git.sesse.net Git - ffmpeg/blob - libavcodec/mips/pixblockdsp_mmi.c

   1 /*
   2  * Loongson SIMD optimized pixblockdsp
   3  *
   4  * Copyright (c) 2015 Loongson Technology Corporation Limited
   5  * Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
   6  *
   7  * This file is part of FFmpeg.
   8  *
   9  * FFmpeg is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * FFmpeg is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with FFmpeg; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #include "pixblockdsp_mips.h"
  25 #include "libavutil/mips/asmdefs.h"
  26 #include "libavutil/mips/mmiutils.h"
  27
  28 void ff_get_pixels_8_mmi(int16_t *av_restrict block, const uint8_t *pixels,
  29                          ptrdiff_t stride)
  30 {
  31     double ftmp[7];
  32     DECLARE_VAR_ALL64;
  33     DECLARE_VAR_ADDRT;
  34
  35     __asm__ volatile (
  36         "xor        %[ftmp0],   %[ftmp0],       %[ftmp0]                \n\t"
  37
  38         MMI_LDC1(%[ftmp1], %[pixels], 0x00)
  39         MMI_LDXC1(%[ftmp2], %[pixels], %[stride], 0x00)
  40         "punpcklbh  %[ftmp3],   %[ftmp1],       %[ftmp0]                \n\t"
  41         "punpckhbh  %[ftmp4],   %[ftmp1],       %[ftmp0]                \n\t"
  42         "punpcklbh  %[ftmp5],   %[ftmp2],       %[ftmp0]                \n\t"
  43         "punpckhbh  %[ftmp6],   %[ftmp2],       %[ftmp0]                \n\t"
  44         MMI_SDC1(%[ftmp3], %[block], 0x00)
  45         MMI_SDC1(%[ftmp4], %[block], 0x08)
  46         MMI_SDC1(%[ftmp5], %[block], 0x10)
  47         MMI_SDC1(%[ftmp6], %[block], 0x18)
  48         PTR_ADDU   "%[pixels],  %[pixels],      %[stride_x2]            \n\t"
  49
  50         MMI_LDC1(%[ftmp1], %[pixels], 0x00)
  51         MMI_LDXC1(%[ftmp2], %[pixels], %[stride], 0x00)
  52         "punpcklbh  %[ftmp3],   %[ftmp1],       %[ftmp0]                \n\t"
  53         "punpckhbh  %[ftmp4],   %[ftmp1],       %[ftmp0]                \n\t"
  54         "punpcklbh  %[ftmp5],   %[ftmp2],       %[ftmp0]                \n\t"
  55         "punpckhbh  %[ftmp6],   %[ftmp2],       %[ftmp0]                \n\t"
  56         MMI_SDC1(%[ftmp3], %[block], 0x20)
  57         MMI_SDC1(%[ftmp4], %[block], 0x28)
  58         MMI_SDC1(%[ftmp5], %[block], 0x30)
  59         MMI_SDC1(%[ftmp6], %[block], 0x38)
  60         PTR_ADDU   "%[pixels],  %[pixels],      %[stride_x2]            \n\t"
  61
  62         MMI_LDC1(%[ftmp1], %[pixels], 0x00)
  63         MMI_LDXC1(%[ftmp2], %[pixels], %[stride], 0x00)
  64         "punpcklbh  %[ftmp3],   %[ftmp1],       %[ftmp0]                \n\t"
  65         "punpckhbh  %[ftmp4],   %[ftmp1],       %[ftmp0]                \n\t"
  66         "punpcklbh  %[ftmp5],   %[ftmp2],       %[ftmp0]                \n\t"
  67         "punpckhbh  %[ftmp6],   %[ftmp2],       %[ftmp0]                \n\t"
  68         MMI_SDC1(%[ftmp3], %[block], 0x40)
  69         MMI_SDC1(%[ftmp4], %[block], 0x48)
  70         MMI_SDC1(%[ftmp5], %[block], 0x50)
  71         MMI_SDC1(%[ftmp6], %[block], 0x58)
  72         PTR_ADDU   "%[pixels],  %[pixels],      %[stride_x2]            \n\t"
  73
  74         MMI_LDC1(%[ftmp1], %[pixels], 0x00)
  75         MMI_LDXC1(%[ftmp2], %[pixels], %[stride], 0x00)
  76         "punpcklbh  %[ftmp3],   %[ftmp1],       %[ftmp0]                \n\t"
  77         "punpckhbh  %[ftmp4],   %[ftmp1],       %[ftmp0]                \n\t"
  78         "punpcklbh  %[ftmp5],   %[ftmp2],       %[ftmp0]                \n\t"
  79         "punpckhbh  %[ftmp6],   %[ftmp2],       %[ftmp0]                \n\t"
  80         MMI_SDC1(%[ftmp3], %[block], 0x60)
  81         MMI_SDC1(%[ftmp4], %[block], 0x68)
  82         MMI_SDC1(%[ftmp5], %[block], 0x70)
  83         MMI_SDC1(%[ftmp6], %[block], 0x78)
  84         : [ftmp0]"=&f"(ftmp[0]),            [ftmp1]"=&f"(ftmp[1]),
  85           [ftmp2]"=&f"(ftmp[2]),            [ftmp3]"=&f"(ftmp[3]),
  86           [ftmp4]"=&f"(ftmp[4]),            [ftmp5]"=&f"(ftmp[5]),
  87           [ftmp6]"=&f"(ftmp[6]),
  88           RESTRICT_ASM_ALL64
  89           RESTRICT_ASM_ADDRT
  90           [pixels]"+&r"(pixels)
  91         : [block]"r"((mips_reg)block),      [stride]"r"((mips_reg)stride),
  92           [stride_x2]"r"((mips_reg)(stride<<1))
  93         : "memory"
  94     );
  95 }
  96
  97 void ff_diff_pixels_mmi(int16_t *av_restrict block, const uint8_t *src1,
  98         const uint8_t *src2, ptrdiff_t stride)
  99 {
 100     double ftmp[5];
 101     mips_reg tmp[1];
 102     DECLARE_VAR_ALL64;
 103
 104     __asm__ volatile (
 105         "li         %[tmp0],    0x08                                    \n\t"
 106         "xor        %[ftmp4],   %[ftmp4],       %[ftmp4]                \n\t"
 107         "1:                                                             \n\t"
 108         MMI_LDC1(%[ftmp0], %[src1], 0x00)
 109         "or         %[ftmp1],   %[ftmp0],       %[ftmp0]                \n\t"
 110         MMI_LDC1(%[ftmp2], %[src2], 0x00)
 111         "or         %[ftmp3],   %[ftmp2],       %[ftmp2]                \n\t"
 112         "punpcklbh  %[ftmp0],   %[ftmp0],       %[ftmp4]                \n\t"
 113         "punpckhbh  %[ftmp1],   %[ftmp1],       %[ftmp4]                \n\t"
 114         "punpcklbh  %[ftmp2],   %[ftmp2],       %[ftmp4]                \n\t"
 115         "punpckhbh  %[ftmp3],   %[ftmp3],       %[ftmp4]                \n\t"
 116         "psubh      %[ftmp0],   %[ftmp0],       %[ftmp2]                \n\t"
 117         "psubh      %[ftmp1],   %[ftmp1],       %[ftmp3]                \n\t"
 118         MMI_SDC1(%[ftmp0], %[block], 0x00)
 119         MMI_SDC1(%[ftmp1], %[block], 0x08)
 120         PTR_ADDI   "%[tmp0],    %[tmp0], -0x01                          \n\t"
 121         PTR_ADDIU  "%[block],   %[block], 0x10                          \n\t"
 122         PTR_ADDU   "%[src1],    %[src1],        %[stride]               \n\t"
 123         PTR_ADDU   "%[src2],    %[src2],        %[stride]               \n\t"
 124         "bgtz       %[tmp0],    1b                                      \n\t"
 125         : [ftmp0]"=&f"(ftmp[0]),            [ftmp1]"=&f"(ftmp[1]),
 126           [ftmp2]"=&f"(ftmp[2]),            [ftmp3]"=&f"(ftmp[3]),
 127           [ftmp4]"=&f"(ftmp[4]),
 128           [tmp0]"=&r"(tmp[0]),
 129           RESTRICT_ASM_ALL64
 130           [block]"+&r"(block),              [src1]"+&r"(src1),
 131           [src2]"+&r"(src2)
 132         : [stride]"r"((mips_reg)stride)
 133         : "memory"
 134     );
 135 }