| /* |
| * Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS). |
| * |
| * 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 <stdint.h> |
| |
| #include "libavutil/attributes.h" |
| #include "libavutil/cpu.h" |
| #include "libavutil/riscv/cpu.h" |
| #include "libavcodec/vc1.h" |
| |
| void ff_vc1_inv_trans_8x8_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block); |
| void ff_vc1_inv_trans_4x8_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block); |
| void ff_vc1_inv_trans_8x4_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block); |
| void ff_vc1_inv_trans_4x4_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block); |
| void ff_put_pixels16x16_rvi(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd); |
| void ff_put_pixels8x8_rvi(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd); |
| void ff_avg_pixels16x16_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd); |
| void ff_avg_pixels8x8_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd); |
| int ff_startcode_find_candidate_rvb(const uint8_t *, int); |
| int ff_startcode_find_candidate_rvv(const uint8_t *, int); |
| int ff_vc1_unescape_buffer_rvv(const uint8_t *, int, uint8_t *); |
| |
| av_cold void ff_vc1dsp_init_riscv(VC1DSPContext *dsp) |
| { |
| #if HAVE_RV |
| int flags = av_get_cpu_flags(); |
| |
| # if __riscv_xlen >= 64 |
| if (flags & AV_CPU_FLAG_RVI) { |
| dsp->put_vc1_mspel_pixels_tab[1][0] = ff_put_pixels8x8_rvi; |
| dsp->put_vc1_mspel_pixels_tab[0][0] = ff_put_pixels16x16_rvi; |
| } |
| # endif |
| if (flags & AV_CPU_FLAG_RVB_BASIC) |
| dsp->startcode_find_candidate = ff_startcode_find_candidate_rvb; |
| # if HAVE_RVV |
| if (flags & AV_CPU_FLAG_RVV_I32) { |
| if (ff_rv_vlen_least(128)) { |
| dsp->vc1_inv_trans_4x8_dc = ff_vc1_inv_trans_4x8_dc_rvv; |
| dsp->vc1_inv_trans_4x4_dc = ff_vc1_inv_trans_4x4_dc_rvv; |
| dsp->avg_vc1_mspel_pixels_tab[0][0] = ff_avg_pixels16x16_rvv; |
| if (flags & AV_CPU_FLAG_RVV_I64) { |
| dsp->vc1_inv_trans_8x8_dc = ff_vc1_inv_trans_8x8_dc_rvv; |
| dsp->vc1_inv_trans_8x4_dc = ff_vc1_inv_trans_8x4_dc_rvv; |
| dsp->avg_vc1_mspel_pixels_tab[1][0] = ff_avg_pixels8x8_rvv; |
| } |
| } |
| dsp->startcode_find_candidate = ff_startcode_find_candidate_rvv; |
| dsp->vc1_unescape_buffer = ff_vc1_unescape_buffer_rvv; |
| } |
| # endif |
| #endif |
| } |