| ; |
| ; 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" |
| |
| ;void vp8_subtract_b_sse2_impl(unsigned char *z, int src_stride, |
| ; short *diff, unsigned char *Predictor, |
| ; int pitch); |
| global sym(vp8_subtract_b_sse2_impl) |
| sym(vp8_subtract_b_sse2_impl): |
| push rbp |
| mov rbp, rsp |
| SHADOW_ARGS_TO_STACK 5 |
| GET_GOT rbx |
| push rsi |
| push rdi |
| ; end prolog |
| |
| mov rdi, arg(2) ;diff |
| mov rax, arg(3) ;Predictor |
| mov rsi, arg(0) ;z |
| movsxd rdx, dword ptr arg(1);src_stride; |
| movsxd rcx, dword ptr arg(4);pitch |
| pxor mm7, mm7 |
| |
| movd mm0, [rsi] |
| movd mm1, [rax] |
| punpcklbw mm0, mm7 |
| punpcklbw mm1, mm7 |
| psubw mm0, mm1 |
| movq MMWORD PTR [rdi], mm0 |
| |
| movd mm0, [rsi+rdx] |
| movd mm1, [rax+rcx] |
| punpcklbw mm0, mm7 |
| punpcklbw mm1, mm7 |
| psubw mm0, mm1 |
| movq MMWORD PTR [rdi+rcx*2], mm0 |
| |
| movd mm0, [rsi+rdx*2] |
| movd mm1, [rax+rcx*2] |
| punpcklbw mm0, mm7 |
| punpcklbw mm1, mm7 |
| psubw mm0, mm1 |
| movq MMWORD PTR [rdi+rcx*4], mm0 |
| |
| lea rsi, [rsi+rdx*2] |
| lea rcx, [rcx+rcx*2] |
| |
| movd mm0, [rsi+rdx] |
| movd mm1, [rax+rcx] |
| punpcklbw mm0, mm7 |
| punpcklbw mm1, mm7 |
| psubw mm0, mm1 |
| movq MMWORD PTR [rdi+rcx*2], mm0 |
| |
| ; begin epilog |
| pop rdi |
| pop rsi |
| RESTORE_GOT |
| UNSHADOW_ARGS |
| pop rbp |
| ret |
| |
| |
| ;void vp8_subtract_mby_sse2(short *diff, unsigned char *src, int src_stride, |
| ;unsigned char *pred, int pred_stride) |
| global sym(vp8_subtract_mby_sse2) |
| sym(vp8_subtract_mby_sse2): |
| push rbp |
| mov rbp, rsp |
| SHADOW_ARGS_TO_STACK 5 |
| GET_GOT rbx |
| push rsi |
| push rdi |
| ; end prolog |
| |
| mov rdi, arg(0) ;diff |
| mov rsi, arg(1) ;src |
| movsxd rdx, dword ptr arg(2);src_stride |
| mov rax, arg(3) ;pred |
| movdqa xmm4, [GLOBAL(t80)] |
| push rbx |
| mov rcx, 8 ; do two lines at one time |
| movsxd rbx, dword ptr arg(4);pred_stride |
| |
| .submby_loop: |
| movdqa xmm0, [rsi] ; src |
| movdqa xmm1, [rax] ; pred |
| |
| movdqa xmm2, xmm0 |
| psubb xmm0, xmm1 |
| |
| pxor xmm1, xmm4 ;convert to signed values |
| pxor xmm2, xmm4 |
| pcmpgtb xmm1, xmm2 ; obtain sign information |
| |
| movdqa xmm2, xmm0 |
| punpcklbw xmm0, xmm1 ; put sign back to subtraction |
| punpckhbw xmm2, xmm1 ; put sign back to subtraction |
| |
| movdqa xmm3, [rsi + rdx] |
| movdqa xmm5, [rax + rbx] |
| |
| lea rsi, [rsi+rdx*2] |
| lea rax, [rax+rbx*2] |
| |
| movdqa [rdi], xmm0 |
| movdqa [rdi +16], xmm2 |
| |
| movdqa xmm1, xmm3 |
| psubb xmm3, xmm5 |
| |
| pxor xmm5, xmm4 ;convert to signed values |
| pxor xmm1, xmm4 |
| pcmpgtb xmm5, xmm1 ; obtain sign information |
| |
| movdqa xmm1, xmm3 |
| punpcklbw xmm3, xmm5 ; put sign back to subtraction |
| punpckhbw xmm1, xmm5 ; put sign back to subtraction |
| |
| movdqa [rdi +32], xmm3 |
| movdqa [rdi +48], xmm1 |
| |
| add rdi, 64 |
| dec rcx |
| jnz .submby_loop |
| |
| pop rbx |
| pop rdi |
| pop rsi |
| ; begin epilog |
| RESTORE_GOT |
| UNSHADOW_ARGS |
| pop rbp |
| ret |
| |
| ;vp8_subtract_mbuv_sse2(short *diff, unsigned char *usrc, unsigned char *vsrc, |
| ; int src_stride, unsigned char *upred, |
| ; unsigned char *vpred, int pred_stride) |
| global sym(vp8_subtract_mbuv_sse2) |
| sym(vp8_subtract_mbuv_sse2): |
| push rbp |
| mov rbp, rsp |
| SHADOW_ARGS_TO_STACK 7 |
| GET_GOT rbx |
| push rsi |
| push rdi |
| ; end prolog |
| |
| movdqa xmm4, [GLOBAL(t80)] |
| mov rdi, arg(0) ;diff |
| mov rsi, arg(1) ;usrc |
| movsxd rdx, dword ptr arg(3);src_stride; |
| mov rax, arg(4) ;upred |
| add rdi, 256*2 ;diff = diff + 256 (shorts) |
| mov rcx, 4 |
| push rbx |
| movsxd rbx, dword ptr arg(6);pred_stride |
| |
| ;u |
| .submbu_loop: |
| movq xmm0, [rsi] ; src |
| movq xmm2, [rsi+rdx] ; src -- next line |
| movq xmm1, [rax] ; pred |
| movq xmm3, [rax+rbx] ; pred -- next line |
| lea rsi, [rsi + rdx*2] |
| lea rax, [rax + rbx*2] |
| |
| punpcklqdq xmm0, xmm2 |
| punpcklqdq xmm1, xmm3 |
| |
| movdqa xmm2, xmm0 |
| psubb xmm0, xmm1 ; subtraction with sign missed |
| |
| pxor xmm1, xmm4 ;convert to signed values |
| pxor xmm2, xmm4 |
| pcmpgtb xmm1, xmm2 ; obtain sign information |
| |
| movdqa xmm2, xmm0 |
| movdqa xmm3, xmm1 |
| punpcklbw xmm0, xmm1 ; put sign back to subtraction |
| punpckhbw xmm2, xmm3 ; put sign back to subtraction |
| |
| movdqa [rdi], xmm0 ; store difference |
| movdqa [rdi +16], xmm2 ; store difference |
| add rdi, 32 |
| sub rcx, 1 |
| jnz .submbu_loop |
| |
| mov rsi, arg(2) ;vsrc |
| mov rax, arg(5) ;vpred |
| mov rcx, 4 |
| |
| ;v |
| .submbv_loop: |
| movq xmm0, [rsi] ; src |
| movq xmm2, [rsi+rdx] ; src -- next line |
| movq xmm1, [rax] ; pred |
| movq xmm3, [rax+rbx] ; pred -- next line |
| lea rsi, [rsi + rdx*2] |
| lea rax, [rax + rbx*2] |
| |
| punpcklqdq xmm0, xmm2 |
| punpcklqdq xmm1, xmm3 |
| |
| movdqa xmm2, xmm0 |
| psubb xmm0, xmm1 ; subtraction with sign missed |
| |
| pxor xmm1, xmm4 ;convert to signed values |
| pxor xmm2, xmm4 |
| pcmpgtb xmm1, xmm2 ; obtain sign information |
| |
| movdqa xmm2, xmm0 |
| movdqa xmm3, xmm1 |
| punpcklbw xmm0, xmm1 ; put sign back to subtraction |
| punpckhbw xmm2, xmm3 ; put sign back to subtraction |
| |
| movdqa [rdi], xmm0 ; store difference |
| movdqa [rdi +16], xmm2 ; store difference |
| add rdi, 32 |
| sub rcx, 1 |
| jnz .submbv_loop |
| |
| pop rbx |
| ; begin epilog |
| pop rdi |
| pop rsi |
| RESTORE_GOT |
| UNSHADOW_ARGS |
| pop rbp |
| ret |
| |
| SECTION_RODATA |
| align 16 |
| t80: |
| times 16 db 0x80 |
