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 CC_DEBUG_INVALIDATION_BENCHMARK_H_ 6 #define CC_DEBUG_INVALIDATION_BENCHMARK_H_ 7 8 #include <string> 9 10 #include "cc/debug/micro_benchmark_controller.h" 11 12 namespace cc { 13 14 class LayerTreeHost; 15 class Layer; 16 // NOTE: this benchmark will not measure or return any results, it will simply 17 // invalidate a certain area of each layer every frame. It is intended to be 18 // used in combination with a telemetry benchmark that does the actual 19 // measurement. 20 class CC_EXPORT InvalidationBenchmark : public MicroBenchmark { 21 public: 22 explicit InvalidationBenchmark(scoped_ptr<base::Value> value, 23 const MicroBenchmark::DoneCallback& callback); 24 virtual ~InvalidationBenchmark(); 25 26 // Implements MicroBenchmark interface. 27 virtual void DidUpdateLayers(LayerTreeHost* host) OVERRIDE; 28 virtual void RunOnLayer(PictureLayer* layer) OVERRIDE; 29 virtual bool ProcessMessage(scoped_ptr<base::Value> value) OVERRIDE; 30 31 private: 32 enum Mode { FIXED_SIZE, LAYER, VIEWPORT, RANDOM }; 33 34 void Run(Layer* layer); 35 float LCGRandom(); 36 37 Mode mode_; 38 int width_; 39 int height_; 40 uint32 seed_; 41 }; 42 43 } // namespace cc 44 45 #endif // CC_DEBUG_INVALIDATION_BENCHMARK_H_ 46
