OgreShaderProgramManager.h
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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 Permission is hereby granted, free of charge, to any person obtaining a copy
00009 of this software and associated documentation files (the "Software"), to deal
00010 in the Software without restriction, including without limitation the rights
00011 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00012 copies of the Software, and to permit persons to whom the Software is
00013 furnished to do so, subject to the following conditions:
00014 
00015 The above copyright notice and this permission notice shall be included in
00016 all copies or substantial portions of the Software.
00017 
00018 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00019 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00020 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00021 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00022 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00023 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00024 THE SOFTWARE.
00025 -----------------------------------------------------------------------------
00026 */
00027 #ifndef _ShaderProgramManager_
00028 #define _ShaderProgramManager_
00029 
00030 #include "OgreShaderPrerequisites.h"
00031 #include "OgreShaderProgram.h"
00032 #include "OgreShaderProgramWriter.h"
00033 
00034 namespace Ogre {    
00035 namespace RTShader {
00036 
00046 class _OgreRTSSExport ProgramManager : public Singleton<ProgramManager>, public RTShaderSystemAlloc
00047 {
00048 // Interface.
00049 public:
00050 
00052     ProgramManager();
00053 
00055     ~ProgramManager();
00056 
00057 
00073     static ProgramManager& getSingleton();  
00074 
00090     static ProgramManager* getSingletonPtr();
00091 
00096     void acquirePrograms(Pass* pass, TargetRenderState* renderState);
00097 
00102     void releasePrograms(Pass* pass, TargetRenderState* renderState);
00103 
00106     void flushGpuProgramsCache();
00107 
00108 protected:
00109 
00110     //-----------------------------------------------------------------------------
00111     typedef map<String, GpuProgramPtr>::type            GpuProgramsMap;
00112     typedef GpuProgramsMap::iterator                    GpuProgramsMapIterator;
00113     typedef GpuProgramsMap::const_iterator              GpuProgramsMapConstIterator;
00114 
00115     //-----------------------------------------------------------------------------
00116     typedef set<Program*>::type                         ProgramList;
00117     typedef ProgramList::iterator                       ProgramListIterator;
00118     typedef map<String, ProgramWriter*>::type           ProgramWriterMap;
00119     typedef ProgramWriterMap::iterator                  ProgramWriterIterator;
00120     typedef vector<ProgramWriterFactory*>::type         ProgramWriterFactoryList;
00121     
00122     //-----------------------------------------------------------------------------
00123     typedef map<String, ProgramProcessor*>::type        ProgramProcessorMap;
00124     typedef ProgramProcessorMap::iterator               ProgramProcessorIterator;
00125     typedef ProgramProcessorMap::const_iterator         ProgramProcessorConstIterator;
00126     typedef vector<ProgramProcessor*>::type             ProgramProcessorList;
00127 
00128     
00129 protected:
00131     void createDefaultProgramProcessors();
00132     
00134     void destroyDefaultProgramProcessors();
00135 
00137     void createDefaultProgramWriterFactories();
00138 
00140     void destroyDefaultProgramWriterFactories();
00141 
00143     void destroyProgramWriters();
00144 
00148     Program* createCpuProgram(GpuProgramType type);
00149 
00153     void destroyCpuProgram(Program* shaderProgram);
00154 
00158     bool createGpuPrograms(ProgramSet* programSet);
00159 
00168     GpuProgramPtr createGpuProgram(Program* shaderProgram, 
00169         ProgramWriter* programWriter,
00170         const String& language,
00171         const String& profiles,
00172         const StringVector& profilesList,
00173         const String& cachePath);
00174 
00179     void addProgramProcessor(ProgramProcessor* processor);
00180 
00185     void removeProgramProcessor(ProgramProcessor* processor);
00186 
00191     void destroyGpuProgram(GpuProgramPtr& gpuProgram);
00192 
00196     void flushGpuProgramsCache(GpuProgramsMap& gpuProgramsMap);
00197     
00199     size_t getVertexShaderCount() const { return mVertexShaderMap.size(); }
00200 
00202     size_t getFragmentShaderCount() const { return mFragmentShaderMap.size(); }
00203 
00205     void synchronizePixelnToBeVertexOut(ProgramSet* programSet);
00206 
00208     void bindUniformParameters(Program* pCpuProgram, const GpuProgramParametersSharedPtr& passParams);
00209 
00210 
00211 protected:
00212     
00213 
00214 protected:
00215     // CPU programs list.                   
00216     ProgramList mCpuProgramsList;
00217     // Map between target language and shader program writer.                   
00218     ProgramWriterMap mProgramWritersMap;
00219     // Map between target language and shader program processor.    
00220     ProgramProcessorMap mProgramProcessorsMap;
00221     // Holds standard shader writer factories
00222     ProgramWriterFactoryList mProgramWriterFactories;
00223     // The generated vertex shaders.
00224     GpuProgramsMap mVertexShaderMap;
00225     // The generated fragment shaders.
00226     GpuProgramsMap mFragmentShaderMap;
00227     // The default program processors.
00228     ProgramProcessorList mDefaultProgramProcessors;
00229 
00230 private:
00231     friend class ProgramSet;
00232     friend class TargetRenderState;
00233     friend class ShaderGenerator;
00234 };
00235 
00239 }
00240 }
00241 
00242 #endif
00243 

Copyright © 2012 Torus Knot Software Ltd
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This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun Sep 2 2012 07:27:23