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| 1 // Copyright 2017 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/tiles/checker_image_tracker.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "base/memory/ptr_util.h" |
| 9 #include "base/run_loop.h" |
| 10 #include "base/threading/thread_task_runner_handle.h" |
| 11 #include "cc/test/skia_common.h" |
| 12 #include "cc/tiles/image_controller.h" |
| 13 #include "testing/gtest/include/gtest/gtest.h" |
| 14 |
| 15 namespace cc { |
| 16 namespace { |
| 17 |
| 18 const int kCheckerableImageDimension = 512; |
| 19 const int kNonCheckerableImageDimension = 16; |
| 20 |
| 21 class TestImageController : public ImageController { |
| 22 public: |
| 23 // We can use the same thread for the image worker because all use of it in |
| 24 // the ImageController is over-ridden here. |
| 25 TestImageController() |
| 26 : ImageController(base::ThreadTaskRunnerHandle::Get().get(), |
| 27 base::ThreadTaskRunnerHandle::Get()) {} |
| 28 |
| 29 ~TestImageController() override { DCHECK_EQ(locked_images_.size(), 0U); } |
| 30 |
| 31 int num_of_locked_images() const { return locked_images_.size(); } |
| 32 |
| 33 void UnlockImageDecode(ImageDecodeRequestId id) override { |
| 34 DCHECK_EQ(locked_images_.count(id), 1U); |
| 35 locked_images_.erase(id); |
| 36 } |
| 37 |
| 38 ImageDecodeRequestId QueueImageDecode( |
| 39 sk_sp<const SkImage> image, |
| 40 const ImageDecodedCallback& callback) override { |
| 41 ImageDecodeRequestId request_id = next_image_request_id_++; |
| 42 |
| 43 // The tracker should request a decode only once. |
| 44 EXPECT_EQ(decodes_requested_.count(image->uniqueID()), 0u); |
| 45 decodes_requested_.insert(image->uniqueID()); |
| 46 |
| 47 locked_images_.insert(request_id); |
| 48 |
| 49 // Post the callback asynchronously to match the behaviour in |
| 50 // ImageController. |
| 51 worker_task_runner_->PostTask(FROM_HERE, base::Bind(callback, request_id)); |
| 52 |
| 53 return request_id; |
| 54 } |
| 55 |
| 56 private: |
| 57 ImageDecodeRequestId next_image_request_id_ = 1U; |
| 58 std::unordered_set<ImageDecodeRequestId> locked_images_; |
| 59 ImageIdFlatSet decodes_requested_; |
| 60 }; |
| 61 |
| 62 class CheckerImageTrackerTest : public testing::Test, |
| 63 public CheckerImageTrackerClient { |
| 64 public: |
| 65 enum class ImageType { CHECKERABLE, NON_CHECKERABLE }; |
| 66 |
| 67 void SetUpTracker(bool checker_images_enabled) { |
| 68 checker_image_tracker_ = base::MakeUnique<CheckerImageTracker>( |
| 69 &image_controller_, this, checker_images_enabled); |
| 70 } |
| 71 |
| 72 void TearDown() override { checker_image_tracker_.reset(); } |
| 73 |
| 74 DrawImage CreateImage(ImageType image_type) { |
| 75 int dimension = image_type == ImageType::CHECKERABLE |
| 76 ? kCheckerableImageDimension |
| 77 : kNonCheckerableImageDimension; |
| 78 sk_sp<SkImage> image = |
| 79 CreateDiscardableImage(gfx::Size(dimension, dimension)); |
| 80 return DrawImage(image, SkIRect::MakeWH(image->width(), image->height()), |
| 81 kNone_SkFilterQuality, SkMatrix::I()); |
| 82 } |
| 83 |
| 84 // CheckerImageTrackerClient implementation. |
| 85 void NeedsInvalidationForCheckerImagedTiles() override { |
| 86 invalidation_request_pending_ = true; |
| 87 } |
| 88 |
| 89 protected: |
| 90 TestImageController image_controller_; |
| 91 std::unique_ptr<CheckerImageTracker> checker_image_tracker_; |
| 92 |
| 93 bool invalidation_request_pending_ = false; |
| 94 }; |
| 95 |
| 96 TEST_F(CheckerImageTrackerTest, CheckerImagesDisabled) { |
| 97 // Ensures that the tracker doesn't filter any images for checkering if it is |
| 98 // disabled. |
| 99 SetUpTracker(false); |
| 100 |
| 101 std::vector<DrawImage> draw_images; |
| 102 ImageIdFlatSet checkered_images; |
| 103 draw_images.push_back(CreateImage(ImageType::CHECKERABLE)); |
| 104 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 105 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 106 EXPECT_EQ(draw_images.size(), 1U); |
| 107 EXPECT_EQ(checkered_images.size(), 0U); |
| 108 EXPECT_EQ(image_controller_.num_of_locked_images(), 0); |
| 109 } |
| 110 |
| 111 TEST_F(CheckerImageTrackerTest, UpdatesImagesAtomically) { |
| 112 // Ensures that the tracker updates images atomically for each frame. |
| 113 SetUpTracker(true); |
| 114 |
| 115 DrawImage checkerable_image = CreateImage(ImageType::CHECKERABLE); |
| 116 DrawImage non_checkerable_image = CreateImage(ImageType::NON_CHECKERABLE); |
| 117 ImageIdFlatSet checkered_images; |
| 118 std::vector<DrawImage> draw_images; |
| 119 |
| 120 // First request to filter images. |
| 121 draw_images.push_back(checkerable_image); |
| 122 draw_images.push_back(non_checkerable_image); |
| 123 draw_images.push_back(checkerable_image); |
| 124 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 125 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 126 |
| 127 EXPECT_EQ(draw_images.size(), 1U); |
| 128 EXPECT_EQ(draw_images[0].image(), non_checkerable_image.image()); |
| 129 EXPECT_EQ(checkered_images.size(), 1U); |
| 130 EXPECT_EQ(checkered_images.count(checkerable_image.image()->uniqueID()), 1U); |
| 131 EXPECT_EQ(image_controller_.num_of_locked_images(), 1); |
| 132 |
| 133 // Run pending task to indicate completion of decode request to the tracker. |
| 134 // This should send an impl-side invalidation request to the client. The |
| 135 // images must remain locked until the sync tree to which the invalidations |
| 136 // are added is activated. |
| 137 base::RunLoop().RunUntilIdle(); |
| 138 EXPECT_TRUE(invalidation_request_pending_); |
| 139 EXPECT_EQ(image_controller_.num_of_locked_images(), 1); |
| 140 |
| 141 // Continue checkering the image until the set of images to invalidate is |
| 142 // pulled. |
| 143 draw_images.clear(); |
| 144 draw_images.push_back(checkerable_image); |
| 145 checkered_images.clear(); |
| 146 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 147 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 148 EXPECT_EQ(draw_images.size(), 0U); |
| 149 EXPECT_EQ(checkered_images.size(), 1U); |
| 150 EXPECT_EQ(image_controller_.num_of_locked_images(), 1); |
| 151 |
| 152 ImageIdFlatSet invalidated_images = |
| 153 checker_image_tracker_->TakeImagesToInvalidateOnSyncTree(); |
| 154 EXPECT_EQ(invalidated_images.size(), 1U); |
| 155 EXPECT_EQ(invalidated_images.count(checkerable_image.image()->uniqueID()), |
| 156 1U); |
| 157 |
| 158 // Use the same set of draw images to ensure that they are not checkered on |
| 159 // the pending tree now. |
| 160 draw_images.clear(); |
| 161 draw_images.push_back(checkerable_image); |
| 162 draw_images.push_back(non_checkerable_image); |
| 163 checkered_images.clear(); |
| 164 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 165 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 166 EXPECT_EQ(draw_images.size(), 2U); |
| 167 EXPECT_EQ(checkered_images.size(), 0U); |
| 168 |
| 169 // Use this set to make the same request from the active tree, we should |
| 170 // continue checkering this image on the active tree until activation. |
| 171 draw_images.clear(); |
| 172 draw_images.push_back(checkerable_image); |
| 173 draw_images.push_back(non_checkerable_image); |
| 174 checkered_images.clear(); |
| 175 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 176 &draw_images, &checkered_images, WhichTree::ACTIVE_TREE); |
| 177 EXPECT_EQ(draw_images.size(), 1U); |
| 178 EXPECT_EQ(draw_images[0].image(), non_checkerable_image.image()); |
| 179 EXPECT_EQ(checkered_images.size(), 1U); |
| 180 EXPECT_EQ(checkered_images.count(checkerable_image.image()->uniqueID()), 1U); |
| 181 |
| 182 // Activate the sync tree. The images should be unlocked upon activation. |
| 183 EXPECT_EQ(image_controller_.num_of_locked_images(), 1); |
| 184 checker_image_tracker_->DidActivateSyncTree(); |
| 185 } |
| 186 |
| 187 TEST_F(CheckerImageTrackerTest, NoConsecutiveCheckeringForImage) { |
| 188 // Ensures that if an image is decoded and invalidated once, it is not |
| 189 // checkered again in subsequent frames. |
| 190 SetUpTracker(true); |
| 191 |
| 192 DrawImage checkerable_image = CreateImage(ImageType::CHECKERABLE); |
| 193 DrawImage non_checkerable_image = CreateImage(ImageType::NON_CHECKERABLE); |
| 194 ImageIdFlatSet checkered_images; |
| 195 std::vector<DrawImage> draw_images; |
| 196 |
| 197 draw_images.clear(); |
| 198 draw_images.push_back(checkerable_image); |
| 199 checkered_images.clear(); |
| 200 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 201 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 202 EXPECT_EQ(draw_images.size(), 0U); |
| 203 EXPECT_EQ(checkered_images.size(), 1U); |
| 204 |
| 205 // Trigger decode completion, take images to invalidate and activate the sync |
| 206 // tree. |
| 207 base::RunLoop().RunUntilIdle(); |
| 208 checker_image_tracker_->TakeImagesToInvalidateOnSyncTree(); |
| 209 checker_image_tracker_->DidActivateSyncTree(); |
| 210 |
| 211 // Subsequent requests for this image should not be checkered. |
| 212 draw_images.clear(); |
| 213 draw_images.push_back(checkerable_image); |
| 214 checkered_images.clear(); |
| 215 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 216 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 217 EXPECT_EQ(draw_images.size(), 1U); |
| 218 EXPECT_EQ(checkered_images.size(), 0U); |
| 219 } |
| 220 |
| 221 TEST_F(CheckerImageTrackerTest, |
| 222 TracksCheckeredImagesSeperatelyInConsecutiveFrames) { |
| 223 // Ensures that the set of images being checkered on the pending tree, and the |
| 224 // active tree are tracked correctly. |
| 225 SetUpTracker(true); |
| 226 |
| 227 DrawImage checkerable_image1 = CreateImage(ImageType::CHECKERABLE); |
| 228 ImageIdFlatSet checkered_images; |
| 229 std::vector<DrawImage> draw_images; |
| 230 |
| 231 // First request to filter images on the pending and active tree. |
| 232 draw_images.push_back(checkerable_image1); |
| 233 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 234 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 235 EXPECT_EQ(draw_images.size(), 0U); |
| 236 EXPECT_EQ(checkered_images.size(), 1U); |
| 237 |
| 238 // The image is also checkered on the active tree while a decode request is |
| 239 // pending. |
| 240 draw_images.clear(); |
| 241 checkered_images.clear(); |
| 242 draw_images.push_back(checkerable_image1); |
| 243 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 244 &draw_images, &checkered_images, WhichTree::ACTIVE_TREE); |
| 245 EXPECT_EQ(draw_images.size(), 0U); |
| 246 EXPECT_EQ(checkered_images.size(), 1U); |
| 247 |
| 248 // Trigger decode completion and take images to invalidate on the sync tree. |
| 249 base::RunLoop().RunUntilIdle(); |
| 250 EXPECT_TRUE(invalidation_request_pending_); |
| 251 ImageIdFlatSet invalidated_images = |
| 252 checker_image_tracker_->TakeImagesToInvalidateOnSyncTree(); |
| 253 EXPECT_EQ(invalidated_images.size(), 1U); |
| 254 EXPECT_EQ(invalidated_images.count(checkerable_image1.image()->uniqueID()), |
| 255 1U); |
| 256 |
| 257 // Second request to filter the same image on the pending and active tree. It |
| 258 // should be checkered on the active tree, but not the pending tree. |
| 259 draw_images.clear(); |
| 260 checkered_images.clear(); |
| 261 draw_images.push_back(checkerable_image1); |
| 262 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 263 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 264 EXPECT_EQ(draw_images.size(), 1U); |
| 265 EXPECT_EQ(checkered_images.size(), 0U); |
| 266 |
| 267 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 268 &draw_images, &checkered_images, WhichTree::ACTIVE_TREE); |
| 269 EXPECT_EQ(draw_images.size(), 0U); |
| 270 EXPECT_EQ(checkered_images.size(), 1U); |
| 271 |
| 272 // New checkerable image on the pending tree. |
| 273 DrawImage checkerable_image2 = CreateImage(ImageType::CHECKERABLE); |
| 274 draw_images.clear(); |
| 275 checkered_images.clear(); |
| 276 draw_images.push_back(checkerable_image2); |
| 277 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 278 &draw_images, &checkered_images, WhichTree::PENDING_TREE); |
| 279 EXPECT_EQ(draw_images.size(), 0U); |
| 280 EXPECT_EQ(checkered_images.size(), 1U); |
| 281 |
| 282 // Activate the sync tree. The initial image should no longer be checkered on |
| 283 // the active tree. |
| 284 checker_image_tracker_->DidActivateSyncTree(); |
| 285 |
| 286 draw_images.clear(); |
| 287 checkered_images.clear(); |
| 288 draw_images.push_back(checkerable_image1); |
| 289 checker_image_tracker_->FilterImagesForCheckeringForTile( |
| 290 &draw_images, &checkered_images, WhichTree::ACTIVE_TREE); |
| 291 EXPECT_EQ(draw_images.size(), 1U); |
| 292 EXPECT_EQ(checkered_images.size(), 0U); |
| 293 } |
| 294 |
| 295 } // namespace |
| 296 } // namespace cc |
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