[x265] [PATCH 06 of 11] asm: intra_pred_ang4_15_sse2

[dtyx265 at gmail.com]

# HG changeset patch
# User David T Yuen <dtyx265 at gmail.com>
# Date 1427917151 25200
# Node ID 5c8b81ca03a7108a964bfca49a941acae1a732fa
# Parent  6914a5171bcf1115c7c0370c3cde91d770f27a08
asm: intra_pred_ang4_15_sse2

This is backported from sse4 code and replaces c code.

64-bit

./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[15\]"
intra_ang_4x4[15]	3.04x 	 680.00   	 2067.87

32-bit

./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[15\]"
intra_ang_4x4[15]	4.10x 	 732.49   	 3002.96

diff -r 6914a5171bcf -r 5c8b81ca03a7 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp	Wed Apr 01 12:35:05 2015 -0700
+++ b/source/common/x86/asm-primitives.cpp	Wed Apr 01 12:39:11 2015 -0700
@@ -1209,6 +1209,7 @@
         p.cu[BLOCK_4x4].intra_pred[12] = x265_intra_pred_ang4_12_sse2;
         p.cu[BLOCK_4x4].intra_pred[13] = x265_intra_pred_ang4_13_sse2;
         p.cu[BLOCK_4x4].intra_pred[14] = x265_intra_pred_ang4_14_sse2;
+        p.cu[BLOCK_4x4].intra_pred[15] = x265_intra_pred_ang4_15_sse2;
         p.cu[BLOCK_4x4].intra_pred[26] = x265_intra_pred_ang4_26_sse2;
 
         p.cu[BLOCK_4x4].calcresidual = x265_getResidual4_sse2;
diff -r 6914a5171bcf -r 5c8b81ca03a7 source/common/x86/intrapred.h
--- a/source/common/x86/intrapred.h	Wed Apr 01 12:35:05 2015 -0700
+++ b/source/common/x86/intrapred.h	Wed Apr 01 12:39:11 2015 -0700
@@ -60,6 +60,7 @@
 DECL_ANG(4, 12, sse2);
 DECL_ANG(4, 13, sse2);
 DECL_ANG(4, 14, sse2);
+DECL_ANG(4, 15, sse2);
 DECL_ANG(4, 26, sse2);
 
 DECL_ANG(4, 2, ssse3);
diff -r 6914a5171bcf -r 5c8b81ca03a7 source/common/x86/intrapred8.asm
--- a/source/common/x86/intrapred8.asm	Wed Apr 01 12:35:05 2015 -0700
+++ b/source/common/x86/intrapred8.asm	Wed Apr 01 12:39:11 2015 -0700
@@ -1713,6 +1713,38 @@
     mova        m7, [r3 -  7 * 16]  ; [12]
     jmp         mangle(private_prefix %+ _ %+ intra_pred_ang4_3 %+ SUFFIX %+ .do_filter4x4)
 
+cglobal intra_pred_ang4_15, 3,5,8
+    xor         r4d, r4d
+    cmp         r3m, byte 21
+    mov         r3d, 8
+    jz          .next
+    xchg        r3d, r4d
+
+.next:
+    movd        m0, [r2]                ;[x x x A]
+    movd        m1, [r2 + r3 + 2]       ;[x x x B]
+    punpcklbw   m1, m0                  ;[x x A B]
+    movd        m0, [r2 + r3 + 3]       ;[x x C x]
+    punpcklwd   m0, m1                  ;[A B C x]
+    movd        m1, [r2 + r4 + 1]       ;[4 3 2 1]
+    punpckldq   m0, m1                  ;[4 3 2 1 A B C x]
+    psrldq      m0, 1                   ;[x 4 3 2 1 A B C]
+    punpcklbw   m0, m0                  ;[x x 4 4 3 3 2 2 1 1 A A B B C C]
+    psrldq      m0, 1
+    movh        m1, m0
+    psrldq      m0, 2
+    movh        m2, m0
+    psrldq      m0, 2
+    punpcklqdq  m0, m2
+    punpcklqdq  m2, m1
+
+    lea         r3, [pw_ang_table + 23 * 16]
+    mova        m4, [r3 -  8 * 16]  ; [15]
+    mova        m5, [r3 +  7 * 16]  ; [30]
+    mova        m6, [r3 - 10 * 16]  ; [13]
+    mova        m7, [r3 +  5 * 16]  ; [28]
+    jmp         mangle(private_prefix %+ _ %+ intra_pred_ang4_3 %+ SUFFIX %+ .do_filter4x4)
+
 ;---------------------------------------------------------------------------------------------
 ; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel *srcPix, int dirMode, int bFilter)
 ;---------------------------------------------------------------------------------------------