/*
	QGL CubeTexture
	Ivan Pelipenko peri4ko@yandex.ru

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as published by
	the Free Software Foundation, either version 3 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 Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef GLCUBEMAP_H
#define GLCUBEMAP_H

#include "glshaders_types.h"
#include "chunkstream.h"

QVector<QVector3D> loadFileHDR(const QString & path, QSize * size = 0);

class CubeTexture {
public:
	CubeTexture(QOpenGLExtraFunctions * f_, int _size, const GLenum & _format = GL_RGB16F);
	bool init();
	void destroy();
	void bind(int channel = 0);
	void release();
	void resize(int _size) {size = _size; changed_ = true;}
	void loadHDR(const QVector<QVector3D> & data, QSize sz);
	void setFileHDR(const QString & path);
	QString fileHDR() const {return hdr_path;}
	GLenum format() const {return format_;}
	void setFormat(GLenum f) {format_ = f; changed_ = true;}
	GLuint id() const {return id_;}
	bool isInit() const {return id_ != 0;}
	void load();
private:

	QOpenGLExtraFunctions * f;
	bool changed_;
	int size;
	GLenum format_;
	GLuint id_;
	QString hdr_path;
};


#endif // GLCUBEMAP_H