C++ LLPipeline类代码示例

BOOL LLVOTree::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time)
{
 	if (mDead || !(gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_TREE)))
	{
		return TRUE;
	}
	
	S32 trunk_LOD = sMAX_NUM_TREE_LOD_LEVELS ;
	F32 app_angle = getAppAngle()*LLVOTree::sTreeFactor;

	for (S32 j = 0; j < sMAX_NUM_TREE_LOD_LEVELS; j++)
	{
		if (app_angle > LLVOTree::sLODAngles[j])
		{
			trunk_LOD = j;
			break;
		}
	} 

	if (mReferenceBuffer.isNull())
	{
		gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL, TRUE);
	}
	else if (trunk_LOD != mTrunkLOD)
	{
		gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL, FALSE);
	}
	else
	{
		// we're not animating but we may *still* need to
		// regenerate the mesh if we moved, since position
		// and rotation are baked into the mesh.
		// *TODO: I don't know what's so special about trees
		// that they don't get REBUILD_POSITION automatically
		// at a higher level.
		const LLVector3 &this_position = getPositionAgent();
		if (this_position != mLastPosition)
		{
			gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_POSITION);
			mLastPosition = this_position;
		}
		else
		{
			const LLQuaternion &this_rotation = getRotation();
			
			if (this_rotation != mLastRotation)
			{
				gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_POSITION);
				mLastRotation = this_rotation;
			}
		}
	}

	mTrunkLOD = trunk_LOD;

	return TRUE;
}

void LLVOTree::updateTextures()
{
	if (mTreeImagep)
	{
		if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXTURE_AREA))
		{
			setDebugText(llformat("%4.0f", fsqrtf(mPixelArea)));
		}
		mTreeImagep->addTextureStats(mPixelArea);
	}

}

LLDrawable* LLVOTree::createDrawable(LLPipeline *pipeline)
{
	pipeline->allocDrawable(this);
	mDrawable->setLit(FALSE);

	mDrawable->setRenderType(LLPipeline::RENDER_TYPE_TREE);

	LLDrawPoolTree *poolp = (LLDrawPoolTree*) gPipeline.getPool(LLDrawPool::POOL_TREE, mTreeImagep);

	// Just a placeholder for an actual object...
	LLFace *facep = mDrawable->addFace(poolp, mTreeImagep);
	facep->setSize(1, 3);

	updateRadius();

	return mDrawable;
}

void LLSky::updateSky()
{
	if (!gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_SKY))
	{
		return;
	}
	if (mVOSkyp)
	{
		mVOSkyp->updateSky();
	}
	if (mVOStarsp)
	{
		//if (mVOStarsp->mDrawable)
		//{
		//	gPipeline.markRebuild(mVOStarsp->mDrawable, LLDrawable::REBUILD_VOLUME, TRUE);
		//}
	}
}

BOOL LLSurface::idleUpdate(F32 max_update_time)
{
	LLMemType mt_ius(LLMemType::MTYPE_IDLE_UPDATE_SURFACE);
	if (!gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_TERRAIN))
	{
		return FALSE;
	}
	
	// Perform idle time update of non-critical stuff.
	// In this case, texture and normal updates.
	LLTimer update_timer;
	BOOL did_update = FALSE;

	// If the Z height data has changed, we need to rebuild our
	// property line vertex arrays.
	if (mDirtyPatchList.size() > 0)
	{
		getRegion()->dirtyHeights();
	}

	// Always call updateNormals() / updateVerticalStats()
	//  every frame to avoid artifacts
	for(std::set<LLSurfacePatch *>::iterator iter = mDirtyPatchList.begin();
		iter != mDirtyPatchList.end(); )
	{
		std::set<LLSurfacePatch *>::iterator curiter = iter++;
		LLSurfacePatch *patchp = *curiter;
		patchp->updateNormals();
		patchp->updateVerticalStats();
		if (max_update_time == 0.f || update_timer.getElapsedTimeF32() < max_update_time)
		{
			if (patchp->updateTexture())
			{
				did_update = TRUE;
				patchp->clearDirty();
				mDirtyPatchList.erase(curiter);
			}
		}
	}
	return did_update;
}

BOOL LLVOTree::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time)
{
	const U16 FRAMES_PER_WIND_UPDATE = 20;				//  How many frames between wind update per tree
	const F32 TREE_WIND_SENSITIVITY = 0.005f;
	const F32 TREE_TRUNK_STIFFNESS = 0.1f;

 	if (mDead || !(gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_TREE)))
	{
		return TRUE;
	}
	
	F32 mass_inv; 

	//  For all tree objects, update the trunk bending with the current wind 
	//  Walk sprite list in order away from viewer 
	if (!(mFrameCount % FRAMES_PER_WIND_UPDATE)) 
	{
		//  If needed, Get latest wind for this tree
		mWind = mRegionp->mWind.getVelocity(getPositionRegion());
	}
	mFrameCount++;

	mass_inv = 1.f/(5.f + mDepth*mBranches*0.2f);
	mTrunkVel += (mWind * mass_inv * TREE_WIND_SENSITIVITY);		//  Pull in direction of wind
	mTrunkVel -= (mTrunkBend * mass_inv * TREE_TRUNK_STIFFNESS);		//  Restoring force in direction of trunk 	
	mTrunkBend += mTrunkVel;
	mTrunkVel *= 0.99f;									//  Add damping

	if (mTrunkBend.magVec() > 1.f)
	{
		mTrunkBend.normVec();
	}

	if (mTrunkVel.magVec() > 1.f)
	{
		mTrunkVel.normVec();
	}

	return TRUE;
}

void LLViewerObjectList::shiftObjects(const LLVector3 &offset)
{
	// This is called when we shift our origin when we cross region boundaries...
	// We need to update many object caches, I'll document this more as I dig through the code
	// cleaning things out...

	if (gNoRender || 0 == offset.magVecSquared())
	{
		return;
	}

	LLViewerObject *objectp;
	for (vobj_list_t::iterator iter = mObjects.begin(); iter != mObjects.end(); ++iter)
	{
		objectp = *iter;
		// There could be dead objects on the object list, so don't update stuff if the object is dead.
		if (objectp && !objectp->isDead())
		{
			objectp->updatePositionCaches();

			if (objectp->mDrawable.notNull() && !objectp->mDrawable->isDead())
			{
				gPipeline.markShift(objectp->mDrawable);
			}
		}
	}

	gPipeline.shiftObjects(offset);
	LLWorld::getInstance()->shiftRegions(offset);
}

void LLViewerObjectList::shiftObjects(const LLVector3 &offset)
{
	// This is called when we shift our origin when we cross region boundaries...
	// We need to update many object caches, I'll document this more as I dig through the code
	// cleaning things out...

	if (gNoRender || 0 == offset.magVecSquared())
	{
		return;
	}

	LLViewerObject *objectp;
	S32 i;
	for (i = 0; i < mObjects.count(); i++)
	{
		objectp = getObject(i);
		// There could be dead objects on the object list, so don't update stuff if the object is dead.
		if (objectp)
		{
			objectp->updatePositionCaches();

			if (objectp->mDrawable.notNull() && !objectp->mDrawable->isDead())
			{
				gPipeline.markShift(objectp->mDrawable);
			}
		}
	}

	gPipeline.shiftObjects(offset);
	gWorldPointer->mPartSim.shift(offset);
}

void LLViewerJointAttachment::setupDrawable(LLViewerObject *object)
{
	if (!object->mDrawable)
		return;
	if (object->mDrawable->isActive())
	{
		object->mDrawable->makeStatic(FALSE);
	}

	object->mDrawable->mXform.setParent(getXform()); // LLViewerJointAttachment::lazyAttach
	object->mDrawable->makeActive();
	LLVector3 current_pos = object->getRenderPosition();
	LLQuaternion current_rot = object->getRenderRotation();
	LLQuaternion attachment_pt_inv_rot = ~(getWorldRotation());

	current_pos -= getWorldPosition();
	current_pos.rotVec(attachment_pt_inv_rot);

	current_rot = current_rot * attachment_pt_inv_rot;

	object->mDrawable->mXform.setPosition(current_pos);
	object->mDrawable->mXform.setRotation(current_rot);
	gPipeline.markMoved(object->mDrawable);
	gPipeline.markTextured(object->mDrawable); // face may need to change draw pool to/from POOL_HUD
	object->mDrawable->setState(LLDrawable::USE_BACKLIGHT);
	
	if(mIsHUDAttachment)
	{
		for (S32 face_num = 0; face_num < object->mDrawable->getNumFaces(); face_num++)
		{
			object->mDrawable->getFace(face_num)->setState(LLFace::HUD_RENDER);
		}
	}

	LLViewerObject::const_child_list_t& child_list = object->getChildren();
	for (LLViewerObject::child_list_t::const_iterator iter = child_list.begin();
		 iter != child_list.end(); ++iter)
	{
		LLViewerObject* childp = *iter;
		if (childp && childp->mDrawable.notNull())
		{
			childp->mDrawable->setState(LLDrawable::USE_BACKLIGHT);
			gPipeline.markTextured(childp->mDrawable); // face may need to change draw pool to/from POOL_HUD
			gPipeline.markMoved(childp->mDrawable);

			if(mIsHUDAttachment)
			{
				for (S32 face_num = 0; face_num < childp->mDrawable->getNumFaces(); face_num++)
				{
					childp->mDrawable->getFace(face_num)->setState(LLFace::HUD_RENDER);
				}
			}
		}
	}
}

void LLSky::updateCull()
{
	/*if (mVOSkyp.notNull() && mVOSkyp->mDrawable.notNull())
	{
		gPipeline.markVisible(mVOSkyp->mDrawable);
	}
	else
	{
		llinfos << "No sky drawable!" << llendl;
	}*/

	if (mVOStarsp.notNull() && mVOStarsp->mDrawable.notNull())
	{
		gPipeline.markVisible(mVOStarsp->mDrawable, *gCamera);
	}
	else
	{
		llinfos << "No stars drawable!" << llendl;
	}

	/*if (mVOGroundp.notNull() && mVOGroundp->mDrawable.notNull())
	{
		gPipeline.markVisible(mVOGroundp->mDrawable);
	}*/
}

//static added one block for openregion ----- voodoo
void LLSurface::rebuildWater()
{
	//lldebugs << "Rebuilding Water...";
	//BOOL renderwater = gSavedSettings.getBOOL("RenderWater") && LLWorld::getInstance()->getAllowRenderWater();
	if(!mWaterObjp.isNull())

	//if(prev_renderwater && !renderwater)
	{
		//lldebugs << "Removing Water";
		//Remove the old
		gObjectList.killObject(mWaterObjp);
	}

	if (gSavedSettings.getBOOL("RenderWater") && gHippoLimits->mRenderWater)
	//if (!prev_renderwater && renderwater)
	{
		//lldebugs << "Building Water";
		createWaterTexture();
		mWaterObjp = (LLVOWater *)gObjectList.createObjectViewer(LLViewerObject::LL_VO_WATER, mRegionp);
		gPipeline.createObject(mWaterObjp);
		LLVector3d water_pos_global = from_region_handle(mRegionp->getHandle());
		water_pos_global += LLVector3d(128.0, 128.0, DEFAULT_WATER_HEIGHT);
		//water_pos_global += LLVector3d(mRegionp->getWidth()/2, mRegionp->getWidth()/2, DEFAULT_WATER_HEIGHT);
		mWaterObjp->setPositionGlobal(water_pos_global);
	}
	//lldebugs << "Rebuilding Water Complete";
}

void LLCloudGroup::updatePuffs(const F32 dt)
{
	mDensity = mCloudLayerp->getDensityRegion(mCenterRegion);

	if (!mVOCloudsp)
	{
		mVOCloudsp = (LLVOClouds *)gObjectList.createObjectViewer(LLViewerObject::LL_VO_CLOUDS, mCloudLayerp->getRegion());
		if(mVOCloudsp)
		{
			mVOCloudsp->setCloudGroup(this);
			mVOCloudsp->setPositionRegion(mCenterRegion);
			mVOCloudsp->setScale(LLVector3(256.f/CLOUD_GROUPS_PER_EDGE + CLOUD_PUFF_WIDTH,
											 256.f/CLOUD_GROUPS_PER_EDGE + CLOUD_PUFF_WIDTH,
											 CLOUD_HEIGHT_RANGE + CLOUD_PUFF_HEIGHT)*0.5f);
			gPipeline.createObject(mVOCloudsp);
		}
	}

	LLVector3 velocity;
	LLVector3d vel_d;
	// Update the positions of all of the clouds
	for (U32 i = 0; i < mCloudPuffs.size(); i++)
	{
		LLCloudPuff &puff = mCloudPuffs[i];
		velocity = mCloudLayerp->getRegion()->mWind.getCloudVelocity(mCloudLayerp->getRegion()->getPosRegionFromGlobal(puff.mPositionGlobal));
		velocity *= CLOUD_VELOCITY_SCALE*CLOUD_UPDATE_RATE;
		vel_d.setVec(velocity);
		mCloudPuffs[i].mPositionGlobal += vel_d;
		mCloudPuffs[i].mAlpha += mCloudPuffs[i].mRate * dt;
		mCloudPuffs[i].mAlpha = llmin(1.f, mCloudPuffs[i].mAlpha);
		mCloudPuffs[i].mAlpha = llmax(0.f, mCloudPuffs[i].mAlpha);
	}
}

void LLSurface::initTextures()
{
	///////////////////////
	//
	// Main surface texture
	//
	createSTexture();

	///////////////////////
	//
	// Water texture
	//
	if (gSavedSettings.getBOOL("RenderWater") )
	{
		createWaterTexture();
		mWaterObjp = (LLVOWater *)gObjectList.createObjectViewer(LLViewerObject::LL_VO_WATER, mRegionp);
		gPipeline.createObject(mWaterObjp);
		LLVector3d water_pos_global = from_region_handle(mRegionp->getHandle());
// <FS:CR> Aurora Sim
		//water_pos_global += LLVector3d(128.0, 128.0, DEFAULT_WATER_HEIGHT);		// region doesn't have a valid water height yet
		water_pos_global += LLVector3d(mRegionp->getWidth()/2, mRegionp->getWidth()/2, DEFAULT_WATER_HEIGHT);
		mWaterObjp->setPositionGlobal(water_pos_global);
// </FS:CR> Aurora Sim
	}
}

void LLViewerObjectList::renderPickList(const LLRect& screen_rect, BOOL pick_parcel_wall, BOOL render_transparent)
{
	gRenderForSelect = TRUE;
		
	gPipeline.renderForSelect(mSelectPickList, render_transparent, screen_rect);

	//
	// Render pass for selected objects
	//
	gGL.color4f(1,1,1,1);	
	gViewerWindow->renderSelections( TRUE, pick_parcel_wall, FALSE );

	//fix for DEV-19335.  Don't pick hud objects when customizing avatar (camera mode doesn't play nice with nametags).
	if (!gAgent.cameraCustomizeAvatar())
	{
		// render pickable ui elements, like names, etc.
		LLHUDObject::renderAllForSelect();
	}
	
	gGL.flush();
	LLVertexBuffer::unbind();

	gRenderForSelect = FALSE;

	//llinfos << "Rendered " << count << " for select" << llendl;
	//llinfos << "Took " << pick_timer.getElapsedTimeF32()*1000.f << "ms to pick" << llendl;
}

void LLViewerObjectList::processUpdateCore(LLViewerObject* objectp, 
										   void** user_data, 
										   U32 i, 
										   const EObjectUpdateType update_type, 
										   LLDataPacker* dpp, 
										   BOOL just_created)
{
	LLMessageSystem* msg = gMessageSystem;

	// ignore returned flags
	objectp->processUpdateMessage(msg, user_data, i, update_type, dpp);

	if (objectp->isDead())
	{
		// The update failed
		return;
	}
	updateActive(objectp);

	// Also sets the approx. pixel area
	objectp->setPixelAreaAndAngle(gAgent);

	// Update the image levels of textures for this object.
	objectp->updateTextures(gAgent);

	if (just_created) 
	{
		gPipeline.addObject(objectp);
	}
	else
	{
		primbackup::getInstance()->prim_update(objectp);
	}

	// RN: this must be called after we have a drawable 
	// (from gPipeline.addObject)
	// so that the drawable parent is set properly
	findOrphans(objectp, msg->getSenderIP(), msg->getSenderPort());

	// If we're just wandering around, don't create new objects selected.
	if (just_created 
		&& update_type != OUT_TERSE_IMPROVED 
		&& objectp->mCreateSelected)
	{
		if ( gToolMgr->getCurrentTool() != gToolPie )
		{
			//llinfos << "DEBUG selecting " << objectp->mID << " " 
			//		<< objectp->mLocalID << llendl;
			gSelectMgr->selectObjectAndFamily(objectp);
			dialog_refresh_all();
		}

		objectp->mCreateSelected = false;
		gViewerWindow->getWindow()->decBusyCount();
		gViewerWindow->getWindow()->setCursor( UI_CURSOR_ARROW );

		primbackup::getInstance()->newprim(objectp);
	}
}