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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 * | 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 | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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31 | 31 |
32 namespace blink { | 32 namespace blink { |
33 | 33 |
34 class PNGImageReader; | 34 class PNGImageReader; |
35 | 35 |
36 class PLATFORM_EXPORT PNGImageDecoder final : public ImageDecoder { | 36 class PLATFORM_EXPORT PNGImageDecoder final : public ImageDecoder { |
37 WTF_MAKE_NONCOPYABLE(PNGImageDecoder); | 37 WTF_MAKE_NONCOPYABLE(PNGImageDecoder); |
38 | 38 |
39 public: | 39 public: |
40 PNGImageDecoder(AlphaOption, | 40 PNGImageDecoder(AlphaOption, |
41 GammaAndColorProfileOption, | 41 ColorSpaceOption, |
42 size_t maxDecodedBytes, | 42 size_t maxDecodedBytes, |
43 size_t offset = 0); | 43 size_t offset = 0); |
44 ~PNGImageDecoder() override; | 44 ~PNGImageDecoder() override; |
45 | 45 |
46 // ImageDecoder: | 46 // ImageDecoder: |
47 String filenameExtension() const override { return "png"; } | 47 String filenameExtension() const override { return "png"; } |
48 | 48 |
49 // Callbacks from libpng | 49 // Callbacks from libpng |
50 void headerAvailable(); | 50 void headerAvailable(); |
51 void rowAvailable(unsigned char* row, unsigned rowIndex, int); | 51 void rowAvailable(unsigned char* row, unsigned rowIndex, int); |
52 void complete(); | 52 void complete(); |
53 | 53 |
54 private: | 54 private: |
55 // ImageDecoder: | 55 // ImageDecoder: |
56 void decodeSize() override { decode(true); } | 56 void decodeSize() override { decode(true); } |
57 void decode(size_t) override { decode(false); } | 57 void decode(size_t) override { decode(false); } |
58 | 58 |
59 // Decodes the image. If |onlySize| is true, stops decoding after | 59 // Decodes the image. If |onlySize| is true, stops decoding after |
60 // calculating the image size. If decoding fails but there is no more | 60 // calculating the image size. If decoding fails but there is no more |
61 // data coming, sets the "decode failure" flag. | 61 // data coming, sets the "decode failure" flag. |
62 void decode(bool onlySize); | 62 void decode(bool onlySize); |
63 | 63 |
64 std::unique_ptr<PNGImageReader> m_reader; | 64 std::unique_ptr<PNGImageReader> m_reader; |
65 const unsigned m_offset; | 65 const unsigned m_offset; |
66 }; | 66 }; |
67 | 67 |
68 } // namespace blink | 68 } // namespace blink |
69 | 69 |
70 #endif | 70 #endif |
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