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 _ShaderSubRenderState_ 00028 #define _ShaderSubRenderState_ 00029 00030 #include "OgreShaderPrerequisites.h" 00031 #include "OgreGpuProgram.h" 00032 #include "OgreSceneManager.h" 00033 #include "OgreMaterialSerializer.h" 00034 #include "OgreScriptCompiler.h" 00035 #include "OgreShaderScriptTranslator.h" 00036 00037 00038 namespace Ogre { 00039 namespace RTShader { 00040 00048 typedef SharedPtr<SubRenderStateAccessor> SubRenderStateAccessorPtr; 00049 00050 00056 class _OgreRTSSExport SubRenderState : public RTShaderSystemAlloc 00057 { 00058 00059 // Interface. 00060 public: 00061 00063 SubRenderState(); 00064 00066 virtual ~SubRenderState(); 00067 00068 00073 virtual const String& getType() const = 0; 00074 00075 00081 virtual int getExecutionOrder() const = 0; 00082 00083 00087 virtual void copyFrom(const SubRenderState& rhs) = 0; 00088 00092 SubRenderState& operator= (const SubRenderState& rhs); 00093 00100 virtual bool createCpuSubPrograms(ProgramSet* programSet); 00101 00111 virtual void updateGpuProgramsParams(Renderable* rend, Pass* pass, const AutoParamDataSource* source, const LightList* pLightList) { } 00112 00120 virtual bool preAddToRenderState(const RenderState* renderState, Pass* srcPass, Pass* dstPass) { return true; } 00121 00125 SubRenderStateAccessorPtr getAccessor(); 00126 00130 SubRenderStateAccessorPtr getAccessor() const; 00131 00132 // Protected methods 00133 protected: 00134 00139 virtual bool resolveParameters(ProgramSet* programSet); 00140 00145 virtual bool resolveDependencies(ProgramSet* programSet); 00146 00151 virtual bool addFunctionInvocations(ProgramSet* programSet); 00152 00153 // Attributes. 00154 private: 00155 // The accessor of this instance. 00156 mutable SubRenderStateAccessorPtr mThisAccessor; 00157 // The accessor of the source instance which used as base to create this instance. 00158 SubRenderStateAccessorPtr mOtherAccessor; 00159 00160 }; 00161 00162 typedef vector<SubRenderState*>::type SubRenderStateList; 00163 typedef SubRenderStateList::iterator SubRenderStateListIterator; 00164 typedef SubRenderStateList::const_iterator SubRenderStateListConstIterator; 00165 00166 typedef set<SubRenderState*>::type SubRenderStateSet; 00167 typedef SubRenderStateSet::iterator SubRenderStateSetIterator; 00168 typedef SubRenderStateSet::const_iterator SubRenderStateSetConstIterator; 00169 00170 00177 class _OgreRTSSExport SubRenderStateAccessor 00178 { 00179 public: 00182 void addSubRenderStateInstance(SubRenderState* subRenderState) const 00183 { 00184 mSubRenderStateInstancesSet.insert(subRenderState); 00185 } 00186 00189 void removeSubRenderStateInstance(SubRenderState* subRenderState) const 00190 { 00191 SubRenderStateSetIterator itFind = mSubRenderStateInstancesSet.find(subRenderState); 00192 00193 if (itFind != mSubRenderStateInstancesSet.end()) 00194 { 00195 mSubRenderStateInstancesSet.erase(itFind); 00196 } 00197 } 00198 00200 SubRenderStateSet& getSubRenderStateInstanceSet() { return mSubRenderStateInstancesSet; } 00201 00203 const SubRenderStateSet& getSubRenderStateInstanceSet() const { return mSubRenderStateInstancesSet; } 00204 00205 protected: 00208 SubRenderStateAccessor(const SubRenderState* templateSubRenderState) : mTemplateSubRenderState(templateSubRenderState) {} 00209 00210 00211 protected: 00212 const SubRenderState* mTemplateSubRenderState; 00213 mutable SubRenderStateSet mSubRenderStateInstancesSet; 00214 00215 private: 00216 friend class SubRenderState; 00217 00218 }; 00219 00220 00232 class _OgreRTSSExport SubRenderStateFactory : public RTShaderSystemAlloc 00233 { 00234 00235 public: 00236 SubRenderStateFactory() {} 00237 virtual ~SubRenderStateFactory(); 00238 00244 virtual const String& getType() const = 0; 00245 00248 virtual SubRenderState* createInstance(); 00249 00257 virtual SubRenderState* createInstance(ScriptCompiler* compiler, PropertyAbstractNode* prop, Pass* pass, SGScriptTranslator* translator) { return NULL; } 00258 00266 virtual SubRenderState* createInstance(ScriptCompiler* compiler, PropertyAbstractNode* prop, TextureUnitState* texState, SGScriptTranslator* translator) { return NULL; } 00267 00272 virtual SubRenderState* createOrRetrieveInstance(SGScriptTranslator* translator); 00273 00277 virtual void destroyInstance(SubRenderState* subRenderState); 00278 00281 virtual void destroyAllInstances(); 00282 00292 virtual void writeInstance(MaterialSerializer* ser, SubRenderState* subRenderState, Pass* srcPass, Pass* dstPass) {} 00293 00303 virtual void writeInstance(MaterialSerializer* ser, SubRenderState* subRenderState, const TextureUnitState* srcTextureUnit, const TextureUnitState* dstTextureUnit) {} 00304 protected: 00309 virtual SubRenderState* createInstanceImpl() = 0; 00310 00311 // Attributes. 00312 protected: 00313 // List of all sub render states instances this factory created. 00314 SubRenderStateSet mSubRenderStateList; 00315 }; 00316 00320 } 00321 } 00322 00323 #endif 00324
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 07:27:24