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Added support to quick thumbnail code to load PPM embedded thumbnails.

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This commit is contained in:
Steve Herrell
2010-12-01 20:04:29 -05:00
parent ecef42b4c1
commit ab777634db
6 changed files with 83 additions and 5 deletions
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25
rtengine/imageio.cc
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@@ -476,6 +476,31 @@ int ImageIO::loadTIFF (Glib::ustring fname) {
return IMIO_SUCCESS;
}
int ImageIO::loadPPMFromMemory(const char* buffer, int width, int height, bool swap, int bps)
{
allocate (width, height);
int line_length(width * 3 * (bps/8));
if ( swap && bps > 8 )
{
char swapped[line_length];
for ( int row = 0; row < height; ++row )
{
::swab(((char*)buffer) + (row * line_length),swapped,line_length);
setScanline(row,(unsigned char*)&swapped[0],bps);
}
}
else
{
for ( int row = 0; row < height; ++row )
{
setScanline(row,((unsigned char*)buffer) + (row * line_length),bps);
}
}
return IMIO_SUCCESS;
}
int ImageIO::savePNG (Glib::ustring fname, int compression, int bps) {