1/*
2 * Copyright (C) 2014 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "ViewSnapshotStore.h"
28
29#include <WebCore/CairoUtilities.h>
30
31namespace WebKit {
32using namespace WebCore;
33
34Ref<ViewSnapshot> ViewSnapshot::create(RefPtr<cairo_surface_t>&& surface)
35{
36 return adoptRef(*new ViewSnapshot(WTFMove(surface)));
37}
38
39ViewSnapshot::ViewSnapshot(RefPtr<cairo_surface_t>&& surface)
40 : m_surface(WTFMove(surface))
41{
42 if (hasImage())
43 ViewSnapshotStore::singleton().didAddImageToSnapshot(*this);
44}
45
46bool ViewSnapshot::hasImage() const
47{
48 return !!m_surface;
49}
50
51void ViewSnapshot::clearImage()
52{
53 if (!hasImage())
54 return;
55
56 ViewSnapshotStore::singleton().willRemoveImageFromSnapshot(*this);
57
58 m_surface = nullptr;
59}
60
61size_t ViewSnapshot::imageSizeInBytes() const
62{
63 if (!m_surface)
64 return 0;
65
66 cairo_surface_t* surface = m_surface.get();
67 int stride = cairo_image_surface_get_stride(surface);
68 int height = cairo_image_surface_get_width(surface);
69
70 return stride * height;
71}
72
73WebCore::IntSize ViewSnapshot::size() const
74{
75 if (!m_surface)
76 return { };
77
78 cairo_surface_t* surface = m_surface.get();
79 int width = cairo_image_surface_get_width(surface);
80 int height = cairo_image_surface_get_height(surface);
81
82 return { width, height };
83}
84
85} // namespace WebKit
86