reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2013 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "Test.h" |
| 9 | #include "SkScaledImageCache.h" |
| 10 | |
| 11 | static void make_bm(SkBitmap* bm, int w, int h) { |
| 12 | bm->setConfig(SkBitmap::kARGB_8888_Config, w, h); |
| 13 | bm->allocPixels(); |
| 14 | } |
| 15 | |
| 16 | static void TestImageCache(skiatest::Reporter* reporter) { |
| 17 | static const int COUNT = 10; |
| 18 | static const int DIM = 256; |
| 19 | static const size_t defLimit = DIM * DIM * 4 * COUNT + 1024; // 1K slop |
| 20 | SkScaledImageCache cache(defLimit); |
| 21 | SkScaledImageCache::ID* id; |
| 22 | |
| 23 | SkBitmap bm[COUNT]; |
| 24 | |
| 25 | SkScalar scale = 2; |
| 26 | for (size_t i = 0; i < COUNT; ++i) { |
| 27 | SkBitmap tmp; |
| 28 | |
| 29 | make_bm(&bm[i], DIM, DIM); |
| 30 | id = cache.findAndLock(bm[i], scale, scale, &tmp); |
| 31 | REPORTER_ASSERT(reporter, NULL == id); |
| 32 | |
| 33 | make_bm(&tmp, DIM, DIM); |
| 34 | id = cache.addAndLock(bm[i], scale, scale, tmp); |
| 35 | REPORTER_ASSERT(reporter, NULL != id); |
| 36 | |
| 37 | SkBitmap tmp2; |
| 38 | SkScaledImageCache::ID* id2 = cache.findAndLock(bm[i], scale, scale, |
| 39 | &tmp2); |
| 40 | REPORTER_ASSERT(reporter, id == id2); |
| 41 | REPORTER_ASSERT(reporter, tmp.pixelRef() == tmp2.pixelRef()); |
| 42 | REPORTER_ASSERT(reporter, tmp.width() == tmp2.width()); |
| 43 | REPORTER_ASSERT(reporter, tmp.height() == tmp2.height()); |
| 44 | cache.unlock(id2); |
| 45 | |
| 46 | cache.unlock(id); |
| 47 | } |
| 48 | |
| 49 | // stress test, should trigger purges |
| 50 | for (size_t i = 0; i < COUNT * 100; ++i) { |
| 51 | SkBitmap tmp; |
| 52 | |
| 53 | make_bm(&tmp, DIM, DIM); |
| 54 | id = cache.addAndLock(bm[0], scale, scale, tmp); |
| 55 | REPORTER_ASSERT(reporter, NULL != id); |
| 56 | cache.unlock(id); |
| 57 | |
| 58 | scale += 1; |
| 59 | } |
| 60 | |
| 61 | cache.setByteLimit(0); |
| 62 | } |
| 63 | |
| 64 | #include "TestClassDef.h" |
| 65 | DEFINE_TESTCLASS("ImageCache", TestImageCacheClass, TestImageCache) |