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50 lines
1.6 KiB
50 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __LZO_H__ |
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#define __LZO_H__ |
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/* |
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* LZO Public Kernel Interface |
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* A mini subset of the LZO real-time data compression library |
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* |
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* Copyright (C) 1996-2012 Markus F.X.J. Oberhumer <[email protected]> |
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* |
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* The full LZO package can be found at: |
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* http://www.oberhumer.com/opensource/lzo/ |
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* |
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* Changed for Linux kernel use by: |
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* Nitin Gupta <[email protected]> |
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* Richard Purdie <[email protected]> |
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*/ |
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#define LZO1X_1_MEM_COMPRESS (8192 * sizeof(unsigned short)) |
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#define LZO1X_MEM_COMPRESS LZO1X_1_MEM_COMPRESS |
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#define lzo1x_worst_compress(x) ((x) + ((x) / 16) + 64 + 3 + 2) |
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/* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */ |
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int lzo1x_1_compress(const unsigned char *src, size_t src_len, |
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unsigned char *dst, size_t *dst_len, void *wrkmem); |
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/* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */ |
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int lzorle1x_1_compress(const unsigned char *src, size_t src_len, |
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unsigned char *dst, size_t *dst_len, void *wrkmem); |
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/* safe decompression with overrun testing */ |
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int lzo1x_decompress_safe(const unsigned char *src, size_t src_len, |
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unsigned char *dst, size_t *dst_len); |
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/* |
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* Return values (< 0 = Error) |
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*/ |
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#define LZO_E_OK 0 |
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#define LZO_E_ERROR (-1) |
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#define LZO_E_OUT_OF_MEMORY (-2) |
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#define LZO_E_NOT_COMPRESSIBLE (-3) |
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#define LZO_E_INPUT_OVERRUN (-4) |
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#define LZO_E_OUTPUT_OVERRUN (-5) |
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#define LZO_E_LOOKBEHIND_OVERRUN (-6) |
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#define LZO_E_EOF_NOT_FOUND (-7) |
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#define LZO_E_INPUT_NOT_CONSUMED (-8) |
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#define LZO_E_NOT_YET_IMPLEMENTED (-9) |
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#define LZO_E_INVALID_ARGUMENT (-10) |
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#endif
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