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| author | Juan J. Martinez <jjm@usebox.net> | 2022-09-06 07:37:20 +0100 |
|---|---|---|
| committer | Juan J. Martinez <jjm@usebox.net> | 2022-09-06 07:37:20 +0100 |
| commit | 30bf0f51335e87812ffeb54e9437f0b6a1514d67 (patch) | |
| tree | 9c85a2de53b4da69fcfaa84488cc6c12ebd3e5d0 /tools/rasm/lzsa-master/src/lib.h | |
| parent | d8990284057e6401d0374f439df51879595d804d (diff) | |
| download | ubox-msx-lib-30bf0f51335e87812ffeb54e9437f0b6a1514d67.tar.gz ubox-msx-lib-30bf0f51335e87812ffeb54e9437f0b6a1514d67.zip | |
Updated rasm to 1.7
Diffstat (limited to 'tools/rasm/lzsa-master/src/lib.h')
| -rwxr-xr-x | tools/rasm/lzsa-master/src/lib.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/tools/rasm/lzsa-master/src/lib.h b/tools/rasm/lzsa-master/src/lib.h new file mode 100755 index 0000000..2520b13 --- /dev/null +++ b/tools/rasm/lzsa-master/src/lib.h @@ -0,0 +1,95 @@ +/*
+ * lib.h - LZSA library definitions
+ *
+ * Copyright (C) 2019 Emmanuel Marty
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+/*
+ * Uses the libdivsufsort library Copyright (c) 2003-2008 Yuta Mori
+ *
+ * Inspired by LZ4 by Yann Collet. https://github.com/lz4/lz4
+ * With help, ideas, optimizations and speed measurements by spke <zxintrospec@gmail.com>
+ * With ideas from Lizard by Przemyslaw Skibinski and Yann Collet. https://github.com/inikep/lizard
+ * Also with ideas from smallz4 by Stephan Brumme. https://create.stephan-brumme.com/smallz4/
+ *
+ */
+
+#ifndef _LIB_H
+#define _LIB_H
+
+#include "stream.h"
+#include "dictionary.h"
+#include "frame.h"
+#include "format.h"
+#include "shrink_context.h"
+#include "shrink_streaming.h"
+#include "shrink_inmem.h"
+#include "expand_context.h"
+#include "expand_streaming.h"
+#include "expand_inmem.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** High level status for compression and decompression */
+typedef enum _lzsa_status_t {
+ LZSA_OK = 0, /**< Success */
+ LZSA_ERROR_SRC, /**< Error reading input */
+ LZSA_ERROR_DST, /**< Error reading output */
+ LZSA_ERROR_DICTIONARY, /**< Error reading dictionary */
+ LZSA_ERROR_MEMORY, /**< Out of memory */
+
+ /* Compression-specific status codes */
+ LZSA_ERROR_COMPRESSION, /**< Internal compression error */
+ LZSA_ERROR_RAW_TOOLARGE, /**< Input is too large to be compressed to a raw block */
+ LZSA_ERROR_RAW_UNCOMPRESSED, /**< Input is incompressible and raw blocks don't support uncompressed data */
+
+ /* Decompression-specific status codes */
+ LZSA_ERROR_FORMAT, /**< Invalid input format or magic number when decompressing */
+ LZSA_ERROR_DECOMPRESSION /**< Internal decompression error */
+} lzsa_status_t;
+
+/* Compression flags */
+#define LZSA_FLAG_FAVOR_RATIO (1<<0) /**< 1 to compress with the best ratio, 0 to trade some compression ratio for extra decompression speed */
+#define LZSA_FLAG_RAW_BLOCK (1<<1) /**< 1 to emit raw block */
+#define LZSA_FLAG_RAW_BACKWARD (1<<2) /**< 1 to compress or decompress raw block backward */
+
+/**
+ * Reverse bytes in the specified buffer
+ *
+ * @param pBuffer pointer to buffer whose contents are to be reversed
+ * @param nBufferSize size of buffer in bytes
+ */
+static inline void lzsa_reverse_buffer(unsigned char *pBuffer, const int nBufferSize) {
+ int nMidPoint = nBufferSize / 2;
+ int i, j;
+
+ for (i = 0, j = nBufferSize - 1; i < nMidPoint; i++, j--) {
+ unsigned char c = pBuffer[i];
+ pBuffer[i] = pBuffer[j];
+ pBuffer[j] = c;
+ }
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LIB_H */
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