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1a9c345ee8
Adapted from the corresponding me_cmp code. Only the width 16 function has been adapted, because it seems that the width 8 function actually reads 16 bytes per line. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
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* Copyright (c) 2015 Parag Salasakar (Parag.Salasakar@imgtec.com)
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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 <stddef.h>
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#include <stdint.h>
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#include "generic_macros_msa.h"
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#include "pixelutils.h"
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int ff_pixelutils_sad16_msa(const uint8_t *src, ptrdiff_t src_stride,
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const uint8_t *ref, ptrdiff_t ref_stride)
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{
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int32_t ht_cnt = 16/4;
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v16u8 src0, src1, ref0, ref1;
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v8u16 sad = { 0 };
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for (; ht_cnt--; ) {
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LD_UB2(src, src_stride, src0, src1);
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src += (2 * src_stride);
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LD_UB2(ref, ref_stride, ref0, ref1);
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ref += (2 * ref_stride);
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sad += SAD_UB2_UH(src0, src1, ref0, ref1);
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LD_UB2(src, src_stride, src0, src1);
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src += (2 * src_stride);
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LD_UB2(ref, ref_stride, ref0, ref1);
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ref += (2 * ref_stride);
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sad += SAD_UB2_UH(src0, src1, ref0, ref1);
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}
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return (HADD_UH_U32(sad));
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}
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