| /* | |
| * 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 */ | |
| } |