;****************************************************************************** ;* VC1 DSP optimizations ;* Copyright (c) 2007 Christophe GISQUET ;* Copyright (c) 2009 David Conrad ;* ;* This file is part of FFmpeg. ;* ;* FFmpeg is free software; you can redistribute it and/or ;* modify it under the terms of the GNU Lesser General Public ;* License as published by the Free Software Foundation; either ;* version 2.1 of the License, or (at your option) any later version. ;* ;* FFmpeg is distributed in the hope that it will be useful, ;* but WITHOUT ANY WARRANTY; without even the implied warranty of ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;* Lesser General Public License for more details. ;* ;* You should have received a copy of the GNU Lesser General Public ;* License along with FFmpeg; if not, write to the Free Software ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ;****************************************************************************** %include "libavutil/x86/x86util.asm" cextern pw_4 cextern pw_5 cextern pw_9 section .text ; dst_low, dst_high (src), zero ; zero-extends one vector from 8 to 16 bits %macro UNPACK_8TO16 4 mova m%2, m%3 punpckh%1 m%3, m%4 punpckl%1 m%2, m%4 %endmacro %macro STORE_4_WORDS 6 %if cpuflag(sse4) pextrw %1, %5, %6+0 pextrw %2, %5, %6+1 pextrw %3, %5, %6+2 pextrw %4, %5, %6+3 %else movd %6d, %5 %if mmsize==16 psrldq %5, 4 %else psrlq %5, 32 %endif mov %1, %6w shr %6, 16 mov %2, %6w movd %6d, %5 mov %3, %6w shr %6, 16 mov %4, %6w %endif %endmacro ; in: p1 p0 q0 q1, clobbers p0 ; out: p1 = (2*(p1 - q1) - 5*(p0 - q0) + 4) >> 3 %macro VC1_LOOP_FILTER_A0 4 psubw %1, %4 psubw %2, %3 paddw %1, %1 pmullw %2, [pw_5] psubw %1, %2 paddw %1, [pw_4] psraw %1, 3 %endmacro ; in: p0 q0 a0 a1 a2 ; m0 m1 m7 m6 m5 ; %1: size ; out: m0=p0' m1=q0' %macro VC1_FILTER 1 PABSW m4, m7 PABSW m3, m6 PABSW m2, m5 mova m6, m4 pminsw m3, m2 pcmpgtw m6, m3 ; if (a2 < a0 || a1 < a0) psubw m3, m4 pmullw m3, [pw_5] ; 5*(a3 - a0) PABSW m2, m3 psraw m2, 3 ; abs(d/8) pxor m7, m3 ; d_sign ^= a0_sign pxor m5, m5 movd m3, r2d %if %1 > 4 punpcklbw m3, m3 %endif punpcklbw m3, m5 pcmpgtw m3, m4 ; if (a0 < pq) pand m6, m3 mova m3, m0 psubw m3, m1 PABSW m4, m3 psraw m4, 1 pxor m3, m7 ; d_sign ^ clip_sign psraw m3, 15 pminsw m2, m4 ; min(d, clip) pcmpgtw m4, m5 pand m6, m4 ; filt3 (C return value) ; each set of 4 pixels is not filtered if the 3rd is not %if mmsize==16 pshuflw m4, m6, 0xaa %if %1 > 4 pshufhw m4, m4, 0xaa %endif %else pshufw m4, m6, 0xaa %endif pandn m3, m4 pand m2, m6 pand m3, m2 ; d final psraw m7, 15 pxor m3, m7 psubw m3, m7 psubw m0, m3 paddw m1, m3 packuswb m0, m0 packuswb m1, m1 %endmacro ; 1st param: size of filter ; 2nd param: mov suffix equivalent to the filter size %macro VC1_V_LOOP_FILTER 2 pxor m5, m5 mov%2 m6, [r4] mov%2 m4, [r4+r1] mov%2 m7, [r4+2*r1] mov%2 m0, [r4+r3] punpcklbw m6, m5 punpcklbw m4, m5 punpcklbw m7, m5 punpcklbw m0, m5 VC1_LOOP_FILTER_A0 m6, m4, m7, m0 mov%2 m1, [r0] mov%2 m2, [r0+r1] punpcklbw m1, m5 punpcklbw m2, m5 mova m4, m0 VC1_LOOP_FILTER_A0 m7, m4, m1, m2 mov%2 m3, [r0+2*r1] mov%2 m4, [r0+r3] punpcklbw m3, m5 punpcklbw m4, m5 mova m5, m1 VC1_LOOP_FILTER_A0 m5, m2, m3, m4 VC1_FILTER %1 mov%2 [r4+r3], m0 mov%2 [r0], m1 %endmacro ; 1st param: size of filter ; NOTE: UNPACK_8TO16 this number of 8 bit numbers are in half a register ; 2nd (optional) param: temp register to use for storing words %macro VC1_H_LOOP_FILTER 1-2 %if %1 == 4 movq m0, [r0 -4] movq m1, [r0+ r1-4] movq m2, [r0+2*r1-4] movq m3, [r0+ r3-4] TRANSPOSE4x4B 0, 1, 2, 3, 4 %else movq m0, [r0 -4] movq m4, [r0+ r1-4] movq m1, [r0+2*r1-4] movq m5, [r0+ r3-4] movq m2, [r4 -4] movq m6, [r4+ r1-4] movq m3, [r4+2*r1-4] movq m7, [r4+ r3-4] punpcklbw m0, m4 punpcklbw m1, m5 punpcklbw m2, m6 punpcklbw m3, m7 TRANSPOSE4x4W 0, 1, 2, 3, 4 %endif pxor m5, m5 UNPACK_8TO16 bw, 6, 0, 5 UNPACK_8TO16 bw, 7, 1, 5 VC1_LOOP_FILTER_A0 m6, m0, m7, m1 UNPACK_8TO16 bw, 4, 2, 5 mova m0, m1 ; m0 = p0 VC1_LOOP_FILTER_A0 m7, m1, m4, m2 UNPACK_8TO16 bw, 1, 3, 5 mova m5, m4 VC1_LOOP_FILTER_A0 m5, m2, m1, m3 SWAP 1, 4 ; m1 = q0 VC1_FILTER %1 punpcklbw m0, m1 %if %0 > 1 STORE_4_WORDS [r0-1], [r0+r1-1], [r0+2*r1-1], [r0+r3-1], m0, %2 %if %1 > 4 psrldq m0, 4 STORE_4_WORDS [r4-1], [r4+r1-1], [r4+2*r1-1], [r4+r3-1], m0, %2 %endif %else STORE_4_WORDS [r0-1], [r0+r1-1], [r0+2*r1-1], [r0+r3-1], m0, 0 STORE_4_WORDS [r4-1], [r4+r1-1], [r4+2*r1-1], [r4+r3-1], m0, 4 %endif %endmacro %macro START_V_FILTER 0 mov r4, r0 lea r3, [4*r1] sub r4, r3 lea r3, [r1+2*r1] imul r2, 0x01010101 %endmacro %macro START_H_FILTER 1 lea r3, [r1+2*r1] %if %1 > 4 lea r4, [r0+4*r1] %endif imul r2, 0x01010101 %endmacro %macro VC1_LF 0 cglobal vc1_v_loop_filter_internal VC1_V_LOOP_FILTER 4, d ret cglobal vc1_h_loop_filter_internal VC1_H_LOOP_FILTER 4, r4 ret ; void ff_vc1_v_loop_filter4_mmxext(uint8_t *src, int stride, int pq) cglobal vc1_v_loop_filter4, 3,5,0 START_V_FILTER call vc1_v_loop_filter_internal RET ; void ff_vc1_h_loop_filter4_mmxext(uint8_t *src, int stride, int pq) cglobal vc1_h_loop_filter4, 3,5,0 START_H_FILTER 4 call vc1_h_loop_filter_internal RET ; void ff_vc1_v_loop_filter8_mmxext(uint8_t *src, int stride, int pq) cglobal vc1_v_loop_filter8, 3,5,0 START_V_FILTER call vc1_v_loop_filter_internal add r4, 4 add r0, 4 call vc1_v_loop_filter_internal RET ; void ff_vc1_h_loop_filter8_mmxext(uint8_t *src, int stride, int pq) cglobal vc1_h_loop_filter8, 3,5,0 START_H_FILTER 4 call vc1_h_loop_filter_internal lea r0, [r0+4*r1] call vc1_h_loop_filter_internal RET %endmacro INIT_MMX mmxext VC1_LF INIT_XMM sse2 ; void ff_vc1_v_loop_filter8_sse2(uint8_t *src, int stride, int pq) cglobal vc1_v_loop_filter8, 3,5,8 START_V_FILTER VC1_V_LOOP_FILTER 8, q RET ; void ff_vc1_h_loop_filter8_sse2(uint8_t *src, int stride, int pq) cglobal vc1_h_loop_filter8, 3,6,8 START_H_FILTER 8 VC1_H_LOOP_FILTER 8, r5 RET INIT_MMX ssse3 ; void ff_vc1_v_loop_filter4_ssse3(uint8_t *src, int stride, int pq) cglobal vc1_v_loop_filter4, 3,5,0 START_V_FILTER VC1_V_LOOP_FILTER 4, d RET ; void ff_vc1_h_loop_filter4_ssse3(uint8_t *src, int stride, int pq) cglobal vc1_h_loop_filter4, 3,5,0 START_H_FILTER 4 VC1_H_LOOP_FILTER 4, r4 RET INIT_XMM ssse3 ; void ff_vc1_v_loop_filter8_ssse3(uint8_t *src, int stride, int pq) cglobal vc1_v_loop_filter8, 3,5,8 START_V_FILTER VC1_V_LOOP_FILTER 8, q RET ; void ff_vc1_h_loop_filter8_ssse3(uint8_t *src, int stride, int pq) cglobal vc1_h_loop_filter8, 3,6,8 START_H_FILTER 8 VC1_H_LOOP_FILTER 8, r5 RET INIT_XMM sse4 ; void ff_vc1_h_loop_filter8_sse4(uint8_t *src, int stride, int pq) cglobal vc1_h_loop_filter8, 3,5,8 START_H_FILTER 8 VC1_H_LOOP_FILTER 8 RET %if HAVE_MMX_INLINE %macro NORMALIZE_MMX 1 ; shift paddw m3, m7 ; +bias-r paddw m4, m7 ; +bias-r psraw m3, %1 psraw m4, %1 %endmacro ; Compute the rounder 32-r or 8-r and unpacks it to m7 %macro LOAD_ROUNDER_MMX 1 ; round movd m7, %1 punpcklwd m7, m7 punpckldq m7, m7 %endmacro %macro SHIFT2_LINE 5 ; off, r0, r1, r2, r3 paddw m%3, m%4 movh m%2, [srcq + stride_neg2] pmullw m%3, m6 punpcklbw m%2, m0 movh m%5, [srcq + strideq] psubw m%3, m%2 punpcklbw m%5, m0 paddw m%3, m7 psubw m%3, m%5 psraw m%3, shift movu [dstq + %1], m%3 add srcq, strideq %endmacro INIT_MMX mmx ; void ff_vc1_put_ver_16b_shift2_mmx(int16_t *dst, const uint8_t *src, ; x86_reg stride, int rnd, int64_t shift) ; Sacrificing m6 makes it possible to pipeline loads from src %if ARCH_X86_32 cglobal vc1_put_ver_16b_shift2, 3,6,0, dst, src, stride DECLARE_REG_TMP 3, 4, 5 %define rnd r3mp %define shift qword r4m %else ; X86_64 cglobal vc1_put_ver_16b_shift2, 4,7,0, dst, src, stride DECLARE_REG_TMP 4, 5, 6 %define rnd r3d ; We need shift either in memory or in a mm reg as it's used in psraw ; On WIN64, the arg is already on the stack ; On UNIX64, m5 doesn't seem to be used %if WIN64 %define shift r4mp %else ; UNIX64 %define shift m5 mova shift, r4q %endif ; WIN64 %endif ; X86_32 %define stride_neg2 t0q %define stride_9minus4 t1q %define i t2q mov stride_neg2, strideq neg stride_neg2 add stride_neg2, stride_neg2 lea stride_9minus4, [strideq * 9 - 4] mov i, 3 LOAD_ROUNDER_MMX rnd mova m6, [pw_9] pxor m0, m0 .loop: movh m2, [srcq] add srcq, strideq movh m3, [srcq] punpcklbw m2, m0 punpcklbw m3, m0 SHIFT2_LINE 0, 1, 2, 3, 4 SHIFT2_LINE 24, 2, 3, 4, 1 SHIFT2_LINE 48, 3, 4, 1, 2 SHIFT2_LINE 72, 4, 1, 2, 3 SHIFT2_LINE 96, 1, 2, 3, 4 SHIFT2_LINE 120, 2, 3, 4, 1 SHIFT2_LINE 144, 3, 4, 1, 2 SHIFT2_LINE 168, 4, 1, 2, 3 sub srcq, stride_9minus4 add dstq, 8 dec i jnz .loop REP_RET %endif ; HAVE_MMX_INLINE