[x265] [PATCH] Luma_hpp[16x16] avx2 asm code : improved 2307c->1695c

[aasaipriya at multicorewareinc.com]

# HG changeset patch
# User Aasaipriya
# Date 1415788047 -19800
#      Wed Nov 12 15:57:27 2014 +0530
# Node ID f0a17f2b4c22ff8aa05afb40e3360e5ac03590a6
# Parent  98fb658f3229ab10e808204c265a12e18d71638e
Luma_hpp[16x16] avx2 asm code : improved 2307c->1695c

diff -r 98fb658f3229 -r f0a17f2b4c22 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp	Tue Nov 11 19:30:19 2014 +0900
+++ b/source/common/x86/asm-primitives.cpp	Wed Nov 12 15:57:27 2014 +0530
@@ -1799,6 +1799,7 @@
         p.transpose[BLOCK_64x64] = x265_transpose64_avx2;
 #endif
         p.luma_hpp[LUMA_4x4] = x265_interp_8tap_horiz_pp_4x4_avx2;
+        p.luma_hpp[LUMA_16x16] = x265_interp_8tap_horiz_pp_16x16_avx2;
         p.luma_vpp[LUMA_4x4] = x265_interp_8tap_vert_pp_4x4_avx2;
     }
 #endif // if HIGH_BIT_DEPTH
diff -r 98fb658f3229 -r f0a17f2b4c22 source/common/x86/ipfilter8.asm
--- a/source/common/x86/ipfilter8.asm	Tue Nov 11 19:30:19 2014 +0900
+++ b/source/common/x86/ipfilter8.asm	Wed Nov 12 15:57:27 2014 +0530
@@ -854,6 +854,58 @@
     RET
 
 
+INIT_YMM avx2
+cglobal interp_8tap_horiz_pp_16x16, 4,6,8
+    sub             r0, 3
+    mov             r4d, r4m
+%ifdef PIC
+    lea             r5, [tab_LumaCoeff]
+    vpbroadcastd    m0, [r5 + r4 * 8]
+    vpbroadcastd    m1, [r5 + r4 * 8 + 4]
+%else
+    vpbroadcastd    m0, [tab_LumaCoeff + r4 * 8]
+    vpbroadcastd    m1, [tab_LumaCoeff + r4 * 8 + 4]
+%endif
+    mova            m2, [tab_Tm]
+    movu            m3, [tab_Tm + 16]
+    vpbroadcastd    m7, [pw_1]
+
+    ; register map
+    ; m0 , m1 interpolate coeff
+    ; m2 , m2  shuffle order table
+    ; m7 - pw_1
+
+    mov             r4d,  16
+.loop:
+    ; Row 0
+    vbroadcasti128  m4, [r0]                        ; [x E D C B A 9 8 7 6 5 4 3 2 1 0]
+    pshufb          m5, m4, m3
+    pshufb          m4, m2
+    pmaddubsw       m4, m0
+    pmaddubsw       m5, m1
+    paddw           m4, m5
+    pmaddwd         m4, m7
+    vbroadcasti128  m5, [r0 + 8]                    ; second 8 elements in Row0 
+    pshufb          m6, m5, m3
+    pshufb          m5, m2
+    pmaddubsw       m5, m0
+    pmaddubsw       m6, m1
+    paddw           m5, m6
+    pmaddwd         m5, m7
+    packssdw        m4, m5                          ; [17 16 15 14 07 06 05 04 13 12 11 10 03 02 01 00]
+    pmulhrsw        m4, [pw_512]
+    packuswb        m4, m4
+    vpermq          m4, m4, 11011000b
+    pshufd          xm4, xm4, 11011000b
+    movq            [r2], xm4
+    movhps          [r2 + 8], xm4
+    lea             r0, [r0 + r1]
+    lea             r2, [r2 + r3]
+    dec             r4d
+    jnz             .loop
+    RET
+
+
 ;--------------------------------------------------------------------------------------------------------------
 ; void interp_8tap_horiz_pp_%1x%2(pixel *src, intptr_t srcStride, pixel *dst, intptr_t dstStride, int coeffIdx)
 ;--------------------------------------------------------------------------------------------------------------