dfltcc_inflate.h 2.4 KB

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  1. #ifndef DFLTCC_INFLATE_H
  2. #define DFLTCC_INFLATE_H
  3. #include "dfltcc_common.h"
  4. void Z_INTERNAL PREFIX(dfltcc_reset_inflate_state)(PREFIX3(streamp) strm);
  5. int Z_INTERNAL PREFIX(dfltcc_can_inflate)(PREFIX3(streamp) strm);
  6. typedef enum {
  7. DFLTCC_INFLATE_CONTINUE,
  8. DFLTCC_INFLATE_BREAK,
  9. DFLTCC_INFLATE_SOFTWARE,
  10. } dfltcc_inflate_action;
  11. dfltcc_inflate_action Z_INTERNAL PREFIX(dfltcc_inflate)(PREFIX3(streamp) strm, int flush, int *ret);
  12. int Z_INTERNAL PREFIX(dfltcc_was_inflate_used)(PREFIX3(streamp) strm);
  13. int Z_INTERNAL PREFIX(dfltcc_inflate_disable)(PREFIX3(streamp) strm);
  14. int Z_INTERNAL PREFIX(dfltcc_inflate_set_dictionary)(PREFIX3(streamp) strm,
  15. const unsigned char *dictionary, uInt dict_length);
  16. int Z_INTERNAL PREFIX(dfltcc_inflate_get_dictionary)(PREFIX3(streamp) strm,
  17. unsigned char *dictionary, uInt* dict_length);
  18. #define INFLATE_RESET_KEEP_HOOK PREFIX(dfltcc_reset_inflate_state)
  19. #define INFLATE_PRIME_HOOK(strm, bits, value) \
  20. do { if (PREFIX(dfltcc_inflate_disable)((strm))) return Z_STREAM_ERROR; } while (0)
  21. #define INFLATE_TYPEDO_HOOK(strm, flush) \
  22. if (PREFIX(dfltcc_can_inflate)((strm))) { \
  23. dfltcc_inflate_action action; \
  24. \
  25. RESTORE(); \
  26. action = PREFIX(dfltcc_inflate)((strm), (flush), &ret); \
  27. LOAD(); \
  28. if (action == DFLTCC_INFLATE_CONTINUE) \
  29. break; \
  30. else if (action == DFLTCC_INFLATE_BREAK) \
  31. goto inf_leave; \
  32. }
  33. #define INFLATE_NEED_CHECKSUM(strm) (!PREFIX(dfltcc_can_inflate)((strm)))
  34. #define INFLATE_NEED_UPDATEWINDOW(strm) (!PREFIX(dfltcc_can_inflate)((strm)))
  35. #define INFLATE_MARK_HOOK(strm) \
  36. do { \
  37. if (PREFIX(dfltcc_was_inflate_used)((strm))) return -(1L << 16); \
  38. } while (0)
  39. #define INFLATE_SYNC_POINT_HOOK(strm) \
  40. do { \
  41. if (PREFIX(dfltcc_was_inflate_used)((strm))) return Z_STREAM_ERROR; \
  42. } while (0)
  43. #define INFLATE_SET_DICTIONARY_HOOK(strm, dict, dict_len) \
  44. do { \
  45. if (PREFIX(dfltcc_can_inflate)((strm))) \
  46. return PREFIX(dfltcc_inflate_set_dictionary)((strm), (dict), (dict_len)); \
  47. } while (0)
  48. #define INFLATE_GET_DICTIONARY_HOOK(strm, dict, dict_len) \
  49. do { \
  50. if (PREFIX(dfltcc_can_inflate)((strm))) \
  51. return PREFIX(dfltcc_inflate_get_dictionary)((strm), (dict), (dict_len)); \
  52. } while (0)
  53. #define INFLATE_ADJUST_WINDOW_SIZE(n) MAX(n, HB_SIZE)
  54. #endif