| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/tiles/image_decode_cache.h" |
| #include "cc/tiles/image_manager.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace cc { |
| |
| class TestableCache : public ImageDecodeCache { |
| public: |
| bool GetTaskForImageAndRef(const DrawImage& image, |
| const TracingInfo& tracing_info, |
| scoped_refptr<TileTask>* task) override { |
| *task = nullptr; |
| ++number_of_refs_; |
| return true; |
| } |
| |
| void UnrefImage(const DrawImage& image) override { |
| ASSERT_GT(number_of_refs_, 0); |
| --number_of_refs_; |
| } |
| DecodedDrawImage GetDecodedImageForDraw(const DrawImage& image) override { |
| return DecodedDrawImage(nullptr, kNone_SkFilterQuality); |
| } |
| void DrawWithImageFinished(const DrawImage& image, |
| const DecodedDrawImage& decoded_image) override {} |
| void ReduceCacheUsage() override {} |
| void SetShouldAggressivelyFreeResources( |
| bool aggressively_free_resources) override {} |
| |
| int number_of_refs() const { return number_of_refs_; } |
| |
| private: |
| int number_of_refs_ = 0; |
| }; |
| |
| TEST(ImageManagerTest, NullCacheUnrefsImages) { |
| TestableCache cache; |
| ImageManager manager; |
| manager.SetImageDecodeCache(&cache); |
| |
| std::vector<DrawImage> images(10); |
| ImageDecodeCache::TracingInfo tracing_info; |
| |
| ASSERT_EQ(10u, images.size()); |
| auto tasks = manager.SetPredecodeImages(std::move(images), tracing_info); |
| EXPECT_EQ(0u, tasks.size()); |
| EXPECT_EQ(10, cache.number_of_refs()); |
| |
| manager.SetImageDecodeCache(nullptr); |
| EXPECT_EQ(0, cache.number_of_refs()); |
| } |
| |
| } // namespace cc |