OLD | NEW |
| (Empty) |
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 #ifndef WebImageDecoder_h | |
32 #define WebImageDecoder_h | |
33 | |
34 #include "../platform/WebCommon.h" | |
35 #include "../platform/WebImage.h" | |
36 #include "../platform/WebNonCopyable.h" | |
37 | |
38 namespace WebCore { class ImageDecoder; } | |
39 | |
40 namespace WebKit { | |
41 | |
42 typedef WebCore::ImageDecoder WebImageDecoderPrivate; | |
43 class WebData; | |
44 | |
45 class WebImageDecoder : public WebNonCopyable { | |
46 public: | |
47 enum Type { | |
48 TypeBMP, | |
49 TypeICO | |
50 }; | |
51 | |
52 ~WebImageDecoder() { reset(); } | |
53 | |
54 explicit WebImageDecoder(Type type) { init(type); } | |
55 | |
56 // Sets data contents for underlying decoder. All the API methods | |
57 // require that setData() is called prior to their use. | |
58 WEBKIT_EXPORT void setData(const WebData& data, bool allDataReceived); | |
59 | |
60 // Deletes owned decoder. | |
61 WEBKIT_EXPORT void reset(); | |
62 | |
63 // Returns true if image decoding failed. | |
64 WEBKIT_EXPORT bool isFailed() const; | |
65 | |
66 // Returns true if size information is available for the decoder. | |
67 WEBKIT_EXPORT bool isSizeAvailable() const; | |
68 | |
69 // Returns the size of the image. | |
70 WEBKIT_EXPORT WebSize size() const; | |
71 | |
72 // Gives frame count for the image. For multiple frames, decoder scans the i
mage data for the count. | |
73 WEBKIT_EXPORT size_t frameCount() const; | |
74 | |
75 // Returns if the frame at given index is completely decoded. | |
76 WEBKIT_EXPORT bool isFrameCompleteAtIndex(int index) const; | |
77 | |
78 // Creates and returns WebImage from buffer at the index. | |
79 WEBKIT_EXPORT WebImage getFrameAtIndex(int index) const; | |
80 | |
81 private: | |
82 // Creates type-specific decoder. | |
83 WEBKIT_EXPORT void init(Type type); | |
84 | |
85 WebImageDecoderPrivate* m_private; | |
86 }; | |
87 | |
88 } // namespace WebKit | |
89 | |
90 #endif | |
OLD | NEW |