WCudaMSE/Student_Cuda_Image/src/cpp/core/00_Rippling_warmup/02_cuda/rippling0.cu

   1 #include <iostream>\r
   2 #include <stdlib.h>\r
   3 \r
   4 #include "Indice2D.h"\r
   5 #include "IndiceTools.h"\r
   6 #include "cudaTools.h"\r
   7 #include "Device.h"\r
   8 \r
   9 #include "Rippling0Math.h"\r
  10 \r
  11 using std::cout;\r
  12 using std::endl;\r
  13 \r
  14 /*----------------------------------------------------------------------*\\r
  15  |*                     Declaration                                     *|\r
  16  \*---------------------------------------------------------------------*/\r
  17 \r
  18 /*--------------------------------------*\\r
  19  |*             Imported                *|\r
  20  \*-------------------------------------*/\r
  21 \r
  22 /*--------------------------------------*\\r
  23  |*             Public                  *|\r
  24  \*-------------------------------------*/\r
  25 \r
  26 \r
  27 \r
  28 /*--------------------------------------*\\r
  29  |*             Private                 *|\r
  30  \*-------------------------------------*/\r
  31 \r
  32 static __global__ void rippling0(uchar4* ptrDevPixels,int w, int h,float t);\r
  33 \r
  34 /*----------------------------------------------------------------------*\\r
  35  |*                     Implementation                                  *|\r
  36  \*---------------------------------------------------------------------*/\r
  37 \r
  38 /*--------------------------------------*\\r
  39  |*             Public                  *|\r
  40  \*-------------------------------------*/\r
  41 \r
  42 void launchKernelRippling0(uchar4* ptrDevPixels, int w, int h, float t)\r
  43     {\r
  44     dim3 dg = dim3(4, 4, 1); // disons, a optimiser\r
  45     dim3 db = dim3(8, 8, 1); // disons, a optimiser\r
  46 \r
  47     //Device::print(dg, db);\r
  48     Device::checkDimError(dg,db);\r
  49 \r
  50     rippling0<<<dg,db>>>(ptrDevPixels,w,h,t);\r
  51     Device::checkKernelError("rippling0");\r
  52     }\r
  53 \r
  54 /*--------------------------------------*\\r
  55  |*             Private                 *|\r
  56  \*-------------------------------------*/\r
  57 \r
  58 __global__ void rippling0(uchar4* ptrDevPixels, int w, int h, float t)\r
  59     {\r
  60     Rippling0Math rippling0Math(w, h);\r
  61 \r
  62     const int TID = Indice2D::tid();\r
  63     const int NB_THREAD = Indice2D::nbThread();\r
  64 \r
  65     const int WH=w*h;\r
  66 \r
  67     uchar4 color;\r
  68     color.w = 255; // alpha\r
  69 \r
  70     int pixelI;\r
  71     int pixelJ;\r
  72 \r
  73     int s = TID;\r
  74     while (s < WH)\r
  75         {\r
  76         IndiceTools::toIJ(s, w, &pixelI, &pixelJ); // update (pixelI, pixelJ)\r
  77 \r
  78         rippling0Math.color(pixelI, pixelJ, t, &color); // update color\r
  79         ptrDevPixels[s] = color;\r
  80 \r
  81         s += NB_THREAD;\r
  82         }\r
  83 \r
  84     }\r
  85 \r
  86 \r
  87 \r
  88 /*----------------------------------------------------------------------*\\r
  89  |*                     End                                             *|\r
  90  \*---------------------------------------------------------------------*/\r
  91 \r