cc/surfaces/surface_factory_unittest.cc

   1 // Copyright 2014 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/output/compositor_frame.h"
   6 #include "cc/output/delegated_frame_data.h"
   7 #include "cc/surfaces/surface.h"
   8 #include "cc/surfaces/surface_factory.h"
   9 #include "cc/surfaces/surface_factory_client.h"
  10 #include "cc/surfaces/surface_manager.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12 #include "ui/gfx/size.h"
  13
  14 namespace cc {
  15 namespace {
  16
  17 class TestSurfaceFactoryClient : public SurfaceFactoryClient {
  18  public:
  19   TestSurfaceFactoryClient() {}
  20   virtual ~TestSurfaceFactoryClient() {}
  21
  22   virtual void ReturnResources(
  23       const ReturnedResourceArray& resources) OVERRIDE {
  24     returned_resources_.insert(
  25         returned_resources_.end(), resources.begin(), resources.end());
  26   }
  27
  28   const ReturnedResourceArray& returned_resources() const {
  29     return returned_resources_;
  30   }
  31
  32   void clear_returned_resources() { returned_resources_.clear(); }
  33
  34  private:
  35   ReturnedResourceArray returned_resources_;
  36
  37   DISALLOW_COPY_AND_ASSIGN(TestSurfaceFactoryClient);
  38 };
  39
  40 class SurfaceFactoryTest : public testing::Test {
  41  public:
  42   SurfaceFactoryTest() : factory_(&manager_, &client_), surface_id_(3) {
  43     factory_.Create(surface_id_, gfx::Size(5, 5));
  44   }
  45
  46   virtual ~SurfaceFactoryTest() { factory_.Destroy(surface_id_); }
  47
  48   void SubmitFrameWithResources(ResourceProvider::ResourceId* resource_ids,
  49                                 size_t num_resource_ids) {
  50     scoped_ptr<DelegatedFrameData> frame_data(new DelegatedFrameData);
  51     for (size_t i = 0u; i < num_resource_ids; ++i) {
  52       TransferableResource resource;
  53       resource.id = resource_ids[i];
  54       resource.mailbox_holder.texture_target = GL_TEXTURE_2D;
  55       frame_data->resource_list.push_back(resource);
  56     }
  57     scoped_ptr<CompositorFrame> frame(new CompositorFrame);
  58     frame->delegated_frame_data = frame_data.Pass();
  59     factory_.SubmitFrame(surface_id_, frame.Pass(), base::Closure());
  60   }
  61
  62   void UnrefResources(ResourceProvider::ResourceId* ids_to_unref,
  63                       int* counts_to_unref,
  64                       size_t num_ids_to_unref) {
  65     ReturnedResourceArray unref_array;
  66     for (size_t i = 0; i < num_ids_to_unref; ++i) {
  67       ReturnedResource resource;
  68       resource.id = ids_to_unref[i];
  69       resource.count = counts_to_unref[i];
  70       unref_array.push_back(resource);
  71     }
  72     factory_.UnrefResources(unref_array);
  73   }
  74
  75   void CheckReturnedResourcesMatchExpected(
  76       ResourceProvider::ResourceId* expected_returned_ids,
  77       int* expected_returned_counts,
  78       size_t expected_resources) {
  79     const ReturnedResourceArray& actual_resources =
  80         client_.returned_resources();
  81     ASSERT_EQ(expected_resources, actual_resources.size());
  82     for (size_t i = 0; i < expected_resources; ++i) {
  83       ReturnedResource resource = actual_resources[i];
  84       EXPECT_EQ(expected_returned_ids[i], resource.id);
  85       EXPECT_EQ(expected_returned_counts[i], resource.count);
  86     }
  87     client_.clear_returned_resources();
  88   }
  89
  90   void RefCurrentFrameResources() {
  91     Surface* surface = manager_.GetSurfaceForId(surface_id_);
  92     factory_.RefResources(
  93         surface->GetEligibleFrame()->delegated_frame_data->resource_list);
  94   }
  95
  96  protected:
  97   SurfaceManager manager_;
  98   TestSurfaceFactoryClient client_;
  99   SurfaceFactory factory_;
 100   SurfaceId surface_id_;
 101 };
 102
 103 // Tests submitting a frame with resources followed by one with no resources
 104 // with no resource provider action in between.
 105 TEST_F(SurfaceFactoryTest, ResourceLifetimeSimple) {
 106   ResourceProvider::ResourceId first_frame_ids[] = {1, 2, 3};
 107   SubmitFrameWithResources(first_frame_ids, arraysize(first_frame_ids));
 108
 109   // All of the resources submitted in the first frame are still in use at this
 110   // time by virtue of being in the pending frame, so none can be returned to
 111   // the client yet.
 112   EXPECT_EQ(0u, client_.returned_resources().size());
 113   client_.clear_returned_resources();
 114
 115   // The second frame references no resources and thus should make all resources
 116   // available to be returned.
 117   SubmitFrameWithResources(NULL, 0);
 118
 119   ResourceProvider::ResourceId expected_returned_ids[] = {1, 2, 3};
 120   int expected_returned_counts[] = {1, 1, 1};
 121   CheckReturnedResourcesMatchExpected(expected_returned_ids,
 122                                       expected_returned_counts,
 123                                       arraysize(expected_returned_counts));
 124 }
 125
 126 // Tests submitting a frame with resources followed by one with no resources
 127 // with the resource provider holding everything alive.
 128 TEST_F(SurfaceFactoryTest, ResourceLifetimeSimpleWithProviderHoldingAlive) {
 129   ResourceProvider::ResourceId first_frame_ids[] = {1, 2, 3};
 130   SubmitFrameWithResources(first_frame_ids, arraysize(first_frame_ids));
 131
 132   // All of the resources submitted in the first frame are still in use at this
 133   // time by virtue of being in the pending frame, so none can be returned to
 134   // the client yet.
 135   EXPECT_EQ(0u, client_.returned_resources().size());
 136   client_.clear_returned_resources();
 137
 138   // Hold on to everything.
 139   RefCurrentFrameResources();
 140
 141   // The second frame references no resources and thus should make all resources
 142   // available to be returned as soon as the resource provider releases them.
 143   SubmitFrameWithResources(NULL, 0);
 144
 145   EXPECT_EQ(0u, client_.returned_resources().size());
 146   client_.clear_returned_resources();
 147
 148   int release_counts[] = {1, 1, 1};
 149   UnrefResources(first_frame_ids, release_counts, arraysize(first_frame_ids));
 150
 151   ResourceProvider::ResourceId expected_returned_ids[] = {1, 2, 3};
 152   int expected_returned_counts[] = {1, 1, 1};
 153   CheckReturnedResourcesMatchExpected(expected_returned_ids,
 154                                       expected_returned_counts,
 155                                       arraysize(expected_returned_counts));
 156 }
 157
 158 // Tests referencing a resource, unref'ing it to zero, then using it again
 159 // before returning it to the client.
 160 TEST_F(SurfaceFactoryTest, ResourceReusedBeforeReturn) {
 161   ResourceProvider::ResourceId first_frame_ids[] = {7};
 162   SubmitFrameWithResources(first_frame_ids, arraysize(first_frame_ids));
 163
 164   // This removes all references to resource id 7.
 165   SubmitFrameWithResources(NULL, 0);
 166
 167   // This references id 7 again.
 168   SubmitFrameWithResources(first_frame_ids, arraysize(first_frame_ids));
 169
 170   // This removes it again.
 171   SubmitFrameWithResources(NULL, 0);
 172
 173   // Now it should be returned.
 174   // We don't care how many entries are in the returned array for 7, so long as
 175   // the total returned count matches the submitted count.
 176   const ReturnedResourceArray& returned = client_.returned_resources();
 177   size_t return_count = 0;
 178   for (size_t i = 0; i < returned.size(); ++i) {
 179     EXPECT_EQ(7u, returned[i].id);
 180     return_count += returned[i].count;
 181   }
 182   EXPECT_EQ(2u, return_count);
 183 }
 184
 185 // Tests having resources referenced multiple times, as if referenced by
 186 // multiple providers.
 187 TEST_F(SurfaceFactoryTest, ResourceRefMultipleTimes) {
 188   ResourceProvider::ResourceId first_frame_ids[] = {3, 4};
 189   SubmitFrameWithResources(first_frame_ids, arraysize(first_frame_ids));
 190
 191   // Ref resources from the first frame twice.
 192   RefCurrentFrameResources();
 193   RefCurrentFrameResources();
 194
 195   ResourceProvider::ResourceId second_frame_ids[] = {4, 5};
 196   SubmitFrameWithResources(second_frame_ids, arraysize(second_frame_ids));
 197
 198   // Ref resources from the second frame 3 times.
 199   RefCurrentFrameResources();
 200   RefCurrentFrameResources();
 201   RefCurrentFrameResources();
 202
 203   // Submit a frame with no resources to remove all current frame refs from
 204   // submitted resources.
 205   SubmitFrameWithResources(NULL, 0);
 206
 207   EXPECT_EQ(0u, client_.returned_resources().size());
 208   client_.clear_returned_resources();
 209
 210   // Expected current refs:
 211   //  3 -> 2
 212   //  4 -> 2 + 3 = 5
 213   //  5 -> 3
 214   {
 215     SCOPED_TRACE("unref all 3");
 216     ResourceProvider::ResourceId ids_to_unref[] = {3, 4, 5};
 217     int counts[] = {1, 1, 1};
 218     UnrefResources(ids_to_unref, counts, arraysize(ids_to_unref));
 219
 220     EXPECT_EQ(0u, client_.returned_resources().size());
 221     client_.clear_returned_resources();
 222
 223     UnrefResources(ids_to_unref, counts, arraysize(ids_to_unref));
 224
 225     ResourceProvider::ResourceId expected_returned_ids[] = {3};
 226     int expected_returned_counts[] = {1};
 227     CheckReturnedResourcesMatchExpected(expected_returned_ids,
 228                                         expected_returned_counts,
 229                                         arraysize(expected_returned_counts));
 230   }
 231
 232   // Expected refs remaining:
 233   //  4 -> 3
 234   //  5 -> 1
 235   {
 236     SCOPED_TRACE("unref 4 and 5");
 237     ResourceProvider::ResourceId ids_to_unref[] = {4, 5};
 238     int counts[] = {1, 1};
 239     UnrefResources(ids_to_unref, counts, arraysize(ids_to_unref));
 240
 241     ResourceProvider::ResourceId expected_returned_ids[] = {5};
 242     int expected_returned_counts[] = {1};
 243     CheckReturnedResourcesMatchExpected(expected_returned_ids,
 244                                         expected_returned_counts,
 245                                         arraysize(expected_returned_counts));
 246   }
 247
 248   // Now, just 2 refs remaining on resource 4. Unref both at once and make sure
 249   // the returned count is correct.
 250   {
 251     SCOPED_TRACE("unref only 4");
 252     ResourceProvider::ResourceId ids_to_unref[] = {4};
 253     int counts[] = {2};
 254     UnrefResources(ids_to_unref, counts, arraysize(ids_to_unref));
 255
 256     ResourceProvider::ResourceId expected_returned_ids[] = {4};
 257     int expected_returned_counts[] = {2};
 258     CheckReturnedResourcesMatchExpected(expected_returned_ids,
 259                                         expected_returned_counts,
 260                                         arraysize(expected_returned_counts));
 261   }
 262 }
 263
 264 TEST_F(SurfaceFactoryTest, ResourceLifetime) {
 265   ResourceProvider::ResourceId first_frame_ids[] = {1, 2, 3};
 266   SubmitFrameWithResources(first_frame_ids, arraysize(first_frame_ids));
 267
 268   // All of the resources submitted in the first frame are still in use at this
 269   // time by virtue of being in the pending frame, so none can be returned to
 270   // the client yet.
 271   EXPECT_EQ(0u, client_.returned_resources().size());
 272   client_.clear_returned_resources();
 273
 274   // The second frame references some of the same resources, but some different
 275   // ones. We expect to receive back resource 1 with a count of 1 since it was
 276   // only referenced by the first frame.
 277   ResourceProvider::ResourceId second_frame_ids[] = {2, 3, 4};
 278   SubmitFrameWithResources(second_frame_ids, arraysize(second_frame_ids));
 279
 280   {
 281     SCOPED_TRACE("second frame");
 282     ResourceProvider::ResourceId expected_returned_ids[] = {1};
 283     int expected_returned_counts[] = {1};
 284     CheckReturnedResourcesMatchExpected(expected_returned_ids,
 285                                         expected_returned_counts,
 286                                         arraysize(expected_returned_counts));
 287   }
 288
 289   // The third frame references a disjoint set of resources, so we expect to
 290   // receive back all resources from the first and second frames. Resource IDs 2
 291   // and 3 will have counts of 2, since they were used in both frames, and
 292   // resource ID 4 will have a count of 1.
 293   ResourceProvider::ResourceId third_frame_ids[] = {10, 11, 12, 13};
 294   SubmitFrameWithResources(third_frame_ids, arraysize(third_frame_ids));
 295
 296   {
 297     SCOPED_TRACE("third frame");
 298     ResourceProvider::ResourceId expected_returned_ids[] = {2, 3, 4};
 299     int expected_returned_counts[] = {2, 2, 1};
 300     CheckReturnedResourcesMatchExpected(expected_returned_ids,
 301                                         expected_returned_counts,
 302                                         arraysize(expected_returned_counts));
 303   }
 304
 305   // Simulate a ResourceProvider taking a ref on all of the resources.
 306   RefCurrentFrameResources();
 307
 308   ResourceProvider::ResourceId fourth_frame_ids[] = {12, 13};
 309   SubmitFrameWithResources(fourth_frame_ids, arraysize(fourth_frame_ids));
 310
 311   EXPECT_EQ(0u, client_.returned_resources().size());
 312
 313   RefCurrentFrameResources();
 314
 315   // All resources are still being used by the external reference, so none can
 316   // be returned to the client.
 317   EXPECT_EQ(0u, client_.returned_resources().size());
 318
 319   // Release resources associated with the first RefCurrentFrameResources() call
 320   // first.
 321   {
 322     ResourceProvider::ResourceId ids_to_unref[] = {10, 11, 12, 13};
 323     int counts[] = {1, 1, 1, 1};
 324     UnrefResources(ids_to_unref, counts, arraysize(ids_to_unref));
 325   }
 326
 327   {
 328     SCOPED_TRACE("fourth frame, first unref");
 329     ResourceProvider::ResourceId expected_returned_ids[] = {10, 11};
 330     int expected_returned_counts[] = {1, 1};
 331     CheckReturnedResourcesMatchExpected(expected_returned_ids,
 332                                         expected_returned_counts,
 333                                         arraysize(expected_returned_counts));
 334   }
 335
 336   {
 337     ResourceProvider::ResourceId ids_to_unref[] = {12, 13};
 338     int counts[] = {1, 1};
 339     UnrefResources(ids_to_unref, counts, arraysize(ids_to_unref));
 340   }
 341
 342   // Resources 12 and 13 are still in use by the current frame, so they
 343   // shouldn't be available to be returned.
 344   EXPECT_EQ(0u, client_.returned_resources().size());
 345
 346   // If we submit an empty frame, however, they should become available.
 347   SubmitFrameWithResources(NULL, 0u);
 348
 349   {
 350     SCOPED_TRACE("fourth frame, second unref");
 351     ResourceProvider::ResourceId expected_returned_ids[] = {12, 13};
 352     int expected_returned_counts[] = {2, 2};
 353     CheckReturnedResourcesMatchExpected(expected_returned_ids,
 354                                         expected_returned_counts,
 355                                         arraysize(expected_returned_counts));
 356   }
 357 }
 358
 359 }  // namespace
 360 }  // namespace cc