shadermanager.h

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/*****************************************************************************************
 * SGCT                                                                                  *
 * Simple Graphics Cluster Toolkit                                                       *
 *                                                                                       *
 * Copyright (c) 2012-2026                                                               *
 * For conditions of distribution and use, see copyright notice in LICENSE.md            *
 ****************************************************************************************/
 
#ifndef __SGCT__SHADERMANAGER__H__
#define __SGCT__SHADERMANAGER__H__
 
#include <sgct/sgctexports.h>
 
#include <sgct/shaderprogram.h>
#include <string>
#include <string_view>
#include <vector>
 
namespace sgct {

class SGCT_EXPORT ShaderManager {
public:
    static ShaderManager& instance();
    static void destroy();
 
    ShaderManager(const ShaderManager&) = delete;
    ShaderManager(ShaderManager&&) = delete;
    ShaderManager& operator=(const ShaderManager&) = delete;
    ShaderManager& operator=(ShaderManager&&) = delete;

    ~ShaderManager();
 

    void addShaderProgram(std::string name, std::string_view vertexSrc,
        std::string_view fragmentSrc);

    bool removeShaderProgram(std::string_view name);

    bool shaderProgramExists(std::string_view name) const;

    const ShaderProgram& shaderProgram(std::string_view name) const;
 
private:
    ShaderManager() = default;
    static ShaderManager* _instance;
    std::vector<ShaderProgram> _shaderPrograms;
};
 
} // namespace sgct
 
#endif // __SGCT__SHADERMANAGER__H__