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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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37 | 37 |
38 extern "C" { | 38 extern "C" { |
39 #include <setjmp.h> | 39 #include <setjmp.h> |
40 #include <stdio.h> // jpeglib.h needs stdio.h FILE | 40 #include <stdio.h> // jpeglib.h needs stdio.h FILE |
41 #include "jpeglib.h" | 41 #include "jpeglib.h" |
42 } | 42 } |
43 | 43 |
44 namespace blink { | 44 namespace blink { |
45 | 45 |
46 struct JPEGOutputBuffer : public jpeg_destination_mgr { | 46 struct JPEGOutputBuffer : public jpeg_destination_mgr { |
| 47 DISALLOW_NEW(); |
47 Vector<unsigned char>* output; | 48 Vector<unsigned char>* output; |
48 Vector<unsigned char> buffer; | 49 Vector<unsigned char> buffer; |
49 }; | 50 }; |
50 | 51 |
51 static void prepareOutput(j_compress_ptr cinfo) | 52 static void prepareOutput(j_compress_ptr cinfo) |
52 { | 53 { |
53 JPEGOutputBuffer* out = static_cast<JPEGOutputBuffer*>(cinfo->dest); | 54 JPEGOutputBuffer* out = static_cast<JPEGOutputBuffer*>(cinfo->dest); |
54 const size_t internalBufferSize = 8192; | 55 const size_t internalBufferSize = 8192; |
55 out->buffer.resize(internalBufferSize); | 56 out->buffer.resize(internalBufferSize); |
56 out->next_output_byte = out->buffer.data(); | 57 out->next_output_byte = out->buffer.data(); |
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162 | 163 |
163 bool JPEGImageEncoder::encode(const ImageDataBuffer& imageData, int quality, Vec
tor<unsigned char>* output) | 164 bool JPEGImageEncoder::encode(const ImageDataBuffer& imageData, int quality, Vec
tor<unsigned char>* output) |
164 { | 165 { |
165 if (!imageData.pixels()) | 166 if (!imageData.pixels()) |
166 return false; | 167 return false; |
167 | 168 |
168 return encodePixels(IntSize(imageData.width(), imageData.height()), imageDat
a.pixels(), quality, output); | 169 return encodePixels(IntSize(imageData.width(), imageData.height()), imageDat
a.pixels(), quality, output); |
169 } | 170 } |
170 | 171 |
171 } // namespace blink | 172 } // namespace blink |
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