cc/debug/devtools_instrumentation.h

   1 // Copyright 2013 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_DEVTOOLS_INSTRUMENTATION_H_
   6 #define CC_DEBUG_DEVTOOLS_INSTRUMENTATION_H_
   7
   8 #include "base/debug/trace_event.h"
   9
  10 namespace cc {
  11 namespace devtools_instrumentation {
  12
  13 namespace internal {
  14 const char kCategory[] = "cc,devtools";
  15 const char kLayerId[] = "layerId";
  16 }
  17
  18 const char kPaintLayer[] = "PaintLayer";
  19 const char kRasterTask[] = "RasterTask";
  20 const char kImageDecodeTask[] = "ImageDecodeTask";
  21 const char kPaintSetup[] = "PaintSetup";
  22
  23 class ScopedLayerTask {
  24  public:
  25   explicit ScopedLayerTask(const char* event_name, int layer_id)
  26     : event_name_(event_name) {
  27     TRACE_EVENT_BEGIN1(internal::kCategory, event_name_,
  28         internal::kLayerId, layer_id);
  29   }
  30   ~ScopedLayerTask() {
  31     TRACE_EVENT_END0(internal::kCategory, event_name_);
  32   }
  33  private:
  34   const char* event_name_;
  35 };
  36
  37 struct ScopedLayerObjectTracker
  38     : public base::debug::TraceScopedTrackableObject<int> {
  39   explicit ScopedLayerObjectTracker(int layer_id)
  40       : base::debug::TraceScopedTrackableObject<int>(
  41             internal::kCategory,
  42             internal::kLayerId,
  43             layer_id) {
  44   }
  45
  46   DISALLOW_COPY_AND_ASSIGN(ScopedLayerObjectTracker);
  47 };
  48
  49 }  // namespace devtools_instrumentation
  50 }  // namespace cc
  51
  52 #endif  // CC_DEBUG_DEVTOOLS_INSTRUMENTATION_H_