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98 lines
4.9 KiB
98 lines
4.9 KiB
/* |
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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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