| ; |
| ; 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_short_walsh4x4_sse2(short *input, short *output, int pitch) |
| global sym(vp8_short_walsh4x4_sse2) PRIVATE |
| sym(vp8_short_walsh4x4_sse2): |
| push rbp |
| mov rbp, rsp |
| SHADOW_ARGS_TO_STACK 3 |
| SAVE_XMM 7 |
| GET_GOT rbx |
| push rsi |
| push rdi |
| ; end prolog |
| |
| mov rsi, arg(0) ; input |
| mov rdi, arg(1) ; output |
| movsxd rdx, dword ptr arg(2) ; pitch |
| |
| ; first for loop |
| movq xmm0, MMWORD PTR [rsi] ; load input |
| movq xmm1, MMWORD PTR [rsi + rdx] |
| lea rsi, [rsi + rdx*2] |
| movq xmm2, MMWORD PTR [rsi] |
| movq xmm3, MMWORD PTR [rsi + rdx] |
| |
| punpcklwd xmm0, xmm1 |
| punpcklwd xmm2, xmm3 |
| |
| movdqa xmm1, xmm0 |
| punpckldq xmm0, xmm2 ; ip[1] ip[0] |
| punpckhdq xmm1, xmm2 ; ip[3] ip[2] |
| |
| movdqa xmm2, xmm0 |
| paddw xmm0, xmm1 |
| psubw xmm2, xmm1 |
| |
| psllw xmm0, 2 ; d1 a1 |
| psllw xmm2, 2 ; c1 b1 |
| |
| movdqa xmm1, xmm0 |
| punpcklqdq xmm0, xmm2 ; b1 a1 |
| punpckhqdq xmm1, xmm2 ; c1 d1 |
| |
| pxor xmm6, xmm6 |
| movq xmm6, xmm0 |
| pxor xmm7, xmm7 |
| pcmpeqw xmm7, xmm6 |
| paddw xmm7, [GLOBAL(c1)] |
| |
| movdqa xmm2, xmm0 |
| paddw xmm0, xmm1 ; b1+c1 a1+d1 |
| psubw xmm2, xmm1 ; b1-c1 a1-d1 |
| paddw xmm0, xmm7 ; b1+c1 a1+d1+(a1!=0) |
| |
| ; second for loop |
| ; input: 13 9 5 1 12 8 4 0 (xmm0) |
| ; 14 10 6 2 15 11 7 3 (xmm2) |
| ; after shuffle: |
| ; 13 5 9 1 12 4 8 0 (xmm0) |
| ; 14 6 10 2 15 7 11 3 (xmm1) |
| pshuflw xmm3, xmm0, 0xd8 |
| pshufhw xmm0, xmm3, 0xd8 |
| pshuflw xmm3, xmm2, 0xd8 |
| pshufhw xmm1, xmm3, 0xd8 |
| |
| movdqa xmm2, xmm0 |
| pmaddwd xmm0, [GLOBAL(c1)] ; d11 a11 d10 a10 |
| pmaddwd xmm2, [GLOBAL(cn1)] ; c11 b11 c10 b10 |
| movdqa xmm3, xmm1 |
| pmaddwd xmm1, [GLOBAL(c1)] ; d12 a12 d13 a13 |
| pmaddwd xmm3, [GLOBAL(cn1)] ; c12 b12 c13 b13 |
| |
| pshufd xmm4, xmm0, 0xd8 ; d11 d10 a11 a10 |
| pshufd xmm5, xmm2, 0xd8 ; c11 c10 b11 b10 |
| pshufd xmm6, xmm1, 0x72 ; d13 d12 a13 a12 |
| pshufd xmm7, xmm3, 0x72 ; c13 c12 b13 b12 |
| |
| movdqa xmm0, xmm4 |
| punpcklqdq xmm0, xmm5 ; b11 b10 a11 a10 |
| punpckhqdq xmm4, xmm5 ; c11 c10 d11 d10 |
| movdqa xmm1, xmm6 |
| punpcklqdq xmm1, xmm7 ; b13 b12 a13 a12 |
| punpckhqdq xmm6, xmm7 ; c13 c12 d13 d12 |
| |
| movdqa xmm2, xmm0 |
| paddd xmm0, xmm4 ; b21 b20 a21 a20 |
| psubd xmm2, xmm4 ; c21 c20 d21 d20 |
| movdqa xmm3, xmm1 |
| paddd xmm1, xmm6 ; b23 b22 a23 a22 |
| psubd xmm3, xmm6 ; c23 c22 d23 d22 |
| |
| pxor xmm4, xmm4 |
| movdqa xmm5, xmm4 |
| pcmpgtd xmm4, xmm0 |
| pcmpgtd xmm5, xmm2 |
| pand xmm4, [GLOBAL(cd1)] |
| pand xmm5, [GLOBAL(cd1)] |
| |
| pxor xmm6, xmm6 |
| movdqa xmm7, xmm6 |
| pcmpgtd xmm6, xmm1 |
| pcmpgtd xmm7, xmm3 |
| pand xmm6, [GLOBAL(cd1)] |
| pand xmm7, [GLOBAL(cd1)] |
| |
| paddd xmm0, xmm4 |
| paddd xmm2, xmm5 |
| paddd xmm0, [GLOBAL(cd3)] |
| paddd xmm2, [GLOBAL(cd3)] |
| paddd xmm1, xmm6 |
| paddd xmm3, xmm7 |
| paddd xmm1, [GLOBAL(cd3)] |
| paddd xmm3, [GLOBAL(cd3)] |
| |
| psrad xmm0, 3 |
| psrad xmm1, 3 |
| psrad xmm2, 3 |
| psrad xmm3, 3 |
| movdqa xmm4, xmm0 |
| punpcklqdq xmm0, xmm1 ; a23 a22 a21 a20 |
| punpckhqdq xmm4, xmm1 ; b23 b22 b21 b20 |
| movdqa xmm5, xmm2 |
| punpckhqdq xmm2, xmm3 ; c23 c22 c21 c20 |
| punpcklqdq xmm5, xmm3 ; d23 d22 d21 d20 |
| |
| packssdw xmm0, xmm4 ; b23 b22 b21 b20 a23 a22 a21 a20 |
| packssdw xmm2, xmm5 ; d23 d22 d21 d20 c23 c22 c21 c20 |
| |
| movdqa XMMWORD PTR [rdi], xmm0 |
| movdqa XMMWORD PTR [rdi + 16], xmm2 |
| |
| ; begin epilog |
| pop rdi |
| pop rsi |
| RESTORE_GOT |
| RESTORE_XMM |
| UNSHADOW_ARGS |
| pop rbp |
| ret |
| |
| SECTION_RODATA |
| align 16 |
| c1: |
| dw 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001 |
| align 16 |
| cn1: |
| dw 0x0001, 0xffff, 0x0001, 0xffff, 0x0001, 0xffff, 0x0001, 0xffff |
| align 16 |
| cd1: |
| dd 0x00000001, 0x00000001, 0x00000001, 0x00000001 |
| align 16 |
| cd3: |
| dd 0x00000003, 0x00000003, 0x00000003, 0x00000003 |
