DSP

乒乓--平滑,翻转

2019-07-13 16:27发布

站内文章 / DSP
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// 一行行平滑 #define MAX_W 2592 static unsigned char inBuf[MAX_W*4]; // in L2 SRAM static unsigned char outBuf[MAX_W*2]; // in L2 SRAM static void smooth_one_line( const unsigned char* restrict in1, const unsigned char* restrict in2, const unsigned char* restrict in3, unsigned char* outLine, short outLen ) { short j; static char mask[16] = { 1,2,1, 2,4,2, 1,2,1, 0,0,0,0,0,0,0 }; unsigned int mask1_0, mask2_0, mask3_0; unsigned int mask1_1, mask2_1, mask3_1; double r1_76543210, r2_76543210, r3_76543210; unsigned int r1_7654, r1_3210; unsigned int r2_7654, r2_3210; unsigned int r3_7654, r3_3210; unsigned int r1_5432, r2_5432, r3_5432; int sum0, sum1, sum2, sum3; unsigned int sum32, sum10, sum3210; // get 4 bytes, shift left 8 bits, shift right 8 bits mask1_0 = _extu( _mem4_const(&mask[0]), 8, 8); mask2_0 = _extu( _mem4_const(&mask[3]), 8, 8); mask3_0 = _extu( _mem4_const(&mask[6]), 8, 8); mask1_1 = mask1_0 << 8; mask2_1 = mask2_0 << 8; mask3_1 = mask3_0 << 8; // the first pixel is *IN2 sum3 = *in2; for( j=0; j7; j+=4 ) { r1_76543210 = _memd8_const(&in1[j]); r2_76543210 = _memd8_const(&in2[j]); r3_76543210 = _memd8_const(&in3[j]); r1_3210 = _lo(r1_76543210); r2_3210 = _lo(r2_76543210); r3_3210 = _lo(r3_76543210); r1_7654 = _hi(r1_76543210); r2_7654 = _hi(r2_76543210); r3_7654 = _hi(r3_76543210); sum0 = (_dotpsu4(mask1_0, r1_3210) + _dotpsu4(mask2_0, r2_3210) + _dotpsu4(mask3_0, r3_3210) + 8 ) >> 4; sum1 = (_dotpsu4(mask1_1, r1_3210) + _dotpsu4(mask2_1, r2_3210) + _dotpsu4(mask3_1, r3_3210) + 8 ) >> 4; // sum10 = _spack2(sum1, sum0); sum10 = _spack2(sum0, sum3); r1_5432 = _packlh2(r1_7654, r1_3210); r2_5432 = _packlh2(r2_7654, r2_3210); r3_5432 = _packlh2(r3_7654, r3_3210); sum2 = (_dotpsu4(mask1_0, r1_5432) + _dotpsu4(mask2_0, r2_5432) + _dotpsu4(mask3_0, r3_5432) + 8 ) >> 4; sum3 = (_dotpsu4(mask1_1, r1_5432) + _dotpsu4(mask2_1, r2_5432) + _dotpsu4(mask3_1, r3_5432) + 8 ) >> 4; // sum32 = _spack2(sum3, sum2); sum32 = _spack2(sum2, sum1); sum3210 = _spacku4(sum32, sum10); _mem4(&outLine[j]) = sum3210; } // process the rest outLine[j] = sum3; for( ; j1; j++ ) { outLine[j] = ( in1[j-1] + in1[j]*2 + in1[j+1] + in2[j-1]*2 + in2[j]*4 + in2[j+1]*2 + in3[j-1] + in3[j]*2 + in3[j+1] + 8 ) / 16; } outLine[j] = in2[j]; return; } void smooth_pingpang( unsigned char* inPtr, short inW, unsigned char* outPtr, short outW,short outH ) { // ... short i,t; unsigned char *p1, *p2, *p3, *p4,*pTmp; unsigned char *pout1, *pout2; unsigned char *pS, *pD; // ... p1 = inPtr; p2 = inBuf; DMA_FAST1DTO1D(p2,p1,outW); p2 += MAX_W; p1 += inW; DMA_FAST1DTO1D(p2,p1,outW); p2 += MAX_W; p1 += inW; DMA_FAST1DTO1D(p2,p1,outW); //TODO wait p1 = inBuf; p2 = p1+MAX_W; p3 = p2+MAX_W; p4 = p3+MAX_W; pS = inPtr+3*inW; pD = outPtr; pout1 = outBuf; pout2 = pout1+MAX_W; // p1 --> out frist DMA_FAST1DTO1D(pD,p1,outW); pD += inW; t = (int)((outH-3)/2); // process p1,p2,p3 => out 1 smooth_one_line( p1, p2, p3, pout1, outW ); for( i=0; i//循环次数保证 剩余偶数 如果单数 外面多拷贝一行 TODO????? { // DMA, ext mem -> inBuff2, outW DMA_FAST1DTO1D(p4,pS,inW); pS+=inW; // DMA, out 1 -> ext mem, outW DMA_FAST1DTO1D(pD,pout1,outW); pD += inW; pTmp = p1; p1 = p2; p2 = p3; p3 = p4; p4 = pTmp; // process( 1, 2, 3 ) >>out 2 smooth_one_line( p1, p2, p3, pout2, outW ); // DMA, ext mem -> inBufA DMA_FAST1DTO1D(p4,pS,inW); pS += inW; // DMA, out2 -> ext mem DMA_FAST1DTO1D(pD,pout2,outW); pD += inW; pTmp = p1; p1 = p2; p2 = p3; p3 = p4; p4 = pTmp; // process( 1, 2, 3 ), >> out 1 smooth_one_line( p1, p2, p3, pout1, outW); } if(0==((outH-3)%2)) { //拷贝最后一行 // p1 -> out last 1最后一行的拷贝 pD += inW; DMA_FAST1DTO1D( pD, p3, outW ); } else { DMA_FAST1DTO1D(pD,pout1,outW); pD += inW; //处理倒数第二行 //process( 1, 2, 3 ); smooth_one_line( p1, p2, p3, pout2, inW ); // p1 -> out last 1最后一行的拷贝 //拷贝最后两行 DMA_FAST1DTO1D( pD, pout2, outW ); pD += inW; DMA_FAST1DTO1D( pD, p3, outW ); } ITG_DMA_FastWait( 63 ); return; } void smooth_pingpang_upsetdown( unsigned char* inPtr, short inW, unsigned char* outPtr, short outW, short outH ) { // ... short i,t; unsigned char *p1, *p2, *p3, *p4,*pTmp; unsigned char *pout1, *pout2; unsigned char *pS, *pD; // ... p1 = inPtr; p2 = inBuf; DMA_FAST1DTO1D(p2,p1,outW); p2 += MAX_W; p1 += inW; DMA_FAST1DTO1D(p2,p1,outW); p2 += MAX_W; p1 += inW; DMA_FAST1DTO1D(p2,p1,outW); //TODO wait p1 = inBuf; p2 = p1+MAX_W; p3 = p2+MAX_W; p4 = p3+MAX_W; pS = inPtr+3*inW; pD = outPtr + outH*outW;//......... pout1 = outBuf; pout2 = pout1+MAX_W; // p1 --> out frist pD -= outW;//......... t = (int)((outH-2)/2); //TODO process p1,p2,p3 => out 1 for( i=0; i2 ) //循环次数保证 剩余偶数 如果单数 外面多拷贝一行 TODO????? { // DMA, ext mem -> inBuff2, outW DMA_FAST1DTO1D(p4,pS,outW); pS+=inW; // DMA, out 1 -> ext mem, outW DMA_FAST1DTO1D(pD,pout1,outW); pD -= outW;//......... pTmp = p1; p1 = p2; p2 = p3; p3 = p4; p4 = pTmp; // process( 1, 2, 3 ) >>out 2 // DMA, ext mem -> inBufA DMA_FAST1DTO1D(p4,pS,outW); pS += inW; // DMA, out2 -> ext mem DMA_FAST1DTO1D(pD,pout2,outW); pD -= outW;//......... pTmp = p1; p1 = p2; p2 = p3; p3 = p4; p4 = pTmp; // process( 1, 2, 3 ), >> out 1 } DMA_FAST1DTO1D(pD,p1,outW); if(0==((outH-2)%2)) { DMA_FAST1DTO1D( pD, p4, outW );//拷贝最后一行 // p1 -> out last 1最后一行的拷贝 } else { //处理倒数第二行 // p1 -> out last 1最后一行的拷贝 //拷贝最后两行 DMA_FAST1DTO1D( pD, p2, outW ); pD+=outW; DMA_FAST1DTO1D( pD, p3, outW ); } ITG_DMA_FastWait( 63 ); return; }

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