# HG changeset patch
# User David T Yuen <[email protected]>
# Date 1425013413 28800
# Node ID 30df8e0058c7ca1fe1a59a7e8bce344071348641
# Parent fb806a6bebfa6312a2657b1978162f0c3e4ef2b9
asm: intrapred dc8 sse2 high bit
This replaces c code for systems using ssse3 to sse2 processors
The code is backported from intrapred dc8 sse4 high bit
./test/TestBench --testbench intrapred | grep 8x8
intra_dc_8x8[f=0] 1.64x 443.75 729.49
intra_dc_8x8[f=1] 1.61x 720.21 1160.18
diff -r fb806a6bebfa -r 30df8e0058c7 source/common/x86/asm-primitives.cpp
--- a/source/common/x86/asm-primitives.cpp Thu Feb 26 18:59:18 2015 -0800
+++ b/source/common/x86/asm-primitives.cpp Thu Feb 26 21:03:33 2015 -0800
@@ -869,6 +869,7 @@
ALL_LUMA_TU_S(transpose, transpose, sse2);
p.cu[BLOCK_4x4].intra_pred[DC_IDX] = x265_intra_pred_dc4_sse2;
+ p.cu[BLOCK_8x8].intra_pred[DC_IDX] = x265_intra_pred_dc8_sse2;
p.cu[BLOCK_4x4].sse_ss = x265_pixel_ssd_ss_4x4_mmx2;
ALL_LUMA_CU(sse_ss, pixel_ssd_ss, sse2);
diff -r fb806a6bebfa -r 30df8e0058c7 source/common/x86/intrapred16.asm
--- a/source/common/x86/intrapred16.asm Thu Feb 26 18:59:18 2015 -0800
+++ b/source/common/x86/intrapred16.asm Thu Feb 26 21:03:33 2015 -0800
@@ -165,6 +165,90 @@
;-----------------------------------------------------------------------------------
; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel* above, int, int
filter)
;-----------------------------------------------------------------------------------
+INIT_XMM sse2
+cglobal intra_pred_dc8, 5, 8, 2
+ add r2, 2
+ add r1, r1
+ movu m0, [r2 + 32]
+ movu m1, [r2]
+
+ paddw m0, m1
+ movhlps m1, m0
+ paddw m0, m1
+ pshufd m1, m0, 1
+ paddw m0, m1
+ pmaddwd m0, [pw_1]
+
+ paddw m0, [pw_8]
+ psraw m0, 4 ; sum = sum / 16
+ pshuflw m0, m0, 0
+ pshufd m0, m0, 0 ; m0 = word [dc_val ...]
+
+ test r4d, r4d
+
+ ; store DC 8x8
+ lea r6, [r1 + r1 * 2]
+ lea r5, [r6 + r1 * 2]
+ lea r7, [r6 + r1 * 4]
+ movu [r0], m0
+ movu [r0 + r1], m0
+ movu [r0 + r1 * 2], m0
+ movu [r0 + r6], m0
+ movu [r0 + r1 * 4], m0
+ movu [r0 + r5], m0
+ movu [r0 + r6 * 2], m0
+ movu [r0 + r7], m0
+
+ ; Do DC Filter
+ jz .end
+ mova m1, [pw_2]
+ pmullw m1, m0
+ paddw m1, [pw_2]
+ movd r4d, m1 ; r4d = DC * 2 + 2
+ paddw m1, m0 ; m1 = DC * 3 + 2
+ pshuflw m1, m1, 0
+ pshufd m1, m1, 0 ; m1 = pixDCx3
+
+ ; filter top
+ movu m0, [r2]
+ paddw m0, m1
+ psraw m0, 2
+ movu [r0], m0
+
+ ; filter top-left
+ movzx r4d, r4w
+ movzx r3d, word [r2 + 32]
+ add r4d, r3d
+ movzx r3d, word [r2]
+ add r3d, r4d
+ shr r3d, 2
+ mov [r0], r3w
+
+ ; filter left
+ movu m0, [r2 + 34]
+ paddw m0, m1
+ psraw m0, 2
+ movh r3, m0
+ mov [r0 + r1], r3w
+ shr r3, 16
+ mov [r0 + r1 * 2], r3w
+ shr r3, 16
+ mov [r0 + r6], r3w
+ shr r3, 16
+ mov [r0 + r1 * 4], r3w
+ pshufd m0, m0, 0x6E
+ movh r3, m0
+ mov [r0 + r5], r3w
+ shr r3, 16
+ mov [r0 + r6 * 2], r3w
+ shr r3, 16
+ mov [r0 + r7], r3w
+.end:
+ RET
+
+;-----------------------------------------------------------------------------------
+; void intra_pred_dc(pixel* dst, intptr_t dstStride, pixel* above, int, int
filter)
+;-----------------------------------------------------------------------------------
INIT_XMM sse4
cglobal intra_pred_dc4, 5,6,2
lea r3, [r2 + 18]
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