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 "public/web/WebImageDecoder.h"
33
34#include "platform/SharedBuffer.h"
35#include "platform/image-decoders/bmp/BMPImageDecoder.h"
36#include "platform/image-decoders/ico/ICOImageDecoder.h"
37#include "public/platform/Platform.h"
38#include "public/platform/WebData.h"
39#include "public/platform/WebImage.h"
40#include "public/platform/WebSize.h"
41#include "wtf/OwnPtr.h"
42#include "wtf/PassOwnPtr.h"
43#include "wtf/PassRefPtr.h"
44
45namespace blink {
46
47void WebImageDecoder::reset()
48{
49    delete m_private;
50}
51
52void WebImageDecoder::init(Type type)
53{
54    size_t maxDecodedBytes = Platform::current()->maxDecodedImageBytes();
55
56    switch (type) {
57    case TypeBMP:
58        m_private = new BMPImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied, maxDecodedBytes);
59        break;
60    case TypeICO:
61        m_private = new ICOImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied, maxDecodedBytes);
62        break;
63    }
64}
65
66void WebImageDecoder::setData(const WebData& data, bool allDataReceived)
67{
68    ASSERT(m_private);
69    m_private->setData(PassRefPtr<SharedBuffer>(data).get(), allDataReceived);
70}
71
72bool WebImageDecoder::isFailed() const
73{
74    ASSERT(m_private);
75    return m_private->failed();
76}
77
78bool WebImageDecoder::isSizeAvailable() const
79{
80    ASSERT(m_private);
81    return m_private->isSizeAvailable();
82}
83
84WebSize WebImageDecoder::size() const
85{
86    ASSERT(m_private);
87    return m_private->size();
88}
89
90size_t WebImageDecoder::frameCount() const
91{
92    ASSERT(m_private);
93    return m_private->frameCount();
94}
95
96bool WebImageDecoder::isFrameCompleteAtIndex(int index) const
97{
98    ASSERT(m_private);
99    ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
100    if (!frameBuffer)
101        return false;
102    return frameBuffer->status() == ImageFrame::FrameComplete;
103}
104
105WebImage WebImageDecoder::getFrameAtIndex(int index = 0) const
106{
107    ASSERT(m_private);
108    ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
109    if (!frameBuffer)
110        return WebImage();
111    RefPtr<NativeImageSkia> image = frameBuffer->asNewNativeImage();
112    return WebImage(image->bitmap());
113}
114
115} // namespace blink
116