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1 /* | 1 /* |
2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. | 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. |
3 * Copyright (C) 2008-2009 Torch Mobile, Inc. | 3 * Copyright (C) 2008-2009 Torch Mobile, Inc. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
13 * | 13 * |
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 */ | 25 */ |
26 | 26 |
27 #ifndef JPEGImageDecoder_h | 27 #ifndef JPEGImageDecoder_h |
28 #define JPEGImageDecoder_h | 28 #define JPEGImageDecoder_h |
29 | 29 |
30 #include "core/platform/image-decoders/ImageDecoder.h" | 30 #include "platform/image-decoders/ImageDecoder.h" |
31 | 31 |
| 32 #include "wtf/Noncopyable.h" |
32 #include "wtf/OwnPtr.h" | 33 #include "wtf/OwnPtr.h" |
33 | 34 |
34 namespace WebCore { | 35 namespace WebCore { |
35 | 36 |
36 class JPEGImageReader; | 37 class JPEGImageReader; |
37 | 38 |
38 // This class decodes the JPEG image format. | 39 // This class decodes the JPEG image format. |
39 class JPEGImageDecoder : public ImageDecoder { | 40 class PLATFORM_EXPORT JPEGImageDecoder : public ImageDecoder { |
40 public: | 41 WTF_MAKE_NONCOPYABLE(JPEGImageDecoder); |
41 JPEGImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorPro
fileOption, size_t maxDecodedBytes); | 42 public: |
42 virtual ~JPEGImageDecoder(); | 43 JPEGImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfile
Option, size_t maxDecodedBytes); |
| 44 virtual ~JPEGImageDecoder(); |
43 | 45 |
44 // ImageDecoder | 46 // ImageDecoder |
45 virtual String filenameExtension() const OVERRIDE { return "jpg"; } | 47 virtual String filenameExtension() const OVERRIDE { return "jpg"; } |
46 virtual bool isSizeAvailable() OVERRIDE; | 48 virtual bool isSizeAvailable() OVERRIDE; |
47 virtual IntSize decodedSize() const OVERRIDE { return m_decodedSize; } | 49 virtual IntSize decodedSize() const OVERRIDE { return m_decodedSize; } |
48 virtual bool setSize(unsigned width, unsigned height) OVERRIDE; | 50 virtual bool setSize(unsigned width, unsigned height) OVERRIDE; |
49 virtual ImageFrame* frameBufferAtIndex(size_t) OVERRIDE; | 51 virtual ImageFrame* frameBufferAtIndex(size_t) OVERRIDE; |
50 // CAUTION: setFailed() deletes |m_reader|. Be careful to avoid | 52 // CAUTION: setFailed() deletes |m_reader|. Be careful to avoid |
51 // accessing deleted memory, especially when calling this from inside | 53 // accessing deleted memory, especially when calling this from inside |
52 // JPEGImageReader! | 54 // JPEGImageReader! |
53 virtual bool setFailed() OVERRIDE; | 55 virtual bool setFailed() OVERRIDE; |
54 | 56 |
55 bool outputScanlines(); | 57 bool outputScanlines(); |
56 void jpegComplete(); | 58 void jpegComplete(); |
57 | 59 |
58 void setOrientation(ImageOrientation orientation) { m_orientation = orie
ntation; } | 60 void setOrientation(ImageOrientation orientation) { m_orientation = orientat
ion; } |
59 | 61 |
60 private: | 62 private: |
61 // Decodes the image. If |onlySize| is true, stops decoding after | 63 // Decodes the image. If |onlySize| is true, stops decoding after |
62 // calculating the image size. If decoding fails but there is no more | 64 // calculating the image size. If decoding fails but there is no more |
63 // data coming, sets the "decode failure" flag. | 65 // data coming, sets the "decode failure" flag. |
64 void decode(bool onlySize); | 66 void decode(bool onlySize); |
65 | 67 |
66 OwnPtr<JPEGImageReader> m_reader; | 68 OwnPtr<JPEGImageReader> m_reader; |
67 IntSize m_decodedSize; | 69 IntSize m_decodedSize; |
68 }; | 70 }; |
69 | 71 |
70 } // namespace WebCore | 72 } // namespace WebCore |
71 | 73 |
72 #endif | 74 #endif |
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