#ifndef TEXMERGER_H
#define TEXMERGER_H
/*
#include <GL/glew.h>
*/
#include <GLES2/gl2.h>
#include <vector>


class TexMerger {
private:
	GLuint program;
	GLuint* mergeBuffers;
	std::vector<bool> usageMap;
	GLuint FBO;
	GLuint quadVAO, vertVBO;
	GLuint shaderTex1Id, shaderTex2Id;
	int bufCount;
	GLuint reserveBuffer();
	bool isBuffer(GLuint number);
	void freeBuffer(GLuint number);
	GLfloat quadVerts[18] = {
		-1.0f, -1.0f, -1.0f,
		1.0f, -1.0f, -1.0f,
		-1.0f, 1.0f, -1.0f,
		-1.0f, 1.0f, -1.0f,
		1.0f, -1.0f, -1.0f,
		1.0f, 1.0f, -1.0f
	};


public:
	TexMerger(GLuint texCount, unsigned int texWidth, unsigned int texHeight);
	GLuint merge(std::vector<GLuint> inTextures, int startIndex, int endIndex);
};
#endif // !TEXMERGER_H