cc/resources/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/resources/tile_draw_info.h"
   6
   7 #include "cc/base/math_util.h"
   8
   9 namespace cc {
  10
  11 TileDrawInfo::TileDrawInfo()
  12     : mode_(RESOURCE_MODE), solid_color_(SK_ColorWHITE) {
  13 }
  14
  15 TileDrawInfo::~TileDrawInfo() {
  16   DCHECK(!resource_);
  17 }
  18
  19 bool TileDrawInfo::IsReadyToDraw() const {
  20   switch (mode_) {
  21     case RESOURCE_MODE:
  22       return !!resource_;
  23     case SOLID_COLOR_MODE:
  24     case OOM_MODE:
  25       return true;
  26   }
  27   NOTREACHED();
  28   return false;
  29 }
  30
  31 void TileDrawInfo::AsValueInto(base::trace_event::TracedValue* state) const {
  32   state->SetBoolean("is_solid_color", mode_ == SOLID_COLOR_MODE);
  33   state->SetBoolean("is_transparent",
  34                     mode_ == SOLID_COLOR_MODE && !SkColorGetA(solid_color_));
  35 }
  36
  37 }  // namespace cc