mirror of https://git.ffmpeg.org/ffmpeg.git
80 lines
3.0 KiB
C
80 lines
3.0 KiB
C
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/*
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* Loongson SIMD optimized pixblockdsp
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*
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* Copyright (c) 2015 Loongson Technology Corporation Limited
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* Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@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 "pixblockdsp_mips.h"
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void ff_get_pixels_8_mmi(int16_t *av_restrict block, const uint8_t *pixels,
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ptrdiff_t line_size)
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{
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__asm__ volatile (
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"move $8, $0 \n\t"
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"xor $f0, $f0, $f0 \n\t"
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"1: \n\t"
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"gsldlc1 $f2, 7(%1) \n\t"
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"gsldrc1 $f2, 0(%1) \n\t"
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"punpcklbh $f4, $f2, $f0 \n\t"
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"punpckhbh $f6, $f2, $f0 \n\t"
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"gssdxc1 $f4, 0(%0, $8) \n\t"
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"gssdxc1 $f6, 8(%0, $8) \n\t"
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"daddiu $8, $8, 16 \n\t"
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"daddu %1, %1, %2 \n\t"
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"daddi %3, %3, -1 \n\t"
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"bnez %3, 1b \n\t"
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::"r"((uint8_t *)block),"r"(pixels),"r"(line_size),"r"(8)
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: "$8","memory"
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);
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}
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void ff_diff_pixels_mmi(int16_t *av_restrict block, const uint8_t *src1,
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const uint8_t *src2, int stride)
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{
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__asm__ volatile (
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"dli $2, 8 \n\t"
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"xor $f14, $f14, $f14 \n\t"
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"1: \n\t"
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"gsldlc1 $f0, 7(%1) \n\t"
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"gsldrc1 $f0, 0(%1) \n\t"
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"or $f2, $f0, $f0 \n\t"
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"gsldlc1 $f4, 7(%2) \n\t"
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"gsldrc1 $f4, 0(%2) \n\t"
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"or $f6, $f4, $f4 \n\t"
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"punpcklbh $f0, $f0, $f14 \n\t"
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"punpckhbh $f2, $f2, $f14 \n\t"
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"punpcklbh $f4, $f4, $f14 \n\t"
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"punpckhbh $f6, $f6, $f14 \n\t"
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"psubh $f0, $f0, $f4 \n\t"
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"psubh $f2, $f2, $f6 \n\t"
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"gssdlc1 $f0, 7(%0) \n\t"
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"gssdrc1 $f0, 0(%0) \n\t"
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"gssdlc1 $f2, 15(%0) \n\t"
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"gssdrc1 $f2, 8(%0) \n\t"
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"daddi %0, %0, 16 \n\t"
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"daddu %1, %1, %3 \n\t"
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"daddu %2, %2, %3 \n\t"
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"daddi $2, $2, -1 \n\t"
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"bgtz $2, 1b \n\t"
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::"r"(block),"r"(src1),"r"(src2),"r"(stride)
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: "$2","memory"
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);
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}
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