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 00009 Permission is hereby granted, free of charge, to any person obtaining a copy 00010 of this software and associated documentation files (the "Software"), to deal 00011 in the Software without restriction, including without limitation the rights 00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00013 copies of the Software, and to permit persons to whom the Software is 00014 furnished to do so, subject to the following conditions: 00015 00016 The above copyright notice and this permission notice shall be included in 00017 all copies or substantial portions of the Software. 00018 00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00025 THE SOFTWARE. 00026 ----------------------------------------------------------------------------- 00027 */ 00028 #ifndef _OgreShaderExLayeredBlending_ 00029 #define _OgreShaderExLayeredBlending_ 00030 00031 #include "OgreShaderPrerequisites.h" 00032 #ifdef RTSHADER_SYSTEM_BUILD_EXT_SHADERS 00033 #include "OgreShaderFFPTexturing.h" 00034 #include "OgreShaderProgramSet.h" 00035 #include "OgreShaderParameter.h" 00036 #include "OgreShaderFunction.h" 00037 #include "OgreShaderSubRenderState.h" 00038 00039 namespace Ogre { 00040 namespace RTShader { 00041 00042 #define SGX_LIB_LAYEREDBLENDING "SGXLib_LayeredBlending" 00043 00047 class _OgreRTSSExport LayeredBlending : public FFPTexturing 00048 { 00049 public: 00050 enum BlendMode 00051 { 00052 LB_Invalid = -1, 00053 LB_FFPBlend, 00054 LB_BlendNormal, 00055 LB_BlendLighten, 00056 LB_BlendDarken, 00057 LB_BlendMultiply, 00058 LB_BlendAverage, 00059 LB_BlendAdd, 00060 LB_BlendSubtract, 00061 LB_BlendDifference, 00062 LB_BlendNegation, 00063 LB_BlendExclusion, 00064 LB_BlendScreen, 00065 LB_BlendOverlay, 00066 LB_BlendSoftLight, 00067 LB_BlendHardLight, 00068 LB_BlendColorDodge, 00069 LB_BlendColorBurn, 00070 LB_BlendLinearDodge, 00071 LB_BlendLinearBurn, 00072 LB_BlendLinearLight, 00073 LB_BlendVividLight, 00074 LB_BlendPinLight, 00075 LB_BlendHardMix, 00076 LB_BlendReflect, 00077 LB_BlendGlow, 00078 LB_BlendPhoenix, 00079 LB_BlendSaturation, 00080 LB_BlendColor, 00081 LB_BlendLuminosity, 00082 LB_MaxBlendModes 00083 }; 00084 00085 enum SourceModifier 00086 { 00087 SM_Invalid = -1, 00088 SM_None, 00089 SM_Source1Modulate, 00090 SM_Source2Modulate, 00091 SM_Source1InvModulate, 00092 SM_Source2InvModulate, 00093 SM_MaxSourceModifiers 00094 }; 00095 00096 struct TextureBlend 00097 { 00098 TextureBlend() : blendMode(LB_Invalid), sourceModifier(SM_Invalid), customNum(0) {} 00099 00100 //The blend mode to use 00101 BlendMode blendMode; 00102 //The source modification to use 00103 SourceModifier sourceModifier; 00104 // The number of the custom param controlling the source modification 00105 int customNum; 00106 //The parameter controlling the source modification 00107 ParameterPtr modControlParam; 00108 }; 00109 00110 00112 LayeredBlending(); 00113 00117 virtual const Ogre::String& getType () const; 00118 00119 00125 void setBlendMode(unsigned short index, BlendMode mode); 00126 00130 BlendMode getBlendMode(unsigned short index) const; 00131 00132 00133 00139 void setSourceModifier(unsigned short index, SourceModifier modType, int customNum); 00140 00147 bool getSourceModifier(unsigned short index, SourceModifier& , int& customNum) const; 00148 00152 virtual void copyFrom(const SubRenderState& rhs); 00153 00154 static String Type; 00155 00156 // Protected methods 00157 protected: 00158 00162 virtual bool resolveParameters(ProgramSet* programSet); 00163 00167 virtual bool resolveDependencies(Ogre::RTShader::ProgramSet* programSet); 00168 00169 00170 virtual void addPSBlendInvocations(Function* psMain, 00171 ParameterPtr arg1, 00172 ParameterPtr arg2, 00173 ParameterPtr texel, 00174 int samplerIndex, 00175 const LayerBlendModeEx& blendMode, 00176 const int groupOrder, 00177 int& internalCounter, 00178 int targetChannels); 00183 void addPSModifierInvocation(Function* psMain, 00184 int samplerIndex, 00185 ParameterPtr arg1, 00186 ParameterPtr arg2, 00187 const int groupOrder, 00188 int& internalCounter, 00189 int targetChannels); 00190 00191 // Attributes. 00192 protected: 00193 vector<TextureBlend>::type mTextureBlends; 00194 00195 }; 00196 00197 00198 00203 class LayeredBlendingFactory : public SubRenderStateFactory 00204 { 00205 public: 00206 00210 virtual const String& getType() const; 00211 00215 virtual SubRenderState* createInstance(ScriptCompiler* compiler, PropertyAbstractNode* prop, TextureUnitState* texState, SGScriptTranslator* translator); 00216 00220 virtual void writeInstance(MaterialSerializer* ser, SubRenderState* subRenderState, const TextureUnitState* srcTextureUnit, const TextureUnitState* dstTextureUnit); 00221 00222 00223 protected: 00224 00228 virtual SubRenderState* createInstanceImpl(); 00229 00233 LayeredBlending::BlendMode stringToBlendMode(const String &strValue); 00237 String blendModeToString(LayeredBlending::BlendMode blendMode); 00238 00242 LayeredBlending::SourceModifier stringToSourceModifier(const String &strValue); 00243 00247 String sourceModifierToString(LayeredBlending::SourceModifier modifier); 00248 00254 LayeredBlending* createOrRetrieveSubRenderState(SGScriptTranslator* translator); 00255 }; 00256 00257 } 00258 } 00259 00260 #endif 00261 #endif
Copyright © 2012 Torus Knot Software Ltd
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Last modified Sun Sep 2 2012 07:27:23