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// Copyright (c) 2012 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 CHROME_BROWSER_GPU_FEATURE_CHECKER_H_
#define CHROME_BROWSER_GPU_FEATURE_CHECKER_H_
#include "base/callback.h"
#include "content/public/browser/gpu_data_manager_observer.h"
#include "content/public/common/gpu_feature_type.h"
#include "base/memory/ref_counted.h"
namespace content {
class GpuDataManager;
} // namespace content
class GPUFeatureChecker : public base::RefCountedThreadSafe<GPUFeatureChecker>,
public content::GpuDataManagerObserver {
public:
typedef base::Callback<void(bool feature_available)> FeatureAvailableCallback;
GPUFeatureChecker(content::GpuFeatureType feature,
FeatureAvailableCallback callback);
// Check to see if |feature_| is available on the current GPU. |callback_|
// will be called to indicate the availability of the feature. Must be called
// from the the UI thread.
void CheckGPUFeatureAvailability();
// content::GpuDataManagerObserver
virtual void OnGpuInfoUpdate() OVERRIDE;
virtual void OnVideoMemoryUsageStatsUpdate(
const content::GPUVideoMemoryUsageStats& video_memory_usage_stats)
OVERRIDE {}
private:
friend class base::RefCountedThreadSafe<GPUFeatureChecker>;
virtual ~GPUFeatureChecker();
content::GpuFeatureType feature_;
FeatureAvailableCallback callback_;
DISALLOW_COPY_AND_ASSIGN(GPUFeatureChecker);
};
#endif // CHROME_BROWSER_GPU_FEATURE_CHECKER_H_
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