mirror of https://github.com/libAthena/athena.git
parent
9c64071bc0
commit
5552a24628
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@ -28,6 +28,9 @@ namespace Compression
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Int32 decompressZlib(Uint8* src, Uint32 srcLen, Uint8* dst, Uint32 dstLen);
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Int32 decompressZlib(Uint8* src, Uint32 srcLen, Uint8* dst, Uint32 dstLen);
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Int32 compressZlib(const Uint8* src, Uint32 srcLen, Uint8* dst, Uint32 dstLen);
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Int32 compressZlib(const Uint8* src, Uint32 srcLen, Uint8* dst, Uint32 dstLen);
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// lzo compression
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Int32 decompressLZO(Uint8* source, Int32 sourceSize, Uint8* dest, Int32& dstSize);
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// Yaz0 encoding
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// Yaz0 encoding
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Uint32 yaz0Decode(Uint8* src, Uint8* dst, Uint32 uncompressedSize);
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Uint32 yaz0Decode(Uint8* src, Uint8* dst, Uint32 uncompressedSize);
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Uint32 yaz0Encode(Uint8* src, Uint32 srcSize, Uint8* data);
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Uint32 yaz0Encode(Uint8* src, Uint32 srcSize, Uint8* data);
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@ -0,0 +1,46 @@
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/*
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* LZO 1x decompression
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* copyright (c) 2006 Reimar Doeffinger
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _LZO_H
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#define LZO_H
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#include "Types.hpp"
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#define LZO_INPUT_DEPLETED 1
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#define LZO_OUTPUT_FULL 2
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#define LZO_INVALID_BACKPTR 4
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#define LZO_ERROR 8
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#define LZO_INPUT_PADDING 4
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#define LZO_OUTPUT_PADDING 12
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typedef unsigned char uint8_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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int lzo1x_decode(Uint8 *out, Int32 *outlen, Uint8 *in, Int32 *inlen);
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#ifdef __cplusplus
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}
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#endif
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#endif
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@ -0,0 +1,99 @@
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INCLUDEPATH += $$PWD/include
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QMAKE_CXXFLAGS = -std=c++0x
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unix:LIBS += -lz
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win32:LIBS += -lzlib
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HEADERS += \
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$$PWD/include/utility.hpp \
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$$PWD/include/utf8.h \
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$$PWD/include/utf8/unchecked.h \
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$$PWD/include/utf8/core.h \
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$$PWD/include/utf8/checked.h \
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$$PWD/include/Types.hpp \
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$$PWD/include/TextStream.hpp \
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$$PWD/include/Stream.hpp \
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$$PWD/include/Mainpage.hpp \
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$$PWD/include/InvalidOperationException.hpp \
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$$PWD/include/IOException.hpp \
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$$PWD/include/FileNotFoundException.hpp \
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$$PWD/include/Exception.hpp \
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$$PWD/include/BinaryWriter.hpp \
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$$PWD/include/BinaryReader.hpp \
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$$PWD/include/WiiBanner.hpp \
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$$PWD/include/WiiFile.hpp \
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$$PWD/include/WiiSave.hpp \
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$$PWD/include/WiiSaveReader.hpp \
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$$PWD/include/WiiSaveWriter.hpp \
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$$PWD/include/aes.h \
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$$PWD/include/bn.h \
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$$PWD/include/ec.h \
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$$PWD/include/md5.h \
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$$PWD/include/sha1.h \
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$$PWD/include/ALTTPStructs.hpp \
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$$PWD/include/ALTTPQuest.hpp \
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$$PWD/include/ALTTPFileWriter.hpp \
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$$PWD/include/ALTTPFileReader.hpp \
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$$PWD/include/ALTTPFile.hpp \
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$$PWD/include/ALTTPEnums.hpp \
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$$PWD/include/MCFileReader.hpp \
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$$PWD/include/MCFile.hpp \
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$$PWD/include/MCFileWriter.hpp \
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$$PWD/include/ZQuestFileWriter.hpp \
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$$PWD/include/ZQuestFileReader.hpp \
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$$PWD/include/Compression.hpp \
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$$PWD/include/lzo.h \
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$$PWD/include/WiiImage.hpp \
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$$PWD/include/ZQuestFile.hpp \
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$$PWD/include/Checksums.hpp \
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$$PWD/include/SkywardSwordFile.hpp \
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$$PWD/include/SkywardSwordFileReader.hpp \
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$$PWD/include/SkywardSwordFileWriter.hpp \
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$$PWD/include/SkywardSwordQuest.hpp \
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$$PWD/include/Sprite.hpp \
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$$PWD/include/SpriteFile.hpp \
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$$PWD/include/SpriteFileReader.hpp \
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$$PWD/include/SpriteFileWriter.hpp \
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$$PWD/include/SpriteFrame.hpp \
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$$PWD/include/SpritePart.hpp
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SOURCES += \
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$$PWD/src/utility.cpp \
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$$PWD/src/TextStream.cpp \
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$$PWD/src/Stream.cpp \
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$$PWD/src/BinaryWriter.cpp \
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$$PWD/src/BinaryReader.cpp \
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$$PWD/src/WiiBanner.cpp \
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$$PWD/src/WiiFile.cpp \
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$$PWD/src/WiiSave.cpp \
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$$PWD/src/WiiSaveReader.cpp \
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$$PWD/src/WiiSaveWriter.cpp \
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$$PWD/src/aes.c \
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$$PWD/src/bn.cpp \
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$$PWD/src/ec.cpp \
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$$PWD/src/md5.cpp \
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$$PWD/src/sha1.cpp \
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$$PWD/src/ALTTPQuest.cpp \
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$$PWD/src/ALTTPFileWriter.cpp \
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$$PWD/src/ALTTPFileReader.cpp \
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$$PWD/src/ALTTPFile.cpp \
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$$PWD/src/MCFileReader.cpp \
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$$PWD/src/MCFile.cpp \
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$$PWD/src/MCFileWriter.cpp \
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$$PWD/src/ZQuestFileWriter.cpp \
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$$PWD/src/ZQuestFileReader.cpp \
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$$PWD/src/Compression.cpp \
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$$PWD/src/lzo.c \
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$$PWD/src/WiiImage.cpp \
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$$PWD/src/ZQuestFile.cpp \
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$$PWD/src/Checksums.cpp \
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$$PWD/src/SkywardSwordFile.cpp \
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$$PWD/src/SkywardSwordFileReader.cpp \
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$$PWD/src/SkywardSwordFileWriter.cpp \
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$$PWD/src/SkywardSwordQuest.cpp \
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$$PWD/src/Sprite.cpp \
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$$PWD/src/SpriteFile.cpp \
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$$PWD/src/SpriteFileReader.cpp \
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$$PWD/src/SpriteFileWriter.cpp \
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$$PWD/src/SpriteFrame.cpp \
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$$PWD/src/SpritePart.cpp
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@ -15,8 +15,8 @@
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#include "Compression.hpp"
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#include "Compression.hpp"
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#include "Exception.hpp"
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#include "Exception.hpp"
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#include "lzo.h"
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#include <iostream>
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#include <iostream>
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#include <zlib.h>
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#include <zlib.h>
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namespace zelda
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namespace zelda
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@ -103,6 +103,13 @@ Int32 compressZlib(const Uint8 *src, Uint32 srcLen, Uint8 *dst, Uint32 dstLen)
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return ret;
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return ret;
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}
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}
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Int32 decompressLZO(Uint8* source, Int32 sourceSize, Uint8* dest, Int32& dstSize)
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{
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int size = dstSize;
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int result = lzo1x_decode(dest, &size, source, &sourceSize);
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dstSize = size;
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return result;
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}
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//src points to the yaz0 source data (to the "real" source data, not at the header!)
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//src points to the yaz0 source data (to the "real" source data, not at the header!)
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//dst points to a buffer uncompressedSize bytes large (you get uncompressedSize from
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//dst points to a buffer uncompressedSize bytes large (you get uncompressedSize from
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@ -317,6 +324,8 @@ Uint32 simpleEnc(Uint8* src, Int32 size, Int32 pos, Uint32 *pMatchPos)
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return numBytes;
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return numBytes;
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}
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}
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} // Compression
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} // Compression
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} // io
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} // io
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} // zelda
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} // zelda
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@ -0,0 +1,225 @@
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/*
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* LZO 1x decompression
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* Copyright (c) 2006 Reimar Doeffinger
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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//! avoid e.g. MPlayers fast_memcpy, it slows things down here
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#undef memcpy
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#include <string.h>
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#include "lzo.h"
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//! define if we may write up to 12 bytes beyond the output buffer
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//#define OUTBUF_PADDED 1
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//! define if we may read up to 4 bytes beyond the input buffer
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//#define INBUF_PADDED 1
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typedef struct LZOContext {
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Uint8 *in, *in_end;
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Uint8 *out_start, *out, *out_end;
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int error;
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} LZOContext;
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/**
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* \brief read one byte from input buffer, avoiding overrun
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* \return byte read
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*/
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static int get_byte(LZOContext *c) {
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if (c->in < c->in_end)
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return *c->in++;
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c->error |= LZO_INPUT_DEPLETED;
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return 1;
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}
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/**
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* \brief decode a length value in the coding used by lzo
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* \param x previous byte value
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* \param mask bits used from x
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* \return decoded length value
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*/
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static int get_len(LZOContext *c, int x, int mask) {
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int cnt = x & mask;
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if (!cnt) {
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while (!(x = get_byte(c))) cnt += 255;
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cnt += mask + x;
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}
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return cnt;
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}
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/**
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* \brief copy bytes from input to output buffer with checking
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* \param cnt number of bytes to copy, must be > 0
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*/
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static void copy(LZOContext *c, int cnt) {
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register uint8_t *src = c->in;
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register uint8_t *dst = c->out;
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if (src + cnt > c->in_end) {
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cnt = c->in_end - src;
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c->error |= LZO_INPUT_DEPLETED;
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}
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if (dst + cnt > c->out_end) {
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cnt = c->out_end - dst;
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c->error |= LZO_OUTPUT_FULL;
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}
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#if defined(INBUF_PADDED) && defined(OUTBUF_PADDED)
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dst[0] = src[0];
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dst[1] = src[1];
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dst[2] = src[2];
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dst[3] = src[3];
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src += 4;
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dst += 4;
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cnt -= 4;
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if (cnt > 0)
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#endif
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memcpy(dst, src, cnt);
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c->in = src + cnt;
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c->out = dst + cnt;
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}
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/**
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* \brief copy previously decoded bytes to current position
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* \param back how many bytes back we start
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* \param cnt number of bytes to copy, must be > 0
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*
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* cnt > back is valid, this will copy the bytes we just copied,
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* thus creating a repeating pattern with a period length of back.
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*/
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static void copy_backptr(LZOContext *c, int back, int cnt) {
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register uint8_t *src = &c->out[-back];
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register uint8_t *dst = c->out;
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if (src < c->out_start) {
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c->error |= LZO_INVALID_BACKPTR;
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return;
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}
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if (dst + cnt > c->out_end) {
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cnt = c->out_end - dst;
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c->error |= LZO_OUTPUT_FULL;
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}
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if (back == 1) {
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memset(dst, *src, cnt);
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dst += cnt;
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} else {
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#ifdef OUTBUF_PADDED
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dst[0] = src[0];
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dst[1] = src[1];
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dst[2] = src[2];
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dst[3] = src[3];
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src += 4;
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dst += 4;
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cnt -= 4;
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if (cnt > 0) {
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dst[0] = src[0];
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dst[1] = src[1];
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dst[2] = src[2];
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dst[3] = src[3];
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dst[4] = src[4];
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dst[5] = src[5];
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dst[6] = src[6];
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dst[7] = src[7];
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src += 8;
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dst += 8;
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cnt -= 8;
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}
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#endif
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if (cnt > 0) {
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int blocklen = back;
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while (cnt > blocklen) {
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memcpy(dst, src, blocklen);
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dst += blocklen;
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cnt -= blocklen;
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blocklen <<= 1;
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}
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memcpy(dst, src, cnt);
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}
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dst += cnt;
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}
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c->out = dst;
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}
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/**
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* \brief decode LZO 1x compressed data
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* \param out output buffer
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* \param outlen size of output buffer, number of bytes left are returned here
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* \param in input buffer
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* \param inlen size of input buffer, number of bytes left are returned here
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* \return 0 on success, otherwise error flags, see lzo.h
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*
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* make sure all buffers are appropriately padded, in must provide
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* LZO_INPUT_PADDING, out must provide LZO_OUTPUT_PADDING additional bytes
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*/
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int lzo1x_decode(Uint8 *out, Int32 *outlen, Uint8 *in, Int32 *inlen) {
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enum {COPY, BACKPTR} state = COPY;
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Int32 x;
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LZOContext c;
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c.in = in;
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c.in_end = in + *inlen;
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c.out = c.out_start = out;
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||||||
|
c.out_end = out + * outlen;
|
||||||
|
c.error = 0;
|
||||||
|
x = get_byte(&c);
|
||||||
|
if (x > 17) {
|
||||||
|
copy(&c, x - 17);
|
||||||
|
x = get_byte(&c);
|
||||||
|
if (x < 16) c.error |= LZO_ERROR;
|
||||||
|
}
|
||||||
|
while (!c.error) {
|
||||||
|
int cnt, back;
|
||||||
|
if (x >> 4) {
|
||||||
|
if (x >> 6) {
|
||||||
|
cnt = (x >> 5) - 1;
|
||||||
|
back = (get_byte(&c) << 3) + ((x >> 2) & 7) + 1;
|
||||||
|
} else if (x >> 5) {
|
||||||
|
cnt = get_len(&c, x, 31);
|
||||||
|
x = get_byte(&c);
|
||||||
|
back = (get_byte(&c) << 6) + (x >> 2) + 1;
|
||||||
|
} else {
|
||||||
|
cnt = get_len(&c, x, 7);
|
||||||
|
back = (1 << 14) + ((x & 8) << 11);
|
||||||
|
x = get_byte(&c);
|
||||||
|
back += (get_byte(&c) << 6) + (x >> 2);
|
||||||
|
if (back == (1 << 14)) {
|
||||||
|
if (cnt != 1)
|
||||||
|
c.error |= LZO_ERROR;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else
|
||||||
|
switch (state) {
|
||||||
|
case COPY:
|
||||||
|
cnt = get_len(&c, x, 15);
|
||||||
|
copy(&c, cnt + 3);
|
||||||
|
x = get_byte(&c);
|
||||||
|
if (x >> 4)
|
||||||
|
continue;
|
||||||
|
cnt = 1;
|
||||||
|
back = (1 << 11) + (get_byte(&c) << 2) + (x >> 2) + 1;
|
||||||
|
break;
|
||||||
|
case BACKPTR:
|
||||||
|
cnt = 0;
|
||||||
|
back = (get_byte(&c) << 2) + (x >> 2) + 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
copy_backptr(&c, back, cnt + 2);
|
||||||
|
cnt = x & 3;
|
||||||
|
state = cnt ? BACKPTR : COPY;
|
||||||
|
if (cnt)
|
||||||
|
copy(&c, cnt);
|
||||||
|
x = get_byte(&c);
|
||||||
|
}
|
||||||
|
*inlen = c.in_end - c.in;
|
||||||
|
*outlen = c.out_end - c.out;
|
||||||
|
return c.error;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue