[x265] [PATCH 10 of 18] asm: intra_pred_ang4_26_sse2 16-bit

[chen]

At 2015-04-04 00:24:41,dtyx265 at gmail.com wrote:
># HG changeset patch
># User David T Yuen <dtyx265 at gmail.com>
># Date 1428076210 25200
># Node ID 89cf1dc260ad91eba0f4edcacc784be0959636b5
># Parent  95c50ede466fa24a1ff13e5203305b35392a5f64
>asm: intra_pred_ang4_26_sse2 16-bit
>
>This is backported from sse4 code and replaces c code.
>
>./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[26\]"
>intra_ang_4x4[26]	3.76x 	 200.35   	 754.13
>
>diff -r 95c50ede466f -r 89cf1dc260ad source/common/x86/asm-primitives.cpp
>--- a/source/common/x86/asm-primitives.cpp	Fri Apr 03 08:46:08 2015 -0700
>+++ b/source/common/x86/asm-primitives.cpp	Fri Apr 03 08:50:10 2015 -0700
>@@ -891,6 +891,7 @@
>         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].intra_pred[27] = x265_intra_pred_ang4_9_sse2;
>         p.cu[BLOCK_4x4].intra_pred[28] = x265_intra_pred_ang4_8_sse2;
>         p.cu[BLOCK_4x4].intra_pred[29] = x265_intra_pred_ang4_7_sse2;
>diff -r 95c50ede466f -r 89cf1dc260ad source/common/x86/intrapred16.asm
>--- a/source/common/x86/intrapred16.asm	Fri Apr 03 08:46:08 2015 -0700
>+++ b/source/common/x86/intrapred16.asm	Fri Apr 03 08:50:10 2015 -0700
>@@ -946,6 +946,42 @@
>     movh        [r0],           m0
>     RET
> 
>+cglobal intra_pred_ang4_26, 3,3,3
>+    movh        m0,             [r2 + 2]            ; [8 7 6 5 4 3 2 1]
>+    add         r1,             r1
r1d?

>+    ; store
>+    movh        [r0],           m0
>+    movh        [r0 + r1],      m0
>+    movh        [r0 + r1 * 2],  m0
>+    lea         r3,             [r1 * 3]
>+    movh        [r0 + r3],      m0
>+
>+    ; filter
>+    cmp         r4m,            byte 0
>+    jz         .quit
>+
>+    pshuflw     m0,             m0, 0x00
>+    movd        m2,             [r2]
>+    pshuflw     m2,             m2, 0x00
>+    movh        m1,             [r2 + 18]
>+    psubw       m1,             m2
>+    psraw       m1,             1
>+    paddw       m0,             m1
>+    pxor        m1,             m1
>+    pmaxsw      m0,             m1
>+    pminsw      m0,             [pw_1023]
>+
>+    movh        r2,             m0
>+    mov         [r0],           r2w
>+    shr         r2,             16
>+    mov         [r0 + r1],      r2w
>+    shr         r2,             16
>+    mov         [r0 + r1 * 2],  r2w
>+    shr         r2,             16
>+    mov         [r0 + r3],      r2w
>+.quit:
>+    RET
>+
> ;-----------------------------------------------------------------------------------
> ; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel* above, int, int filter)
> ;-----------------------------------------------------------------------------------
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