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1 /* | 1 /* |
2 * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple 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 |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #include "config.h" | 26 #include "config.h" |
27 #include "platform/graphics/Color.h" | 27 #include "platform/graphics/Color.h" |
28 | 28 |
| 29 #include "platform/graphics/ColorSpace.h" |
29 #include "wtf/Assertions.h" | 30 #include "wtf/Assertions.h" |
30 #include "wtf/DecimalNumber.h" | 31 #include "wtf/DecimalNumber.h" |
31 #include "wtf/HexNumber.h" | 32 #include "wtf/HexNumber.h" |
32 #include "wtf/MathExtras.h" | 33 #include "wtf/MathExtras.h" |
33 #include "wtf/text/StringBuilder.h" | 34 #include "wtf/text/StringBuilder.h" |
34 | 35 |
35 using namespace std; | 36 using namespace std; |
36 | 37 |
37 namespace WebCore { | 38 namespace WebCore { |
38 | 39 |
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325 static_cast<int>(multiplier * g * scaleFactor), | 326 static_cast<int>(multiplier * g * scaleFactor), |
326 static_cast<int>(multiplier * b * scaleFactor), | 327 static_cast<int>(multiplier * b * scaleFactor), |
327 alpha()); | 328 alpha()); |
328 } | 329 } |
329 | 330 |
330 Color Color::combineWithAlpha(float otherAlpha) const | 331 Color Color::combineWithAlpha(float otherAlpha) const |
331 { | 332 { |
332 return colorWithOverrideAlpha(rgb(), (alpha() / 255.f) * otherAlpha); | 333 return colorWithOverrideAlpha(rgb(), (alpha() / 255.f) * otherAlpha); |
333 } | 334 } |
334 | 335 |
| 336 Color Color::convertToLinear() const |
| 337 { |
| 338 const Vector<uint8_t>& lookUpTable = getLinearRgbLUT(); |
| 339 return Color(lookUpTable[red()], lookUpTable[green()], lookUpTable[blue()],
alpha()); |
| 340 } |
| 341 |
335 static int blendComponent(int c, int a) | 342 static int blendComponent(int c, int a) |
336 { | 343 { |
337 // We use white. | 344 // We use white. |
338 float alpha = a / 255.0f; | 345 float alpha = a / 255.0f; |
339 int whiteBlend = 255 - a; | 346 int whiteBlend = 255 - a; |
340 c -= whiteBlend; | 347 c -= whiteBlend; |
341 return static_cast<int>(c / alpha); | 348 return static_cast<int>(c / alpha); |
342 } | 349 } |
343 | 350 |
344 const int cStartAlpha = 153; // 60% | 351 const int cStartAlpha = 153; // 60% |
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458 (color.green() * alpha + 254) / 255, | 465 (color.green() * alpha + 254) / 255, |
459 (color.blue() * alpha + 254) / 255, | 466 (color.blue() * alpha + 254) / 255, |
460 alpha).rgb(); | 467 alpha).rgb(); |
461 } else | 468 } else |
462 pixelColor = color.rgb(); | 469 pixelColor = color.rgb(); |
463 | 470 |
464 return pixelColor; | 471 return pixelColor; |
465 } | 472 } |
466 | 473 |
467 } // namespace WebCore | 474 } // namespace WebCore |
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