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 "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
45using namespace WebCore;
46
47namespace blink {
48
49void WebImageDecoder::reset()
50{
51    delete m_private;
52}
53
54void WebImageDecoder::init(Type type)
55{
56    size_t maxDecodedBytes = blink::Platform::current()->maxDecodedImageBytes();
57
58    switch (type) {
59    case TypeBMP:
60        m_private = new BMPImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied, maxDecodedBytes);
61        break;
62    case TypeICO:
63        m_private = new ICOImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied, maxDecodedBytes);
64        break;
65    }
66}
67
68void WebImageDecoder::setData(const WebData& data, bool allDataReceived)
69{
70    ASSERT(m_private);
71    m_private->setData(PassRefPtr<SharedBuffer>(data).get(), allDataReceived);
72}
73
74bool WebImageDecoder::isFailed() const
75{
76    ASSERT(m_private);
77    return m_private->failed();
78}
79
80bool WebImageDecoder::isSizeAvailable() const
81{
82    ASSERT(m_private);
83    return m_private->isSizeAvailable();
84}
85
86WebSize WebImageDecoder::size() const
87{
88    ASSERT(m_private);
89    return m_private->size();
90}
91
92size_t WebImageDecoder::frameCount() const
93{
94    ASSERT(m_private);
95    return m_private->frameCount();
96}
97
98bool WebImageDecoder::isFrameCompleteAtIndex(int index) const
99{
100    ASSERT(m_private);
101    ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
102    if (!frameBuffer)
103        return false;
104    return frameBuffer->status() == ImageFrame::FrameComplete;
105}
106
107WebImage WebImageDecoder::getFrameAtIndex(int index = 0) const
108{
109    ASSERT(m_private);
110    ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
111    if (!frameBuffer)
112        return WebImage();
113    RefPtr<NativeImageSkia> image = frameBuffer->asNewNativeImage();
114    return WebImage(image->bitmap());
115}
116
117} // namespace blink
118