SkCodecImageGenerator.h 1.4 KB

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  1. /*
  2. * Copyright 2015 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. #ifndef SkCodecImageGenerator_DEFINED
  8. #define SkCodecImageGenerator_DEFINED
  9. #include "include/codec/SkCodec.h"
  10. #include "include/core/SkData.h"
  11. #include "include/core/SkImageGenerator.h"
  12. class SkCodecImageGenerator : public SkImageGenerator {
  13. public:
  14. /*
  15. * If this data represents an encoded image that we know how to decode,
  16. * return an SkCodecImageGenerator. Otherwise return nullptr.
  17. */
  18. static std::unique_ptr<SkImageGenerator> MakeFromEncodedCodec(sk_sp<SkData>);
  19. static std::unique_ptr<SkImageGenerator> MakeFromCodec(std::unique_ptr<SkCodec>);
  20. protected:
  21. sk_sp<SkData> onRefEncodedData() override;
  22. bool onGetPixels(
  23. const SkImageInfo& info, void* pixels, size_t rowBytes, const Options& opts) override;
  24. bool onQueryYUVA8(
  25. SkYUVASizeInfo*, SkYUVAIndex[SkYUVAIndex::kIndexCount], SkYUVColorSpace*) const override;
  26. bool onGetYUVA8Planes(const SkYUVASizeInfo&, const SkYUVAIndex[SkYUVAIndex::kIndexCount],
  27. void* planes[]) override;
  28. private:
  29. /*
  30. * Takes ownership of codec
  31. */
  32. SkCodecImageGenerator(std::unique_ptr<SkCodec>, sk_sp<SkData>);
  33. std::unique_ptr<SkCodec> fCodec;
  34. sk_sp<SkData> fData;
  35. typedef SkImageGenerator INHERITED;
  36. };
  37. #endif // SkCodecImageGenerator_DEFINED