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Source/Engine/GraphicsDevice/OpenGL/RenderToolsOGL.h

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "Engine/Core/Types/BaseTypes.h"
+#include "Engine/Graphics/RenderTools.h"
+#include "Engine/Graphics/Enums.h"
+
+#if GRAPHICS_API_OPENGL
+
+#include "Engine/Graphics/Textures/GPUTextureDescription.h"
+#include "IncludeOpenGLHeaders.h"
+
+#if GPU_ENABLE_ASSERTION
+
+// OpenGL results validation
+#define VALIDATE_OPENGL_RESULT() RenderToolsOGL::CheckError(__FILE__, __LINE__)
+
+#else
+
+#define VALIDATE_OPENGL_RESULT(x)
+
+#endif
+
+/// <summary>
+/// Set of utilities for rendering on OpenGL platform.
+/// </summary>
+namespace RenderToolsOGL
+{
+	inline GLenum ComparisonFuncToOGL(ComparisonFunc func)
+	{
+		switch (func)
+		{
+		case ComparisonFunc::Never: return GL_NEVER;
+		case ComparisonFunc::Less: return GL_LESS;
+		case ComparisonFunc::Equal: return GL_EQUAL;
+		case ComparisonFunc::LessEqual: return GL_LEQUAL;
+		case ComparisonFunc::Grather: return GL_GREATER;
+		case ComparisonFunc::NotEqual: return GL_NOTEQUAL;
+		case ComparisonFunc::GratherEqual: return GL_GEQUAL;
+		case ComparisonFunc::Always: return GL_ALWAYS;
+		default: CRASH; return GL_ALWAYS;
+		}
+	}
+
+	const Char* GetErrorString(GLenum errorCode);
+
+	void CheckError(const char* file, uint32 line);
+
+	void ErrorCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, GLvoid *userParam);
+};
+
+#endif