diff options
Diffstat (limited to 'src/lzw.h')
-rw-r--r-- | src/lzw.h | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -17,12 +17,36 @@ */ +/* Declare lzw internal context structure */ +struct lzw_ctx; + + /** LZW decoding response codes */ typedef enum lzw_result { LZW_OK, /**< Success */ LZW_OK_EOD, /**< Success; reached zero-length sub-block */ + LZW_NO_MEM, /**< Error: Out of memory */ LZW_NO_DATA, /**< Error: Out of data */ } lzw_result; +/** + * Create an LZW decompression context. + * + * \param[out] ctx Returns an LZW decompression context. Caller owned, + * free with lzw_context_destroy(). + * \return LZW_OK on success, or appropriate error code otherwise. + */ +lzw_result lzw_context_create( + struct lzw_ctx **ctx); + +/** + * Destroy an LZW decompression context. + * + * \param[in] ctx The LZW decompression context to destroy. + */ +void lzw_context_destroy( + struct lzw_ctx *ctx); + + #endif |