blob: 19760ea0a4c0d032b06180f8bb9886c769976ccc [file] [log] [blame]
// 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.
#include "base/memory/weak_ptr.h"
#include "cc/base/cc_export.h"
#include "cc/base/scoped_ptr_vector.h"
namespace base {
class SingleThreadTaskRunner;
namespace cc {
class ContextProvider;
class SingleReleaseCallback;
class CC_EXPORT TextureMailboxDeleter {
// 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(
const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
// 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.
scoped_ptr<SingleReleaseCallback> GetReleaseCallback(
const scoped_refptr<ContextProvider>& context_provider,
unsigned texture_id);
// Runs the |impl_callback| to delete the texture and removes the callback
// from the |impl_callbacks_| list.
void RunDeleteTextureOnImplThread(SingleReleaseCallback* impl_callback,
uint32 sync_point,
bool is_lost);
scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner_;
ScopedPtrVector<SingleReleaseCallback> impl_callbacks_;
base::WeakPtrFactory<TextureMailboxDeleter> weak_ptr_factory_;
} // namespace cc