X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/655719367ac5e131d9642e5783f3ecf64d1a3385..c1d8296a78d1f630952fc5395e4072c8a654b8ef:/src/common/imagtiff.cpp?ds=sidebyside diff --git a/src/common/imagtiff.cpp b/src/common/imagtiff.cpp index 0ff3f128f5..8c7d45a6fb 100644 --- a/src/common/imagtiff.cpp +++ b/src/common/imagtiff.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: imagtiff.cpp +// Name: src/common/imagtiff.cpp // Purpose: wxImage TIFF handler // Author: Robert Roebling // RCS-ID: $Id$ @@ -7,10 +7,6 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -#pragma implementation "imagtiff.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -49,6 +45,39 @@ IMPLEMENT_DYNAMIC_CLASS(wxTIFFHandler,wxImageHandler) #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, + _T("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" { @@ -65,7 +94,7 @@ _tiffReadProc(thandle_t handle, tdata_t buf, tsize_t size) { wxInputStream *stream = (wxInputStream*) handle; stream->Read( (void*) buf, (size_t) size ); - return stream->LastRead(); + return wx_truncate_cast(tsize_t, stream->LastRead()); } tsize_t TIFFLINKAGEMODE @@ -73,39 +102,25 @@ _tiffWriteProc(thandle_t handle, tdata_t buf, tsize_t size) { wxOutputStream *stream = (wxOutputStream*) handle; stream->Write( (void*) buf, (size_t) size ); - return stream->LastWrite(); + return wx_truncate_cast(tsize_t, stream->LastWrite()); } toff_t TIFFLINKAGEMODE _tiffSeekIProc(thandle_t handle, toff_t off, int whence) { wxInputStream *stream = (wxInputStream*) handle; - wxSeekMode mode; - switch (whence) - { - case SEEK_SET: mode = wxFromStart; break; - case SEEK_CUR: mode = wxFromCurrent; break; - case SEEK_END: mode = wxFromEnd; break; - default: mode = wxFromCurrent; break; - } - return (toff_t)stream->SeekI( (off_t)off, mode ); + return wxFileOffsetToTIFF(stream->SeekI((wxFileOffset)off, + wxSeekModeFromTIFF(whence))); } toff_t TIFFLINKAGEMODE _tiffSeekOProc(thandle_t handle, toff_t off, int whence) { wxOutputStream *stream = (wxOutputStream*) handle; - wxSeekMode mode; - switch (whence) - { - case SEEK_SET: mode = wxFromStart; break; - case SEEK_CUR: mode = wxFromCurrent; break; - case SEEK_END: mode = wxFromEnd; break; - default: mode = wxFromCurrent; break; - } - return (toff_t)stream->SeekO( (off_t)off, mode ); + return wxFileOffsetToTIFF(stream->SeekO((wxFileOffset)off, + wxSeekModeFromTIFF(whence))); } int TIFFLINKAGEMODE @@ -137,19 +152,35 @@ _tiffUnmapProc(thandle_t WXUNUSED(handle), } static void -TIFFwxWarningHandler(const char* module, const char* fmt, va_list ap) +TIFFwxWarningHandler(const char* module, + const char* WXUNUSED_IN_UNICODE(fmt), + va_list WXUNUSED_IN_UNICODE(ap)) { if (module != NULL) - wxLogWarning(_("tiff module: %s"), module); - wxLogWarning((wxChar *) fmt, ap); + wxLogWarning(_("tiff module: %s"), wxString::FromAscii(module).c_str()); + + // FIXME: this is not terrible informative but better than crashing! +#if wxUSE_UNICODE + wxLogWarning(_("TIFF library warning.")); +#else + wxVLogWarning(fmt, ap); +#endif } - + static void -TIFFwxErrorHandler(const char* module, const char* fmt, va_list ap) +TIFFwxErrorHandler(const char* module, + const char* WXUNUSED_IN_UNICODE(fmt), + va_list WXUNUSED_IN_UNICODE(ap)) { if (module != NULL) - wxLogError(_("tiff module: %s"), module); - wxVLogError((wxChar *) fmt, ap); + wxLogError(_("tiff module: %s"), wxString::FromAscii(module).c_str()); + + // FIXME: as above +#if wxUSE_UNICODE + wxLogError(_("TIFF library error.")); +#else + wxVLogError(fmt, ap); +#endif } } // extern "C" @@ -202,7 +233,7 @@ bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos if (verbose) wxLogError( _("TIFF: Error loading image.") ); - return FALSE; + return false; } if (!TIFFSetDirectory( tif, (tdir_t)index )) @@ -212,7 +243,7 @@ bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos TIFFClose( tif ); - return FALSE; + return false; } uint32 w, h; @@ -233,7 +264,7 @@ bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos TIFFClose( tif ); - return FALSE; + return false; } image->Create( (int)w, (int)h ); @@ -245,7 +276,7 @@ bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos _TIFFfree( raster ); TIFFClose( tif ); - return FALSE; + return false; } if (!TIFFReadRGBAImage( tif, w, h, raster, 0 )) @@ -257,10 +288,10 @@ bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos image->Destroy(); TIFFClose( tif ); - return FALSE; + return false; } - bool hasmask = FALSE; + bool hasmask = false; unsigned char *ptr = image->GetData(); ptr += w*3*(h-1); @@ -273,7 +304,7 @@ bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos unsigned char alpha = (unsigned char)TIFFGetA(raster[pos]); if (alpha < 127) { - hasmask = TRUE; + hasmask = true; ptr[0] = image->GetMaskRed(); ptr++; ptr[0] = image->GetMaskGreen(); @@ -301,7 +332,7 @@ bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos image->SetMask( hasmask ); - return TRUE; + return true; } int wxTIFFHandler::GetImageCount( wxInputStream& stream ) @@ -330,22 +361,51 @@ bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo if (verbose) wxLogError( _("TIFF: Error saving image.") ); - return FALSE; + 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_SAMPLESPERPIXEL, 3); - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB); - TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_LZW); - tsize_t linebytes = (tsize_t)image->GetWidth() * 3; + if ( image->HasOption(wxIMAGE_OPTION_RESOLUTIONX) && + image->HasOption(wxIMAGE_OPTION_RESOLUTIONY) ) + { + TIFFSetField(tif, TIFFTAG_XRESOLUTION, + (float)image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONX)); + TIFFSetField(tif, TIFFTAG_YRESOLUTION, + (float)image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONY)); + } + + 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 ) + compression=COMPRESSION_LZW; + + 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) + if (TIFFScanlineSize(tif) > linebytes || (spp * bpp < 24)) { buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(tif)); if (!buf) @@ -355,7 +415,7 @@ bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo TIFFClose( tif ); - return FALSE; + return false; } } else @@ -363,16 +423,38 @@ bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo buf = NULL; } - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, - TIFFDefaultStripSize(tif, (uint32) -1)); + TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP,TIFFDefaultStripSize(tif, (uint32) -1)); unsigned char *ptr = image->GetData(); - for (int row = 0; row < image->GetHeight(); row++) + for ( int row = 0; row < image->GetHeight(); row++ ) { - if (buf) - memcpy(buf, ptr, image->GetWidth()); + 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 ( TIFFWriteScanline(tif, buf ? buf : ptr, (uint32)row, 0) < 0 ) { if (verbose) wxLogError( _("TIFF: Error writing image.") ); @@ -381,25 +463,26 @@ bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo if (buf) _TIFFfree(buf); - return FALSE; + return false; } + ptr += image->GetWidth()*3; } (void) TIFFClose(tif); if (buf) - _TIFFfree(buf); + _TIFFfree(buf); - return TRUE; + return true; } bool wxTIFFHandler::DoCanRead( wxInputStream& stream ) { unsigned char hdr[2]; - if ( !stream.Read(&hdr, WXSIZEOF(hdr)) ) - return FALSE; + if ( !stream.Read(&hdr[0], WXSIZEOF(hdr)) ) + return false; return (hdr[0] == 'I' && hdr[1] == 'I') || (hdr[0] == 'M' && hdr[1] == 'M'); @@ -408,4 +491,3 @@ bool wxTIFFHandler::DoCanRead( wxInputStream& stream ) #endif // wxUSE_STREAMS #endif // wxUSE_LIBTIFF -