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-rw-r--r--lib/zlib_dfltcc/dfltcc.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/lib/zlib_dfltcc/dfltcc.h b/lib/zlib_dfltcc/dfltcc.h
index 18fed7a444bc..4782c92bb2ff 100644
--- a/lib/zlib_dfltcc/dfltcc.h
+++ b/lib/zlib_dfltcc/dfltcc.h
@@ -104,6 +104,14 @@ int dfltcc_deflate(z_streamp strm,
int flush,
block_state *result);
void dfltcc_reset(z_streamp strm, uInt size);
+int dfltcc_can_inflate(z_streamp strm);
+typedef enum {
+ DFLTCC_INFLATE_CONTINUE,
+ DFLTCC_INFLATE_BREAK,
+ DFLTCC_INFLATE_SOFTWARE,
+} dfltcc_inflate_action;
+dfltcc_inflate_action dfltcc_inflate(z_streamp strm,
+ int flush, int *ret);
#define DEFLATE_RESET_HOOK(strm) \
dfltcc_reset((strm), sizeof(deflate_state))
@@ -112,4 +120,24 @@ void dfltcc_reset(z_streamp strm, uInt size);
#define DEFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_deflate((strm)))
+#define INFLATE_RESET_HOOK(strm) \
+ dfltcc_reset((strm), sizeof(struct inflate_state))
+
+#define INFLATE_TYPEDO_HOOK(strm, flush) \
+ if (dfltcc_can_inflate((strm))) { \
+ dfltcc_inflate_action action; \
+\
+ RESTORE(); \
+ action = dfltcc_inflate((strm), (flush), &ret); \
+ LOAD(); \
+ if (action == DFLTCC_INFLATE_CONTINUE) \
+ break; \
+ else if (action == DFLTCC_INFLATE_BREAK) \
+ goto inf_leave; \
+ }
+
+#define INFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_inflate((strm)))
+
+#define INFLATE_NEED_UPDATEWINDOW(strm) (!dfltcc_can_inflate((strm)))
+
#endif /* DFLTCC_H */