C++ GpuProgramParametersSharedPtr类代码示例

	//-----------------------------------------------------------------------------------
	void PbsMaterial::createTexturUnits(Pass* pass)
	{
		GpuProgramParametersSharedPtr fragmentParams = pass->getFragmentProgramParameters();
		fragmentParams->setIgnoreMissingParams(true);

		// Create the texture unit states
		for (int i = 0; i < ST_COUNT; i++)
		{
			SamplerContainer& s = _samplers[i];
			if (s.status == SS_ACTIVE || s.status == SS_ADDED || s.status == SS_UPDATED)
			{
				s.textureUnitState = pass->createTextureUnitState();
				s.textureUnitState->setName("in_map_" + s.name);
				s.status = SS_UPDATED;
			}
			else
			{
				s.status = SS_NOT_ACTIVE;
			}
		}

		// set the sampler name for the texture unit state
		int size = pass->getNumTextureUnitStates();
		for (int i = 0; i < size; i++)
		{
			TextureUnitState* tus = pass->getTextureUnitState(i);
			fragmentParams->setNamedConstant(tus->getName(), i);
		}

		_hasSamplerChanged = true;
	}

	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorC::SM2Profile::ShaderHelper::updateVpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const GpuProgramParametersSharedPtr& params)
	{
		params->setIgnoreMissingParams(true);
		uint maxLayers = prof->getMaxLayers(terrain);
		uint numLayers = std::min(maxLayers, static_cast<uint>(terrain->getLayerCount()));
		uint numUVMul = numLayers / 4;
		if (numLayers % 4)
			++numUVMul;
		for (uint i = 0; i < numUVMul; ++i)
		{
			Vector4 uvMul(
				terrain->getLayerUVMultiplier(i * 4), 
				terrain->getLayerUVMultiplier(i * 4 + 1), 
				terrain->getLayerUVMultiplier(i * 4 + 2), 
				terrain->getLayerUVMultiplier(i * 4 + 3) 
				);
			params->setNamedConstant("uvMul_" + StringConverter::toString(i), uvMul);
		}
 
		if (terrain->_getUseVertexCompression() && tt != RENDER_COMPOSITE_MAP)
		{
			Real baseUVScale = 1.0f / (terrain->getSize() - 1);
			params->setNamedConstant("baseUVScale", baseUVScale);
		}
 
	}

void CarModel::ChangeClr()
{
	int i = iColor;
	float c_h = pSet->gui.car_hue[i], c_s = pSet->gui.car_sat[i],
	      c_v = pSet->gui.car_val[i], gloss = pSet->gui.car_gloss[i], refl = pSet->gui.car_refl[i];
	color.setHSB(1-c_h, c_s, c_v);  //set, mini pos clr

	MaterialPtr mtr = MaterialManager::getSingleton().getByName(sMtr[Mtr_CarBody]);
	if (!mtr.isNull())
	{	Material::TechniqueIterator techIt = mtr->getTechniqueIterator();
		while (techIt.hasMoreElements())
		{	Technique* tech = techIt.getNext();
			Technique::PassIterator passIt = tech->getPassIterator();
			while (passIt.hasMoreElements())
			{	Pass* pass = passIt.getNext();
				if (pass->hasFragmentProgram())
				{
					GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
					params->setNamedConstant("carColour", color);
					params->setNamedConstant("glossiness", 1 - gloss);
					params->setNamedConstant("reflectiveness", refl);
	}	}	}	}

	if (pNickTxt)
		pNickTxt->setTextColour(MyGUI::Colour(color.r,color.g,color.b));
	
	// opp list text and mini pos colors - auto in hud update
}

void DepthOfFieldListener::notifyMaterialRender(uint32 pass_id, MaterialPtr &mat)
{
	if(pass_id == 2)
	{
		float blurScale =.5f;
		Vector4  pixelSize(1.0f / mViewportWidth, 1.0f / mViewportHeight,1.0f / (mViewportWidth * blurScale), 1.0f / (mViewportHeight * blurScale) );

		Pass *pass = mat->getBestTechnique()->getPass(0);
		GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();

		if (params->_findNamedConstantDefinition("pixelSize"))
			params->setNamedConstant("pixelSize", pixelSize);

		// this is the camera you're using
		#ifndef SR_EDITOR
		Camera *cam = mApp->mSplitMgr->mCameras.front();
		#else
		Camera *cam = mApp->mCamera;
		#endif

		if (params->_findNamedConstantDefinition("dofparams"))
		{
			Vector4 dofParams(0.0f,mApp->pSet->dof_focus,mApp->pSet->dof_far,1.0);
			params->setNamedConstant("dofparams", dofParams);
		}
	}
}

    void setUpBaseParameters(const GpuProgramParametersSharedPtr& params)
    {
        assert(params.isNull()==false);

        struct AutoParamPair { String name; GpuProgramParameters::AutoConstantType type; };

        //A list of auto params that might be present in the shaders generated
        static const AutoParamPair AUTO_PARAMS[] = {
            { "vpWidth",            GpuProgramParameters::ACT_VIEWPORT_WIDTH },
            { "vpHeight",           GpuProgramParameters::ACT_VIEWPORT_HEIGHT },
            { "worldView",          GpuProgramParameters::ACT_WORLDVIEW_MATRIX },
            { "invProj",            GpuProgramParameters::ACT_INVERSE_PROJECTION_MATRIX },
            { "invView",            GpuProgramParameters::ACT_INVERSE_VIEW_MATRIX },
            { "flip",               GpuProgramParameters::ACT_RENDER_TARGET_FLIPPING },
            { "lightDiffuseColor",  GpuProgramParameters::ACT_LIGHT_DIFFUSE_COLOUR },
            { "lightSpecularColor", GpuProgramParameters::ACT_LIGHT_SPECULAR_COLOUR },
            { "lightFalloff",       GpuProgramParameters::ACT_LIGHT_ATTENUATION },
            { "lightPos",           GpuProgramParameters::ACT_LIGHT_POSITION_VIEW_SPACE },
            { "lightDir",           GpuProgramParameters::ACT_LIGHT_DIRECTION_VIEW_SPACE },
            { "spotParams",         GpuProgramParameters::ACT_SPOTLIGHT_PARAMS },
            { "farClipDistance",    GpuProgramParameters::ACT_FAR_CLIP_DISTANCE },
            { "shadowViewProjMat",  GpuProgramParameters::ACT_TEXTURE_VIEWPROJ_MATRIX }
        };
        int numParams = sizeof(AUTO_PARAMS) / sizeof(AutoParamPair);
        
        for (int i=0; i<numParams; i++)
        {
            if (params->_findNamedConstantDefinition(AUTO_PARAMS[i].name))
            {
                params->setNamedAutoConstant(AUTO_PARAMS[i].name, AUTO_PARAMS[i].type);
            }
        }
    }

void GrassLoader::frameUpdate()
{
	unsigned long currentTime = windTimer.getMilliseconds();
	unsigned long ellapsedTime = currentTime - lastTime;
	lastTime = currentTime;

	float ellapsed = ellapsedTime / 1000.0f;

	//Update the vertex shader parameters
	std::list<GrassLayer*>::iterator it;
	for (it = layerList.begin(); it != layerList.end(); ++it){
		GrassLayer *layer = *it;

		layer->_updateShaders();

		GpuProgramParametersSharedPtr params = layer->material->getTechnique(0)->getPass(0)->getVertexProgramParameters();
		if (layer->animate){
			//Increment animation frame
			layer->waveCount += ellapsed * (layer->animSpeed * Math::PI);
			if (layer->waveCount > Math::PI*2) layer->waveCount -= Math::PI*2;

			//Set vertex shader parameters
			params->setNamedConstant("time", layer->waveCount);
			params->setNamedConstant("frequency", layer->animFreq);

			Vector3 direction = windDir * layer->animMag;
			params->setNamedConstant("direction", Vector4(direction.x, direction.y, direction.z, 0));

		}
	}
}

	//---------------------------------------------------------------------
	void HighLevelGpuProgram::populateParameterNames(GpuProgramParametersSharedPtr params)
	{
		getConstantDefinitions();
		params->_setNamedConstants(mConstantDefs);
		// also set logical / physical maps for programs which use this
		params->_setLogicalIndexes(mFloatLogicalToPhysical, mDoubleLogicalToPhysical, mIntLogicalToPhysical);
	}

    //-----------------------------------------------------------------------
    void GLSLESProgramPipeline::updatePassIterationUniforms(GpuProgramParametersSharedPtr params)
    {
        if (params->hasPassIterationNumber())
        {
            size_t index = params->getPassIterationNumberIndex();
            
            GLUniformReferenceIterator currentUniform = mGLUniformReferences.begin();
            GLUniformReferenceIterator endUniform = mGLUniformReferences.end();
            
            // Need to find the uniform that matches the multi pass entry
            for (;currentUniform != endUniform; ++currentUniform)
            {
                // Get the index in the parameter real list
                if (index == currentUniform->mConstantDef->physicalIndex)
                {
#if OGRE_PLATFORM != OGRE_PLATFORM_NACL
                    GLuint progID = 0;
                    if (getVertexProgram() && currentUniform->mSourceProgType == GPT_VERTEX_PROGRAM)
                    {
                        progID = getVertexProgram()->getGLProgramHandle();
                        OGRE_CHECK_GL_ERROR(glProgramUniform1fvEXT(progID, currentUniform->mLocation, 1, params->getFloatPointer(index)));
                    }
                    
                    if (mFragmentProgram && currentUniform->mSourceProgType == GPT_FRAGMENT_PROGRAM)
                    {
                        progID = mFragmentProgram->getGLProgramHandle();
                        OGRE_CHECK_GL_ERROR(glProgramUniform1fvEXT(progID, currentUniform->mLocation, 1, params->getFloatPointer(index)));
                    }
#endif
                    // There will only be one multipass entry
                    return;
                }
            }
        }
    }

	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorC::SM2Profile::ShaderHelper::defaultFpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const HighLevelGpuProgramPtr& prog)
	{
		GpuProgramParametersSharedPtr params = prog->getDefaultParameters();
		params->setIgnoreMissingParams(true);
		params->setNamedAutoConstant("fogColour", GpuProgramParameters::ACT_FOG_COLOUR);
		params->setNamedAutoConstant("cFarDistance", Ogre::GpuProgramParameters::ACT_FAR_CLIP_DISTANCE);
		params->setNamedAutoConstant("viewMatrix", GpuProgramParameters::ACT_WORLDVIEW_MATRIX); // tout sauf Z : VIEW_MATRIX
	}

	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorA::SM2Profile::ShaderHelper::updateFpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const GpuProgramParametersSharedPtr& params)
	{
		params->setIgnoreMissingParams(true);
		// TODO - parameterise this?
		Vector4 scaleBiasSpecular(0.03, -0.04, 32, 1);
		params->setNamedConstant("scaleBiasSpecular", scaleBiasSpecular);

	}

//-----------------------------------------------------------------------------
void ProgramProcessor::bindAutoParameters(Program* pCpuProgram, GpuProgramPtr pGpuProgram)
{
	GpuProgramParametersSharedPtr pGpuParams = pGpuProgram->getDefaultParameters();
	const UniformParameterList& progParams = pCpuProgram->getParameters();
	UniformParameterConstIterator itParams;

	for (itParams=progParams.begin(); itParams != progParams.end(); ++itParams)
	{
		const UniformParameterPtr pCurParam = *itParams;
		const GpuConstantDefinition* gpuConstDef = pGpuParams->_findNamedConstantDefinition(pCurParam->getName());
	
		if (gpuConstDef != NULL)
		{
			// Handle auto parameters.
			if (pCurParam->isAutoConstantParameter())
			{
				if (pCurParam->isAutoConstantRealParameter())
				{					
					pGpuParams->setNamedAutoConstantReal(pCurParam->getName(), 
						pCurParam->getAutoConstantType(), 
						pCurParam->getAutoConstantRealData());
										
				}
				else if (pCurParam->isAutoConstantIntParameter())
				{					
					pGpuParams->setNamedAutoConstant(pCurParam->getName(), 
						pCurParam->getAutoConstantType(), 
						pCurParam->getAutoConstantIntData());									
				}						
			}

			// Case this is not auto constant - we have to update its variability ourself.
			else
			{							
				gpuConstDef->variability |= pCurParam->getVariability();

				// Update variability in the float map.
				if (gpuConstDef->isSampler() == false)
				{
					GpuLogicalBufferStructPtr floatLogical = pGpuParams->getFloatLogicalBufferStruct();
					if (floatLogical.get())
					{
						for (GpuLogicalIndexUseMap::const_iterator i = floatLogical->map.begin(); i != floatLogical->map.end(); ++i)
						{
							if (i->second.physicalIndex == gpuConstDef->physicalIndex)
							{
								i->second.variability |= gpuConstDef->variability;
								break;
							}
						}
					}
				}											
			}		
		}			
	}
}

	//-----------------------------------------------------------------------
	GpuProgramParametersSharedPtr D3D10HLSLProgram::createParameters(void)
	{
		// Call superclass
		GpuProgramParametersSharedPtr params = HighLevelGpuProgram::createParameters();

		// D3D HLSL uses column-major matrices
		params->setTransposeMatrices(true);

		return params;
	}

void ATI_FS_GLGpuProgram::bindProgramPassIterationParameters(GpuProgramParametersSharedPtr params)
{
	if (params->hasPassIterationNumber())
	{
		size_t physicalIndex = params->getPassIterationNumberIndex();
		size_t logicalIndex = params->getFloatLogicalIndexForPhysicalIndex(physicalIndex);
		const float* pFloat = params->getFloatPointer(physicalIndex);
		glSetFragmentShaderConstantATI( GL_CON_0_ATI + (GLuint)logicalIndex, pFloat);
	}
}

void HDRListener::notifyMaterialRender(uint32 pass_id, MaterialPtr &mat)
{

	if (pass_id == 600 || pass_id == 800)
	{
		Pass *pass = mat->getBestTechnique()->getPass(0);
		GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();

		if (params->_findNamedConstantDefinition("toneMapSettings"))
		{
			Vector4 toneMapSettings(1-mApp->pSet->hdrParam1, mApp->pSet->hdrParam2, mApp->pSet->hdrParam3, 1.0);
			params->setNamedConstant("toneMapSettings", toneMapSettings);
		}
		if (params->_findNamedConstantDefinition("bloomSettings"))
		{
			Vector4 bloomSettings(mApp->pSet->hdrBloomorig*2, mApp->pSet->hdrBloomint, 1.0, 1.0);
			params->setNamedConstant("bloomSettings", bloomSettings);
		}
		if (params->_findNamedConstantDefinition("vignettingSettings"))
		{
			Vector4 vignettingSettings(mApp->pSet->vignRadius, mApp->pSet->vignDarkness, 1.0, 1.0);
			params->setNamedConstant("vignettingSettings", vignettingSettings);
		}

	}
	else if(pass_id == 989)
	{
		Pass *pass = mat->getBestTechnique()->getPass(0);
		GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
		if (params->_findNamedConstantDefinition("AdaptationScale"))
		{
			params->setNamedConstant("AdaptationScale", mApp->pSet->hdrAdaptationScale);
		}
	}
}

	virtual GpuProgramPtr generateFragmentShader(Perm permutation)
	{
		/// Create shader
		if (mMasterSource.empty())
		{
			DataStreamPtr ptrMasterSource;
            if(GpuProgramManager::getSingleton().isSyntaxSupported("glsles"))
                ptrMasterSource = ResourceGroupManager::getSingleton().openResource("DeferredShading/post/LightMaterial_ps.glsles",
                                                                                    ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
            else
                ptrMasterSource = ResourceGroupManager::getSingleton().openResource("DeferredShading/post/LightMaterial_ps.glsl",
                                                                                    ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);

			assert(ptrMasterSource.isNull()==false);
			mMasterSource = ptrMasterSource->getAsString();
		}

		assert(mMasterSource.empty()==false);

		// Create name
		String name = mBaseName+StringConverter::toString(permutation)+"_ps";

		// Create shader object
		HighLevelGpuProgramPtr ptrProgram;
        if(GpuProgramManager::getSingleton().isSyntaxSupported("glsles"))
        {
            ptrProgram = HighLevelGpuProgramManager::getSingleton().createProgram(name, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
                                                                                  "glsles", GPT_FRAGMENT_PROGRAM);
            ptrProgram->setParameter("profiles", "glsles");
        }
        else
        {
            ptrProgram = HighLevelGpuProgramManager::getSingleton().createProgram(name, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
                                                                                  "glsl", GPT_FRAGMENT_PROGRAM);
            ptrProgram->setParameter("profiles", "glsl150");
        }
        ptrProgram->setSource(mMasterSource);
		// set up the preprocessor defines
		// Important to do this before any call to get parameters, i.e. before the program gets loaded
		ptrProgram->setParameter("preprocessor_defines", getPPDefines(permutation));

		setUpBaseParameters(ptrProgram->getDefaultParameters());

        // Bind samplers
		GpuProgramParametersSharedPtr params = ptrProgram->getDefaultParameters();
        int numSamplers = 0;
        params->setNamedConstant("Tex0", (int)numSamplers++);
        params->setNamedConstant("Tex1", (int)numSamplers++);

        if(permutation & LightMaterialGenerator::MI_SHADOW_CASTER)
            params->setNamedConstant("ShadowTex", (int)numSamplers++);

		return GpuProgramPtr(ptrProgram);
	}