1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
* Copyright (c) 2008, Google Inc. All rights reserved.
* Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
* Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/platform/graphics/interpolation_space.h"
#include "base/notreached.h"
#include "cc/paint/color_filter.h"
namespace blink {
namespace interpolation_space_utilities {
namespace {
sk_sp<cc::ColorFilter> GetConversionFilter(
InterpolationSpace dst_interpolation_space,
InterpolationSpace src_interpolation_space) {
// Identity.
if (src_interpolation_space == dst_interpolation_space)
return nullptr;
switch (dst_interpolation_space) {
case kInterpolationSpaceLinear:
return cc::ColorFilter::MakeSRGBToLinearGamma();
case kInterpolationSpaceSRGB:
return cc::ColorFilter::MakeLinearToSRGBGamma();
}
NOTREACHED();
}
} // namespace
Color ConvertColor(const Color& src_color,
InterpolationSpace dst_interpolation_space,
InterpolationSpace src_interpolation_space) {
sk_sp<cc::ColorFilter> conversion_filter =
GetConversionFilter(dst_interpolation_space, src_interpolation_space);
return conversion_filter
? Color::FromSkColor4f(
conversion_filter->FilterColor(src_color.toSkColor4f()))
: src_color;
}
sk_sp<cc::ColorFilter> CreateInterpolationSpaceFilter(
InterpolationSpace src_interpolation_space,
InterpolationSpace dst_interpolation_space) {
return GetConversionFilter(dst_interpolation_space, src_interpolation_space);
}
} // namespace interpolation_space_utilities
} // namespace blink
|
