| // 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 MailboxTextureHolder_h |
| #define MailboxTextureHolder_h |
| |
| #include "base/memory/weak_ptr.h" |
| #include "platform/PlatformExport.h" |
| #include "platform/WebTaskRunner.h" |
| #include "platform/graphics/GraphicsTypes.h" |
| #include "platform/graphics/TextureHolder.h" |
| #include "platform/graphics/WebGraphicsContext3DProviderWrapper.h" |
| #include "third_party/khronos/GLES2/gl2.h" |
| |
| namespace blink { |
| |
| class PLATFORM_EXPORT MailboxTextureHolder final : public TextureHolder { |
| public: |
| ~MailboxTextureHolder() override; |
| |
| bool IsSkiaTextureHolder() final { return false; } |
| bool IsMailboxTextureHolder() final { return true; } |
| IntSize Size() const final { return size_; } |
| bool CurrentFrameKnownToBeOpaque(Image::MetadataMode) final { return false; } |
| bool IsValid() const final; |
| |
| const gpu::Mailbox& GetMailbox() const final { return mailbox_; } |
| const gpu::SyncToken& GetSyncToken() const final { return sync_token_; } |
| void UpdateSyncToken(gpu::SyncToken sync_token) final { |
| sync_token_ = sync_token; |
| } |
| |
| void Sync(MailboxSyncMode) final; |
| // In WebGL's commit or transferToImageBitmap calls, it will call the |
| // DrawingBuffer::transferToStaticBitmapImage function, which produces the |
| // input parameters for this method. |
| MailboxTextureHolder(const gpu::Mailbox&, |
| const gpu::SyncToken&, |
| unsigned texture_id_to_delete_after_mailbox_consumed, |
| base::WeakPtr<WebGraphicsContext3DProviderWrapper>&&, |
| IntSize mailbox_size); |
| // This function turns a texture-backed SkImage into a mailbox and a |
| // syncToken. |
| MailboxTextureHolder(std::unique_ptr<TextureHolder>, GLenum filter); |
| |
| private: |
| void InitCommon(); |
| |
| gpu::Mailbox mailbox_; |
| gpu::SyncToken sync_token_; |
| unsigned texture_id_; |
| IntSize size_; |
| bool is_converted_from_skia_texture_; |
| scoped_refptr<WebTaskRunner> texture_thread_task_runner_; |
| PlatformThreadId thread_id_; |
| bool did_issue_ordering_barrier_ = false; |
| }; |
| |
| } // namespace blink |
| |
| #endif // MailboxTextureHolder_h |