src/libwdx/libwdx.h

   1 /*
   2  * original code: WDOSX-Pack v1.07, (c) 1999-2001 by Joergen Ibsen / Jibz
   3  * for data and executable compression software: http://www.ibsensoftware.com/
   4  */
   5 #ifndef WDXLIB_H
   6 #define WDXLIB_H
   7
   8 #ifdef __cplusplus
   9 extern "C" {
  10 #endif
  11
  12 #include <stdint.h>
  13
  14
  15 #ifndef WDX_EXCLUDE_CRC
  16 /* poly: 0xedb88320L: ISO 3309, ITU-T V.42 */
  17 extern uint32_t wdxCRC32 (const void *src, int len) __attribute__((pure));
  18 #endif
  19
  20 #ifndef WDX_EXCLUDE_PACKER
  21 /* compress buffer
  22  * return -1 or size of the packed data
  23  * uncompressible data may be expanded by up to 1 bit per byte:
  24  * i.e. the destination should be length+((length+7)/8)+2 bytes
  25  */
  26 extern int wdxPack (void *dest, int destSize, const void *source, int length);
  27
  28 /* returs max size of the packed data with the given length */
  29 extern int wdxPackBufferSize (int inSize) __attribute__((const));
  30 #endif
  31
  32 #ifndef WDX_EXCLUDE_UNPACKER
  33 /* decompress buffer
  34  * return -1 or size of the unpacked data
  35  */
  36 extern int wdxUnpack (void *bufOut, int outSize, const void *bufIn, int inSize);
  37 #endif
  38
  39
  40 #ifdef __cplusplus
  41 }
  42 #endif
  43 #endif