[x265] [PATCH 014 of 307] x86: AVX512 scale1D_128to64
mythreyi at multicorewareinc.com
mythreyi at multicorewareinc.com
Sat Apr 7 04:30:12 CEST 2018
# HG changeset patch
# User Vignesh Vijayakumar
# Date 1499342544 -19800
# Thu Jul 06 17:32:24 2017 +0530
# Node ID 7283818f2dd7191c8258030c7424fa6b4ed5330f
# Parent e59a457cfe6c0e2cd4137bf3337a2a2d0a815850
x86: AVX512 scale1D_128to64
AVX2 performance over C code : 14.61x
AVX512 performance over C code : 16.19x
diff -r e59a457cfe6c -r 7283818f2dd7 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp Thu Jul 06 17:00:09 2017 +0530
+++ b/source/common/x86/asm-primitives.cpp Thu Jul 06 17:32:24 2017 +0530
@@ -3783,6 +3783,8 @@
p.chroma[X265_CSP_I422].cu[CHROMA_422_32x64].copy_ps = PFX(blockcopy_ps_32x64_avx512);
p.cu[BLOCK_64x64].copy_ps = PFX(blockcopy_ps_64x64_avx512);
+ p.scale1D_128to64 = PFX(scale1D_128to64_avx512);
+
}
#endif
}
diff -r e59a457cfe6c -r 7283818f2dd7 source/common/x86/pixel-util.h
--- a/source/common/x86/pixel-util.h Thu Jul 06 17:00:09 2017 +0530
+++ b/source/common/x86/pixel-util.h Thu Jul 06 17:32:24 2017 +0530
@@ -44,6 +44,7 @@
DEFINE_UTILS(ssse3);
DEFINE_UTILS(sse4);
DEFINE_UTILS(avx2);
+DEFINE_UTILS(avx512);
#undef DEFINE_UTILS
diff -r e59a457cfe6c -r 7283818f2dd7 source/common/x86/pixel-util8.asm
--- a/source/common/x86/pixel-util8.asm Thu Jul 06 17:00:09 2017 +0530
+++ b/source/common/x86/pixel-util8.asm Thu Jul 06 17:32:24 2017 +0530
@@ -4062,6 +4062,39 @@
RET
%endif
+%if HIGH_BIT_DEPTH == 0
+INIT_ZMM avx512
+cglobal scale1D_128to64, 2, 2, 6
+ pxor m4, m4
+ vbroadcasti32x8 m5, [pb_1]
+
+ ;Top pixel
+ movu m0, [r1]
+ movu m1, [r1 + 64]
+ movu m2, [r1 + 128]
+ movu m3, [r1 + 192]
+
+ pmaddubsw m0, m0, m5
+ pavgw m0, m4
+ pmaddubsw m1, m1, m5
+ pavgw m1, m4
+ packuswb m0, m1
+ vpermq m0, m0, q3120
+ vshufi64x2 m0, m0, q3120
+ movu [r0], m0
+
+ ;Left pixel
+ pmaddubsw m2, m2, m5
+ pavgw m2, m4
+ pmaddubsw m3, m3, m5
+ pavgw m3, m4
+ packuswb m2, m3
+ vpermq m2, m2, q3120
+ vshufi64x2 m2, m2, q3120
+ movu [r0 + 64], m2
+ RET
+%endif
+
;-----------------------------------------------------------------
; void scale2D_64to32(pixel *dst, pixel *src, intptr_t stride)
;-----------------------------------------------------------------
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