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
getCacheUsage(GrDirectContext * grContext)29 static size_t getCacheUsage(GrDirectContext* grContext) {
30 size_t cacheUsage;
31 grContext->getResourceCacheUsage(nullptr, &cacheUsage);
32 return cacheUsage;
33 }
34
RENDERTHREAD_SKIA_PIPELINE_TEST(CacheManager,trimMemory)35 RENDERTHREAD_SKIA_PIPELINE_TEST(CacheManager, trimMemory) {
36 int32_t width = DeviceInfo::get()->getWidth();
37 int32_t height = DeviceInfo::get()->getHeight();
38 GrDirectContext* grContext = renderThread.getGrContext();
39 ASSERT_TRUE(grContext != nullptr);
40
41 // create pairs of offscreen render targets and images until we exceed the
42 // backgroundCacheSizeLimit
43 std::vector<sk_sp<SkSurface>> surfaces;
44
45 while (getCacheUsage(grContext) <= renderThread.cacheManager().getBackgroundCacheSize()) {
46 SkImageInfo info = SkImageInfo::MakeA8(width, height);
47 sk_sp<SkSurface> surface = SkSurface::MakeRenderTarget(grContext, SkBudgeted::kYes, info);
48 surface->getCanvas()->drawColor(SK_AlphaTRANSPARENT);
49
50 grContext->flushAndSubmit();
51
52 surfaces.push_back(surface);
53 }
54
55 // create an image and pin it so that we have something with a unique key in the cache
56 sk_sp<Bitmap> bitmap = Bitmap::allocateHeapBitmap(SkImageInfo::MakeA8(width, height));
57 sk_sp<SkImage> image = bitmap->makeImage();
58 ASSERT_TRUE(SkImage_pinAsTexture(image.get(), grContext));
59
60 // attempt to trim all memory while we still hold strong refs
61 renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::Complete);
62 ASSERT_TRUE(0 == grContext->getResourceCachePurgeableBytes());
63
64 // free the surfaces
65 for (size_t i = 0; i < surfaces.size(); i++) {
66 ASSERT_TRUE(surfaces[i]->unique());
67 surfaces[i].reset();
68 }
69
70 // unpin the image which should add a unique purgeable key to the cache
71 SkImage_unpinAsTexture(image.get(), grContext);
72
73 // verify that we have enough purgeable bytes
74 const size_t purgeableBytes = grContext->getResourceCachePurgeableBytes();
75 ASSERT_TRUE(renderThread.cacheManager().getBackgroundCacheSize() < purgeableBytes);
76
77 // UI hidden and make sure only some got purged (unique should remain)
78 renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::UiHidden);
79 ASSERT_TRUE(0 < grContext->getResourceCachePurgeableBytes());
80 ASSERT_TRUE(renderThread.cacheManager().getBackgroundCacheSize() > getCacheUsage(grContext));
81
82 // complete and make sure all get purged
83 renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::Complete);
84 ASSERT_TRUE(0 == grContext->getResourceCachePurgeableBytes());
85 }
86