diff options
author | 2016-03-17 13:50:17 -0700 | |
---|---|---|
committer | 2016-03-17 13:50:18 -0700 | |
commit | fc0b6d1053bb56698f2844bd5ca30bced7bb389d (patch) | |
tree | 017a37474cd1a510a0603aab76fea25c72a7a0ca /src/ports/SkImageGeneratorWIC.h | |
parent | 3bcef213d19b457baf2e6d1f42046ae9afd4e97f (diff) |
Add SkImageGeneratorWIC
This will be a replacement for SkImageDecoder_WIC.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1785613010
CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac-Clang-x86_64-Release-CMake-Trybot
Review URL: https://codereview.chromium.org/1785613010
Diffstat (limited to 'src/ports/SkImageGeneratorWIC.h')
-rw-r--r-- | src/ports/SkImageGeneratorWIC.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/ports/SkImageGeneratorWIC.h b/src/ports/SkImageGeneratorWIC.h new file mode 100644 index 0000000000..1366333350 --- /dev/null +++ b/src/ports/SkImageGeneratorWIC.h @@ -0,0 +1,63 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "SkTypes.h" + +#if defined(SK_BUILD_FOR_WIN) + +#include "SkData.h" +#include "SkImageGenerator.h" +#include "SkTemplates.h" +#include "SkTScopedComPtr.h" + +#include <wincodec.h> + +/* + * Any Windows program that uses COM must initialize the COM library by calling + * the CoInitializeEx function. In addition, each thread that uses a COM + * interface must make a separate call to this function. + * + * For every successful call to CoInitializeEx, the thread must call + * CoUninitialize before it exits. + * + * SkImageGeneratorWIC requires the COM library and leaves it to the client to + * initialize COM for their application. + * + * For more information on initializing COM, please see: + * https://msdn.microsoft.com/en-us/library/windows/desktop/ff485844.aspx + */ +class SkImageGeneratorWIC : public SkImageGenerator { +public: + /* + * Refs the data if an image generator can be returned. Otherwise does + * not affect the data. + */ + static SkImageGenerator* NewFromEncodedWIC(SkData* data); + +protected: + SkData* onRefEncodedData(SK_REFENCODEDDATA_CTXPARAM) override; + + bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, SkPMColor ctable[], + int* ctableCount) override; + +private: + /* + * Takes ownership of the imagingFactory + * Takes ownership of the imageSource + * Refs the data + */ + SkImageGeneratorWIC(const SkImageInfo& info, IWICImagingFactory* imagingFactory, + IWICBitmapSource* imageSource, SkData* data); + + SkTScopedComPtr<IWICImagingFactory> fImagingFactory; + SkTScopedComPtr<IWICBitmapSource> fImageSource; + SkAutoTUnref<SkData> fData; + + typedef SkImageGenerator INHERITED; +}; + +#endif // SK_BUILD_FOR_WIN |