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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef SkiaTextureHolder_h |
| 6 #define SkiaTextureHolder_h |
| 7 |
| 8 #include "platform/PlatformExport.h" |
| 9 #include "platform/graphics/TextureHolder.h" |
| 10 |
| 11 namespace blink { |
| 12 |
| 13 class PLATFORM_EXPORT SkiaTextureHolder final : public TextureHolder { |
| 14 public: |
| 15 ~SkiaTextureHolder() override; |
| 16 |
| 17 bool isSkiaTextureHolder() final { return true; } |
| 18 bool isMailboxTextureHolder() final { return false; } |
| 19 unsigned sharedContextId() final; |
| 20 IntSize size() const final { |
| 21 return IntSize(m_image->width(), m_image->height()); |
| 22 } |
| 23 bool currentFrameKnownToBeOpaque(Image::MetadataMode) final { |
| 24 return m_image->isOpaque(); |
| 25 } |
| 26 |
| 27 sk_sp<SkImage> skImage() final { return m_image; } |
| 28 void setSharedContextId(unsigned contextId) final { |
| 29 m_sharedContextId = contextId; |
| 30 } |
| 31 |
| 32 // When creating a AcceleratedStaticBitmap from a texture-backed SkImage, this |
| 33 // function will be called to create a TextureHolder object. |
| 34 SkiaTextureHolder(sk_sp<SkImage>); |
| 35 // This function consumes the mailbox in the input parameter and turn it into |
| 36 // a texture-backed SkImage. |
| 37 SkiaTextureHolder(std::unique_ptr<TextureHolder>); |
| 38 |
| 39 private: |
| 40 void releaseImageThreadSafe(); |
| 41 |
| 42 // The m_image should always be texture-backed |
| 43 sk_sp<SkImage> m_image; |
| 44 // Id of the shared context where m_image was created |
| 45 unsigned m_sharedContextId = 0; |
| 46 }; |
| 47 |
| 48 } // namespace blink |
| 49 |
| 50 #endif // SkiaTextureHolder_h |
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