YUV planes cache

tests/YUVCacheTest.cpp

+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkCachedData.h"
+#include "SkYUVPlanesCache.h"
+#include "SkResourceCache.h"
+#include "Test.h"
+
+enum LockedState {
+    kUnlocked,
+    kLocked,
+};
+
+enum CachedState {
+    kNotInCache,
+    kInCache,
+};
+
+static void check_data(skiatest::Reporter* reporter, SkCachedData* data,
+                       int refcnt, CachedState cacheState, LockedState lockedState) {
+    REPORTER_ASSERT(reporter, data->testing_only_getRefCnt() == refcnt);
+    REPORTER_ASSERT(reporter, data->testing_only_isInCache() == (kInCache == cacheState));
+    bool isLocked = (data->data() != NULL);
+    REPORTER_ASSERT(reporter, isLocked == (lockedState == kLocked));
+}
+
+DEF_TEST(YUVPlanesCache, reporter) {
+    SkResourceCache cache(1024);
+
+    SkYUVPlanesCache::Info yuvInfo;
+    for (int i = 0; i < 3; ++i) {
+        yuvInfo.fSize[i].fWidth = 20 * i;
+        yuvInfo.fSize[i].fHeight = 10 * i;
+        yuvInfo.fSizeInMemory[i] = 800 * i;
+        yuvInfo.fRowBytes[i] = 80 * i;
+    }
+    yuvInfo.fColorSpace = kRec601_SkYUVColorSpace;
+
+    const uint32_t genID = 12345678;
+
+    SkCachedData* data = SkYUVPlanesCache::FindAndRef(genID, &yuvInfo, &cache);
+    REPORTER_ASSERT(reporter, NULL == data);
+
+    size_t size = 256;
+    data = cache.newCachedData(size);
+    memset(data->writable_data(), 0xff, size);
+
+    SkYUVPlanesCache::Add(genID, data, &yuvInfo, &cache);
+    check_data(reporter, data, 2, kInCache, kLocked);
+
+    data->unref();
+    check_data(reporter, data, 1, kInCache, kUnlocked);
+
+    SkYUVPlanesCache::Info yuvInfoRead;
+    data = SkYUVPlanesCache::FindAndRef(genID, &yuvInfoRead, &cache);
+
+    REPORTER_ASSERT(reporter, data);
+    REPORTER_ASSERT(reporter, data->size() == size);
+    for (int i = 0; i < 3; ++i) {
+        REPORTER_ASSERT(reporter, yuvInfo.fSize[i].fWidth == yuvInfoRead.fSize[i].fWidth);
+        REPORTER_ASSERT(reporter, yuvInfo.fSize[i].fHeight == yuvInfoRead.fSize[i].fHeight);
+        REPORTER_ASSERT(reporter, yuvInfo.fSizeInMemory[i] == yuvInfoRead.fSizeInMemory[i]);
+        REPORTER_ASSERT(reporter, yuvInfo.fRowBytes[i] == yuvInfoRead.fRowBytes[i]);
+    }
+    REPORTER_ASSERT(reporter, yuvInfo.fColorSpace == yuvInfoRead.fColorSpace);
+
+    check_data(reporter, data, 2, kInCache, kLocked);
+
+    cache.purgeAll();
+    check_data(reporter, data, 1, kNotInCache, kLocked);
+    data->unref();
+}