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 using namespace WebCore;
46
47 namespace blink {
48
reset()49 void WebImageDecoder::reset()
50 {
51 delete m_private;
52 }
53
init(Type type)54 void 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
setData(const WebData & data,bool allDataReceived)68 void WebImageDecoder::setData(const WebData& data, bool allDataReceived)
69 {
70 ASSERT(m_private);
71 m_private->setData(PassRefPtr<SharedBuffer>(data).get(), allDataReceived);
72 }
73
isFailed() const74 bool WebImageDecoder::isFailed() const
75 {
76 ASSERT(m_private);
77 return m_private->failed();
78 }
79
isSizeAvailable() const80 bool WebImageDecoder::isSizeAvailable() const
81 {
82 ASSERT(m_private);
83 return m_private->isSizeAvailable();
84 }
85
size() const86 WebSize WebImageDecoder::size() const
87 {
88 ASSERT(m_private);
89 return m_private->size();
90 }
91
frameCount() const92 size_t WebImageDecoder::frameCount() const
93 {
94 ASSERT(m_private);
95 return m_private->frameCount();
96 }
97
isFrameCompleteAtIndex(int index) const98 bool 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
getFrameAtIndex(int index=0) const107 WebImage 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