blob: 912ae8ac0137ff5cfda17ca589d0fab8208d0bce (
plain)
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
|
/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkColorSpaceXformSteps_DEFINED
#define SkColorSpaceXformSteps_DEFINED
#include "SkColorSpace.h"
#include "SkImageInfo.h"
class SkRasterPipeline;
struct SkColorSpaceXformSteps {
struct Flags {
bool unpremul;
bool linearize;
bool gamut_transform;
bool encode;
bool premul;
uint32_t mask() const {
return (unpremul ? 1 : 0)
| (linearize ? 2 : 0)
| (gamut_transform ? 4 : 0)
| (encode ? 8 : 0)
| (premul ? 16 : 0);
}
};
SkColorSpaceXformSteps(SkColorSpace* src, SkAlphaType srcAT,
SkColorSpace* dst);
static SkColorSpaceXformSteps UnpremulToUnpremul(SkColorSpace* src, SkColorSpace* dst) {
// The need to transform unpremul to unpremul comes up often enough that it's
// nice to centralize it here, especially because this use of kOpaque_SkAlphaType
// isn't the most intuitive. We basically want to always skip unpremul and premul.
return SkColorSpaceXformSteps(src, kOpaque_SkAlphaType, dst);
}
void apply(float rgba[4]) const;
void apply(SkRasterPipeline*) const;
Flags flags;
bool srcTF_is_sRGB,
dstTF_is_sRGB;
SkColorSpaceTransferFn srcTF, // Apply for linearize.
dstTFInv; // Apply for encode.
float src_to_dst_matrix[9]; // Apply this 3x3 column-major matrix for gamut_transform.
};
#endif//SkColorSpaceXformSteps_DEFINED
|
