mirror of https://github.com/axmolengine/axmol.git
87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
/****************************************************************************
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Copyright (c) 2010 cocos2d-x.org
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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 "Cocos2dTypes.h"
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#include "cocoa/NSObject.h"
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#include <GLES/gl.h>
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#include <string>
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/**
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CCConfiguration contains some openGL variables
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@since v0.99.0
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*/
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class CCConfiguration : public NSObject
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{
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protected:
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GLint m_nMaxTextureSize;
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GLint m_nMaxModelviewStackDepth;
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BOOL m_bSupportsPVRTC;
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BOOL m_bSupportsNPOT;
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BOOL m_bSupportsBGRA8888;
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BOOL m_bSupportsDiscardFramebuffer;
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public:
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CCConfiguration(void);
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// OpenGL Max texture size.
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INT32 getMaxTextureSize(void);
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// OpenGL Max Modelview Stack Depth
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INT32 getMaxModelviewStackDepth(void);
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/** Whether or not the GPU supports NPOT (Non Power Of Two) textures.
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NPOT textures have the following limitations:
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- They can't have mipmaps
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- They only accept GL_CLAMP_TO_EDGE in GL_TEXTURE_WRAP_{S,T}
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@since v0.99.2
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*/
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BOOL isSupportsNPOT(void);
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// Whether or not PVR Texture Compressed is supported
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BOOL isSupportsPVRTC(void);
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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 isSupportsBGRA8888(void);
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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 isSupportsDiscardFramebuffer(void);
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// returns whether or not an OpenGL is supported
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BOOL checkForGLExtension(const std::string &searchName);
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public:
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// returns a shared instance of the CCConfiguration
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static CCConfiguration* sharedConfiguration(void);
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};
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#endif // __CCCONFIGURATION_H__
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