react-native-vision-camera/ios/Skia Render Layer/PreviewSkiaView.mm
Marc Rousavy 4ad4804e51
chore: Upgrade Skia to new Ganesh Rendering Pipeline and RN to 0.72 (#1638)
* chore: Upgrade all Deps RN 72

* fix breaking skia changes

* fix devDeps

* Update yarn.lock

* fix metro config

* Update yarn.lock
2023-07-03 12:40:07 +02:00

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//
// PreviewSkiaView.mm
// VisionCamera
//
// Created by Marc Rousavy on 17.11.22.
// Copyright © 2022 mrousavy. All rights reserved.
//
#import "PreviewSkiaView.h"
#import <Foundation/Foundation.h>
#import "SkiaMetalCanvasProvider.h"
#include <include/core/SkCanvas.h>
#include <exception>
#include <string>
#if SHOW_FPS
#import <React/RCTFPSGraph.h>
#endif
@implementation PreviewSkiaView {
std::shared_ptr<SkiaMetalCanvasProvider> _canvasProvider;
}
- (void)drawFrame:(CMSampleBufferRef)buffer withCallback:(DrawCallback _Nonnull)callback {
if (_canvasProvider == nullptr) {
throw std::runtime_error("Cannot draw new Frame to Canvas when SkiaMetalCanvasProvider is null!");
}
_canvasProvider->renderFrameToCanvas(buffer, ^(SkCanvas* canvas) {
callback((void*)canvas);
});
}
- (void) willMoveToSuperview:(UIView *)newWindow {
if (newWindow == NULL) {
// Remove implementation view when the parent view is not set
if (_canvasProvider != nullptr) {
[_canvasProvider->getLayer() removeFromSuperlayer];
_canvasProvider = nullptr;
}
} else {
// Create implementation view when the parent view is set
if (_canvasProvider == nullptr) {
_canvasProvider = std::make_shared<SkiaMetalCanvasProvider>();
[self.layer addSublayer: _canvasProvider->getLayer()];
_canvasProvider->start();
}
}
}
- (void) layoutSubviews {
if (_canvasProvider != nullptr) {
_canvasProvider->setSize(self.bounds.size.width, self.bounds.size.height);
}
}
@end