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Diffstat (limited to 'lib/zlib_dfltcc/dfltcc_inflate.h')
-rw-r--r--lib/zlib_dfltcc/dfltcc_inflate.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/zlib_dfltcc/dfltcc_inflate.h b/lib/zlib_dfltcc/dfltcc_inflate.h
new file mode 100644
index 000000000000..98d4bc42e526
--- /dev/null
+++ b/lib/zlib_dfltcc/dfltcc_inflate.h
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: Zlib
+#ifndef DFLTCC_INFLATE_H
+#define DFLTCC_INFLATE_H
+
+#include "dfltcc.h"
+
+/* External functions */
+void dfltcc_reset_inflate_state(z_streamp strm);
+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 INFLATE_RESET_HOOK(strm) \
+ dfltcc_reset_inflate_state((strm))
+
+#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_DEFLATE_H */