3152c684cb
T-Head C908 (cycles): vc1dsp.vc1_inv_trans_4x4_c: 310.7 vc1dsp.vc1_inv_trans_4x4_rvv_i32: 120.0 We could use 1 `vlseg4e64.v` instead of 4 `vle16.v`, but that seems to be about 7% slower.
79 lines
3.5 KiB
C
79 lines
3.5 KiB
C
/*
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* Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS).
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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 <stdint.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/vc1.h"
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void ff_vc1_inv_trans_8x8_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void ff_vc1_inv_trans_8x8_rvv(int16_t block[64]);
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void ff_vc1_inv_trans_4x8_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void ff_vc1_inv_trans_4x8_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void ff_vc1_inv_trans_8x4_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void ff_vc1_inv_trans_8x4_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void ff_vc1_inv_trans_4x4_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void ff_vc1_inv_trans_4x4_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void ff_put_pixels16x16_rvi(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd);
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void ff_put_pixels8x8_rvi(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd);
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void ff_avg_pixels16x16_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd);
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void ff_avg_pixels8x8_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd);
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int ff_startcode_find_candidate_rvb(const uint8_t *, int);
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int ff_startcode_find_candidate_rvv(const uint8_t *, int);
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int ff_vc1_unescape_buffer_rvv(const uint8_t *, int, uint8_t *);
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av_cold void ff_vc1dsp_init_riscv(VC1DSPContext *dsp)
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{
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#if HAVE_RV
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int flags = av_get_cpu_flags();
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# if __riscv_xlen >= 64
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if (flags & AV_CPU_FLAG_RVI) {
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dsp->put_vc1_mspel_pixels_tab[1][0] = ff_put_pixels8x8_rvi;
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dsp->put_vc1_mspel_pixels_tab[0][0] = ff_put_pixels16x16_rvi;
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}
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# endif
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if (flags & AV_CPU_FLAG_RVB_BASIC)
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dsp->startcode_find_candidate = ff_startcode_find_candidate_rvb;
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# if HAVE_RVV
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if (flags & AV_CPU_FLAG_RVV_I32) {
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if (ff_rv_vlen_least(128)) {
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dsp->vc1_inv_trans_8x8 = ff_vc1_inv_trans_8x8_rvv;
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dsp->vc1_inv_trans_8x4 = ff_vc1_inv_trans_8x4_rvv;
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dsp->vc1_inv_trans_4x8 = ff_vc1_inv_trans_4x8_rvv;
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dsp->vc1_inv_trans_4x4 = ff_vc1_inv_trans_4x4_rvv;
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dsp->vc1_inv_trans_4x8_dc = ff_vc1_inv_trans_4x8_dc_rvv;
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dsp->vc1_inv_trans_4x4_dc = ff_vc1_inv_trans_4x4_dc_rvv;
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dsp->avg_vc1_mspel_pixels_tab[0][0] = ff_avg_pixels16x16_rvv;
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dsp->avg_vc1_mspel_pixels_tab[1][0] = ff_avg_pixels8x8_rvv;
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if (flags & AV_CPU_FLAG_RVV_I64) {
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dsp->vc1_inv_trans_8x8_dc = ff_vc1_inv_trans_8x8_dc_rvv;
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dsp->vc1_inv_trans_8x4_dc = ff_vc1_inv_trans_8x4_dc_rvv;
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}
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}
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dsp->startcode_find_candidate = ff_startcode_find_candidate_rvv;
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dsp->vc1_unescape_buffer = ff_vc1_unescape_buffer_rvv;
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}
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# endif
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#endif
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}
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