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vpx/vp8/common/x86/sad_sse2.asm
Johann 1161055129 Be consistent with SAD values 
SAD returns unsigned values. Make all the declarations the same.

Remove bestsad initialization and check. It is always set to the
result of a SAD call so it will never remain UINT_MAX

Use ja instead of jg to test unsigned comparison instead of signed.

Update test.

Change-Id: I46336ab45f4e60fc37caf20bd36bc5782079c7a5
2012-07-27 16:15:31 -07:00

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;
; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
%include "vpx_ports/x86_abi_support.asm"
;unsigned int vp8_sad16x16_wmt(
; unsigned char *src_ptr,
; int src_stride,
; unsigned char *ref_ptr,
; int ref_stride)
global sym(vp8_sad16x16_wmt) PRIVATE
sym(vp8_sad16x16_wmt):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 4
SAVE_XMM 6
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;src_ptr
mov rdi, arg(2) ;ref_ptr
movsxd rax, dword ptr arg(1) ;src_stride
movsxd rdx, dword ptr arg(3) ;ref_stride
lea rcx, [rsi+rax*8]
lea rcx, [rcx+rax*8]
pxor xmm6, xmm6
.x16x16sad_wmt_loop:
movq xmm0, QWORD PTR [rsi]
movq xmm2, QWORD PTR [rsi+8]
movq xmm1, QWORD PTR [rdi]
movq xmm3, QWORD PTR [rdi+8]
movq xmm4, QWORD PTR [rsi+rax]
movq xmm5, QWORD PTR [rdi+rdx]
punpcklbw xmm0, xmm2
punpcklbw xmm1, xmm3
psadbw xmm0, xmm1
movq xmm2, QWORD PTR [rsi+rax+8]
movq xmm3, QWORD PTR [rdi+rdx+8]
lea rsi, [rsi+rax*2]
lea rdi, [rdi+rdx*2]
punpcklbw xmm4, xmm2
punpcklbw xmm5, xmm3
psadbw xmm4, xmm5
paddw xmm6, xmm0
paddw xmm6, xmm4
cmp rsi, rcx
jne .x16x16sad_wmt_loop
movq xmm0, xmm6
psrldq xmm6, 8
paddw xmm0, xmm6
movq rax, xmm0
; begin epilog
pop rdi
pop rsi
RESTORE_XMM
UNSHADOW_ARGS
pop rbp
ret
;unsigned int vp8_sad8x16_wmt(
; unsigned char *src_ptr,
; int src_stride,
; unsigned char *ref_ptr,
; int ref_stride,
; int max_sad)
global sym(vp8_sad8x16_wmt) PRIVATE
sym(vp8_sad8x16_wmt):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 5
push rbx
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;src_ptr
mov rdi, arg(2) ;ref_ptr
movsxd rbx, dword ptr arg(1) ;src_stride
movsxd rdx, dword ptr arg(3) ;ref_stride
lea rcx, [rsi+rbx*8]
lea rcx, [rcx+rbx*8]
pxor mm7, mm7
.x8x16sad_wmt_loop:
movq rax, mm7
cmp eax, arg(4)
ja .x8x16sad_wmt_early_exit
movq mm0, QWORD PTR [rsi]
movq mm1, QWORD PTR [rdi]
movq mm2, QWORD PTR [rsi+rbx]
movq mm3, QWORD PTR [rdi+rdx]
psadbw mm0, mm1
psadbw mm2, mm3
lea rsi, [rsi+rbx*2]
lea rdi, [rdi+rdx*2]
paddw mm7, mm0
paddw mm7, mm2
cmp rsi, rcx
jne .x8x16sad_wmt_loop
movq rax, mm7
.x8x16sad_wmt_early_exit:
; begin epilog
pop rdi
pop rsi
pop rbx
UNSHADOW_ARGS
pop rbp
ret
;unsigned int vp8_sad8x8_wmt(
; unsigned char *src_ptr,
; int src_stride,
; unsigned char *ref_ptr,
; int ref_stride)
global sym(vp8_sad8x8_wmt) PRIVATE
sym(vp8_sad8x8_wmt):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 5
push rbx
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;src_ptr
mov rdi, arg(2) ;ref_ptr
movsxd rbx, dword ptr arg(1) ;src_stride
movsxd rdx, dword ptr arg(3) ;ref_stride
lea rcx, [rsi+rbx*8]
pxor mm7, mm7
.x8x8sad_wmt_loop:
movq rax, mm7
cmp eax, arg(4)
ja .x8x8sad_wmt_early_exit
movq mm0, QWORD PTR [rsi]
movq mm1, QWORD PTR [rdi]
psadbw mm0, mm1
lea rsi, [rsi+rbx]
add rdi, rdx
paddw mm7, mm0
cmp rsi, rcx
jne .x8x8sad_wmt_loop
movq rax, mm7
.x8x8sad_wmt_early_exit:
; begin epilog
pop rdi
pop rsi
pop rbx
UNSHADOW_ARGS
pop rbp
ret
;unsigned int vp8_sad4x4_wmt(
; unsigned char *src_ptr,
; int src_stride,
; unsigned char *ref_ptr,
; int ref_stride)
global sym(vp8_sad4x4_wmt) PRIVATE
sym(vp8_sad4x4_wmt):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 4
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;src_ptr
mov rdi, arg(2) ;ref_ptr
movsxd rax, dword ptr arg(1) ;src_stride
movsxd rdx, dword ptr arg(3) ;ref_stride
movd mm0, DWORD PTR [rsi]
movd mm1, DWORD PTR [rdi]
movd mm2, DWORD PTR [rsi+rax]
movd mm3, DWORD PTR [rdi+rdx]
punpcklbw mm0, mm2
punpcklbw mm1, mm3
psadbw mm0, mm1
lea rsi, [rsi+rax*2]
lea rdi, [rdi+rdx*2]
movd mm4, DWORD PTR [rsi]
movd mm5, DWORD PTR [rdi]
movd mm6, DWORD PTR [rsi+rax]
movd mm7, DWORD PTR [rdi+rdx]
punpcklbw mm4, mm6
punpcklbw mm5, mm7
psadbw mm4, mm5
paddw mm0, mm4
movq rax, mm0
; begin epilog
pop rdi
pop rsi
UNSHADOW_ARGS
pop rbp
ret
;unsigned int vp8_sad16x8_wmt(
; unsigned char *src_ptr,
; int src_stride,
; unsigned char *ref_ptr,
; int ref_stride)
global sym(vp8_sad16x8_wmt) PRIVATE
sym(vp8_sad16x8_wmt):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 5
push rbx
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;src_ptr
mov rdi, arg(2) ;ref_ptr
movsxd rbx, dword ptr arg(1) ;src_stride
movsxd rdx, dword ptr arg(3) ;ref_stride
lea rcx, [rsi+rbx*8]
pxor mm7, mm7
.x16x8sad_wmt_loop:
movq rax, mm7
cmp eax, arg(4)
ja .x16x8sad_wmt_early_exit
movq mm0, QWORD PTR [rsi]
movq mm2, QWORD PTR [rsi+8]
movq mm1, QWORD PTR [rdi]
movq mm3, QWORD PTR [rdi+8]
movq mm4, QWORD PTR [rsi+rbx]
movq mm5, QWORD PTR [rdi+rdx]
psadbw mm0, mm1
psadbw mm2, mm3
movq mm1, QWORD PTR [rsi+rbx+8]
movq mm3, QWORD PTR [rdi+rdx+8]
psadbw mm4, mm5
psadbw mm1, mm3
lea rsi, [rsi+rbx*2]
lea rdi, [rdi+rdx*2]
paddw mm0, mm2
paddw mm4, mm1
paddw mm7, mm0
paddw mm7, mm4
cmp rsi, rcx
jne .x16x8sad_wmt_loop
movq rax, mm7
.x16x8sad_wmt_early_exit:
; begin epilog
pop rdi
pop rsi
pop rbx
UNSHADOW_ARGS
pop rbp
ret
;void vp8_copy32xn_sse2(
; unsigned char *src_ptr,
; int src_stride,
; unsigned char *dst_ptr,
; int dst_stride,
; int height);
global sym(vp8_copy32xn_sse2) PRIVATE
sym(vp8_copy32xn_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 5
SAVE_XMM 7
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;src_ptr
mov rdi, arg(2) ;dst_ptr
movsxd rax, dword ptr arg(1) ;src_stride
movsxd rdx, dword ptr arg(3) ;dst_stride
movsxd rcx, dword ptr arg(4) ;height
.block_copy_sse2_loopx4:
movdqu xmm0, XMMWORD PTR [rsi]
movdqu xmm1, XMMWORD PTR [rsi + 16]
movdqu xmm2, XMMWORD PTR [rsi + rax]
movdqu xmm3, XMMWORD PTR [rsi + rax + 16]
lea rsi, [rsi+rax*2]
movdqu xmm4, XMMWORD PTR [rsi]
movdqu xmm5, XMMWORD PTR [rsi + 16]
movdqu xmm6, XMMWORD PTR [rsi + rax]
movdqu xmm7, XMMWORD PTR [rsi + rax + 16]
lea rsi, [rsi+rax*2]
movdqa XMMWORD PTR [rdi], xmm0
movdqa XMMWORD PTR [rdi + 16], xmm1
movdqa XMMWORD PTR [rdi + rdx], xmm2
movdqa XMMWORD PTR [rdi + rdx + 16], xmm3
lea rdi, [rdi+rdx*2]
movdqa XMMWORD PTR [rdi], xmm4
movdqa XMMWORD PTR [rdi + 16], xmm5
movdqa XMMWORD PTR [rdi + rdx], xmm6
movdqa XMMWORD PTR [rdi + rdx + 16], xmm7
lea rdi, [rdi+rdx*2]
sub rcx, 4
cmp rcx, 4
jge .block_copy_sse2_loopx4
cmp rcx, 0
je .copy_is_done
.block_copy_sse2_loop:
movdqu xmm0, XMMWORD PTR [rsi]
movdqu xmm1, XMMWORD PTR [rsi + 16]
lea rsi, [rsi+rax]
movdqa XMMWORD PTR [rdi], xmm0
movdqa XMMWORD PTR [rdi + 16], xmm1
lea rdi, [rdi+rdx]
sub rcx, 1
jne .block_copy_sse2_loop
.copy_is_done:
; begin epilog
pop rdi
pop rsi
RESTORE_XMM
UNSHADOW_ARGS
pop rbp
ret
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