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1 /* | 1 /* |
2 * Copyright (c) 2010, Google Inc. All rights reserved. | 2 * Copyright (c) 2010, 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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65 PNGImageEncoderState(png_struct* png, png_info* info) | 65 PNGImageEncoderState(png_struct* png, png_info* info) |
66 : m_png(png), m_info(info) {} | 66 : m_png(png), m_info(info) {} |
67 png_struct* m_png; | 67 png_struct* m_png; |
68 png_info* m_info; | 68 png_info* m_info; |
69 }; | 69 }; |
70 | 70 |
71 class PLATFORM_EXPORT PNGImageEncoder { | 71 class PLATFORM_EXPORT PNGImageEncoder { |
72 STATIC_ONLY(PNGImageEncoder); | 72 STATIC_ONLY(PNGImageEncoder); |
73 | 73 |
74 public: | 74 public: |
75 // Encode the input data with default compression quality. See also https://cr
bug.com/179289 | 75 // Encode the input data with default compression quality. See also |
| 76 // https://crbug.com/179289 |
76 static bool encode(const ImageDataBuffer&, Vector<unsigned char>* output); | 77 static bool encode(const ImageDataBuffer&, Vector<unsigned char>* output); |
77 | 78 |
78 // Functions for progressive image encoding | 79 // Functions for progressive image encoding |
79 static void writeOneRowToPng(unsigned char* pixels, PNGImageEncoderState*); | 80 static void writeOneRowToPng(unsigned char* pixels, PNGImageEncoderState*); |
80 static void finalizePng(PNGImageEncoderState*); | 81 static void finalizePng(PNGImageEncoderState*); |
81 }; | 82 }; |
82 | 83 |
83 } // namespace blink | 84 } // namespace blink |
84 | 85 |
85 #endif | 86 #endif |
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