// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
extern "C"
{
+#ifdef __DMC__
+ #include "tif_config.h"
+#endif
#include "tiff.h"
#include "tiffio.h"
}
#endif
#endif
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// TIFF library error/warning handlers
+// ----------------------------------------------------------------------------
+
+extern "C"
+{
+
+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
+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"
+
//-----------------------------------------------------------------------------
// wxTIFFHandler
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxTIFFHandler,wxImageHandler)
+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);
+}
+
#if wxUSE_STREAMS
// helper to translate our, possibly 64 bit, wxFileOffset to TIFF, always 32
{
}
-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
-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*
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)
TIFFGetField( tif, TIFFTAG_IMAGEWIDTH, &w );
TIFFGetField( tif, TIFFTAG_IMAGELENGTH, &h );
+ uint16 extraSamples;
+ uint16* samplesInfo;
+ TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES,
+ &extraSamples, &samplesInfo);
+ const bool hasAlpha = (extraSamples == 1 &&
+ (samplesInfo[0] == EXTRASAMPLE_ASSOCALPHA ||
+ samplesInfo[0] == EXTRASAMPLE_UNASSALPHA));
+
npixels = w * h;
raster = (uint32*) _TIFFmalloc( npixels * sizeof(uint32) );
return false;
}
+ if ( hasAlpha )
+ image->SetAlpha();
+
if (!TIFFReadRGBAImage( tif, w, h, raster, 0 ))
{
if (verbose)
return false;
}
- bool hasmask = false;
-
unsigned char *ptr = image->GetData();
ptr += w*3*(h-1);
+
+ unsigned char *alpha = hasAlpha ? image->GetAlpha() : NULL;
+ if ( hasAlpha )
+ alpha += w*(h-1);
+
uint32 pos = 0;
for (uint32 i = 0; i < h; i++)
{
for (uint32 j = 0; j < w; j++)
{
- 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++;
- }
+ *(ptr++) = (unsigned char)TIFFGetR(raster[pos]);
+ *(ptr++) = (unsigned char)TIFFGetG(raster[pos]);
+ *(ptr++) = (unsigned char)TIFFGetB(raster[pos]);
+ if ( hasAlpha )
+ *(alpha++) = (unsigned char)TIFFGetA(raster[pos]);
+
pos++;
}
- ptr -= 2*w*3; // subtract line we just added plus one line
+
+ // subtract line we just added plus one line:
+ ptr -= 2*w*3;
+ if ( hasAlpha )
+ alpha -= 2*w;
}
+ // set the image resolution if it's available
+ uint16 tiffRes;
+ if ( TIFFGetField(tif, TIFFTAG_RESOLUTIONUNIT, &tiffRes) )
+ {
+ wxImageResolution res;
+ switch ( tiffRes )
+ {
+ default:
+ wxLogWarning(_("Unknown TIFF resolution unit %d ignored"),
+ tiffRes);
+ // fall through
+
+ case RESUNIT_NONE:
+ res = wxIMAGE_RESOLUTION_NONE;
+ break;
+
+ case RESUNIT_INCH:
+ res = wxIMAGE_RESOLUTION_INCHES;
+ break;
+
+ case RESUNIT_CENTIMETER:
+ res = wxIMAGE_RESOLUTION_CM;
+ break;
+ }
+
+ if ( res != wxIMAGE_RESOLUTION_NONE )
+ {
+ float xres, yres;
+ if ( TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) )
+ image->SetOption(wxIMAGE_OPTION_RESOLUTIONX, wxRound(xres));
+
+ if ( TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) )
+ image->SetOption(wxIMAGE_OPTION_RESOLUTIONY, wxRound(yres));
+ }
+ }
+
+
_TIFFfree( raster );
TIFFClose( tif );
- image->SetMask( hasmask );
-
return true;
}
TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
- if ( image->HasOption(wxIMAGE_OPTION_RESOLUTIONX) &&
- image->HasOption(wxIMAGE_OPTION_RESOLUTIONY) )
+ // save the image resolution if we have it
+ int xres, yres;
+ const wxImageResolution res = GetResolutionFromOptions(*image, &xres, &yres);
+ uint16 tiffRes;
+ switch ( res )
{
- TIFFSetField(tif, TIFFTAG_XRESOLUTION,
- (float)image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONX));
- TIFFSetField(tif, TIFFTAG_YRESOLUTION,
- (float)image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONY));
+ default:
+ wxFAIL_MSG( _T("unknown image resolution units") );
+ // fall through
+
+ case wxIMAGE_RESOLUTION_NONE:
+ tiffRes = RESUNIT_NONE;
+ break;
+
+ case wxIMAGE_RESOLUTION_INCHES:
+ tiffRes = RESUNIT_INCH;
+ break;
+
+ case wxIMAGE_RESOLUTION_CM:
+ tiffRes = RESUNIT_CENTIMETER;
+ break;
}
+ if ( tiffRes != RESUNIT_NONE )
+ {
+ TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, tiffRes);
+ TIFFSetField(tif, TIFFTAG_XRESOLUTION, (float)xres);
+ TIFFSetField(tif, TIFFTAG_YRESOLUTION, (float)yres);
+ }
+
+
int spp = image->GetOptionInt(wxIMAGE_OPTION_SAMPLESPERPIXEL);
if ( !spp )
spp = 3;
int bpp = image->GetOptionInt(wxIMAGE_OPTION_BITSPERSAMPLE);
if ( !bpp )
- bpp=8;
+ bpp = 8;
int compression = image->GetOptionInt(wxIMAGE_OPTION_COMPRESSION);
if ( !compression )
projects / wxWidgets.git / blobdiff