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
|
/*
* Copyright (C) 2024 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
*/
#pragma once
#include <optional>
namespace WTF {
class TextStream;
}
namespace WebCore {
class DestinationColorSpace;
enum class ContentsFormat : uint8_t {
RGBA8 = 1 << 0,
#if ENABLE(PIXEL_FORMAT_RGB10)
RGBA10 = 1 << 1,
#endif
#if ENABLE(PIXEL_FORMAT_RGBA16F)
RGBA16F = 1 << 2,
#endif
};
constexpr unsigned contentsFormatBytesPerPixel(ContentsFormat contentsFormat, bool isOpaque)
{
#if !ENABLE(PIXEL_FORMAT_RGB10)
UNUSED_PARAM(isOpaque);
#endif
switch (contentsFormat) {
case ContentsFormat::RGBA8:
return 4;
#if ENABLE(PIXEL_FORMAT_RGB10)
case ContentsFormat::RGBA10:
return isOpaque ? 4 : 5;
#endif
#if ENABLE(PIXEL_FORMAT_RGBA16F)
case ContentsFormat::RGBA16F:
return 8;
#endif
}
ASSERT_NOT_REACHED();
return 4;
}
WEBCORE_EXPORT std::optional<DestinationColorSpace> contentsFormatExtendedColorSpace(ContentsFormat);
WEBCORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, ContentsFormat);
} // namespace WebCore
|
