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// Copyright 2014 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 CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_
#define CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_
#include <stdint.h>
#include "base/memory/ref_counted.h"
#include "content/browser/compositor/image_transport_factory.h"
#include "content/common/content_export.h"
#include "gpu/command_buffer/common/mailbox_holder.h"
namespace content {
class GLHelper;
// This class holds a texture id and gpu::Mailbox, and deletes the texture
// id when the object itself is destroyed. Should only be created if a GLHelper
// exists on the ImageTransportFactory.
class CONTENT_EXPORT OwnedMailbox : public base::RefCounted<OwnedMailbox>,
public ImageTransportFactoryObserver {
public:
explicit OwnedMailbox(GLHelper* gl_helper);
const gpu::MailboxHolder& holder() const { return mailbox_holder_; }
const gpu::Mailbox& mailbox() const { return mailbox_holder_.mailbox; }
const gpu::SyncToken& sync_token() const {
return mailbox_holder_.sync_token;
}
uint32_t texture_id() const { return texture_id_; }
uint32_t target() const { return mailbox_holder_.texture_target; }
void UpdateSyncToken(const gpu::SyncToken& sync_token);
void Destroy();
protected:
~OwnedMailbox() override;
// ImageTransportFactoryObserver implementation.
void OnLostResources() override;
private:
friend class base::RefCounted<OwnedMailbox>;
uint32_t texture_id_;
gpu::MailboxHolder mailbox_holder_;
GLHelper* gl_helper_;
};
} // namespace content
#endif // CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_
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