Merge commit '37aad93a58efba6c340e13aa1d83ddf2df762b3d'

libretro-common/formats/libchdr/libchdr_bitstream.c

@@ -122,4 +122,3 @@ uint32_t bitstream_flush(struct bitstream* bitstream)
 	bitstream->bits = bitstream->buffer = 0;
 	return bitstream->doffset;
 }
-

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];
+};
+
+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__ */

libretro-common/include/libchdr/lzma.h

@@ -0,0 +1,72 @@
+/* license:BSD-3-Clause
+ * copyright-holders:Aaron Giles
+ ***************************************************************************
+
+    lzma.h
+
+    LZMA compression wrappers
+
+***************************************************************************/
+
+#pragma once
+
+#ifndef __LIBCHDR_LZMA_H__
+#define __LIBCHDR_LZMA_H__
+
+#include <stdint.h>
+
+#include <LzmaEnc.h>
+#include <LzmaDec.h>
+
+#include <libchdr/libchdr_zlib.h>
+
+/* codec-private data for the LZMA codec */
+#define MAX_LZMA_ALLOCS 64
+
+typedef struct _lzma_allocator lzma_allocator;
+struct _lzma_allocator
+{
+	void *(*Alloc)(void *p, size_t size);
+ 	void (*Free)(void *p, void *address); /* address can be 0 */
+	void (*FreeSz)(void *p, void *address, size_t size); /* address can be 0 */
+	uint32_t*	allocptr[MAX_LZMA_ALLOCS];
+};
+
+typedef struct _lzma_codec_data lzma_codec_data;
+struct _lzma_codec_data
+{
+	CLzmaDec		decoder;
+	lzma_allocator	allocator;
+};
+
+/* codec-private data for the CDLZ codec */
+typedef struct _cdlz_codec_data cdlz_codec_data;
+struct _cdlz_codec_data {
+	/* internal state */
+	lzma_codec_data		base_decompressor;
+#ifdef WANT_SUBCODE
+	zlib_codec_data		subcode_decompressor;
+#endif
+	uint8_t*			buffer;
+};
+
+chd_error lzma_codec_init(void* codec, uint32_t hunkbytes);
+
+void lzma_codec_free(void* codec);
+
+/*-------------------------------------------------
+ *  decompress - decompress data using the LZMA
+ *  codec
+ *-------------------------------------------------
+ */
+
+chd_error lzma_codec_decompress(void* codec, const uint8_t *src,
+      uint32_t complen, uint8_t *dest, uint32_t destlen);
+
+chd_error cdlz_codec_init(void* codec, uint32_t hunkbytes);
+
+void cdlz_codec_free(void* codec);
+
+chd_error cdlz_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen);
+
+#endif /* __LIBCHDR_LZMA_H__ */