src/shallowGPU.h

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#ifndef SHALLOWGPU_H
#define SHALLOWGPU_H
#include "readData.h"
#include "glm.hpp"
#include "gtc/type_ptr.hpp"
#include <vector>
#include "xmlParsing.h"

class ShallowGPU{
private:

  static bool DEBUG; 
  GLint texWidth; 
  GLint texHeight; 

  float* flow; 

  DataHandler* terr; 
  GLuint cycle; 

  GLuint bufferOut; 

  int clip(int n, int lower, int upper);

  float clipf(GLfloat n, GLfloat lower, GLfloat upper);


  GLfloat totTime; 

  std::vector<Flood_Fill_data*> flood; 


  void initFloodFill(float* u);

  void floodFill(float* u, int x, int z, float height);

  void Print(GLuint bID, std::string msg, int iter) const;

  void PrintNumber(float value) const;

  void PrintHelper(std::string start_end, std::string msg, int iter) const;

public:

  void cycleBuffer();


  GLuint advectWaterProgram; 
  GLuint addProgram;
  GLuint advectVelocityXProgram;
  GLuint advectVelocityYProgram;
  GLuint updateHeightProgram; 
  GLuint updateVelocityProgram;
  GLuint shallowBuffers[9];

  ShallowGPU(DataHandler *t,std::vector<Flood_Fill_data*> FFDataIn) { terr = t; texWidth = t->getDataWidth();
  texHeight = t->getDataHeight(); totTime = 0.0f; flood = FFDataIn; bufferOut = 0; cycle = 0;};

  void initGPU();

  void runSimGPU(GLfloat dt = 1.0f/30.0f);
};



#endif