WCudaMSE/Tuto_Image_Cuda/src/cpp/core/01_Vague_smart/moo/device/math/VagueMath.h

   1 #ifndef VAGUE_MATH_H_
   2 #define VAGUE_MATH_H_
   3
   4 #include "MathTools.h"
   5
   6 /*----------------------------------------------------------------------*\
   7  |*                     Declaration                                     *|
   8  \*---------------------------------------------------------------------*/
   9
  10 /*--------------------------------------*\
  11  |*             Public                  *|
  12  \*-------------------------------------*/
  13
  14 class VagueMath
  15     {
  16
  17         /*--------------------------------------*\
  18         |*              Constructor             *|
  19          \*-------------------------------------*/
  20
  21     public:
  22
  23         __device__ VagueMath(int w, int h)
  24             {
  25             this->factor = 4 * PI / (float) w;
  26             }
  27
  28         __device__ VagueMath(const VagueMath& source)
  29             {
  30             // rien
  31             }
  32
  33         /*--------------------------------------*\
  34         |*              Methodes                *|
  35          \*-------------------------------------*/
  36
  37     public:
  38
  39         /**
  40          * x=pixelI
  41          * y=pixelJ
  42          */
  43         __device__
  44         void colorIJ(uchar4* ptrColor, int i, int j, float t)
  45             {
  46             unsigned char levelGris;
  47
  48             f(levelGris, i, j, t); // update levelGris
  49
  50             ptrColor->x = levelGris;
  51             ptrColor->y = levelGris;
  52             ptrColor->z = levelGris;
  53
  54             ptrColor->w = 255; // opaque
  55             }
  56
  57     private:
  58
  59         __device__
  60         void f(unsigned char& levelGris, int i, int j, float t)
  61             {
  62             // Example1
  63             //unsigned char levelGris= 255 * abs(sin(t)); // same color for all the image (Hello image)
  64
  65             // Example2
  66             levelGris = 255 * fabs(sin(i * factor + t));
  67             }
  68
  69         /*--------------------------------------*\
  70         |*              Attributs               *|
  71          \*-------------------------------------*/
  72
  73     private:
  74
  75         double factor;
  76
  77     };
  78
  79 #endif
  80
  81 /*----------------------------------------------------------------------*\
  82  |*                     End                                             *|
  83  \*---------------------------------------------------------------------*/