gl_texture.h
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#ifndef STIM_GL_TEXTURE_H
#define STIM_GL_TEXTURE_H
/*
includes not necessary (yet)
#include <iterator>
#include <algorithm>
*/
#include <math.h>
#include <iostream>
#include <vector>
#include "../grids/image_stack.h"
#include <GL/glut.h>
//#include <GL/glext.h>
#include "./error.h"
namespace stim{
/*
class gl_texture
Uses image_stack class in order to create a texture object.
*/
template<typename T>
class gl_texture : public virtual image_stack<T>
{
protected:
std::string path;
GLuint texID;
using image_stack<T>::R;
using image_stack<T>::ptr;
using image_stack<T>::samples;
public:
/*
Method: Basic Constructor
Inputs:
Outputs:
Creates an instance of the gl_texture object.
*/
gl_texture(){
}
/*
Method: Path Constructor
Inputs: string file_path
Outputs:
Creates an instance of the gl_texture object with a path to the data.
*/
gl_texture(std::string file_path)
{
path = file_path;
}
/*
Method: setPath
Inputs:string file_Path
Outputs:
sets the protected path variable of an instance of the gl_texture class
to the method input.
*/
void
setPath(std::string file_path)
{
path = file_path;
}
/*
Method: getPath
Inputs:
Outputs: string path
Returns the path associated with an instance of the gl_texture class.
*/
std::string
getPath()
{
return path;
}
/*
Method: getTexture
Inputs:
Outputs: GLuint texID
Returns the id of the texture create by/associated with the
instance of the gl_texture class.
*/
GLuint
getTexture()
{
return texID;
}
/*
Method: createTexture
Inputs:
Outputs:
Creates a texture and from the data located at <path> and
assigns that texture to texID
*/
//TO DO :::: Add handling for 2D and 1D textures
void
createTexture()
{
image_stack<T>::load_images(path.append("/*.jpg"));
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
glGenTextures(1, &texID);
CHECK_OPENGL_ERROR
glBindTexture(GL_TEXTURE_3D, texID);
CHECK_OPENGL_ERROR
glTexParameteri(GL_TEXTURE_3D,
GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_3D,
GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_3D,
GL_TEXTURE_WRAP_S, GL_REPEAT);
CHECK_OPENGL_ERROR
glTexParameteri(GL_TEXTURE_3D,
GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_3D,
GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_3D,
GL_TEXTURE_WRAP_R, GL_REPEAT);
CHECK_OPENGL_ERROR
glTexImage3D(GL_TEXTURE_3D,
0,
// GL_RGB16,
1,
R[1],
R[2],
R[3],
0,
GL_LUMINANCE,
// GL_RGB,
GL_UNSIGNED_BYTE,
ptr);
//GL_UNSIGNED_BYTE can be TYPES, convert to GL equivalents
CHECK_OPENGL_ERROR
glPixelStorei(GL_PACK_ALIGNMENT,1);
}
//Binds the texture
void
Bind()
{
glBindTexture(GL_TEXTURE_3D, texID);
}
stim::vec<unsigned long,4>
getDims()
{
return R;
}
T*
getData()
{
return ptr;
}
//TO DO:::add methods for handling the cases of T and convert them to GL equivalent.
};
}
#endif