Flutter iOS Embedder
ios_surface_metal_impeller.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef FLUTTER_SHELL_PLATFORM_DARWIN_IOS_IOS_SURFACE_METAL_IMPELLER_H_
6 #define FLUTTER_SHELL_PLATFORM_DARWIN_IOS_IOS_SURFACE_METAL_IMPELLER_H_
7 
8 #include "flutter/fml/macros.h"
9 #include "flutter/shell/gpu/gpu_surface_metal_delegate.h"
11 
12 @class CAMetalLayer;
13 
14 namespace impeller {
15 class Context;
16 } // namespace impeller
17 
18 namespace flutter {
19 
20 class SK_API_AVAILABLE_CA_METAL_LAYER IOSSurfaceMetalImpeller final
21  : public IOSSurface,
22  public GPUSurfaceMetalDelegate {
23  public:
24  IOSSurfaceMetalImpeller(const fml::scoped_nsobject<CAMetalLayer>& layer,
25  const std::shared_ptr<IOSContext>& context);
26 
27  // |IOSSurface|
29 
30  private:
31  fml::scoped_nsobject<CAMetalLayer> layer_;
32  const std::shared_ptr<impeller::Context> impeller_context_;
33  bool is_valid_ = false;
34 
35  // |IOSSurface|
36  bool IsValid() const override;
37 
38  // |IOSSurface|
39  void UpdateStorageSizeIfNecessary() override;
40 
41  // |IOSSurface|
42  std::unique_ptr<Surface> CreateGPUSurface(GrDirectContext* gr_context) override;
43 
44  // |GPUSurfaceMetalDelegate|
45  GPUCAMetalLayerHandle GetCAMetalLayer(const SkISize& frame_info) const override;
46 
47  // |GPUSurfaceMetalDelegate|
48  bool PresentDrawable(GrMTLHandle drawable) const override;
49 
50  // |GPUSurfaceMetalDelegate|
51  GPUMTLTextureInfo GetMTLTexture(const SkISize& frame_info) const override;
52 
53  // |GPUSurfaceMetalDelegate|
54  bool PresentTexture(GPUMTLTextureInfo texture) const override;
55 
56  // |GPUSurfaceMetalDelegate|
57  bool AllowsDrawingWhenGpuDisabled() const override;
58 
59  FML_DISALLOW_COPY_AND_ASSIGN(IOSSurfaceMetalImpeller);
60 };
61 
62 } // namespace flutter
63 
64 #endif // FLUTTER_SHELL_PLATFORM_DARWIN_IOS_IOS_SURFACE_METAL_IMPELLER_H_
flutter::IOSSurface
Definition: ios_surface.h:25
flutter::IOSSurfaceMetalImpeller
Definition: ios_surface_metal_impeller.h:20
ios_surface.h
flutter
Definition: accessibility_bridge.h:28
impeller
Definition: ios_context.h:21