00001 /* 00002 ----------------------------------------------------------------------------- 00003 This source file is part of OGRE 00004 (Object-oriented Graphics Rendering Engine) 00005 For the latest info, see http://www.ogre3d.org/ 00006 00007 Copyright (c) 2000-2012 Torus Knot Software Ltd 00008 00009 Permission is hereby granted, free of charge, to any person obtaining a copy 00010 of this software and associated documentation files (the "Software"), to deal 00011 in the Software without restriction, including without limitation the rights 00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00013 copies of the Software, and to permit persons to whom the Software is 00014 furnished to do so, subject to the following conditions: 00015 00016 The above copyright notice and this permission notice shall be included in 00017 all copies or substantial portions of the Software. 00018 00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00025 THE SOFTWARE. 00026 ----------------------------------------------------------------------------- 00027 */ 00028 #ifndef __OgreGLES2FBORTT_H__ 00029 #define __OgreGLES2FBORTT_H__ 00030 00031 #include "OgreGLES2RenderTexture.h" 00032 #include "OgreGLES2Context.h" 00033 #include "OgreGLES2FrameBufferObject.h" 00034 00035 namespace Ogre { 00036 class GLES2FBOManager; 00037 class GLES2RenderBuffer; 00038 00041 class _OgreGLES2Export GLES2FBORenderTexture: public GLES2RenderTexture 00042 { 00043 public: 00044 GLES2FBORenderTexture(GLES2FBOManager *manager, const String &name, const GLES2SurfaceDesc &target, bool writeGamma, uint fsaa); 00045 00046 virtual void getCustomAttribute(const String& name, void* pData); 00047 00049 virtual void swapBuffers(bool waitForVSync = true); 00050 00052 virtual bool attachDepthBuffer( DepthBuffer *depthBuffer ); 00053 virtual void detachDepthBuffer(); 00054 virtual void _detachDepthBuffer(); 00055 protected: 00056 GLES2FrameBufferObject mFB; 00057 }; 00058 00061 class _OgreGLES2Export GLES2FBOManager: public GLES2RTTManager 00062 { 00063 public: 00064 GLES2FBOManager(); 00065 ~GLES2FBOManager(); 00066 00070 void bind(RenderTarget *target); 00071 00074 void unbind(RenderTarget *target) {}; 00075 00078 void getBestDepthStencil(GLenum internalFormat, GLenum *depthFormat, GLenum *stencilFormat); 00079 00082 virtual GLES2FBORenderTexture *createRenderTexture(const String &name, 00083 const GLES2SurfaceDesc &target, bool writeGamma, uint fsaa); 00084 00087 virtual MultiRenderTarget* createMultiRenderTarget(const String & name); 00088 00091 GLES2SurfaceDesc requestRenderBuffer(GLenum format, size_t width, size_t height, uint fsaa); 00095 void requestRenderBuffer(const GLES2SurfaceDesc &surface); 00098 void releaseRenderBuffer(const GLES2SurfaceDesc &surface); 00099 00102 bool checkFormat(PixelFormat format) { return mProps[format].valid; } 00103 00106 GLuint getTemporaryFBO() { return mTempFBO; } 00107 private: 00110 struct FormatProperties 00111 { 00112 bool valid; // This format can be used as RTT (FBO) 00113 00116 struct Mode 00117 { 00118 size_t depth; // Depth format (0=no depth) 00119 size_t stencil; // Stencil format (0=no stencil) 00120 }; 00121 00122 vector<Mode>::type modes; 00123 }; 00126 FormatProperties mProps[PF_COUNT]; 00127 00132 struct RBFormat 00133 { 00134 RBFormat(GLenum inFormat, size_t inWidth, size_t inHeight, uint fsaa): 00135 format(inFormat), width(inWidth), height(inHeight), samples(fsaa) 00136 {} 00137 GLenum format; 00138 size_t width; 00139 size_t height; 00140 uint samples; 00141 // Overloaded comparison operator for usage in map 00142 bool operator < (const RBFormat &other) const 00143 { 00144 if(format < other.format) 00145 { 00146 return true; 00147 } 00148 else if(format == other.format) 00149 { 00150 if(width < other.width) 00151 { 00152 return true; 00153 } 00154 else if(width == other.width) 00155 { 00156 if(height < other.height) 00157 return true; 00158 else if (height == other.height) 00159 { 00160 if (samples < other.samples) 00161 return true; 00162 } 00163 } 00164 } 00165 return false; 00166 } 00167 }; 00168 struct RBRef 00169 { 00170 RBRef(){} 00171 RBRef(GLES2RenderBuffer *inBuffer): 00172 buffer(inBuffer), refcount(1) 00173 { } 00174 GLES2RenderBuffer *buffer; 00175 size_t refcount; 00176 }; 00177 typedef map<RBFormat, RBRef>::type RenderBufferMap; 00178 RenderBufferMap mRenderBufferMap; 00179 // map(format, sizex, sizey) -> [GLSurface*,refcount] 00180 00183 GLuint mTempFBO; 00184 00186 void detectFBOFormats(); 00187 GLuint _tryFormat(GLenum depthFormat, GLenum stencilFormat); 00188 bool _tryPackedFormat(GLenum packedFormat); 00189 }; 00190 } 00191 00192 #endif
Copyright © 2012 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun Sep 2 2012 07:27:21