[x265] [PATCH 02 of 11] asm: intra_pred_ang4_26_sse2

[chen]

At 2015-03-28 10:42:42,dtyx265 at gmail.com wrote:
># HG changeset patch
># User David T Yuen <dtyx265 at gmail.com>
># Date 1427504802 25200
># Node ID c5fa8f49bf15818007fe6ab25eb6aec65bb203cb
># Parent  d7fee58a8466d6862e72cced5a4aa12e37294d4e
>asm: intra_pred_ang4_26_sse2
>
>This is backported from sse4 code and replaces c code.
>
>64-bit
>
>./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[26\]"
>intra_ang_4x4[26]	3.87x 	 217.84   	 843.32
>
>32-bit
>
>./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[26\]"
>intra_ang_4x4[26]	2.82x 	 320.03   	 903.85
>
>diff -r d7fee58a8466 -r c5fa8f49bf15 source/common/x86/asm-primitives.cpp
>--- a/source/common/x86/asm-primitives.cpp	Fri Mar 27 17:51:06 2015 -0700
>+++ b/source/common/x86/asm-primitives.cpp	Fri Mar 27 18:06:42 2015 -0700
>@@ -1205,6 +1205,7 @@
>         p.cu[BLOCK_4x4].intra_pred[8] = x265_intra_pred_ang4_8_sse2;
>         p.cu[BLOCK_4x4].intra_pred[9] = x265_intra_pred_ang4_9_sse2;
>         p.cu[BLOCK_4x4].intra_pred[10] = x265_intra_pred_ang4_10_sse2;
>+        p.cu[BLOCK_4x4].intra_pred[26] = x265_intra_pred_ang4_26_sse2;
> 
>         p.cu[BLOCK_4x4].calcresidual = x265_getResidual4_sse2;
>         p.cu[BLOCK_8x8].calcresidual = x265_getResidual8_sse2;
>diff -r d7fee58a8466 -r c5fa8f49bf15 source/common/x86/intrapred.h
>--- a/source/common/x86/intrapred.h	Fri Mar 27 17:51:06 2015 -0700
>+++ b/source/common/x86/intrapred.h	Fri Mar 27 18:06:42 2015 -0700
>@@ -56,6 +56,7 @@
> DECL_ANG(4, 8, sse2);
> DECL_ANG(4, 9, sse2);
> DECL_ANG(4, 10, sse2);
>+DECL_ANG(4, 26, sse2);
> 
> DECL_ANG(4, 2, ssse3);
> DECL_ANG(4, 3, sse4);
>diff -r d7fee58a8466 -r c5fa8f49bf15 source/common/x86/intrapred8.asm
>--- a/source/common/x86/intrapred8.asm	Fri Mar 27 17:51:06 2015 -0700
>+++ b/source/common/x86/intrapred8.asm	Fri Mar 27 18:06:42 2015 -0700
>@@ -1512,6 +1512,46 @@
>     movd        [r0], m0
>     RET
> 
>+INIT_XMM sse2
>+cglobal intra_pred_ang4_26, 5,5,4
>+    movd        m0, [r2 + 1]            ; [8 7 6 5 4 3 2 1]
>+
>+    ; store
>+    movd        [r0], m0
>+    movd        [r0 + r1], m0
>+    movd        [r0 + r1 * 2], m0
>+    lea         r3, [r1 * 3]
>+    movd        [r0 + r3], m0
>+
>+    ; filter
>+    cmp         r4m, byte 0
>+    jz         .quit
>+
>+    pxor        m3, m3
>+    punpcklbw   m0, m3
>+    pshuflw     m0, m0, 0x00
>+    movd        m2, [r2]
>+    punpcklbw   m2, m3
>+    pshuflw     m2, m2, 0x00
>+    movd        m1, [r2 + 9]
>+    punpcklbw   m1, m3
>+    psubw       m1, m2
>+    psraw       m1, 1
>+    paddw       m0, m1
>+    packuswb    m0, m0
>+
>+    movd        r2, m0

r2d?
>+    mov         [r0], r2b
>+    shr         r2, 8
>+    mov         [r0 + r1], r2b
>+    shr         r2, 8
>+    mov         [r0 + r1 * 2], r2b
>+    shr         r2, 8
>+    mov         [r0 + r3], r2b
>+
>+.quit:
>+    RET
>+
> ;---------------------------------------------------------------------------------------------
> ; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel *srcPix, int dirMode, int bFilter)
> ;---------------------------------------------------------------------------------------------
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