1/*
2 * Copyright (C) 2010 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 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
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
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "VideoFrameChromiumImpl.h"
33
34#include "VideoFrameChromium.h"
35#include "WebVideoFrame.h"
36
37using namespace WebCore;
38
39namespace WebKit {
40
41WebVideoFrame* VideoFrameChromiumImpl::toWebVideoFrame(VideoFrameChromium* videoFrame)
42{
43    VideoFrameChromiumImpl* wrappedFrame = static_cast<VideoFrameChromiumImpl*>(videoFrame);
44    if (wrappedFrame)
45        return wrappedFrame->m_webVideoFrame;
46    return 0;
47}
48
49VideoFrameChromiumImpl::VideoFrameChromiumImpl(WebVideoFrame* webVideoFrame)
50    : m_webVideoFrame(webVideoFrame)
51{
52}
53
54VideoFrameChromium::SurfaceType VideoFrameChromiumImpl::surfaceType() const
55{
56    if (m_webVideoFrame)
57        return static_cast<VideoFrameChromium::SurfaceType>(m_webVideoFrame->surfaceType());
58    return TypeSystemMemory;
59}
60
61VideoFrameChromium::Format VideoFrameChromiumImpl::format() const
62{
63    if (m_webVideoFrame)
64        return static_cast<VideoFrameChromium::Format>(m_webVideoFrame->format());
65    return Invalid;
66}
67
68unsigned VideoFrameChromiumImpl::width() const
69{
70    if (m_webVideoFrame)
71        return m_webVideoFrame->width();
72    return 0;
73}
74
75unsigned VideoFrameChromiumImpl::width(unsigned plane) const
76{
77    unsigned planeWidth = width();
78    if (format() == YV12 && plane != static_cast<unsigned>(yPlane))
79        planeWidth /= 2;
80    return planeWidth;
81}
82
83unsigned VideoFrameChromiumImpl::height() const
84{
85    if (m_webVideoFrame)
86        return m_webVideoFrame->height();
87    return 0;
88}
89
90unsigned VideoFrameChromiumImpl::height(unsigned plane) const
91{
92    unsigned planeHeight = height();
93    if (format() == YV12 && plane != static_cast<unsigned>(yPlane))
94        planeHeight /= 2;
95    return planeHeight;
96}
97
98unsigned VideoFrameChromiumImpl::planes() const
99{
100    if (m_webVideoFrame)
101        return m_webVideoFrame->planes();
102    return 0;
103}
104
105int VideoFrameChromiumImpl::stride(unsigned plane) const
106{
107    if (m_webVideoFrame)
108        return m_webVideoFrame->stride(plane);
109    return 0;
110}
111
112const void* VideoFrameChromiumImpl::data(unsigned plane) const
113{
114    if (m_webVideoFrame)
115        return m_webVideoFrame->data(plane);
116    return 0;
117}
118
119unsigned VideoFrameChromiumImpl::texture(unsigned plane) const
120{
121    if (m_webVideoFrame)
122        return m_webVideoFrame->texture(plane);
123    return 0;
124}
125
126const IntSize VideoFrameChromiumImpl::requiredTextureSize(unsigned plane) const
127{
128    return IntSize(stride(plane), height(plane));
129}
130
131bool VideoFrameChromiumImpl::hasPaddingBytes(unsigned plane) const
132{
133    if (m_webVideoFrame)
134        return stride(plane) - width(plane) > 0;
135    return false;
136}
137
138} // namespace WebKit
139