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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifdef SK_DEBUG
#include "SkBitmap.h"
#include "SkBitmapFactory.h"
#include "SkCanvas.h"
#include "SkColor.h"
#include "SkData.h"
#include "SkImageDecoder.h"
#include "SkImageEncoder.h"
#include "SkLazyPixelRef.h"
#include "SkLruImageCache.h"
#include "SkPaint.h"
#include "SkPurgeableImageCache.h"
#include "SkStream.h"
#include "SkTemplates.h"
#include "Test.h"
static SkBitmap* create_bitmap() {
SkBitmap* bm = SkNEW(SkBitmap);
// Use a large bitmap.
const int W = 1000, H = 1000;
bm->setConfig(SkBitmap::kARGB_8888_Config, W, H);
bm->allocPixels();
bm->eraseColor(SK_ColorBLACK);
SkCanvas canvas(*bm);
SkPaint paint;
paint.setColor(SK_ColorBLUE);
canvas.drawRectCoords(0, 0, SkIntToScalar(W/2), SkIntToScalar(H/2), paint);
return bm;
}
static SkData* create_data_from_bitmap(const SkBitmap& bm) {
SkDynamicMemoryWStream stream;
if (SkImageEncoder::EncodeStream(&stream, bm, SkImageEncoder::kPNG_Type, 100)) {
return stream.copyToData();
}
return NULL;
}
static void assert_bounds_equal(skiatest::Reporter* reporter, const SkBitmap& bm1,
const SkBitmap& bm2) {
REPORTER_ASSERT(reporter, bm1.width() == bm2.width());
REPORTER_ASSERT(reporter, bm1.height() == bm2.height());
}
static void test_cache(skiatest::Reporter* reporter, SkImageCache* cache) {
// Test the cache directly:
cache->purgeAllUnpinnedCaches();
intptr_t ID = SkImageCache::UNINITIALIZED_ID;
const size_t size = 1000;
char buffer[size];
sk_bzero((void*) buffer, size);
void* memory = cache->allocAndPinCache(size, &ID);
if (memory != NULL) {
memcpy(memory, (void*)buffer, size);
REPORTER_ASSERT(reporter, cache->getMemoryStatus(ID) == SkImageCache::kPinned_MemoryStatus);
cache->releaseCache(ID);
REPORTER_ASSERT(reporter, cache->getMemoryStatus(ID) != SkImageCache::kPinned_MemoryStatus);
SkImageCache::DataStatus dataStatus;
memory = cache->pinCache(ID, &dataStatus);
if (memory != NULL) {
REPORTER_ASSERT(reporter, cache->getMemoryStatus(ID)
== SkImageCache::kPinned_MemoryStatus);
if (SkImageCache::kRetained_DataStatus == dataStatus) {
REPORTER_ASSERT(reporter, !memcmp(memory, (void*) buffer, size));
}
cache->releaseCache(ID);
REPORTER_ASSERT(reporter, cache->getMemoryStatus(ID)
!= SkImageCache::kPinned_MemoryStatus);
cache->purgeAllUnpinnedCaches();
REPORTER_ASSERT(reporter, cache->getMemoryStatus(ID)
!= SkImageCache::kPinned_MemoryStatus);
memory = cache->pinCache(ID, &dataStatus);
if (memory != NULL) {
// The memory block may or may not have survived the purging (at the
// memory manager's whim) so we cannot check dataStatus here.
cache->releaseCache(ID);
REPORTER_ASSERT(reporter, cache->getMemoryStatus(ID)
!= SkImageCache::kPinned_MemoryStatus);
cache->throwAwayCache(ID);
REPORTER_ASSERT(reporter, cache->getMemoryStatus(ID)
== SkImageCache::kFreed_MemoryStatus);
} else {
REPORTER_ASSERT(reporter, cache->getMemoryStatus(ID)
== SkImageCache::kFreed_MemoryStatus);
}
}
}
}
static void test_factory(skiatest::Reporter* reporter, SkImageCache* cache, SkData* encodedData,
const SkBitmap& origBitmap) {
SkBitmapFactory factory(&SkImageDecoder::DecodeMemoryToTarget);
factory.setImageCache(cache);
SkAutoTDelete<SkBitmap> bitmapFromFactory(SkNEW(SkBitmap));
bool success = factory.installPixelRef(encodedData, bitmapFromFactory.get());
// This assumes that if the encoder worked, the decoder should also work, so the above call
// should not fail.
REPORTER_ASSERT(reporter, success);
assert_bounds_equal(reporter, origBitmap, *bitmapFromFactory.get());
SkPixelRef* pixelRef = bitmapFromFactory->pixelRef();
REPORTER_ASSERT(reporter, pixelRef != NULL);
if (NULL == cache) {
// This assumes that installPixelRef called lockPixels.
REPORTER_ASSERT(reporter, bitmapFromFactory->readyToDraw());
} else {
// Lazy decoding
REPORTER_ASSERT(reporter, !bitmapFromFactory->readyToDraw());
SkLazyPixelRef* lazyRef = static_cast<SkLazyPixelRef*>(pixelRef);
intptr_t cacheID = lazyRef->getCacheId();
REPORTER_ASSERT(reporter, cache->getMemoryStatus(cacheID)
!= SkImageCache::kPinned_MemoryStatus);
{
SkAutoLockPixels alp(*bitmapFromFactory.get());
REPORTER_ASSERT(reporter, bitmapFromFactory->readyToDraw());
cacheID = lazyRef->getCacheId();
REPORTER_ASSERT(reporter, cache->getMemoryStatus(cacheID)
== SkImageCache::kPinned_MemoryStatus);
}
REPORTER_ASSERT(reporter, !bitmapFromFactory->readyToDraw());
REPORTER_ASSERT(reporter, cache->getMemoryStatus(cacheID)
!= SkImageCache::kPinned_MemoryStatus);
bitmapFromFactory.free();
REPORTER_ASSERT(reporter, cache->getMemoryStatus(cacheID)
== SkImageCache::kFreed_MemoryStatus);
}
}
class ImageCacheHolder : public SkNoncopyable {
public:
~ImageCacheHolder() {
fCaches.safeUnrefAll();
}
void addImageCache(SkImageCache* cache) {
SkSafeRef(cache);
*fCaches.append() = cache;
}
int count() const { return fCaches.count(); }
SkImageCache* getAt(int i) {
if (i < 0 || i > fCaches.count()) {
return NULL;
}
return fCaches.getAt(i);
}
private:
SkTDArray<SkImageCache*> fCaches;
};
static void TestBitmapFactory(skiatest::Reporter* reporter) {
SkAutoTDelete<SkBitmap> bitmap(create_bitmap());
SkASSERT(bitmap.get() != NULL);
SkAutoDataUnref encodedBitmap(create_data_from_bitmap(*bitmap.get()));
bool encodeSucceeded = encodedBitmap.get() != NULL;
SkASSERT(encodeSucceeded);
ImageCacheHolder cacheHolder;
SkAutoTUnref<SkLruImageCache> lruCache(SkNEW_ARGS(SkLruImageCache, (1024 * 1024)));
cacheHolder.addImageCache(lruCache);
cacheHolder.addImageCache(NULL);
SkImageCache* purgeableCache = SkPurgeableImageCache::Create();
if (purgeableCache != NULL) {
cacheHolder.addImageCache(purgeableCache);
purgeableCache->unref();
}
for (int i = 0; i < cacheHolder.count(); i++) {
SkImageCache* cache = cacheHolder.getAt(i);
if (cache != NULL) {
test_cache(reporter, cache);
}
if (encodeSucceeded) {
test_factory(reporter, cache, encodedBitmap, *bitmap.get());
}
}
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("BitmapFactory", TestBitmapFactoryClass, TestBitmapFactory)
#endif // SK_DEBUG
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