| ; |
| ; 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" |
| |
| SECTION .text |
| |
| ;void vp8_copy32xn_sse2( |
| ; unsigned char *src_ptr, |
| ; int src_stride, |
| ; unsigned char *dst_ptr, |
| ; int dst_stride, |
| ; int height); |
| globalsym(vp8_copy32xn_sse2) |
| 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 |