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16-bit tiff and png saving broken on big endian, Issue 2675

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Ingo
2015-02-22 23:36:28 +01:00
parent 4e8a326645
commit b724b616f2
3 changed files with 15 additions and 4 deletions
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6
rtengine/imageio.cc
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@@ -802,11 +802,13 @@ int ImageIO::savePNG (Glib::ustring fname, int compression, volatile int bps) {
getScanline (i, row, bps);
if (bps==16) {
// convert to network byte order
#if __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__
for (int j=0; j<width*6; j+=2) {
unsigned char tmp = row[j];
row[j] = row[j+1];
row[j+1] = tmp;
}
#endif
}
png_write_row (png, (png_byte*)row);
@@ -1053,7 +1055,11 @@ int ImageIO::saveTIFF (Glib::ustring fname, int bps, bool uncompressed) {
if (size>0 && size<165530)
fwrite (buffer, size, 1, file);
#if __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__
bool needsReverse = bps==16 && exifRoot->getOrder()==rtexif::MOTOROLA;
#else
bool needsReverse = bps==16 && exifRoot->getOrder()==rtexif::INTEL;
#endif
for (int i=0; i<height; i++) {
getScanline (i, linebuffer, bps);