cc/layers/picture_image_layer_impl_unittest.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/layers/picture_image_layer_impl.h"
   6
   7 #include "base/thread_task_runner_handle.h"
   8 #include "cc/layers/append_quads_data.h"
   9 #include "cc/quads/draw_quad.h"
  10 #include "cc/test/fake_impl_proxy.h"
  11 #include "cc/test/fake_layer_tree_host_impl.h"
  12 #include "cc/test/fake_output_surface.h"
  13 #include "cc/test/fake_picture_pile_impl.h"
  14 #include "cc/test/test_shared_bitmap_manager.h"
  15 #include "cc/test/test_task_graph_runner.h"
  16 #include "cc/tiles/tile_priority.h"
  17 #include "cc/trees/layer_tree_impl.h"
  18 #include "testing/gtest/include/gtest/gtest.h"
  19
  20 namespace cc {
  21 namespace {
  22
  23 class TestablePictureImageLayerImpl : public PictureImageLayerImpl {
  24  public:
  25   TestablePictureImageLayerImpl(LayerTreeImpl* tree_impl, int id)
  26       : PictureImageLayerImpl(tree_impl, id, false) {}
  27   using PictureLayerImpl::UpdateIdealScales;
  28   using PictureLayerImpl::MaximumTilingContentsScale;
  29
  30   PictureLayerTilingSet* tilings() { return tilings_.get(); }
  31
  32   friend class PictureImageLayerImplTest;
  33 };
  34
  35 class PictureLayerImplImageTestSettings : public LayerTreeSettings {
  36  public:
  37   PictureLayerImplImageTestSettings() {
  38     layer_transforms_should_scale_layer_contents = true;
  39   }
  40 };
  41
  42 class PictureImageLayerImplTest : public testing::Test {
  43  public:
  44   PictureImageLayerImplTest()
  45       : proxy_(base::ThreadTaskRunnerHandle::Get()),
  46         host_impl_(PictureLayerImplImageTestSettings(),
  47                    &proxy_,
  48                    &shared_bitmap_manager_,
  49                    &task_graph_runner_) {
  50     host_impl_.CreatePendingTree();
  51     host_impl_.InitializeRenderer(FakeOutputSurface::Create3d());
  52   }
  53
  54   scoped_ptr<TestablePictureImageLayerImpl> CreateLayer(int id,
  55                                                         WhichTree which_tree) {
  56     LayerTreeImpl* tree = nullptr;
  57     switch (which_tree) {
  58       case ACTIVE_TREE:
  59         tree = host_impl_.active_tree();
  60         break;
  61       case PENDING_TREE:
  62         tree = host_impl_.pending_tree();
  63         break;
  64     }
  65     TestablePictureImageLayerImpl* layer =
  66         new TestablePictureImageLayerImpl(tree, id);
  67     layer->raster_source_ = FakePicturePileImpl::CreateInfiniteFilledPile();
  68     layer->SetBounds(layer->raster_source_->GetSize());
  69     return make_scoped_ptr(layer);
  70   }
  71
  72   void SetupDrawPropertiesAndUpdateTiles(TestablePictureImageLayerImpl* layer,
  73                                          float ideal_contents_scale,
  74                                          float device_scale_factor,
  75                                          float page_scale_factor,
  76                                          float maximum_animation_contents_scale,
  77                                          bool animating_transform_to_screen,
  78                                          gfx::Rect viewport_rect) {
  79     gfx::Transform scale_transform;
  80     scale_transform.Scale(ideal_contents_scale, ideal_contents_scale);
  81     layer->draw_properties().target_space_transform = scale_transform;
  82     DCHECK_EQ(layer->GetIdealContentsScale(), ideal_contents_scale);
  83     layer->draw_properties().maximum_animation_contents_scale =
  84         maximum_animation_contents_scale;
  85     layer->draw_properties().screen_space_transform_is_animating =
  86         animating_transform_to_screen;
  87     layer->draw_properties().visible_layer_rect = viewport_rect;
  88     bool resourceless_software_draw = false;
  89     layer->UpdateTiles(resourceless_software_draw);
  90   }
  91
  92  protected:
  93   FakeImplProxy proxy_;
  94   TestSharedBitmapManager shared_bitmap_manager_;
  95   TestTaskGraphRunner task_graph_runner_;
  96   FakeLayerTreeHostImpl host_impl_;
  97 };
  98
  99 TEST_F(PictureImageLayerImplTest, CalculateContentsScale) {
 100   scoped_ptr<TestablePictureImageLayerImpl> layer(CreateLayer(1, PENDING_TREE));
 101   layer->SetDrawsContent(true);
 102
 103   gfx::Rect viewport(100, 200);
 104   SetupDrawPropertiesAndUpdateTiles(
 105       layer.get(), 2.f, 3.f, 4.f, 1.f, false, viewport);
 106   EXPECT_FLOAT_EQ(1.f, layer->MaximumTilingContentsScale());
 107 }
 108
 109 TEST_F(PictureImageLayerImplTest, IgnoreIdealContentScale) {
 110   scoped_ptr<TestablePictureImageLayerImpl> pending_layer(
 111       CreateLayer(1, PENDING_TREE));
 112   pending_layer->SetDrawsContent(true);
 113
 114   gfx::Rect viewport(100, 200);
 115
 116   // Set PictureLayerImpl::ideal_contents_scale_ to 2.f which is not equal
 117   // to the content scale used by PictureImageLayerImpl.
 118   const float suggested_ideal_contents_scale = 2.f;
 119   const float device_scale_factor = 3.f;
 120   const float page_scale_factor = 4.f;
 121   const float maximum_animation_contents_scale = 1.f;
 122   const bool animating_transform_to_screen = false;
 123   SetupDrawPropertiesAndUpdateTiles(pending_layer.get(),
 124                                     suggested_ideal_contents_scale,
 125                                     device_scale_factor,
 126                                     page_scale_factor,
 127                                     maximum_animation_contents_scale,
 128                                     animating_transform_to_screen,
 129                                     viewport);
 130   EXPECT_EQ(1.f, pending_layer->tilings()->tiling_at(0)->contents_scale());
 131
 132   // Push to active layer.
 133   host_impl_.pending_tree()->SetRootLayer(pending_layer.Pass());
 134   host_impl_.ActivateSyncTree();
 135
 136   TestablePictureImageLayerImpl* active_layer =
 137       static_cast<TestablePictureImageLayerImpl*>(
 138           host_impl_.active_tree()->root_layer());
 139   SetupDrawPropertiesAndUpdateTiles(active_layer,
 140                                     suggested_ideal_contents_scale,
 141                                     device_scale_factor,
 142                                     page_scale_factor,
 143                                     maximum_animation_contents_scale,
 144                                     animating_transform_to_screen,
 145                                     viewport);
 146   EXPECT_EQ(1.f, active_layer->tilings()->tiling_at(0)->contents_scale());
 147
 148   // Create resources for the tiles.
 149   host_impl_.tile_manager()->InitializeTilesWithResourcesForTesting(
 150       active_layer->tilings()->tiling_at(0)->AllTilesForTesting());
 151
 152   // Draw.
 153   scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 154   AppendQuadsData data;
 155   active_layer->WillDraw(DRAW_MODE_SOFTWARE, nullptr);
 156   active_layer->AppendQuads(render_pass.get(), &data);
 157   active_layer->DidDraw(nullptr);
 158
 159   EXPECT_EQ(DrawQuad::TILED_CONTENT, render_pass->quad_list.front()->material);
 160
 161   // Tiles are ready at correct scale, so should not set had_incomplete_tile.
 162   EXPECT_EQ(0, data.num_incomplete_tiles);
 163 }
 164
 165 }  // namespace
 166 }  // namespace cc