OgreShaderFFPTexturing.h
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/*
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This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
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Copyright (c) 2000-2013 Torus Knot Software Ltd
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#ifndef _ShaderFFPTextureStage_
#define _ShaderFFPTextureStage_
#include "OgreShaderPrerequisites.h"
#ifdef RTSHADER_SYSTEM_BUILD_CORE_SHADERS
#include "OgreShaderSubRenderState.h"
#include "OgreShaderParameter.h"
#include "OgreRenderSystem.h"
namespace Ogre {
namespace RTShader {
class _OgreRTSSExport FFPTexturing : public SubRenderState
{
// Interface.
public:
FFPTexturing();
virtual const String& getType() const;
virtual int getExecutionOrder() const;
virtual void updateGpuProgramsParams(Renderable* rend, Pass* pass, const AutoParamDataSource* source, const LightList* pLightList);
virtual void copyFrom(const SubRenderState& rhs);
virtual bool preAddToRenderState(const RenderState* renderState, Pass* srcPass, Pass* dstPass);
static String Type;
// Protected types:
protected:
// Per texture unit parameters.
struct _OgreRTSSExport TextureUnitParams
{
// Texture unit state.
TextureUnitState* mTextureUnitState;
// Texture projector.
const Frustum* mTextureProjector;
// Texture sampler index.
unsigned short mTextureSamplerIndex;
// Texture sampler index.
GpuConstantType mTextureSamplerType;
// Vertex shader input texture coordinate type.
GpuConstantType mVSInTextureCoordinateType;
// Vertex shader output texture coordinates type.
GpuConstantType mVSOutTextureCoordinateType;
// Texture coordinates calculation method.
TexCoordCalcMethod mTexCoordCalcMethod;
// Texture matrix parameter.
UniformParameterPtr mTextureMatrix;
// Texture View Projection Image space matrix parameter.
UniformParameterPtr mTextureViewProjImageMatrix;
// Texture sampler parameter.
UniformParameterPtr mTextureSampler;
// Vertex shader input texture coordinates parameter.
ParameterPtr mVSInputTexCoord;
// Vertex shader output texture coordinates parameter.
ParameterPtr mVSOutputTexCoord;
// Pixel shader input texture coordinates parameter.
ParameterPtr mPSInputTexCoord;
};
typedef vector<TextureUnitParams>::type TextureUnitParamsList;
typedef TextureUnitParamsList::iterator TextureUnitParamsIterator;
typedef TextureUnitParamsList::const_iterator TextureUnitParamsConstIterator;
// Protected methods
protected:
void setTextureUnitCount(size_t count);
size_t getTextureUnitCount() const { return mTextureUnitParamsList.size(); }
void setTextureUnit(unsigned short index, TextureUnitState* textureUnitState);
virtual bool resolveParameters(ProgramSet* programSet);
bool resolveUniformParams(TextureUnitParams* textureUnitParams, ProgramSet* programSet);
bool resolveFunctionsParams(TextureUnitParams* textureUnitParams, ProgramSet* programSet);
virtual bool resolveDependencies(ProgramSet* programSet);
virtual bool addFunctionInvocations(ProgramSet* programSet);
bool addVSFunctionInvocations(TextureUnitParams* textureUnitParams, Function* vsMain);
bool addPSFunctionInvocations(TextureUnitParams* textureUnitParams, Function* psMain, int& internalCounter);
virtual void addPSSampleTexelInvocation(TextureUnitParams* textureUnitParams, Function* psMain,
const ParameterPtr& texel, int groupOrder, int& internalCounter);
virtual void addPSArgumentInvocations(Function* psMain, ParameterPtr arg, ParameterPtr texel,
int samplerIndex, LayerBlendSource blendSrc, const ColourValue& colourValue, Real alphaValue,
bool isAlphaArgument, const int groupOrder, int& internalCounter);
virtual void addPSBlendInvocations(Function* psMain, ParameterPtr arg1, ParameterPtr arg2,
ParameterPtr texel,int samplerIndex, const LayerBlendModeEx& blendMode,
const int groupOrder, int& internalCounter, int targetChannels);
TexCoordCalcMethod getTexCalcMethod(TextureUnitState* textureUnitState);
bool needsTextureMatrix(TextureUnitState* textureUnitState);
virtual bool isProcessingNeeded(TextureUnitState* texUnitState);
// Attributes.
protected:
// Texture units list.
TextureUnitParamsList mTextureUnitParamsList;
// World matrix parameter.
UniformParameterPtr mWorldMatrix;
// World inverse transpose matrix parameter.
UniformParameterPtr mWorldITMatrix;
// View matrix parameter.
UniformParameterPtr mViewMatrix;
// Vertex shader input normal parameter.
ParameterPtr mVSInputNormal;
// Vertex shader input position parameter.
ParameterPtr mVSInputPos;
// Pixel shader output colour.
ParameterPtr mPSOutDiffuse;
// Pixel shader diffuse colour.
ParameterPtr mPSDiffuse;
// Pixel shader specular colour.
ParameterPtr mPSSpecular;
};
class _OgreRTSSExport FFPTexturingFactory : public SubRenderStateFactory
{
public:
virtual const String& getType() const;
virtual SubRenderState* createInstance(ScriptCompiler* compiler, PropertyAbstractNode* prop, Pass* pass, SGScriptTranslator* translator);
virtual void writeInstance(MaterialSerializer* ser, SubRenderState* subRenderState, Pass* srcPass, Pass* dstPass);
protected:
virtual SubRenderState* createInstanceImpl();
};
}
}
#endif
#endif
Ogre::RTShader::UniformParameterPtr
SharedPtr< UniformParameter > UniformParameterPtr
Definition: OgreShaderParameter.h:568
Ogre::LightList
HashedVector< Light * > LightList
Definition: OgreCommon.h:541
Ogre::LayerBlendSource
LayerBlendSource
List of valid sources of values for blending operations used in TextureUnitState::setColourOperation ...
Definition: OgreBlendMode.h:112
Ogre::vector::type
std::vector< T, A > type
Definition: OgrePrerequisites.h:494
Ogre::Real
float Real
Software floating point type.
Definition: OgrePrerequisites.h:70
OgreShaderParameter.h
OgreShaderPrerequisites.h
Ogre::RTShader::ParameterPtr
SharedPtr< Parameter > ParameterPtr
Definition: OgreShaderParameter.h:369
OgreRenderSystem.h
Ogre::TexCoordCalcMethod
TexCoordCalcMethod
Enum describing the ways to generate texture coordinates.
Definition: OgreRenderSystem.h:67
Ogre::String
_StringBase String
Definition: OgrePrerequisites.h:439
OgreShaderSubRenderState.h
_OgreRTSSExport
#define _OgreRTSSExport
Definition: OgreShaderPrerequisites.h:108
Ogre
Definition: OgreAndroidLogListener.h:34
Ogre::GpuConstantType
GpuConstantType
Enumeration of the types of constant we may encounter in programs.
Definition: OgreGpuProgramParams.h:54

Copyright © 2012 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.