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 std::string ManagedTileBinToString(ManagedTileBin bin) {
  16   switch (bin) {
  17     case NOW_AND_READY_TO_DRAW_BIN:
  18       return "NOW_AND_READY_TO_DRAW_BIN";
  19     case NOW_BIN:
  20       return "NOW_BIN";
  21     case SOON_BIN:
  22       return "SOON_BIN";
  23     case EVENTUALLY_AND_ACTIVE_BIN:
  24       return "EVENTUALLY_AND_ACTIVE_BIN";
  25     case EVENTUALLY_BIN:
  26       return "EVENTUALLY_BIN";
  27     case AT_LAST_AND_ACTIVE_BIN:
  28       return "AT_LAST_AND_ACTIVE_BIN";
  29     case AT_LAST_BIN:
  30       return "AT_LAST_BIN";
  31     case NEVER_BIN:
  32       return "NEVER_BIN";
  33     case NUM_BINS:
  34       NOTREACHED();
  35       return "Invalid Bin (NUM_BINS)";
  36   }
  37   return "Invalid Bin (UNKNOWN)";
  38 }
  39
  40 ManagedTileState::ManagedTileState()
  41     : bin(NEVER_BIN),
  42       resolution(NON_IDEAL_RESOLUTION),
  43       required_for_activation(false),
  44       priority_bin(TilePriority::EVENTUALLY),
  45       distance_to_visible(std::numeric_limits<float>::infinity()),
  46       visible_and_ready_to_draw(false),
  47       scheduled_priority(0) {
  48 }
  49
  50 ManagedTileState::DrawInfo::DrawInfo()
  51     : mode_(RESOURCE_MODE), solid_color_(SK_ColorWHITE) {
  52 }
  53
  54 ManagedTileState::DrawInfo::~DrawInfo() {
  55   DCHECK(!resource_);
  56 }
  57
  58 bool ManagedTileState::DrawInfo::IsReadyToDraw() const {
  59   switch (mode_) {
  60     case RESOURCE_MODE:
  61       return !!resource_;
  62     case SOLID_COLOR_MODE:
  63     case PICTURE_PILE_MODE:
  64       return true;
  65   }
  66   NOTREACHED();
  67   return false;
  68 }
  69
  70 ManagedTileState::~ManagedTileState() {}
  71
  72 void ManagedTileState::AsValueInto(base::debug::TracedValue* state) const {
  73   bool has_resource = (draw_info.resource_.get() != 0);
  74   bool has_active_task = (raster_task.get() != 0);
  75
  76   bool is_using_gpu_memory = has_resource || has_active_task;
  77
  78   state->SetBoolean("has_resource", has_resource);
  79   state->SetBoolean("is_using_gpu_memory", is_using_gpu_memory);
  80   state->SetString("bin", ManagedTileBinToString(bin));
  81   state->SetString("resolution", TileResolutionToString(resolution));
  82   state->SetString("priority_bin", TilePriorityBinToString(priority_bin));
  83   state->SetDouble("distance_to_visible",
  84                    MathUtil::AsFloatSafely(distance_to_visible));
  85   state->SetBoolean("required_for_activation", required_for_activation);
  86   state->SetBoolean("is_solid_color",
  87                     draw_info.mode_ == DrawInfo::SOLID_COLOR_MODE);
  88   state->SetBoolean("is_transparent",
  89                     draw_info.mode_ == DrawInfo::SOLID_COLOR_MODE &&
  90                         !SkColorGetA(draw_info.solid_color_));
  91   state->SetInteger("scheduled_priority", scheduled_priority);
  92 }
  93
  94 }  // namespace cc