[x265] Fwd: [PATCH] asm: avx2 code for weight_sp() 16bpp
Praveen Tiwari
praveen at multicorewareinc.com
Tue Jun 30 11:42:47 CEST 2015
---------- Forwarded message ----------
From: <aasaipriya at multicorewareinc.com>
Date: Mon, Jun 29, 2015 at 4:51 PM
Subject: [x265] [PATCH] asm: avx2 code for weight_sp() 16bpp
To: x265-devel at videolan.org
# HG changeset patch
# User Aasaipriya Chandran <aasaipriya at multicorewareinc.com>
# Date 1435562395 -19800
# Mon Jun 29 12:49:55 2015 +0530
# Node ID bebe4e496a432608cf0a9c495debd1970caa387e
# Parent 9feee64efa440c25f016d15ae982789e5393a77e
asm: avx2 code for weight_sp() 16bpp
avx2: weight_sp 11.37x 4496.63 51139.20
sse4: weight_sp 6.48x 8163.87 52870.36
diff -r 9feee64efa44 -r bebe4e496a43 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp Fri Jun 26 15:29:51 2015
+0530
+++ b/source/common/x86/asm-primitives.cpp Mon Jun 29 12:49:55 2015
+0530
@@ -1517,6 +1517,7 @@
p.scale1D_128to64 = PFX(scale1D_128to64_avx2);
p.scale2D_64to32 = PFX(scale2D_64to32_avx2);
p.weight_pp = PFX(weight_pp_avx2);
+ p.weight_sp = PFX(weight_sp_avx2);
p.sign = PFX(calSign_avx2);
p.cu[BLOCK_16x16].calcresidual = PFX(getResidual16_avx2);
diff -r 9feee64efa44 -r bebe4e496a43 source/common/x86/pixel-util8.asm
--- a/source/common/x86/pixel-util8.asm Fri Jun 26 15:29:51 2015 +0530
+++ b/source/common/x86/pixel-util8.asm Mon Jun 29 12:49:55 2015 +0530
@@ -1674,8 +1674,128 @@
dec r5d
jnz .loopH
RET
-
-%if ARCH_X86_64
+%endif
+
+
+%if HIGH_BIT_DEPTH
+INIT_YMM avx2
+cglobal weight_sp, 6,7,9
+ mova m1, [pw_1023]
+ mova m2, [pw_1]
+ mov r6d, r7m
r7 is 8th register (0-7). so it should be cglobal weight_sp, 6, 8, 9
and ARCH_X86_64
only code.
+ shl r6d, 16
+ or r6d, r6m
+ vpbroadcastd m3, r6d ; m3 = [round w0]
+ movd xm4, r8m ; m4 = [shift]
+ vpbroadcastd m5, r9m ; m5 = [offset]
+
+ ; correct row stride
+ add r3d, r3d
+ add r2d, r2d
+ mov r6d, r4d
+ and r6d, ~(mmsize / SIZEOF_PIXEL - 1)
+ sub r3d, r6d
+ sub r3d, r6d
+ sub r2d, r6d
+ sub r2d, r6d
+
+ ; generate partial width mask (MUST BE IN YMM0)
+ mov r6d, r4d
+ and r6d, (mmsize / SIZEOF_PIXEL - 1)
+ movd xm0, r6d
+ pshuflw m0, m0, 0
+ punpcklqdq m0, m0
+ vinserti128 m0, m0, xm0, 1
+ pcmpgtw m0, [pw_0_15]
+
+.loopH:
+ mov r6d, r4d
+
+.loopW:
+ movu m6, [r0]
+ paddw m6, [pw_2000]
+
+ punpcklwd m7, m6, m2
+ pmaddwd m7, m3 ;(round w0)
+ psrad m7, xm4 ;(shift)
+ paddd m7, m5 ;(offset)
+
+ punpckhwd m6, m2
+ pmaddwd m6, m3
+ psrad m6, xm4
+ paddd m6, m5
+
+ packusdw m7, m6
+ pminuw m7, m1
+
+ sub r6d, (mmsize / SIZEOF_PIXEL)
+ jl .width14
+ movu [r1], m7
+ lea r0, [r0 + mmsize]
+ lea r1, [r1 + mmsize]
+ je .nextH
+ jmp .loopW
+
+.width14:
+ add r6d, 16
+ cmp r6d, 14
+ jl .width12
+ movu [r1], xm7
+ vextracti128 xm8, m7, 1
+ movq [r1 + 16], xm8
+ pextrd [r1 + 24], xm8, 2
+ je .nextH
+
+.width12:
+ cmp r6d, 12
+ jl .width10
+ movu [r1], xm7
+ vextracti128 xm8, m7, 1
+ movq [r1 + 16], xm8
+ je .nextH
+
+.width10:
+ cmp r6d, 10
+ jl .width8
+ movu [r1], xm7
+ vextracti128 xm8, m7, 1
+ movd [r1 + 16], xm8
+ je .nextH
+
+.width8:
+ cmp r6d, 8
+ jl .width6
+ movu [r1], xm7
+ je .nextH
+
+.width6
+ cmp r6d, 6
+ jl .width4
+ movq [r1], xm7
+ pextrd [r1 + 8], xm7, 2
+ je .nextH
+
+.width4:
+ cmp r6d, 4
+ jl .width2
+ movq [r1], xm7
+ je .nextH
+ add r1, 4
+ pshufd m6, m6, 1
+ je .nextH
+
+.width2:
+ movd [r1], xm7
+
+.nextH:
+ add r0, r2
+ add r1, r3
+
+ dec r5d
+ jnz .loopH
+ RET
+
+%else
INIT_YMM avx2
cglobal weight_sp, 6, 9, 7
mov r7d, r7m
@@ -1752,8 +1872,6 @@
jnz .loopH
RET
%endif
-%endif ; end of (HIGH_BIT_DEPTH == 0)
-
;-----------------------------------------------------------------
; void transpose_4x4(pixel *dst, pixel *src, intptr_t stride)
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