utility.hpp

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#pragma once
#pragma warning( disable : 4482 4996 4800 )

#include <fstream>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <glm/gtx/transform.hpp> 
#include <assimp.hpp>
#include <aiScene.h>
#include <aiPostProcess.h>

#include "common.hpp"

//namespace glm {
//class mat3;
//}

/*struct sStdGeomVertex
{
    glm::vec4 pos;
    glm::vec3 normal;
    glm::vec2 tex;
    glm::vec3 tangent;
    glm::vec3 binormal;
};*/

class Shader;
class Model;

bool fileExists(const string &filename);
string readFile(const string &filename);
void getErrors(void);

void printMatrix(glm::mat3 matrix);
void printMatrix(glm::mat4 matrix);
void printVector(glm::vec2 vec);
void printVector(glm::vec3 vec);
void printVector(glm::vec4 vec);
void printArray(float *printarray, int arraysize);
float randFloat(float a, float b);
int randInt(int a, int b);
int sign(float a);
GLbyte *gltReadTGABits(const char *szFileName, GLint *iWidth, GLint *iHeight, GLint *iComponents, GLenum *eFormat);
GLuint load2dTexture(const string& path, bool projection = false);
float *calculateNormals(const float *vertices_in, int arraysize);

void setupCubeMap(GLuint& texture);
GLuint loadCubeMap(string paths[]);
void unloadCubeMap(GLuint& texture); 
void initVboVao(const Shader& shader, GLuint *vbo_id, GLuint *vao_id, const GLfloat *positions, GLfloat *normals, const GLfloat *texcoordinates, int sizeofarray, int buffermode, bool update);
void initVboVaoFromModel(const Shader &shader, Model *model, const string& path, int buffermode);
void releaseVboVao(GLuint *vbo_id, GLuint *vao_id);

bool initFbo(GLuint &fboId, GLuint &imgId, int width, int height);
int  readPixel(unsigned int x, unsigned int y, GLuint fboId, GLuint imgId);

int *readPixels(unsigned int xFrom, unsigned int yFrom, unsigned int width, unsigned int height, GLuint fboId, GLuint imgId);
template <class T> string string_tostring(const T& t, const int digits = 1) { std::stringstream ss; ss << std::setw(digits) << std::setfill('0') << t;  return ss.str(); }