cc/tiles/tile_draw_info.cc

   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 #include "cc/tiles/tile_draw_info.h"
   6
   7 #include "base/metrics/histogram.h"
   8 #include "cc/base/math_util.h"
   9
  10 namespace cc {
  11
  12 TileDrawInfo::TileDrawInfo()
  13     : mode_(RESOURCE_MODE),
  14       solid_color_(SK_ColorWHITE),
  15       contents_swizzled_(false),
  16       was_ever_ready_to_draw_(false),
  17       was_ever_used_to_draw_(false) {
  18 }
  19
  20 TileDrawInfo::~TileDrawInfo() {
  21   DCHECK(!resource_);
  22   if (was_ever_ready_to_draw_) {
  23     UMA_HISTOGRAM_BOOLEAN("Renderer4.ReadyToDrawTileDrawStatus",
  24                           was_ever_used_to_draw_);
  25   }
  26 }
  27
  28 void TileDrawInfo::AsValueInto(base::trace_event::TracedValue* state) const {
  29   state->SetBoolean("is_solid_color", mode_ == SOLID_COLOR_MODE);
  30   state->SetBoolean("is_transparent",
  31                     mode_ == SOLID_COLOR_MODE && !SkColorGetA(solid_color_));
  32 }
  33
  34 }  // namespace cc