mirror of
https://github.com/FFmpeg/FFmpeg.git
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58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
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/*
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* Loongson LSX optimized swscale
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*
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* Copyright (c) 2023 Loongson Technology Corporation Limited
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* Contributed by Lu Wang <wanglu@loongson.cn>
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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 "swscale_loongarch.h"
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void ff_hscale_16_to_15_lsx(SwsContext *c, int16_t *_dst, int dstW,
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const uint8_t *_src, const int16_t *filter,
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const int32_t *filterPos, int filterSize)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat);
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int sh = desc->comp[0].depth - 1;
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if (sh < 15) {
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sh = isAnyRGB(c->srcFormat) || c->srcFormat==AV_PIX_FMT_PAL8 ? 13 :
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(desc->comp[0].depth - 1);
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} else if (desc->flags && AV_PIX_FMT_FLAG_FLOAT) {
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sh = 15;
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}
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ff_hscale_16_to_15_sub_lsx(c, _dst, dstW, _src, filter, filterPos, filterSize, sh);
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}
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void ff_hscale_16_to_19_lsx(SwsContext *c, int16_t *_dst, int dstW,
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const uint8_t *_src, const int16_t *filter,
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const int32_t *filterPos, int filterSize)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat);
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int bits = desc->comp[0].depth - 1;
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int sh = bits - 4;
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if ((isAnyRGB(c->srcFormat) || c->srcFormat==AV_PIX_FMT_PAL8) && desc->comp[0].depth<16) {
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sh = 9;
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} else if (desc->flags & AV_PIX_FMT_FLAG_FLOAT) { /* float input are process like uint 16bpc */
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sh = 16 - 1 - 4;
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}
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ff_hscale_16_to_19_sub_lsx(c, _dst, dstW, _src, filter, filterPos, filterSize, sh);
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}
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