ref: 690ed6881305c9ba403b5d62f3c40698d15bfe99
dir: /src/x86/looprestoration_init.c/
/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "src/cpu.h" #include "src/looprestoration.h" #include "common/attributes.h" #include "common/intops.h" #if BITDEPTH == 8 && ARCH_X86_64 void dav1d_wiener_filter_h_avx2(int16_t *dst, const pixel (*left)[4], const pixel *src, ptrdiff_t stride, const int16_t fh[7], const intptr_t w, int h, enum LrEdgeFlags edges); void dav1d_wiener_filter_v_avx2(pixel *dst, ptrdiff_t stride, const int16_t *mid, int w, int h, const int16_t fv[7], enum LrEdgeFlags edges); // Future potential optimizations: // - special chroma versions which don't filter [0]/[6]; // - running filter_h_avx2 transposed (one col of 32 pixels per iteration, top // to bottom) instead of scanline-ordered should be faster since then the // if (have_left) and similar conditions run only once instead of per line; // - filter_v_avx2 currently runs 16 pixels per iteration, it should be possible // to run 32 (like filter_h_avx2), and then all vpermqs can go; // - maybe split out the top/bottom filter_h_avx2 from the main body filter_h_avx2, // since then the have_left condition can be inlined; // - consider having the wrapper (wiener_filter_avx2) also in hand-written // assembly, so the setup overhead is minimized. static void wiener_filter_avx2(pixel *const dst, const ptrdiff_t dst_stride, const pixel (*const left)[4], const pixel *lpf, const ptrdiff_t lpf_stride, const int w, const int h, const int16_t fh[7], const int16_t fv[7], const enum LrEdgeFlags edges) { ALIGN_STK_32(int16_t, mid, 68 * 384,); // horizontal filter dav1d_wiener_filter_h_avx2(&mid[2 * 384], left, dst, dst_stride, fh, w, h, edges); if (edges & LR_HAVE_TOP) dav1d_wiener_filter_h_avx2(mid, NULL, lpf, lpf_stride, fh, w, 2, edges); if (edges & LR_HAVE_BOTTOM) dav1d_wiener_filter_h_avx2(&mid[(2 + h) * 384], NULL, lpf + 6 * PXSTRIDE(lpf_stride), lpf_stride, fh, w, 2, edges); dav1d_wiener_filter_v_avx2(dst, dst_stride, &mid[2*384], w, h, fv, edges); } #endif void bitfn(dav1d_loop_restoration_dsp_init_x86)(Dav1dLoopRestorationDSPContext *const c) { const unsigned flags = dav1d_get_cpu_flags(); if (!(flags & DAV1D_X86_CPU_FLAG_AVX2)) return; #if BITDEPTH == 8 && ARCH_X86_64 c->wiener = wiener_filter_avx2; #endif }