| // Copyright 2013 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 CC_OUTPUT_TEXTURE_MAILBOX_DELETER_H_ |
| #define CC_OUTPUT_TEXTURE_MAILBOX_DELETER_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/memory/weak_ptr.h" |
| #include "cc/base/cc_export.h" |
| |
| namespace base { |
| class SingleThreadTaskRunner; |
| } |
| |
| namespace gpu { |
| struct SyncToken; |
| } |
| |
| namespace cc { |
| class ContextProvider; |
| class SingleReleaseCallback; |
| |
| class CC_EXPORT TextureMailboxDeleter { |
| public: |
| // task_runner corresponds with the thread the delete task should be posted |
| // to. If null, the delete will happen on the calling thread. |
| explicit TextureMailboxDeleter( |
| scoped_refptr<base::SingleThreadTaskRunner> task_runner); |
| ~TextureMailboxDeleter(); |
| |
| // Returns a Callback that can be used as the ReleaseCallback for a |
| // TextureMailbox attached to the |texture_id|. The ReleaseCallback can |
| // be passed to other threads and will destroy the texture, once it is |
| // run, on the impl thread. If the TextureMailboxDeleter is destroyed |
| // due to the compositor shutting down, then the ReleaseCallback will |
| // become a no-op and the texture will be deleted immediately on the |
| // impl thread, along with dropping the reference to the ContextProvider. |
| std::unique_ptr<SingleReleaseCallback> GetReleaseCallback( |
| scoped_refptr<ContextProvider> context_provider, |
| unsigned texture_id); |
| |
| private: |
| // Runs the |impl_callback| to delete the texture and removes the callback |
| // from the |impl_callbacks_| list. |
| void RunDeleteTextureOnImplThread(SingleReleaseCallback* impl_callback, |
| const gpu::SyncToken& sync_token, |
| bool is_lost); |
| |
| scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner_; |
| std::vector<std::unique_ptr<SingleReleaseCallback>> impl_callbacks_; |
| base::WeakPtrFactory<TextureMailboxDeleter> weak_ptr_factory_; |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_OUTPUT_TEXTURE_MAILBOX_DELETER_H_ |