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Diffstat (limited to 'src/imageutils-lodepng.cc')
| -rw-r--r-- | src/imageutils-lodepng.cc | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/imageutils-lodepng.cc b/src/imageutils-lodepng.cc index cd104d6..a71a017 100644 --- a/src/imageutils-lodepng.cc +++ b/src/imageutils-lodepng.cc @@ -9,7 +9,12 @@ bool write_png(std::ostream &output, unsigned char *pixels, int width, int height) { std::vector<unsigned char> dataout; - unsigned err = lodepng::encode(dataout, pixels, width, height, LCT_RGBA, 8); + lodepng::State state; + state.encoder.auto_convert = LAC_NO; + // some png renderers have different interpretations of alpha, so don't use it + state.info_png.color.colortype = LCT_RGB; + state.info_png.color.bitdepth = 8; + unsigned err = lodepng::encode(dataout, pixels, width, height, state); if ( err ) return false; output.write( reinterpret_cast<const char *>(&dataout[0]), dataout.size()); if ( output.bad() ) std::cerr << "Error writing to ostream\n"; |