# HG changeset patch
# User David T Yuen <[email protected]>
# Date 1424810386 28800
# Node ID 8528fea56a4202c871544621d5806ee686e671fc
# Parent 7252c10278a1e1aeddbe489180aad35196262919
asm: intrapred dc4 sse2
This replaces c code for systems using ssse3 to sse2 processors
The code is backported from intrapred dc4 sse4
./test/TestBench --testbench intrapred
Testing only harnesses that match name <intrapred>
Using random seed 54ECE101 8bpp
Testing primitives: SSE2
Testing primitives: SSE3
Test performance improvement with full optimizations
== intrapred primitives ==
intra_dc_4x4[f=0] 1.26x 192.96 242.35
intra_dc_4x4[f=1] 1.25x 409.99 512.69
diff -r 7252c10278a1 -r 8528fea56a42 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp Mon Feb 23 23:11:49 2015 -0600
+++ b/source/common/x86/asm-primitives.cpp Tue Feb 24 12:39:46 2015 -0800
@@ -1071,6 +1071,8 @@
ALL_LUMA_TU_S(cpy1Dto2D_shr, cpy1Dto2D_shr_, sse2);
ALL_LUMA_TU_S(ssd_s, pixel_ssd_s_, sse2);
+ p.cu[BLOCK_4x4].intra_pred[DC_IDX] = x265_intra_pred_dc4_sse2;
+
p.cu[BLOCK_4x4].calcresidual = x265_getResidual4_sse2;
p.cu[BLOCK_8x8].calcresidual = x265_getResidual8_sse2;
diff -r 7252c10278a1 -r 8528fea56a42 source/common/x86/intrapred.h
--- a/source/common/x86/intrapred.h Mon Feb 23 23:11:49 2015 -0600
+++ b/source/common/x86/intrapred.h Tue Feb 24 12:39:46 2015 -0800
@@ -26,6 +26,7 @@
#ifndef X265_INTRAPRED_H
#define X265_INTRAPRED_H
+void x265_intra_pred_dc4_sse2 (pixel* dst, intptr_t dstStride, const
pixel*srcPix, int, int filter);
void x265_intra_pred_dc4_sse4 (pixel* dst, intptr_t dstStride, const
pixel*srcPix, int, int filter);
void x265_intra_pred_dc8_sse4(pixel* dst, intptr_t dstStride, const pixel*
srcPix, int, int filter);
void x265_intra_pred_dc16_sse4(pixel* dst, intptr_t dstStride, const
pixel* srcPix, int, int filter);
diff -r 7252c10278a1 -r 8528fea56a42 source/common/x86/intrapred8.asm
--- a/source/common/x86/intrapred8.asm Mon Feb 23 23:11:49 2015 -0600
+++ b/source/common/x86/intrapred8.asm Tue Feb 24 12:39:46 2015 -0800
@@ -65,6 +65,8 @@
pw_planar32_L: dw 31, 30, 29, 28, 27, 26, 25, 24
pw_planar32_H: dw 23, 22, 21, 20, 19, 18, 17, 16
+pw_257: times 8 dw 257
+
const ang_table
%assign x 0
%rep 32
@@ -89,6 +91,71 @@
;---------------------------------------------------------------------------------------------
; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel *srcPix, int
dirMode, int bFilter)
;---------------------------------------------------------------------------------------------
+INIT_XMM sse2
+cglobal intra_pred_dc4, 5,5,3
+ inc r2
+ pxor m0, m0
+ movu m1, [r2]
+ pshufd m1, m1, 0xF8
+ psadbw m1, m0 ; m1 = sum
+
+ test r4d, r4d
+
+ paddw m1, [pw_4]
+ psraw m1, 3
+ movd r4d, m1 ; r4d = dc_val
+ pmullw m1, [pw_257]
+ pshuflw m1, m1, 0x00
+
+ ; store DC 4x4
+ lea r3, [r1 * 3]
+ movd [r0], m1
+ movd [r0 + r1], m1
+ movd [r0 + r1 * 2], m1
+ movd [r0 + r3], m1
+
+ ; do DC filter
+ jz .end
+ lea r3d, [r4d * 2 + 2] ; r3d = DC * 2 + 2
+ add r4d, r3d ; r4d = DC * 3 + 2
+ movd m1, r4d
+ pshuflw m1, m1, 0 ; m1 = pixDCx3
+
+ ; filter top
+ movd m2, [r2]
+ punpcklbw m2, m0
+ paddw m2, m1
+ psraw m2, 2
+ packuswb m2, m2
+ movd [r0], m2 ; overwrite top-left pixel, we will
update it later
+
+ ; filter top-left
+ movzx r4d, byte [r2 + 8]
+ add r3d, r4d
+ movzx r4d, byte [r2]
+ add r3d, r4d
+ shr r3d, 2
+ mov [r0], r3b
+
+ ; filter left
+ add r0, r1
+ movq m2, [r2 + 9]
+ punpcklbw m2, m0
+ paddw m2, m1
+ psraw m2, 2
+ packuswb m2, m2
+ movq r4, m2
+ mov [r0], r4b
+ shr r4, 8
+ mov [r0 + r1], r4b
+ shr r4, 8
+ mov [r0 + r1 * 2], r4b
+.end:
+ RET
+
+;---------------------------------------------------------------------------------------------
+; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel *srcPix, int
dirMode, int bFilter)
+;---------------------------------------------------------------------------------------------
INIT_XMM sse4
cglobal intra_pred_dc4, 5,5,3
inc r2
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