[x265] [PATCH 7 of 9] asm: intra_pred_ang8_23 improved by ~18% over SSE4

[praveen at multicorewareinc.com]

# HG changeset patch
# User Praveen Tiwari <praveen at multicorewareinc.com>
# Date 1428581726 -19800
#      Thu Apr 09 17:45:26 2015 +0530
# Node ID 5db8882a1ef6c5f27bc59869692791290945af2a
# Parent  31ce12d63d6560df4ce29bdb948525cf73f057f4
asm: intra_pred_ang8_23 improved by ~18% over SSE4

AVX2:
intra_ang_8x8[23]       9.75x    205.43          2002.05

SSE4:
intra_ang_8x8[23]       8.12x    251.42          2041.61

diff -r 31ce12d63d65 -r 5db8882a1ef6 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp	Thu Apr 09 17:08:14 2015 +0530
+++ b/source/common/x86/asm-primitives.cpp	Thu Apr 09 17:45:26 2015 +0530
@@ -1765,6 +1765,7 @@
         p.cu[BLOCK_8x8].intra_pred[24] = x265_intra_pred_ang8_24_avx2;
         p.cu[BLOCK_8x8].intra_pred[11] = x265_intra_pred_ang8_11_avx2;
         p.cu[BLOCK_8x8].intra_pred[13] = x265_intra_pred_ang8_13_avx2;
+        p.cu[BLOCK_8x8].intra_pred[23] = x265_intra_pred_ang8_23_avx2;
         p.cu[BLOCK_8x8].intra_pred[14] = x265_intra_pred_ang8_14_avx2;
         p.cu[BLOCK_8x8].intra_pred[15] = x265_intra_pred_ang8_15_avx2;
         p.cu[BLOCK_16x16].intra_pred[3] = x265_intra_pred_ang16_3_avx2;
diff -r 31ce12d63d65 -r 5db8882a1ef6 source/common/x86/intrapred.h
--- a/source/common/x86/intrapred.h	Thu Apr 09 17:08:14 2015 +0530
+++ b/source/common/x86/intrapred.h	Thu Apr 09 17:45:26 2015 +0530
@@ -236,6 +236,7 @@
 void x265_intra_pred_ang8_13_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
 void x265_intra_pred_ang8_14_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
 void x265_intra_pred_ang8_15_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
+void x265_intra_pred_ang8_23_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
 void x265_intra_pred_ang16_3_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
 void x265_intra_pred_ang16_4_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
 void x265_intra_pred_ang16_5_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
diff -r 31ce12d63d65 -r 5db8882a1ef6 source/common/x86/intrapred8.asm
--- a/source/common/x86/intrapred8.asm	Thu Apr 09 17:08:14 2015 +0530
+++ b/source/common/x86/intrapred8.asm	Thu Apr 09 17:45:26 2015 +0530
@@ -12056,6 +12056,51 @@
     movhps            [r0 + r3], xm2
     RET
 
+
+INIT_YMM avx2
+cglobal intra_pred_ang8_23, 3, 6, 6
+    mova              m3, [pw_1024]
+    movu              xm5, [r2]
+    lea               r5, [intra_pred_shuff_0_8]
+    vinserti128       m0, m5, xm5, 1
+    pshufb            m0, [r5]
+
+    lea               r4, [c_ang8_mode_13]
+    pmaddubsw         m1, m0, [r4]
+    pmulhrsw          m1, m3
+    pslldq            xm5, 1
+    pinsrb            xm5, [r2 + 4 + 16], 0
+    pshufb            xm4, xm5, [r5]
+    vinserti128       m0, m0, xm4, 1
+    pmaddubsw         m2, m0, [r4 + mmsize]
+    pmulhrsw          m2, m3
+    vinserti128       m0, m0, xm4, 0
+    pmaddubsw         m4, m0, [r4 + 2 * mmsize]
+    pmulhrsw          m4, m3
+    pslldq            xm5, 1
+    pinsrb            xm5, [r2 + 7 + 16], 0
+    pshufb            xm5, [r5]
+    vinserti128       m0, m0, xm5, 1
+    pmaddubsw         m0, [r4 + 3 * mmsize]
+    pmulhrsw          m0, m3
+
+    packuswb          m1, m2
+    packuswb          m4, m0
+
+    lea               r3, [3 * r1]
+    movq              [r0], xm1
+    vextracti128      xm2, m1, 1
+    movq              [r0 + r1], xm2
+    movhps            [r0 + 2 * r1], xm1
+    movhps            [r0 + r3], xm2
+    lea               r0, [r0 + 4 * r1]
+    movq              [r0], xm4
+    vextracti128      xm2, m4, 1
+    movq              [r0 + r1], xm2
+    movhps            [r0 + 2 * r1], xm4
+    movhps            [r0 + r3], xm2
+    RET
+
 INIT_YMM avx2
 cglobal intra_pred_ang8_12, 3, 5, 5
     mova              m3, [pw_1024]