; ; 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