43 lines
1.2 KiB
Objective-C
43 lines
1.2 KiB
Objective-C
//
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// SkImageHelpers.h
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// VisionCamera
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//
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// Created by Marc Rousavy on 23.11.22.
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// Copyright © 2022 mrousavy. All rights reserved.
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//
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#pragma once
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#import <Foundation/Foundation.h>
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#import <AVFoundation/AVFoundation.h>
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#import <MetalKit/MetalKit.h>
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#import <include/gpu/GrRecordingContext.h>
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#import "SkImage.h"
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#import "SkSize.h"
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#import "SkRect.h"
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class SkImageHelpers {
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public:
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SkImageHelpers() = delete;
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public:
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/**
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Convert a CMSampleBuffer to an SkImage. Format has to be RGB.
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*/
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static sk_sp<SkImage> convertCMSampleBufferToSkImage(GrRecordingContext* context, CMSampleBufferRef sampleBuffer);
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/**
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Convert a MTLTexture to an SkImage. Format has to be RGB.
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*/
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static sk_sp<SkImage> convertMTLTextureToSkImage(GrRecordingContext* context, id<MTLTexture> mtlTexture);
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/**
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Creates a Center Crop Transformation Rect so that the source rect fills (aspectRatio: cover) the destination rect.
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The return value should be passed as a sourceRect to a canvas->draw...Rect(..) function, destinationRect should stay the same.
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*/
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static SkRect createCenterCropRect(SkRect source, SkRect destination);
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private:
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static SkRect inscribe(SkSize size, SkRect rect);
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};
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