// initialize ROM variables
Void initROM()
{
Int i, c;
// g_aucConvertToBit[ x ]: log2(x/4), if x=4 -> 0, x=8 -> 1, x=16 -> 2, ...
::memset( g_aucConvertToBit, -1, sizeof( g_aucConvertToBit ) );
c=0;
for ( i=4; i<MAX_CU_SIZE; i*=2 )
{
g_aucConvertToBit[ i ] = c;
c++;
}
g_aucConvertToBit[ i ] = c;
// g_auiFrameScanXY[ g_aucConvertToBit[ transformSize ] ]: zigzag scan array for transformSize
c=2;
for ( i=0; i<MAX_CU_DEPTH; i++ )
{
#if !REMOVE_ZIGZAG_SCAN
g_auiFrameScanXY[ i ] = new UInt[ c*c ];
g_auiFrameScanX [ i ] = new UInt[ c*c ];
g_auiFrameScanY [ i ] = new UInt[ c*c ];
initFrameScanXY( g_auiFrameScanXY[i], g_auiFrameScanX[i], g_auiFrameScanY[i], c, c );
#endif
g_auiSigLastScan[0][i] = new UInt[ c*c ];
g_auiSigLastScan[1][i] = new UInt[ c*c ];
g_auiSigLastScan[2][i] = new UInt[ c*c ];
g_auiSigLastScan[3][i] = new UInt[ c*c ];
initSigLastScan( g_auiSigLastScan[0][i], g_auiSigLastScan[1][i], g_auiSigLastScan[2][i], g_auiSigLastScan[3][i], c, c, i);
c <<= 1;
}
#if !REMOVE_NSQT
g_sigScanNSQT[0] = new UInt[ 64 ]; // 4x16
g_sigScanNSQT[1] = new UInt[ 256 ]; // 8x32
g_sigScanNSQT[2] = new UInt[ 64 ]; // 16x4
g_sigScanNSQT[3] = new UInt[ 256 ]; // 32x8
static int diagScanX[ 16 ] =
{
0, 0, 1, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 2, 3, 3
};
static int diagScanY[ 16 ] =
{
0, 1, 0, 2, 1, 0, 3, 2, 1, 0, 3, 2, 1, 3, 2, 3
};
Int j;
// 4x16 scan
for (i = 0; i < 4; i++)
{
for (j = 0; j < 16; j++)
{
g_sigScanNSQT[ 0 ][ 16 * i + j ] = 16 * i + 4 * diagScanY[ j ] + diagScanX[ j ];
}
}
// 8x32 scan
for (i = 0; i < 16; i++)
{
Int x = g_sigCGScanNSQT[ 1 ][ i ] & 1;
Int y = g_sigCGScanNSQT[ 1 ][ i ] >> 1;
for (j = 0; j < 16; j++)
{
g_sigScanNSQT[ 1 ][ 16 * i + j ] = 32 * y + 4 * x + 8 * diagScanY[ j ] + diagScanX[ j ];
}
}
// 16x4 scan
for (i = 0; i < 4; i++)
{
for (j = 0; j < 16; j++)
{
g_sigScanNSQT[ 2 ][ 16 * i + j ] = 4 * i + 16 * diagScanY[ j ] + diagScanX[ j ];
}
}
// 32x8 scan
for (i = 0; i < 16; i++)
{
Int x = g_sigCGScanNSQT[ 3 ][ i ] & 7;
Int y = g_sigCGScanNSQT[ 3 ][ i ] >> 3;
for (j = 0; j < 16; j++)
{
g_sigScanNSQT[ 3 ][ 16 * i + j ] = 128 * y + 4 * x + 32 * diagScanY[ j ] + diagScanX[ j ];
}
}
#endif
}
// initialize ROM variables
Void initROM()
{
Int i, c;
// g_aucConvertToBit[ x ]: log2(x/4), if x=4 -> 0, x=8 -> 1, x=16 -> 2, ...
::memset( g_aucConvertToBit, -1, sizeof( g_aucConvertToBit ) );
c=0;
for ( i=4; i<MAX_CU_SIZE; i*=2 )
{
g_aucConvertToBit[ i ] = c;
c++;
}
g_aucConvertToBit[ i ] = c;
// g_auiFrameScanXY[ g_aucConvertToBit[ transformSize ] ]: zigzag scan array for transformSize
c=2;
for ( i=0; i<MAX_CU_DEPTH; i++ )
{
g_auiFrameScanXY[ i ] = new UInt[ c*c ];
g_auiFrameScanX [ i ] = new UInt[ c*c ];
g_auiFrameScanY [ i ] = new UInt[ c*c ];
initFrameScanXY( g_auiFrameScanXY[i], g_auiFrameScanX[i], g_auiFrameScanY[i], c, c );
g_auiSigLastScan[0][i] = new UInt[ c*c ];
g_auiSigLastScan[1][i] = new UInt[ c*c ];
g_auiSigLastScan[2][i] = new UInt[ c*c ];
#if DIAG_SCAN
g_auiSigLastScan[3][i] = new UInt[ c*c ];
initSigLastScan( g_auiSigLastScan[0][i], g_auiSigLastScan[1][i], g_auiSigLastScan[2][i], g_auiSigLastScan[3][i], c, c, i);
#else
initSigLastScan( g_auiSigLastScan[0][i], g_auiSigLastScan[1][i], g_auiSigLastScan[2][i], c, c, i);
#endif
c <<= 1;
}
#if NSQT_DIAG_SCAN
g_sigScanNSQT[0] = new UInt[ 64 ]; // 4x16
g_sigScanNSQT[1] = new UInt[ 256 ]; // 8x32
g_sigScanNSQT[2] = new UInt[ 64 ]; // 16x4
g_sigScanNSQT[3] = new UInt[ 256 ]; // 32x8
static int diagScanX[ 16 ] =
{
0, 0, 1, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 2, 3, 3
};
static int diagScanY[ 16 ] =
{
0, 1, 0, 2, 1, 0, 3, 2, 1, 0, 3, 2, 1, 3, 2, 3
};
Int j;
// 4x16 scan
for (i = 0; i < 4; i++)
{
for (j = 0; j < 16; j++)
{
g_sigScanNSQT[ 0 ][ 16 * i + j ] = 16 * i + 4 * diagScanY[ j ] + diagScanX[ j ];
}
}
// 8x32 scan
for (i = 0; i < 16; i++)
{
Int x = g_sigCGScanNSQT[ 1 ][ i ] & 1;
Int y = g_sigCGScanNSQT[ 1 ][ i ] >> 1;
for (j = 0; j < 16; j++)
{
g_sigScanNSQT[ 1 ][ 16 * i + j ] = 32 * y + 4 * x + 8 * diagScanY[ j ] + diagScanX[ j ];
}
}
// 16x4 scan
for (i = 0; i < 4; i++)
{
for (j = 0; j < 16; j++)
{
g_sigScanNSQT[ 2 ][ 16 * i + j ] = 4 * i + 16 * diagScanY[ j ] + diagScanX[ j ];
}
}
// 32x8 scan
for (i = 0; i < 16; i++)
{
Int x = g_sigCGScanNSQT[ 3 ][ i ] & 7;
Int y = g_sigCGScanNSQT[ 3 ][ i ] >> 3;
for (j = 0; j < 16; j++)
{
g_sigScanNSQT[ 3 ][ 16 * i + j ] = 128 * y + 4 * x + 32 * diagScanY[ j ] + diagScanX[ j ];
}
}
#else
#if NSQT
#if NSQT_TX_ORDER
UInt uiWidth[ 4 ] = { 16, 32, 4, 8 };
UInt uiHeight[ 4 ] = { 4, 8, 16, 32 };
for ( i = 0; i < 4; i++ )
#else
UInt uiWidth[ 2 ] = { 16, 32 };
UInt uiHeight[ 2 ] = { 4, 8 };
for ( i = 0; i < 2; i++ )
#endif
{
UInt uiW = uiWidth[ i ];
UInt uiH = uiHeight[ i ];
g_auiNonSquareSigLastScan[ i ] = new UInt[ uiW * uiH ];
initNonSquareSigLastScan( g_auiNonSquareSigLastScan[ i ], uiW, uiH);
}
#endif
#endif
}