1 // SPDX-License-Identifier: Zlib 1 // SPDX-License-Identifier: Zlib
2 #ifndef DFLTCC_INFLATE_H 2 #ifndef DFLTCC_INFLATE_H
3 #define DFLTCC_INFLATE_H 3 #define DFLTCC_INFLATE_H
4 4
5 #include "dfltcc.h" 5 #include "dfltcc.h"
6 6
7 /* External functions */ 7 /* External functions */
8 void dfltcc_reset_inflate_state(z_streamp strm 8 void dfltcc_reset_inflate_state(z_streamp strm);
9 int dfltcc_can_inflate(z_streamp strm); 9 int dfltcc_can_inflate(z_streamp strm);
10 typedef enum { 10 typedef enum {
11 DFLTCC_INFLATE_CONTINUE, 11 DFLTCC_INFLATE_CONTINUE,
12 DFLTCC_INFLATE_BREAK, 12 DFLTCC_INFLATE_BREAK,
13 DFLTCC_INFLATE_SOFTWARE, 13 DFLTCC_INFLATE_SOFTWARE,
14 } dfltcc_inflate_action; 14 } dfltcc_inflate_action;
15 dfltcc_inflate_action dfltcc_inflate(z_streamp 15 dfltcc_inflate_action dfltcc_inflate(z_streamp strm,
16 int flush 16 int flush, int *ret);
17 #define INFLATE_RESET_HOOK(strm) \ 17 #define INFLATE_RESET_HOOK(strm) \
18 dfltcc_reset_inflate_state((strm)) 18 dfltcc_reset_inflate_state((strm))
19 19
20 #define INFLATE_TYPEDO_HOOK(strm, flush) \ 20 #define INFLATE_TYPEDO_HOOK(strm, flush) \
21 if (dfltcc_can_inflate((strm))) { \ 21 if (dfltcc_can_inflate((strm))) { \
22 dfltcc_inflate_action action; \ 22 dfltcc_inflate_action action; \
23 \ 23 \
24 RESTORE(); \ 24 RESTORE(); \
25 action = dfltcc_inflate((strm), (flush 25 action = dfltcc_inflate((strm), (flush), &ret); \
26 LOAD(); \ 26 LOAD(); \
27 if (action == DFLTCC_INFLATE_CONTINUE) 27 if (action == DFLTCC_INFLATE_CONTINUE) \
28 break; \ 28 break; \
29 else if (action == DFLTCC_INFLATE_BREA 29 else if (action == DFLTCC_INFLATE_BREAK) \
30 goto inf_leave; \ 30 goto inf_leave; \
31 } 31 }
32 32
33 #define INFLATE_NEED_CHECKSUM(strm) (!dfltcc_c 33 #define INFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_inflate((strm)))
34 34
35 #define INFLATE_NEED_UPDATEWINDOW(strm) (!dflt 35 #define INFLATE_NEED_UPDATEWINDOW(strm) (!dfltcc_can_inflate((strm)))
36 36
37 #endif /* DFLTCC_DEFLATE_H */ 37 #endif /* DFLTCC_DEFLATE_H */
38 38
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