MobileGL/MobileGL/MG_State/GLState/ProgramState/ShaderObject.h

#pragma once
#include "MG_Util/Types.h"

namespace MobileGL {
    namespace MG_State {
        namespace GLState {
            enum class ShaderStage {
                Vertex,
                TessControl,
                TessEval,
                Geometry,
                Fragment,
                Compute
            };

            inline static GLenum GetGLShaderTypeByMGLShaderStage(ShaderStage stage) {
                switch (stage) {
                    case ShaderStage::Vertex:
                        return GL_VERTEX_SHADER;
                    case ShaderStage::TessControl:
                        return GL_TESS_CONTROL_SHADER;
                    case ShaderStage::TessEval:
                        return GL_TESS_EVALUATION_SHADER;
                    case ShaderStage::Geometry:
                        return GL_GEOMETRY_SHADER;
                    case ShaderStage::Fragment:
                        return GL_FRAGMENT_SHADER;
                    case ShaderStage::Compute:
                        return GL_COMPUTE_SHADER;
                    default:
                        assert(false);
                        return 0;
                }
            }

            class ShaderObject {
            public:
                ShaderObject(const ShaderStage stage): m_stage(stage) {}
                void SetShaderSource(const std::string& source);
                void Compile();

                const ShaderStage m_stage;
                std::string m_source;
                SharedPtr<glslang::TShader> m_shader;
                std::string m_infoLog;

                bool m_deleteStatus = false;
                bool m_compileStatus = false;
            };
        }
    }
}