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h263_v_loop_filter_mmx
Originally committed as revision 2552 to svn://svn.ffmpeg.org/ffmpeg/trunk
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e1f03acc42
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@ -22,6 +22,8 @@
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#include "../dsputil.h"
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#include "../simple_idct.h"
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extern const uint8_t ff_h263_loop_filter_strength[32];
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int mm_flags; /* multimedia extension flags */
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/* pixel operations */
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@ -34,6 +36,8 @@ static const uint64_t ff_pw_3 __attribute__ ((aligned(8))) = 0x0003000300030003
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static const uint64_t ff_pw_16 __attribute__ ((aligned(8))) = 0x0010001000100010ULL;
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static const uint64_t ff_pw_15 __attribute__ ((aligned(8))) = 0x000F000F000F000FULL;
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static const uint64_t ff_pb_FC __attribute__ ((aligned(8))) = 0xFCFCFCFCFCFCFCFCULL;
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#define JUMPALIGN() __asm __volatile (".balign 8"::)
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#define MOVQ_ZERO(regd) __asm __volatile ("pxor %%" #regd ", %%" #regd ::)
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@ -465,6 +469,92 @@ static void add_bytes_mmx(uint8_t *dst, uint8_t *src, int w){
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dst[i+0] += src[i+0];
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}
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static void h263_v_loop_filter_mmx(uint8_t *src, int stride, int qscale){
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const int strength= ff_h263_loop_filter_strength[qscale];
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asm volatile(
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"pxor %%mm7, %%mm7 \n\t"
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"movq %0, %%mm0 \n\t"
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"movq %0, %%mm1 \n\t"
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"movq %3, %%mm2 \n\t"
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"movq %3, %%mm3 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"punpckhbw %%mm7, %%mm1 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"psubw %%mm2, %%mm0 \n\t"
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"psubw %%mm3, %%mm1 \n\t"
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"movq %1, %%mm2 \n\t"
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"movq %1, %%mm3 \n\t"
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"movq %2, %%mm4 \n\t"
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"movq %2, %%mm5 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"punpcklbw %%mm7, %%mm4 \n\t"
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"punpckhbw %%mm7, %%mm5 \n\t"
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"psubw %%mm2, %%mm4 \n\t"
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"psubw %%mm3, %%mm5 \n\t"
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"psllw $2, %%mm4 \n\t"
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"psllw $2, %%mm5 \n\t"
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"paddw %%mm0, %%mm4 \n\t"
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"paddw %%mm1, %%mm5 \n\t"
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"pxor %%mm6, %%mm6 \n\t"
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"pcmpgtw %%mm4, %%mm6 \n\t"
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"pcmpgtw %%mm5, %%mm7 \n\t"
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"pxor %%mm6, %%mm4 \n\t"
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"pxor %%mm7, %%mm5 \n\t"
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"psubw %%mm6, %%mm4 \n\t"
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"psubw %%mm7, %%mm5 \n\t"
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"psrlw $3, %%mm4 \n\t"
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"psrlw $3, %%mm5 \n\t"
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"packuswb %%mm5, %%mm4 \n\t" //abs(d)
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"packsswb %%mm7, %%mm6 \n\t" //sign(d)
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"pxor %%mm7, %%mm7 \n\t"
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"movd %4, %%mm2 \n\t"
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"punpcklbw %%mm2, %%mm2 \n\t"
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"punpcklbw %%mm2, %%mm2 \n\t"
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"punpcklbw %%mm2, %%mm2 \n\t" //2*strength
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"psubusb %%mm4, %%mm2 \n\t" // S(2*strength - abs(d))
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"movq %%mm2, %%mm3 \n\t" // S(2*strength - abs(d))
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"psubusb %%mm4, %%mm3 \n\t" // S(S(2*strength - abs(d)) - abs(d))
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"psubb %%mm3, %%mm2 \n\t" // MIN(abs(d), S(2*strength - abs(d)))
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"movq %1, %%mm3 \n\t"
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"movq %2, %%mm4 \n\t"
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"pxor %%mm6, %%mm3 \n\t"
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"pxor %%mm6, %%mm4 \n\t"
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"paddusb %%mm2, %%mm3 \n\t"
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"psubusb %%mm2, %%mm4 \n\t"
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"pxor %%mm6, %%mm3 \n\t"
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"pxor %%mm6, %%mm4 \n\t"
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"movq %%mm3, %1 \n\t"
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"movq %%mm4, %2 \n\t"
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"paddusb %%mm2, %%mm2 \n\t"
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"packsswb %%mm1, %%mm0 \n\t"
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"pcmpgtb %%mm0, %%mm7 \n\t"
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"pxor %%mm7, %%mm0 \n\t"
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"psubb %%mm7, %%mm0 \n\t"
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"movq %%mm0, %%mm1 \n\t"
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"psubusb %%mm2, %%mm0 \n\t"
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"psubb %%mm0, %%mm1 \n\t"
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"pand %5, %%mm1 \n\t"
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"psrlw $2, %%mm1 \n\t"
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"pxor %%mm7, %%mm1 \n\t"
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"psubb %%mm7, %%mm1 \n\t"
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"movq %0, %%mm3 \n\t"
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"movq %3, %%mm4 \n\t"
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"psubb %%mm1, %%mm3 \n\t"
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"paddb %%mm1, %%mm4 \n\t"
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"movq %%mm3, %0 \n\t"
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"movq %%mm4, %3 \n\t"
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: "+m" (*(uint64_t*)(src - 2*stride)),
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"+m" (*(uint64_t*)(src - 1*stride)),
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"+m" (*(uint64_t*)(src + 0*stride)),
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"+m" (*(uint64_t*)(src + 1*stride))
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: "g" (2*strength), "m"(ff_pb_FC)
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);
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}
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#ifdef CONFIG_ENCODERS
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static int pix_norm1_mmx(uint8_t *pix, int line_size) {
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int tmp;
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@ -1691,6 +1781,8 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
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c->pix_norm1 = pix_norm1_mmx;
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c->sse[0] = sse16_mmx;
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#endif //CONFIG_ENCODERS
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c->h263_v_loop_filter= h263_v_loop_filter_mmx;
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if (mm_flags & MM_MMXEXT) {
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c->put_pixels_tab[0][1] = put_pixels16_x2_mmx2;
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