reduce cleanning clear buffer times (#19131)

cocos/2d/CCCamera.cpp

@@ -107,17 +107,8 @@ const Camera* Camera::getVisitingCamera()
 // end static methods
 
 Camera::Camera()
-: _scene(nullptr)
-, _viewProjectionDirty(true)
-, _viewProjectionUpdated(false)
-, _cameraFlag(1)
-, _frustumDirty(true)
-, _depth(-1)
-, _fbo(nullptr)
 {
     _frustum.setClipZ(true);
-    _clearBrush = CameraBackgroundBrush::createDepthBrush(1.f);
-    _clearBrush->retain();
 }
 
 Camera::~Camera()

cocos/2d/CCCamera.h

@@ -121,8 +121,8 @@ public:
     Camera::Type getType() const { return _type; }
 
     /**get & set Camera flag*/
-    CameraFlag getCameraFlag() const { return (CameraFlag)_cameraFlag; }
-    void setCameraFlag(CameraFlag flag) { _cameraFlag = (unsigned short)flag; }
+    CameraFlag getCameraFlag() const { return _cameraFlag; }
+    void setCameraFlag(CameraFlag flag) { _cameraFlag = flag; }
 
     /**
     * Make Camera looks at target
@@ -309,7 +309,7 @@ protected:
     static Camera* _visitingCamera;
     static experimental::Viewport _defaultViewport;
 
-    Scene* _scene; //Scene camera belongs to
+    Scene* _scene = nullptr; //Scene camera belongs to
     Mat4 _projection;
     mutable Mat4 _view;
     mutable Mat4 _viewInv;
@@ -322,17 +322,17 @@ protected:
     float _aspectRatio;
     float _nearPlane;
     float _farPlane;
-    mutable bool  _viewProjectionDirty;
-    bool _viewProjectionUpdated; //Whether or not the viewprojection matrix was updated since the last frame.
-    unsigned short _cameraFlag; // camera flag
+    mutable bool  _viewProjectionDirty = true;
+    bool _viewProjectionUpdated = false; //Whether or not the viewprojection matrix was updated since the last frame.
+    CameraFlag _cameraFlag = CameraFlag::DEFAULT; // camera flag
     mutable Frustum _frustum;   // camera frustum
-    mutable bool _frustumDirty;
-    int8_t  _depth;                 //camera depth, the depth of camera with CameraFlag::DEFAULT flag is 0 by default, a camera with larger depth is drawn on top of camera with smaller depth
+    mutable bool _frustumDirty = true;
+    int8_t  _depth = -1;                 //camera depth, the depth of camera with CameraFlag::DEFAULT flag is 0 by default, a camera with larger depth is drawn on top of camera with smaller depth
 
-    CameraBackgroundBrush* _clearBrush; //brush used to clear the back ground
+    CameraBackgroundBrush* _clearBrush = nullptr; //brush used to clear the back ground
 
     experimental::Viewport _viewport;
-    experimental::FrameBuffer* _fbo;
+    experimental::FrameBuffer* _fbo = nullptr;
     GLint _oldViewport[4];
 };
 

cocos/base/CCDirector.cpp

@@ -115,9 +115,6 @@ Director* Director::getInstance()
 }
 
 Director::Director()
-: _deltaTimePassedByCaller(false)
-, _isStatusLabelUpdated(true)
-, _invalid(true)
 {
 }
 
@@ -125,43 +122,11 @@ bool Director::init(void)
 {
     setDefaultValues();
 
-    // scenes
-    _runningScene = nullptr;
-    _nextScene = nullptr;
-
-    _notificationNode = nullptr;
-
     _scenesStack.reserve(15);
 
     // FPS
-    _accumDt = 0.0f;
-    _frameRate = 0.0f;
-    _FPSLabel = _drawnBatchesLabel = _drawnVerticesLabel = nullptr;
-    _totalFrames = 0;
     _lastUpdate = std::chrono::steady_clock::now();
     
-    _secondsPerFrame = 1.0f;
-    _frames = 0;
-
-    // paused ?
-    _paused = false;
-
-    // purge ?
-    _purgeDirectorInNextLoop = false;
-    
-    // restart ?
-    _restartDirectorInNextLoop = false;
-    
-    // invalid ?
-    _invalid = false;
-
-    _winSizeInPoints = Size::ZERO;
-
-    _openGLView = nullptr;
-    _defaultFBO = nullptr;
-    
-    _contentScaleFactor = 1.0f;
-
     _console = new (std::nothrow) Console;
 
     // scheduler
@@ -214,7 +179,6 @@ Director::~Director(void)
     CC_SAFE_RELEASE(_notificationNode);
     CC_SAFE_RELEASE(_scheduler);
     CC_SAFE_RELEASE(_actionManager);
-    CC_SAFE_DELETE(_defaultFBO);
 
     CC_SAFE_RELEASE(_beforeSetNextScene);
     CC_SAFE_RELEASE(_afterSetNextScene);
@@ -437,9 +401,6 @@ void Director::setOpenGLView(GLView *openGLView)
         {
             _eventDispatcher->setEnabled(true);
         }
-        
-        _defaultFBO = experimental::FrameBuffer::getOrCreateDefaultFBO(_openGLView);
-        _defaultFBO->retain();
     }
 }
 
@@ -770,9 +731,6 @@ void Director::setDepthTest(bool on)
 void Director::setClearColor(const Color4F& clearColor)
 {
     _renderer->setClearColor(clearColor);
-    auto defaultFBO = experimental::FrameBuffer::getOrCreateDefaultFBO(_openGLView);
-    
-    if(defaultFBO) defaultFBO->setClearColor(clearColor);
 }
 
 static void GLToClipTransform(Mat4 *transformOut)

cocos/base/CCDirector.h

@@ -591,10 +591,10 @@ protected:
     virtual void setAnimationInterval(float interval, SetIntervalReason reason);
 
     void purgeDirector();
-    bool _purgeDirectorInNextLoop; // this flag will be set to true in end()
+    bool _purgeDirectorInNextLoop = false; // this flag will be set to true in end()
     
     void restartDirector();
-    bool _restartDirectorInNextLoop; // this flag will be set to true in restart()
+    bool _restartDirectorInNextLoop = false; // this flag will be set to true in restart()
     
     void setNextScene();
     
@@ -625,61 +625,66 @@ protected:
     /** Scheduler associated with this director
      @since v2.0
      */
-    Scheduler *_scheduler;
+    Scheduler *_scheduler = nullptr;
     
     /** ActionManager associated with this director
      @since v2.0
      */
-    ActionManager *_actionManager;
+    ActionManager *_actionManager = nullptr;
     
     /** EventDispatcher associated with this director
      @since v3.0
      */
-    EventDispatcher* _eventDispatcher;
-    EventCustom *_eventProjectionChanged, *_eventBeforeDraw, *_eventAfterDraw, *_eventAfterVisit, *_eventBeforeUpdate, *_eventAfterUpdate, *_eventResetDirector, *_beforeSetNextScene, *_afterSetNextScene;
+    EventDispatcher* _eventDispatcher = nullptr;
+    EventCustom* _eventProjectionChanged = nullptr;
+    EventCustom* _eventBeforeDraw =nullptr; 
+    EventCustom* _eventAfterDraw = nullptr;
+    EventCustom* _eventAfterVisit = nullptr;
+    EventCustom* _eventBeforeUpdate = nullptr;
+    EventCustom* _eventAfterUpdate = nullptr;
+    EventCustom* _eventResetDirector = nullptr;
+    EventCustom* _beforeSetNextScene = nullptr;
+    EventCustom* _afterSetNextScene = nullptr;
         
     /* delta time since last tick to main loop */
-	float _deltaTime;
-    bool _deltaTimePassedByCaller;
+	float _deltaTime = 0.0f;
+    bool _deltaTimePassedByCaller = false;
     
     /* The _openGLView, where everything is rendered, GLView is a abstract class,cocos2d-x provide GLViewImpl
      which inherit from it as default renderer context,you can have your own by inherit from it*/
-    GLView *_openGLView;
+    GLView *_openGLView = nullptr;
 
     //texture cache belongs to this director
-    TextureCache *_textureCache;
+    TextureCache *_textureCache = nullptr;
 
-    float _animationInterval;
-    float _oldAnimationInterval;
+    float _animationInterval = 0.0f;
+    float _oldAnimationInterval = 0.0f;
     
-    /* landscape mode ? */
-    bool _landscape;
+    bool _displayStats = false;
+    float _accumDt = 0.0f;
+    float _frameRate = 0.0f;
     
-    bool _displayStats;
-    float _accumDt;
-    float _frameRate;
-    
-    LabelAtlas *_FPSLabel;
-    LabelAtlas *_drawnBatchesLabel;
-    LabelAtlas *_drawnVerticesLabel;
+    LabelAtlas *_FPSLabel = nullptr;
+    LabelAtlas *_drawnBatchesLabel = nullptr;
+    LabelAtlas *_drawnVerticesLabel = nullptr;
     
     /** Whether or not the Director is paused */
-    bool _paused;
+    bool _paused = false;
 
     /* How many frames were called since the director started */
-    unsigned int _totalFrames;
-    unsigned int _frames;
-    float _secondsPerFrame;
+    unsigned int _totalFrames = 0;
+    unsigned int _frames = 0;
+    float _secondsPerFrame = 1.f;
     
     /* The running scene */
-    Scene *_runningScene;
+    Scene *_runningScene = nullptr;
     
     /* will be the next 'runningScene' in the next frame
      nextScene is a weak reference. */
-    Scene *_nextScene;
+    Scene *_nextScene = nullptr;
     
     /* If true, then "old" scene will receive the cleanup message */
-    bool _sendCleanupToScene;
+    bool _sendCleanupToScene = false;
 
     /* scheduled scenes */
     Vector<Scene*> _scenesStack;
@@ -688,36 +693,33 @@ protected:
     std::chrono::steady_clock::time_point _lastUpdate;
 
     /* whether or not the next delta time will be zero */
-    bool _nextDeltaTimeZero;
+    bool _nextDeltaTimeZero = false;
     
     /* projection used */
-    Projection _projection;
+    Projection _projection = Projection::DEFAULT;
 
     /* window size in points */
-    Size _winSizeInPoints;
+    Size _winSizeInPoints = Size::ZERO;
     
     /* content scale factor */
-    float _contentScaleFactor;
+    float _contentScaleFactor = 1.0f;
 
     /* This object will be visited after the scene. Useful to hook a notification node */
-    Node *_notificationNode;
+    Node *_notificationNode = nullptr;
 
     /* Renderer for the Director */
-    Renderer *_renderer;
-    
-    /* Default FrameBufferObject*/
-    experimental::FrameBuffer* _defaultFBO;
+    Renderer *_renderer = nullptr;
 
     /* Console for the director */
-    Console *_console;
+    Console *_console = nullptr;
 
-    bool _isStatusLabelUpdated;
+    bool _isStatusLabelUpdated = true;
 
     /* cocos2d thread id */
     std::thread::id _cocos2d_thread_id;
 
     /* whether or not the director is in a valid state */
-    bool _invalid;
+    bool _invalid = false;
 
     // GLView will recreate stats labels to fit visible rect
     friend class GLView;

tests/cpp-empty-test/proj.ios/AppController.mm

@@ -26,7 +26,7 @@
 #import "AppController.h"
 #import "cocos2d.h"
 #import "platform/ios/CCEAGLView-ios.h"
-#import "AppDelegate.h"
+#import "../Classes/AppDelegate.h"
 #import "RootViewController.h"
 
 @implementation AppController

tests/cpp-tests/proj.ios/Classes/testsAppDelegate.mm

@@ -28,7 +28,7 @@
 
 #import "platform/ios/CCEAGLView-ios.h"
 #import "cocos2d.h"
-#import "AppDelegate.h"
+#import "../../Classes/AppDelegate.h"
 #import "RootViewController.h"
 
 @implementation AppController