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39 lines
1.0 KiB
39 lines
1.0 KiB
/* infutil.h -- types and macros common to blocks and codes |
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* Copyright (C) 1995-1998 Mark Adler |
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* For conditions of distribution and use, see copyright notice in zlib.h |
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*/ |
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/* WARNING: this file should *not* be used by applications. It is |
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part of the implementation of the compression library and is |
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subject to change. Applications should only use zlib.h. |
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*/ |
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#ifndef _INFUTIL_H |
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#define _INFUTIL_H |
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#include <linux/zlib.h> |
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#ifdef CONFIG_ZLIB_DFLTCC |
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#include "../zlib_dfltcc/dfltcc.h" |
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#include <asm/page.h> |
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#endif |
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/* memory allocation for inflation */ |
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struct inflate_workspace { |
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struct inflate_state inflate_state; |
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#ifdef CONFIG_ZLIB_DFLTCC |
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struct dfltcc_state dfltcc_state; |
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unsigned char working_window[(1 << MAX_WBITS) + PAGE_SIZE]; |
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#else |
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unsigned char working_window[(1 << MAX_WBITS)]; |
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#endif |
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}; |
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#ifdef CONFIG_ZLIB_DFLTCC |
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/* dfltcc_state must be doubleword aligned for DFLTCC call */ |
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static_assert(offsetof(struct inflate_workspace, dfltcc_state) % 8 == 0); |
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#endif |
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#define WS(strm) ((struct inflate_workspace *)(strm->workspace)) |
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#endif
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