4ad4804e51
* chore: Upgrade all Deps RN 72 * fix breaking skia changes * fix devDeps * Update yarn.lock * fix metro config * Update yarn.lock
58 lines
1.5 KiB
Objective-C
58 lines
1.5 KiB
Objective-C
#pragma once
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#ifndef __cplusplus
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#error This header has to be compiled with C++!
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#endif
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#import <MetalKit/MetalKit.h>
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#import <QuartzCore/CAMetalLayer.h>
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#import <AVFoundation/AVFoundation.h>
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#include <include/gpu/GrDirectContext.h>
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#include <include/core/SkCanvas.h>
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#include <functional>
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#include <mutex>
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#include <memory>
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#include <atomic>
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#import "VisionDisplayLink.h"
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#import "SkiaMetalRenderContext.h"
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class SkiaMetalCanvasProvider: public std::enable_shared_from_this<SkiaMetalCanvasProvider> {
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public:
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SkiaMetalCanvasProvider();
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~SkiaMetalCanvasProvider();
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// Render a Camera Frame to the off-screen canvas
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void renderFrameToCanvas(CMSampleBufferRef sampleBuffer, const std::function<void(SkCanvas*)>& drawCallback);
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// Start updating the DisplayLink (runLoop @ screen refresh rate) and draw Frames to the Layer
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void start();
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// Update the size of the View (Layer)
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void setSize(int width, int height);
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CALayer* getLayer();
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private:
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bool _isValid = false;
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float _width = -1;
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float _height = -1;
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// For rendering Camera Frame -> off-screen MTLTexture
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OffscreenRenderContext _offscreenContext;
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// For rendering off-screen MTLTexture -> on-screen CAMetalLayer
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LayerRenderContext _layerContext;
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// For synchronization between the two Threads/Contexts
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std::mutex _textureMutex;
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std::atomic<bool> _hasNewFrame = false;
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private:
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void render();
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id<MTLTexture> getTexture(int width, int height);
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float getPixelDensity();
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};
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