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