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| author | Hans Hagen <pragma@wxs.nl> | 2022-09-16 15:53:42 +0200 |
|---|---|---|
| committer | Context Git Mirror Bot <phg@phi-gamma.net> | 2022-09-16 15:53:42 +0200 |
| commit | c161b7d6fe142231346cc1844e6e27c0ab7718c1 (patch) | |
| tree | 3fd877b8986137703e987e4651a2db8e946a0f72 /source/luametatex/source/libraries/pplib/util/utillzw.h | |
| parent | e94fa4dc30ec28a6727aa85e17aaac18b76aeadb (diff) | |
| download | context-c161b7d6fe142231346cc1844e6e27c0ab7718c1.tar.gz | |
2022-09-16 14:41:00
Diffstat (limited to 'source/luametatex/source/libraries/pplib/util/utillzw.h')
| -rw-r--r-- | source/luametatex/source/libraries/pplib/util/utillzw.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/source/luametatex/source/libraries/pplib/util/utillzw.h b/source/luametatex/source/libraries/pplib/util/utillzw.h new file mode 100644 index 000000000..9e3a085d4 --- /dev/null +++ b/source/luametatex/source/libraries/pplib/util/utillzw.h @@ -0,0 +1,30 @@ +#ifndef UTIL_LZW_H +#define UTIL_LZW_H + +#include "utiliof.h" + +typedef struct lzw_state lzw_state; + +#define LZW_BASE_BITS 8 +#define LZW_TABLE_ALLOC (1<<4) +#define LZW_EARLY_INDEX (1<<5) +//#define LZW_LOW_BITS_FIRST (1<<6) +#define LZW_DECODER_DEFAULTS (LZW_BASE_BITS|LZW_EARLY_INDEX|0) +#define LZW_ENCODER_DEFAULTS (LZW_BASE_BITS|LZW_EARLY_INDEX|0) + +lzw_state * lzw_decoder_init (lzw_state *state, int flags); +lzw_state * lzw_encoder_init (lzw_state *state, int flags); + +void lzw_decoder_close (lzw_state *state); +void lzw_encoder_close (lzw_state *state); + +iof_status lzw_encode_state (iof *I, iof *O, lzw_state *state); +iof_status lzw_decode_state (iof *I, iof *O, lzw_state *state); + +iof_status lzw_encode (iof *I, iof *O, int flags); +iof_status lzw_decode (iof *I, iof *O, int flags); + +iof * iof_filter_lzw_decoder (iof *N, int flags); +iof * iof_filter_lzw_encoder (iof *N, int flags); + +#endif
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