64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
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/*
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* Copyright 2016 Google Inc.
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*
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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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*/
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#include "SkTypes.h"
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#if defined(SK_BUILD_FOR_WIN)
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#include "SkData.h"
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#include "SkImageGenerator.h"
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#include "SkTemplates.h"
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#include "SkTScopedComPtr.h"
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#include <wincodec.h>
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/*
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* Any Windows program that uses COM must initialize the COM library by calling
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* the CoInitializeEx function. In addition, each thread that uses a COM
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* interface must make a separate call to this function.
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*
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* For every successful call to CoInitializeEx, the thread must call
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* CoUninitialize before it exits.
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*
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* SkImageGeneratorWIC requires the COM library and leaves it to the client to
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* initialize COM for their application.
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*
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* For more information on initializing COM, please see:
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* https://msdn.microsoft.com/en-us/library/windows/desktop/ff485844.aspx
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*/
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class SkImageGeneratorWIC : public SkImageGenerator {
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public:
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/*
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* Refs the data if an image generator can be returned. Otherwise does
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* not affect the data.
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*/
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static SkImageGenerator* NewFromEncodedWIC(SkData* data);
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protected:
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SkData* onRefEncodedData(SK_REFENCODEDDATA_CTXPARAM) override;
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bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, SkPMColor ctable[],
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int* ctableCount) override;
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private:
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/*
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* Takes ownership of the imagingFactory
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* Takes ownership of the imageSource
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* Refs the data
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*/
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SkImageGeneratorWIC(const SkImageInfo& info, IWICImagingFactory* imagingFactory,
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IWICBitmapSource* imageSource, SkData* data);
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SkTScopedComPtr<IWICImagingFactory> fImagingFactory;
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SkTScopedComPtr<IWICBitmapSource> fImageSource;
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SkAutoTUnref<SkData> fData;
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typedef SkImageGenerator INHERITED;
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};
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#endif // SK_BUILD_FOR_WIN
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