cc/layers/picture_layer_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_layer.h"
   6
   7 #include "cc/layers/content_layer_client.h"
   8 #include "cc/layers/picture_layer_impl.h"
   9 #include "cc/resources/resource_update_queue.h"
  10 #include "cc/test/fake_layer_tree_host.h"
  11 #include "cc/test/fake_picture_layer_impl.h"
  12 #include "cc/test/fake_proxy.h"
  13 #include "cc/test/impl_side_painting_settings.h"
  14 #include "cc/trees/occlusion_tracker.h"
  15 #include "cc/trees/single_thread_proxy.h"
  16 #include "testing/gtest/include/gtest/gtest.h"
  17
  18 namespace cc {
  19 namespace {
  20
  21 class MockContentLayerClient : public ContentLayerClient {
  22  public:
  23   void PaintContents(
  24       SkCanvas* canvas,
  25       const gfx::Rect& clip,
  26       ContentLayerClient::GraphicsContextStatus gc_status) override {}
  27   void DidChangeLayerCanUseLCDText() override {}
  28   bool FillsBoundsCompletely() const override { return false; };
  29 };
  30
  31 TEST(PictureLayerTest, NoTilesIfEmptyBounds) {
  32   MockContentLayerClient client;
  33   scoped_refptr<PictureLayer> layer = PictureLayer::Create(&client);
  34   layer->SetBounds(gfx::Size(10, 10));
  35
  36   FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
  37   scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(&host_client);
  38   host->SetRootLayer(layer);
  39   layer->SetIsDrawable(true);
  40   layer->SavePaintProperties();
  41
  42   OcclusionTracker<Layer> occlusion(gfx::Rect(0, 0, 1000, 1000));
  43   scoped_ptr<ResourceUpdateQueue> queue(new ResourceUpdateQueue);
  44   layer->Update(queue.get(), &occlusion);
  45
  46   EXPECT_EQ(0, host->source_frame_number());
  47   host->CommitComplete();
  48   EXPECT_EQ(1, host->source_frame_number());
  49
  50   layer->SetBounds(gfx::Size(0, 0));
  51   layer->SavePaintProperties();
  52   // Intentionally skipping Update since it would normally be skipped on
  53   // a layer with empty bounds.
  54
  55   FakeProxy proxy;
  56   {
  57     DebugScopedSetImplThread impl_thread(&proxy);
  58
  59     TestSharedBitmapManager shared_bitmap_manager;
  60     FakeLayerTreeHostImpl host_impl(
  61         ImplSidePaintingSettings(), &proxy, &shared_bitmap_manager);
  62     host_impl.CreatePendingTree();
  63     scoped_ptr<FakePictureLayerImpl> layer_impl =
  64         FakePictureLayerImpl::Create(host_impl.pending_tree(), 1);
  65
  66     layer->PushPropertiesTo(layer_impl.get());
  67     EXPECT_FALSE(layer_impl->CanHaveTilings());
  68     EXPECT_TRUE(layer_impl->bounds() == gfx::Size(0, 0));
  69     EXPECT_EQ(gfx::Size(), layer_impl->raster_source()->GetSize());
  70     EXPECT_FALSE(layer_impl->raster_source()->HasRecordings());
  71   }
  72 }
  73
  74 TEST(PictureLayerTest, SuitableForGpuRasterization) {
  75   MockContentLayerClient client;
  76   scoped_refptr<PictureLayer> layer = PictureLayer::Create(&client);
  77   RecordingSource* recording_source = layer->GetRecordingSourceForTesting();
  78
  79   // Layer is suitable for gpu rasterization by default.
  80   EXPECT_TRUE(recording_source->IsSuitableForGpuRasterization());
  81   EXPECT_TRUE(layer->IsSuitableForGpuRasterization());
  82
  83   // Veto gpu rasterization.
  84   recording_source->SetUnsuitableForGpuRasterizationForTesting();
  85   EXPECT_FALSE(recording_source->IsSuitableForGpuRasterization());
  86   EXPECT_FALSE(layer->IsSuitableForGpuRasterization());
  87 }
  88
  89 TEST(PictureLayerTest, UseTileGridSize) {
  90   LayerTreeSettings settings;
  91   settings.default_tile_grid_size = gfx::Size(123, 123);
  92
  93   MockContentLayerClient client;
  94   scoped_refptr<PictureLayer> layer = PictureLayer::Create(&client);
  95   FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
  96   scoped_ptr<FakeLayerTreeHost> host =
  97       FakeLayerTreeHost::Create(&host_client, settings);
  98   host->SetRootLayer(layer);
  99
 100   // Tile-grid is set according to its setting.
 101   SkTileGridFactory::TileGridInfo info =
 102       layer->GetRecordingSourceForTesting()->GetTileGridInfoForTesting();
 103   EXPECT_EQ(info.fTileInterval.width(), 123 - 2 * info.fMargin.width());
 104   EXPECT_EQ(info.fTileInterval.height(), 123 - 2 * info.fMargin.height());
 105 }
 106
 107 }  // namespace
 108 }  // namespace cc