FlutterTextureRegistrar Class Reference

#import <FlutterTextureRegistrar.h>

Inheritance diagram for FlutterTextureRegistrar:

Instance Methods
(nullable instancetype)	- NS_UNAVAILABLE
(nullable instancetype)	- initWithDelegate:engine:
(nullable FlutterExternalTexture *)	- getTextureWithID:
(instancetype)	- initWithDelegate:engine: [implementation]
(int64_t)	- registerTexture: [implementation]
(void)	- textureFrameAvailable: [implementation]
(void)	- unregisterTexture: [implementation]
Instance Methods inherited from <FlutterTextureRegistry>
(int64_t)	- registerTexture:
(void)	- textureFrameAvailable:
(void)	- unregisterTexture:

Class Methods
(nullable instancetype)	+ NS_UNAVAILABLE

Detailed Description

Definition at line 28 of file FlutterTextureRegistrar.h.

Method Documentation

getTextureWithID:

- (FlutterExternalTexture *) getTextureWithID:

(int64_t)

textureID

Definition at line 15 of file FlutterTextureRegistrar.mm.

                                           :(int64_t)textureID {
  return _textures[@(textureID)];
}

initWithDelegate:engine: [1/2]

- (instancetype) initWithDelegate: (id<FlutterTextureRegistrarDelegate>)  delegate engine: (FlutterEngine*)  engine

implementation

Definition at line 15 of file FlutterTextureRegistrar.mm.

                                :(id<FlutterTextureRegistrarDelegate>)delegate
                          engine:(FlutterEngine*)engine {
  if (self = [super init]) {
    _delegate = delegate;
    _flutterEngine = engine;
    _textures = [[NSMutableDictionary alloc] init];
  }
  return self;
}

initWithDelegate:engine: [2/2]

- (nullable instancetype) initWithDelegate:		(nonnull id< FlutterTextureRegistrarDelegate >)	delegate
engine:		(nonnull FlutterEngine *)	NS_DESIGNATED_INITIALIZER

NS_UNAVAILABLE [1/2]

- (nullable instancetype) NS_UNAVAILABLE

NS_UNAVAILABLE [2/2]

+ (nullable instancetype) NS_UNAVAILABLE

registerTexture:

- (int64_t) registerTexture: (id<FlutterTexture>)  texture

implementation

Definition at line 15 of file FlutterTextureRegistrar.mm.

                          :(id<FlutterTexture>)texture {
  FlutterExternalTexture* externalTexture = [_delegate onRegisterTexture:texture];
  int64_t textureID = [externalTexture textureID];
  BOOL success = [_flutterEngine registerTextureWithID:textureID];
  if (success) {
    _textures[@(textureID)] = externalTexture;
    return textureID;
  } else {
    NSLog(@"Unable to register the texture with id: %lld.", textureID);
    return 0;
  }
}

textureFrameAvailable:

- (void) textureFrameAvailable: (int64_t)  textureId

implementation

Notifies Flutter that the content of the previously registered texture has been updated.

This will trigger a call to -[FlutterTexture copyPixelBuffer] on the raster thread.

Reimplemented from <FlutterTextureRegistry>.

Definition at line 15 of file FlutterTextureRegistrar.mm.

                             :(int64_t)textureID {
  BOOL success = [_flutterEngine markTextureFrameAvailable:textureID];
  if (!success) {
    NSLog(@"Unable to mark texture with id %lld as available.", textureID);
  }
}

unregisterTexture:

- (void) unregisterTexture: (int64_t)  textureId

implementation

Unregisters a FlutterTexture that has previously regeistered with registerTexture:. Textures must be unregistered on the platform thread.

Parameters

textureId

The result that was previously returned from registerTexture:.

Reimplemented from <FlutterTextureRegistry>.

Definition at line 15 of file FlutterTextureRegistrar.mm.

                         :(int64_t)textureID {
  bool success = [_flutterEngine unregisterTextureWithID:textureID];
  if (success) {
    [_textures removeObjectForKey:@(textureID)];
  } else {
    NSLog(@"Unable to unregister texture with id: %lld.", textureID);
  }
}

---

The documentation for this class was generated from the following files:

• shell/platform/darwin/macos/framework/Source/FlutterTextureRegistrar.h
• shell/platform/darwin/macos/framework/Source/FlutterTextureRegistrar.mm