OgreShaderRenderState.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 _ShaderRenderState_
00028 #define _ShaderRenderState_
00029 
00030 #include "OgreShaderPrerequisites.h"
00031 #include "OgreShaderSubRenderState.h"
00032 #include "OgreSharedPtr.h"
00033 
00034 namespace Ogre {
00035 namespace RTShader {
00036 
00050 class _OgreRTSSExport RenderState : public RTShaderSystemAlloc
00051 {
00052 
00053     // Interface.
00054 public:
00055 
00057     RenderState();
00058 
00060     virtual ~RenderState();
00061 
00063     void reset();
00064 
00068     void addTemplateSubRenderState(SubRenderState* subRenderState);
00069 
00073     void removeTemplateSubRenderState(SubRenderState* subRenderState);
00074 
00076     const SubRenderStateList& getTemplateSubRenderStateList() const { return mSubRenderStateList; }
00077 
00086     void setLightCount(const int lightCount[3]);
00087 
00096     void getLightCount(int lightCount[3]) const;
00097 
00104     void setLightCountAutoUpdate(bool autoUpdate) { mLightCountAutoUpdate = autoUpdate; }
00105 
00110     bool getLightCountAutoUpdate() const { return mLightCountAutoUpdate; }
00111 
00112     
00113 
00114 
00115     // Attributes.
00116 protected:
00117     // The sub render states list.  
00118     SubRenderStateList mSubRenderStateList;
00119     // The light count per light type definition.
00120     int mLightCount[3];
00121     // True if light count was explicitly set.
00122     bool mLightCountAutoUpdate;
00123 
00124 private:
00125     friend class ProgramManager;
00126     friend class FFPRenderStateBuilder;
00127 };
00128 
00129 
00130 typedef vector<RenderState*>::type              RenderStateList;
00131 typedef RenderStateList::iterator               RenderStateIterator;
00132 typedef RenderStateList::const_iterator         RenderStateConstIterator;
00133 
00134 
00139 class TargetRenderState : public RenderState
00140 {
00141 
00142 // Interface.
00143 public:
00144     
00146     TargetRenderState();
00147 
00149     virtual ~TargetRenderState();
00150 
00157     void link(const RenderState& other, Pass* srcPass, Pass* dstPass);
00158 
00165     void updateGpuProgramsParams(Renderable* rend, Pass* pass, const AutoParamDataSource* source, const LightList* pLightList);
00166     
00167 // Protected methods
00168 protected:
00169 
00171     void sortSubRenderStates();
00172 
00174     static int sSubRenderStateCompare(const void * p0, const void *p1);
00175 
00176     
00179     bool createCpuPrograms();
00180 
00183     ProgramSet* createProgramSet();
00184 
00185     /* Destroy the program set of this render state. */
00186     void destroyProgramSet();
00187 
00190     ProgramSet* getProgramSet() { return mProgramSet; }
00191 
00195     void addSubRenderStateInstance(SubRenderState* subRenderState);
00196 
00200     void removeSubRenderStateInstance(SubRenderState* subRenderState);
00201 
00202     
00203 // Attributes.
00204 protected:
00205     // Tells if the list of the sub render states is sorted.
00206     bool mSubRenderStateSortValid;
00207     // The program set of this RenderState.
00208     ProgramSet* mProgramSet;
00209     
00210 
00211 private:
00212     friend class ProgramManager;
00213     friend class FFPRenderStateBuilder;
00214 };
00215 
00216 
00220 }
00221 }
00222 
00223 #endif
00224 

Copyright © 2012 Torus Knot Software Ltd
Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun Sep 2 2012 07:27:24