diff options
Diffstat (limited to 'lodepng.h')
| -rw-r--r-- | lodepng.h | 41 |
1 files changed, 37 insertions, 4 deletions
@@ -927,8 +927,9 @@ LodePNG Documentation 10. examples 10.1. decoder C++ example 10.2. decoder C example - 11. changes - 12. contact information + 11. state settings reference + 12. changes + 13. contact information 1. about @@ -1554,8 +1555,40 @@ int main(int argc, char *argv[]) return 0; } +11. state settings reference +---------------------------- -11. changes +A quick reference of some settings to set on the LodePNGState + +For decoding: + +state.decoder.zlibsettings.ignore_adler32: ignore ADLER32 checksups +state.decoder.ignore_crc: ignore CRC checksums +state.decoder.color_convert: convert internal PNG color to chosen one +state.decoder.read_text_chunks: whether to read in text metadata chunks +state.decoder.remember_unknown_chunks: whether to read in unknown chunks +state.info_raw.colortype: desired color type for decoded image +state.info_raw.bitdepth: desired bit depth for decoded image + +For encoding: + +state.encoder.zlibsettings.btype: disable compression by setting it to 0 +state.encoder.zlibsettings.use_lz77: use LZ77 in compression +state.encoder.zlibsettings.windowsize: tweak LZ77 windowsize +state.encoder.zlibsettings.minmatch: tweak min LZ77 length to match +state.encoder.zlibsettings.nicematch: tweak LZ77 match where to stop searching +state.encoder.zlibsettings.lazymatching: try one more LZ77 matching +state.encoder.auto_convert: choose optimal PNG color type, if 0 uses raw format +state.encoder.filter_palette_zero: PNG filter strategy for palette +state.encoder.filter_strategy: PNG filter strategy to encode with +state.encoder.force_palette: add palette even if not encoding to one +state.encoder.add_id: add LodePNG identifier and version as a text chunk +state.encoder.text_compression: use compressed text chunks for metadata +state.info_raw.colortype: color type of raw input image you provide +state.info_raw.bitdepth: bit depth of raw input image you provide + + +12. changes ----------- The version number of LodePNG is the date of the change given in the format @@ -1697,7 +1730,7 @@ symbol. *) 12 aug 2005: Initial release (C++, decoder only) -12. contact information +13. contact information ----------------------- Feel free to contact me with suggestions, problems, comments, ... concerning |