shader_program.hpp

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#ifndef FOOLSENGINE_SHADERPROGRAM_H
#define FOOLSENGINE_SHADERPROGRAM_H
 
#include <string>
#include <map>
 
#include <GL/glew.h>
#include <glm/glm.hpp>
 
#include "core/resource_database.hpp"
 
namespace ToyMaker {

    class ShaderProgram: public Resource<ShaderProgram> {
    public:
        inline static std::string getResourceTypeName() { return "ShaderProgram"; }

        ShaderProgram(GLuint program);

        ~ShaderProgram();
 
 
        ShaderProgram(const ShaderProgram& other) = delete;
        ShaderProgram& operator=(const ShaderProgram& other) = delete;

        ShaderProgram(ShaderProgram&& other) noexcept;
        ShaderProgram& operator=(ShaderProgram&& other) noexcept;

        void use() const;

        GLint getLocationAttribArray(const std::string& name) const;

        void enableAttribArray(const std::string& name) const;

        void enableAttribArray(GLint locationAttrib) const;

        void disableAttribArray(const std::string& name) const;

        void disableAttribArray(GLint locationAttrib) const;

        GLint getLocationUniform(const std::string& name) const;

        void setUBool(const std::string& name, bool value) const;

        void setUInt(const std::string& name, int value) const;

        void setUFloat(const std::string& name, float value) const;

        void setUVec2(const std::string& name, const glm::vec2& value) const;

        void setUVec3(const std::string& name, const glm::vec3& value) const;

        void setUVec4(const std::string& name, const glm::vec4& value) const;

        void setUMat4(const std::string& name, const glm::mat4& value) const;

        GLint getLocationUniformBlock(const std::string& name) const;

        void setUniformBlock(const std::string& name, GLuint bindingPoint) const;

        GLuint getProgramID() const;
 
    private:
        void destroyResource();

        void releaseResource();

        GLuint mID;
    };

    class ShaderProgramFromFile: public ResourceConstructor<ShaderProgram, ShaderProgramFromFile> {
    public:
        ShaderProgramFromFile():
        ResourceConstructor<ShaderProgram, ShaderProgramFromFile> {0}
        {}
        inline static std::string getResourceConstructorName() { return "fromFile"; }
    private:
        std::shared_ptr<IResource> createResource(const nlohmann::json& methodParameters) override;
    };
 
}
 
#endif