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1 /* | 1 /* |
2 * Copyright (c) 2008, 2009, Google Inc. All rights reserved. | 2 * Copyright (c) 2008, 2009, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * 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 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "platform/image-decoders/bmp/BMPImageDecoder.h" | 31 #include "platform/image-decoders/bmp/BMPImageDecoder.h" |
32 | 32 |
33 #include "platform/image-decoders/FastSharedBufferReader.h" | 33 #include "platform/image-decoders/FastSharedBufferReader.h" |
34 #include "wtf/PassOwnPtr.h" | 34 #include "wtf/PtrUtil.h" |
35 | 35 |
36 namespace blink { | 36 namespace blink { |
37 | 37 |
38 // Number of bits in .BMP used to store the file header (doesn't match | 38 // Number of bits in .BMP used to store the file header (doesn't match |
39 // "sizeof(BMPImageDecoder::BitmapFileHeader)" since we omit some fields and | 39 // "sizeof(BMPImageDecoder::BitmapFileHeader)" since we omit some fields and |
40 // don't pack). | 40 // don't pack). |
41 static const size_t sizeOfFileHeader = 14; | 41 static const size_t sizeOfFileHeader = 14; |
42 | 42 |
43 BMPImageDecoder::BMPImageDecoder(AlphaOption alphaOption, GammaAndColorProfileOp
tion colorOptions, size_t maxDecodedBytes) | 43 BMPImageDecoder::BMPImageDecoder(AlphaOption alphaOption, GammaAndColorProfileOp
tion colorOptions, size_t maxDecodedBytes) |
44 : ImageDecoder(alphaOption, colorOptions, maxDecodedBytes) | 44 : ImageDecoder(alphaOption, colorOptions, maxDecodedBytes) |
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73 m_reader.reset(); | 73 m_reader.reset(); |
74 } | 74 } |
75 | 75 |
76 bool BMPImageDecoder::decodeHelper(bool onlySize) | 76 bool BMPImageDecoder::decodeHelper(bool onlySize) |
77 { | 77 { |
78 size_t imgDataOffset = 0; | 78 size_t imgDataOffset = 0; |
79 if ((m_decodedOffset < sizeOfFileHeader) && !processFileHeader(imgDataOffset
)) | 79 if ((m_decodedOffset < sizeOfFileHeader) && !processFileHeader(imgDataOffset
)) |
80 return false; | 80 return false; |
81 | 81 |
82 if (!m_reader) { | 82 if (!m_reader) { |
83 m_reader = adoptPtr(new BMPImageReader(this, m_decodedOffset, imgDataOff
set, false)); | 83 m_reader = wrapUnique(new BMPImageReader(this, m_decodedOffset, imgDataO
ffset, false)); |
84 m_reader->setData(m_data.get()); | 84 m_reader->setData(m_data.get()); |
85 } | 85 } |
86 | 86 |
87 if (!m_frameBufferCache.isEmpty()) | 87 if (!m_frameBufferCache.isEmpty()) |
88 m_reader->setBuffer(&m_frameBufferCache.first()); | 88 m_reader->setBuffer(&m_frameBufferCache.first()); |
89 | 89 |
90 return m_reader->decodeBMP(onlySize); | 90 return m_reader->decodeBMP(onlySize); |
91 } | 91 } |
92 | 92 |
93 bool BMPImageDecoder::processFileHeader(size_t& imgDataOffset) | 93 bool BMPImageDecoder::processFileHeader(size_t& imgDataOffset) |
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115 POINTER = 0x5054, // "PT" | 115 POINTER = 0x5054, // "PT" |
116 COLORICON = 0x4349, // "CI" | 116 COLORICON = 0x4349, // "CI" |
117 COLORPOINTER = 0x4350, // "CP" | 117 COLORPOINTER = 0x4350, // "CP" |
118 BITMAPARRAY = 0x4241, // "BA" | 118 BITMAPARRAY = 0x4241, // "BA" |
119 */ | 119 */ |
120 }; | 120 }; |
121 return (fileType == BMAP) || setFailed(); | 121 return (fileType == BMAP) || setFailed(); |
122 } | 122 } |
123 | 123 |
124 } // namespace blink | 124 } // namespace blink |
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