ref: 4ba3098ecb471be486b665c7f8716645ba8e22c6
dir: /vp8/encoder/x86/copy_sse3.asm/
;
; 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"
%macro STACK_FRAME_CREATE_X3 0
%if ABI_IS_32BIT
%define src_ptr rsi
%define src_stride rax
%define ref_ptr rdi
%define ref_stride rdx
%define end_ptr rcx
%define ret_var rbx
%define result_ptr arg(4)
%define max_sad arg(4)
%define height dword ptr arg(4)
push rbp
mov rbp, rsp
push rsi
push rdi
push rbx
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
%else
%if LIBVPX_YASM_WIN64
SAVE_XMM 7, u
%define src_ptr rcx
%define src_stride rdx
%define ref_ptr r8
%define ref_stride r9
%define end_ptr r10
%define ret_var r11
%define result_ptr [rsp+xmm_stack_space+8+4*8]
%define max_sad [rsp+xmm_stack_space+8+4*8]
%define height dword ptr [rsp+xmm_stack_space+8+4*8]
%else
%define src_ptr rdi
%define src_stride rsi
%define ref_ptr rdx
%define ref_stride rcx
%define end_ptr r9
%define ret_var r10
%define result_ptr r8
%define max_sad r8
%define height r8
%endif
%endif
%endmacro
%macro STACK_FRAME_DESTROY_X3 0
%define src_ptr
%define src_stride
%define ref_ptr
%define ref_stride
%define end_ptr
%define ret_var
%define result_ptr
%define max_sad
%define height
%if ABI_IS_32BIT
pop rbx
pop rdi
pop rsi
pop rbp
%else
%if LIBVPX_YASM_WIN64
RESTORE_XMM
%endif
%endif
ret
%endmacro
SECTION .text
;void vp8_copy32xn_sse3(
; unsigned char *src_ptr,
; int src_stride,
; unsigned char *dst_ptr,
; int dst_stride,
; int height);
global sym(vp8_copy32xn_sse3) PRIVATE
sym(vp8_copy32xn_sse3):
STACK_FRAME_CREATE_X3
.block_copy_sse3_loopx4:
lea end_ptr, [src_ptr+src_stride*2]
movdqu xmm0, XMMWORD PTR [src_ptr]
movdqu xmm1, XMMWORD PTR [src_ptr + 16]
movdqu xmm2, XMMWORD PTR [src_ptr + src_stride]
movdqu xmm3, XMMWORD PTR [src_ptr + src_stride + 16]
movdqu xmm4, XMMWORD PTR [end_ptr]
movdqu xmm5, XMMWORD PTR [end_ptr + 16]
movdqu xmm6, XMMWORD PTR [end_ptr + src_stride]
movdqu xmm7, XMMWORD PTR [end_ptr + src_stride + 16]
lea src_ptr, [src_ptr+src_stride*4]
lea end_ptr, [ref_ptr+ref_stride*2]
movdqa XMMWORD PTR [ref_ptr], xmm0
movdqa XMMWORD PTR [ref_ptr + 16], xmm1
movdqa XMMWORD PTR [ref_ptr + ref_stride], xmm2
movdqa XMMWORD PTR [ref_ptr + ref_stride + 16], xmm3
movdqa XMMWORD PTR [end_ptr], xmm4
movdqa XMMWORD PTR [end_ptr + 16], xmm5
movdqa XMMWORD PTR [end_ptr + ref_stride], xmm6
movdqa XMMWORD PTR [end_ptr + ref_stride + 16], xmm7
lea ref_ptr, [ref_ptr+ref_stride*4]
sub height, 4
cmp height, 4
jge .block_copy_sse3_loopx4
;Check to see if there is more rows need to be copied.
cmp height, 0
je .copy_is_done
.block_copy_sse3_loop:
movdqu xmm0, XMMWORD PTR [src_ptr]
movdqu xmm1, XMMWORD PTR [src_ptr + 16]
lea src_ptr, [src_ptr+src_stride]
movdqa XMMWORD PTR [ref_ptr], xmm0
movdqa XMMWORD PTR [ref_ptr + 16], xmm1
lea ref_ptr, [ref_ptr+ref_stride]
sub height, 1
jne .block_copy_sse3_loop
.copy_is_done:
STACK_FRAME_DESTROY_X3