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
45 namespace blink {
46
reset()47 void WebImageDecoder::reset()
48 {
49 delete m_private;
50 }
51
init(Type type)52 void 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
setData(const WebData & data,bool allDataReceived)66 void WebImageDecoder::setData(const WebData& data, bool allDataReceived)
67 {
68 ASSERT(m_private);
69 m_private->setData(PassRefPtr<SharedBuffer>(data).get(), allDataReceived);
70 }
71
isFailed() const72 bool WebImageDecoder::isFailed() const
73 {
74 ASSERT(m_private);
75 return m_private->failed();
76 }
77
isSizeAvailable() const78 bool WebImageDecoder::isSizeAvailable() const
79 {
80 ASSERT(m_private);
81 return m_private->isSizeAvailable();
82 }
83
size() const84 WebSize WebImageDecoder::size() const
85 {
86 ASSERT(m_private);
87 return m_private->size();
88 }
89
frameCount() const90 size_t WebImageDecoder::frameCount() const
91 {
92 ASSERT(m_private);
93 return m_private->frameCount();
94 }
95
isFrameCompleteAtIndex(int index) const96 bool 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
getFrameAtIndex(int index=0) const105 WebImage 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