Port pred4x4_down_right_mmxext (H.264 intra prediction) from x264 (authors:
Jason, Loren, Holger) to FFmpeg. Patch by Daniel Kang <daniel dot d dot kang at gmail com>, as part of Google's GCI 2010. Originally committed as revision 26159 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -2661,4 +2661,33 @@ cglobal pred4x4_vertical_right_mmxext, 3,3
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PALIGNR m3, m1, 7, m1
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movh [r1+r2*2], m3
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RET
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;-----------------------------------------------------------------------------
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; void pred4x4_down_right_mmxext(uint8_t *src, const uint8_t *topright, int stride)
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;-----------------------------------------------------------------------------
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INIT_MMX
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%define PALIGNR PALIGNR_MMX
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cglobal pred4x4_down_right_mmxext, 3,3
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sub r0, r2
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lea r1, [r0+r2*2]
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movq m1, [r1-8]
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movq m2, [r0+r2*1-8]
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punpckhbw m2, [r0-8]
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movh m3, [r0]
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punpckhwd m1, m2
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PALIGNR m3, m1, 5, m1
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movq m1, m3
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PALIGNR m3, [r1+r2*1-8], 7, m4
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movq m2, m3
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PALIGNR m3, [r1+r2*2-8], 7, m4
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PRED4x4_LOWPASS m0, m3, m1, m2, m4
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movh [r1+r2*2], m0
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psrlq m0, 8
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movh [r1+r2*1], m0
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psrlq m0, 8
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movh [r0+r2*2], m0
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psrlq m0, 8
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movh [r0+r2*1], m0
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RET
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%endif
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@ -84,6 +84,7 @@ void ff_pred8x8l_horizontal_down_sse2(uint8_t *src, int has_topleft, int has_top
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void ff_pred8x8l_horizontal_down_ssse3(uint8_t *src, int has_topleft, int has_topright, int stride);
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void ff_pred4x4_dc_mmxext (uint8_t *src, const uint8_t *topright, int stride);
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void ff_pred4x4_down_left_mmxext (uint8_t *src, const uint8_t *topright, int stride);
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void ff_pred4x4_down_right_mmxext (uint8_t *src, const uint8_t *topright, int stride);
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void ff_pred4x4_vertical_left_mmxext(uint8_t *src, const uint8_t *topright, int stride);
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void ff_pred4x4_vertical_right_mmxext(uint8_t *src, const uint8_t *topright, int stride);
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void ff_pred4x4_horizontal_up_mmxext(uint8_t *src, const uint8_t *topright, int stride);
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@ -132,6 +133,7 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
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h->pred8x8l [VERT_RIGHT_PRED ] = ff_pred8x8l_vertical_right_mmxext;
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h->pred8x8l [HOR_UP_PRED ] = ff_pred8x8l_horizontal_up_mmxext;
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h->pred8x8l [HOR_DOWN_PRED ] = ff_pred8x8l_horizontal_down_mmxext;
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h->pred4x4 [DIAG_DOWN_RIGHT_PRED] = ff_pred4x4_down_right_mmxext;
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h->pred4x4 [VERT_RIGHT_PRED ] = ff_pred4x4_vertical_right_mmxext;
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h->pred4x4 [HOR_DOWN_PRED ] = ff_pred4x4_horizontal_down_mmxext;
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#endif
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