C++ Viewport类代码示例

void ChildWnd1::onCreate()
{
	// create the tabs
	m_tabs.create(8, 8, 400, 360);
	m_tabs.addTab("tab 1");
	m_tabs.addTab("tab 2");
	m_tabs.addTab("Buttons");
	m_tabs.addTab("Radio Buttons");
	m_tabs.addTab("Comboboxes");
	addComponent(&m_tabs);

	// create a simple push button
	m_button1.create(260, 40, "Button", 1);
	//m_button1.create(260, 40, 80, 60, "Button", 1);
	m_button1.setIcon(ResourceManager::inst()->loadImage("gears.png"), Button::NEAR_LEFT, 32,32);
	//m_button1.setFace(Button::UP, ResourceManager::inst()->loadImage("gears.png"));
	m_tabs.addComponent(&m_button1, 0);

	m_button2.create(40, 70, "Button2", 201);
	m_button2.disable();
	m_button3.create(40, 100, "Button3", 202);
	m_button3.repeatClickOnHold(true);
	m_button3.handleButtonDown(makeFunctor(*Application::inst(), &Application::onButtonDown));
	m_button4.create(40, 130, "Button4", 203, makeFunctor(*Application::inst(), &Application::onClick));
	m_button4.setFace(Button::UP, ResourceManager::inst()->loadImage("gears.png"));
	m_button4.setTextColor(Color(0.2f, 0.2f, 0.2f));
	m_button5.create(240, 130, "Button5", 203);
	m_button5.setFace(Button::UP, ResourceManager::inst()->loadImage("gears.png"));
	m_button5.setSize(100, 20);
	m_button5.setTextColor(Color(0.2f, 0.2f, 0.2f));
	//m_tabs.addComponent(&m_button1, 2);
	m_tabs.addComponent(&m_button2, 2);
	m_tabs.addComponent(&m_button3, 2);
	m_tabs.addComponent(&m_button4, 2);
	m_tabs.addComponent(&m_button5, 2);

	m_checkbox1.create(260, 70, "check here", 102);
	m_tabs.addComponent(&m_checkbox1, 0);

	m_label1.create(260, 90, "eò á [email protected]#$%^&*()");
//	m_tabs.addComponent(&m_label1, 0);

	// create a group of radio buttons
	m_radio1.create(20, 20, "Radio Button 1", 2);
	m_radio2.create(20, 40, "Radio Button 2", 3);
	m_group.create(20, 20, 200, 80, "Radio group");
	m_group.addComponent(&m_radio1);
	m_group.addComponent(&m_radio2);
	m_tabs.addComponent(&m_group, 0);

	// create a slider (also an example of using a live
	// variable)
	m_slider.create(20, 120, 300, 4);
	m_slider.bindValue(&m_sliderPos);
	m_slider.setBounds(0, 10, 2, 20);
	m_tabs.addComponent(&m_slider, 0);

	// create a textbox
	m_textbox.create(230, 160, 130, 180, true, true);
	m_textbox.setText("Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.");
	m_tabs.addComponent(&m_textbox, 0);
	
	m_listbox1.create(20, 140, 200, 200, ListBox::MULTI_SELECT_SINGLECLICK);
	m_listbox1.addItem("item 1");
	m_listbox1.addItem("disabled item 2");
	m_listbox1.addItem("item 3");
	m_listbox1.addItem("item 4");
	m_listbox1.addItem("item 5");
	for (size_t i=0; i<20; ++i)
		m_listbox1.addItem("item");
	m_listbox1.addItem("last item");
	m_listbox1.disableItem(1);
	int t1 = m_listbox1.getCurrentItem();
	m_listbox1.setCurrentItem(3);
	m_listbox1.selectItem(2, true);
	int t2 = m_listbox1.getCurrentItem();
	Console::print("%d %d\n", t1,t2);
	m_tabs.addComponent(&m_listbox1, 0);

	m_combobox1.create(230, 140, 80, 200);
	m_combobox1.addItem("item 1");
	m_combobox1.addItem("item 2");
	m_combobox1.addItem("item 3");
	m_combobox1.addItem("item 4");
	m_combobox1.disableItem(2);
	m_combobox1.setCurrentItem(1);
	/*m_combobox2.create(230, 120, 80, 200);
	m_combobox2.addItem("item 1");
	m_tabs.addComponent(&m_combobox2, 0);*/
	m_tabs.addComponent(&m_combobox1, 0);

	// create a test viewport
	Viewport vp;
	vp.setPerspectiveProj(0.1f, 100.0f, 45.0f);
	m_vp.create(40, 40, 300, 300, vp, makeFunctor(*Application::inst(), &Application::onRenderVp));
	m_tabs.addComponent(&m_vp, 1);

	// change the size of the window, so that the client area is large
	// enough to hold the contents
	setClientAreaSize(416, 410);
//.........这里部分代码省略.........

/** Update the state of the path build process. */
void PathBuildManager::UpdateState()
{
	Viewport *vp = GetViewport();

	if (this->state == PBS_IDLE || this->state == PBS_SINGLE) {
		DisableWorldAdditions();
		this->selected_arrow = INVALID_EDGE;
		this->selected_slope = this->state == PBS_IDLE ? TSL_INVALID : TSL_FLAT;
	}

	/* The tile cursor is controlled by the viewport if waiting for a voxel or earlier. */
	if (vp != nullptr && this->state > PBS_WAIT_VOXEL && this->state <= PBS_WAIT_BUY) {
		vp->tile_cursor.SetCursor(this->pos, CUR_TYPE_TILE);
	}

	/* See whether the PBS_WAIT_ARROW state can be left automatically. */
	if (this->state == PBS_WAIT_ARROW) {
		this->allowed_arrows = GetPathAttachPoints(this->pos);

		/* If a valid selection has been made, or if only one choice exists, take it. */
		if (this->selected_arrow != INVALID_EDGE && ((0x11 << this->selected_arrow) & this->allowed_arrows) != 0) {
			this->state = PBS_WAIT_SLOPE;
		} else if (this->allowed_arrows == (1 << EDGE_NE) || this->allowed_arrows == (0x10 << EDGE_NE)) {
			this->selected_arrow = EDGE_NE;
			this->state = PBS_WAIT_SLOPE;
		} else if (this->allowed_arrows == (1 << EDGE_NW) || this->allowed_arrows == (0x10 << EDGE_NW)) {
			this->selected_arrow = EDGE_NW;
			this->state = PBS_WAIT_SLOPE;
		} else if (this->allowed_arrows == (1 << EDGE_SE) || this->allowed_arrows == (0x10 << EDGE_SE)) {
			this->selected_arrow = EDGE_SE;
			this->state = PBS_WAIT_SLOPE;
		} else if (this->allowed_arrows == (1 << EDGE_SW) || this->allowed_arrows == (0x10 << EDGE_SW)) {
			this->selected_arrow = EDGE_SW;
			this->state = PBS_WAIT_SLOPE;
		}
	}

	/* Set the arrow cursor. Note that display is controlled later. */
	if (vp != nullptr) {
		if (this->state > PBS_WAIT_ARROW && this->state <= PBS_WAIT_BUY) {
			XYZPoint16 arrow_pos = this->ComputeArrowCursorPosition();
			vp->arrow_cursor.SetCursor(arrow_pos, (CursorType)(CUR_TYPE_ARROW_NE + this->selected_arrow));
		} else {
			vp->arrow_cursor.SetInvalid();
		}
	}

	/* See whether the PBS_WAIT_SLOPE state can be left automatically. */
	if (this->state == PBS_WAIT_SLOPE) {
		/* Compute allowed slopes. */
		XYZPoint16 arrow_pos = this->ComputeArrowCursorPosition();
		this->allowed_slopes = CanBuildPathFromEdge(arrow_pos, (TileEdge)((this->selected_arrow + 2) % 4));

		/* If a valid selection has been made, or if only one choice exists, take it. */
		if (this->selected_slope != TSL_INVALID && ((1 << this->selected_slope) & this->allowed_slopes) != 0) {
			this->state = PBS_WAIT_BUY;
		} else if (this->allowed_slopes == (1 << TSL_DOWN)) {
			this->selected_slope = TSL_DOWN;
			this->state = PBS_WAIT_BUY;
		} else if (this->allowed_slopes == (1 << TSL_FLAT)) {
			this->selected_slope = TSL_FLAT;
			this->state = PBS_WAIT_BUY;
		} else if (this->allowed_slopes == (1 << TSL_UP)) {
			this->selected_slope = TSL_UP;
			this->state = PBS_WAIT_BUY;
		}
	}

	/* Handle _additions display. */
	if (vp != nullptr) {
		if (this->state == PBS_SINGLE || this->state == PBS_WAIT_SLOPE) {
			_additions.Clear();
			vp->EnableWorldAdditions();
		} else if (this->state == PBS_WAIT_BUY) {
			_additions.Clear();

			this->ComputeWorldAdditions();
			vp->EnableWorldAdditions();
			vp->EnsureAdditionsAreVisible();
		} else {
			if (this->state != PBS_LONG_BUILD && this->state != PBS_LONG_BUY) vp->DisableWorldAdditions();
		}
	}

	NotifyChange(WC_PATH_BUILDER, ALL_WINDOWS_OF_TYPE, CHG_UPDATE_BUTTONS, 0);
}

void GroceryDashKeyEventHandler::handleKeyEvents(Game *game){


	// WE CAN QUERY INPUT TO SEE WHAT WAS PRESSED
	GameInput *input = game->getInput();

	// LET'S GET THE PLAYER'S PHYSICAL PROPERTIES, IN CASE WE WANT TO CHANGE THEM
	GameStateManager *gsm = game->getGSM();
	TopDownSprite *player = gsm->getSpriteManager()->getPlayer();
	b2Body *playerBody = game->getGSM()->getSpriteManager()->playerBody;
	PhysicalProperties *pp = player->getPhysicalProperties();
	Viewport *viewport = game->getGUI()->getViewport();
	GroceryDashDataLoader* dataLoader = dynamic_cast<GroceryDashDataLoader*>(game->getDataLoader());

	if (!gsm->isGameInProgress()){

		if (input->isKeyDownForFirstTime(ESC_KEY)){
			if (gsm->isAtInGameHelp() == true){
				gsm->goToPauseMenu();
			}
			else{
				if (gsm->isAtSettingsScreen() == true || gsm->isAtAboutScreen() == true || gsm->isAtAchievementsScreen() == true
					|| gsm->isAtHelpScreen() == true || gsm->isAtLevelSelect() == true || gsm->isAtStatsScreen() == true){
					gsm->goToMainMenu();
				}
			}
		}

	}//BRACKET -- !isGameInProgress

	if (gsm->isAtPauseMenu()){

		if (input->isKeyDownForFirstTime(R_KEY))
		{
			gsm->goToGame();
		}
	}



	if (gsm->isGameInProgress())
	{

		if (input->isKeyDownForFirstTime(P_KEY))
		{
			gsm->goToPauseMenu();
		}

		if (input->isKeyDownForFirstTime(L_KEY))
		{
			if ( gsm->isAtItemList() == false){
				gsm->goToItemList();
			}
			else{
				gsm->goToGame();
			}
		}

		if (input->isKeyDownForFirstTime(C_KEY))
		{
			if (gsm->isAtCartScreen() == false){
				gsm->goToCartScreen();
			}
			else{
				gsm->goToGame();
			}
		}

		if (input->isKeyDownForFirstTime(M_KEY)){
			runScript(game);
		}



		// ARROW KEYS PRESSES WILL CONTROL THE PLAYER

		// THE USER MOVES VIA MOUSE BUTTON PRESSES
		if (input->isKeyDown(MOVE_LEFT_CONTROL) && gsm->isPlayerControlDisabled() == false && dataLoader->getIsPayingCashier() == false)
		{
			player->clearPath();
			b2Vec2 moveLeft(-PLAYER_SPEED, 0.0f);
			playerBody->ApplyForceToCenter(moveLeft, true);
			playerBody->SetTransform(playerBody->GetPosition(), (1.0f * PI));
		}
		else if (input->isKeyDown(MOVE_RIGHT_CONTROL) && gsm->isPlayerControlDisabled() == false && dataLoader->getIsPayingCashier() == false)
		{
			player->clearPath();
			b2Vec2 moveRight(PLAYER_SPEED, 0.0f);
			playerBody->ApplyForceToCenter(moveRight, true);
			playerBody->SetTransform(playerBody->GetPosition(), (0.0f * PI));
		}
		else if (input->isKeyDown(MOVE_UP_CONTROL) && gsm->isPlayerControlDisabled() == false && dataLoader->getIsPayingCashier() == false)
		{
			player->clearPath();
			b2Vec2 moveUp(0.0f, -PLAYER_SPEED);
			playerBody->ApplyForceToCenter(moveUp, true);
			playerBody->SetTransform(playerBody->GetPosition(), (1.5f * PI));
			
		}
		else if (input->isKeyDown(MOVE_DOWN_CONTROL) && gsm->isPlayerControlDisabled() == false && dataLoader->getIsPayingCashier() == false)
//.........这里部分代码省略.........

void PaneFrameRenderer::drawQuadRect(Viewport &vp, const mge::Color &color, float x, float y, float w, float h, float thickness) {
	vp.render(Quad(color, x, y, thickness, h));
	vp.render(Quad(color, x, y+h, x+w, -thickness));
	vp.render(Quad(color, x+w, y+h, -thickness, -h));
	vp.render(Quad(color, x+w, y, -w, thickness));
}

void LoadEqualizer::_updateNode( Node* node, const Viewport& vp,
                                 const Range& range )
{
    Node* left = node->left;
    Node* right = node->right;

    LBASSERT( left );
    LBASSERT( right );

    Viewport leftVP = vp;
    Viewport rightVP = vp;
    Range leftRange = range;
    Range rightRange = range;

    switch( node->mode )
    {
      default:
        LBUNIMPLEMENTED;

      case MODE_VERTICAL:
        leftVP.w = vp.w * .5f;
        rightVP.x = leftVP.getXEnd();
        rightVP.w = vp.getXEnd() - rightVP.x;
        node->split = leftVP.getXEnd();
        break;

      case MODE_HORIZONTAL:
        leftVP.h = vp.h * .5f;
        rightVP.y = leftVP.getYEnd();
        rightVP.h = vp.getYEnd() - rightVP.y;
        node->split = leftVP.getYEnd();
        break;

      case MODE_DB:
        leftRange.end = range.start + ( range.end - range.start ) * .5f;
        rightRange.start = leftRange.end;
        node->split = leftRange.end;
        break;
    }

    _update( left, leftVP, leftRange );
    _update( right, rightVP, rightRange );

    node->resources = left->resources + right->resources;

    if( left->resources == 0.f )
    {
        node->maxSize    = right->maxSize;
        node->boundary2i = right->boundary2i;
        node->boundaryf  = right->boundaryf;
        node->resistance2i = right->resistance2i;
        node->resistancef = right->resistancef;
    }
    else if( right->resources == 0.f )
    {
        node->maxSize = left->maxSize;
        node->boundary2i = left->boundary2i;
        node->boundaryf = left->boundaryf;
        node->resistance2i = left->resistance2i;
        node->resistancef = left->resistancef;
    }
    else
    {
        switch( node->mode )
        {
        case MODE_VERTICAL:
            node->maxSize.x() = left->maxSize.x() + right->maxSize.x();
            node->maxSize.y() = LB_MIN( left->maxSize.y(), right->maxSize.y());
            node->boundary2i.x() = left->boundary2i.x()+ right->boundary2i.x();
            node->boundary2i.y() = LB_MAX( left->boundary2i.y(),
                                           right->boundary2i.y());
            node->boundaryf = LB_MAX( left->boundaryf, right->boundaryf );
            node->resistance2i.x() = LB_MAX( left->resistance2i.x(),
                                             right->resistance2i.x( ));
            node->resistance2i.y() = LB_MAX( left->resistance2i.y(),
                                             right->resistance2i.y());
            node->resistancef = LB_MAX( left->resistancef, right->resistancef );
            break;
        case MODE_HORIZONTAL:
            node->maxSize.x() = LB_MIN( left->maxSize.x(), right->maxSize.x());
            node->maxSize.y() = left->maxSize.y() + right->maxSize.y();
            node->boundary2i.x() = LB_MAX( left->boundary2i.x(),
                                           right->boundary2i.x() );
            node->boundary2i.y() = left->boundary2i.y()+ right->boundary2i.y();
            node->boundaryf = LB_MAX( left->boundaryf, right->boundaryf );
            node->resistance2i.x() = LB_MAX( left->resistance2i.x(),
                                             right->resistance2i.x() );
            node->resistance2i.y() = LB_MAX( left->resistance2i.y(),
                                             right->resistance2i.y( ));
            node->resistancef = LB_MAX( left->resistancef, right->resistancef );
            break;
        case MODE_DB:
            node->boundary2i.x() = LB_MAX( left->boundary2i.x(),
                                           right->boundary2i.x() );
            node->boundary2i.y() = LB_MAX( left->boundary2i.y(),
                                           right->boundary2i.y() );
            node->boundaryf = left->boundaryf + right->boundaryf;
            node->resistance2i.x() = LB_MAX( left->resistance2i.x(),
                                             right->resistance2i.x() );
            node->resistance2i.y() = LB_MAX( left->resistance2i.y(),
//.........这里部分代码省略.........

void ImpostorTexture::renderTextures(bool force)
{
#ifdef IMPOSTOR_FILE_SAVE
	TexturePtr renderTexture;
#else
	TexturePtr renderTexture(texture);
	//if we're not using a file image we need to set up a resource loader, so that the texture is regenerated if it's ever unloaded (such as switching between fullscreen and the desktop in win32)
	loader = std::auto_ptr<ImpostorTextureResourceLoader>(new ImpostorTextureResourceLoader(*this));
#endif
	RenderTexture *renderTarget;
	Camera *renderCamera;
	Viewport *renderViewport;
	SceneNode *camNode;

	//Set up RTT texture
	uint32 textureSize = ImpostorPage::impostorResolution;
	if (renderTexture.isNull()) {
	renderTexture = TextureManager::getSingleton().createManual(getUniqueID("ImpostorTexture"), "Impostors",
				TEX_TYPE_2D, textureSize * IMPOSTOR_YAW_ANGLES, textureSize * IMPOSTOR_PITCH_ANGLES, 0, PF_A8R8G8B8, TU_RENDERTARGET, loader.get());
	}
	renderTexture->setNumMipmaps(MIP_UNLIMITED);
	
	//Set up render target
	renderTarget = renderTexture->getBuffer()->getRenderTarget(); 
	renderTarget->setAutoUpdated(false);
	
	//Set up camera
	camNode = sceneMgr->getSceneNode("ImpostorPage::cameraNode");
	renderCamera = sceneMgr->createCamera(getUniqueID("ImpostorCam"));
	camNode->attachObject(renderCamera);
	renderCamera->setLodBias(1000.0f);
	renderViewport = renderTarget->addViewport(renderCamera);
	renderViewport->setOverlaysEnabled(false);
	renderViewport->setClearEveryFrame(true);
	renderViewport->setShadowsEnabled(false);
	renderViewport->setBackgroundColour(ImpostorPage::impostorBackgroundColor);
	
	//Set up scene node
	SceneNode* node = sceneMgr->getSceneNode("ImpostorPage::renderNode");
	
	Ogre::SceneNode* oldSceneNode = entity->getParentSceneNode();
	if (oldSceneNode) {
		oldSceneNode->detachObject(entity);
	}
	node->attachObject(entity);
	node->setPosition(-entityCenter);
	
	//Set up camera FOV
	const Real objDist = entityRadius * 100;
	const Real nearDist = objDist - (entityRadius + 1); 
	const Real farDist = objDist + (entityRadius + 1);
	
	renderCamera->setAspectRatio(1.0f);
	renderCamera->setFOVy(Math::ATan(entityDiameter / objDist));
	renderCamera->setNearClipDistance(nearDist);
	renderCamera->setFarClipDistance(farDist);
	
	//Disable mipmapping (without this, masked textures look bad)
	MaterialManager *mm = MaterialManager::getSingletonPtr();
	FilterOptions oldMinFilter = mm->getDefaultTextureFiltering(FT_MIN);
	FilterOptions oldMagFilter = mm->getDefaultTextureFiltering(FT_MAG);
	FilterOptions oldMipFilter = mm->getDefaultTextureFiltering(FT_MIP);
	mm->setDefaultTextureFiltering(FO_POINT, FO_LINEAR, FO_NONE);

	//Disable fog
	FogMode oldFogMode = sceneMgr->getFogMode();
	ColourValue oldFogColor = sceneMgr->getFogColour();
	Real oldFogDensity = sceneMgr->getFogDensity();
	Real oldFogStart = sceneMgr->getFogStart();
	Real oldFogEnd = sceneMgr->getFogEnd();
	sceneMgr->setFog(Ogre::FOG_EXP2, Ogre::ColourValue(0,0,0,0), 0.0f, 0.0f, 0.0f); //Ember change
	
	//We need to disable all lightning and render it full bright
	Ogre::ColourValue oldAmbientColour = sceneMgr->getAmbientLight();
	sceneMgr->setAmbientLight(ColourValue::White);

	std::vector<Ogre::MovableObject*> lightStore;
	Ogre::SceneManager::MovableObjectIterator lightIterator = sceneMgr->getMovableObjectIterator(Ogre::LightFactory::FACTORY_TYPE_NAME);
	while (lightIterator.hasMoreElements()) {
		Ogre::MovableObject* light = lightIterator.getNext();
		if (light) {
			if (light->getVisible()) {
				lightStore.push_back(light);
				light->setVisible(false);
			}
		}
	}

	// Get current status of the queue mode
	Ogre::SceneManager::SpecialCaseRenderQueueMode OldSpecialCaseRenderQueueMode = sceneMgr->getSpecialCaseRenderQueueMode();
	//Only render the entity
	sceneMgr->setSpecialCaseRenderQueueMode(Ogre::SceneManager::SCRQM_INCLUDE); 
	sceneMgr->addSpecialCaseRenderQueue(group->geom->getRenderQueue() + 1);

	uint8 oldRenderQueueGroup = entity->getRenderQueueGroup();
	entity->setRenderQueueGroup(group->geom->getRenderQueue() + 1);
	bool oldVisible = entity->getVisible();
	entity->setVisible(true);
	float oldMaxDistance = entity->getRenderingDistance();
	entity->setRenderingDistance(0);
//.........这里部分代码省略.........

//
// setup of the image generation stage
//
static void createAcquisitionStage()
{
    size_t num_ports = win->getMFPort()->size();
    if (num_ports == 0)
        return;

    UInt32 width  = win->getWidth();
    UInt32 height = win->getHeight();

    Real32 a = Real32(width) / Real32(height);
    width = UInt32(a*height);

    Viewport* vp = staticVp;

    Node* internalRoot = rootNode(mgr->getRoot());

    //
    // Setup the FBO
    //
    spSimpleFBO.reset(new SimpleFBO(width, height, true, true, true, false));
    
    //spSimpleFBO->fbo()->setPostProcessOnDeactivate(true);
    //spSimpleFBO->colorBuffer(0)->setReadBack(true);

    //
    // We would like to render the scene but won't detach it from its parent.
    // The VisitSubTree allows just that.
    //
    VisitSubTreeUnrecPtr visitor = VisitSubTree::create();
    visitor->setSubTreeRoot(internalRoot);
    NodeUnrecPtr visit_node = makeNodeFor(visitor);

    //
    // The stage object does provide a render target for the frame buffer attachment.
    // SimpleStage has a camera, a background and the left, right, top, bottom
    // fields to let you restrict rendering to a sub-rectangle of your FBO, i.e.
    // they give you a viewport.
    //
    SimpleStageUnrecPtr stage = SimpleStage::create();
    stage->setRenderTarget(spSimpleFBO->fbo());
    stage->setCamera      (vp->getCamera());
    stage->setBackground  (vp->getBackground());
    //
    // Give the stage core a place to live
    //
    NodeUnrecPtr stage_node = makeNodeFor(stage);
    stage_node->addChild(visit_node);

    //
    //   root
    //    |
    //    +- SimpleStage
    //            |
    //            +- VisitSubTree -> ApplicationScene
    //
    NodeUnrecPtr root = makeCoredNode<Group>();
    root->addChild(stage_node);

    //
    // Give the root node a place to live, i.e. create a passive
    // viewport and add it to the window.
    //
    ViewportUnrecPtr stage_viewport = PassiveViewport::create();
    stage_viewport->setRoot      (stage_node);
    stage_viewport->setBackground(vp->getBackground());
    stage_viewport->setCamera    (vp->getCamera());

    win->addPort(stage_viewport);

    mgr->update();
    win->renderNoFinish(mgr->getRenderAction());
    win->frameExit();
    win->deactivate ();

    //ImageUnrecPtr col_image = Image::create();
    //col_image->set(Image::OSG_RGBA_PF, width, height);
        
    //TextureObjChunk* texObj = spSimpleFBO->colorTexObj(0);
    //texObj->getImage()->subImage(0, 0, 0, width, height, 1, col_image);
    //col_image->write("d:/my_Test_opensg.png");

    win->subPortByObj(stage_viewport);
}

void glRect(Viewport v, int inset)
{
  glRecti(v.l+inset,v.b+inset,v.r()-inset,v.t()-inset);
}

void Shadows::recreate()
{
    bool enabled = Settings::Manager::getBool("enabled", "Shadows");

    bool split = Settings::Manager::getBool("split", "Shadows");

    sh::Factory::getInstance ().setGlobalSetting ("shadows", enabled && !split ? "true" : "false");
    sh::Factory::getInstance ().setGlobalSetting ("shadows_pssm", enabled && split ? "true" : "false");

    if (!enabled)
    {
        mSceneMgr->setShadowTechnique(SHADOWTYPE_NONE);
        return;
    }

    int texsize = Settings::Manager::getInt("texture size", "Shadows");
    mSceneMgr->setShadowTextureSize(texsize);

    mSceneMgr->setShadowTechnique(SHADOWTYPE_TEXTURE_MODULATIVE_INTEGRATED);

    // no point light shadows, i'm afraid. might revisit this with Deferred Shading
    mSceneMgr->setShadowTextureCountPerLightType(Light::LT_POINT, 0);

    mSceneMgr->setShadowTextureCountPerLightType(Light::LT_DIRECTIONAL, split ? 3 : 1);
    mSceneMgr->setShadowTextureCount(split ? 3 : 1);

    mSceneMgr->setShadowTextureSelfShadow(true);
    mSceneMgr->setShadowCasterRenderBackFaces(true);
    mSceneMgr->setShadowTextureCasterMaterial("openmw_shadowcaster_default");
    mSceneMgr->setShadowTexturePixelFormat(PF_FLOAT32_R);
    mSceneMgr->setShadowDirectionalLightExtrusionDistance(1000000);

    mShadowFar = split ? Settings::Manager::getInt("split shadow distance", "Shadows") : Settings::Manager::getInt("shadow distance", "Shadows");
    mSceneMgr->setShadowFarDistance(mShadowFar);

    mFadeStart = Settings::Manager::getFloat("fade start", "Shadows");

    ShadowCameraSetupPtr shadowCameraSetup;
    if (split)
    {
        mPSSMSetup = new PSSMShadowCameraSetup();

        // Make sure to keep this in sync with the camera's near clip distance!
        mPSSMSetup->setSplitPadding(mRendering->getCamera()->getNearClipDistance());

        mPSSMSetup->calculateSplitPoints(3, mRendering->getCamera()->getNearClipDistance(), mShadowFar);

        const Real adjustFactors[3] = {64, 64, 64};
        for (int i=0; i < 3; ++i)
        {
            mPSSMSetup->setOptimalAdjustFactor(i, adjustFactors[i]);
            /*if (i==0)
                mSceneMgr->setShadowTextureConfig(i, texsize, texsize, Ogre::PF_FLOAT32_R);
            else if (i ==1)
                mSceneMgr->setShadowTextureConfig(i, texsize/2, texsize/2, Ogre::PF_FLOAT32_R);
            else if (i ==2)
                mSceneMgr->setShadowTextureConfig(i, texsize/4, texsize/4, Ogre::PF_FLOAT32_R);*/
        }

        // Populate from split point 1, not 0, since split 0 isn't useful (usually 0)
        const PSSMShadowCameraSetup::SplitPointList& splitPointList = getPSSMSetup()->getSplitPoints();
        sh::Vector3* splitPoints = new sh::Vector3(splitPointList[1], splitPointList[2], splitPointList[3]);

        sh::Factory::getInstance ().setSharedParameter ("pssmSplitPoints", sh::makeProperty<sh::Vector3>(splitPoints));

        shadowCameraSetup = ShadowCameraSetupPtr(mPSSMSetup);
    }
    else
    {
        LiSPSMShadowCameraSetup* lispsmSetup = new LiSPSMShadowCameraSetup();
        lispsmSetup->setOptimalAdjustFactor(64);
        //lispsmSetup->setCameraLightDirectionThreshold(Degree(0));
        //lispsmSetup->setUseAggressiveFocusRegion(false);
        shadowCameraSetup = ShadowCameraSetupPtr(lispsmSetup);
    }
    mSceneMgr->setShadowCameraSetup(shadowCameraSetup);

    sh::Vector4* shadowFar_fadeStart = new sh::Vector4(mShadowFar, mFadeStart * mShadowFar, 0, 0);
    sh::Factory::getInstance ().setSharedParameter ("shadowFar_fadeStart", sh::makeProperty<sh::Vector4>(shadowFar_fadeStart));

    // Set visibility mask for the shadow render textures
    int visibilityMask = RV_Actors * Settings::Manager::getBool("actor shadows", "Shadows")
                            + (RV_Statics + RV_StaticsSmall) * Settings::Manager::getBool("statics shadows", "Shadows")
                            + RV_Misc * Settings::Manager::getBool("misc shadows", "Shadows")
            + RV_Terrain * (Settings::Manager::getBool("terrain shadows", "Shadows"));
    for (int i = 0; i < (split ? 3 : 1); ++i)
    {
        TexturePtr shadowTexture = mSceneMgr->getShadowTexture(i);
        Viewport* vp = shadowTexture->getBuffer()->getRenderTarget()->getViewport(0);
        vp->setVisibilityMask(visibilityMask);
    }

    // --------------------------------------------------------------------------------------------------------------------
    // --------------------------- Debug overlays to display the content of shadow maps -----------------------------------
    // --------------------------------------------------------------------------------------------------------------------
    /*
    if (Settings::Manager::getBool("debug", "Shadows"))
    {
        OverlayManager& mgr = OverlayManager::getSingleton();
        Overlay* overlay;
//.........这里部分代码省略.........

/**
 * Renders the window using OpenGL.
 * @post win is rendered (In stereo if it is a stereo window).
 */
void D3dDrawManager::renderWindow(D3dWindow* win)
{
   float vp_ox, vp_oy, vp_sx, vp_sy;    // Viewport origin and size
   Viewport::View view;                 // The view for the active viewport

   DisplayPtr the_display = win->getDisplay();   // Get the display for easy access

   // Update the projections for the display using the current app's scale factor
   // NOTE: This relies upon no other thread trying to update this display at the same time
   float scale_factor = mApp->getDrawScaleFactor();
   the_display->updateProjections(scale_factor);

   //mGlDrawManager->setCurrentContext(win->getId());     // Set TSS data of context id
   //mGlDrawManager->currentUserData()->setGlWindow(win);

   // --- SET CONTEXT --- //
   win->makeCurrent();
 

   // VIEWPORT cleaning
   if (win->hasDirtyViewport())
   {
      win->updateViewport();
   }

   // CONTEXT INIT(): Check if we need to call contextInit()
   // - Must call when context is new OR application is new
   if (win->hasDirtyContext())
   {
      // Have dirty context
      //mGlDrawManager->currentUserData()->setUser(NULL);         // Set user data
      //mGlDrawManager->currentUserData()->setProjection(NULL);
      //mGlDrawManager->currentUserData()->setViewport(NULL);     // Set vp data
      //mGlDrawManager->currentUserData()->setGlWindow(win);      // Set the gl window

      mApp->contextInit(win->mRenderDevice);   // Call context init function
      win->setDirtyContext(false);        // All clean now
   }

   // BUFFER PRE DRAW: Check if we need to clear stereo buffers
   if (win->isStereo())
   {
      win->setViewBuffer(Viewport::RIGHT_EYE);
      mApp->bufferPreDraw();
      win->setViewBuffer(Viewport::LEFT_EYE);
      mApp->bufferPreDraw();
   }
   else
   {
      mApp->bufferPreDraw();
   }

   mApp->contextPreDraw();                 // Do any context pre-drawing

   // --- FOR EACH VIEWPORT -- //
   Viewport* viewport = NULL;
   size_t num_vps = the_display->getNumViewports();
   for ( size_t vp_num = 0; vp_num < num_vps; ++vp_num )
   {
      viewport = the_display->getViewport(vp_num);

      // Should viewport be rendered???
      if (viewport->isActive())
      {
         view = viewport->getView();

         // Set the glViewport to draw within
         viewport->getOriginAndSize(vp_ox, vp_oy, vp_sx, vp_sy);
         win->setViewport(vp_ox, vp_oy, vp_sx, vp_sy);

         // Set user information
         //mGlDrawManager->currentUserData()->setUser(viewport->getUser());       // Set user data
         //mGlDrawManager->currentUserData()->setViewport(viewport);              // Set the viewport

         // ---- SURFACE & Simulator --- //
         // if (viewport->isSurface())
         {
            SimViewport*       sim_vp(NULL);
            D3dSimInterfacePtr draw_sim_i;

            if (viewport->isSimulator())
            {
               sim_vp = dynamic_cast<SimViewport*>(viewport);
               vprASSERT(NULL != sim_vp);
               if (NULL != sim_vp)
               {
                  draw_sim_i =
                     boost::dynamic_pointer_cast<D3dSimInterface>(
                        sim_vp->getDrawSimInterface()
                     );
               }
            }

            if ((Viewport::STEREO == view) || (Viewport::LEFT_EYE == view))      // LEFT EYE
            {
               win->setViewBuffer(Viewport::LEFT_EYE);
//.........这里部分代码省略.........

void TreeEqualizer::_assign( Node* node, const Viewport& vp,
                             const Range& range )
{
    LBLOG( LOG_LB2 ) << "assign " << vp << ", " << range << " time "
                     << node->time << " split " << node->split << std::endl;
    LBASSERTINFO( vp.isValid(), vp );
    LBASSERTINFO( range.isValid(), range );
    LBASSERTINFO( node->resources > 0.f || !vp.hasArea() || !range.hasData(),
                  "Assigning work to unused compound: " << vp << ", " << range);

    Compound* compound = node->compound;
    if( compound )
    {
        LBASSERTINFO( vp == Viewport::FULL || range == Range::ALL,
                      "Mixed 2D/DB load-balancing not implemented" );

        compound->setViewport( vp );
        compound->setRange( range );
        LBLOG( LOG_LB2 ) << compound->getChannel()->getName() << " set " << vp
                         << ", " << range << std::endl;
        return;
    }

    switch( node->mode )
    {
    case MODE_VERTICAL:
    {
        // Ensure minimum size
        const Compound* root = getCompound();
        const float pvpW = float( root->getInheritPixelViewport().w );
        const float end = vp.getXEnd();
        const float boundary = float( node->boundary2i.x( )) / pvpW;
        float absoluteSplit = vp.x + vp.w * node->split;

        if( node->left->resources == 0.f )
            absoluteSplit = vp.x;
        else if( node->right->resources == 0.f )
            absoluteSplit = end;
        else if( boundary > 0 )
        {
            const float right = vp.getXEnd() - absoluteSplit;
            const float left = absoluteSplit - vp.x;
            const float maxRight = float( node->right->maxSize.x( )) / pvpW;
            const float maxLeft = float( node->left->maxSize.x( )) / pvpW;

            if( right > maxRight )
                absoluteSplit = end - maxRight;
            else if( left > maxLeft )
                absoluteSplit = vp.x + maxLeft;
            
            if( (absoluteSplit - vp.x) < boundary )
                absoluteSplit = vp.x + boundary;
            if( (end - absoluteSplit) < boundary )
                absoluteSplit = end - boundary;
                
            const uint32_t ratio = uint32_t( absoluteSplit / boundary + .5f );
            absoluteSplit = ratio * boundary;
        }

        absoluteSplit = LB_MAX( absoluteSplit, vp.x );
        absoluteSplit = LB_MIN( absoluteSplit, end);

        node->split = (absoluteSplit - vp.x ) / vp.w;
        LBLOG( LOG_LB2 ) << "Constrained split " << vp << " at X "
                         << node->split << std::endl;

        // traverse children
        Viewport childVP = vp;
        childVP.w = (absoluteSplit - vp.x);
        _assign( node->left, childVP, range );

        childVP.x = childVP.getXEnd();
        childVP.w = end - childVP.x;

        // Fix 2994111: Rounding errors with 2D LB and 16 sources
        //   Floating point rounding may create a width for the 'right'
        //   child which is slightly below the parent width. Correct it.
        while( childVP.getXEnd() < end )
            childVP.w += std::numeric_limits< float >::epsilon();

        _assign( node->right, childVP, range );
        break;
    }

    case MODE_HORIZONTAL:
    {
        // Ensure minimum size
        const Compound* root = getCompound();
        const float pvpH = float( root->getInheritPixelViewport().h );
        const float end = vp.getYEnd();
        const float boundary = float( node->boundary2i.y( )) / pvpH;
        float absoluteSplit = vp.y + vp.h * node->split;

        if( node->left->resources == 0.f )
            absoluteSplit = vp.y;
        else if( node->right->resources == 0.f )
            absoluteSplit = end;
        else if( boundary > 0 )
        {
            const float right = vp.getYEnd() - absoluteSplit;
//.........这里部分代码省略.........

//-----------------------------------------------------------------------
void CompositorInstance::createResources()
{
static size_t dummyCounter = 0;
    freeResources();
    /// Create temporary textures
    /// In principle, temporary textures could be shared between multiple viewports
    /// (CompositorChains). This will save a lot of memory in case more viewports
    /// are composited.
    CompositionTechnique::TextureDefinitionIterator it = mTechnique->getTextureDefinitionIterator();
    while(it.hasMoreElements())
    {
        CompositionTechnique::TextureDefinition *def = it.getNext();

        /// Determine width and height
        int width = def->width.adjust +
            static_cast<int>(mChain->getViewport()->getActualWidth() * def->width.viewport) +
            static_cast<int>(mChain->getViewport()->getActualWidth() * def->width.previous);    // FIXME
        int height = def->height.adjust +
            static_cast<int>(mChain->getViewport()->getActualHeight() * def->height.viewport) +
            static_cast<int>(mChain->getViewport()->getActualHeight() * def->height.previous);  // FIXME
        if (width <= 0)
        {
            // Throw exception? Not that case, because user can't guarantee
            // provides correct parameters always, since it might related to
            // viewport dimensions which can't control by user all the way.
            width = 1;
        }
        if (height <= 0)
        {
            // Throw exception? Not that case, because user can't guarantee
            // provides correct parameters always, since it might related to
            // viewport dimensions which can't control by user all the way.
            height = 1;
        }

        /// Make the tetxure
        TexturePtr tex = TextureManager::getSingleton().createManual(
            "CompositorInstanceTexture"+StringConverter::toString(dummyCounter), 
            ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME, TEX_TYPE_2D, 
            (uint)width, (uint)height, 0, def->format, TU_RENDERTARGET );    
        ++dummyCounter;
        mLocalTextures[def->name] = tex;
        
        /// Set up viewport over entire texture
        RenderTexture *rtt = tex->getBuffer()->getRenderTarget();
        rtt->setAutoUpdated( false );

        Camera* camera = mChain->getViewport()->getCamera();

        // Save last viewport and current aspect ratio
        Viewport* oldViewport = camera->getViewport();
        Real aspectRatio = camera->getAspectRatio();

        Viewport* v = rtt->addViewport( camera );
        v->setClearEveryFrame( false );
        v->setOverlaysEnabled( false );
        v->setBackgroundColour( ColourValue( 0, 0, 0, 0 ) );

        // Should restore aspect ratio, in case of auto aspect ratio
        // enabled, it'll changed when add new viewport.
        camera->setAspectRatio(aspectRatio);
        // Should restore last viewport, i.e. never disturb user code
        // which might based on that.
        camera->_notifyViewport(oldViewport);
    }
    
}

void c2d::ParticleRendererGeometry::viewportChanged(RenderContext& context, const Viewport & viewport)
{
   mConstants.projection.setOrtho(viewport.getWidth(), viewport.getHeight(), -1, 1);

   mpUniformBuffer->set(context, &mConstants, sizeof(mConstants));
}

void GraphicsContext::resizedImplementation(int x, int y, int width, int height)
{
    std::set<osg::Viewport*> processedViewports;

    if (!_traits) return;

    double widthChangeRatio = double(width) / double(_traits->width);
    double heigtChangeRatio = double(height) / double(_traits->height);
    double aspectRatioChange = widthChangeRatio / heigtChangeRatio;


    for(Cameras::iterator itr = _cameras.begin();
        itr != _cameras.end();
        ++itr)
    {
        Camera* camera = (*itr);

        // resize doesn't affect Cameras set up with FBO's.
        if (camera->getRenderTargetImplementation()==osg::Camera::FRAME_BUFFER_OBJECT) continue;

        Viewport* viewport = camera->getViewport();
        if (viewport)
        {
            // avoid processing a shared viewport twice
            if (processedViewports.count(viewport)==0)
            {
                processedViewports.insert(viewport);

                if (viewport->x()==0 && viewport->y()==0 &&
                    viewport->width()>=_traits->width && viewport->height()>=_traits->height)
                {
                    viewport->setViewport(0,0,width,height);
                }
                else
                {
                    viewport->x() = static_cast<osg::Viewport::value_type>(double(viewport->x())*widthChangeRatio);
                    viewport->y() = static_cast<osg::Viewport::value_type>(double(viewport->y())*heigtChangeRatio);
                    viewport->width() = static_cast<osg::Viewport::value_type>(double(viewport->width())*widthChangeRatio);
                    viewport->height() = static_cast<osg::Viewport::value_type>(double(viewport->height())*heigtChangeRatio);
                }
            }
        }

        // if aspect ratio adjusted change the project matrix to suit.
        if (aspectRatioChange != 1.0)
        {
            osg::View* view = camera->getView();
            osg::View::Slave* slave = view ? view->findSlaveForCamera(camera) : 0;


            if (slave)
            {
                if (camera->getReferenceFrame()==osg::Transform::RELATIVE_RF)
                {
                    switch(view->getCamera()->getProjectionResizePolicy())
                    {
                        case(osg::Camera::HORIZONTAL): slave->_projectionOffset *= osg::Matrix::scale(1.0/aspectRatioChange,1.0,1.0); break;
                        case(osg::Camera::VERTICAL): slave->_projectionOffset *= osg::Matrix::scale(1.0, aspectRatioChange,1.0); break;
                        default: break;
                    }
                }
                else
                {
                    switch(camera->getProjectionResizePolicy())
                    {
                        case(osg::Camera::HORIZONTAL): camera->getProjectionMatrix() *= osg::Matrix::scale(1.0/aspectRatioChange,1.0,1.0); break;
                        case(osg::Camera::VERTICAL): camera->getProjectionMatrix() *= osg::Matrix::scale(1.0, aspectRatioChange,1.0); break;
                        default: break;
                    }
                }
            }
            else
            {
                Camera::ProjectionResizePolicy policy = view ? view->getCamera()->getProjectionResizePolicy() : camera->getProjectionResizePolicy();
                switch(policy)
                {
                    case(osg::Camera::HORIZONTAL): camera->getProjectionMatrix() *= osg::Matrix::scale(1.0/aspectRatioChange,1.0,1.0); break;
                    case(osg::Camera::VERTICAL): camera->getProjectionMatrix() *= osg::Matrix::scale(1.0, aspectRatioChange,1.0); break;
                    default: break;
                }

                osg::Camera* master = view ? view->getCamera() : 0;
                if (view && camera==master)
                {
                    for(unsigned int i=0; i<view->getNumSlaves(); ++i)
                    {
                        osg::View::Slave& child = view->getSlave(i);
                        if (child._camera.valid() && child._camera->getReferenceFrame()==osg::Transform::RELATIVE_RF)
                        {
                            // scale the slaves by the inverse of the change that has been applied to master, to avoid them be
                            // scaled twice (such as when both master and slave are on the same GraphicsContexts) or by the wrong scale
                            // when master and slave are on different GraphicsContexts.
                            switch(policy)
                            {
                                case(osg::Camera::HORIZONTAL): child._projectionOffset *= osg::Matrix::scale(aspectRatioChange,1.0,1.0); break;
                                case(osg::Camera::VERTICAL): child._projectionOffset *= osg::Matrix::scale(1.0, 1.0/aspectRatioChange,1.0); break;
                                default: break;
                            }
                        }
                    }
//.........这里部分代码省略.........

util::PointViewportPx projection::toPointViewportPx(const Viewport& viewport, const util::PointWorldCoord& world_coord)
{
    // Returns the world cooridate converted into a viewport pixel.
    return viewport.toPointViewportPx(fetch(viewport).toPointWorldPx(viewport, world_coord));
}