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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 "config.h"
#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/fetch/ResourcePtr.h"
#include "core/html/HTMLCanvasElement.h"
#include "core/html/HTMLImageElement.h"
#include "core/html/HTMLVideoElement.h"
#include "core/html/canvas/CanvasRenderingContext2D.h"
#include "core/html/canvas/WebGLRenderingContext.h"
#include "platform/graphics/BitmapImage.h"
#include "platform/graphics/skia/NativeImageSkia.h"
#include "platform/heap/Handle.h"
#include "platform/network/ResourceRequest.h"
#include "wtf/OwnPtr.h"
#include <gtest/gtest.h>
namespace blink {
class ImageBitmapTest : public ::testing::Test {
protected:
virtual void SetUp()
{
m_bitmap.allocN32Pixels(10, 10);
m_bitmap.eraseColor(0xFFFFFFFF);
m_bitmap2.allocN32Pixels(5, 5);
m_bitmap2.eraseColor(0xAAAAAAAA);
// 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(ThreadState::NoHeapPointersOnStack);
replaceMemoryCacheForTesting(m_globalMemoryCache.release());
}
SkBitmap m_bitmap, m_bitmap2;
OwnPtrWillBePersistent<MemoryCache> m_globalMemoryCache;
};
// Verifies that the image resource held by an ImageBitmap is the same as the
// one held by the HTMLImageElement.
TEST_F(ImageBitmapTest, ImageResourceConsistency)
{
RefPtrWillBeRawPtr<HTMLImageElement> imageElement = HTMLImageElement::create(*Document::create().get());
imageElement->setImageResource(new ImageResource(BitmapImage::create(NativeImageSkia::create(m_bitmap)).get()));
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapNoCrop = ImageBitmap::create(imageElement.get(), IntRect(0, 0, m_bitmap.width(), m_bitmap.height()));
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapInteriorCrop = ImageBitmap::create(imageElement.get(), IntRect(m_bitmap.width() / 2, m_bitmap.height() / 2, m_bitmap.width() / 2, m_bitmap.height() / 2));
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapExteriorCrop = ImageBitmap::create(imageElement.get(), IntRect(-m_bitmap.width() / 2, -m_bitmap.height() / 2, m_bitmap.width(), m_bitmap.height()));
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapOutsideCrop = ImageBitmap::create(imageElement.get(), IntRect(-m_bitmap.width(), -m_bitmap.height(), m_bitmap.width(), m_bitmap.height()));
ASSERT_EQ(imageBitmapNoCrop->bitmapImage().get(), imageElement->cachedImage()->image());
ASSERT_EQ(imageBitmapInteriorCrop->bitmapImage().get(), imageElement->cachedImage()->image());
ASSERT_EQ(imageBitmapExteriorCrop->bitmapImage().get(), imageElement->cachedImage()->image());
RefPtr<Image> emptyImage = imageBitmapOutsideCrop->bitmapImage();
ASSERT_NE(emptyImage.get(), imageElement->cachedImage()->image());
}
// Verifies that HTMLImageElements are given an elevated CacheLiveResourcePriority when used to construct an ImageBitmap.
// ImageBitmaps that have crop rects outside of the bounds of the HTMLImageElement do not have elevated CacheLiveResourcePriority.
TEST_F(ImageBitmapTest, ImageBitmapLiveResourcePriority)
{
RefPtrWillBePersistent<HTMLImageElement> imageNoCrop = HTMLImageElement::create(*Document::create().get());
ResourcePtr<ImageResource> cachedImageNoCrop = new ImageResource(ResourceRequest("http://foo.com/1"), BitmapImage::create(NativeImageSkia::create(m_bitmap)).get());
imageNoCrop->setImageResource(cachedImageNoCrop.get());
RefPtrWillBePersistent<HTMLImageElement> imageInteriorCrop = HTMLImageElement::create(*Document::create().get());
ResourcePtr<ImageResource> cachedImageInteriorCrop = new ImageResource(ResourceRequest("http://foo.com/2"), BitmapImage::create(NativeImageSkia::create(m_bitmap)).get());
imageInteriorCrop->setImageResource(cachedImageInteriorCrop.get());
RefPtrWillBePersistent<HTMLImageElement> imageExteriorCrop = HTMLImageElement::create(*Document::create().get());
ResourcePtr<ImageResource> cachedImageExteriorCrop = new ImageResource(ResourceRequest("http://foo.com/3"), BitmapImage::create(NativeImageSkia::create(m_bitmap)).get());
imageExteriorCrop->setImageResource(cachedImageExteriorCrop.get());
RefPtrWillBePersistent<HTMLImageElement> imageOutsideCrop = HTMLImageElement::create(*Document::create().get());
ResourcePtr<ImageResource> cachedImageOutsideCrop = new ImageResource(ResourceRequest("http://foo.com/4"), BitmapImage::create(NativeImageSkia::create(m_bitmap)).get());
imageOutsideCrop->setImageResource(cachedImageOutsideCrop.get());
MockImageResourceClient mockClient1, mockClient2, mockClient3, mockClient4;
cachedImageNoCrop->addClient(&mockClient1);
cachedImageInteriorCrop->addClient(&mockClient2);
cachedImageExteriorCrop->addClient(&mockClient3);
cachedImageOutsideCrop->addClient(&mockClient4);
memoryCache()->add(cachedImageNoCrop.get());
memoryCache()->add(cachedImageInteriorCrop.get());
memoryCache()->add(cachedImageExteriorCrop.get());
memoryCache()->add(cachedImageOutsideCrop.get());
memoryCache()->updateDecodedResource(cachedImageNoCrop.get(), UpdateForPropertyChange);
memoryCache()->updateDecodedResource(cachedImageInteriorCrop.get(), UpdateForPropertyChange);
memoryCache()->updateDecodedResource(cachedImageExteriorCrop.get(), UpdateForPropertyChange);
memoryCache()->updateDecodedResource(cachedImageOutsideCrop.get(), UpdateForPropertyChange);
// HTMLImageElements should default to CacheLiveResourcePriorityLow.
ASSERT_EQ(memoryCache()->priority(imageNoCrop->cachedImage()), MemoryCacheLiveResourcePriorityLow);
ASSERT_EQ(memoryCache()->priority(imageInteriorCrop->cachedImage()), MemoryCacheLiveResourcePriorityLow);
ASSERT_EQ(memoryCache()->priority(imageExteriorCrop->cachedImage()), MemoryCacheLiveResourcePriorityLow);
ASSERT_EQ(memoryCache()->priority(imageOutsideCrop->cachedImage()), MemoryCacheLiveResourcePriorityLow);
RefPtrWillBePersistent<ImageBitmap> imageBitmapInteriorCrop = ImageBitmap::create(imageInteriorCrop.get(), IntRect(m_bitmap.width() / 2, m_bitmap.height() / 2, m_bitmap.width(), m_bitmap.height()));
{
RefPtrWillBePersistent<ImageBitmap> imageBitmapNoCrop = ImageBitmap::create(imageNoCrop.get(), IntRect(0, 0, m_bitmap.width(), m_bitmap.height()));
RefPtrWillBePersistent<ImageBitmap> imageBitmapInteriorCrop2 = ImageBitmap::create(imageInteriorCrop.get(), IntRect(m_bitmap.width() / 2, m_bitmap.height() / 2, m_bitmap.width(), m_bitmap.height()));
RefPtrWillBePersistent<ImageBitmap> imageBitmapExteriorCrop = ImageBitmap::create(imageExteriorCrop.get(), IntRect(-m_bitmap.width() / 2, -m_bitmap.height() / 2, m_bitmap.width(), m_bitmap.height()));
RefPtrWillBePersistent<ImageBitmap> imageBitmapOutsideCrop = ImageBitmap::create(imageOutsideCrop.get(), IntRect(-m_bitmap.width(), -m_bitmap.height(), m_bitmap.width(), m_bitmap.height()));
// Images that are referenced by ImageBitmaps have CacheLiveResourcePriorityHigh.
ASSERT_EQ(memoryCache()->priority(imageNoCrop->cachedImage()), MemoryCacheLiveResourcePriorityHigh);
ASSERT_EQ(memoryCache()->priority(imageInteriorCrop->cachedImage()), MemoryCacheLiveResourcePriorityHigh);
ASSERT_EQ(memoryCache()->priority(imageExteriorCrop->cachedImage()), MemoryCacheLiveResourcePriorityHigh);
// ImageBitmaps that do not contain any of the source image do not elevate CacheLiveResourcePriority.
ASSERT_EQ(memoryCache()->priority(imageOutsideCrop->cachedImage()), MemoryCacheLiveResourcePriorityLow);
}
// Force a garbage collection to sweep out the local ImageBitmaps.
Heap::collectGarbage(ThreadState::NoHeapPointersOnStack);
// CacheLiveResourcePriroity should return to CacheLiveResourcePriorityLow when no ImageBitmaps reference the image.
ASSERT_EQ(memoryCache()->priority(imageNoCrop->cachedImage()), MemoryCacheLiveResourcePriorityLow);
ASSERT_EQ(memoryCache()->priority(imageExteriorCrop->cachedImage()), MemoryCacheLiveResourcePriorityLow);
ASSERT_EQ(memoryCache()->priority(imageOutsideCrop->cachedImage()), MemoryCacheLiveResourcePriorityLow);
// There is still an ImageBitmap that references this image.
ASSERT_EQ(memoryCache()->priority(imageInteriorCrop->cachedImage()), MemoryCacheLiveResourcePriorityHigh);
imageBitmapInteriorCrop = nullptr;
cachedImageNoCrop->removeClient(&mockClient1);
cachedImageInteriorCrop->removeClient(&mockClient2);
cachedImageExteriorCrop->removeClient(&mockClient3);
cachedImageOutsideCrop->removeClient(&mockClient4);
}
// 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());
ResourcePtr<ImageResource> originalImageResource = new ImageResource(BitmapImage::create(NativeImageSkia::create(m_bitmap)).get());
image->setImageResource(originalImageResource.get());
RefPtrWillBeRawPtr<ImageBitmap> imageBitmap = ImageBitmap::create(image.get(), IntRect(0, 0, m_bitmap.width(), m_bitmap.height()));
ASSERT_EQ(imageBitmap->bitmapImage().get(), originalImageResource->image());
ResourcePtr<ImageResource> newImageResource = new ImageResource(BitmapImage::create(NativeImageSkia::create(m_bitmap2)).get());
image->setImageResource(newImageResource.get());
// The ImageBitmap should contain the same data as the original cached image but should no longer hold a reference.
ASSERT_NE(imageBitmap->bitmapImage().get(), originalImageResource->image());
ASSERT_EQ(imageBitmap->bitmapImage()->nativeImageForCurrentFrame()->bitmap().pixelRef()->pixels(),
originalImageResource->image()->nativeImageForCurrentFrame()->bitmap().pixelRef()->pixels());
ASSERT_NE(imageBitmap->bitmapImage().get(), newImageResource->image());
ASSERT_NE(imageBitmap->bitmapImage()->nativeImageForCurrentFrame()->bitmap().pixelRef()->pixels(),
newImageResource->image()->nativeImageForCurrentFrame()->bitmap().pixelRef()->pixels());
}
// Verifies that ImageBitmaps constructed from ImageBitmaps hold onto their own Image.
TEST_F(ImageBitmapTest, ImageResourceLifetime)
{
RefPtrWillBeRawPtr<HTMLCanvasElement> canvasElement = HTMLCanvasElement::create(*Document::create().get());
canvasElement->setHeight(40);
canvasElement->setWidth(40);
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapDerived = nullptr;
{
RefPtrWillBeRawPtr<ImageBitmap> imageBitmapFromCanvas = ImageBitmap::create(canvasElement.get(), IntRect(0, 0, canvasElement->width(), canvasElement->height()));
imageBitmapDerived = ImageBitmap::create(imageBitmapFromCanvas.get(), IntRect(0, 0, 20, 20));
}
CanvasContextCreationAttributes attributes;
CanvasRenderingContext2DOrWebGLRenderingContext context;
canvasElement->getContext("2d", attributes, context);
TrackExceptionState exceptionState;
CanvasImageSourceUnion imageSource;
imageSource.setImageBitmap(imageBitmapDerived);
context.getAsCanvasRenderingContext2D()->drawImage(imageSource, 0, 0, exceptionState);
}
} // namespace
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