1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <gtest/gtest.h> 18 19 #include "renderthread/CacheManager.h" 20 #include "renderthread/EglManager.h" 21 #include "tests/common/TestUtils.h" 22 23 #include <SkImagePriv.h> 24 25 using namespace android; 26 using namespace android::uirenderer; 27 using namespace android::uirenderer::renderthread; 28 29 static size_t getCacheUsage(GrContext* grContext) { 30 size_t cacheUsage; 31 grContext->getResourceCacheUsage(nullptr, &cacheUsage); 32 return cacheUsage; 33 } 34 35 RENDERTHREAD_SKIA_PIPELINE_TEST(CacheManager, trimMemory) { 36 DisplayInfo displayInfo = renderThread.mainDisplayInfo(); 37 GrContext* grContext = renderThread.getGrContext(); 38 ASSERT_TRUE(grContext != nullptr); 39 40 // create pairs of offscreen render targets and images until we exceed the 41 // backgroundCacheSizeLimit 42 std::vector<sk_sp<SkSurface>> surfaces; 43 44 while (getCacheUsage(grContext) <= renderThread.cacheManager().getBackgroundCacheSize()) { 45 SkImageInfo info = SkImageInfo::MakeA8(displayInfo.w, displayInfo.h); 46 sk_sp<SkSurface> surface = SkSurface::MakeRenderTarget(grContext, SkBudgeted::kYes, info); 47 surface->getCanvas()->drawColor(SK_AlphaTRANSPARENT); 48 49 grContext->flush(); 50 51 surfaces.push_back(surface); 52 } 53 54 // create an image and pin it so that we have something with a unique key in the cache 55 sk_sp<Bitmap> bitmap = 56 Bitmap::allocateHeapBitmap(SkImageInfo::MakeA8(displayInfo.w, displayInfo.h)); 57 sk_sp<SkColorFilter> filter; 58 sk_sp<SkImage> image = bitmap->makeImage(&filter); 59 ASSERT_TRUE(SkImage_pinAsTexture(image.get(), grContext)); 60 61 // attempt to trim all memory while we still hold strong refs 62 renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::Complete); 63 ASSERT_TRUE(0 == grContext->getResourceCachePurgeableBytes()); 64 65 // free the surfaces 66 for (size_t i = 0; i < surfaces.size(); i++) { 67 ASSERT_TRUE(surfaces[i]->unique()); 68 surfaces[i].reset(); 69 } 70 71 // unpin the image which should add a unique purgeable key to the cache 72 SkImage_unpinAsTexture(image.get(), grContext); 73 74 // verify that we have enough purgeable bytes 75 const size_t purgeableBytes = grContext->getResourceCachePurgeableBytes(); 76 ASSERT_TRUE(renderThread.cacheManager().getBackgroundCacheSize() < purgeableBytes); 77 78 // UI hidden and make sure only some got purged (unique should remain) 79 renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::UiHidden); 80 ASSERT_TRUE(0 < grContext->getResourceCachePurgeableBytes()); 81 ASSERT_TRUE(renderThread.cacheManager().getBackgroundCacheSize() > getCacheUsage(grContext)); 82 83 // complete and make sure all get purged 84 renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::Complete); 85 ASSERT_TRUE(0 == grContext->getResourceCachePurgeableBytes()); 86 } 87
