c910602376
This is a reland of 4e385e21a4
Original change's description:
> Minimal iOS app: Perform present subsequent to flush
>
> Currently the backbuffer present is not on the same MTLCommandQueue
> as the flush from Skia, which probably means that it's happening
> concurrently. This can overwhelm the GPU. This CL submits the present
> to the same queue as the flush.
>
> Change-Id: Ibaf805553931c9dc46368b362a2391425ae3e60e
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/248557
> Reviewed-by: Hal Canary <halcanary@skia.org>
> Commit-Queue: Jim Van Verth <jvanverth@google.com>
Change-Id: I118047630b8936838d5da8ef4307ad5c5e8d2ade
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/248562
Reviewed-by: Hal Canary <halcanary@skia.org>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
50 lines
1.4 KiB
Objective-C
50 lines
1.4 KiB
Objective-C
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#ifndef SkottieMtkView_DEFINED
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#define SkottieMtkView_DEFINED
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#import <MetalKit/MetalKit.h>
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#import <UIKit/UIKit.h>
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class GrContext;
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@interface SkottieMtkView : MTKView
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// Must be set to a Metal-backed GrContext in order to draw.
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// e.g.: use SkMetalDeviceToGrContext().
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@property (assign) GrContext* grContext; // non-owning pointer.
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// Must be set to a valid MTLCommandQueue. Will be used to present.
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@property (assign) id<MTLCommandQueue> queue; // non-owning pointer.
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// When set, pauses at end of loop.
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@property (assign) BOOL stopAtEnd;
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// Override of the MTKView interface. Uses Skia+Skottie+Metal to draw.
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- (void)drawRect:(CGRect)rect;
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// Load an animation from a Lottie JSON file. Returns Yes on success.
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- (BOOL)loadAnimation:(NSData*)d;
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// Jump to the specified location in the animation.
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- (void)seek:(float)seconds;
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// Toggle paused mode. Return paused state.
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- (BOOL)togglePaused;
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// Return the current paused state.
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- (BOOL)isPaused;
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// Return the default size of the Lottie animation.
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- (CGSize)size;
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// Return the length of the animation loop.
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- (float)animationDurationSeconds;
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// Return the current position in the animation in seconds (between zero and
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// animationDurationSeconds).
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- (float)currentTime;
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@end
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#endif // SkottieMtkView_DEFINED
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