mirror of https://git.ffmpeg.org/ffmpeg.git
99 lines
4.9 KiB
C
99 lines
4.9 KiB
C
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/*
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* Loongson SIMD optimized mpegvideo
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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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* Zhang Shuangshuang <zhangshuangshuang@ict.ac.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 "mpegvideo_mips.h"
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#include "libavutil/mips/mmiutils.h"
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void ff_denoise_dct_mmi(MpegEncContext *s, int16_t *block)
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{
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const int intra = s->mb_intra;
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int *sum = s->dct_error_sum[intra];
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uint16_t *offset = s->dct_offset[intra];
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double ftmp[8];
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mips_reg addr[1];
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DECLARE_VAR_ALL64;
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s->dct_count[intra]++;
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__asm__ volatile(
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"pxor %[ftmp0], %[ftmp0], %[ftmp0] \n\t"
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"1: \n\t"
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MMI_LDC1(%[ftmp1], %[block], 0x00)
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"pxor %[ftmp2], %[ftmp2], %[ftmp2] \n\t"
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MMI_LDC1(%[ftmp3], %[block], 0x08)
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"pxor %[ftmp4], %[ftmp4], %[ftmp4] \n\t"
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"pcmpgth %[ftmp2], %[ftmp2], %[ftmp1] \n\t"
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"pcmpgth %[ftmp4], %[ftmp4], %[ftmp3] \n\t"
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"pxor %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
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"pxor %[ftmp3], %[ftmp3], %[ftmp4] \n\t"
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"psubh %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
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"psubh %[ftmp3], %[ftmp3], %[ftmp4] \n\t"
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MMI_LDC1(%[ftmp6], %[offset], 0x00)
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"mov.d %[ftmp5], %[ftmp1] \n\t"
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"psubush %[ftmp1], %[ftmp1], %[ftmp6] \n\t"
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MMI_LDC1(%[ftmp6], %[offset], 0x08)
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"mov.d %[ftmp7], %[ftmp3] \n\t"
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"psubush %[ftmp3], %[ftmp3], %[ftmp6] \n\t"
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"pxor %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
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"pxor %[ftmp3], %[ftmp3], %[ftmp4] \n\t"
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"psubh %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
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"psubh %[ftmp3], %[ftmp3], %[ftmp4] \n\t"
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MMI_SDC1(%[ftmp1], %[block], 0x00)
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MMI_SDC1(%[ftmp3], %[block], 0x08)
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"mov.d %[ftmp1], %[ftmp5] \n\t"
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"mov.d %[ftmp3], %[ftmp7] \n\t"
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"punpcklhw %[ftmp5], %[ftmp5], %[ftmp0] \n\t"
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"punpckhhw %[ftmp1], %[ftmp1], %[ftmp0] \n\t"
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"punpcklhw %[ftmp7], %[ftmp7], %[ftmp0] \n\t"
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"punpckhhw %[ftmp3], %[ftmp3], %[ftmp0] \n\t"
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MMI_LDC1(%[ftmp2], %[sum], 0x00)
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"paddw %[ftmp5], %[ftmp5], %[ftmp2] \n\t"
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MMI_LDC1(%[ftmp2], %[sum], 0x08)
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"paddw %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
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MMI_LDC1(%[ftmp2], %[sum], 0x10)
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"paddw %[ftmp7], %[ftmp7], %[ftmp2] \n\t"
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MMI_LDC1(%[ftmp2], %[sum], 0x18)
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"paddw %[ftmp3], %[ftmp3], %[ftmp2] \n\t"
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MMI_SDC1(%[ftmp5], %[sum], 0x00)
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MMI_SDC1(%[ftmp1], %[sum], 0x08)
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MMI_SDC1(%[ftmp7], %[sum], 0x10)
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MMI_SDC1(%[ftmp3], %[sum], 0x18)
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PTR_ADDIU "%[block], %[block], 0x10 \n\t"
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PTR_ADDIU "%[sum], %[sum], 0x20 \n\t"
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PTR_SUBU "%[addr0], %[block1], %[block] \n\t"
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PTR_ADDIU "%[offset], %[offset], 0x10 \n\t"
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"bgtz %[addr0], 1b \n\t"
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: [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
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[ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]),
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[ftmp4]"=&f"(ftmp[4]), [ftmp5]"=&f"(ftmp[5]),
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[ftmp6]"=&f"(ftmp[6]), [ftmp7]"=&f"(ftmp[7]),
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RESTRICT_ASM_ALL64
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[addr0]"=&r"(addr[0]),
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[block]"+&r"(block), [sum]"+&r"(sum),
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[offset]"+&r"(offset)
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: [block1]"r"(block+64)
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: "memory"
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);
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}
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