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1 /* | 1 /* |
2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> | 2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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31 float ColorDistance::distance(const Color& fromColor, const Color& toColor) | 31 float ColorDistance::distance(const Color& fromColor, const Color& toColor) |
32 { | 32 { |
33 int redDiff = toColor.red() - fromColor.red(); | 33 int redDiff = toColor.red() - fromColor.red(); |
34 int greenDiff = toColor.green() - fromColor.green(); | 34 int greenDiff = toColor.green() - fromColor.green(); |
35 int blueDiff = toColor.blue() - fromColor.blue(); | 35 int blueDiff = toColor.blue() - fromColor.blue(); |
36 | 36 |
37 // This is just a simple distance calculation, not respecting color spaces | 37 // This is just a simple distance calculation, not respecting color spaces |
38 return sqrtf(redDiff * redDiff + blueDiff * blueDiff + greenDiff * greenDiff
); | 38 return sqrtf(redDiff * redDiff + blueDiff * blueDiff + greenDiff * greenDiff
); |
39 } | 39 } |
40 | 40 |
41 } | 41 } // namespace blink |
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