C++ GpuProgramParametersSharedPtr::_findNamedConstantDefinition方法代码示例

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);
		}
	}
}

    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);
            }
        }
    }

//  HUD utils
//---------------------------------------------------------------------------------------------------------------
void CHud::UpdMiniTer()
{
	MaterialPtr mm = MaterialManager::getSingleton().getByName("circle_minimap");
	Pass* pass = mm->getTechnique(0)->getPass(0);
	if (!pass)  return;
	try
	{	GpuProgramParametersSharedPtr par = pass->getFragmentProgramParameters();
		bool ter = app->scn->sc->ter;
		if (par->_findNamedConstantDefinition("showTerrain",false))
			par->setNamedConstant("showTerrain", pSet->mini_terrain && ter ? 1.f : 0.f);
		if (par->_findNamedConstantDefinition("showBorder",false))
			par->setNamedConstant("showBorder", pSet->mini_border && ter ? 1.f : 0.f);
		if (par->_findNamedConstantDefinition("square",false))
			par->setNamedConstant("square", pSet->mini_zoomed && ter ? 0.f : 1.f);
	}
	catch(...){  }
}

void DepthOfFieldEffect::notifyMaterialSetup(uint32 passId, MaterialPtr& material)
{
	switch (passId)
	{
	case BlurPass:
		{
			//float pixelSize[2] = {
			//	1.0f / (gEnv->ogreViewPort->getActualWidth() / BLUR_DIVISOR),
			//	1.0f / (gEnv->ogreViewPort->getActualHeight() / BLUR_DIVISOR)};

			// Adjust fragment program parameters
			Ogre::Vector3 ps = Ogre::Vector3(1.0f / (mWidth / BLUR_DIVISOR),1.0f / (mHeight / BLUR_DIVISOR), 1.0f);
			float pixelSize[3] = { ps.x, ps.y, ps.z };
			GpuProgramParametersSharedPtr fragParams = material->getBestTechnique()->getPass(0)->getFragmentProgramParameters();
			if ((!fragParams.isNull())&&(fragParams->_findNamedConstantDefinition("pixelSize")))
				fragParams->setNamedConstant("pixelSize", pixelSize, 1, 3);

			break;
		}

	case OutputPass:
		{
			float pixelSizeScene[3] = {
				1.0f / mWidth,
				1.0f / mHeight,
				0};

			float pixelSizeBlur[3] = {
				1.0f / (mWidth / BLUR_DIVISOR),
				1.0f / (mHeight / BLUR_DIVISOR),
				0};

			// Adjust fragment program parameters
			GpuProgramParametersSharedPtr fragParams =
				material->getBestTechnique()->getPass(0)->getFragmentProgramParameters();
			if ((!fragParams.isNull())&&(fragParams->_findNamedConstantDefinition("pixelSizeScene")))
				fragParams->setNamedConstant("pixelSizeScene", pixelSizeScene,1,3);
			if ((!fragParams.isNull())&&(fragParams->_findNamedConstantDefinition("pixelSizeBlur")))
				fragParams->setNamedConstant("pixelSizeBlur", pixelSizeBlur,1,3);

			break;
		}
	}
}

//-----------------------------------------------------------------------------
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;
							}
						}
					}
				}											
			}		
		}			
	}
}

//-----------------------------------------------------------------------
void UniformParameter::bind(GpuProgramParametersSharedPtr paramsPtr)
{	
	if (paramsPtr.get() != NULL)
	{
		const GpuConstantDefinition* def = paramsPtr->_findNamedConstantDefinition(mName);

		if (def != NULL)
		{
			mParamsPtr = paramsPtr.get();
			mPhysicalIndex = def->physicalIndex;
		}
	}
}

void DepthOfFieldEffect::preViewportUpdate(const Ogre::RenderTargetViewportEvent& evt)
{

	float dofParams[4] = {mNearDepth, mFocalDepth, mFarDepth, mFarBlurCutoff};

	// Adjust fragment program parameters for depth pass
	GpuProgramParametersSharedPtr fragParams =
		mDepthTechnique->getPass(0)->getFragmentProgramParameters();
	if ((!fragParams.isNull())&&(fragParams->_findNamedConstantDefinition("dofParams")))
		fragParams->setNamedConstant("dofParams", dofParams,1,4);		

	evt.source->setVisibilityMask(~DEPTHMAP_DISABLED);

	// Add 'this' as a RenderableListener to replace the technique for all renderables
	RenderQueue* queue = evt.source->getCamera()->getSceneManager()->getRenderQueue();
	queue->setRenderableListener(this);
}

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

	// Bind the samplers.
	for (itParams=progParams.begin(); itParams != progParams.end(); ++itParams)
	{
		const UniformParameterPtr pCurParam = *itParams;
		const GpuConstantDefinition* gpuConstDef = pGpuParams->_findNamedConstantDefinition(pCurParam->getName());
		
		if (pCurParam->isSampler())
		{		
			pGpuParams->setNamedConstant(pCurParam->getName(), pCurParam->getIndex());						
		}		
	}
}

//-----------------------------------------------------------------------------
///
void StaticBillboardSet::updateAll(const Vector3 &cameraDirection)
{
   // s_nSelfInstances will only be greater than 0 if one or more StaticBillboardSet's are using BB_METHOD_ACCELERATED
   if (s_nSelfInstances == 0)
      return;

   //Set shader parameter so material will face camera
   Vector3 forward = cameraDirection;
   Vector3 vRight = forward.crossProduct(Vector3::UNIT_Y);
   Vector3 vUp = forward.crossProduct(vRight);
   vRight.normalise();
   vUp.normalise();

   //Even if camera is upside down, the billboards should remain upright
   if (vUp.y < 0)
      vUp *= -1;

   // Precompute preRotatedQuad for both cases (BBO_CENTER, BBO_BOTTOM_CENTER)
   
   Vector3 vPoint0 = (-vRight + vUp);
   Vector3 vPoint1 = ( vRight + vUp);
   Vector3 vPoint2 = (-vRight - vUp);
   Vector3 vPoint3 = ( vRight - vUp);

   float preRotatedQuad_BBO_CENTER[16] = // single prerotated quad oriented towards the camera
   {
      (float)vPoint0.x, (float)vPoint0.y, (float)vPoint0.z, 0.0f,
      (float)vPoint1.x, (float)vPoint1.y, (float)vPoint1.z, 0.0f,
      (float)vPoint2.x, (float)vPoint2.y, (float)vPoint2.z, 0.0f,
      (float)vPoint3.x, (float)vPoint3.y, (float)vPoint3.z, 0.0f
   };

   vPoint0 = (-vRight + vUp + vUp);
   vPoint1 = ( vRight + vUp + vUp);
   vPoint2 = (-vRight);
   vPoint3 = ( vRight);
   float preRotatedQuad_BBO_BOTTOM_CENTER[16] =
   {
      (float)vPoint0.x, (float)vPoint0.y, (float)vPoint0.z, 0.0f,
      (float)vPoint1.x, (float)vPoint1.y, (float)vPoint1.z, 0.0f,
      (float)vPoint2.x, (float)vPoint2.y, (float)vPoint2.z, 0.0f,
      (float)vPoint3.x, (float)vPoint3.y, (float)vPoint3.z, 0.0f
   };

   // Shaders uniform variables
   static const Ogre::String uScroll = "uScroll", vScroll = "vScroll", preRotatedQuad0 = "preRotatedQuad[0]",
      preRotatedQuad1 = "preRotatedQuad[1]", preRotatedQuad2 = "preRotatedQuad[2]", preRotatedQuad3 = "preRotatedQuad[3]";

   // SVA for Ogre::Material hack
   const GpuConstantDefinition *pGPU_ConstDef_preRotatedQuad0 = 0,
      *pGPU_ConstDef_uScroll = 0, *pGPU_ConstDef_vScroll = 0;

   // For each material in use by the billboard system..
   SBMaterialRefList::iterator i1 = SBMaterialRef::getList().begin(), iend = SBMaterialRef::getList().end();
   while (i1 != iend)
   {
      Ogre::Material *mat = i1->second->getMaterial();

      // Ensure material is set up with the vertex shader
      Pass *p = mat->getTechnique(0)->getPass(0);
      if (!p->hasVertexProgram())
      {
         static const Ogre::String Sprite_vp = "Sprite_vp";
         p->setVertexProgram(Sprite_vp);

         // glsl can use the built in gl_ModelViewProjectionMatrix
         if (!s_isGLSL)
            p->getVertexProgramParameters()->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);

         GpuProgramParametersSharedPtr params = p->getVertexProgramParameters();
         params->setNamedAutoConstant(uScroll, GpuProgramParameters::ACT_CUSTOM);
         params->setNamedAutoConstant(vScroll, GpuProgramParameters::ACT_CUSTOM);
         params->setNamedAutoConstant(preRotatedQuad0, GpuProgramParameters::ACT_CUSTOM);
         params->setNamedAutoConstant(preRotatedQuad1, GpuProgramParameters::ACT_CUSTOM);
         params->setNamedAutoConstant(preRotatedQuad2, GpuProgramParameters::ACT_CUSTOM);
         params->setNamedAutoConstant(preRotatedQuad3, GpuProgramParameters::ACT_CUSTOM);
      }

      // Which prerotated quad use
      const float *pQuad = i1->second->getOrigin() == BBO_CENTER ? preRotatedQuad_BBO_CENTER : preRotatedQuad_BBO_BOTTOM_CENTER;

      // Update the vertex shader parameters
      GpuProgramParametersSharedPtr params = p->getVertexProgramParameters();
      //params->setNamedConstant(preRotatedQuad0, pQuad, 4);
      //params->setNamedConstant(uScroll, p->getTextureUnitState(0)->getTextureUScroll());
      //params->setNamedConstant(vScroll, p->getTextureUnitState(0)->getTextureVScroll());

      // SVA some hack of Ogre::Material.
      // Since material are cloned and use same vertex shader "Sprite_vp" hardware GPU indices
      // must be same. I don`t know planes of Ogre Team to change this behaviour.
      // Therefore this may be unsafe code. Instead of 3 std::map lookups(map::find(const Ogre::String&)) do only 1
      {
         const GpuConstantDefinition *def = params->_findNamedConstantDefinition(preRotatedQuad0, true);
         if (def != pGPU_ConstDef_preRotatedQuad0) // new material, reread
         {
            pGPU_ConstDef_preRotatedQuad0 = def;
            pGPU_ConstDef_uScroll         = params->_findNamedConstantDefinition(uScroll, true);
            pGPU_ConstDef_vScroll         = params->_findNamedConstantDefinition(vScroll, true);
//.........这里部分代码省略.........

        void _init(void)
        {
            CompositorPtr compositor = CompositorManager::getSingleton().create(
                _theType(), ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
			CompositionTechnique *t;
            CompositionTechnique::TextureDefinition *td;
            CompositionTargetPass *tp;
            CompositionPass *pass;

            t = compositor->createTechnique();
            td = t->createTextureDefinition("scene");
            td->width.viewport = 1;
            td->height.viewport = 1;
            td->format = PF_X8R8G8B8;
            td = t->createTextureDefinition("blur0");
            td->width.viewport = 0.5;
            td->height.viewport = 0.5;
            td->format = PF_X8R8G8B8;
            td = t->createTextureDefinition("blur1");
            td->width.viewport = 0.5;
            td->height.viewport = 0.5;
            td->format = PF_X8R8G8B8;

            tp = t->createTargetPass();
            tp->setInputMode(CompositionTargetPass::IM_PREVIOUS);
            tp->setOutputName("scene");

            tp = t->createTargetPass();
			tp->setInputMode(CompositionTargetPass::IM_NONE);
            tp->setOutputName("blur0");
            pass = tp->createPass();
            pass->setType(CompositionPass::PT_RENDERQUAD);
            pass->setMaterialName("PostFilters/Floodlighting/DownSample");
            pass->setInput(0, "scene");

            tp = t->createTargetPass();
			tp->setInputMode(CompositionTargetPass::IM_NONE);
            tp->setOutputName("blur1");
            pass = tp->createPass();
            pass->setType(CompositionPass::PT_RENDERQUAD);
            pass->setMaterialName("PostFilters/Floodlighting/BlurHorizontal");
            pass->setInput(0, "blur0");

            tp = t->createTargetPass();
			tp->setInputMode(CompositionTargetPass::IM_NONE);
            tp->setOutputName("blur1");
            pass = tp->createPass();
            pass->setType(CompositionPass::PT_RENDERQUAD);
            pass->setMaterialName("PostFilters/Floodlighting/BlurVertical");
            pass->setInput(0, "blur0");

            tp = t->getOutputTargetPass();
			tp->setInputMode(CompositionTargetPass::IM_NONE);
            pass = tp->createPass();
            pass->setType(CompositionPass::PT_RENDERQUAD);
            pass->setMaterialName("PostFilters/Floodlighting/Blend");
            pass->setInput(0, "scene");
            pass->setInput(1, "blur1");
            pass->setIdentifier(0xDEADBADE);

            mBlurAmount = 0.2f;
            mShineAmount = 0.3f;
            // receive default parameters from material script
            if (!pass->getMaterial().isNull())
            {
                GpuProgramParametersSharedPtr parameters = pass->getMaterial()->getTechnique(0)->getPass(0)->getFragmentProgramParameters();
#if OGRE_VERSION >= 0x010300
                const GpuConstantDefinition* def;
                
                def = parameters->_findNamedConstantDefinition("blur_amount");
                if (def)
                    parameters->_readRawConstants(def->physicalIndex, 1, &mBlurAmount);
                def = parameters->_findNamedConstantDefinition("shine_amount");
                if (def)
                    parameters->_readRawConstants(def->physicalIndex, 1, &mShineAmount);
#else
                GpuProgramParameters::RealConstantEntry* entry;

                entry = parameters->getNamedRealConstantEntry("blur_amount");
                if (entry && entry->isSet)
                    mBlurAmount = entry->val[0];

                entry = parameters->getNamedRealConstantEntry("shine_amount");
                if (entry && entry->isSet)
                    mShineAmount = entry->val[0];
#endif
            }
        }