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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkDiscardableMemory.h"
#include "SkScaledImageCache.h"
static void make_bm(SkBitmap* bm, int w, int h) {
bm->setConfig(SkBitmap::kARGB_8888_Config, w, h);
bm->allocPixels();
}
static const int COUNT = 10;
static const int DIM = 256;
static void test_cache(skiatest::Reporter* reporter, SkScaledImageCache& cache,
bool testPurge) {
SkScaledImageCache::ID* id;
SkBitmap bm[COUNT];
SkScalar scale = 2;
for (int i = 0; i < COUNT; ++i) {
SkBitmap tmp;
make_bm(&bm[i], DIM, DIM);
id = cache.findAndLock(bm[i], scale, scale, &tmp);
REPORTER_ASSERT(reporter, NULL == id);
make_bm(&tmp, DIM, DIM);
id = cache.addAndLock(bm[i], scale, scale, tmp);
REPORTER_ASSERT(reporter, NULL != id);
SkBitmap tmp2;
SkScaledImageCache::ID* id2 = cache.findAndLock(bm[i], scale, scale,
&tmp2);
REPORTER_ASSERT(reporter, id == id2);
REPORTER_ASSERT(reporter, tmp.pixelRef() == tmp2.pixelRef());
REPORTER_ASSERT(reporter, tmp.width() == tmp2.width());
REPORTER_ASSERT(reporter, tmp.height() == tmp2.height());
cache.unlock(id2);
cache.unlock(id);
}
if (testPurge) {
// stress test, should trigger purges
for (size_t i = 0; i < COUNT * 100; ++i) {
scale += 1;
SkBitmap tmp;
make_bm(&tmp, DIM, DIM);
id = cache.addAndLock(bm[0], scale, scale, tmp);
REPORTER_ASSERT(reporter, NULL != id);
cache.unlock(id);
}
}
cache.setByteLimit(0);
}
static void TestImageCache(skiatest::Reporter* reporter) {
{
static const size_t defLimit = DIM * DIM * 4 * COUNT + 1024; // 1K slop
SkScaledImageCache cache(defLimit);
test_cache(reporter, cache, true);
}
{
SkScaledImageCache cache(SkDiscardableMemory::Create);
test_cache(reporter, cache, false);
}
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("ImageCache", TestImageCacheClass, TestImageCache)
DEF_TEST(ImageCache_doubleAdd, r) {
// Adding the same key twice should be safe.
SkScaledImageCache cache(1024);
SkBitmap original;
original.setConfig(SkBitmap::kARGB_8888_Config, 40, 40);
original.allocPixels();
SkBitmap scaled;
scaled.setConfig(SkBitmap::kARGB_8888_Config, 20, 20);
scaled.allocPixels();
SkScaledImageCache::ID* id1 = cache.addAndLock(original, 0.5f, 0.5f, scaled);
SkScaledImageCache::ID* id2 = cache.addAndLock(original, 0.5f, 0.5f, scaled);
// We don't really care if id1 == id2 as long as unlocking both works.
cache.unlock(id1);
cache.unlock(id2);
}
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