cc/resources/managed_tile_state.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/managed_tile_state.h"
   6
   7 #include <limits>
   8 #include <string>
   9
  10 #include "base/debug/trace_event_argument.h"
  11 #include "cc/base/math_util.h"
  12
  13 namespace cc {
  14
  15 ManagedTileState::ManagedTileState()
  16     : resolution(NON_IDEAL_RESOLUTION),
  17       priority_bin(TilePriority::EVENTUALLY),
  18       scheduled_priority(0) {
  19 }
  20
  21 ManagedTileState::DrawInfo::DrawInfo()
  22     : mode_(RESOURCE_MODE), solid_color_(SK_ColorWHITE) {
  23 }
  24
  25 ManagedTileState::DrawInfo::~DrawInfo() {
  26   DCHECK(!resource_);
  27 }
  28
  29 bool ManagedTileState::DrawInfo::IsReadyToDraw() const {
  30   switch (mode_) {
  31     case RESOURCE_MODE:
  32       return !!resource_;
  33     case SOLID_COLOR_MODE:
  34     case PICTURE_PILE_MODE:
  35       return true;
  36   }
  37   NOTREACHED();
  38   return false;
  39 }
  40
  41 ManagedTileState::~ManagedTileState() {}
  42
  43 void ManagedTileState::AsValueInto(base::debug::TracedValue* state) const {
  44   bool has_resource = (draw_info.resource_.get() != 0);
  45   bool has_active_task = (raster_task.get() != 0);
  46
  47   bool is_using_gpu_memory = has_resource || has_active_task;
  48
  49   state->SetBoolean("has_resource", has_resource);
  50   state->SetBoolean("is_using_gpu_memory", is_using_gpu_memory);
  51   state->SetString("resolution", TileResolutionToString(resolution));
  52   state->SetString("priority_bin", TilePriorityBinToString(priority_bin));
  53   state->SetBoolean("is_solid_color",
  54                     draw_info.mode_ == DrawInfo::SOLID_COLOR_MODE);
  55   state->SetBoolean("is_transparent",
  56                     draw_info.mode_ == DrawInfo::SOLID_COLOR_MODE &&
  57                         !SkColorGetA(draw_info.solid_color_));
  58   state->SetInteger("scheduled_priority", scheduled_priority);
  59 }
  60
  61 }  // namespace cc