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36 lines
1.2 KiB
36 lines
1.2 KiB
// ZECK.H Copyright (C) Microsoft Corporation 1990-1995, All Rights reserved.
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#include <pshpack1.h>
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// This structure is passed to the compression routine to specify ranges
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// in which to suppress compression:
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typedef struct struct_suppresszeck SUPPRESSZECK, *QSUPPRESSZECK;
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// REVIEW: can we switch to DWORDs?
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struct struct_suppresszeck {
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PBYTE rbSuppress; // beginning of range for suppression.
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WORD cbSuppress; // number of bytes to suppress compression.
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PBYTE rbNewpos; // pointer into dest buffer where suppressed range
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// ended up after compression (an OUT param value).
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WORD iBitdex; // offset from rbNewpos of zeck code bits, used when
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// back patching.
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QSUPPRESSZECK next; // next suppression range in this list.
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};
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#define BITDEX_NONE (-1) // indicates no compression took place, and
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// backpatch should not adjust for the
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// code bits.
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#if defined( __cplusplus )
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extern "C" {
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#endif
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int STDCALL LcbCompressZeck(PBYTE pbSrc, PBYTE pbDest, int cbSrc,
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int cbDest, int * qulSrcUsed = NULL, QSUPPRESSZECK qSuppress = NULL);
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int STDCALL LcbUncompressZeck(PBYTE pbSrc, PBYTE pbDest, int cbSrc);
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#if defined( __cplusplus )
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}
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#endif
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