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cd998bdf6f
git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/TwlIPL/trunk@1911 b08762b0-b915-fc4b-9d8c-17b2551a87ff
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/*---------------------------------------------------------------------------*
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Project: TwlSDK - tools - compstatic
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File: compress.h
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Copyright 2003 Nintendo. All rights reserved.
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These coded instructions, statements, and computer programs contain
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proprietary information of Nintendo of America Inc. and/or Nintendo
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Company Ltd., and are protected by Federal copyright law. They may
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not be disclosed to third parties or copied or duplicated in any form,
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in whole or in part, without the prior written consent of Nintendo.
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$Date:: $
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$Rev$
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$Author$
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*---------------------------------------------------------------------------*/
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#ifndef COMPRESS_H__
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#define COMPRESS_H__
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#include "common.h"
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//---------------------------------------------------------
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typedef struct
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{
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u32 bufferTop:24; // 圧縮領域終端 - 先頭
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u32 compressBottom:8; // 圧縮領域終端 - データ終端
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u32 originalBottom; // 展開領域終端 - 圧縮領域終端
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}
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CompFooter;
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//---------------------------------------------------------
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int Compress(u8 *buffer, int buffer_size);
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#define COMPRESS_LARGER_ORIGINAL (-1)
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#define COMPRESS_FATAL_ERROR (-2)
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// loader area
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#define LOADER_SIZE_ARM9 (16*1024)
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#define LOADER_SIZE_ARM7 ( 1*1024)
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// LZ compress parameters
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#define LZ_BIT_INDEX 12 // 12bit offset
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#define LZ_BIT_LENGTH 4 // 4bit length
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#define LZ_MAX_INDEX (1 << LZ_BIT_INDEX)
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#define LZ_MAX_LENGTH (1 << LZ_BIT_LENGTH)
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#define LZ_MIN_COPY 3
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#define LZ_MAX_COPY (LZ_MIN_COPY+LZ_MAX_LENGTH-1)
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#define LZ_MAX_DIC_LENGTH (LZ_MIN_COPY+LZ_MAX_INDEX-1)
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// macro
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#define MIN(a,b) ((a)<(b)?(a):(b))
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#define ROUNDUP4(x) (((x)+3)&~3)
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#endif
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