1/* 2 * Copyright (C) 2002-2012 Michael Niedermayer 3 * Copyright (C) 2012 Ronald S. Bultje 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22#include "config.h" 23#include "libavutil/attributes.h" 24#include "libavutil/avassert.h" 25#include "libavutil/common.h" 26#include "libavutil/cpu.h" 27#include "libavutil/mem.h" 28#include "libavutil/x86/asm.h" 29#include "libavutil/x86/cpu.h" 30#include "libavcodec/videodsp.h" 31 32#if HAVE_YASM 33typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride, 34 const uint8_t *src, x86_reg src_stride, 35 x86_reg start_y, x86_reg end_y, x86_reg bh); 36typedef void emu_edge_vvar_func(uint8_t *dst, x86_reg dst_stride, 37 const uint8_t *src, x86_reg src_stride, 38 x86_reg start_y, x86_reg end_y, x86_reg bh, 39 x86_reg w); 40 41extern emu_edge_vfix_func ff_emu_edge_vfix1_mmx; 42extern emu_edge_vfix_func ff_emu_edge_vfix2_mmx; 43extern emu_edge_vfix_func ff_emu_edge_vfix3_mmx; 44extern emu_edge_vfix_func ff_emu_edge_vfix4_mmx; 45extern emu_edge_vfix_func ff_emu_edge_vfix5_mmx; 46extern emu_edge_vfix_func ff_emu_edge_vfix6_mmx; 47extern emu_edge_vfix_func ff_emu_edge_vfix7_mmx; 48extern emu_edge_vfix_func ff_emu_edge_vfix8_mmx; 49extern emu_edge_vfix_func ff_emu_edge_vfix9_mmx; 50extern emu_edge_vfix_func ff_emu_edge_vfix10_mmx; 51extern emu_edge_vfix_func ff_emu_edge_vfix11_mmx; 52extern emu_edge_vfix_func ff_emu_edge_vfix12_mmx; 53extern emu_edge_vfix_func ff_emu_edge_vfix13_mmx; 54extern emu_edge_vfix_func ff_emu_edge_vfix14_mmx; 55extern emu_edge_vfix_func ff_emu_edge_vfix15_mmx; 56extern emu_edge_vfix_func ff_emu_edge_vfix16_mmx; 57extern emu_edge_vfix_func ff_emu_edge_vfix17_mmx; 58extern emu_edge_vfix_func ff_emu_edge_vfix18_mmx; 59extern emu_edge_vfix_func ff_emu_edge_vfix19_mmx; 60extern emu_edge_vfix_func ff_emu_edge_vfix20_mmx; 61extern emu_edge_vfix_func ff_emu_edge_vfix21_mmx; 62extern emu_edge_vfix_func ff_emu_edge_vfix22_mmx; 63#if ARCH_X86_32 64static emu_edge_vfix_func *vfixtbl_mmx[22] = { 65 &ff_emu_edge_vfix1_mmx, &ff_emu_edge_vfix2_mmx, &ff_emu_edge_vfix3_mmx, 66 &ff_emu_edge_vfix4_mmx, &ff_emu_edge_vfix5_mmx, &ff_emu_edge_vfix6_mmx, 67 &ff_emu_edge_vfix7_mmx, &ff_emu_edge_vfix8_mmx, &ff_emu_edge_vfix9_mmx, 68 &ff_emu_edge_vfix10_mmx, &ff_emu_edge_vfix11_mmx, &ff_emu_edge_vfix12_mmx, 69 &ff_emu_edge_vfix13_mmx, &ff_emu_edge_vfix14_mmx, &ff_emu_edge_vfix15_mmx, 70 &ff_emu_edge_vfix16_mmx, &ff_emu_edge_vfix17_mmx, &ff_emu_edge_vfix18_mmx, 71 &ff_emu_edge_vfix19_mmx, &ff_emu_edge_vfix20_mmx, &ff_emu_edge_vfix21_mmx, 72 &ff_emu_edge_vfix22_mmx 73}; 74#endif 75extern emu_edge_vvar_func ff_emu_edge_vvar_mmx; 76extern emu_edge_vfix_func ff_emu_edge_vfix16_sse; 77extern emu_edge_vfix_func ff_emu_edge_vfix17_sse; 78extern emu_edge_vfix_func ff_emu_edge_vfix18_sse; 79extern emu_edge_vfix_func ff_emu_edge_vfix19_sse; 80extern emu_edge_vfix_func ff_emu_edge_vfix20_sse; 81extern emu_edge_vfix_func ff_emu_edge_vfix21_sse; 82extern emu_edge_vfix_func ff_emu_edge_vfix22_sse; 83static emu_edge_vfix_func *vfixtbl_sse[22] = { 84 ff_emu_edge_vfix1_mmx, ff_emu_edge_vfix2_mmx, ff_emu_edge_vfix3_mmx, 85 ff_emu_edge_vfix4_mmx, ff_emu_edge_vfix5_mmx, ff_emu_edge_vfix6_mmx, 86 ff_emu_edge_vfix7_mmx, ff_emu_edge_vfix8_mmx, ff_emu_edge_vfix9_mmx, 87 ff_emu_edge_vfix10_mmx, ff_emu_edge_vfix11_mmx, ff_emu_edge_vfix12_mmx, 88 ff_emu_edge_vfix13_mmx, ff_emu_edge_vfix14_mmx, ff_emu_edge_vfix15_mmx, 89 ff_emu_edge_vfix16_sse, ff_emu_edge_vfix17_sse, ff_emu_edge_vfix18_sse, 90 ff_emu_edge_vfix19_sse, ff_emu_edge_vfix20_sse, ff_emu_edge_vfix21_sse, 91 ff_emu_edge_vfix22_sse 92}; 93extern emu_edge_vvar_func ff_emu_edge_vvar_sse; 94 95typedef void emu_edge_hfix_func(uint8_t *dst, x86_reg dst_stride, 96 x86_reg start_x, x86_reg bh); 97typedef void emu_edge_hvar_func(uint8_t *dst, x86_reg dst_stride, 98 x86_reg start_x, x86_reg n_words, x86_reg bh); 99 100extern emu_edge_hfix_func ff_emu_edge_hfix2_mmx; 101extern emu_edge_hfix_func ff_emu_edge_hfix4_mmx; 102extern emu_edge_hfix_func ff_emu_edge_hfix6_mmx; 103extern emu_edge_hfix_func ff_emu_edge_hfix8_mmx; 104extern emu_edge_hfix_func ff_emu_edge_hfix10_mmx; 105extern emu_edge_hfix_func ff_emu_edge_hfix12_mmx; 106extern emu_edge_hfix_func ff_emu_edge_hfix14_mmx; 107extern emu_edge_hfix_func ff_emu_edge_hfix16_mmx; 108extern emu_edge_hfix_func ff_emu_edge_hfix18_mmx; 109extern emu_edge_hfix_func ff_emu_edge_hfix20_mmx; 110extern emu_edge_hfix_func ff_emu_edge_hfix22_mmx; 111#if ARCH_X86_32 112static emu_edge_hfix_func *hfixtbl_mmx[11] = { 113 ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx, 114 ff_emu_edge_hfix8_mmx, ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx, 115 ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_mmx, ff_emu_edge_hfix18_mmx, 116 ff_emu_edge_hfix20_mmx, ff_emu_edge_hfix22_mmx 117}; 118#endif 119extern emu_edge_hvar_func ff_emu_edge_hvar_mmx; 120extern emu_edge_hfix_func ff_emu_edge_hfix16_sse2; 121extern emu_edge_hfix_func ff_emu_edge_hfix18_sse2; 122extern emu_edge_hfix_func ff_emu_edge_hfix20_sse2; 123extern emu_edge_hfix_func ff_emu_edge_hfix22_sse2; 124static emu_edge_hfix_func *hfixtbl_sse2[11] = { 125 ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx, 126 ff_emu_edge_hfix8_mmx, ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx, 127 ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_sse2, ff_emu_edge_hfix18_sse2, 128 ff_emu_edge_hfix20_sse2, ff_emu_edge_hfix22_sse2 129}; 130extern emu_edge_hvar_func ff_emu_edge_hvar_sse2; 131 132static av_always_inline void emulated_edge_mc(uint8_t *dst, const uint8_t *src, 133 ptrdiff_t dst_stride, 134 ptrdiff_t src_stride, 135 x86_reg block_w, x86_reg block_h, 136 x86_reg src_x, x86_reg src_y, 137 x86_reg w, x86_reg h, 138 emu_edge_vfix_func **vfix_tbl, 139 emu_edge_vvar_func *v_extend_var, 140 emu_edge_hfix_func **hfix_tbl, 141 emu_edge_hvar_func *h_extend_var) 142{ 143 x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p; 144 145 if (!w || !h) 146 return; 147 148 if (src_y >= h) { 149 src -= src_y*src_stride; 150 src_y_add = h - 1; 151 src_y = h - 1; 152 } else if (src_y <= -block_h) { 153 src -= src_y*src_stride; 154 src_y_add = 1 - block_h; 155 src_y = 1 - block_h; 156 } 157 if (src_x >= w) { 158 src += w - 1 - src_x; 159 src_x = w - 1; 160 } else if (src_x <= -block_w) { 161 src += 1 - block_w - src_x; 162 src_x = 1 - block_w; 163 } 164 165 start_y = FFMAX(0, -src_y); 166 start_x = FFMAX(0, -src_x); 167 end_y = FFMIN(block_h, h-src_y); 168 end_x = FFMIN(block_w, w-src_x); 169 av_assert2(start_x < end_x && block_w > 0); 170 av_assert2(start_y < end_y && block_h > 0); 171 172 // fill in the to-be-copied part plus all above/below 173 src += (src_y_add + start_y) * src_stride + start_x; 174 w = end_x - start_x; 175 if (w <= 22) { 176 vfix_tbl[w - 1](dst + start_x, dst_stride, src, src_stride, 177 start_y, end_y, block_h); 178 } else { 179 v_extend_var(dst + start_x, dst_stride, src, src_stride, 180 start_y, end_y, block_h, w); 181 } 182 183 // fill left 184 if (start_x) { 185 if (start_x <= 22) { 186 hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h); 187 } else { 188 h_extend_var(dst, dst_stride, 189 start_x, (start_x + 1) >> 1, block_h); 190 } 191 } 192 193 // fill right 194 p = block_w - end_x; 195 if (p) { 196 if (p <= 22) { 197 hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride, 198 -!(p & 1), block_h); 199 } else { 200 h_extend_var(dst + end_x - (p & 1), dst_stride, 201 -!(p & 1), (p + 1) >> 1, block_h); 202 } 203 } 204} 205 206#if ARCH_X86_32 207static av_noinline void emulated_edge_mc_mmx(uint8_t *buf, const uint8_t *src, 208 ptrdiff_t buf_stride, 209 ptrdiff_t src_stride, 210 int block_w, int block_h, 211 int src_x, int src_y, int w, int h) 212{ 213 emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h, 214 src_x, src_y, w, h, vfixtbl_mmx, &ff_emu_edge_vvar_mmx, 215 hfixtbl_mmx, &ff_emu_edge_hvar_mmx); 216} 217 218static av_noinline void emulated_edge_mc_sse(uint8_t *buf, const uint8_t *src, 219 ptrdiff_t buf_stride, 220 ptrdiff_t src_stride, 221 int block_w, int block_h, 222 int src_x, int src_y, int w, int h) 223{ 224 emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h, 225 src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse, 226 hfixtbl_mmx, &ff_emu_edge_hvar_mmx); 227} 228#endif 229 230static av_noinline void emulated_edge_mc_sse2(uint8_t *buf, const uint8_t *src, 231 ptrdiff_t buf_stride, 232 ptrdiff_t src_stride, 233 int block_w, int block_h, 234 int src_x, int src_y, int w, 235 int h) 236{ 237 emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h, 238 src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse, 239 hfixtbl_sse2, &ff_emu_edge_hvar_sse2); 240} 241#endif /* HAVE_YASM */ 242 243void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h); 244void ff_prefetch_3dnow(uint8_t *buf, ptrdiff_t stride, int h); 245 246av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc) 247{ 248#if HAVE_YASM 249 int cpu_flags = av_get_cpu_flags(); 250 251#if ARCH_X86_32 252 if (EXTERNAL_MMX(cpu_flags) && bpc <= 8) { 253 ctx->emulated_edge_mc = emulated_edge_mc_mmx; 254 } 255 if (EXTERNAL_AMD3DNOW(cpu_flags)) { 256 ctx->prefetch = ff_prefetch_3dnow; 257 } 258#endif /* ARCH_X86_32 */ 259 if (EXTERNAL_MMXEXT(cpu_flags)) { 260 ctx->prefetch = ff_prefetch_mmxext; 261 } 262#if ARCH_X86_32 263 if (EXTERNAL_SSE(cpu_flags) && bpc <= 8) { 264 ctx->emulated_edge_mc = emulated_edge_mc_sse; 265 } 266#endif /* ARCH_X86_32 */ 267 if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) { 268 ctx->emulated_edge_mc = emulated_edge_mc_sse2; 269 } 270#endif /* HAVE_YASM */ 271} 272