1 // Copyright 2014 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 CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_ 6 #define CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_ 7 8 #include "base/memory/ref_counted.h" 9 #include "content/browser/compositor/image_transport_factory.h" 10 #include "content/common/content_export.h" 11 #include "gpu/command_buffer/common/mailbox_holder.h" 12 13 namespace content { 14 15 class GLHelper; 16 17 // This class holds a texture id and gpu::Mailbox, and deletes the texture 18 // id when the object itself is destroyed. Should only be created if a GLHelper 19 // exists on the ImageTransportFactory. 20 class CONTENT_EXPORT OwnedMailbox : public base::RefCounted<OwnedMailbox>, 21 public ImageTransportFactoryObserver { 22 public: 23 explicit OwnedMailbox(GLHelper* gl_helper); 24 25 const gpu::MailboxHolder& holder() const { return mailbox_holder_; } 26 const gpu::Mailbox& mailbox() const { return mailbox_holder_.mailbox; } 27 uint32 texture_id() const { return texture_id_; } 28 uint32 target() const { return mailbox_holder_.texture_target; } 29 uint32 sync_point() const { return mailbox_holder_.sync_point; } 30 void UpdateSyncPoint(uint32 sync_point); 31 void Destroy(); 32 33 protected: 34 virtual ~OwnedMailbox(); 35 36 // ImageTransportFactoryObserver implementation. 37 virtual void OnLostResources() OVERRIDE; 38 39 private: 40 friend class base::RefCounted<OwnedMailbox>; 41 42 uint32 texture_id_; 43 gpu::MailboxHolder mailbox_holder_; 44 GLHelper* gl_helper_; 45 }; 46 47 } // namespace content 48 49 #endif // CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_ 50
