X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0b72db08a78016b2cf89a454b307fb71942e8704..4cbcfb73a037462ccf4d54b3e50c58e37cc61aa9:/src/common/imagtiff.cpp?ds=inline diff --git a/src/common/imagtiff.cpp b/src/common/imagtiff.cpp index 1ca0a0d0f7..07202e5c1c 100644 --- a/src/common/imagtiff.cpp +++ b/src/common/imagtiff.cpp @@ -1,17 +1,12 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: imagjpeg.cpp -// Purpose: wxImage JPEG handler -// Author: Vaclav Slavik +// Name: src/common/imagtiff.cpp +// Purpose: wxImage TIFF handler +// Author: Robert Roebling // RCS-ID: $Id$ -// Copyright: (c) Vaclav Slavik +// Copyright: (c) Robert Roebling // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -/* - We don't put pragma implement in this file because it is already present in - src/common/image.cpp -*/ - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -21,9 +16,9 @@ #include "wx/defs.h" -#if wxUSE_LIBTIFF +#if wxUSE_IMAGE && wxUSE_LIBTIFF -#include "wx/image.h" +#include "wx/imagtiff.h" #include "wx/bitmap.h" #include "wx/debug.h" #include "wx/log.h" @@ -32,22 +27,69 @@ extern "C" { #include "tiff.h" #include "tiffio.h" - #include "tiffiop.h" } #include "wx/filefn.h" #include "wx/wfstream.h" #include "wx/intl.h" #include "wx/module.h" +#ifndef TIFFLINKAGEMODE + #define TIFFLINKAGEMODE LINKAGEMODE +#endif + //----------------------------------------------------------------------------- // wxTIFFHandler //----------------------------------------------------------------------------- -#if !USE_SHARED_LIBRARIES IMPLEMENT_DYNAMIC_CLASS(wxTIFFHandler,wxImageHandler) -#endif -static tsize_t +#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" +{ + +tsize_t TIFFLINKAGEMODE +_tiffNullProc(thandle_t WXUNUSED(handle), + tdata_t WXUNUSED(buf), + tsize_t WXUNUSED(size)) +{ + return (tsize_t) -1; +} + +tsize_t TIFFLINKAGEMODE _tiffReadProc(thandle_t handle, tdata_t buf, tsize_t size) { wxInputStream *stream = (wxInputStream*) handle; @@ -55,7 +97,7 @@ _tiffReadProc(thandle_t handle, tdata_t buf, tsize_t size) return stream->LastRead(); } -static tsize_t +tsize_t TIFFLINKAGEMODE _tiffWriteProc(thandle_t handle, tdata_t buf, tsize_t size) { wxOutputStream *stream = (wxOutputStream*) handle; @@ -63,183 +105,389 @@ _tiffWriteProc(thandle_t handle, tdata_t buf, tsize_t size) return stream->LastWrite(); } -static toff_t -_tiffSeekProc(thandle_t handle, toff_t off, int whence) +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; + + return wxFileOffsetToTIFF(stream->SeekO((wxFileOffset)off, + wxSeekModeFromTIFF(whence))); } -static int +int TIFFLINKAGEMODE _tiffCloseProc(thandle_t WXUNUSED(handle)) { return 0; // ? } -static toff_t +toff_t TIFFLINKAGEMODE _tiffSizeProc(thandle_t handle) { - wxInputStream *stream = (wxInputStream*) handle; + wxStreamBase *stream = (wxStreamBase*) handle; return (toff_t) stream->GetSize(); } -static int -_tiffMapProc(thandle_t WXUNUSED(handle), tdata_t* pbase, toff_t* psize) +int TIFFLINKAGEMODE +_tiffMapProc(thandle_t WXUNUSED(handle), + tdata_t* WXUNUSED(pbase), + toff_t* WXUNUSED(psize)) { return 0; } +void TIFFLINKAGEMODE +_tiffUnmapProc(thandle_t WXUNUSED(handle), + tdata_t WXUNUSED(base), + toff_t WXUNUSED(size)) +{ +} + +static void +TIFFwxWarningHandler(const char* module, + const char* WXUNUSED_IN_UNICODE(fmt), + va_list WXUNUSED_IN_UNICODE(ap)) +{ + if (module != NULL) + 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 -_tiffUnmapProc(thandle_t WXUNUSED(handle), tdata_t base, toff_t size) +TIFFwxErrorHandler(const char* module, + const char* WXUNUSED_IN_UNICODE(fmt), + va_list WXUNUSED_IN_UNICODE(ap)) { + if (module != NULL) + 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" + TIFF* TIFFwxOpen(wxInputStream &stream, const char* name, const char* mode) { TIFF* tif = TIFFClientOpen(name, mode, (thandle_t) &stream, - _tiffReadProc, _tiffWriteProc, - _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, + _tiffReadProc, _tiffNullProc, + _tiffSeekIProc, _tiffCloseProc, _tiffSizeProc, + _tiffMapProc, _tiffUnmapProc); + + return tif; +} + +TIFF* +TIFFwxOpen(wxOutputStream &stream, const char* name, const char* mode) +{ + TIFF* tif = TIFFClientOpen(name, mode, + (thandle_t) &stream, + _tiffNullProc, _tiffWriteProc, + _tiffSeekOProc, _tiffCloseProc, _tiffSizeProc, _tiffMapProc, _tiffUnmapProc); - if (tif) - tif->tif_fd = (int) &stream; - return tif; } +wxTIFFHandler::wxTIFFHandler() +{ + m_name = wxT("TIFF file"); + m_extension = wxT("tif"); + m_type = wxBITMAP_TYPE_TIF; + m_mime = wxT("image/tiff"); + TIFFSetWarningHandler((TIFFErrorHandler) TIFFwxWarningHandler); + TIFFSetErrorHandler((TIFFErrorHandler) TIFFwxErrorHandler); +} -bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbose ) +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( _("Error loading TIFF image.") ); - - return FALSE; + 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; - size_t npixels; + uint32 npixels; uint32 *raster; - + TIFFGetField( tif, TIFFTAG_IMAGEWIDTH, &w ); TIFFGetField( tif, TIFFTAG_IMAGELENGTH, &h ); - + npixels = w * h; - + raster = (uint32*) _TIFFmalloc( npixels * sizeof(uint32) ); - + if (!raster) { if (verbose) - wxLogError( _("Not enough memory for loading TIFF image.") ); - - return FALSE; + wxLogError( _("TIFF: Couldn't allocate memory.") ); + + TIFFClose( tif ); + + return false; } - image->Create( w, h ); - if (!image->Ok()) + image->Create( (int)w, (int)h ); + if (!image->Ok()) { if (verbose) - wxLogError( _("Not enough memory for loading TIFF image.") ); - - _TIFFfree( raster ); - - return FALSE; + wxLogError( _("TIFF: Couldn't allocate memory.") ); + + _TIFFfree( raster ); + TIFFClose( tif ); + + return false; } - + if (!TIFFReadRGBAImage( tif, w, h, raster, 0 )) { if (verbose) - wxLogError( _("Error reading TIFF image.") ); - - _TIFFfree( raster ); - image->Destroy(); - - return FALSE; + wxLogError( _("TIFF: Error reading image.") ); + + _TIFFfree( raster ); + image->Destroy(); + TIFFClose( tif ); + + return false; } - - bool hasmask = FALSE; - + + bool hasmask = false; + unsigned char *ptr = image->GetData(); + ptr += w*3*(h-1); uint32 pos = 0; - + for (uint32 i = 0; i < h; i++) { - for (uint32 j = 0; w < h; j++) - { - unsigned char alpha = (unsigned char)(raster[pos] >> 24); - if (alpha < 127) - { - hasmask = TRUE; - ptr[0] = image->GetMaskRed(); - ptr++; - ptr[0] = image->GetMaskGreen(); - ptr++; - ptr[0] = image->GetMaskBlue(); - ptr++; - } - else - { - ptr[0] = (unsigned char)(raster[pos] >> 16); - ptr++; - ptr[0] = (unsigned char)(raster[pos] >> 8); - ptr++; - ptr[0] = (unsigned char)(raster[pos]); - ptr++; - } - pos++; - } + for (uint32 j = 0; j < w; j++) + { + unsigned char alpha = (unsigned char)TIFFGetA(raster[pos]); + if (alpha < 127) + { + hasmask = true; + ptr[0] = image->GetMaskRed(); + ptr++; + ptr[0] = image->GetMaskGreen(); + ptr++; + ptr[0] = image->GetMaskBlue(); + ptr++; + } + else + { + ptr[0] = (unsigned char)TIFFGetR(raster[pos]); + ptr++; + ptr[0] = (unsigned char)TIFFGetG(raster[pos]); + ptr++; + ptr[0] = (unsigned char)TIFFGetB(raster[pos]); + ptr++; + } + pos++; + } + ptr -= 2*w*3; // subtract line we just added plus one line } - + _TIFFfree( raster ); - + TIFFClose( tif ); - + image->SetMask( hasmask ); - - return TRUE; + + return true; } +int wxTIFFHandler::GetImageCount( 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)); -bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbose ) -{ - return FALSE; + TIFFClose( tif ); + + return dircount; } -bool wxTIFFHandler::DoCanRead( wxInputStream& stream ) +bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbose ) { - unsigned char hdr[2]; + TIFF *tif = TIFFwxOpen( stream, "image", "w" ); - stream.Read(&hdr, 2); - stream.SeekI(-2, wxFromCurrent); - - return ((hdr[0] == 0x49 && hdr[1] == 0x49) || - (hdr[0] == 0x4D && hdr[1] == 0x4D)); -} + 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); -#endif - // wxUSE_LIBTIFF + 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 || (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)) ) + return false; + + return (hdr[0] == 'I' && hdr[1] == 'I') || + (hdr[0] == 'M' && hdr[1] == 'M'); +} +#endif // wxUSE_STREAMS +#endif // wxUSE_LIBTIFF