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      1 /*
      2  * Copyright 2016 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "SkTypes.h"
      9 #if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
     10 
     11 #include "SkCGUtils.h"
     12 #include "SkData.h"
     13 #include "SkImageGenerator.h"
     14 #include "SkTemplates.h"
     15 
     16 class SkImageGeneratorCG : public SkImageGenerator {
     17 public:
     18     /*
     19      * Refs the data if an image generator can be returned.  Otherwise does
     20      * not affect the data.
     21      */
     22     static SkImageGenerator* NewFromEncodedCG(SkData* data);
     23 
     24 protected:
     25     SkData* onRefEncodedData() override;
     26 
     27     bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, const Options&)
     28     override;
     29 
     30 private:
     31     /*
     32      * Takes ownership of the imageSrc
     33      * Refs the data
     34      */
     35     SkImageGeneratorCG(const SkImageInfo& info, const void* imageSrc, SkData* data);
     36 
     37     SkAutoTCallVProc<const void, CFRelease> fImageSrc;
     38     sk_sp<SkData>                           fData;
     39 
     40     typedef SkImageGenerator INHERITED;
     41 };
     42 
     43 #endif //defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
     44