Flutter Impeller
lazy_drawable_holder.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_IMPELLER_RENDERER_BACKEND_METAL_LAZY_DRAWABLE_HOLDER_H_
6 #define FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_LAZY_DRAWABLE_HOLDER_H_
7 
8 #include <Metal/Metal.h>
9 
10 #include <future>
13 
14 @protocol CAMetalDrawable;
15 @class CAMetalLayer;
16 
17 namespace impeller {
18 
19 /// @brief Create a deferred drawable from a CAMetalLayer.
20 std::shared_future<id<CAMetalDrawable>> GetDrawableDeferred(
21  CAMetalLayer* layer);
22 
23 /// @brief Create a TextureMTL from a deferred drawable.
24 ///
25 /// This function is safe to call multiple times and will only call
26 /// nextDrawable once.
27 std::shared_ptr<TextureMTL> CreateTextureFromDrawableFuture(
28  TextureDescriptor desc,
29  const std::shared_future<id<CAMetalDrawable>>& drawble_future);
30 
31 } // namespace impeller
32 
33 #endif // FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_LAZY_DRAWABLE_HOLDER_H_
texture_descriptor.h
impeller::CreateTextureFromDrawableFuture
std::shared_ptr< TextureMTL > CreateTextureFromDrawableFuture(TextureDescriptor desc, const std::shared_future< id< CAMetalDrawable >> &drawble_future)
Create a TextureMTL from a deferred drawable.
Definition: lazy_drawable_holder.mm:41
impeller::GetDrawableDeferred
std::shared_future< id< CAMetalDrawable > > GetDrawableDeferred(CAMetalLayer *layer)
Create a deferred drawable from a CAMetalLayer.
Definition: lazy_drawable_holder.mm:23
texture_mtl.h
impeller
Definition: aiks_blur_unittests.cc:20