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Commit 92ea0c5c authored by Loren Merritt's avatar Loren Merritt
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port recent MC asm changes to amd64. 

patch by Josef Zlomek.


git-svn-id: svn://svn.videolan.org/x264/trunk@225 df754926-b1dd-0310-bc7b-ec298dee348c
parent d926e41d
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common/amd64/mc-a2.asm
View file @ 92ea0c5c
......@@ -49,11 +49,7 @@ mmx_dw_20:
mmx_dw_5:
times 4 dw -5
SECTION .data
buffer:
dq 0
%assign tbuffer 0
;=============================================================================
; Macros
......@@ -133,117 +129,95 @@ ALIGN 16
x264_center_filter_mmxext :
push rbp
mov rbp, rsp
push rbx
push r12
push r13
push r14
push r15
mov rbp, rsp
mov r12, r8 ; src
movsxd r13, r9d ; src_stride
mov r12, r8 ; src
sub r12, r13
sub r12, r13 ; tsrc = src - 2 * src_stride
; use 24 instead of 18 (used in i386/mc-a2.asm) to keep rsp aligned
lea rax, [r13 + r13 + 24 + tbuffer]
sub rsp, rax
mov r10, rdx ; dst2
movsxd r11, ecx ; dst2_stride
mov r8, rdi ; dst1
movsxd r9, esi ; dst1_stride
movsxd r14, dword [rbp + 16] ; width
movsxd r15, dword [rbp + 24] ; height
movsxd r14, dword [rbp + 56] ; width
movsxd r15, dword [rbp + 64] ; height
mov rsi, r12 ; src
mov rcx, r13 ; src_stride
sub rsp, rcx
sub rsp, rcx ; rsp is now at the beginning of the buffer
mov [buffer], rsp ; buffer
;sub rsi, 2
sub rsi, rcx
sub rsi, rcx ; rsi - 2 - 2 * stride
mov r12, rsi
;sub rdi, 2
lea rbx, [rcx+rcx*2] ; 3 * src_stride
lea rdx, [rcx+rcx*4] ; 5 * src_stride
mov rcx, r13 ; src_stride
lea rbx, [r13 + r13 * 2] ; 3 * src_stride
lea rdx, [r13 + r13 * 4] ; 5 * src_stride
pxor mm0, mm0 ; 0 ---> mm0
movq mm7, [mmx_dd_one] ; for rounding
mov rbp, r15
loopcy:
dec rbp
mov rax, r14
mov rdi, r8
mov rsp, [buffer]
mov rsi, r12
xor rax, rax
mov rsi, r12 ; tsrc
FILT_ALL rsi
pshufw mm2, mm1, 0
movq [rsp], mm2
movq [rsp+8],mm1
movq [rsp + tbuffer], mm2
movq [rsp + tbuffer + 8], mm1
paddw mm1, [mmx_dw_one]
psraw mm1, 5
add rsp, 16
packuswb mm1, mm1
movd [rdi], mm1
movd [r8], mm1 ; dst1[0] = mm1
sub rax, 8
add rdi, 4
add rax, 8
add rsi, 4
lea rdi, [r8 - 4] ; rdi = dst1 - 4
loopcx1:
sub rax, 4
FILT_ALL rsi
movq [rsp], mm1
movq [rsp + tbuffer + 2 * rax], mm1
paddw mm1, [mmx_dw_one]
psraw mm1, 5
packuswb mm1, mm1
movd [rdi], mm1
movd [rdi + rax], mm1 ; dst1[rax - 4] = mm1
add rsp, 8
add rsi, 4
add rdi, 4
test rax, rax
add rax, 4
cmp rax, r14 ; cmp rax, width
jnz loopcx1
FILT_ALL rsi
pshufw mm2, mm1, 7
movq [rsp], mm1
movq [rsp+8], mm2
movq [rsp + tbuffer + 2 * rax], mm1
movq [rsp + tbuffer + 2 * rax + 8], mm2
paddw mm1, [mmx_dw_one]
psraw mm1, 5
packuswb mm1, mm1
movd [rdi], mm1
add rsp, 8
movd [rdi + rax], mm1 ; dst1[rax - 4] = mm1
add r12, rcx
add r12, r13 ; tsrc = tsrc + src_stride
add r8, r9
add r8, r9 ; dst1 = dst1 + dst1_stride
mov rax, r14
mov rdi, r10
mov rsp, [buffer]
add rsp, 4
xor rax, rax
loopcx2:
sub rax, 4
movq mm2, [rsp + 2 * rax + 2]
movq mm3, [rsp + 2 * rax + 4]
movq mm4, [rsp + 2 * rax + 6]
movq mm5, [rsp + 2 * rax + 8]
movq mm1, [rsp + 2 * rax]
movq mm6, [rsp + 2 * rax + 10]
movq mm2, [rsp + 2 * rax + 2 + 4 + tbuffer]
movq mm3, [rsp + 2 * rax + 4 + 4 + tbuffer]
movq mm4, [rsp + 2 * rax + 6 + 4 + tbuffer]
movq mm5, [rsp + 2 * rax + 8 + 4 + tbuffer]
movq mm1, [rsp + 2 * rax + 4 + tbuffer]
movq mm6, [rsp + 2 * rax + 10 + 4 + tbuffer]
paddw mm2, mm5
paddw mm3, mm4
paddw mm1, mm6
......@@ -278,20 +252,19 @@ loopcx2:
packssdw mm2, mm3
packuswb mm2, mm0
movd [rdi + rax], mm2
movd [r10 + rax], mm2 ; dst2[rax] = mm2
test rax, rax
add rax, 4
cmp rax, r14 ; cmp rax, width
jnz loopcx2
add rdi, r11
mov r10, rdi
add r10, r11 ; dst2 += dst2_stride
test rbp, rbp
dec r15 ; height
test r15, r15
jnz loopcy
mov rsp, [buffer]
shl rcx, 1
add rsp, rcx
mov rsp, rbp
pop r15
pop r14
......@@ -314,6 +287,7 @@ ALIGN 16
x264_horizontal_filter_mmxext :
movsxd r10, esi ; dst_stride
movsxd r11, ecx ; src_stride
movsxd r8, r8d ; width
; mov rdi, rdi ; dst
mov rsi, rdx ; src
......@@ -328,11 +302,11 @@ x264_horizontal_filter_mmxext :
loophy:
dec rcx
movsxd rax, r8d ; width
xor rax, rax
loophx:
sub rax, 8
prefetchnta [rsi + rax + 48]
LOAD_4 mm1, mm2, mm3, mm4, [rsi + rax], [rsi + rax + 1], [rsi + rax + 2], [rsi + rax + 3], mm0
FILT_2 mm1, mm2
......@@ -359,7 +333,8 @@ loophx:
packuswb mm1, mm2
movq [rdi + rax], mm1
test rax, rax
add rax, 8
cmp rax, r8 ; cmp rax, width
jnz loophx
add rsi, r11 ; src_pitch
......
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