cc: Refactored Tile::GetResourceId

cc/managed_tile_state.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "cc/managed_tile_state.h"
+#include "cc/math_util.h"
+
+namespace cc {
+
+ManagedTileState::ManagedTileState()
+    : can_use_gpu_memory(false),
+      need_to_gather_pixel_refs(true),
+      gpu_memmgr_stats_bin(NEVER_BIN),
+      raster_state(IDLE_STATE),
+      resolution(NON_IDEAL_RESOLUTION),
+      time_to_needed_in_seconds(std::numeric_limits<float>::infinity()),
+      distance_to_visible_in_pixels(std::numeric_limits<float>::infinity()),
+      picture_pile_analyzed(false) {
+  for (int i = 0; i < NUM_TREES; ++i) {
+    tree_bin[i] = NEVER_BIN;
+    bin[i] = NEVER_BIN;
+  }
+}
+
+ManagedTileState::DrawingInfo::DrawingInfo()
+    : mode_(TEXTURE_MODE),
+      resource_is_being_initialized_(false),
+      can_be_freed_(true),
+      contents_swizzled_(false) {
+}
+
+ManagedTileState::DrawingInfo::~DrawingInfo() {
+}
+
+bool ManagedTileState::DrawingInfo::IsReadyToDraw() const {
+  switch (mode_) {
+    case TEXTURE_MODE:
+      return resource_ &&
+             !resource_is_being_initialized_ &&
+             resource_->id();
+    case SOLID_COLOR_MODE:
+    case TRANSPARENT_MODE:
+    case PICTURE_PILE_MODE:
+      return true;
+    default:
+      NOTREACHED();
+      return false;
+  }
+}
+
+ManagedTileState::~ManagedTileState() {
+  DCHECK(!drawing_info.resource_);
+  DCHECK(!drawing_info.resource_is_being_initialized_);
+}
+
+scoped_ptr<base::Value> ManagedTileState::AsValue() const {
+  scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
+  state->SetBoolean("can_use_gpu_memory", can_use_gpu_memory);
+  state->SetBoolean("can_be_freed", drawing_info.can_be_freed_);
+  state->SetBoolean("has_resource", drawing_info.resource_.get() != 0);
+  state->SetBoolean("resource_is_being_initialized",
+      drawing_info.resource_is_being_initialized_);
+  state->Set("raster_state", TileRasterStateAsValue(raster_state).release());
+  state->Set("bin.0", TileManagerBinAsValue(bin[ACTIVE_TREE]).release());
+  state->Set("bin.1", TileManagerBinAsValue(bin[PENDING_TREE]).release());
+  state->Set("gpu_memmgr_stats_bin",
+      TileManagerBinAsValue(bin[ACTIVE_TREE]).release());
+  state->Set("resolution", TileResolutionAsValue(resolution).release());
+  state->Set("time_to_needed_in_seconds",
+      MathUtil::asValueSafely(time_to_needed_in_seconds).release());
+  state->Set("distance_to_visible_in_pixels",
+      MathUtil::asValueSafely(distance_to_visible_in_pixels).release());
+  state->SetBoolean("is_picture_pile_analyzed", picture_pile_analyzed);
+  state->SetBoolean("is_cheap_to_raster",
+      picture_pile_analysis.is_cheap_to_raster);
+  state->SetBoolean("is_transparent", picture_pile_analysis.is_transparent);
+  state->SetBoolean("is_solid_color", picture_pile_analysis.is_solid_color);
+  return state.PassAs<base::Value>();
+}
+
+}  // namespace cc
+