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) 2000-2009 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 (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 TextureUnitState* mTextureUnitState; // Texture unit state. 00097 const Frustum* mTextureProjector; // Texture projector. 00098 unsigned short mTextureSamplerIndex; // Texture sampler index. 00099 GpuConstantType mTextureSamplerType; // Texture sampler index. 00100 GpuConstantType mVSInTextureCoordinateType; // Vertex shader input texture coordinate type. 00101 GpuConstantType mVSOutTextureCoordinateType; // Vertex shader output texture coordinates type. 00102 TexCoordCalcMethod mTexCoordCalcMethod; // Texture coordinates calculation method. 00103 UniformParameterPtr mTextureMatrix; // Texture matrix parameter. 00104 UniformParameterPtr mTextureViewProjImageMatrix; // Texture View Projection Image space matrix parameter. 00105 UniformParameterPtr mTextureSampler; // Texture sampler parameter. 00106 ParameterPtr mVSInputTexCoord; // Vertex shader input texture coordinates parameter. 00107 ParameterPtr mVSOutputTexCoord; // Vertex shader output texture coordinates parameter. 00108 ParameterPtr mPSInputTexCoord; // Pixel shader input texture coordinates parameter. 00109 }; 00110 00111 typedef vector<TextureUnitParams>::type TextureUnitParamsList; 00112 typedef TextureUnitParamsList::iterator TextureUnitParamsIterator; 00113 typedef TextureUnitParamsList::const_iterator TextureUnitParamsConstIterator; 00114 00115 // Protected methods 00116 protected: 00117 00122 void setTextureUnitCount (size_t count); 00123 00127 size_t getTextureUnitCount () const { return mTextureUnitParamsList.size(); } 00128 00134 void setTextureUnit (unsigned short index, TextureUnitState* textureUnitState); 00135 00139 virtual bool resolveParameters (ProgramSet* programSet); 00140 00144 bool resolveUniformParams (TextureUnitParams* textureUnitParams, ProgramSet* programSet); 00145 00149 bool resolveFunctionsParams (TextureUnitParams* textureUnitParams, ProgramSet* programSet); 00150 00154 virtual bool resolveDependencies (ProgramSet* programSet); 00155 00159 virtual bool addFunctionInvocations (ProgramSet* programSet); 00160 00161 00165 bool addVSFunctionInvocations(TextureUnitParams* textureUnitParams, Function* vsMain); 00166 00170 bool addPSFunctionInvocations(TextureUnitParams* textureUnitParams, Function* psMain, int& internalCounter); 00171 00172 void addPSArgumentInvocations(Function* psMain, 00173 ParameterPtr arg, 00174 ParameterPtr texel, 00175 int samplerIndex, 00176 LayerBlendSource blendSrc, 00177 const ColourValue& colourValue, 00178 Real alphaValue, 00179 bool isAlphaArgument, 00180 const int groupOrder, 00181 int& internalCounter); 00182 00183 void addPSBlendInvocations(Function* psMain, 00184 ParameterPtr arg1, 00185 ParameterPtr arg2, 00186 ParameterPtr texel, 00187 int samplerIndex, 00188 const LayerBlendModeEx& blendMode, 00189 const int groupOrder, 00190 int& internalCounter, 00191 int targetChannels); 00192 00196 TexCoordCalcMethod getTexCalcMethod (TextureUnitState* textureUnitState); 00197 00201 bool needsTextureMatrix (TextureUnitState* textureUnitState); 00202 00203 // Attributes. 00204 protected: 00205 TextureUnitParamsList mTextureUnitParamsList; // Texture units list. 00206 UniformParameterPtr mWorldMatrix; // World matrix parameter. 00207 UniformParameterPtr mWorldITMatrix; // World inverse transpose matrix parameter. 00208 UniformParameterPtr mViewMatrix; // View matrix parameter. 00209 ParameterPtr mVSInputNormal; // Vertex shader input normal parameter. 00210 ParameterPtr mVSInputPos; // Vertex shader input position parameter. 00211 ParameterPtr mPSOutDiffuse; // Pixel shader output colour. 00212 ParameterPtr mPSDiffuse; // Pixel shader diffuse colour. 00213 ParameterPtr mPSSpecular; // Pixel shader specular colour. 00214 }; 00215 00216 00221 class _OgreRTSSExport FFPTexturingFactory : public SubRenderStateFactory 00222 { 00223 public: 00224 00228 virtual const String& getType () const; 00229 00233 virtual SubRenderState* createInstance (ScriptCompiler* compiler, PropertyAbstractNode* prop, Pass* pass); 00234 00238 virtual void writeInstance (MaterialSerializer* ser, SubRenderState* subRenderState, Pass* srcPass, Pass* dstPass); 00239 00240 00241 protected: 00242 00246 virtual SubRenderState* createInstanceImpl (); 00247 00248 00249 }; 00250 00255 } 00256 } 00257 00258 #endif 00259 #endif 00260
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Last modified Wed Nov 3 2010 19:24:52