<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><div>right, with some comment below</div><pre><br>At 2015-03-03 12:03:23,dtyx265@gmail.com wrote:
># HG changeset patch
># User David T Yuen <dtyx265@gmail.com>
># Date 1425355260 28800
># Node ID 48ca9a0c131c99d54778515dc5a6a5a7a9197153
># Parent 4641827f98c935603f608425de8c76785aef1114
>asm: intrapred dc32 sse2 high bit
>
>This replaces c code for systems using ssse3 to sse2 processors
>The code is backported from intrapred dc32 sse4 high bit
>
>./test/TestBench --testbench intrapred | grep 32x32
>intra_dc_32x32[f=0] 2.83x 3080.15 8729.59
>
>diff -r 4641827f98c9 -r 48ca9a0c131c source/common/x86/asm-primitives.cpp
>--- a/source/common/x86/asm-primitives.cpp Mon Mar 02 14:46:46 2015 -0800
>+++ b/source/common/x86/asm-primitives.cpp Mon Mar 02 20:01:00 2015 -0800
>@@ -871,6 +871,7 @@
> p.cu[BLOCK_4x4].intra_pred[DC_IDX] = x265_intra_pred_dc4_sse2;
> p.cu[BLOCK_8x8].intra_pred[DC_IDX] = x265_intra_pred_dc8_sse2;
> p.cu[BLOCK_16x16].intra_pred[DC_IDX] = x265_intra_pred_dc16_sse2;
>+ p.cu[BLOCK_32x32].intra_pred[DC_IDX] = x265_intra_pred_dc32_sse2;
>
> p.cu[BLOCK_4x4].sse_ss = x265_pixel_ssd_ss_4x4_mmx2;
> ALL_LUMA_CU(sse_ss, pixel_ssd_ss, sse2);
>diff -r 4641827f98c9 -r 48ca9a0c131c source/common/x86/intrapred16.asm
>--- a/source/common/x86/intrapred16.asm Mon Mar 02 14:46:46 2015 -0800
>+++ b/source/common/x86/intrapred16.asm Mon Mar 02 20:01:00 2015 -0800
>@@ -386,6 +386,69 @@
> .end:
> RET
>
>+;-------------------------------------------------------------------------------------------
>+; void intra_pred_dc(pixel* above, pixel* left, pixel* dst, intptr_t dstStride, int filter)
>+;-------------------------------------------------------------------------------------------
>+INIT_XMM sse2
>+cglobal intra_pred_dc32, 3, 5, 6
>+ lea r3, [r2 + 130]
<br>I guess 130 because 32*sizeof(pixel)*2 + 1*sizeof(pixel), please make a comment here to more readable<br><br>>+ add r2, 2
>+ add r1, r1
>+ movu m0, [r3]
>+ movu m1, [r3 + 16]
>+ movu m2, [r3 + 32]
>+ movu m3, [r3 + 48]
>+ paddw m0, m1
>+ paddw m2, m3
>+ paddw m0, m2
>+ movu m1, [r2]
>+ movu m3, [r2 + 16]
>+ movu m4, [r2 + 32]
>+ movu m5, [r2 + 48]
>+ paddw m1, m3
>+ paddw m4, m5
>+ paddw m1, m4
>+ paddw m0, m1
>+ movhlps m1, m0
>+ paddw m0, m1
>+ pshuflw m1, m0, 0x6E
>+ paddw m0, m1
>+ pmaddwd m0, [pw_1]
>+
>+ paddd m0, [pd_32] ; sum = sum + 32
>+ psrld m0, 6 ; sum = sum / 64
>+ pshuflw m0, m0, 0
>+ pshufd m0, m0, 0
>+
>+ lea r2, [r1 * 3]
>+
>+ ; store DC 32x32
>+%assign x 1
>+%rep 8
>+ movu [r0 + 0], m0
>+ movu [r0 + 16], m0
>+ movu [r0 + 32], m0
>+ movu [r0 + 48], m0
>+ movu [r0 + r1 + 0], m0
>+ movu [r0 + r1 + 16], m0
>+ movu [r0 + r1 + 32], m0
>+ movu [r0 + r1 + 48], m0
>+ movu [r0 + r1 * 2 + 0], m0
>+ movu [r0 + r1 * 2 + 16], m0
>+ movu [r0 + r1 * 2 + 32], m0
>+ movu [r0 + r1 * 2 + 48], m0
>+ movu [r0 + r2 + 0], m0
>+ movu [r0 + r2 + 16], m0
>+ movu [r0 + r2 + 32], m0
>+ movu [r0 + r2 + 48], m0
>+ %if x < 8
>+ lea r0, [r0 + r1 * 4]
>+ %endif
>+ %assign x x + 1<br>don't make extra space here, sometime yasm have problem on it<br><br> >+%endrep
>+
>+ RET
>+
> ;-----------------------------------------------------------------------------------
> ; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel* above, int, int filter)
> ;-----------------------------------------------------------------------------------
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</pre></div>