| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef AcceleratedStaticBitmapImage_h |
| #define AcceleratedStaticBitmapImage_h |
| |
| #include "base/threading/thread_checker.h" |
| #include "platform/graphics/StaticBitmapImage.h" |
| #include "platform/graphics/TextureHolder.h" |
| #include "wtf/WeakPtr.h" |
| |
| #include <memory> |
| |
| class GrContext; |
| |
| namespace blink { |
| class WebGraphicsContext3DProviderWrapper; |
| class TextureHolder; |
| |
| class PLATFORM_EXPORT AcceleratedStaticBitmapImage final |
| : public StaticBitmapImage { |
| public: |
| ~AcceleratedStaticBitmapImage() override; |
| // SkImage with a texture backing that is assumed to be from the shared |
| // context of the current thread. |
| static PassRefPtr<AcceleratedStaticBitmapImage> createFromSharedContextImage( |
| sk_sp<SkImage>); |
| // Can specify the GrContext that created the texture backing. Ideally all |
| // callers would use this option. The |mailbox| is a name for the texture |
| // backing, allowing other contexts to use the same backing. |
| static PassRefPtr<AcceleratedStaticBitmapImage> createFromWebGLContextImage( |
| const gpu::Mailbox&, |
| const gpu::SyncToken&, |
| unsigned textureId, |
| WeakPtr<WebGraphicsContext3DProviderWrapper>, |
| IntSize mailboxSize); |
| |
| bool currentFrameKnownToBeOpaque(MetadataMode = UseCurrentMetadata) override; |
| IntSize size() const override; |
| sk_sp<SkImage> imageForCurrentFrame() override; |
| bool isTextureBacked() final { return true; } |
| |
| void draw(SkCanvas*, |
| const SkPaint&, |
| const FloatRect& dstRect, |
| const FloatRect& srcRect, |
| RespectImageOrientationEnum, |
| ImageClampingMode) override; |
| |
| void copyToTexture(WebGraphicsContext3DProvider*, |
| GLuint destTextureId, |
| GLenum destInternalFormat, |
| GLenum destType, |
| bool flipY) override; |
| |
| bool hasMailbox() final { return m_textureHolder->isMailboxTextureHolder(); } |
| // To be called on sender thread before performing a transfer |
| void transfer() final; |
| |
| void ensureMailbox() final; |
| gpu::Mailbox mailbox() final { return m_textureHolder->mailbox(); } |
| gpu::SyncToken syncToken() final { return m_textureHolder->syncToken(); } |
| void updateSyncToken(gpu::SyncToken) final; |
| |
| private: |
| AcceleratedStaticBitmapImage(sk_sp<SkImage>); |
| AcceleratedStaticBitmapImage(const gpu::Mailbox&, |
| const gpu::SyncToken&, |
| unsigned textureId, |
| WeakPtr<WebGraphicsContext3DProviderWrapper>, |
| IntSize mailboxSize); |
| |
| void createImageFromMailboxIfNeeded(); |
| void checkThread(); |
| void waitSyncTokenIfNeeded(); |
| bool isValid(); |
| |
| std::unique_ptr<TextureHolder> m_textureHolder; |
| |
| base::ThreadChecker m_threadChecker; |
| bool m_detachThreadAtNextCheck = false; |
| }; |
| |
| } // namespace blink |
| |
| #endif |