[x265] [PATCH Review Only] asm-avx2: intra_pred_ang8_32, improved 435.21c -> 323.25c sse4 asm code

[praveen at multicorewareinc.com]

# HG changeset patch
# User Praveen Tiwari <praveen at multicorewareinc.com>
# Date 1424859811 -19800
# Node ID 3e4e3e2cafab08ff7fae37e0ad4fc8ed4d733656
# Parent  177fe9372668b4824c291e967349664766688179
asm-avx2: intra_pred_ang8_32, improved 435.21c -> 323.25c sse4 asm code

intra_ang_8x8[32]       10.71x   323.25          3463.18

diff -r 177fe9372668 -r 3e4e3e2cafab source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp	Wed Feb 25 14:19:56 2015 +0530
+++ b/source/common/x86/asm-primitives.cpp	Wed Feb 25 15:53:31 2015 +0530
@@ -1814,6 +1814,7 @@
         // intra_pred functions
         p.cu[BLOCK_8x8].intra_pred[3] = x265_intra_pred_ang8_3_avx2;
         p.cu[BLOCK_8x8].intra_pred[33] = x265_intra_pred_ang8_33_avx2;
+        p.cu[BLOCK_8x8].intra_pred[32] = x265_intra_pred_ang8_32_avx2;
     }
 }
 #endif // if HIGH_BIT_DEPTH
diff -r 177fe9372668 -r 3e4e3e2cafab source/common/x86/intrapred.h
--- a/source/common/x86/intrapred.h	Wed Feb 25 14:19:56 2015 +0530
+++ b/source/common/x86/intrapred.h	Wed Feb 25 15:53:31 2015 +0530
@@ -159,6 +159,7 @@
 #undef DECL_ANG
 void x265_intra_pred_ang8_3_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
 void x265_intra_pred_ang8_33_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
+void x265_intra_pred_ang8_32_avx2(pixel* dst, intptr_t dstStride, const pixel* srcPix, int dirMode, int bFilter);
 void x265_all_angs_pred_4x4_sse4(pixel *dest, pixel *refPix, pixel *filtPix, int bLuma);
 void x265_all_angs_pred_8x8_sse4(pixel *dest, pixel *refPix, pixel *filtPix, int bLuma);
 void x265_all_angs_pred_16x16_sse4(pixel *dest, pixel *refPix, pixel *filtPix, int bLuma);
diff -r 177fe9372668 -r 3e4e3e2cafab source/common/x86/intrapred8.asm
--- a/source/common/x86/intrapred8.asm	Wed Feb 25 14:19:56 2015 +0530
+++ b/source/common/x86/intrapred8.asm	Wed Feb 25 15:53:31 2015 +0530
@@ -63,6 +63,14 @@
 c_ang8_src6_14_7_15:  db 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14
 c_ang8_22_16:         db 10, 22, 10, 22, 10, 22, 10, 22, 10, 22, 10, 22, 10, 22, 10, 22, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
 
+c_ang8_21_10       :  db 11, 21, 11, 21, 11, 21, 11, 21, 11, 21, 11, 21, 11, 21, 11, 21, 22, 10, 22, 10, 22, 10, 22, 10, 22, 10, 22, 10, 22, 10, 22, 10
+c_ang8_src2_10_3_11:  db 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10
+c_ang8_31_20:         db 1, 31, 1, 31, 1, 31, 1, 31, 1, 31, 1, 31, 1, 31, 1, 31, 12, 20, 12, 20, 12, 20, 12, 20, 12, 20, 12, 20, 12, 20, 12, 20
+c_ang8_src4_12_4_12:  times 2 db 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11
+c_ang8_9_30:          db 23, 9, 23, 9, 23, 9, 23, 9, 23, 9, 23, 9, 23, 9, 23, 9, 2, 30, 2, 30, 2, 30, 2, 30, 2, 30, 2, 30, 2, 30, 2, 30
+c_ang8_src5_13_6_14:  db 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13
+c_ang8_19_8:          db 13, 19, 13, 19, 13, 19, 13, 19, 13, 19, 13, 19, 13, 19, 13, 19, 24, 8, 24, 8, 24, 8, 24, 8, 24, 8, 24, 8, 24, 8, 24, 8
+
 ;; (blkSize - 1 - x)
 pw_planar4_0:         dw 3,  2,  1,  0,  3,  2,  1,  0
 pw_planar4_1:         dw 3,  3,  3,  3,  3,  3,  3,  3
@@ -32123,3 +32131,38 @@
     movhps            [r0 + 2 * r1], xm4
     movhps            [r0 + r3], xm2
     RET
+
+INIT_YMM avx2
+cglobal intra_pred_ang8_32, 3,4,5
+    movu              m3, [pw_1024]
+    vbroadcasti128    m0, [r2 + 1]
+
+    pshufb            m1, m0, [c_ang8_src1_9_2_10]
+    pshufb            m2, m0, [c_ang8_src2_10_3_11]
+    pshufb            m4, m0, [c_ang8_src4_12_4_12]
+    pshufb            m0,     [c_ang8_src5_13_6_14]
+
+    pmaddubsw         m1, [c_ang8_21_10]
+    pmulhrsw          m1, m3
+    pmaddubsw         m2, [c_ang8_31_20]
+    pmulhrsw          m2, m3
+    pmaddubsw         m4, [c_ang8_9_30]
+    pmulhrsw          m4, m3
+    pmaddubsw         m0, [c_ang8_19_8]
+    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