1/*
2 * Copyright (c) 2013, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
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9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
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12 * in the documentation and/or other materials provided with the
13 * distribution.
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15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "core/page/ImageBitmap.h"
33
34#include "core/dom/Document.h"
35#include "core/html/HTMLImageElement.h"
36#include "core/loader/cache/ImageResource.h"
37#include "core/platform/graphics/BitmapImage.h"
38#include "core/platform/graphics/skia/NativeImageSkia.h"
39
40#include <gtest/gtest.h>
41
42namespace WebCore {
43
44class ImageBitmapTest : public ::testing::Test {
45};
46
47// Verifies that the cached image held by an ImageBitmap is the same as the
48// one held by the HTMLImageElement.
49TEST_F(ImageBitmapTest, ImageResourceConsistency)
50{
51    SkBitmap bitmap;
52    bitmap.setConfig(SkBitmap::kARGB_8888_Config, 10, 10);
53    bitmap.allocPixels();
54    bitmap.eraseColor(0xFFFFFFFF);
55
56    RefPtr<HTMLImageElement> imageElement = HTMLImageElement::create(Document::create().get());
57    imageElement->setImageResource(new ImageResource(BitmapImage::create(NativeImageSkia::create(bitmap)).get()));
58
59    RefPtr<ImageBitmap> imageBitmapNoCrop = ImageBitmap::create(imageElement.get(), IntRect(0, 0, bitmap.width(), bitmap.height()));
60    RefPtr<ImageBitmap> imageBitmapInteriorCrop = ImageBitmap::create(imageElement.get(), IntRect(bitmap.width() / 2, bitmap.height() / 2, bitmap.width() / 2, bitmap.height() / 2));
61    RefPtr<ImageBitmap> imageBitmapExteriorCrop = ImageBitmap::create(imageElement.get(), IntRect(-bitmap.width() / 2, -bitmap.height() / 2, bitmap.width(), bitmap.height()));
62    RefPtr<ImageBitmap> imageBitmapOutsideCrop = ImageBitmap::create(imageElement.get(), IntRect(-bitmap.width(), -bitmap.height(), bitmap.width(), bitmap.height()));
63
64    ASSERT_EQ(imageBitmapNoCrop->bitmapImage().get(), imageElement->cachedImage()->image());
65    ASSERT_EQ(imageBitmapInteriorCrop->bitmapImage().get(), imageElement->cachedImage()->image());
66    ASSERT_EQ(imageBitmapExteriorCrop->bitmapImage().get(), imageElement->cachedImage()->image());
67
68    RefPtr<Image> emptyImage = imageBitmapOutsideCrop->bitmapImage();
69    ASSERT_NE(emptyImage.get(), imageElement->cachedImage()->image());
70}
71
72} // namespace
73