From 1e7ded69cfaff55c80de1308820031e9a0a01e1a Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rbultje@google.com>
Date: Wed, 27 Apr 2011 13:49:21 -0700
Subject: [PATCH] Use psadbw to get the sum of bytes in a line.
Thanks Jason for pointing that out on #vp8. ;-).
Change-Id: I5330a753e752a8704b78a409597472628e0b26a5
---
vp8/common/x86/recon_sse2.asm | 22 ++++------------------
1 file changed, 4 insertions(+), 18 deletions(-)
diff --git a/vp8/common/x86/recon_sse2.asm b/vp8/common/x86/recon_sse2.asm
index a1cc2b1fef..97dc4f6866 100644
--- a/vp8/common/x86/recon_sse2.asm
+++ b/vp8/common/x86/recon_sse2.asm
@@ -251,15 +251,8 @@ sym(vp8_intra_pred_uv_dc_mmx2):
movsxd rax, dword ptr arg(3) ;src_stride;
sub rsi, rax
pxor mm0, mm0
- movd mm1, [rsi]
- movd mm2, [rsi+4]
- punpcklbw mm1, mm0
- punpcklbw mm2, mm0
- paddw mm1, mm2
- pshufw mm2, mm1, 0x0e
- paddw mm1, mm2
- pshufw mm2, mm1, 0x01
- paddw mm1, mm2
+ movq mm1, [rsi]
+ psadbw mm1, mm0
; from left
dec rsi
@@ -331,15 +324,8 @@ sym(vp8_intra_pred_uv_dctop_mmx2):
movsxd rax, dword ptr arg(3) ;src_stride;
sub rsi, rax
pxor mm0, mm0
- movd mm1, [rsi]
- movd mm2, [rsi+4]
- punpcklbw mm1, mm0
- punpcklbw mm2, mm0
- paddw mm1, mm2
- pshufw mm2, mm1, 0x0e
- paddw mm1, mm2
- pshufw mm2, mm1, 0x01
- paddw mm1, mm2
+ movq mm1, [rsi]
+ psadbw mm1, mm0
; add up
paddw mm1, [GLOBAL(dc_4)]
--
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