opengl_graphic_context.h

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00001 /*
00002 **  ClanLib SDK
00003 **  Copyright (c) 1997-2011 The ClanLib Team
00004 **
00005 **  This software is provided 'as-is', without any express or implied
00006 **  warranty.  In no event will the authors be held liable for any damages
00007 **  arising from the use of this software.
00008 **
00009 **  Permission is granted to anyone to use this software for any purpose,
00010 **  including commercial applications, and to alter it and redistribute it
00011 **  freely, subject to the following restrictions:
00012 **
00013 **  1. The origin of this software must not be misrepresented; you must not
00014 **     claim that you wrote the original software. If you use this software
00015 **     in a product, an acknowledgment in the product documentation would be
00016 **     appreciated but is not required.
00017 **  2. Altered source versions must be plainly marked as such, and must not be
00018 **     misrepresented as being the original software.
00019 **  3. This notice may not be removed or altered from any source distribution.
00020 **
00021 **  Note: Some of the libraries ClanLib may link to may have additional
00022 **  requirements or restrictions.
00023 **
00024 **  File Author(s):
00025 **
00026 **    Mark Page
00027 */
00028 
00031 
00032 #pragma once
00033 
00034 #include "api_gl.h"
00035 #include "../Core/System/sharedptr.h"
00036 #include "../Display/Render/graphic_context.h"
00037 
00038 class CL_GraphicContext_GL_Impl;
00039 
00043 class CL_API_GL CL_GraphicContext_GL : public CL_GraphicContext
00044 {
00046 public:
00047         // \brief Create a null instance
00048         CL_GraphicContext_GL() {}
00049 
00051         CL_GraphicContext_GL(CL_GraphicContext &gc);
00052 
00053         ~CL_GraphicContext_GL();
00054 
00056 public:
00058         bool is_null() const { return !impl; }
00059 
00061         void throw_if_null() const;
00062 
00067         void get_opengl_version(int &version_major, int &version_minor);
00068 
00073         void get_opengl_shading_language_version(int &version_major, int &version_minor);
00074 
00076         CL_String get_renderer_string();
00077 
00079         CL_String get_vendor_string();
00080 
00082         std::vector<CL_String> get_extensions();
00083 
00085 public:
00089         void set_active();
00090 
00092 private:
00093         CL_SharedPtr<CL_GraphicContext_GL_Impl> impl;
00094 };
00095