kc3-lang/libjpeg-turbo/simd/loongson/jccolext-mmi.c

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• Hash : e2442e07
  Author :
  Date : 2019-02-01T00:56:02
  

  MMI: Fix unaligned comp. perf. for 32-bit PFs also
  
  (Oversight from 1c2d3cfaaf7324d9091ba3cc4e900f60a16fe1aa)
  

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• simd/loongson/jccolext-mmi.c

• /*
   * Loongson MMI optimizations for libjpeg-turbo
   *
   * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
   * Copyright (C) 2014-2015, 2019, D. R. Commander.  All Rights Reserved.
   * Copyright (C) 2016-2018, Loongson Technology Corporation Limited, BeiJing.
   *                          All Rights Reserved.
   * Authors:  ZhuChen     <zhuchen@loongson.cn>
   *           SunZhangzhi <sunzhangzhi-cq@loongson.cn>
   *           CaiWanwei   <caiwanwei@loongson.cn>
   *           ZhangLixia  <zhanglixia-hf@loongson.cn>
   *
   * Based on the x86 SIMD extension for IJG JPEG library
   * Copyright (C) 1999-2006, MIYASAKA Masaru.
   *
   * This software is provided 'as-is', without any express or implied
   * warranty.  In no event will the authors be held liable for any damages
   * arising from the use of this software.
   *
   * Permission is granted to anyone to use this software for any purpose,
   * including commercial applications, and to alter it and redistribute it
   * freely, subject to the following restrictions:
   *
   * 1. The origin of this software must not be misrepresented; you must not
   *    claim that you wrote the original software. If you use this software
   *    in a product, an acknowledgment in the product documentation would be
   *    appreciated but is not required.
   * 2. Altered source versions must be plainly marked as such, and must not be
   *    misrepresented as being the original software.
   * 3. This notice may not be removed or altered from any source distribution.
   */
  
  /* This file is included by jccolor-mmi.c */
  
  
  #if RGB_RED == 0
  #define mmA  mm0
  #define mmB  mm1
  #elif RGB_GREEN == 0
  #define mmA  mm2
  #define mmB  mm3
  #elif RGB_BLUE == 0
  #define mmA  mm4
  #define mmB  mm5
  #else
  #define mmA  mm6
  #define mmB  mm7
  #endif
  
  #if RGB_RED == 1
  #define mmC  mm0
  #define mmD  mm1
  #elif RGB_GREEN == 1
  #define mmC  mm2
  #define mmD  mm3
  #elif RGB_BLUE == 1
  #define mmC  mm4
  #define mmD  mm5
  #else
  #define mmC  mm6
  #define mmD  mm7
  #endif
  
  #if RGB_RED == 2
  #define mmE  mm0
  #define mmF  mm1
  #elif RGB_GREEN == 2
  #define mmE  mm2
  #define mmF  mm3
  #elif RGB_BLUE == 2
  #define mmE  mm4
  #define mmF  mm5
  #else
  #define mmE  mm6
  #define mmF  mm7
  #endif
  
  #if RGB_RED == 3
  #define mmG  mm0
  #define mmH  mm1
  #elif RGB_GREEN == 3
  #define mmG  mm2
  #define mmH  mm3
  #elif RGB_BLUE == 3
  #define mmG  mm4
  #define mmH  mm5
  #else
  #define mmG  mm6
  #define mmH  mm7
  #endif
  
  
  void jsimd_rgb_ycc_convert_mmi(JDIMENSION image_width, JSAMPARRAY input_buf,
                                 JSAMPIMAGE output_buf, JDIMENSION output_row,
                                 int num_rows)
  {
    JSAMPROW inptr, outptr0, outptr1, outptr2;
    int num_cols, col;
    __m64 mm0, mm1, mm2, mm3, mm4, mm5, mm6, mm7;
    __m64 wk[7];
    __m64 Y_BG, Cb_RG, Cr_BG;
  
    while (--num_rows >= 0) {
      inptr = *input_buf++;
      outptr0 = output_buf[0][output_row];
      outptr1 = output_buf[1][output_row];
      outptr2 = output_buf[2][output_row];
      output_row++;
  
      for (num_cols = image_width; num_cols > 0; num_cols -= 8,
           outptr0 += 8, outptr1 += 8, outptr2 += 8) {
  
  #if RGB_PIXELSIZE == 3
  
        if (num_cols < 8) {
          col = num_cols * 3;
          asm(".set noreorder\r\n"
  
              "li     $8, 1\r\n"
              "move   $9, %3\r\n"
              "and    $10, $9, $8\r\n"
              "beqz   $10, 1f\r\n"
              "nop    \r\n"
              "subu   $9, $9, 1\r\n"
              "xor    $12, $12, $12\r\n"
              "move   $13, %5\r\n"
              "dadd   $13, $13, $9\r\n"
              "lbu    $12, 0($13)\r\n"
  
              "1:     \r\n"
              "li     $8, 2\r\n"
              "and    $10, $9, $8\r\n"
              "beqz   $10, 2f\r\n"
              "nop    \r\n"
              "subu   $9, $9, 2\r\n"
              "xor    $11, $11, $11\r\n"
              "move   $13, %5\r\n"
              "dadd   $13, $13, $9\r\n"
              "lhu    $11, 0($13)\r\n"
              "sll    $12, $12, 16\r\n"
              "or     $12, $12, $11\r\n"
  
              "2:     \r\n"
              "dmtc1  $12, %0\r\n"
              "li     $8, 4\r\n"
              "and    $10, $9, $8\r\n"
              "beqz   $10, 3f\r\n"
              "nop    \r\n"
              "subu   $9, $9, 4\r\n"
              "move   $13, %5\r\n"
              "dadd   $13, $13, $9\r\n"
              "lwu    $14, 0($13)\r\n"
              "dmtc1  $14, %1\r\n"
              "dsll32 $12, $12, 0\r\n"
              "or     $12, $12, $14\r\n"
              "dmtc1  $12, %0\r\n"
  
              "3:     \r\n"
              "li     $8, 8\r\n"
              "and    $10, $9, $8\r\n"
              "beqz   $10, 4f\r\n"
              "nop    \r\n"
              "mov.s  %1, %0\r\n"
              "ldc1   %0, 0(%5)\r\n"
              "li     $9, 8\r\n"
              "j      5f\r\n"
              "nop    \r\n"
  
              "4:     \r\n"
              "li     $8, 16\r\n"
              "and    $10, $9, $8\r\n"
              "beqz   $10, 5f\r\n"
              "nop    \r\n"
              "mov.s  %2, %0\r\n"
              "ldc1   %0, 0(%5)\r\n"
              "ldc1   %1, 8(%5)\r\n"
  
              "5:     \r\n"
              "nop    \r\n"
              ".set reorder\r\n"
  
              : "=f" (mmA), "=f" (mmG), "=f" (mmF)
              : "r" (col), "r" (num_rows), "r" (inptr)
              : "$f0", "$f2", "$f4", "$8", "$9", "$10", "$11", "$12", "$13",
                "$14", "memory"
             );
        } else {
          if (!(((long)inptr) & 7)) {
            mmA = _mm_load_si64((__m64 *)&inptr[0]);
            mmG = _mm_load_si64((__m64 *)&inptr[8]);
            mmF = _mm_load_si64((__m64 *)&inptr[16]);
          } else {
            mmA = _mm_loadu_si64((__m64 *)&inptr[0]);
            mmG = _mm_loadu_si64((__m64 *)&inptr[8]);
            mmF = _mm_loadu_si64((__m64 *)&inptr[16]);
          }
          inptr += RGB_PIXELSIZE * 8;
        }
        mmD = mmA;
        mmA = _mm_slli_si64(mmA, 4 * BYTE_BIT);
        mmD = _mm_srli_si64(mmD, 4 * BYTE_BIT);
  
        mmA = _mm_unpackhi_pi8(mmA, mmG);
        mmG = _mm_slli_si64(mmG, 4 * BYTE_BIT);
  
        mmD = _mm_unpacklo_pi8(mmD, mmF);
        mmG = _mm_unpackhi_pi8(mmG, mmF);
  
        mmE = mmA;
        mmA = _mm_slli_si64(mmA, 4 * BYTE_BIT);
        mmE = _mm_srli_si64(mmE, 4 * BYTE_BIT);
  
        mmA = _mm_unpackhi_pi8(mmA, mmD);
        mmD = _mm_slli_si64(mmD, 4 * BYTE_BIT);
  
        mmE = _mm_unpacklo_pi8(mmE, mmG);
        mmD = _mm_unpackhi_pi8(mmD, mmG);
        mmC = mmA;
        mmA = _mm_loadlo_pi8_f(mmA);
        mmC = _mm_loadhi_pi8_f(mmC);
  
        mmB = mmE;
        mmE = _mm_loadlo_pi8_f(mmE);
        mmB = _mm_loadhi_pi8_f(mmB);
  
        mmF = mmD;
        mmD = _mm_loadlo_pi8_f(mmD);
        mmF = _mm_loadhi_pi8_f(mmF);
  
  #else  /* RGB_PIXELSIZE == 4 */
  
        if (num_cols < 8) {
          col = num_cols;
          asm(".set noreorder\r\n"
  
              "li     $8, 1\r\n"
              "move   $9, %4\r\n"
              "and    $10, $9, $8\r\n"
              "beqz   $10, 1f\r\n"
              "nop    \r\n"
              "subu   $9, $9, 1\r\n"
              "dsll   $11, $9, 2\r\n"
              "move   $13, %5\r\n"
              "daddu  $13, $13, $11\r\n"
              "lwc1   %0, 0($13)\r\n"
  
              "1:     \r\n"
              "li     $8, 2\r\n"
              "and    $10, $9, $8\r\n"
              "beqz   $10, 2f\r\n"
              "nop    \r\n"
              "subu   $9, $9, 2\r\n"
              "dsll   $11, $9, 2\r\n"
              "move   $13, %5\r\n"
              "daddu  $13, $13, $11\r\n"
              "mov.s  %1, %0\r\n"
              "ldc1   %0, 0($13)\r\n"
  
              "2:     \r\n"
              "li     $8, 4\r\n"
              "and    $10, $9, $8\r\n"
              "beqz   $10, 3f\r\n"
              "nop    \r\n"
              "mov.s  %2, %0\r\n"
              "mov.s  %3, %1\r\n"
              "ldc1   %0, 0(%5)\r\n"
              "ldc1   %1, 8(%5)\r\n"
  
              "3:     \r\n"
              "nop    \r\n"
              ".set reorder\r\n"
  
              : "=f" (mmA), "=f" (mmF), "=f" (mmD), "=f" (mmC)
              : "r" (col), "r" (inptr)
              : "$f0", "$f2", "$8", "$9", "$10", "$11", "$13", "memory"
             );
        } else {
          if (!(((long)inptr) & 7)) {
            mmA = _mm_load_si64((__m64 *)&inptr[0]);
            mmF = _mm_load_si64((__m64 *)&inptr[8]);
            mmD = _mm_load_si64((__m64 *)&inptr[16]);
            mmC = _mm_load_si64((__m64 *)&inptr[24]);
          } else {
            mmA = _mm_loadu_si64((__m64 *)&inptr[0]);
            mmF = _mm_loadu_si64((__m64 *)&inptr[8]);
            mmD = _mm_loadu_si64((__m64 *)&inptr[16]);
            mmC = _mm_loadu_si64((__m64 *)&inptr[24]);
          }
          inptr += RGB_PIXELSIZE * 8;
        }
        mmB = mmA;
        mmA = _mm_unpacklo_pi8(mmA, mmF);
        mmB = _mm_unpackhi_pi8(mmB, mmF);
  
        mmG = mmD;
        mmD = _mm_unpacklo_pi8(mmD, mmC);
        mmG = _mm_unpackhi_pi8(mmG, mmC);
  
        mmE = mmA;
        mmA = _mm_unpacklo_pi16(mmA, mmD);
        mmE = _mm_unpackhi_pi16(mmE, mmD);
  
        mmH = mmB;
        mmB = _mm_unpacklo_pi16(mmB, mmG);
        mmH = _mm_unpackhi_pi16(mmH, mmG);
  
        mmC = mmA;
        mmA = _mm_loadlo_pi8_f(mmA);
        mmC = _mm_loadhi_pi8_f(mmC);
  
        mmD = mmB;
        mmB = _mm_loadlo_pi8_f(mmB);
        mmD = _mm_loadhi_pi8_f(mmD);
  
        mmG = mmE;
        mmE = _mm_loadlo_pi8_f(mmE);
        mmG = _mm_loadhi_pi8_f(mmG);
  
        mmF = mmH;
        mmF = _mm_unpacklo_pi8(mmF, mmH);
        mmH = _mm_unpackhi_pi8(mmH, mmH);
        mmF = _mm_srli_pi16(mmF, BYTE_BIT);
        mmH = _mm_srli_pi16(mmH, BYTE_BIT);
  
  #endif
  
        wk[0] = mm0;
        wk[1] = mm1;
        wk[2] = mm4;
        wk[3] = mm5;
  
        mm6 = mm1;
        mm1 = _mm_unpacklo_pi16(mm1, mm3);
        mm6 = _mm_unpackhi_pi16(mm6, mm3);
        mm7 = mm1;
        mm4 = mm6;
        mm1 = _mm_madd_pi16(mm1, PW_F0299_F0337);
        mm6 = _mm_madd_pi16(mm6, PW_F0299_F0337);
        mm7 = _mm_madd_pi16(mm7, PW_MF016_MF033);
        mm4 = _mm_madd_pi16(mm4, PW_MF016_MF033);
  
        wk[4] = mm1;
        wk[5] = mm6;
  
        mm1 = _mm_loadlo_pi16_f(mm5);
        mm6 = _mm_loadhi_pi16_f(mm5);
        mm1 = _mm_srli_pi32(mm1, 1);
        mm6 = _mm_srli_pi32(mm6, 1);
  
        mm5 = PD_ONEHALFM1_CJ;
        mm7 = _mm_add_pi32(mm7, mm1);
        mm4 = _mm_add_pi32(mm4, mm6);
        mm7 = _mm_add_pi32(mm7, mm5);
        mm4 = _mm_add_pi32(mm4, mm5);
        mm7 = _mm_srli_pi32(mm7, SCALEBITS);
        mm4 = _mm_srli_pi32(mm4, SCALEBITS);
        mm7 = _mm_packs_pi32(mm7, mm4);
  
        mm1 = wk[2];
        mm6 = mm0;
        mm0 = _mm_unpacklo_pi16(mm0, mm2);
        mm6 = _mm_unpackhi_pi16(mm6, mm2);
        mm5 = mm0;
        mm4 = mm6;
        mm0 = _mm_madd_pi16(mm0, PW_F0299_F0337);
        mm6 = _mm_madd_pi16(mm6, PW_F0299_F0337);
        mm5 = _mm_madd_pi16(mm5, PW_MF016_MF033);
        mm4 = _mm_madd_pi16(mm4, PW_MF016_MF033);
  
        wk[6] = mm0;
        wk[7] = mm6;
        mm0 = _mm_loadlo_pi16_f(mm1);
        mm6 = _mm_loadhi_pi16_f(mm1);
        mm0 = _mm_srli_pi32(mm0, 1);
        mm6 = _mm_srli_pi32(mm6, 1);
  
        mm1 = PD_ONEHALFM1_CJ;
        mm5 = _mm_add_pi32(mm5, mm0);
        mm4 = _mm_add_pi32(mm4, mm6);
        mm5 = _mm_add_pi32(mm5, mm1);
        mm4 = _mm_add_pi32(mm4, mm1);
        mm5 = _mm_srli_pi32(mm5, SCALEBITS);
        mm4 = _mm_srli_pi32(mm4, SCALEBITS);
        mm5 = _mm_packs_pi32(mm5, mm4);
  
        mm7 = _mm_slli_pi16(mm7, BYTE_BIT);
        mm5  = _mm_or_si64(mm5, mm7);
        Cb_RG = mm5;
  
        mm0 = wk[3];
        mm6 = wk[2];
        mm1 = wk[1];
  
        mm4 = mm0;
        mm0 = _mm_unpacklo_pi16(mm0, mm3);
        mm4 = _mm_unpackhi_pi16(mm4, mm3);
        mm7 = mm0;
        mm5 = mm4;
        mm0 = _mm_madd_pi16(mm0, PW_F0114_F0250);
        mm4 = _mm_madd_pi16(mm4, PW_F0114_F0250);
        mm7 = _mm_madd_pi16(mm7, PW_MF008_MF041);
        mm5 = _mm_madd_pi16(mm5, PW_MF008_MF041);
  
        mm3 = PD_ONEHALF;
        mm0 = _mm_add_pi32(mm0, wk[4]);
        mm4 = _mm_add_pi32(mm4, wk[5]);
        mm0 = _mm_add_pi32(mm0, mm3);
        mm4 = _mm_add_pi32(mm4, mm3);
        mm0 = _mm_srli_pi32(mm0, SCALEBITS);
        mm4 = _mm_srli_pi32(mm4, SCALEBITS);
        mm0 = _mm_packs_pi32(mm0, mm4);
  
        mm3 = _mm_loadlo_pi16_f(mm1);
        mm4 = _mm_loadhi_pi16_f(mm1);
        mm3 = _mm_srli_pi32(mm3, 1);
        mm4 = _mm_srli_pi32(mm4, 1);
  
        mm1 = PD_ONEHALFM1_CJ;
        mm7 = _mm_add_pi32(mm7, mm3);
        mm5 = _mm_add_pi32(mm5, mm4);
        mm7 = _mm_add_pi32(mm7, mm1);
        mm5 = _mm_add_pi32(mm5, mm1);
        mm7 = _mm_srli_pi32(mm7, SCALEBITS);
        mm5 = _mm_srli_pi32(mm5, SCALEBITS);
        mm7 = _mm_packs_pi32(mm7, mm5);
  
        mm3 = wk[0];
        mm4 = mm6;
        mm6 = _mm_unpacklo_pi16(mm6, mm2);
        mm4 = _mm_unpackhi_pi16(mm4, mm2);
        mm1 = mm6;
        mm5 = mm4;
        mm6 = _mm_madd_pi16(mm6, PW_F0114_F0250);
        mm4 = _mm_madd_pi16(mm4, PW_F0114_F0250);
        mm1 = _mm_madd_pi16(mm1, PW_MF008_MF041);
        mm5 = _mm_madd_pi16(mm5, PW_MF008_MF041);
  
        mm2 = PD_ONEHALF;
        mm6 = _mm_add_pi32(mm6, wk[6]);
        mm4 = _mm_add_pi32(mm4, wk[7]);
        mm6 = _mm_add_pi32(mm6, mm2);
        mm4 = _mm_add_pi32(mm4, mm2);
        mm6 = _mm_srli_pi32(mm6, SCALEBITS);
        mm4 = _mm_srli_pi32(mm4, SCALEBITS);
        mm6 = _mm_packs_pi32(mm6, mm4);
  
        mm0 = _mm_slli_pi16(mm0, BYTE_BIT);
        mm6 = _mm_or_si64(mm6, mm0);
        Y_BG = mm6;
  
        mm2 = _mm_loadlo_pi16_f(mm3);
        mm4 = _mm_loadhi_pi16_f(mm3);
        mm2 = _mm_srli_pi32(mm2, 1);
        mm4 = _mm_srli_pi32(mm4, 1);
  
        mm0 = PD_ONEHALFM1_CJ;
        mm1 = _mm_add_pi32(mm1, mm2);
        mm5 = _mm_add_pi32(mm5, mm4);
        mm1 = _mm_add_pi32(mm1, mm0);
        mm5 = _mm_add_pi32(mm5, mm0);
        mm1 = _mm_srli_pi32(mm1, SCALEBITS);
        mm5 = _mm_srli_pi32(mm5, SCALEBITS);
        mm1 = _mm_packs_pi32(mm1, mm5);
  
        mm7 = _mm_slli_pi16(mm7, BYTE_BIT);
        mm1 = _mm_or_si64(mm1, mm7);
        Cr_BG = mm1;
  
        _mm_store_si64((__m64 *)&outptr0[0], Y_BG);
        _mm_store_si64((__m64 *)&outptr1[0], Cb_RG);
        _mm_store_si64((__m64 *)&outptr2[0], Cr_BG);
      }
    }
  }
  
  #undef mmA
  #undef mmB
  #undef mmC
  #undef mmD
  #undef mmE
  #undef mmF
  #undef mmG
  #undef mmH
  

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