1461 lines
42 KiB
C++
1461 lines
42 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/image/image.cpp
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// Purpose: Test wxImage
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// Author: Francesco Montorsi
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// Created: 2009-05-31
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// Copyright: (c) 2009 Francesco Montorsi
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "testprec.h"
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#if wxUSE_IMAGE
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#endif // WX_PRECOMP
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#include "wx/anidecod.h" // wxImageArray
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#include "wx/palette.h"
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#include "wx/url.h"
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#include "wx/log.h"
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#include "wx/mstream.h"
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#include "wx/zstream.h"
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#include "wx/wfstream.h"
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#include "testimage.h"
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struct testData {
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const char* file;
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wxBitmapType type;
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unsigned bitDepth;
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} g_testfiles[] =
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{
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{ "horse.ico", wxBITMAP_TYPE_ICO, 4 },
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{ "horse.xpm", wxBITMAP_TYPE_XPM, 8 },
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{ "horse.png", wxBITMAP_TYPE_PNG, 24 },
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{ "horse.ani", wxBITMAP_TYPE_ANI, 24 },
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{ "horse.bmp", wxBITMAP_TYPE_BMP, 8 },
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{ "horse.cur", wxBITMAP_TYPE_CUR, 1 },
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{ "horse.gif", wxBITMAP_TYPE_GIF, 8 },
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{ "horse.jpg", wxBITMAP_TYPE_JPEG, 24 },
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{ "horse.pcx", wxBITMAP_TYPE_PCX, 8 },
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{ "horse.pnm", wxBITMAP_TYPE_PNM, 24 },
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{ "horse.tga", wxBITMAP_TYPE_TGA, 8 },
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{ "horse.tif", wxBITMAP_TYPE_TIFF, 8 }
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};
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// ----------------------------------------------------------------------------
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// test class
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// ----------------------------------------------------------------------------
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class ImageTestCase : public CppUnit::TestCase
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{
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public:
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ImageTestCase();
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~ImageTestCase();
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private:
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CPPUNIT_TEST_SUITE( ImageTestCase );
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CPPUNIT_TEST( LoadFromSocketStream );
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CPPUNIT_TEST( LoadFromZipStream );
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CPPUNIT_TEST( LoadFromFile );
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CPPUNIT_TEST( SizeImage );
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CPPUNIT_TEST( CompareLoadedImage );
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CPPUNIT_TEST( CompareSavedImage );
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CPPUNIT_TEST( SavePNG );
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#if wxUSE_LIBTIFF
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CPPUNIT_TEST( SaveTIFF );
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#endif // wxUSE_LIBTIFF
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CPPUNIT_TEST( ReadCorruptedTGA );
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#if wxUSE_GIF
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CPPUNIT_TEST( SaveAnimatedGIF );
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CPPUNIT_TEST( GIFComment );
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#endif // wxUSE_GIF
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CPPUNIT_TEST( DibPadding );
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CPPUNIT_TEST( BMPFlippingAndRLECompression );
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CPPUNIT_TEST( ScaleCompare );
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CPPUNIT_TEST_SUITE_END();
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void LoadFromSocketStream();
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void LoadFromZipStream();
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void LoadFromFile();
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void SizeImage();
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void CompareLoadedImage();
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void CompareSavedImage();
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void SavePNG();
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#if wxUSE_LIBTIFF
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void SaveTIFF();
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#endif // wxUSE_LIBTIFF
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void ReadCorruptedTGA();
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#if wxUSE_GIF
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void SaveAnimatedGIF();
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void GIFComment();
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#endif // wxUSE_GIF
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void DibPadding();
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void BMPFlippingAndRLECompression();
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void ScaleCompare();
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wxDECLARE_NO_COPY_CLASS(ImageTestCase);
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};
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CPPUNIT_TEST_SUITE_REGISTRATION( ImageTestCase );
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( ImageTestCase, "ImageTestCase" );
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ImageTestCase::ImageTestCase()
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{
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wxSocketBase::Initialize();
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// the formats we're going to test:
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wxImage::AddHandler(new wxICOHandler);
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wxImage::AddHandler(new wxXPMHandler);
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wxImage::AddHandler(new wxPNGHandler);
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wxImage::AddHandler(new wxANIHandler);
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wxImage::AddHandler(new wxBMPHandler);
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wxImage::AddHandler(new wxCURHandler);
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#if wxUSE_GIF
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wxImage::AddHandler(new wxGIFHandler);
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#endif // wxUSE_GIF
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wxImage::AddHandler(new wxJPEGHandler);
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wxImage::AddHandler(new wxPCXHandler);
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wxImage::AddHandler(new wxPNMHandler);
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wxImage::AddHandler(new wxTGAHandler);
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#if wxUSE_LIBTIFF
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wxImage::AddHandler(new wxTIFFHandler);
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#endif // wxUSE_LIBTIFF
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}
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ImageTestCase::~ImageTestCase()
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{
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wxSocketBase::Shutdown();
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}
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void ImageTestCase::LoadFromFile()
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{
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wxImage img;
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for (unsigned int i=0; i<WXSIZEOF(g_testfiles); i++)
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CPPUNIT_ASSERT(img.LoadFile(g_testfiles[i].file));
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}
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void ImageTestCase::LoadFromSocketStream()
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{
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if (!IsNetworkAvailable()) // implemented in test.cpp
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{
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wxLogWarning("No network connectivity; skipping the "
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"ImageTestCase::LoadFromSocketStream test unit.");
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return;
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}
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struct {
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const char* url;
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wxBitmapType type;
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} testData[] =
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{
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{ "http://www.wxwidgets.org/assets/img/header-logo.png", wxBITMAP_TYPE_PNG },
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{ "http://www.wxwidgets.org/assets/ico/favicon-1.ico", wxBITMAP_TYPE_ICO }
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};
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for (unsigned int i=0; i<WXSIZEOF(testData); i++)
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{
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wxURL url(testData[i].url);
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WX_ASSERT_EQUAL_MESSAGE
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(
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("Constructing URL \"%s\" failed.", testData[i].url),
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wxURL_NOERR,
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url.GetError()
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);
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wxInputStream *in_stream = url.GetInputStream();
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WX_ASSERT_MESSAGE
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(
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("Opening URL \"%s\" failed.", testData[i].url),
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in_stream && in_stream->IsOk()
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);
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wxImage img;
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// NOTE: it's important to inform wxImage about the type of the image being
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// loaded otherwise it will try to autodetect the format, but that
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// requires a seekable stream!
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WX_ASSERT_MESSAGE
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(
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("Loading image from \"%s\" failed.", testData[i].url),
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img.LoadFile(*in_stream, testData[i].type)
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);
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delete in_stream;
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}
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}
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void ImageTestCase::LoadFromZipStream()
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{
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for (unsigned int i=0; i<WXSIZEOF(g_testfiles); i++)
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{
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switch (g_testfiles[i].type)
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{
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case wxBITMAP_TYPE_XPM:
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case wxBITMAP_TYPE_GIF:
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case wxBITMAP_TYPE_PCX:
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case wxBITMAP_TYPE_TGA:
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case wxBITMAP_TYPE_TIFF:
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continue; // skip testing those wxImageHandlers which cannot
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// load data from non-seekable streams
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default:
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; // proceed
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}
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// compress the test file on the fly:
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wxMemoryOutputStream memOut;
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{
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wxFileInputStream file(g_testfiles[i].file);
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CPPUNIT_ASSERT(file.IsOk());
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wxZlibOutputStream compressFilter(memOut, 5, wxZLIB_GZIP);
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CPPUNIT_ASSERT(compressFilter.IsOk());
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file.Read(compressFilter);
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CPPUNIT_ASSERT(file.GetLastError() == wxSTREAM_EOF);
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}
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// now fetch the compressed memory to wxImage, decompressing it on the fly; this
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// allows us to test loading images from non-seekable streams other than socket streams
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wxMemoryInputStream memIn(memOut);
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CPPUNIT_ASSERT(memIn.IsOk());
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wxZlibInputStream decompressFilter(memIn, wxZLIB_GZIP);
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CPPUNIT_ASSERT(decompressFilter.IsOk());
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wxImage img;
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// NOTE: it's important to inform wxImage about the type of the image being
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// loaded otherwise it will try to autodetect the format, but that
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// requires a seekable stream!
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WX_ASSERT_MESSAGE(("Could not load file type '%d' after it was zipped", g_testfiles[i].type),
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img.LoadFile(decompressFilter, g_testfiles[i].type));
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}
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}
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void ImageTestCase::SizeImage()
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{
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// Test the wxImage::Size() function which takes a rectangle from source and
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// places it in a new image at a given position. This test checks, if the
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// correct areas are chosen, and clipping is done correctly.
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// our test image:
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static const char * xpm_orig[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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" .....",
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" ++++@@@@.",
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" +... @.",
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" +.@@++ @.",
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" +.@ .+ @.",
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".@ +. @.+ ",
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".@ ++@@.+ ",
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".@ ...+ ",
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".@@@@++++ ",
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"..... "
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};
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// the expected results for all tests:
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static const char * xpm_l_t[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"... @.BB",
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".@@++ @.BB",
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".@ .+ @.BB",
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" +. @.+ BB",
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" ++@@.+ BB",
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" ...+ BB",
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"@@@++++ BB",
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"... BB",
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"BBBBBBBBBB",
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"BBBBBBBBBB"
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};
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static const char * xpm_t[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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" +... @.",
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" +.@@++ @.",
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" +.@ .+ @.",
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".@ +. @.+ ",
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".@ ++@@.+ ",
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".@ ...+ ",
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".@@@@++++ ",
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"..... ",
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"BBBBBBBBBB",
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"BBBBBBBBBB"
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};
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static const char * xpm_r_t[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BB +... ",
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"BB +.@@++ ",
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"BB +.@ .+ ",
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"BB.@ +. @.",
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"BB.@ ++@@.",
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"BB.@ ...",
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"BB.@@@@+++",
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"BB..... ",
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"BBBBBBBBBB",
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"BBBBBBBBBB"
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};
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static const char * xpm_l[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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" .....BB",
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"+++@@@@.BB",
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"... @.BB",
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".@@++ @.BB",
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".@ .+ @.BB",
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" +. @.+ BB",
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" ++@@.+ BB",
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" ...+ BB",
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"@@@++++ BB",
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"... BB"
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};
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static const char * xpm_r[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BB ...",
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"BB ++++@@@",
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"BB +... ",
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"BB +.@@++ ",
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"BB +.@ .+ ",
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"BB.@ +. @.",
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"BB.@ ++@@.",
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"BB.@ ...",
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"BB.@@@@+++",
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"BB..... "
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};
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static const char * xpm_l_b[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BBBBBBBBBB",
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"BBBBBBBBBB",
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" .....BB",
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"+++@@@@.BB",
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"... @.BB",
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".@@++ @.BB",
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".@ .+ @.BB",
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" +. @.+ BB",
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" ++@@.+ BB",
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" ...+ BB"
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};
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static const char * xpm_b[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BBBBBBBBBB",
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"BBBBBBBBBB",
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" .....",
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" ++++@@@@.",
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" +... @.",
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" +.@@++ @.",
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" +.@ .+ @.",
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".@ +. @.+ ",
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".@ ++@@.+ ",
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".@ ...+ "
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};
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static const char * xpm_r_b[] = {
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"10 10 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BBBBBBBBBB",
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"BBBBBBBBBB",
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"BB ...",
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"BB ++++@@@",
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"BB +... ",
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"BB +.@@++ ",
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"BB +.@ .+ ",
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"BB.@ +. @.",
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"BB.@ ++@@.",
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"BB.@ ..."
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};
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static const char * xpm_sm[] = {
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"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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" .....",
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" ++++@@@",
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" +... ",
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" +.@@++ ",
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" +.@ .+ ",
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".@ +. @.",
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".@ ++@@.",
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".@ ..."
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};
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static const char * xpm_gt[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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" .....BB",
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" ++++@@@@.BB",
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" +... @.BB",
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" +.@@++ @.BB",
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" +.@ .+ @.BB",
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".@ +. @.+ BB",
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".@ ++@@.+ BB",
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".@ ...+ BB",
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".@@@@++++ BB",
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"..... BB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB"
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};
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static const char * xpm_gt_l_t[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"... @.BBBB",
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".@@++ @.BBBB",
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".@ .+ @.BBBB",
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" +. @.+ BBBB",
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" ++@@.+ BBBB",
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" ...+ BBBB",
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"@@@++++ BBBB",
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"... BBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB"
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};
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static const char * xpm_gt_l[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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" .....BBBB",
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"+++@@@@.BBBB",
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"... @.BBBB",
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".@@++ @.BBBB",
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".@ .+ @.BBBB",
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" +. @.+ BBBB",
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" ++@@.+ BBBB",
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" ...+ BBBB",
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"@@@++++ BBBB",
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"... BBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB"
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};
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static const char * xpm_gt_l_b[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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" .....BBBB",
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"+++@@@@.BBBB",
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"... @.BBBB",
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".@@++ @.BBBB",
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".@ .+ @.BBBB",
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" +. @.+ BBBB",
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" ++@@.+ BBBB",
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" ...+ BBBB",
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"@@@++++ BBBB",
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"... BBBB"
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};
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static const char * xpm_gt_l_bb[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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" .....BBBB",
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|
"+++@@@@.BBBB",
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"... @.BBBB",
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|
".@@++ @.BBBB",
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".@ .+ @.BBBB",
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" +. @.+ BBBB",
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" ++@@.+ BBBB",
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" ...+ BBBB"
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};
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static const char * xpm_gt_t[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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" +... @.BB",
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" +.@@++ @.BB",
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" +.@ .+ @.BB",
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".@ +. @.+ BB",
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".@ ++@@.+ BB",
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".@ ...+ BB",
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".@@@@++++ BB",
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"..... BB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
|
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"BBBBBBBBBBBB"
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};
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static const char * xpm_gt_b[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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" .....BB",
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" ++++@@@@.BB",
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" +... @.BB",
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" +.@@++ @.BB",
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" +.@ .+ @.BB",
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".@ +. @.+ BB",
|
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".@ ++@@.+ BB",
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".@ ...+ BB",
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".@@@@++++ BB",
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"..... BB"
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};
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static const char * xpm_gt_bb[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
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"BBBBBBBBBBBB",
|
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" .....BB",
|
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" ++++@@@@.BB",
|
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" +... @.BB",
|
|
" +.@@++ @.BB",
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|
" +.@ .+ @.BB",
|
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".@ +. @.+ BB",
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".@ ++@@.+ BB",
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".@ ...+ BB"
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};
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static const char * xpm_gt_r_t[] = {
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"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BB +... @.",
|
|
"BB +.@@++ @.",
|
|
"BB +.@ .+ @.",
|
|
"BB.@ +. @.+ ",
|
|
"BB.@ ++@@.+ ",
|
|
"BB.@ ...+ ",
|
|
"BB.@@@@++++ ",
|
|
"BB..... ",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB"
|
|
};
|
|
static const char * xpm_gt_r[] = {
|
|
"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BB .....",
|
|
"BB ++++@@@@.",
|
|
"BB +... @.",
|
|
"BB +.@@++ @.",
|
|
"BB +.@ .+ @.",
|
|
"BB.@ +. @.+ ",
|
|
"BB.@ ++@@.+ ",
|
|
"BB.@ ...+ ",
|
|
"BB.@@@@++++ ",
|
|
"BB..... ",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB"
|
|
};
|
|
static const char * xpm_gt_r_b[] = {
|
|
"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BB .....",
|
|
"BB ++++@@@@.",
|
|
"BB +... @.",
|
|
"BB +.@@++ @.",
|
|
"BB +.@ .+ @.",
|
|
"BB.@ +. @.+ ",
|
|
"BB.@ ++@@.+ ",
|
|
"BB.@ ...+ ",
|
|
"BB.@@@@++++ ",
|
|
"BB..... "
|
|
};
|
|
static const char * xpm_gt_r_bb[] = {
|
|
"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BB .....",
|
|
"BB ++++@@@@.",
|
|
"BB +... @.",
|
|
"BB +.@@++ @.",
|
|
"BB +.@ .+ @.",
|
|
"BB.@ +. @.+ ",
|
|
"BB.@ ++@@.+ ",
|
|
"BB.@ ...+ "
|
|
};
|
|
static const char * xpm_gt_rr_t[] = {
|
|
"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBB +... ",
|
|
"BBBB +.@@++ ",
|
|
"BBBB +.@ .+ ",
|
|
"BBBB.@ +. @.",
|
|
"BBBB.@ ++@@.",
|
|
"BBBB.@ ...",
|
|
"BBBB.@@@@+++",
|
|
"BBBB..... ",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB"
|
|
};
|
|
static const char * xpm_gt_rr[] = {
|
|
"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBB ...",
|
|
"BBBB ++++@@@",
|
|
"BBBB +... ",
|
|
"BBBB +.@@++ ",
|
|
"BBBB +.@ .+ ",
|
|
"BBBB.@ +. @.",
|
|
"BBBB.@ ++@@.",
|
|
"BBBB.@ ...",
|
|
"BBBB.@@@@+++",
|
|
"BBBB..... ",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB"
|
|
};
|
|
static const char * xpm_gt_rr_b[] = {
|
|
"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBB ...",
|
|
"BBBB ++++@@@",
|
|
"BBBB +... ",
|
|
"BBBB +.@@++ ",
|
|
"BBBB +.@ .+ ",
|
|
"BBBB.@ +. @.",
|
|
"BBBB.@ ++@@.",
|
|
"BBBB.@ ...",
|
|
"BBBB.@@@@+++",
|
|
"BBBB..... "
|
|
};
|
|
static const char * xpm_gt_rr_bb[] = {
|
|
"12 12 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBBBBBBBBBB",
|
|
"BBBB ...",
|
|
"BBBB ++++@@@",
|
|
"BBBB +... ",
|
|
"BBBB +.@@++ ",
|
|
"BBBB +.@ .+ ",
|
|
"BBBB.@ +. @.",
|
|
"BBBB.@ ++@@.",
|
|
"BBBB.@ ..."
|
|
};
|
|
static const char * xpm_sm_ll_tt[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
" .+ @.BB",
|
|
". @.+ BB",
|
|
"+@@.+ BB",
|
|
" ...+ BB",
|
|
"@++++ BB",
|
|
". BB",
|
|
"BBBBBBBB",
|
|
"BBBBBBBB"
|
|
};
|
|
static const char * xpm_sm_ll_t[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
". @.BB",
|
|
"@++ @.BB",
|
|
" .+ @.BB",
|
|
". @.+ BB",
|
|
"+@@.+ BB",
|
|
" ...+ BB",
|
|
"@++++ BB",
|
|
". BB"
|
|
};
|
|
static const char * xpm_sm_ll[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
" .....BB",
|
|
"+@@@@.BB",
|
|
". @.BB",
|
|
"@++ @.BB",
|
|
" .+ @.BB",
|
|
". @.+ BB",
|
|
"+@@.+ BB",
|
|
" ...+ BB"
|
|
};
|
|
static const char * xpm_sm_ll_b[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBBBBBB",
|
|
"BBBBBBBB",
|
|
" .....BB",
|
|
"+@@@@.BB",
|
|
". @.BB",
|
|
"@++ @.BB",
|
|
" .+ @.BB",
|
|
". @.+ BB"
|
|
};
|
|
static const char * xpm_sm_l_tt[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
".@ .+ @.",
|
|
" +. @.+ ",
|
|
" ++@@.+ ",
|
|
" ...+ ",
|
|
"@@@++++ ",
|
|
"... ",
|
|
"BBBBBBBB",
|
|
"BBBBBBBB"
|
|
};
|
|
static const char * xpm_sm_l_t[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"... @.",
|
|
".@@++ @.",
|
|
".@ .+ @.",
|
|
" +. @.+ ",
|
|
" ++@@.+ ",
|
|
" ...+ ",
|
|
"@@@++++ ",
|
|
"... "
|
|
};
|
|
static const char * xpm_sm_l[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
" .....",
|
|
"+++@@@@.",
|
|
"... @.",
|
|
".@@++ @.",
|
|
".@ .+ @.",
|
|
" +. @.+ ",
|
|
" ++@@.+ ",
|
|
" ...+ "
|
|
};
|
|
static const char * xpm_sm_l_b[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBBBBBB",
|
|
"BBBBBBBB",
|
|
" .....",
|
|
"+++@@@@.",
|
|
"... @.",
|
|
".@@++ @.",
|
|
".@ .+ @.",
|
|
" +. @.+ "
|
|
};
|
|
static const char * xpm_sm_tt[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
" +.@ .+ ",
|
|
".@ +. @.",
|
|
".@ ++@@.",
|
|
".@ ...",
|
|
".@@@@+++",
|
|
"..... ",
|
|
"BBBBBBBB",
|
|
"BBBBBBBB"
|
|
};
|
|
static const char * xpm_sm_t[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
" +... ",
|
|
" +.@@++ ",
|
|
" +.@ .+ ",
|
|
".@ +. @.",
|
|
".@ ++@@.",
|
|
".@ ...",
|
|
".@@@@+++",
|
|
"..... "
|
|
};
|
|
static const char * xpm_sm_b[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBBBBBB",
|
|
"BBBBBBBB",
|
|
" ...",
|
|
" ++++@@@",
|
|
" +... ",
|
|
" +.@@++ ",
|
|
" +.@ .+ ",
|
|
".@ +. @."
|
|
};
|
|
static const char * xpm_sm_r_tt[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BB +.@ .",
|
|
"BB.@ +. ",
|
|
"BB.@ ++@",
|
|
"BB.@ .",
|
|
"BB.@@@@+",
|
|
"BB..... ",
|
|
"BBBBBBBB",
|
|
"BBBBBBBB"
|
|
};
|
|
static const char * xpm_sm_r_t[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BB +... ",
|
|
"BB +.@@+",
|
|
"BB +.@ .",
|
|
"BB.@ +. ",
|
|
"BB.@ ++@",
|
|
"BB.@ .",
|
|
"BB.@@@@+",
|
|
"BB..... "
|
|
};
|
|
static const char * xpm_sm_r[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BB .",
|
|
"BB ++++@",
|
|
"BB +... ",
|
|
"BB +.@@+",
|
|
"BB +.@ .",
|
|
"BB.@ +. ",
|
|
"BB.@ ++@",
|
|
"BB.@ ."
|
|
};
|
|
static const char * xpm_sm_r_b[] = {
|
|
"8 8 5 1", "B c Black", " c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
|
|
"BBBBBBBB",
|
|
"BBBBBBBB",
|
|
"BB .",
|
|
"BB ++++@",
|
|
"BB +... ",
|
|
"BB +.@@+",
|
|
"BB +.@ .",
|
|
"BB.@ +. "
|
|
};
|
|
|
|
// this table defines all tests
|
|
struct SizeTestData
|
|
{
|
|
int w, h, dx, dy; // first parameters for Size()
|
|
const char **ref_xpm; // expected result
|
|
} sizeTestData[] =
|
|
{
|
|
{ 10, 10, 0, 0, xpm_orig}, // same size, same position
|
|
{ 12, 12, 0, 0, xpm_gt}, // target larger, same position
|
|
{ 8, 8, 0, 0, xpm_sm}, // target smaller, same position
|
|
{ 10, 10, -2, -2, xpm_l_t}, // same size, move left up
|
|
{ 10, 10, -2, 0, xpm_l}, // same size, move left
|
|
{ 10, 10, -2, 2, xpm_l_b}, // same size, move left down
|
|
{ 10, 10, 0, -2, xpm_t}, // same size, move up
|
|
{ 10, 10, 0, 2, xpm_b}, // same size, move down
|
|
{ 10, 10, 2, -2, xpm_r_t}, // same size, move right up
|
|
{ 10, 10, 2, 0, xpm_r}, // same size, move right
|
|
{ 10, 10, 2, 2, xpm_r_b}, // same size, move right down
|
|
{ 12, 12, -2, -2, xpm_gt_l_t}, // target larger, move left up
|
|
{ 12, 12, -2, 0, xpm_gt_l}, // target larger, move left
|
|
{ 12, 12, -2, 2, xpm_gt_l_b}, // target larger, move left down
|
|
{ 12, 12, -2, 4, xpm_gt_l_bb}, // target larger, move left down
|
|
{ 12, 12, 0, -2, xpm_gt_t}, // target larger, move up
|
|
{ 12, 12, 0, 2, xpm_gt_b}, // target larger, move down
|
|
{ 12, 12, 0, 4, xpm_gt_bb}, // target larger, move down
|
|
{ 12, 12, 2, -2, xpm_gt_r_t}, // target larger, move right up
|
|
{ 12, 12, 2, 0, xpm_gt_r}, // target larger, move right
|
|
{ 12, 12, 2, 2, xpm_gt_r_b}, // target larger, move right down
|
|
{ 12, 12, 2, 4, xpm_gt_r_bb}, // target larger, move right down
|
|
{ 12, 12, 4, -2, xpm_gt_rr_t}, // target larger, move right up
|
|
{ 12, 12, 4, 0, xpm_gt_rr}, // target larger, move right
|
|
{ 12, 12, 4, 2, xpm_gt_rr_b}, // target larger, move right down
|
|
{ 12, 12, 4, 4, xpm_gt_rr_bb}, // target larger, move right down
|
|
{ 8, 8, -4, -4, xpm_sm_ll_tt}, // target smaller, move left up
|
|
{ 8, 8, -4, -2, xpm_sm_ll_t}, // target smaller, move left up
|
|
{ 8, 8, -4, 0, xpm_sm_ll}, // target smaller, move left
|
|
{ 8, 8, -4, 2, xpm_sm_ll_b}, // target smaller, move left down
|
|
{ 8, 8, -2, -4, xpm_sm_l_tt}, // target smaller, move left up
|
|
{ 8, 8, -2, -2, xpm_sm_l_t}, // target smaller, move left up
|
|
{ 8, 8, -2, 0, xpm_sm_l}, // target smaller, move left
|
|
{ 8, 8, -2, 2, xpm_sm_l_b}, // target smaller, move left down
|
|
{ 8, 8, 0, -4, xpm_sm_tt}, // target smaller, move up
|
|
{ 8, 8, 0, -2, xpm_sm_t}, // target smaller, move up
|
|
{ 8, 8, 0, 2, xpm_sm_b}, // target smaller, move down
|
|
{ 8, 8, 2, -4, xpm_sm_r_tt}, // target smaller, move right up
|
|
{ 8, 8, 2, -2, xpm_sm_r_t}, // target smaller, move right up
|
|
{ 8, 8, 2, 0, xpm_sm_r}, // target smaller, move right
|
|
{ 8, 8, 2, 2, xpm_sm_r_b}, // target smaller, move right down
|
|
};
|
|
|
|
const wxImage src_img(xpm_orig);
|
|
for ( unsigned i = 0; i < WXSIZEOF(sizeTestData); i++ )
|
|
{
|
|
SizeTestData& st = sizeTestData[i];
|
|
wxImage
|
|
actual(src_img.Size(wxSize(st.w, st.h), wxPoint(st.dx, st.dy), 0, 0, 0)),
|
|
expected(st.ref_xpm);
|
|
|
|
// to check results with an image viewer uncomment this:
|
|
//actual.SaveFile(wxString::Format("imagetest-%02d-actual.png", i), wxBITMAP_TYPE_PNG);
|
|
//expected.SaveFile(wxString::Format("imagetest-%02d-exp.png", i), wxBITMAP_TYPE_PNG);
|
|
|
|
wxINFO_FMT("Resize test #%u: (%d, %d), (%d, %d)",
|
|
i, st.w, st.h, st.dx, st.dy);
|
|
CHECK_THAT( actual, RGBSameAs(expected) );
|
|
}
|
|
}
|
|
|
|
void ImageTestCase::CompareLoadedImage()
|
|
{
|
|
wxImage expected8("horse.xpm");
|
|
CPPUNIT_ASSERT( expected8.IsOk() );
|
|
|
|
wxImage expected24("horse.png");
|
|
CPPUNIT_ASSERT( expected24.IsOk() );
|
|
|
|
for (size_t i=0; i<WXSIZEOF(g_testfiles); i++)
|
|
{
|
|
if ( !(g_testfiles[i].bitDepth == 8 || g_testfiles[i].bitDepth == 24)
|
|
|| g_testfiles[i].type == wxBITMAP_TYPE_JPEG /*skip lossy JPEG*/)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
wxImage actual(g_testfiles[i].file);
|
|
|
|
if ( actual.GetSize() != expected8.GetSize() )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
|
|
wxINFO_FMT("Compare test '%s' for loading", g_testfiles[i].file);
|
|
CHECK_THAT( actual,
|
|
RGBSameAs(g_testfiles[i].bitDepth == 8 ? expected8
|
|
: expected24) );
|
|
}
|
|
|
|
}
|
|
|
|
enum
|
|
{
|
|
wxIMAGE_HAVE_ALPHA = (1 << 0),
|
|
wxIMAGE_HAVE_PALETTE = (1 << 1)
|
|
};
|
|
|
|
static
|
|
void CompareImage(const wxImageHandler& handler, const wxImage& image,
|
|
int properties = 0, const wxImage *compareTo = NULL)
|
|
{
|
|
wxBitmapType type = handler.GetType();
|
|
|
|
const bool testPalette = (properties & wxIMAGE_HAVE_PALETTE) != 0;
|
|
/*
|
|
This is getting messy and should probably be transformed into a table
|
|
with image format features before it gets hairier.
|
|
*/
|
|
if ( testPalette
|
|
&& ( !(type == wxBITMAP_TYPE_BMP
|
|
|| type == wxBITMAP_TYPE_GIF
|
|
|| type == wxBITMAP_TYPE_ICO
|
|
|| type == wxBITMAP_TYPE_PNG)
|
|
|| type == wxBITMAP_TYPE_XPM) )
|
|
{
|
|
return;
|
|
}
|
|
|
|
const bool testAlpha = (properties & wxIMAGE_HAVE_ALPHA) != 0;
|
|
if (testAlpha
|
|
&& !(type == wxBITMAP_TYPE_PNG || type == wxBITMAP_TYPE_TGA
|
|
|| type == wxBITMAP_TYPE_TIFF) )
|
|
{
|
|
// don't test images with alpha if this handler doesn't support alpha
|
|
return;
|
|
}
|
|
|
|
if (type == wxBITMAP_TYPE_JPEG /* skip lossy JPEG */)
|
|
{
|
|
return;
|
|
}
|
|
|
|
wxMemoryOutputStream memOut;
|
|
if ( !image.SaveFile(memOut, type) )
|
|
{
|
|
// Unfortunately we can't know if the handler just doesn't support
|
|
// saving images, or if it failed to save.
|
|
return;
|
|
}
|
|
|
|
wxMemoryInputStream memIn(memOut);
|
|
CPPUNIT_ASSERT(memIn.IsOk());
|
|
|
|
wxImage actual(memIn);
|
|
CPPUNIT_ASSERT(actual.IsOk());
|
|
|
|
const wxImage *expected = compareTo ? compareTo : ℑ
|
|
|
|
unsigned bitsPerPixel = testPalette ? 8 : (testAlpha ? 32 : 24);
|
|
wxINFO_FMT("Compare test '%s (%d-bit)' for saving",
|
|
handler.GetExtension(), bitsPerPixel);
|
|
CHECK_THAT(actual, RGBSameAs(*expected));
|
|
|
|
#if wxUSE_PALETTE
|
|
CPPUNIT_ASSERT(actual.HasPalette()
|
|
== (testPalette || type == wxBITMAP_TYPE_XPM));
|
|
#endif
|
|
|
|
CPPUNIT_ASSERT( actual.HasAlpha() == testAlpha);
|
|
|
|
if (!testAlpha)
|
|
{
|
|
return;
|
|
}
|
|
|
|
wxINFO_FMT("Compare alpha test '%s' for saving", handler.GetExtension());
|
|
CHECK_THAT(actual, RGBSameAs(*expected));
|
|
}
|
|
|
|
static void SetAlpha(wxImage *image)
|
|
{
|
|
image->SetAlpha();
|
|
|
|
unsigned char *ptr = image->GetAlpha();
|
|
const int width = image->GetWidth();
|
|
const int height = image->GetHeight();
|
|
for (int y = 0; y < height; ++y)
|
|
{
|
|
for (int x = 0; x < width; ++x)
|
|
{
|
|
ptr[y*width + x] = (x*y) & wxIMAGE_ALPHA_OPAQUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ImageTestCase::CompareSavedImage()
|
|
{
|
|
wxImage expected24("horse.png");
|
|
CPPUNIT_ASSERT( expected24.IsOk() );
|
|
CPPUNIT_ASSERT( !expected24.HasAlpha() );
|
|
|
|
wxImage expected8 = expected24.ConvertToGreyscale();
|
|
|
|
#if wxUSE_PALETTE
|
|
unsigned char greys[256];
|
|
for (int i = 0; i < 256; ++i)
|
|
{
|
|
greys[i] = i;
|
|
}
|
|
wxPalette palette(256, greys, greys, greys);
|
|
expected8.SetPalette(palette);
|
|
#endif // #if wxUSE_PALETTE
|
|
|
|
expected8.SetOption(wxIMAGE_OPTION_BMP_FORMAT, wxBMP_8BPP_PALETTE);
|
|
|
|
// Create an image with alpha based on the loaded image
|
|
wxImage expected32(expected24);
|
|
|
|
SetAlpha(&expected32);
|
|
|
|
const wxList& list = wxImage::GetHandlers();
|
|
for ( wxList::compatibility_iterator node = list.GetFirst();
|
|
node; node = node->GetNext() )
|
|
{
|
|
wxImageHandler *handler = (wxImageHandler *) node->GetData();
|
|
|
|
#if wxUSE_PALETTE
|
|
CompareImage(*handler, expected8, wxIMAGE_HAVE_PALETTE);
|
|
#endif
|
|
CompareImage(*handler, expected24);
|
|
CompareImage(*handler, expected32, wxIMAGE_HAVE_ALPHA);
|
|
}
|
|
}
|
|
|
|
void ImageTestCase::SavePNG()
|
|
{
|
|
wxImage expected24("horse.png");
|
|
CPPUNIT_ASSERT( expected24.IsOk() );
|
|
#if wxUSE_PALETTE
|
|
CPPUNIT_ASSERT( !expected24.HasPalette() );
|
|
#endif // #if wxUSE_PALETTE
|
|
|
|
wxImage expected8 = expected24.ConvertToGreyscale();
|
|
|
|
/*
|
|
horse.png converted to greyscale should be saved without a palette.
|
|
*/
|
|
CompareImage(*wxImage::FindHandler(wxBITMAP_TYPE_PNG), expected8);
|
|
|
|
/*
|
|
But if we explicitly ask for trying to save with a palette, it should work.
|
|
*/
|
|
expected8.SetOption(wxIMAGE_OPTION_PNG_FORMAT, wxPNG_TYPE_PALETTE);
|
|
|
|
CompareImage(*wxImage::FindHandler(wxBITMAP_TYPE_PNG),
|
|
expected8, wxIMAGE_HAVE_PALETTE);
|
|
|
|
|
|
CPPUNIT_ASSERT( expected8.LoadFile("horse.gif") );
|
|
#if wxUSE_PALETTE
|
|
CPPUNIT_ASSERT( expected8.HasPalette() );
|
|
#endif // #if wxUSE_PALETTE
|
|
|
|
CompareImage(*wxImage::FindHandler(wxBITMAP_TYPE_PNG),
|
|
expected8, wxIMAGE_HAVE_PALETTE);
|
|
|
|
/*
|
|
Add alpha to the image in such a way that there will still be a maximum
|
|
of 256 unique RGBA combinations. This should result in a saved
|
|
PNG image still being palettised and having alpha.
|
|
*/
|
|
expected8.SetAlpha();
|
|
|
|
int x, y;
|
|
const int width = expected8.GetWidth();
|
|
const int height = expected8.GetHeight();
|
|
for (y = 0; y < height; ++y)
|
|
{
|
|
for (x = 0; x < width; ++x)
|
|
{
|
|
expected8.SetAlpha(x, y, expected8.GetRed(x, y));
|
|
}
|
|
}
|
|
|
|
CompareImage(*wxImage::FindHandler(wxBITMAP_TYPE_PNG),
|
|
expected8, wxIMAGE_HAVE_ALPHA|wxIMAGE_HAVE_PALETTE);
|
|
|
|
/*
|
|
Now change the alpha of the first pixel so that we can't save palettised
|
|
anymore because there will be 256+1 entries which is beyond PNGs limit
|
|
of 256 entries.
|
|
*/
|
|
expected8.SetAlpha(0, 0, 1);
|
|
|
|
CompareImage(*wxImage::FindHandler(wxBITMAP_TYPE_PNG),
|
|
expected8, wxIMAGE_HAVE_ALPHA);
|
|
|
|
/*
|
|
Even if we explicitly ask for saving palettised it should not be done.
|
|
*/
|
|
expected8.SetOption(wxIMAGE_OPTION_PNG_FORMAT, wxPNG_TYPE_PALETTE);
|
|
CompareImage(*wxImage::FindHandler(wxBITMAP_TYPE_PNG),
|
|
expected8, wxIMAGE_HAVE_ALPHA);
|
|
|
|
}
|
|
|
|
#if wxUSE_LIBTIFF
|
|
static void TestTIFFImage(const wxString& option, int value,
|
|
const wxImage *compareImage = NULL)
|
|
{
|
|
wxImage image;
|
|
if (compareImage)
|
|
{
|
|
image = *compareImage;
|
|
}
|
|
else
|
|
{
|
|
(void) image.LoadFile("horse.png");
|
|
}
|
|
CPPUNIT_ASSERT( image.IsOk() );
|
|
|
|
wxMemoryOutputStream memOut;
|
|
image.SetOption(option, value);
|
|
|
|
CPPUNIT_ASSERT(image.SaveFile(memOut, wxBITMAP_TYPE_TIFF));
|
|
|
|
wxMemoryInputStream memIn(memOut);
|
|
CPPUNIT_ASSERT(memIn.IsOk());
|
|
|
|
wxImage savedImage(memIn);
|
|
CPPUNIT_ASSERT(savedImage.IsOk());
|
|
|
|
WX_ASSERT_EQUAL_MESSAGE(("While checking for option %s", option),
|
|
true, savedImage.HasOption(option));
|
|
|
|
WX_ASSERT_EQUAL_MESSAGE(("While testing for %s", option),
|
|
value, savedImage.GetOptionInt(option));
|
|
|
|
WX_ASSERT_EQUAL_MESSAGE(("HasAlpha() not equal"), image.HasAlpha(), savedImage.HasAlpha());
|
|
}
|
|
|
|
void ImageTestCase::SaveTIFF()
|
|
{
|
|
TestTIFFImage(wxIMAGE_OPTION_TIFF_BITSPERSAMPLE, 1);
|
|
TestTIFFImage(wxIMAGE_OPTION_TIFF_SAMPLESPERPIXEL, 1);
|
|
TestTIFFImage(wxIMAGE_OPTION_TIFF_PHOTOMETRIC, 0/*PHOTOMETRIC_MINISWHITE*/);
|
|
TestTIFFImage(wxIMAGE_OPTION_TIFF_PHOTOMETRIC, 1/*PHOTOMETRIC_MINISBLACK*/);
|
|
|
|
wxImage alphaImage("horse.png");
|
|
CPPUNIT_ASSERT( alphaImage.IsOk() );
|
|
SetAlpha(&alphaImage);
|
|
|
|
// RGB with alpha
|
|
TestTIFFImage(wxIMAGE_OPTION_TIFF_SAMPLESPERPIXEL, 4, &alphaImage);
|
|
|
|
// Grey with alpha
|
|
TestTIFFImage(wxIMAGE_OPTION_TIFF_SAMPLESPERPIXEL, 2, &alphaImage);
|
|
|
|
// B/W with alpha
|
|
alphaImage.SetOption(wxIMAGE_OPTION_TIFF_BITSPERSAMPLE, 1);
|
|
TestTIFFImage(wxIMAGE_OPTION_TIFF_SAMPLESPERPIXEL, 2, &alphaImage);
|
|
}
|
|
#endif // wxUSE_LIBTIFF
|
|
|
|
void ImageTestCase::ReadCorruptedTGA()
|
|
{
|
|
static unsigned char corruptTGA[18+1+3] =
|
|
{
|
|
0,
|
|
0,
|
|
10, // RLE compressed image.
|
|
0, 0,
|
|
0, 0,
|
|
0,
|
|
0, 0,
|
|
0, 0,
|
|
1, 0, // Width is 1.
|
|
1, 0, // Height is 1.
|
|
24, // Bits per pixel.
|
|
0,
|
|
|
|
0xff, // Run length (repeat next pixel 127+1 times).
|
|
0xff, 0xff, 0xff // One 24-bit pixel.
|
|
};
|
|
|
|
wxMemoryInputStream memIn(corruptTGA, WXSIZEOF(corruptTGA));
|
|
CPPUNIT_ASSERT(memIn.IsOk());
|
|
|
|
wxImage tgaImage;
|
|
CPPUNIT_ASSERT( !tgaImage.LoadFile(memIn) );
|
|
|
|
|
|
/*
|
|
Instead of repeating a pixel 127+1 times, now tell it there will
|
|
follow 127+1 uncompressed pixels (while we only should have 1 in total).
|
|
*/
|
|
corruptTGA[18] = 0x7f;
|
|
CPPUNIT_ASSERT( !tgaImage.LoadFile(memIn) );
|
|
}
|
|
|
|
#if wxUSE_GIF
|
|
|
|
void ImageTestCase::SaveAnimatedGIF()
|
|
{
|
|
#if wxUSE_PALETTE
|
|
wxImage image("horse.gif");
|
|
CPPUNIT_ASSERT( image.IsOk() );
|
|
|
|
wxImageArray images;
|
|
images.Add(image);
|
|
for (int i = 0; i < 4-1; ++i)
|
|
{
|
|
images.Add( images[i].Rotate90() );
|
|
|
|
images[i+1].SetPalette(images[0].GetPalette());
|
|
}
|
|
|
|
wxMemoryOutputStream memOut;
|
|
CPPUNIT_ASSERT( wxGIFHandler().SaveAnimation(images, &memOut) );
|
|
|
|
wxGIFHandler handler;
|
|
wxMemoryInputStream memIn(memOut);
|
|
CPPUNIT_ASSERT(memIn.IsOk());
|
|
const int imageCount = handler.GetImageCount(memIn);
|
|
CPPUNIT_ASSERT_EQUAL(4, imageCount);
|
|
|
|
for (int i = 0; i < imageCount; ++i)
|
|
{
|
|
wxFileOffset pos = memIn.TellI();
|
|
CPPUNIT_ASSERT( handler.LoadFile(&image, memIn, true, i) );
|
|
memIn.SeekI(pos);
|
|
|
|
wxINFO_FMT("Compare test for GIF frame number %d failed", i);
|
|
CHECK_THAT(image, RGBSameAs(images[i]));
|
|
}
|
|
#endif // #if wxUSE_PALETTE
|
|
}
|
|
|
|
static void TestGIFComment(const wxString& comment)
|
|
{
|
|
wxImage image("horse.gif");
|
|
|
|
image.SetOption(wxIMAGE_OPTION_GIF_COMMENT, comment);
|
|
wxMemoryOutputStream memOut;
|
|
CPPUNIT_ASSERT(image.SaveFile(memOut, wxBITMAP_TYPE_GIF));
|
|
|
|
wxMemoryInputStream memIn(memOut);
|
|
CPPUNIT_ASSERT( image.LoadFile(memIn) );
|
|
|
|
CPPUNIT_ASSERT_EQUAL(comment,
|
|
image.GetOption(wxIMAGE_OPTION_GIF_COMMENT));
|
|
}
|
|
|
|
void ImageTestCase::GIFComment()
|
|
{
|
|
// Test reading a comment.
|
|
wxImage image("horse.gif");
|
|
CPPUNIT_ASSERT_EQUAL(" Imported from GRADATION image: gray",
|
|
image.GetOption(wxIMAGE_OPTION_GIF_COMMENT));
|
|
|
|
|
|
// Test writing a comment and reading it back.
|
|
TestGIFComment("Giving the GIF a gifted giraffe as a gift");
|
|
|
|
|
|
// Test writing and reading a comment again but with a long comment.
|
|
TestGIFComment(wxString(wxT('a'), 256)
|
|
+ wxString(wxT('b'), 256)
|
|
+ wxString(wxT('c'), 256));
|
|
|
|
|
|
// Test writing comments in an animated GIF and reading them back.
|
|
CPPUNIT_ASSERT( image.LoadFile("horse.gif") );
|
|
|
|
#if wxUSE_PALETTE
|
|
wxImageArray images;
|
|
int i;
|
|
for (i = 0; i < 4; ++i)
|
|
{
|
|
if (i)
|
|
{
|
|
images.Add( images[i-1].Rotate90() );
|
|
images[i].SetPalette(images[0].GetPalette());
|
|
}
|
|
else
|
|
{
|
|
images.Add(image);
|
|
}
|
|
|
|
images[i].SetOption(wxIMAGE_OPTION_GIF_COMMENT,
|
|
wxString::Format("GIF comment for frame #%d", i+1));
|
|
|
|
}
|
|
|
|
|
|
wxMemoryOutputStream memOut;
|
|
CPPUNIT_ASSERT( wxGIFHandler().SaveAnimation(images, &memOut) );
|
|
|
|
wxGIFHandler handler;
|
|
wxMemoryInputStream memIn(memOut);
|
|
CPPUNIT_ASSERT(memIn.IsOk());
|
|
const int imageCount = handler.GetImageCount(memIn);
|
|
for (i = 0; i < imageCount; ++i)
|
|
{
|
|
wxFileOffset pos = memIn.TellI();
|
|
CPPUNIT_ASSERT( handler.LoadFile(&image, memIn, true /*verbose?*/, i) );
|
|
|
|
CPPUNIT_ASSERT_EQUAL(
|
|
wxString::Format("GIF comment for frame #%d", i+1),
|
|
image.GetOption(wxIMAGE_OPTION_GIF_COMMENT));
|
|
memIn.SeekI(pos);
|
|
}
|
|
#endif //wxUSE_PALETTE
|
|
}
|
|
|
|
#endif // wxUSE_GIF
|
|
|
|
void ImageTestCase::DibPadding()
|
|
{
|
|
/*
|
|
There used to be an error with calculating the DWORD aligned scan line
|
|
pitch for a BMP/ICO resulting in buffer overwrites (with at least MSVC9
|
|
Debug this gave a heap corruption assertion when saving the mask of
|
|
an ICO). Test for it here.
|
|
*/
|
|
wxImage image("horse.gif");
|
|
CPPUNIT_ASSERT( image.IsOk() );
|
|
|
|
image = image.Scale(99, 99);
|
|
|
|
wxMemoryOutputStream memOut;
|
|
CPPUNIT_ASSERT( image.SaveFile(memOut, wxBITMAP_TYPE_ICO) );
|
|
}
|
|
|
|
static void CompareBMPImage(const wxString& file1, const wxString& file2)
|
|
{
|
|
wxImage image1(file1);
|
|
CPPUNIT_ASSERT( image1.IsOk() );
|
|
|
|
wxImage image2(file2);
|
|
CPPUNIT_ASSERT( image2.IsOk() );
|
|
|
|
CompareImage(*wxImage::FindHandler(wxBITMAP_TYPE_BMP), image1, 0, &image2);
|
|
}
|
|
|
|
void ImageTestCase::BMPFlippingAndRLECompression()
|
|
{
|
|
CompareBMPImage("image/horse_grey.bmp", "image/horse_grey_flipped.bmp");
|
|
|
|
CompareBMPImage("image/horse_rle8.bmp", "image/horse_grey.bmp");
|
|
CompareBMPImage("image/horse_rle8.bmp", "image/horse_rle8_flipped.bmp");
|
|
|
|
CompareBMPImage("image/horse_rle4.bmp", "image/horse_rle4_flipped.bmp");
|
|
}
|
|
|
|
|
|
static int
|
|
FindMaxChannelDiff(const wxImage& i1, const wxImage& i2)
|
|
{
|
|
if ( i1.GetWidth() != i2.GetWidth() )
|
|
return false;
|
|
|
|
if ( i1.GetHeight() != i2.GetHeight() )
|
|
return false;
|
|
|
|
const unsigned char* p1 = i1.GetData();
|
|
const unsigned char* p2 = i2.GetData();
|
|
const int numBytes = i1.GetWidth()*i1.GetHeight()*3;
|
|
int maxDiff = 0;
|
|
for ( int n = 0; n < numBytes; n++, p1++, p2++ )
|
|
{
|
|
const int diff = std::abs(*p1 - *p2);
|
|
if ( diff > maxDiff )
|
|
maxDiff = diff;
|
|
}
|
|
|
|
return maxDiff;
|
|
}
|
|
|
|
// Note that we accept up to one pixel difference, this happens because of
|
|
// different rounding behaviours in different compiler versions
|
|
// even under the same architecture, see the example in
|
|
// http://thread.gmane.org/gmane.comp.lib.wxwidgets.devel/151149/focus=151154
|
|
|
|
// The 0 below can be replaced with 1 to generate, instead of comparing with,
|
|
// the test files.
|
|
#define ASSERT_IMAGE_EQUAL_TO_FILE(image, file) \
|
|
if ( 0 ) \
|
|
{ \
|
|
CPPUNIT_ASSERT_MESSAGE( "Failed to save " file, image.SaveFile(file) ); \
|
|
} \
|
|
else \
|
|
{ \
|
|
const wxImage imageFromFile(file); \
|
|
if ( imageFromFile.IsOk() ) \
|
|
{ \
|
|
INFO("Wrong scaled \"" << file << "\" " << Catch::toString(image)); \
|
|
CHECK(FindMaxChannelDiff(imageFromFile, image) <= 1); \
|
|
} \
|
|
else \
|
|
{ \
|
|
FAIL("Failed to load \"" << file << "\""); \
|
|
} \
|
|
}
|
|
|
|
void ImageTestCase::ScaleCompare()
|
|
{
|
|
wxImage original;
|
|
CPPUNIT_ASSERT(original.LoadFile("horse.bmp"));
|
|
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale( 50, 50, wxIMAGE_QUALITY_BICUBIC),
|
|
"image/horse_bicubic_50x50.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(100, 100, wxIMAGE_QUALITY_BICUBIC),
|
|
"image/horse_bicubic_100x100.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(150, 150, wxIMAGE_QUALITY_BICUBIC),
|
|
"image/horse_bicubic_150x150.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(300, 300, wxIMAGE_QUALITY_BICUBIC),
|
|
"image/horse_bicubic_300x300.png");
|
|
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale( 50, 50, wxIMAGE_QUALITY_BOX_AVERAGE),
|
|
"image/horse_box_average_50x50.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(100, 100, wxIMAGE_QUALITY_BOX_AVERAGE),
|
|
"image/horse_box_average_100x100.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(150, 150, wxIMAGE_QUALITY_BOX_AVERAGE),
|
|
"image/horse_box_average_150x150.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(300, 300, wxIMAGE_QUALITY_BOX_AVERAGE),
|
|
"image/horse_box_average_300x300.png");
|
|
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale( 50, 50, wxIMAGE_QUALITY_BILINEAR),
|
|
"image/horse_bilinear_50x50.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(100, 100, wxIMAGE_QUALITY_BILINEAR),
|
|
"image/horse_bilinear_100x100.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(150, 150, wxIMAGE_QUALITY_BILINEAR),
|
|
"image/horse_bilinear_150x150.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(original.Scale(300, 300, wxIMAGE_QUALITY_BILINEAR),
|
|
"image/horse_bilinear_300x300.png");
|
|
|
|
// Test scaling symmetric image
|
|
const static char* cross_xpm[] =
|
|
{
|
|
"9 9 5 1",
|
|
" c None",
|
|
"r c #FF0000",
|
|
"g c #00FF00",
|
|
"b c #0000FF",
|
|
"w c #FFFFFF",
|
|
" r ",
|
|
" g ",
|
|
" b ",
|
|
" w ",
|
|
"rgbw wbgr",
|
|
" w ",
|
|
" b ",
|
|
" g ",
|
|
" r "
|
|
};
|
|
|
|
wxImage imgCross(cross_xpm);
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(imgCross.Scale(256, 256, wxIMAGE_QUALITY_BILINEAR),
|
|
"image/cross_bilinear_256x256.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(imgCross.Scale(256, 256, wxIMAGE_QUALITY_BICUBIC),
|
|
"image/cross_bicubic_256x256.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(imgCross.Scale(256, 256, wxIMAGE_QUALITY_BOX_AVERAGE),
|
|
"image/cross_box_average_256x256.png");
|
|
ASSERT_IMAGE_EQUAL_TO_FILE(imgCross.Scale(256, 256, wxIMAGE_QUALITY_NEAREST),
|
|
"image/cross_nearest_neighb_256x256.png");
|
|
}
|
|
|
|
#endif //wxUSE_IMAGE
|
|
|
|
|
|
/*
|
|
TODO: add lots of more tests to wxImage functions
|
|
*/
|