mirror of https://github.com/axmolengine/axmol.git
162 lines
4.8 KiB
C++
162 lines
4.8 KiB
C++
/****************************************************************************
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Copyright (c) 2010 Ricardo Quesada
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2013-2014 Chukong Technologies Inc.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __CCCONFIGURATION_H__
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#define __CCCONFIGURATION_H__
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#include "base/CCRef.h"
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#include "CCGL.h"
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#include "base/CCValue.h"
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#include <string>
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NS_CC_BEGIN
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/**
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* @addtogroup global
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* @{
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*/
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/**
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@brief Configuration contains some openGL variables
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@since v0.99.0
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*/
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class CC_DLL Configuration : public Ref
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{
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public:
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/** returns a shared instance of Configuration */
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static Configuration *getInstance();
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/** purge the shared instance of Configuration */
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static void destroyInstance();
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/** @deprecated Use getInstance() instead */
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CC_DEPRECATED_ATTRIBUTE static Configuration *sharedConfiguration();
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/** @deprecated Use destroyInstance() instead */
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CC_DEPRECATED_ATTRIBUTE static void purgeConfiguration();
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public:
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/**
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* @js NA
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* @lua NA
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*/
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virtual ~Configuration();
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/** OpenGL Max texture size. */
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int getMaxTextureSize() const;
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/** OpenGL Max Modelview Stack Depth. */
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int getMaxModelviewStackDepth() const;
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/** returns the maximum texture units
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@since v2.0.0
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*/
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int getMaxTextureUnits() const;
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/** Whether or not the GPU supports NPOT (Non Power Of Two) textures.
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OpenGL ES 2.0 already supports NPOT (iOS).
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@since v0.99.2
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*/
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bool supportsNPOT() const;
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/** Whether or not PVR Texture Compressed is supported */
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bool supportsPVRTC() const;
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/** Whether or not ETC Texture Compressed is supported */
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bool supportsETC() const;
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/** Whether or not S3TC Texture Compressed is supported */
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bool supportsS3TC() const;
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/** Whether or not ATITC Texture Compressed is supported */
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bool supportsATITC() const;
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/** Whether or not BGRA8888 textures are supported.
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@since v0.99.2
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*/
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bool supportsBGRA8888() const;
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/** Whether or not glDiscardFramebufferEXT is supported
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@since v0.99.2
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*/
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bool supportsDiscardFramebuffer() const;
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/** Whether or not shareable VAOs are supported.
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@since v2.0.0
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*/
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bool supportsShareableVAO() const;
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/** returns whether or not an OpenGL is supported */
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bool checkForGLExtension(const std::string &searchName) const;
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bool init();
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/** returns the value of a given key as a double */
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const Value& getValue(const std::string& key, const Value& defaultValue = Value::Null) const;
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/** sets a new key/value pair in the configuration dictionary */
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void setValue(const std::string& key, const Value& value);
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/** returns the Configuration info */
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std::string getInfo() const;
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/** gathers OpenGL / GPU information */
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void gatherGPUInfo();
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/** Loads a config file. If the keys are already present, then they are going to be replaced. Otherwise the new keys are added. */
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void loadConfigFile(const std::string& filename);
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private:
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Configuration(void);
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static Configuration *s_sharedConfiguration;
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static std::string s_configfile;
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protected:
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GLint _maxTextureSize;
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GLint _maxModelviewStackDepth;
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bool _supportsPVRTC;
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bool _supportsETC1;
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bool _supportsS3TC;
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bool _supportsATITC;
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bool _supportsNPOT;
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bool _supportsBGRA8888;
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bool _supportsDiscardFramebuffer;
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bool _supportsShareableVAO;
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GLint _maxSamplesAllowed;
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GLint _maxTextureUnits;
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char * _glExtensions;
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ValueMap _valueDict;
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};
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// end of global group
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/// @}
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NS_CC_END
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#endif // __CCCONFIGURATION_H__
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