FlutterMetalLayer Class Reference

#import <FlutterMetalLayer.h>

Inheritance diagram for FlutterMetalLayer:

Instance Methods
(id< MTLDevice > preferredDevice)	- API_AVAILABLE
(nullable id< CAMetalDrawable >)	- nextDrawable

Class Methods
(BOOL)	+ enabled

Properties
id< MTLDevice >	device
MTLPixelFormat	pixelFormat
BOOL	framebufferOnly
CGSize	drawableSize
BOOL	presentsWithTransaction
CGColorSpaceRef	colorspace

Detailed Description

Drop-in replacement (as far as Flutter is concerned) for CAMetalLayer that can present with transaction from a background thread.

Properties and method declarations must exactly match those in the CAMetalLayer interface declaration.

Definition at line 15 of file FlutterMetalLayer.h.

Method Documentation

API_AVAILABLE

- (id<MTLDevice> preferredDevice) API_AVAILABLE		(macos(10.15))
		(ios(13.0))
		(tvos(13.0))

enabled

+ (BOOL) enabled

Returns whether the Metal layer is enabled. This is controlled by FLTUseFlutterMetalLayer value in Info.plist.

Definition at line 439 of file FlutterMetalLayer.mm.

                {
  static BOOL enabled = YES;
  static BOOL didCheckInfoPlist = NO;
  if (!didCheckInfoPlist) {
    didCheckInfoPlist = YES;
    NSNumber* use_flutter_metal_layer =
        [[NSBundle mainBundle] objectForInfoDictionaryKey:@"FLTUseFlutterMetalLayer"];
    if (use_flutter_metal_layer != nil && ![use_flutter_metal_layer boolValue]) {
      enabled = NO;
    }
  }
  return enabled;
}

nextDrawable

- (id< CAMetalDrawable >) nextDrawable

Definition at line 385 of file FlutterMetalLayer.mm.

                                    {
  FlutterTexture* texture = [self nextTexture];
  if (texture == nil) {
    return nil;
  }
  FlutterDrawable* drawable = [[FlutterDrawable alloc] initWithTexture:texture
                                                                 layer:self
                                                            drawableId:_nextDrawableId++];
  return drawable;
}

Property Documentation

colorspace

- (CGColorSpaceRef) colorspace

readwriteatomicassign

Definition at line 25 of file FlutterMetalLayer.h.

device

- (id<MTLDevice>) device

readwriteatomicretain

Definition at line 17 of file FlutterMetalLayer.h.

drawableSize

- (CGSize) drawableSize

readwriteatomic

Definition at line 23 of file FlutterMetalLayer.h.

framebufferOnly

- (BOOL) framebufferOnly

readwriteatomic

Definition at line 22 of file FlutterMetalLayer.h.

pixelFormat

- (MTLPixelFormat) pixelFormat

readwriteatomic

Definition at line 21 of file FlutterMetalLayer.h.

presentsWithTransaction

- (BOOL) presentsWithTransaction

readwriteatomic

Definition at line 24 of file FlutterMetalLayer.h.

---

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

• shell/platform/darwin/ios/framework/Source/FlutterMetalLayer.h
• shell/platform/darwin/ios/framework/Source/FlutterMetalLayer.mm