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/*
* 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 "Test.h"
#include "SkBitmapCache.h"
#include "SkCanvas.h"
#include "SkDiscardableMemoryPool.h"
#include "SkGraphics.h"
#include "SkResourceCache.h"
static const int kCanvasSize = 1;
static const int kBitmapSize = 16;
static const int kScale = 8;
static bool is_in_scaled_image_cache(const SkBitmap& orig,
SkScalar xScale,
SkScalar yScale) {
SkBitmap scaled;
float roundedImageWidth = SkScalarRoundToScalar(orig.width() * xScale);
float roundedImageHeight = SkScalarRoundToScalar(orig.height() * xScale);
return SkBitmapCache::Find(orig, roundedImageWidth, roundedImageHeight, &scaled);
}
// Draw a scaled bitmap, then return true iff it has been cached.
static bool test_scaled_image_cache_useage() {
SkAutoTUnref<SkCanvas> canvas(
SkCanvas::NewRasterN32(kCanvasSize, kCanvasSize));
SkBitmap bitmap;
bitmap.allocN32Pixels(kBitmapSize, kBitmapSize);
bitmap.eraseColor(0xFFFFFFFF);
SkScalar scale = SkIntToScalar(kScale);
SkScalar scaledSize = SkIntToScalar(kBitmapSize) * scale;
canvas->clipRect(SkRect::MakeLTRB(0, 0, scaledSize, scaledSize));
SkPaint paint;
paint.setFilterLevel(SkPaint::kHigh_FilterLevel);
canvas->drawBitmapRect(bitmap,
SkRect::MakeLTRB(0, 0, scaledSize, scaledSize),
&paint);
return is_in_scaled_image_cache(bitmap, scale, scale);
}
// http://crbug.com/389439
DEF_TEST(ResourceCache_SingleAllocationByteLimit, reporter) {
size_t originalByteLimit = SkGraphics::GetResourceCacheTotalByteLimit();
size_t originalAllocationLimit =
SkGraphics::GetResourceCacheSingleAllocationByteLimit();
size_t size = kBitmapSize * kScale * kBitmapSize * kScale
* SkColorTypeBytesPerPixel(kN32_SkColorType);
SkGraphics::SetResourceCacheTotalByteLimit(0); // clear cache
SkGraphics::SetResourceCacheTotalByteLimit(2 * size);
SkGraphics::SetResourceCacheSingleAllocationByteLimit(0); // No limit
REPORTER_ASSERT(reporter, test_scaled_image_cache_useage());
SkGraphics::SetResourceCacheTotalByteLimit(0); // clear cache
SkGraphics::SetResourceCacheTotalByteLimit(2 * size);
SkGraphics::SetResourceCacheSingleAllocationByteLimit(size * 2); // big enough
REPORTER_ASSERT(reporter, test_scaled_image_cache_useage());
SkGraphics::SetResourceCacheTotalByteLimit(0); // clear cache
SkGraphics::SetResourceCacheTotalByteLimit(2 * size);
SkGraphics::SetResourceCacheSingleAllocationByteLimit(size / 2); // too small
REPORTER_ASSERT(reporter, !test_scaled_image_cache_useage());
SkGraphics::SetResourceCacheSingleAllocationByteLimit(originalAllocationLimit);
SkGraphics::SetResourceCacheTotalByteLimit(originalByteLimit);
}
////////////////////////////////////////////////////////////////////////////////////////
static void make_bitmap(SkBitmap* bitmap, const SkImageInfo& info, SkBitmap::Allocator* allocator) {
if (allocator) {
bitmap->setInfo(info);
allocator->allocPixelRef(bitmap, 0);
} else {
bitmap->allocPixels(info);
}
}
// http://skbug.com/2894
DEF_TEST(BitmapCache_add_rect, reporter) {
SkResourceCache::DiscardableFactory factory = SkResourceCache::GetDiscardableFactory();
SkBitmap::Allocator* allocator = SkBitmapCache::GetAllocator();
SkAutoTDelete<SkResourceCache> cache;
if (factory) {
cache.reset(SkNEW_ARGS(SkResourceCache, (factory)));
} else {
const size_t byteLimit = 100 * 1024;
cache.reset(SkNEW_ARGS(SkResourceCache, (byteLimit)));
}
SkBitmap cachedBitmap;
make_bitmap(&cachedBitmap, SkImageInfo::MakeN32Premul(5, 5), allocator);
cachedBitmap.setImmutable();
SkBitmap bm;
SkIRect rect = SkIRect::MakeWH(5, 5);
// Wrong subset size
REPORTER_ASSERT(reporter, !SkBitmapCache::Add(cachedBitmap.getGenerationID(), SkIRect::MakeWH(4, 6), cachedBitmap, cache));
REPORTER_ASSERT(reporter, !SkBitmapCache::Find(cachedBitmap.getGenerationID(), rect, &bm, cache));
// Wrong offset value
REPORTER_ASSERT(reporter, !SkBitmapCache::Add(cachedBitmap.getGenerationID(), SkIRect::MakeXYWH(-1, 0, 5, 5), cachedBitmap, cache));
REPORTER_ASSERT(reporter, !SkBitmapCache::Find(cachedBitmap.getGenerationID(), rect, &bm, cache));
// Should not be in the cache
REPORTER_ASSERT(reporter, !SkBitmapCache::Find(cachedBitmap.getGenerationID(), rect, &bm, cache));
REPORTER_ASSERT(reporter, SkBitmapCache::Add(cachedBitmap.getGenerationID(), rect, cachedBitmap, cache));
// Should be in the cache, we just added it
REPORTER_ASSERT(reporter, SkBitmapCache::Find(cachedBitmap.getGenerationID(), rect, &bm, cache));
}
#include "SkMipMap.h"
enum LockedState {
kNotLocked,
kLocked,
};
enum CachedState {
kNotInCache,
kInCache,
};
static void check_data(skiatest::Reporter* reporter, const 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));
}
static void test_mipmapcache(skiatest::Reporter* reporter, SkResourceCache* cache) {
cache->purgeAll();
SkBitmap src;
src.allocN32Pixels(5, 5);
src.setImmutable();
const SkMipMap* mipmap = SkMipMapCache::FindAndRef(src, cache);
REPORTER_ASSERT(reporter, NULL == mipmap);
mipmap = SkMipMapCache::AddAndRef(src, cache);
REPORTER_ASSERT(reporter, mipmap);
check_data(reporter, mipmap, 2, kInCache, kLocked);
mipmap->unref();
// tricky, since technically after this I'm no longer an owner, but since the cache is
// local, I know it won't get purged behind my back
check_data(reporter, mipmap, 1, kInCache, kNotLocked);
// find us again
mipmap = SkMipMapCache::FindAndRef(src, cache);
check_data(reporter, mipmap, 2, kInCache, kLocked);
cache->purgeAll();
check_data(reporter, mipmap, 1, kNotInCache, kLocked);
mipmap->unref();
}
DEF_TEST(BitmapCache_discarded_bitmap, reporter) {
SkResourceCache::DiscardableFactory factory = SkResourceCache::GetDiscardableFactory();
SkBitmap::Allocator* allocator = SkBitmapCache::GetAllocator();
SkAutoTDelete<SkResourceCache> cache;
if (factory) {
cache.reset(SkNEW_ARGS(SkResourceCache, (factory)));
} else {
const size_t byteLimit = 100 * 1024;
cache.reset(SkNEW_ARGS(SkResourceCache, (byteLimit)));
}
SkBitmap cachedBitmap;
make_bitmap(&cachedBitmap, SkImageInfo::MakeN32Premul(5, 5), allocator);
cachedBitmap.setImmutable();
cachedBitmap.unlockPixels();
SkBitmap bm;
SkIRect rect = SkIRect::MakeWH(5, 5);
// Add a bitmap to the cache.
REPORTER_ASSERT(reporter, SkBitmapCache::Add(cachedBitmap.getGenerationID(), rect, cachedBitmap, cache));
REPORTER_ASSERT(reporter, SkBitmapCache::Find(cachedBitmap.getGenerationID(), rect, &bm, cache));
// Finding more than once works fine.
REPORTER_ASSERT(reporter, SkBitmapCache::Find(cachedBitmap.getGenerationID(), rect, &bm, cache));
bm.unlockPixels();
// Drop the pixels in the bitmap.
if (factory) {
REPORTER_ASSERT(reporter, SkGetGlobalDiscardableMemoryPool()->getRAMUsed() > 0);
SkGetGlobalDiscardableMemoryPool()->dumpPool();
REPORTER_ASSERT(reporter, SkGetGlobalDiscardableMemoryPool()->getRAMUsed() == 0);
// The bitmap is not in the cache since it has been dropped.
REPORTER_ASSERT(reporter, !SkBitmapCache::Find(cachedBitmap.getGenerationID(), rect, &bm, cache));
}
make_bitmap(&cachedBitmap, SkImageInfo::MakeN32Premul(5, 5), allocator);
cachedBitmap.setImmutable();
cachedBitmap.unlockPixels();
// We can add the bitmap back to the cache and find it again.
REPORTER_ASSERT(reporter, SkBitmapCache::Add(cachedBitmap.getGenerationID(), rect, cachedBitmap, cache));
REPORTER_ASSERT(reporter, SkBitmapCache::Find(cachedBitmap.getGenerationID(), rect, &bm, cache));
test_mipmapcache(reporter, cache);
}
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