (
-            '__abs__',
-            '__add__',
-            '__and__',
-            '__base__',
-            '__bases__',
-            '__basicsize__',
-            '__builtins__',
-            '__call__',
-            '__class__',
-            '__cmp__',
-            '__coerce__',
-            '__contains__',
-            '__del__',
-            '__delattr__',
-            '__delitem__',
-            '__delslice__',
-            '__dict__',
-            '__dictoffset__',
-            '__div__',
-            '__divmod__',
-            '__doc__',
-            '__eq__',
-            '__file__',
-            '__flags__',
-            '__float__',
-            '__floordiv__',
-            '__ge__',
-            '__get__',
-            '__getattr__',
-            '__getattribute__',
-            '__getitem__',
-            '__getslice__',
-            '__gt__',
-            '__hash__',
-            '__hex__',
-            '__iadd__',
-            '__imul__',
-            '__init__',
-            '__int__',
-            '__invert__',
-            '__itemsize__',
-            '__iter__',
-            '__le__',
-            '__len__',
-            '__long__',
-            '__lshift__',
-            '__lt__',
-            '__mod__',
-            '__module__',
-            '__mro__',
-            '__mul__',
-            '__name__',
-            '__ne__',
-            '__neg__',
-            '__new__',
-            '__nonzero__',
-            '__oct__',
-            '__or__',
-            '__path__',
-            '__pos__',
-            '__pow__',
-            '__radd__',
-            '__rand__',
-            '__rdiv__',
-            '__rdivmod__',
-            '__reduce__',
-            '__repr__',
-            '__rfloordiv__',
-            '__rlshift__',
-            '__rmod__',
-            '__rmul__',
-            '__ror__',
-            '__rpow__',
-            '__rrshift__',
-            '__rshift__',
-            '__rsub__',
-            '__rtruediv__',
-            '__rxor__',
-            '__self__',
-            '__setattr__',
-            '__setitem__',
-            '__setslice__',
-            '__str__',
-            '__sub__',
-            '__subclasses__',
-            '__truediv__',
-            '__warningregistry__',
-            '__weakrefoffset__',
-            '__xor__',
-            'append',
-            'capitalize',
-            'center',
-            'clear',
-            'close',
-            'closed',
-            'co_argcount',
-            'co_cellvars',
-            'co_code',
-            'co_consts',
-            'co_filename',
-            'co_firstlineno',
-            'co_flags',
-            'co_freevars',
-            'co_lnotab',
-            'co_name',
-            'co_names',
-            'co_nlocals',
-            'co_stacksize',
-            'co_varnames',
-            'conjugate',
-            'copy',
-            'count',
-            'decode',
-            'encode',
-            'endswith',
-            'expandtabs',
-            'extend',
-            'fileno',
-            'find',
-            'flush',
-            'func_closure',
-            'func_code',
-            'func_defaults',
-            'func_dict',
-            'func_doc',
-            'func_globals',
-            'func_name',
-            'get',
-            'has_key',
-            'im_class',
-            'im_func',
-            'im_self',
-            'imag',
-            'index',
-            'insert',
-            'isalnum',
-            'isalpha',
-            'isatty',
-            'isdigit',
-            'islower',
-            'isspace',
-            'istitle',
-            'isupper',
-            'items',
-            'iteritems',
-            'iterkeys',
-            'itervalues',
-            'join',
-            'keys',
-            'ljust',
-            'lower',
-            'lstrip',
-            'mode',
-            'mro',
-            'name',
-            'pop',
-            'popitem',
-            'real',
-            'read',
-            'readinto',
-            'readline',
-            'readlines',
-            'remove',
-            'replace',
-            'reverse',
-            'rfind',
-            'rindex',
-            'rjust',
-            'rstrip',
-            'seek',
-            'setdefault',
-            'softspace',
-            'sort',
-            'split',
-            'splitlines',
-            'start',
-            'startswith',
-            'step',
-            'stop',
-            'strip',
-            'swapcase',
-            'tell',
-            'title',
-            'tolist',
-            'translate',
-            'truncate',
-            'update',
-            'upper',
-            'values',
-            'write',
-            'writelines',
-            'xreadlines',
-        )
-
-# Since getAllAttributeNames() calls str(object),
-# we need to test for a broken __str__ method.
-class BrokenStr:
-    def __str__(self):
-        raise Exception
-    
-brokenStr = BrokenStr()
-
-class GetAttributeNamesTestCase(GetAttributeTestCase):
-
-    def setUp(self):
-        GetAttributeTestCase.setUp(self)
-        import PyCrust
-        spam = Spam()
-        self.f = open('test_introspect.py')
-        self.items = (
-            None,
-            int(123),
-            long(123),
-            float(123),
-            complex(123),
-            "",
-            unicode(""),
-            [],
-            (),
-            xrange(0),
-            {},
-            # Builtin function.
-            len,
-            # Builtin method.
-            [].append,
-            # User function.
-            ham,
-            # Byte-compiled code.
-            ham.func_code,
-            # Lambda.
-            lambda: None,
-            # Class with no init.
-            Bar,
-            # Instance with no init.
-            Bar(),
-            # Class with init and del.
-            Foo,
-            # Instance with init and del.
-            Foo(),
-            # Bound method.
-            spam.foo,
-            # Unbound method.
-            Spam.eggs,
-            # Callable instance.
-            spam,
-            # Module.
-            introspect,
-            # Package.
-            PyCrust,
-            # Buffer.
-            buffer(''),
-            # File.
-            self.f,
-            # Slice.
-            slice(0),
-            # Ellipsis.
-            Ellipsis,
-            # BrokenStr class.
-            BrokenStr,
-            # BrokenStr instance.
-            brokenStr,
-        )
-
-    def tearDown(self):
-        self.items = None
-        self.f.close()
-
-    def test_getAttributeNames(self):
-        for item in self.items:
-            self._checkAttributeNames(item)
-        if __builtins__.has_key('object'):
-            self._checkAttributeNames(object)
-
-    def test_getAttributeNames_NoSingle(self):
-        for item in self.items:
-            result = introspect.getAttributeNames(item, includeSingle=0)
-            attributes = [attribute for attribute in result \
-                          if attribute[0] != '_' or attribute[:2] == '__']
-            self.assertEqual(result, attributes, 
-                             ':item: %r' % (item,))
-
-    def test_getAttributeNames_NoDouble(self):
-        for item in self.items:
-            result = introspect.getAttributeNames(item, includeDouble=0)
-            attributes = [attribute for attribute in result \
-                          if attribute[:2] != '__']
-            self.assertEqual(result, attributes, 
-                             ':item: %r' % (item,))
-
-    def test_getAttributeNames_NoSingleOrDouble(self):
-        for item in self.items:
-            result = introspect.getAttributeNames(item, includeSingle=0, 
-                                                  includeDouble=0)
-            attributes = [attribute for attribute in result \
-                          if attribute[0] != '_']
-            self.assertEqual(result, attributes, 
-                             ':item: %r' % (item,))
-
-    def _checkAttributeNames(self, item):
-        result = introspect.getAttributeNames(item)
-        attributes = [attribute for attribute in self.values \
-                      if hasattr(item, attribute)]
-        for attribute in attributes:
-            self.assert_(attribute in result, 
-                         ':item: %r :attribute: %r' % (item, attribute))
-
-
-class GetAutoCompleteListTestCase(GetAttributeTestCase):
-
-    def setUp(self):
-        GetAttributeTestCase.setUp(self)
-        self.items = (
-            'None.',
-            '123 .',
-            '"".',
-            '[].',
-            '().',
-            '{}.',
-            # Builtin function.
-            'len.',
-            # Builtin method.
-            '[].append.',
-        )
-
-    def test_getAutoCompleteList(self):
-        for item in self.items:
-            result = introspect.getAutoCompleteList(item)
-            object = eval(item[:-1])
-            attributes = [attribute for attribute in self.values \
-                          if hasattr(object, attribute)]
-            for attribute in attributes:
-                self.assert_(attribute in result, 
-                             ':item: %r :attribute: %r' % (item, attribute))
-
-    def test_getAutoCompleteList_NoSingle(self):
-        for item in self.items:
-            result = introspect.getAutoCompleteList(item, includeSingle=0)
-            attributes = [attribute for attribute in result \
-                          if attribute[0] != '_' or attribute[:2] == '__']
-            self.assertEqual(result, attributes, 
-                             ':item: %r' % (item,))
-
-    def test_getAutoCompleteList_NoDouble(self):
-        for item in self.items:
-            result = introspect.getAutoCompleteList(item, includeDouble=0)
-            attributes = [attribute for attribute in result \
-                          if attribute[:2] != '__']
-            self.assertEqual(result, attributes, 
-                             ':item: %r' % (item,))
-
-    def test_getAutoCompleteList_NoSingleOrDouble(self):
-        for item in self.items:
-            result = introspect.getAutoCompleteList(item, includeSingle=0, 
-                                                    includeDouble=0)
-            attributes = [attribute for attribute in result \
-                          if attribute[0] != '_']
-            self.assertEqual(result, attributes, 
-                             ':item: %r' % (item,))
-
-
-# Support for GetConstructorTestCase.
-
-class A1:
-    def __init__(self, a):
-        self.a = a
-
-class B1(A1):
-    def __init__(self, b):
-        self.b = b
-
-class C1(A1):
-    pass
-
-class D1(C1, B1):
-    pass
-
-if __builtins__.has_key('object'):
-    class A2(object):
-        def __init__(self, a):
-            self.a = a
-
-    class B2(A2):
-        def __init__(self, b):
-            self.b = b
-
-    class C2(A2):
-        pass
-
-    class D2(C2, B2):
-        pass
-    
-class N:
-    pass
-
-class O:
-    def __init__(self, a, b=2, *args, **kwargs):
-        pass
-
-class P(O):
-    pass
-
-class Q(P):
-    def __init__(self, c, d=4):
-        pass
-
-class GetConstructorTestCase(unittest.TestCase):
-
-    def test_getConstructor(self):
-        args = ('self', 'a', 'b', 'args', 'kwargs')
-        varnames = introspect.getConstructor(O).func_code.co_varnames
-        self.assertEqual(varnames, args)
-        varnames = introspect.getConstructor(P).func_code.co_varnames
-        self.assertEqual(varnames, args)
-        args = ('self', 'c', 'd')
-        varnames = introspect.getConstructor(Q).func_code.co_varnames
-        self.assertEqual(varnames, args)
-
-    def test_getConstructor_None(self):
-        values = (N, 1, 'spam', {}, [], (), dir)
-        for value in values:
-            self.assertEqual(introspect.getConstructor(N), None)
-
-    def test_getConstructor_MultipleInheritance(self):
-        # Test old style inheritance rules.
-        args = ('self', 'a')
-        varnames = introspect.getConstructor(D1).func_code.co_varnames
-        self.assertEqual(varnames, args)
-        if __builtins__.has_key('object'):
-            # Test new style inheritance rules as well.
-            args = ('self', 'b')
-            varnames = introspect.getConstructor(D2).func_code.co_varnames
-            self.assertEqual(varnames, args)
-
-
-if __name__ == '__main__':
-    unittest.main()

wxPython/wxPython/py/tests/test_pseudo.py

@@ -1,81 +0,0 @@
-#!/usr/bin/env python
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import unittest
-
-# Import from this module's parent directory.
-import os
-import sys
-sys.path.insert(0, os.pardir)
-import pseudo
-del sys.path[0]
-del sys
-del os
-
-
-"""
-These unittest methods are preferred:
--------------------------------------
-self.assert_(expr, msg=None)
-self.assertEqual(first, second, msg=None)
-self.assertRaises(excClass, callableObj, *args, **kwargs)
-self.fail(msg=None)
-self.failIf(expr, msg=None)
-"""
-
-
-class ModuleTestCase(unittest.TestCase):
-
-    def test_module(self):
-        module = pseudo
-        self.assert_(module.__author__)
-        self.assert_(module.__cvsid__)
-        self.assert_(module.__revision__)
-        self.assert_(module.PseudoFile)
-        self.assert_(module.PseudoFileErr)
-        self.assert_(module.PseudoFileIn)
-        self.assert_(module.PseudoFileOut)
-        self.assert_(module.PseudoKeyword)
-
-
-class PseudoTestCase(unittest.TestCase):
-
-    def setUp(self):
-        pass
-
-    def tearDown(self):
-        pass
-
-
-class PseudoFileTestCase(unittest.TestCase):
-
-    def setUp(self):
-        pass
-
-    def tearDown(self):
-        pass
-
-
-class PseudoFileOutTestCase(unittest.TestCase):
-
-    def setUp(self):
-        pass
-
-    def tearDown(self):
-        pass
-
-    def _write(self):
-        pass
-
-    def test_PseudoFileOut_goodInit(self):
-        self.assert_(pseudo.PseudoFileOut(write=self._write))
-
-    def test_PseudoFileOut_badInit(self):
-        self.assertRaises(ValueError, pseudo.PseudoFileOut, write='bad')
-
-
-if __name__ == '__main__':
-    unittest.main()

wxPython/wxPython/py/tests/test_version.py

@@ -1,49 +0,0 @@
-#!/usr/bin/env python
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-import unittest
-
-import types
-
-# Import from this module's parent directory.
-import os
-import sys
-sys.path.insert(0, os.pardir)
-import version
-del sys.path[0]
-del sys
-del os
-
-
-"""
-These unittest methods are preferred:
--------------------------------------
-self.assert_(expr, msg=None)
-self.assertEqual(first, second, msg=None)
-self.assertRaises(excClass, callableObj, *args, **kwargs)
-self.fail(msg=None)
-self.failIf(expr, msg=None)
-"""
-
-
-class ModuleTestCase(unittest.TestCase):
-
-    def test_module(self):
-        module = version
-        self.assert_(module.__author__)
-        self.assert_(module.__cvsid__)
-        self.assert_(module.__revision__)
-        self.assert_(module.VERSION)
-
-
-class VersionTestCase(unittest.TestCase):
-
-    def test_VERSION(self):
-        self.assert_(type(version.VERSION) is types.StringType)
-
-
-if __name__ == '__main__':
-    unittest.main()

wxPython/wxPython/py/tests/testall.py

@@ -1,25 +0,0 @@
-#!/usr/bin/env python
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-
-import unittest
-import glob
-import os
-
-
-def suite():
-    """Return a test suite containing all test cases in all test modules. 
-    Searches the current directory for any modules matching test_*.py."""
-    suite = unittest.TestSuite()
-    for filename in glob.glob('test_*.py'):
-        module = __import__(os.path.splitext(filename)[0])
-        suite.addTest(unittest.defaultTestLoader.loadTestsFromModule(module))
-    return suite
-
-
-if __name__ == '__main__':
-    unittest.main(defaultTest='suite')
-

wxPython/wxPython/py/version.py

@@ -1,11 +0,0 @@
-"""Provides an object representing the current 'version' or 'release'
-of PyCrust as a whole.  Individual classes, such as the shell, filling
-and interpreter, each have a revision property based on the CVS
-Revision."""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-VERSION = '0.9.1'
- 

wxPython/wxPython/py/wxd/Accelerators.py

@@ -1,58 +0,0 @@
-"""Decorator classes for documentation and shell scripting.
-"""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-
-# These are not the real wxPython classes. These are Python versions
-# for documentation purposes. They are also used to apply docstrings
-# to the real wxPython classes, which are SWIG-generated wrappers for
-# C-language classes.
-
-
-from Base import Object
-import Parameters as wx
-
-
-class AcceleratorEntry:
-    """"""
-
-    def __init__(self):
-        """"""
-        pass
-
-    def __del__(self):
-        """"""
-        pass
-
-    def GetCommand(self):
-        """"""
-        pass
-
-    def GetFlags(self):
-        """"""
-        pass
-
-    def GetKeyCode(self):
-        """"""
-        pass
-
-    def Set(self):
-        """"""
-        pass
-
-
-class AcceleratorTable(Object):
-    """"""
-
-    def __init__(self):
-        """"""
-        pass
-
-    def __del__(self):
-        """"""
-        pass
-
-

wxPython/wxPython/py/wxd/App.py

@@ -1,358 +0,0 @@
-"""Decorator classes for documentation and shell scripting.
-"""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-
-# These are not the real wxPython classes. These are Python versions
-# for documentation purposes. They are also used to apply docstrings
-# to the real wxPython classes, which are SWIG-generated wrappers for
-# C-language classes.
-
-
-from Base import EvtHandler
-import Parameters as wx
-
-try:
-    True
-except NameError:
-    True = 1==1
-    False = 1==0
-
-
-class PyApp(EvtHandler):
-    """Python Application base class.
-
-    It is used to:
-
-    - set and get application-wide properties;
-
-    - implement the windowing system message or event loop;
-
-    - initiate application processing via App.OnInit;
-
-    - allow default processing of events not handled by other objects
-      in the application."""
-
-    def __init__(self):
-        """Create a PyApp instance."""
-        pass
-
-    def Dispatch(self):
-        """Dispatches the next event in the windowing system event
-        queue.
-
-        This can be used for programming event loops."""
-        pass
-
-    def ExitMainLoop(self):
-        """Call this to explicitly exit the main message (event) loop.
-
-        You should normally exit the main loop (and the application)
-        by deleting the top window, which wxPython does automatically."""
-        pass
-
-    def GetAppName(self):
-        """Return the application name."""
-        pass
-
-    def GetAssertMode(self):
-        """Return the current assertion mode."""
-        pass
-
-    def GetAuto3D(self):
-        """Returns True if 3D control mode is on, False otherwise.
-        Windows only."""
-        pass
-
-    def GetClassName(self):
-        """Return the class name of the application."""
-        pass
-
-    def GetExitOnFrameDelete(self):
-        """Returns True if the application will exit when the
-        top-level window is deleted, False otherwise."""
-        pass
-
-    def GetPrintMode(self):
-        """Deprecated."""
-        pass
-
-    def GetTopWindow(self):
-        """Return the top window.
-
-        If the top window hasn't been set using App.SetTopWindow,
-        this method will find the first top-level window (frame or
-        dialog) and return that."""
-        pass
-
-    def GetUseBestVisual(self):
-        """Return True if the application will use the best visual on
-        systems that support different visuals, False otherwise."""
-        pass
-
-    def GetVendorName(self):
-        """Return the application's vendor name."""
-        pass
-
-    def Initialized(self):
-        """Return True if the application has been initialized
-        (i.e. if App.OnInit has returned successfully). This can be
-        useful for error message routines to determine which method of
-        output is best for the current state of the program (some
-        windowing systems may not like dialogs to pop up before the
-        main loop has been entered)."""
-        pass
-
-    def MainLoop(self):
-        """Called by wxWindows on creation of the application.
-        Override this if you wish to provide your own
-        (environment-dependent) main loop.
-
-        Return 0 under X, and the wParam of the WM_QUIT message under
-        Windows."""
-        pass
-
-    def OnAssert(self, file, line, cond, msg):
-        """Called when an assert failure occurs, i.e. the condition
-        specified in ASSERT macro evaluated to FALSE. It is only
-        called in debug mode (when __WXDEBUG__ is defined) as asserts
-        are not left in the release code at all.
-
-        The base class version show the default assert failure dialog
-        box proposing to the user to stop the program, continue or
-        ignore all subsequent asserts.
-
-        file is the name of the source file where the assert occured
-
-        line is the line number in this file where the assert occured
-
-        cond is the condition of the failed assert in string form
-
-        msg is the message specified as argument to ASSERT_MSG or
-        FAIL_MSG, will be NULL if just ASSERT or FAIL was used"""
-        pass
-
-    def OnExit(self):
-        """Provide this member function for any processing which needs
-        to be done as the application is about to exit.  OnExit is
-        called after destroying all application windows and controls,
-        but before wxWindows cleanup."""
-        pass
-
-    def OnInit(self):
-        """This must be provided by the application, and will usually
-        create the application's main window, optionally calling
-        App.SetTopWindow.
-
-        Return True to continue processing, False to exit the
-        application."""
-        pass
-
-    def OnInitGui(self):
-        """Called just after the platform's GUI has been initialized,
-        but before the App.OnInit() gets called. Rarely needed in
-        practice. Unlike App.OnInit(), does not need to return
-        True/False."""
-        pass
-    
-    def Pending(self):
-        """Return True if unprocessed events are in the window system
-        event queue."""
-        pass
-
-    def ProcessIdle(self):
-        """Sends the EVT_IDLE event and is called inside the MainLoop.
-        
-        You only need this if you implement your own main loop."""
-        pass
-
-    def SetAppName(self, name):
-        """Set the name of the application."""
-        pass
-
-    def SetAssertMode(self, mode):
-        """Lets you control how C++ assertions are processed.
-
-        Valid modes are: PYAPP_ASSERT_SUPPRESS,
-        PYAPP_ASSERT_EXCEPTION, and PYAPP_ASSERT_DIALOG.  Using
-        _SUPPRESS will give you behavior like the old final builds and
-        the assert will be ignored, _EXCEPTION is the new default
-        described above, and _DIALOG is like the default in 2.3.3.1
-        and prior hybrid builds.  You can also combine _EXCEPTION and
-        _DIALOG if you wish, although I don't know why you would."""
-        pass
-
-    def SetAuto3D(self, auto3D):
-        """Switches automatic 3D controls on or off.  Windows only.
-
-        If auto3D is True, all controls will be created with 3D
-        appearances unless overridden for a control or dialog.  The
-        default is True."""
-        pass
-
-    def SetClassName(self, name):
-        """Set the class name of the application."""
-        pass
-
-    def SetExitOnFrameDelete(self, flag):
-        """If flag is True (the default), the application will exit
-        when the top-level frame is deleted.  If False, the
-        application will continue to run."""
-        pass
-
-    def SetPrintMode(self, mode):
-        """Deprecated."""
-        pass
-
-    def SetTopWindow(self, window):
-        """Set the 'top' window.
-
-        You can call this from within App.OnInit to let wxWindows
-        know which is the main window.  You don't have to set the top
-        window; it is only a convenience so that (for example) certain
-        dialogs without parents can use a specific window as the top
-        window.  If no top window is specified by the application,
-        wxWindows just uses the first frame or dialog in its top-level
-        window list, when it needs to use the top window."""
-        pass
-
-    def SetUseBestVisual(self, flag):
-        """Allows the programmer to specify whether the application
-        will use the best visual on systems that support several
-        visual on the same display.  This is typically the case under
-        Solaris and IRIX, where the default visual is only 8-bit
-        whereas certain applications are supposed to run in TrueColour
-        mode.
-
-        Note that this function has to be called in the constructor of
-        the App instance and won't have any effect when called later
-        on.
-
-        This function currently only has effect under GTK."""
-        pass
-
-    def SetVendorName(self, name):
-        """Sets the name of application's vendor.  The name will be
-        used in registry access."""
-        pass
-
-    def Yield(self, onlyIfNeeded=False):
-        """Yields control to pending messages in the windowing system.
-        This can be useful, for example, when a time-consuming process
-        writes to a text window.  Without an occasional yield, the
-        text window will not be updated properly, and on systems with
-        cooperative multitasking, such as Windows 3.1 other processes
-        will not respond.
-
-        Caution should be exercised, however, since yielding may allow
-        the user to perform actions which are not compatible with the
-        current task.  Disabling menu items or whole menus during
-        processing can avoid unwanted reentrance of code: see
-        wx.SafeYield for a better function.
-
-        Calling Yield() recursively is normally an error and an assert
-        failure is raised in debug build if such situation is
-        detected.  However if the the onlyIfNeeded parameter is True,
-        the method will just silently return False instead."""
-        pass
-
-
-from wxPython.wx import wxPlatform
-_redirect = (wxPlatform == '__WXMSW__' or wxPlatform == '__WXMAC__')
-del wxPlatform
-
-
-class App(PyApp):
-    """The main application class.
-
-    Inherit from this class and implement an OnInit method that
-    creates a frame and then calls self.SetTopWindow(frame)."""
-
-    def __init__(self, redirect=_redirect, filename=None, useBestVisual=False):
-        """Create an App instance.
-
-        redirect defaults to True on Windows and Mac. If redirect is
-        True, stdio goes to an output window or a file if filename is
-        not None."""
-        pass
-
-
-del _redirect
-
-
-class PyOnDemandOutputWindow:
-    """Used by App to display stdout and stderr messages if app is
-    created using App(redirect=True).  Mostly useful on Windows or
-    Mac where apps aren't always launched from the command line."""
-    pass
-
-
-class PySimpleApp(App):
-    """Use instead of App for simple apps with a simple frame or
-    dialog, particularly for testing."""
-
-    def __init__(self, flag=0):
-        """Create a PySimpleApp instance.
-
-        flag is the same as App's redirect parameter to redirect stdio."""
-        pass
-
-    def OnInit(self):
-        """Automatically does a wx.InitAllImageHandlers()."""
-        pass
-
-
-class PyWidgetTester(App):
-    """Use instead of App for testing widgets. Provides a frame
-    containing an instance of a widget.
-
-    Create a PyWidgetTester instance with the desired size for the
-    frame, then create the widget and show the frame using SetWidget."""
-
-    def __init__(self, size=(250, 100)):
-        """Create a PyWidgetTester instance, with no stdio redirection.
-
-        size is for the frame to hold the widget."""
-        pass
-
-    def OnInit(self):
-        """Creates a frame that will hold the widget to be tested."""
-        pass
-
-    def SetWidget(self, widgetClass, *args):
-        """Create a widgetClass instance using the supplied args and
-        with a frame as parent, then show the frame."""
-        pass
-
-
-class SingleInstanceChecker:
-    """Allows one to check that only a single instance of a program is
-    running. To do it, you should create an object of this class. As
-    long as this object is alive, calls to IsAnotherRunning() from
-    other processes will return True.
-
-    As the object should have the life span as big as possible, it
-    makes sense to create it either as a global or in App.OnInit()."""
-
-    def __init__(self, name, path=wx.EmptyString):
-        """Create a SingleInstanceChecker instance.
-
-        name should be as unique as possible. It is used as the mutex
-        name under Win32 and the lock file name under Unix.
-        App.GetAppName() and wx.GetUserId() are commonly used.
-
-        path is optional and is ignored under Win32 and used as the
-        directory to create the lock file in under Unix (default is
-        wx.GetHomeDir())."""
-        pass
-
-    def Create(self, name, path=wx.EmptyString):
-        """Create a SingleInstanceChecker instance."""
-        pass
-
-    def IsAnotherRunning(self):
-        """Return True if another copy of this program is already running."""
-        pass

wxPython/wxPython/py/wxd/Base.py

@@ -1,206 +0,0 @@
-"""Decorator classes for documentation and shell scripting.
-"""
-
-__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
-__cvsid__ = "$Id$"
-__revision__ = "$Revision$"[11:-2]
-
-
-# These are not the real wxPython classes. These are Python versions
-# for documentation purposes. They are also used to apply docstrings
-# to the real wxPython classes, which are SWIG-generated wrappers for
-# C-language classes.
-
-
-import Parameters as wx
-
-
-class Object:
-    """Base class for all other wxPython classes."""
-    
-    def __init__(self):
-        """Create a Object instance."""
-        pass
-
-    def Destroy(self):
-        """Destroy the Object instance."""
-        pass
-
-    def GetClassName(self):
-        """Return the name of the class."""
-        pass
-
-
-class EvtHandler(Object):
-    """Base class that can handle events from the windowing system.
-
-    If the handler is part of a chain, the destructor will unlink
-    itself and restore the previous and next handlers so that they
-    point to each other."""
-
-    def __init__(self):
-        """Create a EvtHandler instance."""
-        pass
-
-    def AddPendingEvent(self, event):
-        """Post an event to be processed later.
-
-        event is an Event instance to add to process queue.
-
-        The difference between sending an event (using the
-        ProcessEvent method) and posting it is that in the first case
-        the event is processed before the function returns, while in
-        the second case, the function returns immediately and the
-        event will be processed sometime later (usually during the
-        next event loop iteration).
-
-        A copy of event is made by the function, so the original can
-        be deleted as soon as function returns (it is common that the
-        original is created on the stack).  This requires that the
-        Event::Clone method be implemented by event so that it can
-        be duplicated and stored until it gets processed.
-
-        This is also the method to call for inter-thread
-        communication.  It will post events safely between different
-        threads which means that this method is thread-safe by using
-        critical sections where needed.  In a multi-threaded program,
-        you often need to inform the main GUI thread about the status
-        of other working threads and such notification should be done
-        using this method.
-
-        This method automatically wakes up idle handling if the
-        underlying window system is currently idle and thus would not
-        send any idle events.  (Waking up idle handling is done
-        calling WakeUpIdle.)"""
-        pass
-
-    def Connect(self, id, lastId, eventType, func):
-        """Connects the given function dynamically with the event
-        handler, id and event type.  This is an alternative to the use
-        of static event tables.
-
-        id is the identifier (or first of the identifier range) to be
-        associated with the event handler function.
-
-        lastId is the second part of the identifier range to be
-        associated with the event handler function.
-
-        eventType is the event type to be associated with this event
-        handler.
-
-        function is the event handler function.
-
-        userData is data to be associated with the event table entry."""
-        pass
-
-    def Disconnect(self, id, lastId=-1, eventType=wx.EVT_NULL):
-        """Disconnects the given function dynamically from the event
-        handler, using the specified parameters as search criteria and
-        returning True if a matching function has been found and
-        removed.  This method can only disconnect functions which have
-        been added using the EvtHandler.Connect method. There is no
-        way to disconnect functions connected using the (static) event
-        tables.
-
-        id is the identifier (or first of the identifier range) to be
-        associated with the event handler function.
-
-        lastId is the second part of the identifier range to be
-        associated with the event handler function.
-
-        eventType is the event type to be associated with this event
-        handler.
-
-        function is the event handler function.
-
-        userData is data to be associated with the event table entry."""
-        pass
-
-    def GetEvtHandlerEnabled(self):
-        """Return True if the event handler is enabled, False
-        otherwise."""
-        pass
-
-    def GetNextHandler(self):
-        """Return the next handler in the chain."""
-        pass
-
-    def GetPreviousHandler(self):
-        """Return the previous handler in the chain."""
-        pass
-
-    def ProcessEvent(self, event):
-        """Processes an event, searching event tables and calling zero
-        or more suitable event handler function(s).  Return True if a
-        suitable event handler function was found and executed, and
-        the function did not call Event.Skip().
-
-        event is an Event to process.
-
-        Normally, your application would not call this function: it is
-        called in the wxPython implementation to dispatch incoming
-        user interface events to the framework (and application).
-
-        However, you might need to call it if implementing new
-        functionality (such as a new control) where you define new
-        event types, as opposed to allowing the user to override
-        virtual functions.
-
-        An instance where you might actually override the ProcessEvent
-        function is where you want to direct event processing to event
-        handlers not normally noticed by wxWindows.  For example, in
-        the document/view architecture, documents and views are
-        potential event handlers.  When an event reaches a frame,
-        ProcessEvent will need to be called on the associated document
-        and view in case event handler functions are associated with
-        these objects.  The property classes library (Property) also
-        overrides ProcessEvent for similar reasons.
-
-        The normal order of event table searching is as follows:
-
-        1. If the object is disabled (via a call to
-        EvtHandler.SetEvtHandlerEnabled) the function skips to step
-        (6).
-
-        2. If the object is a Window, ProcessEvent is recursively
-        called on the window's Validator.  If this returns TRUE, the
-        function exits.
-
-        3. SearchEventTable is called for this event handler.  If this
-        fails, the base class table is tried, and so on until no more
-        tables exist or an appropriate function was found, in which
-        case the function exits.
-
-        4. The search is applied down the entire chain of event
-        handlers (usually the chain has a length of one).  If this
-        succeeds, the function exits.
-
-        5. If the object is a Window and the event is a
-        CommandEvent, ProcessEvent is recursively applied to the
-        parent window's event handler.  If this returns TRUE, the
-        function exits.
-
-        6. Finally, ProcessEvent is called on the App object.
-
-        See also:
-
-        EvtHandler::SearchEventTable"""
-        pass
-
-    def SetEvtHandlerEnabled(self, enabled):
-        """Enable or disable the event handler.
-
-        You can use this function to avoid having to remove the event
-        handler from the chain, for example when implementing a dialog
-        editor and changing from edit to test mode."""
-        pass
-
-    def SetNextHandler(self, handler):
-        """Set the pointer to the next handler."""
-        pass
-
-    def SetPreviousHandler(self, handler):
-        """Set the pointer to the previous handler."""
-        pass
-
-