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/****************************************************************************
* Render Radiance Scaling *
* Meshlab's plugin *
* *
* Copyright(C) 2010 *
* Vergne Romain, Dumas Olivier *
* INRIA - Institut Nationnal de Recherche en Informatique et Automatique *
* *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
#ifndef TEXTURE_2D_H
#define TEXTURE_2D_H
#include <GL/glew.h>
#include <string>
#include "textureFormat.h"
#include "textureParams.h"
template<typename T = float>
class Texture2D {
public:
Texture2D(const TextureFormat &tf=TextureFormat(),
const TextureParams &tp=TextureParams(),
T* map=NULL,
int id=-1);
Texture2D(const Texture2D &tex);
~Texture2D();
inline GLuint id () const;
inline TextureFormat format() const;
inline TextureParams params() const;
inline void bind () const;
protected:
GLuint _id;
TextureFormat _format;
TextureParams _params;
};
template<typename T>
inline GLuint Texture2D<T>::id() const {
return _id;
}
template<typename T>
inline TextureFormat Texture2D<T>::format() const {
return _format;
}
template<typename T>
inline TextureParams Texture2D<T>::params() const {
return _params;
}
template<typename T>
inline void Texture2D<T>::bind() const {
glBindTexture(_format.target(),_id);
}
template<typename T>
Texture2D<T>::Texture2D(const Texture2D<T> &tex)
: _id(tex.id()),
_format(tex.format()),
_params(tex.params()) {
}
template<typename T>
Texture2D<T>::Texture2D(const TextureFormat &tf,const TextureParams &tp,T* map,int id)
: _id(id),
_format(tf),
_params(tp) {
assert(_format.target()==GL_TEXTURE_2D);
glEnable(GL_TEXTURE_2D);
if(id<0 || glIsTexture(id)==GL_FALSE) {
glGenTextures(1,&_id);
} else {
_id = id;
}
glBindTexture(_format.target(),_id);
if(_format.mipmapmode()==TextureFormat::MIPMAP_GLU_AUTOM) {
gluBuild2DMipmaps(_format.target(),
_format.internalformat(),
_format.width(),
_format.height(),
_format.format(),
_format.type(),
(const GLvoid *)map);
} else {
glTexImage2D(_format.target(),
_format.level(),
_format.internalformat(),
_format.width(),
_format.height(),
_format.border(),
_format.format(),
_format.type(),
(const GLvoid *)map);
if(_format.mipmapmode()==TextureFormat::MIPMAP_FBO_AUTOM) {
assert(map==NULL || map==0);
glGenerateMipmapEXT(_format.target());
}
}
glTexParameteri(_format.target(),GL_TEXTURE_MIN_FILTER,_params.minfilter());
glTexParameteri(_format.target(),GL_TEXTURE_MAG_FILTER,_params.maxfilter());
glTexParameteri(_format.target(),GL_TEXTURE_WRAP_S,_params.wraps());
glTexParameteri(_format.target(),GL_TEXTURE_WRAP_T,_params.wrapt());
//glTexEnvi(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,_params.mode());
}
template<typename T>
Texture2D<T>::~Texture2D() {
glDeleteTextures(1,&_id);
}
typedef Texture2D<float> FloatTexture2D;
typedef Texture2D<unsigned char> UbyteTexture2D;
typedef Texture2D<unsigned int> UintTexture2D;
#endif // TEXTURE_2D_H
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