[x265] [PATCH 07 of 18] asm: intra_pred_ang4_8_sse2 16-bit

[dtyx265 at gmail.com]

# HG changeset patch
# User David T Yuen <dtyx265 at gmail.com>
# Date 1428075423 25200
# Node ID 1873e34b04005449ecf3ec45d1c0de3a7c54ff86
# Parent  1304bb9e3956f88bf89211db8846693faeb1a666
asm: intra_pred_ang4_8_sse2 16-bit

This is backported from sse4 code and replaces c code.

./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[ 8\]"
intra_ang_4x4[ 8]	4.34x 	 460.13   	 1994.96

transposed mode

./test/TestBench --testbench intrapred | grep "intra_ang_4x4\[28\]"
intra_ang_4x4[28]	3.63x 	 402.73   	 1461.14

diff -r 1304bb9e3956 -r 1873e34b0400 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp	Fri Apr 03 08:34:09 2015 -0700
+++ b/source/common/x86/asm-primitives.cpp	Fri Apr 03 08:37:03 2015 -0700
@@ -888,6 +888,8 @@
         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].intra_pred[7] = x265_intra_pred_ang4_7_sse2;
+        p.cu[BLOCK_4x4].intra_pred[8] = x265_intra_pred_ang4_8_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;
         p.cu[BLOCK_4x4].intra_pred[30] = x265_intra_pred_ang4_6_sse2;
         p.cu[BLOCK_4x4].intra_pred[31] = x265_intra_pred_ang4_5_sse2;
diff -r 1304bb9e3956 -r 1873e34b0400 source/common/x86/intrapred16.asm
--- a/source/common/x86/intrapred16.asm	Fri Apr 03 08:34:09 2015 -0700
+++ b/source/common/x86/intrapred16.asm	Fri Apr 03 08:37:03 2015 -0700
@@ -875,6 +875,27 @@
     mova        m7, [r3 - 16 * 16]  ; [ 4]
     jmp         mangle(private_prefix %+ _ %+ intra_pred_ang4_3 %+ SUFFIX %+ .do_filter4x4)
 
+cglobal intra_pred_ang4_8, 3,5,8
+    mov         r4d, 2
+    cmp         r3m, byte 28
+    mov         r3d, 18
+    cmove       r3d, r4d
+
+    movu        m0, [r2 + r3]   ; [8 7 6 5 4 3 2 1]
+    mova        m2, m0
+    psrldq      m0, 2
+    punpcklwd   m2, m0      ; [5 4 4 3 3 2 2 1]
+    mova        m3, m2
+    mova        m4, m2
+    mova        m5, m2
+
+    lea         r3, [ang_table + 13 * 16]
+    mova        m0, [r3 -  8 * 16]  ; [ 5]
+    mova        m1, [r3 -  3 * 16]  ; [10]
+    mova        m6, [r3 +  2 * 16]  ; [15]
+    mova        m7, [r3 +  7 * 16]  ; [20]
+    jmp         mangle(private_prefix %+ _ %+ intra_pred_ang4_3 %+ SUFFIX %+ .do_filter4x4)
+
 ;-----------------------------------------------------------------------------------
 ; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel* above, int, int filter)
 ;-----------------------------------------------------------------------------------