The Tor Browser: gfx/tests/gtest/TestLayers.cpp@6474c204b198 (annotated)

gfx/tests/gtest/TestLayers.cpp@6474c204b198 (annotated)

gfx/tests/gtest/TestLayers.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* vim:set ts=2 sw=2 sts=2 et: */
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/
  */
 #include "TestLayers.h"
 #include "gtest/gtest.h"
 #include "gmock/gmock.h"
 using namespace mozilla;
 using namespace mozilla::gfx;
 using namespace mozilla::layers;
 class TestLayerManager: public LayerManager {
 public:
   TestLayerManager()
     : LayerManager()
   {}
   virtual bool EndEmptyTransaction(EndTransactionFlags aFlags = END_DEFAULT) { return false; }
   virtual already_AddRefed<ContainerLayer> CreateContainerLayer() { return nullptr; }
   virtual void GetBackendName(nsAString& aName) {}
   virtual LayersBackend GetBackendType() { return LayersBackend::LAYERS_BASIC; }
   virtual void BeginTransaction() {}
   virtual already_AddRefed<ImageLayer> CreateImageLayer() { return nullptr; }
   virtual void SetRoot(Layer* aLayer) {}
   virtual already_AddRefed<ColorLayer> CreateColorLayer() { return nullptr; }
   virtual void BeginTransactionWithTarget(gfxContext* aTarget) {}
   virtual already_AddRefed<CanvasLayer> CreateCanvasLayer() { return nullptr; }
   virtual void EndTransaction(DrawThebesLayerCallback aCallback,
                               void* aCallbackData,
                               EndTransactionFlags aFlags = END_DEFAULT) {}
   virtual int32_t GetMaxTextureSize() const { return 0; }
   virtual already_AddRefed<ThebesLayer> CreateThebesLayer() { return nullptr; }
 };
 class TestContainerLayer: public ContainerLayer {
 public:
   TestContainerLayer(LayerManager* aManager)
     : ContainerLayer(aManager, nullptr)
   {}
   virtual const char* Name() const {
     return "TestContainerLayer";
   }
   virtual LayerType GetType() const {
     return TYPE_CONTAINER;
   }
   virtual void ComputeEffectiveTransforms(const Matrix4x4& aTransformToSurface) {
     DefaultComputeEffectiveTransforms(aTransformToSurface);
   }
 };
 class TestThebesLayer: public ThebesLayer {
 public:
   TestThebesLayer(LayerManager* aManager)
     : ThebesLayer(aManager, nullptr)
   {}
   virtual const char* Name() const {
     return "TestThebesLayer";
   }
   virtual LayerType GetType() const {
     return TYPE_THEBES;
   }
   virtual void InvalidateRegion(const nsIntRegion& aRegion) {
     MOZ_CRASH();
   }
 };
 class TestUserData: public LayerUserData {
 public:
   MOCK_METHOD0(Die, void());
   virtual ~TestUserData() { Die(); }
 };
 TEST(Layers, LayerConstructor) {
   TestContainerLayer layer(nullptr);
 }
 TEST(Layers, Defaults) {
   TestContainerLayer layer(nullptr);
   ASSERT_EQ(1.0, layer.GetOpacity());
   ASSERT_EQ(1.0f, layer.GetPostXScale());
   ASSERT_EQ(1.0f, layer.GetPostYScale());
   ASSERT_EQ(nullptr, layer.GetNextSibling());
   ASSERT_EQ(nullptr, layer.GetPrevSibling());
   ASSERT_EQ(nullptr, layer.GetFirstChild());
   ASSERT_EQ(nullptr, layer.GetLastChild());
 }
 TEST(Layers, Transform) {
   TestContainerLayer layer(nullptr);
   Matrix4x4 identity;
   ASSERT_EQ(true, identity.IsIdentity());
   ASSERT_EQ(identity, layer.GetTransform());
 }
 TEST(Layers, Type) {
   TestContainerLayer layer(nullptr);
   ASSERT_EQ(nullptr, layer.AsThebesLayer());
   ASSERT_EQ(nullptr, layer.AsRefLayer());
   ASSERT_EQ(nullptr, layer.AsColorLayer());
 }
 TEST(Layers, UserData) {
   TestContainerLayer* layerPtr = new TestContainerLayer(nullptr);
   TestContainerLayer& layer = *layerPtr;
   void* key1 = (void*)1;
   void* key2 = (void*)2;
   void* key3 = (void*)3;
   TestUserData* data1 = new TestUserData;
   TestUserData* data2 = new TestUserData;
   TestUserData* data3 = new TestUserData;
   ASSERT_EQ(nullptr, layer.GetUserData(key1));
   ASSERT_EQ(nullptr, layer.GetUserData(key2));
   ASSERT_EQ(nullptr, layer.GetUserData(key3));
   layer.SetUserData(key1, data1);
   layer.SetUserData(key2, data2);
   layer.SetUserData(key3, data3);
   // Also checking that the user data is returned but not free'd
   ASSERT_EQ(data1, layer.RemoveUserData(key1).forget());
   ASSERT_EQ(data2, layer.RemoveUserData(key2).forget());
   ASSERT_EQ(data3, layer.RemoveUserData(key3).forget());
   layer.SetUserData(key1, data1);
   layer.SetUserData(key2, data2);
   layer.SetUserData(key3, data3);
   // Layer has ownership of data1-3, check that they are destroyed
   EXPECT_CALL(*data1, Die());
   EXPECT_CALL(*data2, Die());
   EXPECT_CALL(*data3, Die());
   delete layerPtr;
 }
 static
 already_AddRefed<Layer> CreateLayer(char aLayerType, LayerManager* aManager) {
   nsRefPtr<Layer> layer = nullptr;
   if (aLayerType == 'c') {
     layer = new TestContainerLayer(aManager);
   } else if (aLayerType == 't') {
     layer = new TestThebesLayer(aManager);
   }
   return layer.forget();
 }
 already_AddRefed<Layer> CreateLayerTree(
     const char* aLayerTreeDescription,
     nsIntRegion* aVisibleRegions,
     const gfx3DMatrix* aTransforms,
     nsRefPtr<LayerManager>& manager,
     nsTArray<nsRefPtr<Layer> >& aLayersOut) {
   aLayersOut.Clear();
   manager = new TestLayerManager();
   nsRefPtr<Layer> rootLayer = nullptr;
   nsRefPtr<ContainerLayer> parentContainerLayer = nullptr;
   nsRefPtr<Layer> lastLayer = nullptr;
   int layerNumber = 0;
   for (size_t i = 0; i < strlen(aLayerTreeDescription); i++) {
     if (aLayerTreeDescription[i] == '(') {
       if (!lastLayer) {
         printf("Syntax error, likely '(' character isn't preceded by a container.\n");
         MOZ_CRASH();
       }
       parentContainerLayer = lastLayer->AsContainerLayer();
       if (!parentContainerLayer) {
         printf("Layer before '(' must be a container.\n");
         MOZ_CRASH();
       }
     } else if (aLayerTreeDescription[i] == ')') {
       parentContainerLayer = parentContainerLayer->GetParent();
       lastLayer = nullptr;
     } else {
       nsRefPtr<Layer> layer = CreateLayer(aLayerTreeDescription[i], manager.get());
       if (aVisibleRegions) {
         layer->SetVisibleRegion(aVisibleRegions[layerNumber]);
       }
       if (aTransforms) {
         Matrix4x4 transform;
         ToMatrix4x4(aTransforms[layerNumber], transform);
         layer->SetBaseTransform(transform);
       }
       aLayersOut.AppendElement(layer);
       layerNumber++;
       if (rootLayer && !parentContainerLayer) {
         MOZ_CRASH();
       }
       if (!rootLayer) {
         rootLayer = layer;
       }
       if (parentContainerLayer) {
         parentContainerLayer->InsertAfter(layer, parentContainerLayer->GetLastChild());
         layer->SetParent(parentContainerLayer);
       }
       lastLayer = layer;
     }
   }
   if (rootLayer) {
     rootLayer->ComputeEffectiveTransforms(Matrix4x4());
   }
   return rootLayer.forget();
 }
 TEST(Layers, LayerTree) {
   const char* layerTreeSyntax = "c(c(tt))";
   nsIntRegion layerVisibleRegion[] = {
     nsIntRegion(nsIntRect(0,0,100,100)),
     nsIntRegion(nsIntRect(0,0,100,100)),
     nsIntRegion(nsIntRect(0,0,100,100)),
     nsIntRegion(nsIntRect(10,10,20,20)),
   };
   gfx3DMatrix transforms[] = {
     gfx3DMatrix(),
     gfx3DMatrix(),
     gfx3DMatrix(),
     gfx3DMatrix(),
   };
   nsTArray<nsRefPtr<Layer> > layers;
   nsRefPtr<LayerManager> lm;
   nsRefPtr<Layer> root = CreateLayerTree(layerTreeSyntax, layerVisibleRegion, transforms, lm, layers);
   // B2G g++ doesn't like ASSERT_NE with nullptr directly. It thinks it's
   // an int.
   Layer* nullLayer = nullptr;
   ASSERT_NE(nullLayer, layers[0]->AsContainerLayer());
   ASSERT_NE(nullLayer, layers[1]->AsContainerLayer());
   ASSERT_NE(nullLayer, layers[2]->AsThebesLayer());
   ASSERT_NE(nullLayer, layers[3]->AsThebesLayer());
 }
 static void ValidateTreePointers(Layer* aLayer) {
   if (aLayer->GetNextSibling()) {
     ASSERT_EQ(aLayer, aLayer->GetNextSibling()->GetPrevSibling());
   } else if (aLayer->GetParent()) {
     ASSERT_EQ(aLayer, aLayer->GetParent()->GetLastChild());
   }
   if (aLayer->GetPrevSibling()) {
     ASSERT_EQ(aLayer, aLayer->GetPrevSibling()->GetNextSibling());
   } else if (aLayer->GetParent()) {
     ASSERT_EQ(aLayer, aLayer->GetParent()->GetFirstChild());
   }
   if (aLayer->GetFirstChild()) {
     ASSERT_EQ(aLayer, aLayer->GetFirstChild()->GetParent());
   }
   if (aLayer->GetLastChild()) {
     ASSERT_EQ(aLayer, aLayer->GetLastChild()->GetParent());
   }
 }
 static void ValidateTreePointers(nsTArray<nsRefPtr<Layer> >& aLayers) {
   for (uint32_t i = 0; i < aLayers.Length(); i++) {
     ValidateTreePointers(aLayers[i]);
   }
 }
 TEST(Layers, RepositionChild) {
   const char* layerTreeSyntax = "c(ttt)";
   nsTArray<nsRefPtr<Layer> > layers;
   nsRefPtr<LayerManager> lm;
   nsRefPtr<Layer> root = CreateLayerTree(layerTreeSyntax, nullptr, nullptr, lm, layers);
   ContainerLayer* parent = root->AsContainerLayer();
   ValidateTreePointers(layers);
   // tree is currently like this (using indexes into layers):
   //   0
   // 1 2 3
   ASSERT_EQ(layers[2], layers[1]->GetNextSibling());
   ASSERT_EQ(layers[3], layers[2]->GetNextSibling());
   ASSERT_EQ(nullptr, layers[3]->GetNextSibling());
   parent->RepositionChild(layers[1], layers[3]);
   ValidateTreePointers(layers);
   // now the tree is like this:
   //   0
   // 2 3 1
   ASSERT_EQ(layers[3], layers[2]->GetNextSibling());
   ASSERT_EQ(layers[1], layers[3]->GetNextSibling());
   ASSERT_EQ(nullptr, layers[1]->GetNextSibling());
   parent->RepositionChild(layers[3], layers[2]);
   ValidateTreePointers(layers);
   // no change
   ASSERT_EQ(layers[3], layers[2]->GetNextSibling());
   ASSERT_EQ(layers[1], layers[3]->GetNextSibling());
   ASSERT_EQ(nullptr, layers[1]->GetNextSibling());
   parent->RepositionChild(layers[3], layers[1]);
   ValidateTreePointers(layers);
   //   0
   // 2 1 3
   ASSERT_EQ(layers[1], layers[2]->GetNextSibling());
   ASSERT_EQ(layers[3], layers[1]->GetNextSibling());
   ASSERT_EQ(nullptr, layers[3]->GetNextSibling());
   parent->RepositionChild(layers[3], nullptr);
   ValidateTreePointers(layers);
   //   0
   // 3 2 1
   ASSERT_EQ(layers[2], layers[3]->GetNextSibling());
   ASSERT_EQ(layers[1], layers[2]->GetNextSibling());
   ASSERT_EQ(nullptr, layers[1]->GetNextSibling());
 }

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gfx/tests/gtest/TestLayers.cpp@6474c204b198 (annotated)

gfx/tests/gtest/TestLayers.cpp