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 _ShaderFFPTextureStage_ 00028 #define _ShaderFFPTextureStage_ 00029 00030 #include "OgreShaderPrerequisites.h" 00031 #ifdef RTSHADER_SYSTEM_BUILD_CORE_SHADERS 00032 #include "OgreShaderSubRenderState.h" 00033 #include "OgreShaderParameter.h" 00034 #include "OgreRenderSystem.h" 00035 00036 namespace Ogre { 00037 namespace RTShader { 00038 00039 00054 class _OgreRTSSExport FFPTexturing : public SubRenderState 00055 { 00056 00057 // Interface. 00058 public: 00059 00061 FFPTexturing(); 00062 00066 virtual const String& getType() const; 00067 00071 virtual int getExecutionOrder() const; 00072 00076 virtual void updateGpuProgramsParams(Renderable* rend, Pass* pass, const AutoParamDataSource* source, const LightList* pLightList); 00077 00081 virtual void copyFrom(const SubRenderState& rhs); 00082 00086 virtual bool preAddToRenderState(const RenderState* renderState, Pass* srcPass, Pass* dstPass); 00087 00088 static String Type; 00089 00090 // Protected types: 00091 protected: 00092 00093 // Per texture unit parameters. 00094 struct _OgreRTSSExport TextureUnitParams 00095 { 00096 // Texture unit state. 00097 TextureUnitState* mTextureUnitState; 00098 // Texture projector. 00099 const Frustum* mTextureProjector; 00100 // Texture sampler index. 00101 unsigned short mTextureSamplerIndex; 00102 // Texture sampler index. 00103 GpuConstantType mTextureSamplerType; 00104 // Vertex shader input texture coordinate type. 00105 GpuConstantType mVSInTextureCoordinateType; 00106 // Vertex shader output texture coordinates type. 00107 GpuConstantType mVSOutTextureCoordinateType; 00108 // Texture coordinates calculation method. 00109 TexCoordCalcMethod mTexCoordCalcMethod; 00110 // Texture matrix parameter. 00111 UniformParameterPtr mTextureMatrix; 00112 // Texture View Projection Image space matrix parameter. 00113 UniformParameterPtr mTextureViewProjImageMatrix; 00114 // Texture sampler parameter. 00115 UniformParameterPtr mTextureSampler; 00116 // Vertex shader input texture coordinates parameter. 00117 ParameterPtr mVSInputTexCoord; 00118 // Vertex shader output texture coordinates parameter. 00119 ParameterPtr mVSOutputTexCoord; 00120 // Pixel shader input texture coordinates parameter. 00121 ParameterPtr mPSInputTexCoord; 00122 }; 00123 00124 typedef vector<TextureUnitParams>::type TextureUnitParamsList; 00125 typedef TextureUnitParamsList::iterator TextureUnitParamsIterator; 00126 typedef TextureUnitParamsList::const_iterator TextureUnitParamsConstIterator; 00127 00128 // Protected methods 00129 protected: 00130 00135 void setTextureUnitCount(size_t count); 00136 00140 size_t getTextureUnitCount() const { return mTextureUnitParamsList.size(); } 00141 00147 void setTextureUnit(unsigned short index, TextureUnitState* textureUnitState); 00148 00152 virtual bool resolveParameters(ProgramSet* programSet); 00153 00157 bool resolveUniformParams(TextureUnitParams* textureUnitParams, ProgramSet* programSet); 00158 00162 bool resolveFunctionsParams(TextureUnitParams* textureUnitParams, ProgramSet* programSet); 00163 00167 virtual bool resolveDependencies(ProgramSet* programSet); 00168 00172 virtual bool addFunctionInvocations(ProgramSet* programSet); 00173 00174 00178 bool addVSFunctionInvocations(TextureUnitParams* textureUnitParams, Function* vsMain); 00179 00183 bool addPSFunctionInvocations(TextureUnitParams* textureUnitParams, Function* psMain, int& internalCounter); 00184 00188 virtual void addPSSampleTexelInvocation(TextureUnitParams* textureUnitParams, Function* psMain, 00189 const ParameterPtr& texel, int groupOrder, int& internalCounter); 00190 00191 virtual void addPSArgumentInvocations(Function* psMain, ParameterPtr arg, ParameterPtr texel, 00192 int samplerIndex, LayerBlendSource blendSrc, const ColourValue& colourValue, Real alphaValue, 00193 bool isAlphaArgument, const int groupOrder, int& internalCounter); 00194 00195 virtual void addPSBlendInvocations(Function* psMain, ParameterPtr arg1, ParameterPtr arg2, 00196 ParameterPtr texel,int samplerIndex, const LayerBlendModeEx& blendMode, 00197 const int groupOrder, int& internalCounter, int targetChannels); 00198 00202 TexCoordCalcMethod getTexCalcMethod(TextureUnitState* textureUnitState); 00203 00207 bool needsTextureMatrix(TextureUnitState* textureUnitState); 00208 00212 virtual bool isProcessingNeeded(TextureUnitState* texUnitState); 00213 00214 00215 // Attributes. 00216 protected: 00217 // Texture units list. 00218 TextureUnitParamsList mTextureUnitParamsList; 00219 // World matrix parameter. 00220 UniformParameterPtr mWorldMatrix; 00221 // World inverse transpose matrix parameter. 00222 UniformParameterPtr mWorldITMatrix; 00223 // View matrix parameter. 00224 UniformParameterPtr mViewMatrix; 00225 // Vertex shader input normal parameter. 00226 ParameterPtr mVSInputNormal; 00227 // Vertex shader input position parameter. 00228 ParameterPtr mVSInputPos; 00229 // Pixel shader output colour. 00230 ParameterPtr mPSOutDiffuse; 00231 // Pixel shader diffuse colour. 00232 ParameterPtr mPSDiffuse; 00233 // Pixel shader specular colour. 00234 ParameterPtr mPSSpecular; 00235 }; 00236 00237 00242 class _OgreRTSSExport FFPTexturingFactory : public SubRenderStateFactory 00243 { 00244 public: 00245 00249 virtual const String& getType() const; 00250 00254 virtual SubRenderState* createInstance(ScriptCompiler* compiler, PropertyAbstractNode* prop, Pass* pass, SGScriptTranslator* translator); 00255 00259 virtual void writeInstance(MaterialSerializer* ser, SubRenderState* subRenderState, Pass* srcPass, Pass* dstPass); 00260 00261 00262 protected: 00263 00267 virtual SubRenderState* createInstanceImpl(); 00268 00269 00270 }; 00271 00276 } 00277 } 00278 00279 #endif 00280 #endif 00281
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 07:27:23