1 /* 2 ----------------------------------------------------------------------------- 3 This source file is part of OGRE 4 (Object-oriented Graphics Rendering Engine) 5 For the latest info, see http://www.ogre3d.org/ 6 7 Copyright (c) 2000-2013 Torus Knot Software Ltd 8 9 Permission is hereby granted, free of charge, to any person obtaining a copy 10 of this software and associated documentation files (the "Software"), to deal 11 in the Software without restriction, including without limitation the rights 12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 13 copies of the Software, and to permit persons to whom the Software is 14 furnished to do so, subject to the following conditions: 15 16 The above copyright notice and this permission notice shall be included in 17 all copies or substantial portions of the Software. 18 19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 22 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 23 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 24 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 25 THE SOFTWARE. 26 ----------------------------------------------------------------------------- 27 */ 28 #ifndef OGRE_GLSUPPORT_H 29 #define OGRE_GLSUPPORT_H 30 31 #include "OgreGLPrerequisites.h" 32 #include "OgreGLRenderSystem.h" 33 34 #include "OgreRenderWindow.h" 35 #include "OgreConfigOptionMap.h" 36 #include "OgreGLPBuffer.h" 37 38 namespace Ogre 39 { 40 41 class GLStateCacheManager; 42 43 class _OgreGLExport GLSupport 44 { 45 public: GLSupport()46 GLSupport() { } ~GLSupport()47 virtual ~GLSupport() { } 48 49 /** 50 * Add any special config values to the system. 51 * Must have a "Full Screen" value that is a bool and a "Video Mode" value 52 * that is a string in the form of wxh 53 */ 54 virtual void addConfig() = 0; 55 56 virtual void setConfigOption(const String &name, const String &value); 57 58 /** 59 * Make sure all the extra options are valid 60 * @return string with error message 61 */ 62 virtual String validateConfig() = 0; 63 64 virtual ConfigOptionMap& getConfigOptions(void); 65 66 virtual RenderWindow* createWindow(bool autoCreateWindow, GLRenderSystem* renderSystem, const String& windowTitle) = 0; 67 68 /// @copydoc RenderSystem::_createRenderWindow 69 virtual RenderWindow* newWindow(const String &name, unsigned int width, unsigned int height, 70 bool fullScreen, const NameValuePairList *miscParams = 0) = 0; 71 72 virtual bool supportsPBuffers(); 73 virtual GLPBuffer *createPBuffer(PixelComponentType format, size_t width, size_t height); 74 getStateCacheManager()75 GLStateCacheManager* getStateCacheManager() const 76 { 77 return mStateCacheManager; 78 } 79 setStateCacheManager(GLStateCacheManager * stateCacheMgr)80 void setStateCacheManager(GLStateCacheManager* stateCacheMgr) 81 { 82 mStateCacheManager = stateCacheMgr; 83 } 84 85 /** 86 * Start anything special 87 */ 88 virtual void start() = 0; 89 /** 90 * Stop anything special 91 */ 92 virtual void stop() = 0; 93 94 /** 95 * Get vendor information 96 */ getGLVendor(void)97 const String& getGLVendor(void) const 98 { 99 return mVendor; 100 } 101 102 /** 103 * Get version information 104 */ getGLVersion(void)105 const String& getGLVersion(void) const 106 { 107 return mVersion; 108 } 109 110 /** 111 * Compare GL version numbers 112 */ 113 bool checkMinGLVersion(const String& v) const; 114 115 /** 116 * Check if an extension is available 117 */ 118 virtual bool checkExtension(const String& ext) const; 119 /** 120 * Get the address of a function 121 */ 122 virtual void* getProcAddress(const String& procname) = 0; 123 124 /** Initialises GL extensions, must be done AFTER the GL context has been 125 established. 126 */ 127 virtual void initialiseExtensions(); 128 129 /// @copydoc RenderSystem::getDisplayMonitorCount getDisplayMonitorCount()130 virtual unsigned int getDisplayMonitorCount() const 131 { 132 return 1; 133 } 134 135 protected: 136 // Stored options 137 ConfigOptionMap mOptions; 138 139 // This contains the complete list of supported extensions 140 set<String>::type extensionList; 141 private: 142 String mVersion; 143 String mVendor; 144 145 GLStateCacheManager* mStateCacheManager; 146 147 }; // class GLSupport 148 149 } // namespace Ogre 150 151 #endif // OGRE_GLSUPPORT_H 152