Revision 12802ec0 libavcodec/vc1dsp.c
| libavcodec/vc1dsp.c | ||
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* |
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*/ |
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#include "dsputil.h"
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#include "vc1dsp.h"
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/** Apply overlap transform to horizontal edge |
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PUT_VC1_MSPEL(2, 3) |
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PUT_VC1_MSPEL(3, 3) |
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av_cold void ff_vc1dsp_init(DSPContext* dsp, AVCodecContext *avctx) {
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static void put_no_rnd_vc1_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){
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const int A=(8-x)*(8-y); |
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const int B=( x)*(8-y); |
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const int C=(8-x)*( y); |
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const int D=( x)*( y); |
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int i; |
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assert(x<8 && y<8 && x>=0 && y>=0); |
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for(i=0; i<h; i++) |
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{
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dst[0] = (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + 32 - 4) >> 6; |
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dst[1] = (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + 32 - 4) >> 6; |
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dst[2] = (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + 32 - 4) >> 6; |
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dst[3] = (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + 32 - 4) >> 6; |
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dst[4] = (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + 32 - 4) >> 6; |
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dst[5] = (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + 32 - 4) >> 6; |
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dst[6] = (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + 32 - 4) >> 6; |
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dst[7] = (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + 32 - 4) >> 6; |
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dst+= stride; |
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src+= stride; |
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} |
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} |
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#define avg2(a,b) ((a+b+1)>>1) |
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static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){
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const int A=(8-x)*(8-y); |
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const int B=( x)*(8-y); |
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const int C=(8-x)*( y); |
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const int D=( x)*( y); |
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int i; |
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assert(x<8 && y<8 && x>=0 && y>=0); |
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for(i=0; i<h; i++) |
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{
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dst[0] = avg2(dst[0], ((A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + 32 - 4) >> 6)); |
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dst[1] = avg2(dst[1], ((A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + 32 - 4) >> 6)); |
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dst[2] = avg2(dst[2], ((A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + 32 - 4) >> 6)); |
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dst[3] = avg2(dst[3], ((A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + 32 - 4) >> 6)); |
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dst[4] = avg2(dst[4], ((A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + 32 - 4) >> 6)); |
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dst[5] = avg2(dst[5], ((A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + 32 - 4) >> 6)); |
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dst[6] = avg2(dst[6], ((A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + 32 - 4) >> 6)); |
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dst[7] = avg2(dst[7], ((A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + 32 - 4) >> 6)); |
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dst+= stride; |
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src+= stride; |
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} |
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} |
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av_cold void ff_vc1dsp_init(VC1DSPContext* dsp) {
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dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c; |
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dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c; |
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dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c; |
| ... | ... | |
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dsp->avg_vc1_mspel_pixels_tab[13] = avg_vc1_mspel_mc13_c; |
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dsp->avg_vc1_mspel_pixels_tab[14] = avg_vc1_mspel_mc23_c; |
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dsp->avg_vc1_mspel_pixels_tab[15] = avg_vc1_mspel_mc33_c; |
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dsp->put_no_rnd_vc1_chroma_pixels_tab[0]= put_no_rnd_vc1_chroma_mc8_c; |
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dsp->avg_no_rnd_vc1_chroma_pixels_tab[0]= avg_no_rnd_vc1_chroma_mc8_c; |
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if (HAVE_ALTIVEC) |
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ff_vc1dsp_init_altivec(dsp); |
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if (HAVE_MMX) |
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ff_vc1dsp_init_mmx(dsp); |
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} |
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