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Diffstat (limited to 'libavcodec/x86/synth_filter.asm')
| -rw-r--r-- | libavcodec/x86/synth_filter.asm | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/libavcodec/x86/synth_filter.asm b/libavcodec/x86/synth_filter.asm new file mode 100644 index 0000000000..bc1a48f409 --- /dev/null +++ b/libavcodec/x86/synth_filter.asm @@ -0,0 +1,246 @@ +;****************************************************************************** +;* SSE-optimized functions for the DCA decoder +;* Copyright (C) 2012-2014 Christophe Gisquet <christophe.gisquet@gmail.com> +;* +;* 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" + +SECTION .text + +%macro SETZERO 1 +%if cpuflag(sse2) && notcpuflag(avx) + pxor %1, %1 +%else + xorps %1, %1, %1 +%endif +%endmacro + +%macro SHUF 3 +%if cpuflag(avx) + mova %3, [%2 - 16] + vperm2f128 %1, %3, %3, 1 + vshufps %1, %1, %1, q0123 +%elif cpuflag(sse2) + pshufd %1, [%2], q0123 +%else + mova %1, [%2] + shufps %1, %1, q0123 +%endif +%endmacro + +%macro INNER_LOOP 1 + ; reading backwards: ptr1 = synth_buf + j + i; ptr2 = synth_buf + j - i + ;~ a += window[i + j] * (-synth_buf[15 - i + j]) + ;~ b += window[i + j + 16] * (synth_buf[i + j]) + SHUF m5, ptr2 + j + (15 - 3) * 4, m6 + mova m6, [ptr1 + j] +%if ARCH_X86_64 + SHUF m11, ptr2 + j + (15 - 3) * 4 - mmsize, m12 + mova m12, [ptr1 + j + mmsize] +%endif +%if cpuflag(fma3) + fmaddps m2, m6, [win + %1 + j + 16 * 4], m2 + fnmaddps m1, m5, [win + %1 + j], m1 +%if ARCH_X86_64 + fmaddps m8, m12, [win + %1 + j + mmsize + 16 * 4], m8 + fnmaddps m7, m11, [win + %1 + j + mmsize], m7 +%endif +%else ; non-FMA + mulps m6, m6, [win + %1 + j + 16 * 4] + mulps m5, m5, [win + %1 + j] +%if ARCH_X86_64 + mulps m12, m12, [win + %1 + j + mmsize + 16 * 4] + mulps m11, m11, [win + %1 + j + mmsize] +%endif + addps m2, m2, m6 + subps m1, m1, m5 +%if ARCH_X86_64 + addps m8, m8, m12 + subps m7, m7, m11 +%endif +%endif ; cpuflag(fma3) + ;~ c += window[i + j + 32] * (synth_buf[16 + i + j]) + ;~ d += window[i + j + 48] * (synth_buf[31 - i + j]) + SHUF m6, ptr2 + j + (31 - 3) * 4, m5 + mova m5, [ptr1 + j + 16 * 4] +%if ARCH_X86_64 + SHUF m12, ptr2 + j + (31 - 3) * 4 - mmsize, m11 + mova m11, [ptr1 + j + mmsize + 16 * 4] +%endif +%if cpuflag(fma3) + fmaddps m3, m5, [win + %1 + j + 32 * 4], m3 + fmaddps m4, m6, [win + %1 + j + 48 * 4], m4 +%if ARCH_X86_64 + fmaddps m9, m11, [win + %1 + j + mmsize + 32 * 4], m9 + fmaddps m10, m12, [win + %1 + j + mmsize + 48 * 4], m10 +%endif +%else ; non-FMA + mulps m5, m5, [win + %1 + j + 32 * 4] + mulps m6, m6, [win + %1 + j + 48 * 4] +%if ARCH_X86_64 + mulps m11, m11, [win + %1 + j + mmsize + 32 * 4] + mulps m12, m12, [win + %1 + j + mmsize + 48 * 4] +%endif + addps m3, m3, m5 + addps m4, m4, m6 +%if ARCH_X86_64 + addps m9, m9, m11 + addps m10, m10, m12 +%endif +%endif ; cpuflag(fma3) + sub j, 64 * 4 +%endmacro + +; void ff_synth_filter_inner_<opt>(float *synth_buf, float synth_buf2[32], +; const float window[512], float out[32], +; intptr_t offset, float scale) +%macro SYNTH_FILTER 0 +cglobal synth_filter_inner, 0, 6 + 4 * ARCH_X86_64, 7 + 6 * ARCH_X86_64, \ + synth_buf, synth_buf2, window, out, off, scale +%define scale m0 +%if ARCH_X86_32 || WIN64 +%if cpuflag(sse2) && notcpuflag(avx) + movd scale, scalem + SPLATD m0 +%else + VBROADCASTSS m0, scalem +%endif +; Make sure offset is in a register and not on the stack +%define OFFQ r4q +%else + SPLATD xmm0 +%if cpuflag(avx) + vinsertf128 m0, m0, xmm0, 1 +%endif +%define OFFQ offq +%endif + ; prepare inner counter limit 1 + mov r5q, 480 + sub r5q, offmp + and r5q, -64 + shl r5q, 2 +%if ARCH_X86_32 || notcpuflag(avx) + mov OFFQ, r5q +%define i r5q + mov i, 16 * 4 - (ARCH_X86_64 + 1) * mmsize ; main loop counter +%else +%define i 0 +%define OFFQ r5q +%endif + +%define buf2 synth_buf2q +%if ARCH_X86_32 + mov buf2, synth_buf2mp +%endif +.mainloop: + ; m1 = a m2 = b m3 = c m4 = d + SETZERO m3 + SETZERO m4 + mova m1, [buf2 + i] + mova m2, [buf2 + i + 16 * 4] +%if ARCH_X86_32 +%define ptr1 r0q +%define ptr2 r1q +%define win r2q +%define j r3q + mov win, windowm + mov ptr1, synth_bufm +%if ARCH_X86_32 || notcpuflag(avx) + add win, i + add ptr1, i +%endif +%else ; ARCH_X86_64 +%define ptr1 r6q +%define ptr2 r7q ; must be loaded +%define win r8q +%define j r9q + SETZERO m9 + SETZERO m10 + mova m7, [buf2 + i + mmsize] + mova m8, [buf2 + i + mmsize + 16 * 4] + lea win, [windowq + i] + lea ptr1, [synth_bufq + i] +%endif + mov ptr2, synth_bufmp + ; prepare the inner loop counter + mov j, OFFQ +%if ARCH_X86_32 || notcpuflag(avx) + sub ptr2, i +%endif +.loop1: + INNER_LOOP 0 + jge .loop1 + + mov j, 448 * 4 + sub j, OFFQ + jz .end + sub ptr1, j + sub ptr2, j + add win, OFFQ ; now at j-64, so define OFFSET + sub j, 64 * 4 +.loop2: + INNER_LOOP 64 * 4 + jge .loop2 + +.end: +%if ARCH_X86_32 + mov buf2, synth_buf2m ; needed for next iteration anyway + mov outq, outmp ; j, which will be set again during it +%endif + ;~ out[i] = a * scale; + ;~ out[i + 16] = b * scale; + mulps m1, m1, scale + mulps m2, m2, scale +%if ARCH_X86_64 + mulps m7, m7, scale + mulps m8, m8, scale +%endif + ;~ synth_buf2[i] = c; + ;~ synth_buf2[i + 16] = d; + mova [buf2 + i + 0 * 4], m3 + mova [buf2 + i + 16 * 4], m4 +%if ARCH_X86_64 + mova [buf2 + i + 0 * 4 + mmsize], m9 + mova [buf2 + i + 16 * 4 + mmsize], m10 +%endif + ;~ out[i] = a; + ;~ out[i + 16] = a; + mova [outq + i + 0 * 4], m1 + mova [outq + i + 16 * 4], m2 +%if ARCH_X86_64 + mova [outq + i + 0 * 4 + mmsize], m7 + mova [outq + i + 16 * 4 + mmsize], m8 +%endif +%if ARCH_X86_32 || notcpuflag(avx) + sub i, (ARCH_X86_64 + 1) * mmsize + jge .mainloop +%endif + RET +%endmacro + +%if ARCH_X86_32 +INIT_XMM sse +SYNTH_FILTER +%endif +INIT_XMM sse2 +SYNTH_FILTER +INIT_YMM avx +SYNTH_FILTER +INIT_YMM fma3 +SYNTH_FILTER |