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/*
* Copyright (c) 2013, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "core/frame/ImageBitmap.h"
#include "SkPixelRef.h" // FIXME: qualify this skia header file.
#include "bindings/core/v8/UnionTypesCore.h"
#include "core/dom/Document.h"
#include "core/fetch/ImageResource.h"
#include "core/fetch/MemoryCache.h"
#include "core/fetch/MockImageResourceClient.h"
#include "core/html/HTMLCanvasElement.h"
#include "core/html/HTMLImageElement.h"
#include "core/html/HTMLVideoElement.h"
#include "platform/graphics/StaticBitmapImage.h"
#include "platform/heap/Handle.h"
#include "platform/network/ResourceRequest.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "wtf/OwnPtr.h"
namespace blink {
class ImageBitmapTest : public ::testing::Test {
protected:
virtual void SetUp()
{
RefPtr<SkSurface> surface = adoptRef(SkSurface::NewRasterN32Premul(10, 10));
surface->getCanvas()->clear(0xFFFFFFFF);
m_image = adoptRef(surface->newImageSnapshot());
RefPtr<SkSurface> surface2 = adoptRef(SkSurface::NewRasterN32Premul(5, 5));
surface2->getCanvas()->clear(0xAAAAAAAA);
m_image2 = adoptRef(surface2->newImageSnapshot());
// Save the global memory cache to restore it upon teardown.
m_globalMemoryCache = replaceMemoryCacheForTesting(MemoryCache::create());
}
virtual void TearDown()
{
// Garbage collection is required prior to switching out the
// test's memory cache; image resources are released, evicting
// them from the cache.
Heap::collectGarbage(BlinkGC::NoHeapPointersOnStack, BlinkGC::GCWithSweep, BlinkGC::ForcedGC);
replaceMemoryCacheForTesting(m_globalMemoryCache.release());
}
RefPtr<SkImage> m_image, m_image2;
Persistent<MemoryCache> m_globalMemoryCache;
};
TEST_F(ImageBitmapTest, ImageResourceConsistency)
{
const ImageBitmapOptions defaultOptions;
RefPtrWillBeRawPtr<HTMLImageElement> imageElement = HTMLImageElement::create(*Document::create().get());
RefPtrWillBeRawPtr<ImageResource> image = ImageResource::create(StaticBitmapImage::create(m_image).get());
imageElement->setImageResource(image.get());
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapNoCrop = ImageBitmap::create(imageElement.get(),
IntRect(0, 0, m_image->width(), m_image->height()),
&(imageElement->document()), defaultOptions);
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapInteriorCrop = ImageBitmap::create(imageElement.get(),
IntRect(m_image->width() / 2, m_image->height() / 2, m_image->width() / 2, m_image->height() / 2),
&(imageElement->document()), defaultOptions);
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapExteriorCrop = ImageBitmap::create(imageElement.get(),
IntRect(-m_image->width() / 2, -m_image->height() / 2, m_image->width(), m_image->height()),
&(imageElement->document()), defaultOptions);
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapOutsideCrop = ImageBitmap::create(imageElement.get(),
IntRect(-m_image->width(), -m_image->height(), m_image->width(), m_image->height()),
&(imageElement->document()), defaultOptions);
ASSERT_EQ(imageBitmapNoCrop->bitmapImage()->imageForCurrentFrame(), imageElement->cachedImage()->getImage()->imageForCurrentFrame());
ASSERT_NE(imageBitmapInteriorCrop->bitmapImage()->imageForCurrentFrame(), imageElement->cachedImage()->getImage()->imageForCurrentFrame());
ASSERT_NE(imageBitmapExteriorCrop->bitmapImage()->imageForCurrentFrame(), imageElement->cachedImage()->getImage()->imageForCurrentFrame());
StaticBitmapImage* emptyImage = imageBitmapOutsideCrop->bitmapImage();
ASSERT_NE(emptyImage->imageForCurrentFrame(), imageElement->cachedImage()->getImage()->imageForCurrentFrame());
}
// Verifies that ImageBitmaps constructed from HTMLImageElements hold a reference to the original Image if the HTMLImageElement src is changed.
TEST_F(ImageBitmapTest, ImageBitmapSourceChanged)
{
RefPtrWillBeRawPtr<HTMLImageElement> image = HTMLImageElement::create(*Document::create().get());
RefPtrWillBeRawPtr<ImageResource> originalImageResource = ImageResource::create(
StaticBitmapImage::create(m_image).get());
image->setImageResource(originalImageResource.get());
const ImageBitmapOptions defaultOptions;
RefPtrWillBeRawPtr<ImageBitmap> imageBitmap = ImageBitmap::create(image.get(),
IntRect(0, 0, m_image->width(), m_image->height()),
&(image->document()), defaultOptions);
ASSERT_EQ(imageBitmap->bitmapImage()->imageForCurrentFrame(), originalImageResource->getImage()->imageForCurrentFrame());
RefPtrWillBeRawPtr<ImageResource> newImageResource = ImageResource::create(
StaticBitmapImage::create(m_image2).get());
image->setImageResource(newImageResource.get());
// The ImageBitmap should contain the same data as the original cached image
{
ASSERT_EQ(imageBitmap->bitmapImage()->imageForCurrentFrame(), originalImageResource->getImage()->imageForCurrentFrame());
SkImage* image1 = imageBitmap->bitmapImage()->imageForCurrentFrame().get();
ASSERT_NE(image1, nullptr);
SkImage* image2 = originalImageResource->getImage()->imageForCurrentFrame().get();
ASSERT_NE(image2, nullptr);
ASSERT_EQ(image1, image2);
}
{
ASSERT_NE(imageBitmap->bitmapImage()->imageForCurrentFrame(), newImageResource->getImage()->imageForCurrentFrame());
SkImage* image1 = imageBitmap->bitmapImage()->imageForCurrentFrame().get();
ASSERT_NE(image1, nullptr);
SkImage* image2 = newImageResource->getImage()->imageForCurrentFrame().get();
ASSERT_NE(image2, nullptr);
ASSERT_NE(image1, image2);
}
}
} // namespace blink
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