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1 /* | |
2 * Copyright (C) 2006 Apple Computer, 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 | |
6 * are met: | |
7 * 1. Redistributions of source code must retain the above copyright | |
8 * notice, this list of conditions and the following disclaimer. | |
9 * 2. Redistributions in binary form must reproduce the above copyright | |
10 * notice, this list of conditions and the following disclaimer in the | |
11 * documentation and/or other materials provided with the distribution. | |
12 * | |
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 */ | |
25 | |
26 | |
27 #include "platform/image-decoders/SegmentReader.h" | |
28 #include "platform/image-decoders/png/PNGImageDecoder.h" | |
29 #include "platform/PlatformExport.h" | |
30 #include "png.h" | |
31 #include "wtf/Allocator.h" | |
32 #include "wtf/PtrUtil.h" | |
33 | |
34 #ifndef PNGImageReader_h | |
35 #define PNGImageReader_h | |
36 | |
37 namespace blink { | |
38 | |
39 class PLATFORM_EXPORT PNGImageReader final { | |
40 USING_FAST_MALLOC(PNGImageReader); | |
41 WTF_MAKE_NONCOPYABLE(PNGImageReader); | |
42 public: | |
43 PNGImageReader(PNGImageDecoder*, size_t readOffset); | |
44 ~PNGImageReader(); | |
45 | |
46 bool parse(const SegmentReader&, PNGImageDecoder::PNGParseQuery); | |
47 bool readChunk(const char* tag, const void* dataChunk, size_t length); | |
48 | |
49 png_structp pngPtr() const { return m_png; } | |
50 png_infop infoPtr() const { return m_info; } | |
51 | |
52 size_t getReadOffset() const { return m_readOffset; } | |
53 void setReadOffset(size_t offset) { m_readOffset = offset; } | |
54 size_t currentBufferSize() const { return m_currentBufferSize; } | |
55 bool decodingSizeOnly() const { return m_decodingSizeOnly; } | |
56 void setHasAlpha(bool hasAlpha) { m_hasAlpha = hasAlpha; } | |
57 bool hasAlpha() const { return m_hasAlpha; } | |
58 | |
59 png_bytep interlaceBuffer() const { return m_interlaceBuffer.get(); } | |
60 void createInterlaceBuffer(int size) { m_interlaceBuffer = wrapArrayUnique(n ew png_byte[size]); } | |
61 #if USE(QCMSLIB) | |
62 png_bytep rowBuffer() const { return m_rowBuffer.get(); } | |
63 void createRowBuffer(int size) { m_rowBuffer = wrapArrayUnique(new png_byte[ size]); } | |
64 #endif | |
65 | |
66 | |
67 private: | |
68 png_structp m_png; | |
69 png_infop m_info; | |
70 PNGImageDecoder* m_decoder; | |
71 size_t m_readOffset; | |
72 size_t m_currentBufferSize; | |
73 bool m_decodingSizeOnly; | |
74 bool m_hasAlpha; | |
75 std::unique_ptr<png_byte[]> m_interlaceBuffer; | |
76 | |
77 inline bool readAnimationControl(const png_byte* data); | |
scroggo_chromium
2016/10/04 14:50:17
I think the compiler is going to ignore this "inli
joostouwerling
2016/10/11 16:31:06
Acknowledged.
| |
78 | |
79 #if USE(QCMSLIB) | |
80 std::unique_ptr<png_byte[]> m_rowBuffer; | |
81 #endif | |
82 }; | |
83 | |
84 }; | |
85 | |
86 #endif | |
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