// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "imagtiff.h"
#endif
#include "wx/defs.h"
-#if wxUSE_LIBTIFF
+#if wxUSE_IMAGE && wxUSE_LIBTIFF
#include "wx/imagtiff.h"
#include "wx/bitmap.h"
#include "wx/intl.h"
#include "wx/module.h"
+#ifndef TIFFLINKAGEMODE
+ #define TIFFLINKAGEMODE LINKAGEMODE
+#endif
+
//-----------------------------------------------------------------------------
// wxTIFFHandler
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxTIFFHandler,wxImageHandler)
-static tsize_t
+#if wxUSE_STREAMS
+
+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;
return stream->LastRead();
}
-static tsize_t
+tsize_t TIFFLINKAGEMODE
_tiffWriteProc(thandle_t handle, tdata_t buf, tsize_t size)
{
wxOutputStream *stream = (wxOutputStream*) handle;
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;
return (toff_t)stream->SeekI( (off_t)off, mode );
}
-static int
+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 );
+}
+
+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
+int TIFFLINKAGEMODE
_tiffMapProc(thandle_t WXUNUSED(handle),
tdata_t* WXUNUSED(pbase),
toff_t* WXUNUSED(psize))
return 0;
}
-static void
+void TIFFLINKAGEMODE
_tiffUnmapProc(thandle_t WXUNUSED(handle),
tdata_t WXUNUSED(base),
toff_t WXUNUSED(size))
{
}
+static void
+TIFFwxWarningHandler(const char* module, const char* fmt, va_list ap)
+{
+ if (module != NULL)
+ wxLogWarning(_("tiff module: %s"), module);
+ wxLogWarning((wxChar *) fmt, ap);
+}
+
+static void
+TIFFwxErrorHandler(const char* module, const char* fmt, va_list ap)
+{
+ if (module != NULL)
+ wxLogError(_("tiff module: %s"), module);
+ wxVLogError((wxChar *) fmt, ap);
+}
+
+} // 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);
+
+ 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, int index )
{
+ if (index == -1)
+ index = 0;
+
image->Destroy();
TIFF *tif = TIFFwxOpen( stream, "image", "r" );
if (verbose)
wxLogError( _("TIFF: Error loading image.") );
- return FALSE;
+ return false;
}
if (!TIFFSetDirectory( tif, (tdir_t)index ))
TIFFClose( tif );
- return FALSE;
+ return false;
}
uint32 w, h;
if (verbose)
wxLogError( _("TIFF: Couldn't allocate memory.") );
- return FALSE;
+ TIFFClose( tif );
+
+ return false;
}
image->Create( (int)w, (int)h );
wxLogError( _("TIFF: Couldn't allocate memory.") );
_TIFFfree( raster );
+ TIFFClose( tif );
- return FALSE;
+ return false;
}
if (!TIFFReadRGBAImage( tif, w, h, raster, 0 ))
_TIFFfree( raster );
image->Destroy();
+ TIFFClose( tif );
- return FALSE;
+ return false;
}
- bool hasmask = FALSE;
+ bool hasmask = false;
unsigned char *ptr = image->GetData();
ptr += w*3*(h-1);
unsigned char alpha = (unsigned char)TIFFGetA(raster[pos]);
if (alpha < 127)
{
- hasmask = TRUE;
+ hasmask = true;
ptr[0] = image->GetMaskRed();
ptr++;
ptr[0] = image->GetMaskGreen();
image->SetMask( hasmask );
- return TRUE;
+ return true;
}
int wxTIFFHandler::GetImageCount( wxInputStream& stream )
return dircount;
}
-bool wxTIFFHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), bool WXUNUSED(verbose) )
+bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbose )
{
- return FALSE;
-}
+ TIFF *tif = TIFFwxOpen( stream, "image", "w" );
-bool wxTIFFHandler::DoCanRead( wxInputStream& stream )
-{
- unsigned char hdr[2];
+ if (!tif)
+ {
+ if (verbose)
+ wxLogError( _("TIFF: Error saving image.") );
- stream.Read(&hdr, 2);
- stream.SeekI(-2, wxFromCurrent);
+ return false;
+ }
- return ((hdr[0] == 0x49 && hdr[1] == 0x49) ||
- (hdr[0] == 0x4D && hdr[1] == 0x4D));
-}
+ 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;
+ unsigned char *buf;
-#endif
- // wxUSE_LIBTIFF
+ if (TIFFScanlineSize(tif) > linebytes)
+ {
+ 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)
+ memcpy(buf, ptr, image->GetWidth());
+ 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
projects / wxWidgets.git / blobdiff