[x265] [PATCH 5 of 8] asm:intra_pred_ang4_6_sse2

[dtyx265 at gmail.com]

# HG changeset patch
# User David T Yuen <dtyx265 at gmail.com>
# Date 1427140896 25200
# Node ID 36d7d61899a2a184241491d8512e151dab5abc2b
# Parent  19369b122731cd825114718d967c62ade5d7e1df
asm:intra_pred_ang4_6_sse2

This is backported from sse4 code and replaces c code.

64-bit

./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[ 6\]"
intra_ang_4x4[ 6]	2.92x 	 655.00   	 1914.97

32-bit

./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[ 6\]"
intra_ang_4x4[ 6]	3.96x 	 717.58   	 2844.93

diff -r 19369b122731 -r 36d7d61899a2 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp	Mon Mar 23 12:57:42 2015 -0700
+++ b/source/common/x86/asm-primitives.cpp	Mon Mar 23 13:01:36 2015 -0700
@@ -1200,6 +1200,7 @@
         p.cu[BLOCK_4x4].intra_pred[3] = x265_intra_pred_ang4_3_sse2;
         p.cu[BLOCK_4x4].intra_pred[4] = x265_intra_pred_ang4_4_sse2;
         p.cu[BLOCK_4x4].intra_pred[5] = x265_intra_pred_ang4_5_sse2;
+        p.cu[BLOCK_4x4].intra_pred[6] = x265_intra_pred_ang4_6_sse2;
 
         p.cu[BLOCK_4x4].calcresidual = x265_getResidual4_sse2;
         p.cu[BLOCK_8x8].calcresidual = x265_getResidual8_sse2;
diff -r 19369b122731 -r 36d7d61899a2 source/common/x86/intrapred.h
--- a/source/common/x86/intrapred.h	Mon Mar 23 12:57:42 2015 -0700
+++ b/source/common/x86/intrapred.h	Mon Mar 23 13:01:36 2015 -0700
@@ -51,6 +51,7 @@
 DECL_ANG(4, 3, sse2);
 DECL_ANG(4, 4, sse2);
 DECL_ANG(4, 5, sse2);
+DECL_ANG(4, 6, sse2);
 
 DECL_ANG(4, 2, ssse3);
 DECL_ANG(4, 3, sse4);
diff -r 19369b122731 -r 36d7d61899a2 source/common/x86/intrapred8.asm
--- a/source/common/x86/intrapred8.asm	Mon Mar 23 12:57:42 2015 -0700
+++ b/source/common/x86/intrapred8.asm	Mon Mar 23 13:01:36 2015 -0700
@@ -1265,6 +1265,29 @@
     mova        m7, [r3 -  6 * 16]  ; [ 4]
     jmp         mangle(private_prefix %+ _ %+ intra_pred_ang4_3 %+ SUFFIX %+ .do_filter4x4)
 
+cglobal intra_pred_ang4_6, 3,5,8
+    xor         r4, r4
+    inc         r4
+    cmp         r3m, byte 30
+    mov         r3, 9
+    cmove       r3, r4
+
+    movh        m0, [r2 + r3]    ; [8 7 6 5 4 3 2 1]
+    mova        m1, m0
+    psrldq      m1, 1           ; [x 8 7 6 5 4 3 2]
+    punpcklbw   m0, m1          ; [x 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1]
+    mova        m2, m0
+    psrldq      m2, 2           ; [x x x x x x x x 6 5 5 4 4 3 3 2]
+    punpcklqdq  m0, m0
+    punpcklqdq  m2, m2
+
+    lea         r3, [pw_ang_table + 19 * 16]
+    mova        m4, [r3 -  6 * 16]  ; [13]
+    mova        m5, [r3 +  7 * 16]  ; [26]
+    mova        m6, [r3 - 12 * 16]  ; [ 7]
+    mova        m7, [r3 +  1 * 16]  ; [20]
+    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)
 ;---------------------------------------------------------------------------------------------