The code is already there, we just need to use it. get_pixels_unaligned_c: 2.2 get_pixels_unaligned_misaligned: 1.7
		
			
				
	
	
		
			82 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright © 2022 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 <stdint.h>
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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/avcodec.h"
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#include "libavcodec/pixblockdsp.h"
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void ff_get_pixels_8_rvi(int16_t *block, const uint8_t *pixels,
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                         ptrdiff_t stride);
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void ff_get_pixels_16_rvi(int16_t *block, const uint8_t *pixels,
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                          ptrdiff_t stride);
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void ff_get_pixels_8_rvv(int16_t *block, const uint8_t *pixels,
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                         ptrdiff_t stride);
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void ff_get_pixels_unaligned_8_rvv(int16_t *block, const uint8_t *pixels,
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                                   ptrdiff_t stride);
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void ff_diff_pixels_rvv(int16_t *block, const uint8_t *s1,
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                        const uint8_t *s2, ptrdiff_t stride);
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void ff_diff_pixels_unaligned_rvv(int16_t *block, const uint8_t *s1,
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                                  const uint8_t *s2, ptrdiff_t stride);
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av_cold void ff_pixblockdsp_init_riscv(PixblockDSPContext *c,
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                                       AVCodecContext *avctx,
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                                       unsigned high_bit_depth)
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{
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#if HAVE_RV
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    int cpu_flags = av_get_cpu_flags();
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    if (cpu_flags & AV_CPU_FLAG_RVI) {
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        if (high_bit_depth)
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            c->get_pixels = ff_get_pixels_16_rvi;
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        else
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            c->get_pixels = ff_get_pixels_8_rvi;
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    }
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    if (cpu_flags & AV_CPU_FLAG_RV_MISALIGNED) {
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        if (high_bit_depth)
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            c->get_pixels_unaligned = ff_get_pixels_16_rvi;
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        else
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            c->get_pixels_unaligned = ff_get_pixels_8_rvi;
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    }
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#if HAVE_RVV
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    if ((cpu_flags & AV_CPU_FLAG_RVV_I32) && ff_rv_vlen_least(128)) {
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        c->diff_pixels = ff_diff_pixels_unaligned_rvv;
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        c->diff_pixels_unaligned = ff_diff_pixels_unaligned_rvv;
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    }
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    if ((cpu_flags & AV_CPU_FLAG_RVV_I64) && ff_get_rv_vlenb() >= 16) {
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        if (!high_bit_depth) {
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            c->get_pixels = ff_get_pixels_8_rvv;
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            c->get_pixels_unaligned = ff_get_pixels_unaligned_8_rvv;
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        }
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        c->diff_pixels = ff_diff_pixels_rvv;
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    }
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#endif
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#endif
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}
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