ref: 6b4463dc1f7337e982db96e56afeafaaf62a1b27
dir: /vpx_dsp/x86/vpx_subpixel_8t_ssse3.asm/
; ; Copyright (c) 2015 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 "third_party/x86inc/x86inc.asm" SECTION_RODATA pw_64: times 8 dw 64 ; %define USE_PMULHRSW ; NOTE: pmulhrsw has a latency of 5 cycles. Tests showed a performance loss ; when using this instruction. ; ; The add order below (based on ffvp9) must be followed to prevent outranges. ; x = k0k1 + k4k5 ; y = k2k3 + k6k7 ; z = signed SAT(x + y) SECTION .text %if ARCH_X86_64 %define LOCAL_VARS_SIZE 16*4 %else %define LOCAL_VARS_SIZE 16*6 %endif %macro SETUP_LOCAL_VARS 0 ; TODO(slavarnway): using xmm registers for these on ARCH_X86_64 + ; pmaddubsw has a higher latency on some platforms, this might be eased by ; interleaving the instructions. %define k0k1 [rsp + 16*0] %define k2k3 [rsp + 16*1] %define k4k5 [rsp + 16*2] %define k6k7 [rsp + 16*3] packsswb m4, m4 ; TODO(slavarnway): multiple pshufb instructions had a higher latency on ; some platforms. pshuflw m0, m4, 0b ;k0_k1 pshuflw m1, m4, 01010101b ;k2_k3 pshuflw m2, m4, 10101010b ;k4_k5 pshuflw m3, m4, 11111111b ;k6_k7 punpcklqdq m0, m0 punpcklqdq m1, m1 punpcklqdq m2, m2 punpcklqdq m3, m3 mova k0k1, m0 mova k2k3, m1 mova k4k5, m2 mova k6k7, m3 %if ARCH_X86_64 %define krd m12 %define tmp m13 mova krd, [GLOBAL(pw_64)] %else %define tmp [rsp + 16*4] %define krd [rsp + 16*5] %if CONFIG_PIC=0 mova m6, [GLOBAL(pw_64)] %else ; build constants without accessing global memory pcmpeqb m6, m6 ;all ones psrlw m6, 15 psllw m6, 6 ;aka pw_64 %endif mova krd, m6 %endif %endm %macro HORIZx4_ROW 2 mova %2, %1 punpcklbw %1, %1 punpckhbw %2, %2 mova m3, %2 palignr %2, %1, 1 palignr m3, %1, 5 pmaddubsw %2, k0k1k4k5 pmaddubsw m3, k2k3k6k7 mova m4, %2 ;k0k1 mova m5, m3 ;k2k3 psrldq %2, 8 ;k4k5 psrldq m3, 8 ;k6k7 paddsw %2, m4 paddsw m5, m3 paddsw %2, m5 paddsw %2, krd psraw %2, 7 packuswb %2, %2 %endm ;------------------------------------------------------------------------------- %macro SUBPIX_HFILTER4 1 cglobal filter_block1d4_%1, 6, 6+(ARCH_X86_64*2), 11, LOCAL_VARS_SIZE, \ src, sstride, dst, dstride, height, filter mova m4, [filterq] packsswb m4, m4 %if ARCH_X86_64 %define k0k1k4k5 m8 %define k2k3k6k7 m9 %define krd m10 %define orig_height r7d mova krd, [GLOBAL(pw_64)] pshuflw k0k1k4k5, m4, 0b ;k0_k1 pshufhw k0k1k4k5, k0k1k4k5, 10101010b ;k0_k1_k4_k5 pshuflw k2k3k6k7, m4, 01010101b ;k2_k3 pshufhw k2k3k6k7, k2k3k6k7, 11111111b ;k2_k3_k6_k7 %else %define k0k1k4k5 [rsp + 16*0] %define k2k3k6k7 [rsp + 16*1] %define krd [rsp + 16*2] %define orig_height [rsp + 16*3] pshuflw m6, m4, 0b ;k0_k1 pshufhw m6, m6, 10101010b ;k0_k1_k4_k5 pshuflw m7, m4, 01010101b ;k2_k3 pshufhw m7, m7, 11111111b ;k2_k3_k6_k7 %if CONFIG_PIC=0 mova m1, [GLOBAL(pw_64)] %else ; build constants without accessing global memory pcmpeqb m1, m1 ;all ones psrlw m1, 15 psllw m1, 6 ;aka pw_64 %endif mova k0k1k4k5, m6 mova k2k3k6k7, m7 mova krd, m1 %endif mov orig_height, heightd shr heightd, 1 .loop: ;Do two rows at once movh m0, [srcq - 3] movh m1, [srcq + 5] punpcklqdq m0, m1 mova m1, m0 movh m2, [srcq + sstrideq - 3] movh m3, [srcq + sstrideq + 5] punpcklqdq m2, m3 mova m3, m2 punpcklbw m0, m0 punpckhbw m1, m1 punpcklbw m2, m2 punpckhbw m3, m3 mova m4, m1 palignr m4, m0, 1 pmaddubsw m4, k0k1k4k5 palignr m1, m0, 5 pmaddubsw m1, k2k3k6k7 mova m7, m3 palignr m7, m2, 1 pmaddubsw m7, k0k1k4k5 palignr m3, m2, 5 pmaddubsw m3, k2k3k6k7 mova m0, m4 ;k0k1 mova m5, m1 ;k2k3 mova m2, m7 ;k0k1 upper psrldq m4, 8 ;k4k5 psrldq m1, 8 ;k6k7 paddsw m4, m0 paddsw m5, m1 mova m1, m3 ;k2k3 upper psrldq m7, 8 ;k4k5 upper psrldq m3, 8 ;k6k7 upper paddsw m7, m2 paddsw m4, m5 paddsw m1, m3 paddsw m7, m1 paddsw m4, krd psraw m4, 7 packuswb m4, m4 paddsw m7, krd psraw m7, 7 packuswb m7, m7 %ifidn %1, h8_avg movd m0, [dstq] pavgb m4, m0 movd m2, [dstq + dstrideq] pavgb m7, m2 %endif movd [dstq], m4 movd [dstq + dstrideq], m7 lea srcq, [srcq + sstrideq ] prefetcht0 [srcq + 4 * sstrideq - 3] lea srcq, [srcq + sstrideq ] lea dstq, [dstq + 2 * dstrideq ] prefetcht0 [srcq + 2 * sstrideq - 3] dec heightd jnz .loop ; Do last row if output_height is odd mov heightd, orig_height and heightd, 1 je .done movh m0, [srcq - 3] ; load src movh m1, [srcq + 5] punpcklqdq m0, m1 HORIZx4_ROW m0, m1 %ifidn %1, h8_avg movd m0, [dstq] pavgb m1, m0 %endif movd [dstq], m1 .done RET %endm %macro HORIZx8_ROW 5 mova %2, %1 punpcklbw %1, %1 punpckhbw %2, %2 mova %3, %2 mova %4, %2 mova %5, %2 palignr %2, %1, 1 palignr %3, %1, 5 palignr %4, %1, 9 palignr %5, %1, 13 pmaddubsw %2, k0k1 pmaddubsw %3, k2k3 pmaddubsw %4, k4k5 pmaddubsw %5, k6k7 paddsw %2, %4 paddsw %5, %3 paddsw %2, %5 paddsw %2, krd psraw %2, 7 packuswb %2, %2 SWAP %1, %2 %endm ;------------------------------------------------------------------------------- %macro SUBPIX_HFILTER8 1 cglobal filter_block1d8_%1, 6, 6+(ARCH_X86_64*1), 14, LOCAL_VARS_SIZE, \ src, sstride, dst, dstride, height, filter mova m4, [filterq] SETUP_LOCAL_VARS %if ARCH_X86_64 %define orig_height r7d %else %define orig_height heightmp %endif mov orig_height, heightd shr heightd, 1 .loop: movh m0, [srcq - 3] movh m3, [srcq + 5] movh m4, [srcq + sstrideq - 3] movh m7, [srcq + sstrideq + 5] punpcklqdq m0, m3 mova m1, m0 punpcklbw m0, m0 punpckhbw m1, m1 mova m5, m1 palignr m5, m0, 13 pmaddubsw m5, k6k7 mova m2, m1 mova m3, m1 palignr m1, m0, 1 pmaddubsw m1, k0k1 punpcklqdq m4, m7 mova m6, m4 punpcklbw m4, m4 palignr m2, m0, 5 punpckhbw m6, m6 palignr m3, m0, 9 mova m7, m6 pmaddubsw m2, k2k3 pmaddubsw m3, k4k5 palignr m7, m4, 13 mova m0, m6 palignr m0, m4, 5 pmaddubsw m7, k6k7 paddsw m1, m3 paddsw m2, m5 paddsw m1, m2 mova m5, m6 palignr m6, m4, 1 pmaddubsw m0, k2k3 pmaddubsw m6, k0k1 palignr m5, m4, 9 paddsw m1, krd pmaddubsw m5, k4k5 psraw m1, 7 paddsw m0, m7 %ifidn %1, h8_avg movh m7, [dstq] movh m2, [dstq + dstrideq] %endif packuswb m1, m1 paddsw m6, m5 paddsw m6, m0 paddsw m6, krd psraw m6, 7 packuswb m6, m6 %ifidn %1, h8_avg pavgb m1, m7 pavgb m6, m2 %endif movh [dstq], m1 movh [dstq + dstrideq], m6 lea srcq, [srcq + sstrideq ] prefetcht0 [srcq + 4 * sstrideq - 3] lea srcq, [srcq + sstrideq ] lea dstq, [dstq + 2 * dstrideq ] prefetcht0 [srcq + 2 * sstrideq - 3] dec heightd jnz .loop ;Do last row if output_height is odd mov heightd, orig_height and heightd, 1 je .done movh m0, [srcq - 3] movh m3, [srcq + 5] punpcklqdq m0, m3 HORIZx8_ROW m0, m1, m2, m3, m4 %ifidn %1, h8_avg movh m1, [dstq] pavgb m0, m1 %endif movh [dstq], m0 .done: RET %endm ;------------------------------------------------------------------------------- %macro SUBPIX_HFILTER16 1 cglobal filter_block1d16_%1, 6, 6+(ARCH_X86_64*0), 14, LOCAL_VARS_SIZE, \ src, sstride, dst, dstride, height, filter mova m4, [filterq] SETUP_LOCAL_VARS .loop: prefetcht0 [srcq + 2 * sstrideq -3] movh m0, [srcq - 3] movh m4, [srcq + 5] movh m6, [srcq + 13] punpcklqdq m0, m4 mova m7, m0 punpckhbw m0, m0 mova m1, m0 punpcklqdq m4, m6 mova m3, m0 punpcklbw m7, m7 palignr m3, m7, 13 mova m2, m0 pmaddubsw m3, k6k7 palignr m0, m7, 1 pmaddubsw m0, k0k1 palignr m1, m7, 5 pmaddubsw m1, k2k3 palignr m2, m7, 9 pmaddubsw m2, k4k5 paddsw m1, m3 mova m3, m4 punpckhbw m4, m4 mova m5, m4 punpcklbw m3, m3 mova m7, m4 palignr m5, m3, 5 mova m6, m4 palignr m4, m3, 1 pmaddubsw m4, k0k1 pmaddubsw m5, k2k3 palignr m6, m3, 9 pmaddubsw m6, k4k5 palignr m7, m3, 13 pmaddubsw m7, k6k7 paddsw m0, m2 paddsw m0, m1 %ifidn %1, h8_avg mova m1, [dstq] %endif paddsw m4, m6 paddsw m5, m7 paddsw m4, m5 paddsw m0, krd paddsw m4, krd psraw m0, 7 psraw m4, 7 packuswb m0, m4 %ifidn %1, h8_avg pavgb m0, m1 %endif lea srcq, [srcq + sstrideq] mova [dstq], m0 lea dstq, [dstq + dstrideq] dec heightd jnz .loop RET %endm INIT_XMM ssse3 SUBPIX_HFILTER16 h8 SUBPIX_HFILTER16 h8_avg SUBPIX_HFILTER8 h8 SUBPIX_HFILTER8 h8_avg SUBPIX_HFILTER4 h8 SUBPIX_HFILTER4 h8_avg ;------------------------------------------------------------------------------- %macro SUBPIX_VFILTER 2 cglobal filter_block1d%2_%1, 6, 6+(ARCH_X86_64*3), 14, LOCAL_VARS_SIZE, \ src, sstride, dst, dstride, height, filter mova m4, [filterq] SETUP_LOCAL_VARS %if ARCH_X86_64 %define src1q r7 %define sstride6q r8 %define dst_stride dstrideq %else %define src1q filterq %define sstride6q dstrideq %define dst_stride dstridemp %endif mov src1q, srcq add src1q, sstrideq lea sstride6q, [sstrideq + sstrideq * 4] add sstride6q, sstrideq ;pitch * 6 %ifidn %2, 8 %define movx movh %else %define movx movd %endif .loop: movx m0, [srcq ] ;A movx m1, [srcq + sstrideq ] ;B punpcklbw m0, m1 ;A B movx m2, [srcq + sstrideq * 2 ] ;C pmaddubsw m0, k0k1 mova m6, m2 movx m3, [src1q + sstrideq * 2] ;D punpcklbw m2, m3 ;C D pmaddubsw m2, k2k3 movx m4, [srcq + sstrideq * 4 ] ;E mova m7, m4 movx m5, [src1q + sstrideq * 4] ;F punpcklbw m4, m5 ;E F pmaddubsw m4, k4k5 punpcklbw m1, m6 ;A B next iter movx m6, [srcq + sstride6q ] ;G punpcklbw m5, m6 ;E F next iter punpcklbw m3, m7 ;C D next iter pmaddubsw m5, k4k5 movx m7, [src1q + sstride6q ] ;H punpcklbw m6, m7 ;G H pmaddubsw m6, k6k7 pmaddubsw m3, k2k3 pmaddubsw m1, k0k1 paddsw m0, m4 paddsw m2, m6 movx m6, [srcq + sstrideq * 8 ] ;H next iter punpcklbw m7, m6 pmaddubsw m7, k6k7 paddsw m0, m2 paddsw m0, krd psraw m0, 7 paddsw m1, m5 packuswb m0, m0 paddsw m3, m7 paddsw m1, m3 paddsw m1, krd psraw m1, 7 lea srcq, [srcq + sstrideq * 2 ] lea src1q, [src1q + sstrideq * 2] packuswb m1, m1 %ifidn %1, v8_avg movx m2, [dstq] pavgb m0, m2 %endif movx [dstq], m0 add dstq, dst_stride %ifidn %1, v8_avg movx m3, [dstq] pavgb m1, m3 %endif movx [dstq], m1 add dstq, dst_stride sub heightd, 2 cmp heightd, 1 jg .loop cmp heightd, 0 je .done movx m0, [srcq ] ;A movx m1, [srcq + sstrideq ] ;B movx m6, [srcq + sstride6q ] ;G punpcklbw m0, m1 ;A B movx m7, [src1q + sstride6q ] ;H pmaddubsw m0, k0k1 movx m2, [srcq + sstrideq * 2 ] ;C punpcklbw m6, m7 ;G H movx m3, [src1q + sstrideq * 2] ;D pmaddubsw m6, k6k7 movx m4, [srcq + sstrideq * 4 ] ;E punpcklbw m2, m3 ;C D movx m5, [src1q + sstrideq * 4] ;F punpcklbw m4, m5 ;E F pmaddubsw m2, k2k3 pmaddubsw m4, k4k5 paddsw m2, m6 paddsw m0, m4 paddsw m0, m2 paddsw m0, krd psraw m0, 7 packuswb m0, m0 %ifidn %1, v8_avg movx m1, [dstq] pavgb m0, m1 %endif movx [dstq], m0 .done: RET %endm ;------------------------------------------------------------------------------- %macro SUBPIX_VFILTER16 1 cglobal filter_block1d16_%1, 6, 6+(ARCH_X86_64*3), 14, LOCAL_VARS_SIZE, \ src, sstride, dst, dstride, height, filter mova m4, [filterq] SETUP_LOCAL_VARS %if ARCH_X86_64 %define src1q r7 %define sstride6q r8 %define dst_stride dstrideq %else %define src1q filterq %define sstride6q dstrideq %define dst_stride dstridemp %endif mov src1q, srcq add src1q, sstrideq lea sstride6q, [sstrideq + sstrideq * 4] add sstride6q, sstrideq ;pitch * 6 .loop: movh m0, [srcq ] ;A movh m1, [srcq + sstrideq ] ;B movh m2, [srcq + sstrideq * 2 ] ;C movh m3, [src1q + sstrideq * 2] ;D movh m4, [srcq + sstrideq * 4 ] ;E movh m5, [src1q + sstrideq * 4] ;F punpcklbw m0, m1 ;A B movh m6, [srcq + sstride6q] ;G punpcklbw m2, m3 ;C D movh m7, [src1q + sstride6q] ;H punpcklbw m4, m5 ;E F pmaddubsw m0, k0k1 movh m3, [srcq + 8] ;A pmaddubsw m2, k2k3 punpcklbw m6, m7 ;G H movh m5, [srcq + sstrideq + 8] ;B pmaddubsw m4, k4k5 punpcklbw m3, m5 ;A B movh m7, [srcq + sstrideq * 2 + 8] ;C pmaddubsw m6, k6k7 movh m5, [src1q + sstrideq * 2 + 8] ;D punpcklbw m7, m5 ;C D paddsw m2, m6 pmaddubsw m3, k0k1 movh m1, [srcq + sstrideq * 4 + 8] ;E paddsw m0, m4 pmaddubsw m7, k2k3 movh m6, [src1q + sstrideq * 4 + 8] ;F punpcklbw m1, m6 ;E F paddsw m0, m2 paddsw m0, krd movh m2, [srcq + sstride6q + 8] ;G pmaddubsw m1, k4k5 movh m5, [src1q + sstride6q + 8] ;H psraw m0, 7 punpcklbw m2, m5 ;G H pmaddubsw m2, k6k7 %ifidn %1, v8_avg mova m4, [dstq] %endif movh [dstq], m0 paddsw m7, m2 paddsw m3, m1 paddsw m3, m7 paddsw m3, krd psraw m3, 7 packuswb m0, m3 add srcq, sstrideq add src1q, sstrideq %ifidn %1, v8_avg pavgb m0, m4 %endif mova [dstq], m0 add dstq, dst_stride dec heightd jnz .loop RET %endm INIT_XMM ssse3 SUBPIX_VFILTER16 v8 SUBPIX_VFILTER16 v8_avg SUBPIX_VFILTER v8, 8 SUBPIX_VFILTER v8_avg, 8 SUBPIX_VFILTER v8, 4 SUBPIX_VFILTER v8_avg, 4