OpenGLShader.h

#pragma once
 
#include "Hana/Renderer/Shader.h"
#include <glm/glm.hpp>
 
// TODO: REMOVE!
typedef unsigned int GLenum;
 
namespace Hana
{
    class OpenGLShader : public Shader
    {
    public:
        OpenGLShader(const std::string& filepath);
        OpenGLShader(const std::string& name, const std::string& vertexSrc, const std::string& fragmentSrc);
        virtual ~OpenGLShader();
 
        virtual void Bind() const override;
        virtual void Unbind() const override;
 
        virtual void SetInt(const std::string& name, int value) override;
        virtual void SetFloat3(const std::string& name, const glm::vec3& value) override;
        virtual void SetFloat4(const std::string& name, const glm::vec4& value) override;
        virtual void SetMat4(const std::string& name, const glm::mat4& value) override;
 
        virtual const std::string& GetName() const override { return m_Name; }
 
        void UploadUniformInt(const std::string& name, int value);
 
        void UploadUniformFloat(const std::string& name, float value);
        void UploadUniformFloat2(const std::string& name, const glm::vec2& value);
        void UploadUniformFloat3(const std::string& name, const glm::vec3& value);
        void UploadUniformFloat4(const std::string& name, const glm::vec4& value);
 
        void UploadUniformMat3(const std::string& name, const glm::mat3& matrix);
        void UploadUniformMat4(const std::string& name, const glm::mat4& matrix);
    private:
        std::string ReadFile(const std::string& filepath);
        std::unordered_map<GLenum, std::string> PreProcess(const std::string& source);
        void Compile(const std::unordered_map<GLenum, std::string>& shaderSources);
 
        unsigned int m_RendererID;
        std::string m_Name;
    };
}