WCudaMSE/Student_Cuda_Image/src/cpp/core/02_Mandelbrot_Julia/moo/device/FractalDevice.cu

   1 #include <iostream>\r
   2 \r
   3 #include "Indice2D.h"\r
   4 #include "IndiceTools.h"\r
   5 #include "DomaineMath.h"\r
   6 #include "cudaTools.h"\r
   7 #include "Device.h"\r
   8 \r
   9 #include "FractalMath.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 __global__ void fractal(uchar4* ptrDevPixels, int w, int h, DomaineMath domaineMath, int n, float t);\r
  27 \r
  28 /*--------------------------------------*\\r
  29  |*             Private                 *|\r
  30  \*-------------------------------------*/\r
  31 \r
  32 /*----------------------------------------------------------------------*\\r
  33  |*                     Implementation                                  *|\r
  34  \*---------------------------------------------------------------------*/\r
  35 \r
  36 /*--------------------------------------*\\r
  37  |*             Public                  *|\r
  38  \*-------------------------------------*/\r
  39 \r
  40 /*--------------------------------------*\\r
  41  |*             Private                 *|\r
  42  \*-------------------------------------*/\r
  43 \r
  44 __global__ void fractal(uchar4* ptrDevPixels, int w, int h, DomaineMath domaineMath, int n, float t)\r
  45     {\r
  46     FractalMath fractalMath(n);\r
  47 \r
  48     const int TID = Indice2D::tid();\r
  49     const int NB_THREAD = Indice2D::nbThread();\r
  50     const int WH = w * h;\r
  51 \r
  52     uchar4 color;\r
  53     color.z = 255; // Par défaut, l'image est opaque.\r
  54 \r
  55     double x, y;\r
  56     int pixelI, pixelJ;\r
  57 \r
  58     int s = TID;\r
  59     while (s < WH)\r
  60         {\r
  61         IndiceTools::toIJ(s, w, &pixelI, &pixelJ); // update (pixelI, pixelJ)\r
  62 \r
  63         // (i,j) domaine ecran\r
  64         // (x,y) domaine math\r
  65         domaineMath.toXY(pixelI, pixelJ, &x, &y); //  (i,j) -> (x,y)\r
  66 \r
  67         fractalMath.colorXY(&color,x, y, t); // update color\r
  68 \r
  69         ptrDevPixels[s] = color;\r
  70 \r
  71         s += NB_THREAD;\r
  72         }\r
  73     }\r
  74 \r
  75 /*----------------------------------------------------------------------*\\r
  76  |*                     End                                             *|\r
  77  \*---------------------------------------------------------------------*/\r
  78 \r