Line data    Source code

       1             : /******************************************************************************
       2             :  * $Id$
       3             :  *
       4             :  * Project:  GDAL Core
       5             :  * Purpose:  Test performance of GDADLTranspose2D().
       6             :  * Author:   Even Rouault, <even dot rouault at spatialys.com>
       7             :  *
       8             :  ******************************************************************************
       9             :  * Copyright (c) 2025, Even Rouault <even dot rouault at spatialys.com>
      10             :  *
      11             :  * SPDX-License-Identifier: MIT
      12             :  ****************************************************************************/
      13             : 
      14             : #include "gdal.h"
      15             : #include "cpl_conv.h"
      16             : 
      17             : #include <cstdio>
      18             : #include <cstdlib>
      19             : #include <ctime>
      20             : 
      21             : #define SIZE (1024 * 1024 + 1) * 100
      22             : 
      23           0 : static void test(const void *pSrc, GDALDataType eSrcType, void *pDst,
      24             :                  GDALDataType eDstType, int W, int H, int reducFactor,
      25             :                  const char *extraMsg = "")
      26             : {
      27           0 :     CPLAssert(W * H <= SIZE);
      28             : 
      29           0 :     const int niters =
      30           0 :         static_cast<int>(4000U * 1000 * 1000 / reducFactor / W / H);
      31           0 :     const auto start = clock();
      32           0 :     for (int i = 0; i < niters; ++i)
      33           0 :         GDALTranspose2D(pSrc, eSrcType, pDst, eDstType, W, H);
      34           0 :     const auto end = clock();
      35           0 :     printf("W=%d, H=%d, reducFactor=%d%s: %0.2f sec\n", W, H, reducFactor,
      36           0 :            extraMsg, (end - start) * reducFactor * 1.0 / CLOCKS_PER_SEC);
      37           0 : }
      38             : 
      39           1 : int main(int /* argc */, char * /* argv */[])
      40             : {
      41           1 :     if (strstr(GDALVersionInfo("--version"), "debug build"))
      42             :     {
      43           1 :         printf("Skipping testperftranspose as this a debug build!\n");
      44           1 :         return 0;
      45             :     }
      46             : 
      47           0 :     void *src = CPLCalloc(1, SIZE);
      48           0 :     void *dst = CPLCalloc(1, SIZE);
      49             : 
      50           0 :     test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 2, 1);
      51           0 :     test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 3, 1);
      52             : #if defined(HAVE_SSSE3_AT_COMPILE_TIME) && defined(DEBUG)
      53             :     {
      54           0 :         CPLConfigOptionSetter oSetters("GDAL_USE_SSSE3", "NO", false);
      55           0 :         test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 3, 10,
      56             :              " (no SSSE3)");
      57             :     }
      58             : #endif
      59           0 :     test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 4, 1);
      60           0 :     test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 5, 1);
      61             : #if defined(HAVE_SSSE3_AT_COMPILE_TIME) && defined(DEBUG)
      62             :     {
      63           0 :         CPLConfigOptionSetter oSetters("GDAL_USE_SSSE3", "NO", false);
      64           0 :         test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 5, 10,
      65             :              " (no SSSE3)");
      66             :     }
      67             : #endif
      68           0 :     test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 16 + 1, 10);
      69             : #if defined(HAVE_SSSE3_AT_COMPILE_TIME) && defined(DEBUG)
      70             :     {
      71           0 :         CPLConfigOptionSetter oSetters("GDAL_USE_SSSE3", "NO", false);
      72           0 :         test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 16 + 1, 10,
      73             :              " (no SSSE3)");
      74             :     }
      75             : #endif
      76           0 :     test(src, GDT_Byte, dst, GDT_Byte, 1024 * 1024 + 1, 100, 10);
      77           0 :     test(src, GDT_Byte, dst, GDT_Byte, 70 * 1024 + 1, 1024 + 1, 10);
      78             : #if defined(HAVE_SSSE3_AT_COMPILE_TIME) && defined(DEBUG)
      79             :     {
      80           0 :         CPLConfigOptionSetter oSetters("GDAL_USE_SSSE3", "NO", false);
      81           0 :         test(src, GDT_Byte, dst, GDT_Byte, 70 * 1024 + 1, 1024 + 1, 10,
      82             :              " (no SSSE3)");
      83             :     }
      84             : #endif
      85           0 :     test(src, GDT_Byte, dst, GDT_Byte, 7 * 1024 + 1, 10 * 1024 + 1, 10);
      86             : #if defined(HAVE_SSSE3_AT_COMPILE_TIME) && defined(DEBUG)
      87             :     {
      88           0 :         CPLConfigOptionSetter oSetters("GDAL_USE_SSSE3", "NO", false);
      89           0 :         test(src, GDT_Byte, dst, GDT_Byte, 7 * 1024 + 1, 10 * 1024 + 1, 10,
      90             :              " (no SSSE3)");
      91             :     }
      92             : #endif
      93             : 
      94           0 :     VSIFree(src);
      95           0 :     VSIFree(dst);
      96           0 :     return 0;
      97             : }