03647350fc
This commit is huge but there are no non-white-space changes in it. Some files containing third-party sources (src/msw/wince/time.cpp, src/x11/pango*.cpp) were left unchanged. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61724 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
631 lines
16 KiB
C++
631 lines
16 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: src/common/imagtiff.cpp
|
|
// Purpose: wxImage TIFF handler
|
|
// Author: Robert Roebling
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) Robert Roebling
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
// ============================================================================
|
|
// declarations
|
|
// ============================================================================
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// headers
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// For compilers that support precompilation, includes "wx.h".
|
|
#include "wx/wxprec.h"
|
|
|
|
#ifdef __BORLANDC__
|
|
#pragma hdrstop
|
|
#endif
|
|
|
|
#if wxUSE_IMAGE && wxUSE_LIBTIFF
|
|
|
|
#include "wx/imagtiff.h"
|
|
|
|
#ifndef WX_PRECOMP
|
|
#include "wx/log.h"
|
|
#include "wx/app.h"
|
|
#include "wx/intl.h"
|
|
#include "wx/bitmap.h"
|
|
#include "wx/module.h"
|
|
#include "wx/wxcrtvararg.h"
|
|
#endif
|
|
|
|
extern "C"
|
|
{
|
|
#ifdef __DMC__
|
|
#include "tif_config.h"
|
|
#endif
|
|
#include "tiff.h"
|
|
#include "tiffio.h"
|
|
}
|
|
#include "wx/filefn.h"
|
|
#include "wx/wfstream.h"
|
|
|
|
#ifndef TIFFLINKAGEMODE
|
|
#if defined(__WATCOMC__) && defined(__WXMGL__)
|
|
#define TIFFLINKAGEMODE cdecl
|
|
#else
|
|
#define TIFFLINKAGEMODE LINKAGEMODE
|
|
#endif
|
|
#endif
|
|
|
|
// ============================================================================
|
|
// implementation
|
|
// ============================================================================
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// TIFF library error/warning handlers
|
|
// ----------------------------------------------------------------------------
|
|
|
|
static wxString
|
|
FormatTiffMessage(const char *module, const char *fmt, va_list ap)
|
|
{
|
|
char buf[512];
|
|
if ( wxCRT_VsnprintfA(buf, WXSIZEOF(buf), fmt, ap) <= 0 )
|
|
{
|
|
// this isn't supposed to happen, but if it does, it's better
|
|
// than nothing
|
|
strcpy(buf, "Incorrectly formatted TIFF message");
|
|
}
|
|
buf[WXSIZEOF(buf)-1] = 0; // make sure it is always NULL-terminated
|
|
|
|
wxString msg(buf);
|
|
if ( module )
|
|
msg += wxString::Format(_(" (in module \"%s\")"), module);
|
|
|
|
return msg;
|
|
}
|
|
|
|
extern "C"
|
|
{
|
|
|
|
static void
|
|
TIFFwxWarningHandler(const char* module, const char *fmt, va_list ap)
|
|
{
|
|
wxLogWarning("%s", FormatTiffMessage(module, fmt, ap));
|
|
}
|
|
|
|
static void
|
|
TIFFwxErrorHandler(const char* module, const char *fmt, va_list ap)
|
|
{
|
|
wxLogError("%s", FormatTiffMessage(module, fmt, ap));
|
|
}
|
|
|
|
} // extern "C"
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxTIFFHandler
|
|
//-----------------------------------------------------------------------------
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxTIFFHandler,wxImageHandler)
|
|
|
|
wxTIFFHandler::wxTIFFHandler()
|
|
{
|
|
m_name = wxT("TIFF file");
|
|
m_extension = wxT("tif");
|
|
m_altExtensions.Add(wxT("tiff"));
|
|
m_type = wxBITMAP_TYPE_TIF;
|
|
m_mime = wxT("image/tiff");
|
|
TIFFSetWarningHandler((TIFFErrorHandler) TIFFwxWarningHandler);
|
|
TIFFSetErrorHandler((TIFFErrorHandler) TIFFwxErrorHandler);
|
|
}
|
|
|
|
#if wxUSE_STREAMS
|
|
|
|
// helper to translate our, possibly 64 bit, wxFileOffset to TIFF, always 32
|
|
// bit, toff_t
|
|
static toff_t wxFileOffsetToTIFF(wxFileOffset ofs)
|
|
{
|
|
if ( ofs == wxInvalidOffset )
|
|
return (toff_t)-1;
|
|
|
|
toff_t tofs = wx_truncate_cast(toff_t, ofs);
|
|
wxCHECK_MSG( (wxFileOffset)tofs == ofs, (toff_t)-1,
|
|
wxT("TIFF library doesn't support large files") );
|
|
|
|
return tofs;
|
|
}
|
|
|
|
// another helper to convert standard seek mode to our
|
|
static wxSeekMode wxSeekModeFromTIFF(int whence)
|
|
{
|
|
switch ( whence )
|
|
{
|
|
case SEEK_SET:
|
|
return wxFromStart;
|
|
|
|
case SEEK_CUR:
|
|
return wxFromCurrent;
|
|
|
|
case SEEK_END:
|
|
return wxFromEnd;
|
|
|
|
default:
|
|
return wxFromCurrent;
|
|
}
|
|
}
|
|
|
|
extern "C"
|
|
{
|
|
|
|
tsize_t TIFFLINKAGEMODE
|
|
wxTIFFNullProc(thandle_t WXUNUSED(handle),
|
|
tdata_t WXUNUSED(buf),
|
|
tsize_t WXUNUSED(size))
|
|
{
|
|
return (tsize_t) -1;
|
|
}
|
|
|
|
tsize_t TIFFLINKAGEMODE
|
|
wxTIFFReadProc(thandle_t handle, tdata_t buf, tsize_t size)
|
|
{
|
|
wxInputStream *stream = (wxInputStream*) handle;
|
|
stream->Read( (void*) buf, (size_t) size );
|
|
return wx_truncate_cast(tsize_t, stream->LastRead());
|
|
}
|
|
|
|
tsize_t TIFFLINKAGEMODE
|
|
wxTIFFWriteProc(thandle_t handle, tdata_t buf, tsize_t size)
|
|
{
|
|
wxOutputStream *stream = (wxOutputStream*) handle;
|
|
stream->Write( (void*) buf, (size_t) size );
|
|
return wx_truncate_cast(tsize_t, stream->LastWrite());
|
|
}
|
|
|
|
toff_t TIFFLINKAGEMODE
|
|
wxTIFFSeekIProc(thandle_t handle, toff_t off, int whence)
|
|
{
|
|
wxInputStream *stream = (wxInputStream*) handle;
|
|
|
|
return wxFileOffsetToTIFF(stream->SeekI((wxFileOffset)off,
|
|
wxSeekModeFromTIFF(whence)));
|
|
}
|
|
|
|
toff_t TIFFLINKAGEMODE
|
|
wxTIFFSeekOProc(thandle_t handle, toff_t off, int whence)
|
|
{
|
|
wxOutputStream *stream = (wxOutputStream*) handle;
|
|
|
|
return wxFileOffsetToTIFF(stream->SeekO((wxFileOffset)off,
|
|
wxSeekModeFromTIFF(whence)));
|
|
}
|
|
|
|
int TIFFLINKAGEMODE
|
|
wxTIFFCloseIProc(thandle_t WXUNUSED(handle))
|
|
{
|
|
// there is no need to close the input stream
|
|
return 0;
|
|
}
|
|
|
|
int TIFFLINKAGEMODE
|
|
wxTIFFCloseOProc(thandle_t handle)
|
|
{
|
|
wxOutputStream *stream = (wxOutputStream*) handle;
|
|
|
|
return stream->Close() ? 0 : -1;
|
|
}
|
|
|
|
toff_t TIFFLINKAGEMODE
|
|
wxTIFFSizeProc(thandle_t handle)
|
|
{
|
|
wxStreamBase *stream = (wxStreamBase*) handle;
|
|
return (toff_t) stream->GetSize();
|
|
}
|
|
|
|
int TIFFLINKAGEMODE
|
|
wxTIFFMapProc(thandle_t WXUNUSED(handle),
|
|
tdata_t* WXUNUSED(pbase),
|
|
toff_t* WXUNUSED(psize))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void TIFFLINKAGEMODE
|
|
wxTIFFUnmapProc(thandle_t WXUNUSED(handle),
|
|
tdata_t WXUNUSED(base),
|
|
toff_t WXUNUSED(size))
|
|
{
|
|
}
|
|
|
|
} // extern "C"
|
|
|
|
TIFF*
|
|
TIFFwxOpen(wxInputStream &stream, const char* name, const char* mode)
|
|
{
|
|
TIFF* tif = TIFFClientOpen(name, mode,
|
|
(thandle_t) &stream,
|
|
wxTIFFReadProc, wxTIFFNullProc,
|
|
wxTIFFSeekIProc, wxTIFFCloseIProc, wxTIFFSizeProc,
|
|
wxTIFFMapProc, wxTIFFUnmapProc);
|
|
|
|
return tif;
|
|
}
|
|
|
|
TIFF*
|
|
TIFFwxOpen(wxOutputStream &stream, const char* name, const char* mode)
|
|
{
|
|
TIFF* tif = TIFFClientOpen(name, mode,
|
|
(thandle_t) &stream,
|
|
wxTIFFNullProc, wxTIFFWriteProc,
|
|
wxTIFFSeekOProc, wxTIFFCloseOProc, wxTIFFSizeProc,
|
|
wxTIFFMapProc, wxTIFFUnmapProc);
|
|
|
|
return tif;
|
|
}
|
|
|
|
bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbose, int index )
|
|
{
|
|
if (index == -1)
|
|
index = 0;
|
|
|
|
image->Destroy();
|
|
|
|
TIFF *tif = TIFFwxOpen( stream, "image", "r" );
|
|
|
|
if (!tif)
|
|
{
|
|
if (verbose)
|
|
{
|
|
wxLogError( _("TIFF: Error loading image.") );
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
if (!TIFFSetDirectory( tif, (tdir_t)index ))
|
|
{
|
|
if (verbose)
|
|
{
|
|
wxLogError( _("Invalid TIFF image index.") );
|
|
}
|
|
|
|
TIFFClose( tif );
|
|
|
|
return false;
|
|
}
|
|
|
|
uint32 w, h;
|
|
uint32 *raster;
|
|
|
|
TIFFGetField( tif, TIFFTAG_IMAGEWIDTH, &w );
|
|
TIFFGetField( tif, TIFFTAG_IMAGELENGTH, &h );
|
|
|
|
uint16 extraSamples;
|
|
uint16* samplesInfo;
|
|
TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES,
|
|
&extraSamples, &samplesInfo);
|
|
const bool hasAlpha = (extraSamples == 1 &&
|
|
(samplesInfo[0] == EXTRASAMPLE_ASSOCALPHA ||
|
|
samplesInfo[0] == EXTRASAMPLE_UNASSALPHA));
|
|
|
|
// guard against integer overflow during multiplication which could result
|
|
// in allocating a too small buffer and then overflowing it
|
|
const double bytesNeeded = (double)w * (double)h * sizeof(uint32);
|
|
if ( bytesNeeded >= wxUINT32_MAX )
|
|
{
|
|
if ( verbose )
|
|
{
|
|
wxLogError( _("TIFF: Image size is abnormally big.") );
|
|
}
|
|
|
|
TIFFClose(tif);
|
|
|
|
return false;
|
|
}
|
|
|
|
raster = (uint32*) _TIFFmalloc( (uint32)bytesNeeded );
|
|
|
|
if (!raster)
|
|
{
|
|
if (verbose)
|
|
{
|
|
wxLogError( _("TIFF: Couldn't allocate memory.") );
|
|
}
|
|
|
|
TIFFClose( tif );
|
|
|
|
return false;
|
|
}
|
|
|
|
image->Create( (int)w, (int)h );
|
|
if (!image->Ok())
|
|
{
|
|
if (verbose)
|
|
{
|
|
wxLogError( _("TIFF: Couldn't allocate memory.") );
|
|
}
|
|
|
|
_TIFFfree( raster );
|
|
TIFFClose( tif );
|
|
|
|
return false;
|
|
}
|
|
|
|
if ( hasAlpha )
|
|
image->SetAlpha();
|
|
|
|
if (!TIFFReadRGBAImage( tif, w, h, raster, 0 ))
|
|
{
|
|
if (verbose)
|
|
{
|
|
wxLogError( _("TIFF: Error reading image.") );
|
|
}
|
|
|
|
_TIFFfree( raster );
|
|
image->Destroy();
|
|
TIFFClose( tif );
|
|
|
|
return false;
|
|
}
|
|
|
|
unsigned char *ptr = image->GetData();
|
|
ptr += w*3*(h-1);
|
|
|
|
unsigned char *alpha = hasAlpha ? image->GetAlpha() : NULL;
|
|
if ( hasAlpha )
|
|
alpha += w*(h-1);
|
|
|
|
uint32 pos = 0;
|
|
|
|
for (uint32 i = 0; i < h; i++)
|
|
{
|
|
for (uint32 j = 0; j < w; j++)
|
|
{
|
|
*(ptr++) = (unsigned char)TIFFGetR(raster[pos]);
|
|
*(ptr++) = (unsigned char)TIFFGetG(raster[pos]);
|
|
*(ptr++) = (unsigned char)TIFFGetB(raster[pos]);
|
|
if ( hasAlpha )
|
|
*(alpha++) = (unsigned char)TIFFGetA(raster[pos]);
|
|
|
|
pos++;
|
|
}
|
|
|
|
// subtract line we just added plus one line:
|
|
ptr -= 2*w*3;
|
|
if ( hasAlpha )
|
|
alpha -= 2*w;
|
|
}
|
|
|
|
// set the image resolution if it's available
|
|
uint16 tiffRes;
|
|
if ( TIFFGetField(tif, TIFFTAG_RESOLUTIONUNIT, &tiffRes) )
|
|
{
|
|
wxImageResolution res;
|
|
switch ( tiffRes )
|
|
{
|
|
default:
|
|
wxLogWarning(_("Unknown TIFF resolution unit %d ignored"),
|
|
tiffRes);
|
|
// fall through
|
|
|
|
case RESUNIT_NONE:
|
|
res = wxIMAGE_RESOLUTION_NONE;
|
|
break;
|
|
|
|
case RESUNIT_INCH:
|
|
res = wxIMAGE_RESOLUTION_INCHES;
|
|
break;
|
|
|
|
case RESUNIT_CENTIMETER:
|
|
res = wxIMAGE_RESOLUTION_CM;
|
|
break;
|
|
}
|
|
|
|
if ( res != wxIMAGE_RESOLUTION_NONE )
|
|
{
|
|
float xres, yres;
|
|
if ( TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) )
|
|
image->SetOption(wxIMAGE_OPTION_RESOLUTIONX, wxRound(xres));
|
|
|
|
if ( TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) )
|
|
image->SetOption(wxIMAGE_OPTION_RESOLUTIONY, wxRound(yres));
|
|
}
|
|
}
|
|
|
|
|
|
_TIFFfree( raster );
|
|
|
|
TIFFClose( tif );
|
|
|
|
return true;
|
|
}
|
|
|
|
int wxTIFFHandler::DoGetImageCount( wxInputStream& stream )
|
|
{
|
|
TIFF *tif = TIFFwxOpen( stream, "image", "r" );
|
|
|
|
if (!tif)
|
|
return 0;
|
|
|
|
int dircount = 0; // according to the libtiff docs, dircount should be set to 1 here???
|
|
do {
|
|
dircount++;
|
|
} while (TIFFReadDirectory(tif));
|
|
|
|
TIFFClose( tif );
|
|
|
|
// NOTE: this function modifies the current stream position but it's ok
|
|
// (see wxImageHandler::GetImageCount)
|
|
|
|
return dircount;
|
|
}
|
|
|
|
bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbose )
|
|
{
|
|
TIFF *tif = TIFFwxOpen( stream, "image", "w" );
|
|
|
|
if (!tif)
|
|
{
|
|
if (verbose)
|
|
{
|
|
wxLogError( _("TIFF: Error saving image.") );
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
|
|
TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (uint32)image->GetWidth());
|
|
TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (uint32)image->GetHeight());
|
|
TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
|
|
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
|
|
|
|
// save the image resolution if we have it
|
|
int xres, yres;
|
|
const wxImageResolution res = GetResolutionFromOptions(*image, &xres, &yres);
|
|
uint16 tiffRes;
|
|
switch ( res )
|
|
{
|
|
default:
|
|
wxFAIL_MSG( wxT("unknown image resolution units") );
|
|
// fall through
|
|
|
|
case wxIMAGE_RESOLUTION_NONE:
|
|
tiffRes = RESUNIT_NONE;
|
|
break;
|
|
|
|
case wxIMAGE_RESOLUTION_INCHES:
|
|
tiffRes = RESUNIT_INCH;
|
|
break;
|
|
|
|
case wxIMAGE_RESOLUTION_CM:
|
|
tiffRes = RESUNIT_CENTIMETER;
|
|
break;
|
|
}
|
|
|
|
if ( tiffRes != RESUNIT_NONE )
|
|
{
|
|
TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, tiffRes);
|
|
TIFFSetField(tif, TIFFTAG_XRESOLUTION, (float)xres);
|
|
TIFFSetField(tif, TIFFTAG_YRESOLUTION, (float)yres);
|
|
}
|
|
|
|
|
|
int spp = image->GetOptionInt(wxIMAGE_OPTION_SAMPLESPERPIXEL);
|
|
if ( !spp )
|
|
spp = 3;
|
|
|
|
int bpp = image->GetOptionInt(wxIMAGE_OPTION_BITSPERSAMPLE);
|
|
if ( !bpp )
|
|
bpp = 8;
|
|
|
|
int compression = image->GetOptionInt(wxIMAGE_OPTION_COMPRESSION);
|
|
if ( !compression )
|
|
{
|
|
// we can't use COMPRESSION_LZW because current version of libtiff
|
|
// doesn't implement it ("no longer implemented due to Unisys patent
|
|
// enforcement") and other compression methods are lossy so we
|
|
// shouldn't use them by default -- and the only remaining one is none
|
|
compression = COMPRESSION_NONE;
|
|
}
|
|
|
|
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, spp);
|
|
TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bpp);
|
|
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, spp*bpp == 1 ? PHOTOMETRIC_MINISBLACK
|
|
: PHOTOMETRIC_RGB);
|
|
TIFFSetField(tif, TIFFTAG_COMPRESSION, compression);
|
|
|
|
// scanlinesize if determined by spp and bpp
|
|
tsize_t linebytes = (tsize_t)image->GetWidth() * spp * bpp / 8;
|
|
|
|
if ( (image->GetWidth() % 8 > 0) && (spp * bpp < 8) )
|
|
linebytes+=1;
|
|
|
|
unsigned char *buf;
|
|
|
|
if (TIFFScanlineSize(tif) > linebytes || (spp * bpp < 24))
|
|
{
|
|
buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(tif));
|
|
if (!buf)
|
|
{
|
|
if (verbose)
|
|
{
|
|
wxLogError( _("TIFF: Couldn't allocate memory.") );
|
|
}
|
|
|
|
TIFFClose( tif );
|
|
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
buf = NULL;
|
|
}
|
|
|
|
TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP,TIFFDefaultStripSize(tif, (uint32) -1));
|
|
|
|
unsigned char *ptr = image->GetData();
|
|
for ( int row = 0; row < image->GetHeight(); row++ )
|
|
{
|
|
if ( buf )
|
|
{
|
|
if ( spp * bpp > 1 )
|
|
{
|
|
// color image
|
|
memcpy(buf, ptr, image->GetWidth());
|
|
}
|
|
else // black and white image
|
|
{
|
|
for ( int column = 0; column < linebytes; column++ )
|
|
{
|
|
uint8 reverse = 0;
|
|
for ( int bp = 0; bp < 8; bp++ )
|
|
{
|
|
if ( ptr[column*24 + bp*3] > 0 )
|
|
{
|
|
// check only red as this is sufficient
|
|
reverse = (uint8)(reverse | 128 >> bp);
|
|
}
|
|
}
|
|
|
|
buf[column] = reverse;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( TIFFWriteScanline(tif, buf ? buf : ptr, (uint32)row, 0) < 0 )
|
|
{
|
|
if (verbose)
|
|
{
|
|
wxLogError( _("TIFF: Error writing image.") );
|
|
}
|
|
|
|
TIFFClose( tif );
|
|
if (buf)
|
|
_TIFFfree(buf);
|
|
|
|
return false;
|
|
}
|
|
|
|
ptr += image->GetWidth()*3;
|
|
}
|
|
|
|
(void) TIFFClose(tif);
|
|
|
|
if (buf)
|
|
_TIFFfree(buf);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool wxTIFFHandler::DoCanRead( wxInputStream& stream )
|
|
{
|
|
unsigned char hdr[2];
|
|
|
|
if ( !stream.Read(&hdr[0], WXSIZEOF(hdr)) ) // it's ok to modify the stream position here
|
|
return false;
|
|
|
|
return (hdr[0] == 'I' && hdr[1] == 'I') ||
|
|
(hdr[0] == 'M' && hdr[1] == 'M');
|
|
}
|
|
|
|
#endif // wxUSE_STREAMS
|
|
|
|
#endif // wxUSE_LIBTIFF
|