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// 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_RESOURCES_UI_RESOURCE_CLIENT_H_
#define CC_RESOURCES_UI_RESOURCE_CLIENT_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "cc/base/cc_export.h"
namespace cc {
class UIResourceBitmap;
typedef int UIResourceId;
class CC_EXPORT UIResourceClient {
public:
// GetBitmap() will be called once soon after resource creation and then will
// be called afterwards whenever the GL context is lost, on the same thread
// that LayerTreeHost::CreateUIResource was called on. It is only safe to
// delete a UIResourceClient object after DeleteUIResource has been called for
// all IDs associated with it. A valid bitmap always must be returned but it
// doesn't need to be the same size or format as the original.
virtual UIResourceBitmap GetBitmap(UIResourceId uid,
bool resource_lost) = 0;
virtual ~UIResourceClient() {}
};
} // namespace cc
#endif // CC_RESOURCES_UI_RESOURCE_CLIENT_H_
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