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59 lines
2.1 KiB
59 lines
2.1 KiB
/* |
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* Copyright (c) 2024 Rémi Denis-Courmont. |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "config.h" |
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#include "libavutil/attributes.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/riscv/cpu.h" |
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#include "libavcodec/vp8dsp.h" |
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void ff_vp7_luma_dc_wht_rvv(int16_t block[4][4][16], int16_t dc[16]); |
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void ff_vp7_idct_add_rvv(uint8_t *dst, int16_t block[16], ptrdiff_t stride); |
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void ff_vp78_idct_dc_add_rvv(uint8_t *, int16_t block[16], ptrdiff_t, int dc); |
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void ff_vp7_idct_dc_add4y_rvv(uint8_t *dst, int16_t block[4][16], ptrdiff_t); |
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void ff_vp7_idct_dc_add4uv_rvv(uint8_t *dst, int16_t block[4][16], ptrdiff_t); |
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static void ff_vp7_idct_dc_add_rvv(uint8_t *dst, int16_t block[16], |
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ptrdiff_t stride) |
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{ |
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int dc = (23170 * (23170 * block[0] >> 14) + 0x20000) >> 18; |
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ff_vp78_idct_dc_add_rvv(dst, block, stride, dc); |
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} |
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av_cold void ff_vp7dsp_init_riscv(VP8DSPContext *c) |
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{ |
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#if HAVE_RVV |
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int flags = av_get_cpu_flags(); |
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if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB) && |
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ff_rv_vlen_least(128)) { |
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#if __riscv_xlen >= 64 |
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c->vp8_luma_dc_wht = ff_vp7_luma_dc_wht_rvv; |
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c->vp8_idct_add = ff_vp7_idct_add_rvv; |
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#endif |
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c->vp8_idct_dc_add = ff_vp7_idct_dc_add_rvv; |
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c->vp8_idct_dc_add4y = ff_vp7_idct_dc_add4y_rvv; |
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if (flags & AV_CPU_FLAG_RVV_I64) |
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c->vp8_idct_dc_add4uv = ff_vp7_idct_dc_add4uv_rvv; |
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} |
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#endif |
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}
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