63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
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// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_SHELL_PLATFORM_DARWIN_COMMON_FRAMEWORK_HEADERS_FLUTTERTEXTURE_H_
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#define FLUTTER_SHELL_PLATFORM_DARWIN_COMMON_FRAMEWORK_HEADERS_FLUTTERTEXTURE_H_
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#import <CoreMedia/CoreMedia.h>
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#import <Foundation/Foundation.h>
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#import "FlutterMacros.h"
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NS_ASSUME_NONNULL_BEGIN
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FLUTTER_DARWIN_EXPORT
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/**
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* Represents a texture that can be shared with Flutter.
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*
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* See also: https://github.com/flutter/plugins/tree/master/packages/camera
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*/
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@protocol FlutterTexture <NSObject>
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/** Copy the contents of the texture into a `CVPixelBuffer`. */
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- (CVPixelBufferRef _Nullable)copyPixelBuffer;
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/**
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* Called when the texture is unregistered.
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*
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* Called on the raster thread.
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*/
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@optional
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- (void)onTextureUnregistered:(NSObject<FlutterTexture>*)texture;
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@end
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FLUTTER_DARWIN_EXPORT
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/**
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* A collection of registered `FlutterTexture`'s.
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*/
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@protocol FlutterTextureRegistry <NSObject>
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/**
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* Registers a `FlutterTexture` for usage in Flutter and returns an id that can be used to reference
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* that texture when calling into Flutter with channels. Textures must be registered on the
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* platform thread. On success returns the pointer to the registered texture, else returns 0.
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*/
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- (int64_t)registerTexture:(NSObject<FlutterTexture>*)texture;
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/**
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* Notifies Flutter that the content of the previously registered texture has been updated.
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*
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* This will trigger a call to `-[FlutterTexture copyPixelBuffer]` on the raster thread.
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*/
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- (void)textureFrameAvailable:(int64_t)textureId;
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/**
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* Unregisters a `FlutterTexture` that has previously regeistered with `registerTexture:`. Textures
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* must be unregistered on the platform thread.
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*
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* @param textureId The result that was previously returned from `registerTexture:`.
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*/
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- (void)unregisterTexture:(int64_t)textureId;
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@end
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NS_ASSUME_NONNULL_END
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#endif // FLUTTER_SHELL_PLATFORM_DARWIN_COMMON_FRAMEWORK_HEADERS_FLUTTERTEXTURE_H_
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