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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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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 #ifndef BMPImageReader_h | 31 #ifndef BMPImageReader_h |
32 #define BMPImageReader_h | 32 #define BMPImageReader_h |
33 | 33 |
34 #include <stdint.h> | 34 #include <stdint.h> |
35 #include "core/platform/image-decoders/ImageDecoder.h" | 35 #include "core/platform/image-decoders/ImageDecoder.h" |
| 36 #include "wtf/CPU.h" |
36 | 37 |
37 namespace WebCore { | 38 namespace WebCore { |
38 | 39 |
39 // This class decodes a BMP image. It is used in the BMP and ICO decoders, | 40 // This class decodes a BMP image. It is used in the BMP and ICO decoders, |
40 // which wrap it in the appropriate code to read file headers, etc. | 41 // which wrap it in the appropriate code to read file headers, etc. |
41 class BMPImageReader { | 42 class BMPImageReader { |
42 WTF_MAKE_FAST_ALLOCATED; | 43 WTF_MAKE_FAST_ALLOCATED; |
43 public: | 44 public: |
44 // Read a value from |data[offset]|, converting from little to native | 45 // Read a value from |data[offset]|, converting from little to native |
45 // endianness. | 46 // endianness. |
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346 // ICOs store a 1bpp "mask" immediately after the main bitmap image data | 347 // ICOs store a 1bpp "mask" immediately after the main bitmap image data |
347 // (and, confusingly, add its height to the biHeight value in the info | 348 // (and, confusingly, add its height to the biHeight value in the info |
348 // header, thus doubling it). This variable tracks whether we have such | 349 // header, thus doubling it). This variable tracks whether we have such |
349 // a mask and if we've started decoding it yet. | 350 // a mask and if we've started decoding it yet. |
350 AndMaskState m_andMaskState; | 351 AndMaskState m_andMaskState; |
351 }; | 352 }; |
352 | 353 |
353 } // namespace WebCore | 354 } // namespace WebCore |
354 | 355 |
355 #endif | 356 #endif |
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