1// Copyright 2012 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/test/begin_frame_args_test.h"
6#include "cc/test/fake_layer_tree_host_impl.h"
7#include "cc/test/test_shared_bitmap_manager.h"
8#include "cc/trees/layer_tree_impl.h"
9
10namespace cc {
11
12FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(Proxy* proxy,
13                                             SharedBitmapManager* manager)
14    : LayerTreeHostImpl(LayerTreeSettings(),
15                        &client_,
16                        proxy,
17                        &stats_instrumentation_,
18                        manager,
19                        0) {
20  // Explicitly clear all debug settings.
21  SetDebugState(LayerTreeDebugState());
22  SetViewportSize(gfx::Size(100, 100));
23
24  // Avoid using Now() as the frame time in unit tests.
25  base::TimeTicks time_ticks = base::TimeTicks::FromInternalValue(1);
26  SetCurrentBeginFrameArgs(CreateBeginFrameArgsForTesting(time_ticks));
27}
28
29FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(const LayerTreeSettings& settings,
30                                             Proxy* proxy,
31                                             SharedBitmapManager* manager)
32    : LayerTreeHostImpl(settings,
33                        &client_,
34                        proxy,
35                        &stats_instrumentation_,
36                        manager,
37                        0) {
38  // Explicitly clear all debug settings.
39  SetDebugState(LayerTreeDebugState());
40
41  // Avoid using Now() as the frame time in unit tests.
42  base::TimeTicks time_ticks = base::TimeTicks::FromInternalValue(1);
43  SetCurrentBeginFrameArgs(CreateBeginFrameArgsForTesting(time_ticks));
44}
45
46FakeLayerTreeHostImpl::~FakeLayerTreeHostImpl() {}
47
48void FakeLayerTreeHostImpl::CreatePendingTree() {
49  LayerTreeHostImpl::CreatePendingTree();
50  float arbitrary_large_page_scale = 100000.f;
51  pending_tree()->SetPageScaleFactorAndLimits(
52      1.f, 1.f / arbitrary_large_page_scale, arbitrary_large_page_scale);
53}
54
55BeginFrameArgs FakeLayerTreeHostImpl::CurrentBeginFrameArgs() const {
56  if (!current_begin_frame_args_.IsValid())
57    return LayerTreeHostImpl::CurrentBeginFrameArgs();
58  return current_begin_frame_args_;
59}
60
61void FakeLayerTreeHostImpl::SetCurrentBeginFrameArgs(
62    const BeginFrameArgs& args) {
63  current_begin_frame_args_ = args;
64}
65
66int FakeLayerTreeHostImpl::RecursiveUpdateNumChildren(LayerImpl* layer) {
67  int num_children_that_draw_content = 0;
68  for (size_t i = 0; i < layer->children().size(); ++i) {
69    num_children_that_draw_content +=
70        RecursiveUpdateNumChildren(layer->children()[i]);
71  }
72  if (layer->DrawsContent() && layer->HasDelegatedContent())
73    num_children_that_draw_content += 1000;
74  layer->SetNumDescendantsThatDrawContent(num_children_that_draw_content);
75  return num_children_that_draw_content + (layer->DrawsContent() ? 1 : 0);
76}
77
78void FakeLayerTreeHostImpl::UpdateNumChildrenAndDrawPropertiesForActiveTree() {
79  UpdateNumChildrenAndDrawProperties(active_tree());
80}
81
82void FakeLayerTreeHostImpl::UpdateNumChildrenAndDrawProperties(
83    LayerTreeImpl* layerTree) {
84  RecursiveUpdateNumChildren(layerTree->root_layer());
85  layerTree->UpdateDrawProperties();
86}
87
88}  // namespace cc
89