GODOT IS OPEN SOURCE

drivers/gl_context/SCsub

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+Import('env')
+Export('env');
+
+env.add_source_files(env.drivers_sources,"*.cpp")
+env.add_source_files(env.drivers_sources,"*.c")
+

drivers/gl_context/context_gl.cpp

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+/*************************************************/
+/*  context_gl.cpp                               */
+/*************************************************/
+/*            This file is part of:              */
+/*                GODOT ENGINE                   */
+/*************************************************/
+/*       Source code within this file is:        */
+/*  (c) 2007-2010 Juan Linietsky, Ariel Manzur   */
+/*             All Rights Reserved.              */
+/*************************************************/
+
+#include "context_gl.h"
+
+
+#if defined(OPENGL_ENABLED) || defined(LEGACYGL_ENABLED) || defined(GLES2_ENABLED) || defined(GLES1_ENABLED)
+
+
+
+ContextGL *ContextGL::singleton=NULL;
+
+ContextGL *ContextGL::get_singleton() {
+
+	return singleton;
+}
+
+
+ContextGL::ContextGL() {
+	
+	ERR_FAIL_COND(singleton);
+	
+	singleton=this;
+}
+
+
+ContextGL::~ContextGL() {
+
+	if (singleton==this)
+		singleton=NULL;
+}
+
+#endif

drivers/gl_context/context_gl.h

@@ -0,0 +1,66 @@
+/*************************************************************************/
+/*  context_gl.h                                                         */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#ifndef CONTEXT_GL_H
+#define CONTEXT_GL_H
+
+#if defined(OPENGL_ENABLED) || defined(LEGACYGL_ENABLED) || defined(GLES2_ENABLED) || defined(GLES1_ENABLED)
+
+#include "typedefs.h"
+
+/**
+	@author Juan Linietsky <reduzio@gmail.com>
+*/
+
+
+class ContextGL {
+
+	static ContextGL *singleton;
+public:
+
+	static ContextGL *get_singleton();
+	
+	virtual void release_current()=0;
+
+	virtual void make_current()=0;
+
+	virtual void swap_buffers()=0;
+	
+	virtual Error initialize()=0;
+	
+	
+	
+	ContextGL();	
+	~ContextGL();
+
+};
+
+
+#endif
+
+#endif