FlutterDarwinContextMetalImpeller Class Reference

#import <FlutterDarwinContextMetalImpeller.h>

Inheritance diagram for FlutterDarwinContextMetalImpeller:

Instance Methods
(instancetype)	- init:
(FlutterDarwinExternalTextureMetal *)	- createExternalTextureWithIdentifier:texture:

Properties
std::shared_ptr< impeller::ContextMTL >	context
fml::CFRef< CVMetalTextureCacheRef >	textureCache

Detailed Description

Provides skia GrContexts that are shared between iOS and macOS embeddings.

Definition at line 23 of file FlutterDarwinContextMetalImpeller.h.

Method Documentation

createExternalTextureWithIdentifier:texture:

- (FlutterDarwinExternalTextureMetal *) createExternalTextureWithIdentifier:		(int64_t)	textureID
texture:		(NSObject<FlutterTexture>*)	texture

Creates an external texture with the specified ID and contents.

Definition at line 22 of file FlutterDarwinContextMetalImpeller.mm.

                                       :(int64_t)textureID
                                texture:(NSObject<FlutterTexture>*)texture {
  return [[FlutterDarwinExternalTextureMetal alloc] initWithTextureCache:_textureCache
                                                               textureID:textureID
                                                                 texture:texture
                                                          enableImpeller:YES];
}

init:

- (instancetype) init:

(const std::shared_ptr<const fml::SyncSwitch>&)

is_gpu_disabled_sync_switch

Initializes a FlutterDarwinContextMetalImpeller.

Definition at line 22 of file FlutterDarwinContextMetalImpeller.mm.

                    :(const std::shared_ptr<const fml::SyncSwitch>&)is_gpu_disabled_sync_switch {
  self = [super init];
  if (self != nil) {
    _context = CreateImpellerContext(is_gpu_disabled_sync_switch);
    id<MTLDevice> device = _context->GetMTLDevice();
    if (!device) {
      FML_DLOG(ERROR) << "Could not acquire Metal device.";
      return nil;
    }
 
    CVMetalTextureCacheRef textureCache;
    CVReturn cvReturn = CVMetalTextureCacheCreate(kCFAllocatorDefault,  // allocator
                                                  nil,           // cache attributes (nil default)
                                                  device,        // metal device
                                                  nil,           // texture attributes (nil default)
                                                  &textureCache  // [out] cache
    );
 
    if (cvReturn != kCVReturnSuccess) {
      FML_DLOG(ERROR) << "Could not create Metal texture cache.";
      return nil;
    }
    _textureCache.Reset(textureCache);
  }
  return self;
}

Property Documentation

context

- (shared_ptr<)impeller:

readnonatomicassign

Impeller context.

Definition at line 40 of file FlutterDarwinContextMetalImpeller.h.

textureCache

- (CFRef<CVMetalTextureCacheRef>) FlutterDarwinContextMetalImpeller:

readnonatomicassign

Definition at line 45 of file FlutterDarwinContextMetalImpeller.h.

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

• shell/platform/darwin/graphics/FlutterDarwinContextMetalImpeller.h
• shell/platform/darwin/graphics/FlutterDarwinContextMetalImpeller.mm