Lines Matching defs:compression
402 /* include the compression library's header */
588 int compression; /* compression value:
609 /* Supported compression types for text in PNG files (tEXt, and zTXt).
962 /* This is for compression type. PNG 1.0-1.2 only define the single type. */
1156 int zlib_level; /* holds zlib compression level */
1157 int zlib_method; /* holds zlib compression method */
1158 int zlib_window_bits; /* holds zlib compression window bits */
1159 int zlib_mem_level; /* holds zlib compression memory level */
1160 int zlib_strategy; /* holds zlib compression strategy */
1184 png_byte compression; /* file compression type (always 0) */
1466 /* Reset the compression stream */
1779 * libpng and the compression methods used by zlib. These functions are
1782 * expense of compression can modify them. See the compression library
1783 * header file (zlib.h) for an explination of the compression functions.
1828 * improve the compression for a given image.
1860 /* Set the library compression level. Currently, valid values range from
1861 * 0 - 9, corresponding directly to the zlib compression levels 0 - 9
1862 * (0 - no compression, 9 - "maximal" compression). Note that tests have
1863 * shown that zlib compression levels 3-6 usually perform as well as level 9
1865 * these values may not correspond directly to the zlib compression levels.
2982 /* Decompress data in a chunk that uses compression */
3104 png_charp text, png_size_t text_len, int compression));
3109 int compression, png_charp key, png_charp lang, png_charp lang_key,
