/* * Copyright (C) 2002-2012 Michael Niedermayer * Copyright (C) 2012 Ronald S. Bultje * * 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 "config.h" #include "libavutil/attributes.h" #include "libavutil/avassert.h" #include "libavutil/common.h" #include "libavutil/cpu.h" #include "libavutil/x86/asm.h" #include "libavutil/x86/cpu.h" #include "libavcodec/videodsp.h" #if HAVE_X86ASM typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride, const uint8_t *src, x86_reg src_stride, x86_reg start_y, x86_reg end_y, x86_reg bh); typedef void emu_edge_vvar_func(uint8_t *dst, x86_reg dst_stride, const uint8_t *src, x86_reg src_stride, x86_reg start_y, x86_reg end_y, x86_reg bh, x86_reg w); extern emu_edge_vfix_func ff_emu_edge_vfix1_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix2_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix3_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix4_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix5_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix6_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix7_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix8_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix9_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix10_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix11_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix12_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix13_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix14_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix15_mmx; extern emu_edge_vfix_func ff_emu_edge_vfix16_sse; extern emu_edge_vfix_func ff_emu_edge_vfix17_sse; extern emu_edge_vfix_func ff_emu_edge_vfix18_sse; extern emu_edge_vfix_func ff_emu_edge_vfix19_sse; extern emu_edge_vfix_func ff_emu_edge_vfix20_sse; extern emu_edge_vfix_func ff_emu_edge_vfix21_sse; extern emu_edge_vfix_func ff_emu_edge_vfix22_sse; static emu_edge_vfix_func * const vfixtbl_sse[22] = { ff_emu_edge_vfix1_mmx, ff_emu_edge_vfix2_mmx, ff_emu_edge_vfix3_mmx, ff_emu_edge_vfix4_mmx, ff_emu_edge_vfix5_mmx, ff_emu_edge_vfix6_mmx, ff_emu_edge_vfix7_mmx, ff_emu_edge_vfix8_mmx, ff_emu_edge_vfix9_mmx, ff_emu_edge_vfix10_mmx, ff_emu_edge_vfix11_mmx, ff_emu_edge_vfix12_mmx, ff_emu_edge_vfix13_mmx, ff_emu_edge_vfix14_mmx, ff_emu_edge_vfix15_mmx, ff_emu_edge_vfix16_sse, ff_emu_edge_vfix17_sse, ff_emu_edge_vfix18_sse, ff_emu_edge_vfix19_sse, ff_emu_edge_vfix20_sse, ff_emu_edge_vfix21_sse, ff_emu_edge_vfix22_sse }; extern emu_edge_vvar_func ff_emu_edge_vvar_sse; typedef void emu_edge_hfix_func(uint8_t *dst, x86_reg dst_stride, x86_reg start_x, x86_reg bh); typedef void emu_edge_hvar_func(uint8_t *dst, x86_reg dst_stride, x86_reg start_x, x86_reg n_words, x86_reg bh); extern emu_edge_hfix_func ff_emu_edge_hfix2_mmx; extern emu_edge_hfix_func ff_emu_edge_hfix4_mmx; extern emu_edge_hfix_func ff_emu_edge_hfix6_mmx; extern emu_edge_hfix_func ff_emu_edge_hfix8_mmx; extern emu_edge_hfix_func ff_emu_edge_hfix10_mmx; extern emu_edge_hfix_func ff_emu_edge_hfix12_mmx; extern emu_edge_hfix_func ff_emu_edge_hfix14_mmx; extern emu_edge_hfix_func ff_emu_edge_hfix16_sse2; extern emu_edge_hfix_func ff_emu_edge_hfix18_sse2; extern emu_edge_hfix_func ff_emu_edge_hfix20_sse2; extern emu_edge_hfix_func ff_emu_edge_hfix22_sse2; static emu_edge_hfix_func * const hfixtbl_sse2[11] = { ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx, ff_emu_edge_hfix8_mmx, ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx, ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_sse2, ff_emu_edge_hfix18_sse2, ff_emu_edge_hfix20_sse2, ff_emu_edge_hfix22_sse2 }; extern emu_edge_hvar_func ff_emu_edge_hvar_sse2; #if HAVE_AVX2_EXTERNAL extern emu_edge_hfix_func ff_emu_edge_hfix8_avx2; extern emu_edge_hfix_func ff_emu_edge_hfix10_avx2; extern emu_edge_hfix_func ff_emu_edge_hfix12_avx2; extern emu_edge_hfix_func ff_emu_edge_hfix14_avx2; extern emu_edge_hfix_func ff_emu_edge_hfix16_avx2; extern emu_edge_hfix_func ff_emu_edge_hfix18_avx2; extern emu_edge_hfix_func ff_emu_edge_hfix20_avx2; extern emu_edge_hfix_func ff_emu_edge_hfix22_avx2; static emu_edge_hfix_func * const hfixtbl_avx2[11] = { ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx, ff_emu_edge_hfix8_avx2, ff_emu_edge_hfix10_avx2, ff_emu_edge_hfix12_avx2, ff_emu_edge_hfix14_avx2, ff_emu_edge_hfix16_avx2, ff_emu_edge_hfix18_avx2, ff_emu_edge_hfix20_avx2, ff_emu_edge_hfix22_avx2 }; extern emu_edge_hvar_func ff_emu_edge_hvar_avx2; #endif static av_always_inline void emulated_edge_mc(uint8_t *dst, const uint8_t *src, ptrdiff_t dst_stride, ptrdiff_t src_stride, x86_reg block_w, x86_reg block_h, x86_reg src_x, x86_reg src_y, x86_reg w, x86_reg h, emu_edge_vfix_func * const *vfix_tbl, emu_edge_vvar_func *v_extend_var, emu_edge_hfix_func * const *hfix_tbl, emu_edge_hvar_func *h_extend_var) { x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p; if (!w || !h) return; av_assert2(block_w <= FFABS(dst_stride)); if (src_y >= h) { src -= src_y*src_stride; src_y_add = h - 1; src_y = h - 1; } else if (src_y <= -block_h) { src -= src_y*src_stride; src_y_add = 1 - block_h; src_y = 1 - block_h; } if (src_x >= w) { src += w - 1 - src_x; src_x = w - 1; } else if (src_x <= -block_w) { src += 1 - block_w - src_x; src_x = 1 - block_w; } start_y = FFMAX(0, -src_y); start_x = FFMAX(0, -src_x); end_y = FFMIN(block_h, h-src_y); end_x = FFMIN(block_w, w-src_x); av_assert2(start_x < end_x && block_w > 0); av_assert2(start_y < end_y && block_h > 0); // fill in the to-be-copied part plus all above/below src += (src_y_add + start_y) * src_stride + start_x; w = end_x - start_x; if (w <= 22) { vfix_tbl[w - 1](dst + start_x, dst_stride, src, src_stride, start_y, end_y, block_h); } else { v_extend_var(dst + start_x, dst_stride, src, src_stride, start_y, end_y, block_h, w); } // fill left if (start_x) { if (start_x <= 22) { hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h); } else { h_extend_var(dst, dst_stride, start_x, (start_x + 1) >> 1, block_h); } } // fill right p = block_w - end_x; if (p) { if (p <= 22) { hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride, -!(p & 1), block_h); } else { h_extend_var(dst + end_x - (p & 1), dst_stride, -!(p & 1), (p + 1) >> 1, block_h); } } } static av_noinline void emulated_edge_mc_sse2(uint8_t *buf, const uint8_t *src, ptrdiff_t buf_stride, ptrdiff_t src_stride, int block_w, int block_h, int src_x, int src_y, int w, int h) { emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h, src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse, hfixtbl_sse2, &ff_emu_edge_hvar_sse2); } #if HAVE_AVX2_EXTERNAL static av_noinline void emulated_edge_mc_avx2(uint8_t *buf, const uint8_t *src, ptrdiff_t buf_stride, ptrdiff_t src_stride, int block_w, int block_h, int src_x, int src_y, int w, int h) { emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h, src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse, hfixtbl_avx2, &ff_emu_edge_hvar_avx2); } #endif /* HAVE_AVX2_EXTERNAL */ #endif /* HAVE_X86ASM */ void ff_prefetch_mmxext(const uint8_t *buf, ptrdiff_t stride, int h); av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc) { #if HAVE_X86ASM int cpu_flags = av_get_cpu_flags(); if (EXTERNAL_MMXEXT(cpu_flags)) { ctx->prefetch = ff_prefetch_mmxext; } if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) { ctx->emulated_edge_mc = emulated_edge_mc_sse2; } #if HAVE_AVX2_EXTERNAL if (EXTERNAL_AVX2(cpu_flags) && bpc <= 8) { ctx->emulated_edge_mc = emulated_edge_mc_avx2; } #endif #endif /* HAVE_X86ASM */ }