git subrepo clone https://github.com/libretro/libretro-common.git deps/libretro-common

[pcsx_rearmed.git] / deps / libretro-common / include / libchdr / libchdr_zlib.h

diff --git a/deps/libretro-common/include/libchdr/libchdr_zlib.h b/deps/libretro-common/include/libchdr/libchdr_zlib.h
new file mode 100644 (file)
index 0000000..86544d6
--- /dev/null
+++ b/deps/libretro-common/include/libchdr/libchdr_zlib.h
@@ -0,0 +1,69 @@
+/* license:BSD-3-Clause
+ * copyright-holders:Aaron Giles
+ ***************************************************************************
+
+    libchr_zlib.h
+
+    Zlib compression wrappers
+
+***************************************************************************/
+
+#pragma once
+
+#ifndef __LIBCHDR_ZLIB_H__
+#define __LIBCHDR_ZLIB_H__
+
+#include <stdint.h>
+
+#include <zlib.h>
+#include "coretypes.h"
+#include "chd.h"
+
+#define MAX_ZLIB_ALLOCS                                64
+
+/* codec-private data for the ZLIB codec */
+
+typedef struct _zlib_allocator zlib_allocator;
+struct _zlib_allocator
+{
+       UINT32 *                                allocptr[MAX_ZLIB_ALLOCS];
+       UINT32 *                                allocptr2[MAX_ZLIB_ALLOCS];
+};
+
+typedef struct _zlib_codec_data zlib_codec_data;
+struct _zlib_codec_data
+{
+       z_stream                                inflater;
+       zlib_allocator                  allocator;
+};
+
+/* codec-private data for the CDZL codec */
+typedef struct _cdzl_codec_data cdzl_codec_data;
+struct _cdzl_codec_data {
+       /* internal state */
+       zlib_codec_data         base_decompressor;
+#ifdef WANT_SUBCODE
+       zlib_codec_data         subcode_decompressor;
+#endif
+       uint8_t*                        buffer;
+};
+
+/* zlib compression codec */
+chd_error zlib_codec_init(void *codec, uint32_t hunkbytes);
+
+void zlib_codec_free(void *codec);
+
+chd_error zlib_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen);
+
+voidpf zlib_fast_alloc(voidpf opaque, uInt items, uInt size);
+
+void zlib_fast_free(voidpf opaque, voidpf address);
+
+/* cdzl compression codec */
+chd_error cdzl_codec_init(void* codec, uint32_t hunkbytes);
+
+void cdzl_codec_free(void* codec);
+
+chd_error cdzl_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen);
+
+#endif /* __LIBCHDR_ZLIB_H__ */