mirror of
https://github.com/martravi/wiiqt6.git
synced 2024-11-22 21:29:15 +01:00
452 lines
9.9 KiB
C++
452 lines
9.9 KiB
C++
#include "ash.h"
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//this is large enough for all the system menu ash0 files, and thats all i need it for
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#define BUFFER_SIZE 0x600000
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bool IsAshCompressed( const QByteArray ba )
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{
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return ba.startsWith( "ASH" );
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}
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QByteArray DecryptAsh( const QByteArray ba )
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{
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//qDebug() << "DecryptAsh()";
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if( !IsAshCompressed( ba ) )
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{
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qWarning() << "DecryptAsh -> wrong magic";
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return QByteArray();
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}
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quint32 r[ 32 ];
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quint32 count=0;
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quint32 t;
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quint64 memAddr = (quint64)( ba.data() );//in
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r[4] = 0x8000000;
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qint64 inDiff = memAddr - r[ 4 ];//difference in r[ 4 ] and the real address. hack to support higher memory addresses than crediar's version
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r[5] = 0x415348;
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r[6] = 0x415348;
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//Rvl_decode_ash:
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r[5] = qFromBigEndian(*(quint32 *)( r[4] + inDiff + 4 ) );
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r[5] = r[5] & 0x00FFFFFF;
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quint32 size = r[5];
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//qDebug() << "Decompressed size:" << Qt::hex << size;
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if( size > BUFFER_SIZE )
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{
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qWarning() << "DecryptAsh(): this file was built with a buffer to small to deal with this archive. Build it with a bigger one and try again."
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<< Qt::hex << size << ">" << BUFFER_SIZE;
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return QByteArray();
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}
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QByteArray crap2( size, '\0' );
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if( (quint32)crap2.size() != size )
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{
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qWarning() << "DecryptAsh(): out of memory 1";
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return QByteArray();
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}
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//char crap2[ size ];
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quint64 memAddr2 = (quint64)( crap2.data() );//outbuf
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r[3] = 0x9000000;
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qint64 outDiff = memAddr2 - r[ 3 ];//difference in r[ 3 ] and the real address
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quint32 o = r[ 3 ];
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r[24] = 0x10;
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r[28] = qFromBigEndian(*(quint32 *)(r[4]+8 + inDiff));
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r[25] = 0;
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r[29] = 0;
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r[26] = qFromBigEndian(*(quint32 *)(r[4]+0xC + inDiff));
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r[30] = qFromBigEndian(*(quint32 *)(r[4]+r[28] + inDiff));
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r[28] = r[28] + 4;
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//r[8] = 0x8108<<16;
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//HACK, pointer to RAM
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QByteArray crap3( BUFFER_SIZE, '\0' );
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if( crap3.size() != BUFFER_SIZE )
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{
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qWarning() << "DecryptAsh(): out of memory 1";
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return QByteArray();
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}
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//char crap3[ 0x100000 ];
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quint64 memAddr3 = (quint64)( crap3.data() );//outbuf
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r[8] = 0x84000000;
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qint64 outDiff2 = memAddr3 - r[ 8 ];//difference in r[ 3 ] and the real address
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memset( (void*)( r[8] + outDiff2 ), 0, 0x100000 );
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r[8] = r[8];
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r[9] = r[8] + 0x07FE;
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r[10] = r[9] + 0x07FE;
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r[11] = r[10] + 0x1FFE;
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r[31] = r[11] + 0x1FFE;
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r[23] = 0x200;
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r[22] = 0x200;
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r[27] = 0;
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loc_81332124:
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if( r[25] != 0x1F )
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goto loc_81332140;
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r[0] = r[26] >> 31;
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r[26]= qFromBigEndian(*(quint32 *)(r[4] + r[24] + inDiff));
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r[25]= 0;
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r[24]= r[24] + 4;
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goto loc_8133214C;
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loc_81332140:
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r[0] = r[26] >> 31;
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r[25]= r[25] + 1;
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r[26]= r[26] << 1;
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loc_8133214C:
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if( r[0] == 0 )
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goto loc_81332174;
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r[0] = r[23] | 0x8000;
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*(quint16 *)(r[31] + outDiff2) = (quint16)qFromBigEndian((quint16)r[0]);
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r[0] = r[23] | 0x4000;
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*(quint16 *)(r[31]+2 + outDiff2) = (quint16)qFromBigEndian((quint16)r[0]);
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r[31] = r[31] + 4;
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r[27] = r[27] + 2;
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r[23] = r[23] + 1;
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r[22] = r[22] + 1;
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goto loc_81332124;
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loc_81332174:
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r[12] = 9;
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r[21] = r[25] + r[12];
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t = r[21];
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if( r[21] > 0x20 )
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goto loc_813321AC;
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r[21] = (~(r[12] - 0x20))+1;
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r[6] = r[26] >> r[21];
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if( t == 0x20 )
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goto loc_8133219C;
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r[26] = r[26] << r[12];
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r[25] = r[25] + r[12];
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goto loc_813321D0;
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loc_8133219C:
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r[26]= qFromBigEndian(*(quint32 *)(r[4] + r[24] + inDiff));
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r[25]= 0;
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r[24]= r[24] + 4;
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goto loc_813321D0;
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loc_813321AC:
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r[0] = (~(r[12] - 0x20))+1;
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r[6] = r[26] >> r[0];
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r[26]= qFromBigEndian(*(quint32 *)(r[4] + r[24] + inDiff));
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r[0] = (~(r[21] - 0x40))+1;
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r[24]= r[24] + 4;
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r[0] = r[26] >> r[0];
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r[6] = r[6] | r[0];
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r[25] = r[21] - 0x20;
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r[26] = r[26] << r[25];
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loc_813321D0:
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r[12]= (quint16)qFromBigEndian((quint16)(*(quint16 *)(( r[31] + outDiff2 ) - 2)));
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r[31] -= 2;
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r[27]= r[27] - 1;
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r[0] = r[12] & 0x8000;
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r[12]= (r[12] & 0x1FFF) << 1;
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if( r[0] == 0 )
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goto loc_813321F8;
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*(quint16 *)(r[9]+r[12] + outDiff2 ) = (quint16)qFromBigEndian((quint16)r[6]);//?????
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r[6] = (r[12] & 0x3FFF)>>1;//extrwi %r6, %r12, 14,17
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if( r[27] != 0 )
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goto loc_813321D0;
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goto loc_81332204;
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loc_813321F8:
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*(quint16 *)(r[8]+r[12] + outDiff2) = (quint16)qFromBigEndian((quint16)r[6]);
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r[23] = r[22];
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goto loc_81332124;
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loc_81332204:
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r[23] = 0x800;
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r[22] = 0x800;
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loc_8133220C:
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if( r[29] != 0x1F )
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goto loc_81332228;
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r[0] = r[30] >> 31;
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r[30]= qFromBigEndian(*(quint32 *)(r[4] + r[28] + inDiff));
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r[29]= 0;
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r[28]= r[28] + 4;
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goto loc_81332234;
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loc_81332228:
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r[0] = r[30] >> 31;
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r[29]= r[29] + 1;
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r[30]= r[30] << 1;
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loc_81332234:
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if( r[0] == 0 )
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goto loc_8133225C;
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r[0] = r[23] | 0x8000;
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*(quint16 *)(r[31] + outDiff2) = (quint16)qFromBigEndian((quint16)r[0]);
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r[0] = r[23] | 0x4000;
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*(quint16 *)(r[31]+2 + outDiff2) = (quint16)qFromBigEndian((quint16)r[0]);
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r[31] = r[31] + 4;
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r[27] = r[27] + 2;
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r[23] = r[23] + 1;
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r[22] = r[22] + 1;
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goto loc_8133220C;
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loc_8133225C:
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r[12] = 0xB;
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r[21] = r[29] + r[12];
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t = r[21];
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if( r[21] > 0x20 )
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goto loc_81332294;
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r[21] = (~(r[12] - 0x20))+1;
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r[7] = r[30] >> r[21];
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if( t == 0x20 )
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goto loc_81332284;
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r[30] = r[30] << r[12];
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r[29] = r[29] + r[12];
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goto loc_813322B8;
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loc_81332284:
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r[30]= qFromBigEndian(*(quint32 *)(r[4] + r[28] + inDiff));
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r[29]= 0;
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r[28]= r[28] + 4;
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goto loc_813322B8;
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loc_81332294:
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r[0] = (~(r[12] - 0x20))+1;
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r[7] = r[30] >> r[0];
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r[30]= qFromBigEndian(*(quint32 *)(r[4] + r[28] + inDiff));
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r[0] = (~(r[21] - 0x40))+1;
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r[28]= r[28] + 4;
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r[0] = r[30] >> r[0];
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r[7] = r[7] | r[0];
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r[29]= r[21] - 0x20;
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r[30]= r[30] << r[29];
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loc_813322B8:
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r[12]= (quint16)qFromBigEndian((quint16)(*(quint16 *)((r[31] + outDiff2 ) - 2)));
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r[31] -= 2;
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r[27]= r[27] - 1;
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r[0] = r[12] & 0x8000;
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r[12]= (r[12] & 0x1FFF) << 1;
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if( r[0] == 0 )
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goto loc_813322E0;
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*(quint16 *)(r[11]+r[12] + outDiff2 ) = (quint16)qFromBigEndian((quint16)r[7]);//????
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r[7] = (r[12] & 0x3FFF)>>1;// extrwi %r7, %r12, 14,17
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if( r[27] != 0 )
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goto loc_813322B8;
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goto loc_813322EC;
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loc_813322E0:
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*(quint16 *)(r[10]+r[12] + outDiff2 ) = (quint16)qFromBigEndian((quint16)r[7]);
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r[23] = r[22];
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goto loc_8133220C;
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loc_813322EC:
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r[0] = r[5];
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loc_813322F0:
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r[12]= r[6];
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loc_813322F4:
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if( r[12] < 0x200 )
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goto loc_8133233C;
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if( r[25] != 0x1F )
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goto loc_81332318;
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r[31] = r[26] >> 31;
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r[26] = qFromBigEndian(*(quint32 *)(r[4] + r[24] + inDiff));
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r[24] = r[24] + 4;
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r[25] = 0;
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goto loc_81332324;
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loc_81332318:
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r[31] = r[26] >> 31;
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r[25] = r[25] + 1;
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r[26] = r[26] << 1;
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loc_81332324:
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r[27] = r[12] << 1;
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if( r[31] != 0 )
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goto loc_81332334;
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r[12] = (quint16)qFromBigEndian((quint16)(*(quint16 *)(r[8] + r[27] + outDiff2 )));
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goto loc_813322F4;
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loc_81332334:
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r[12] = (quint16)qFromBigEndian((quint16)(*(quint16 *)(r[9] + r[27] + outDiff2 )));
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goto loc_813322F4;
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loc_8133233C:
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if( r[12] >= 0x100 )
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goto loc_8133235C;
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*(quint8 *)(r[3] + outDiff) = r[12];
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r[3] = r[3] + 1;
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r[5] = r[5] - 1;
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if( r[5] != 0 )
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goto loc_813322F0;
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goto loc_81332434;
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loc_8133235C:
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r[23] = r[7];
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loc_81332360:
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if( r[23] < 0x800 )
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goto loc_813323A8;
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if( r[29] != 0x1F )
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goto loc_81332384;
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r[31] = r[30] >> 31;
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r[30] = qFromBigEndian(*(quint32 *)(r[4] + r[28] + inDiff));
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r[28] = r[28] + 4;
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r[29] = 0;
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goto loc_81332390;
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loc_81332384:
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r[31] = r[30] >> 31;
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r[29] = r[29] + 1;
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r[30] = r[30] << 1;
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loc_81332390:
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r[27] = r[23] << 1;
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if( r[31] != 0 )
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goto loc_813323A0;
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r[23] = (quint16)qFromBigEndian((quint16)(*(quint16 *)(r[10] + r[27] + outDiff2 )));
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goto loc_81332360;
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loc_813323A0:
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r[23] = (quint16)qFromBigEndian((quint16)(*(quint16 *)(r[11] + r[27] + outDiff2 )));
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goto loc_81332360;
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loc_813323A8:
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r[12] = r[12] - 0xFD;
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r[23] = ~r[23] + r[3] + 1;
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r[5] = ~r[12] + r[5] + 1;
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r[31] = r[12] >> 3;
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if( r[31] == 0 )
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goto loc_81332414;
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count = r[31];
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loc_813323C0:
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r[31] = *(quint8 *)(( r[23] + outDiff ) - 1);
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*(quint8 *)(r[3] + outDiff) = r[31];
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r[31] = *(quint8 *)( r[23] + outDiff );
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*(quint8 *)(r[3]+1 + outDiff) = r[31];
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r[31] = *(quint8 *)(( r[23] + outDiff ) + 1);
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*(quint8 *)(r[3]+2 + outDiff) = r[31];
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r[31] = *(quint8 *)(( r[23] + outDiff ) + 2);
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*(quint8 *)(r[3]+3 + outDiff) = r[31];
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r[31] = *(quint8 *)(( r[23] + outDiff ) + 3);
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*(quint8 *)(r[3]+4 + outDiff) = r[31];
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r[31] = *(quint8 *)(( r[23] + outDiff ) + 4);
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*(quint8 *)(r[3]+5 + outDiff) = r[31];
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r[31] = *(quint8 *)(( r[23] + outDiff ) + 5);
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*(quint8 *)(r[3]+6 + outDiff) = r[31];
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r[31] = *(quint8 *)(( r[23] + outDiff ) + 6);
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*(quint8 *)(r[3]+7 + outDiff) = r[31];
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r[23] = r[23] + 8;
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r[3] = r[3] + 8;
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if( --count )
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goto loc_813323C0;
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r[12] = r[12] & 7;
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if( r[12] == 0 )
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goto loc_8133242C;
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loc_81332414:
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count = r[12];
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loc_81332418:
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r[31] = *(quint8 *)(( r[23] + outDiff ) - 1);
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r[23] = r[23] + 1;
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*(quint8 *)(r[3] + outDiff ) = r[31];
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r[3] = r[3] + 1;
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if( --count )
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goto loc_81332418;
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loc_8133242C:
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if( r[5] != 0 )
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goto loc_813322F0;
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loc_81332434:
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r[3] = r[0];
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QByteArray ret( r[ 3 ], '\0' );
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QBuffer outBuf( &ret );
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outBuf.open( QIODevice::WriteOnly );
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outBuf.write( (const char*)( o + outDiff ), r[ 3 ] );
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outBuf.close();
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return ret;
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}
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