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
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkXfermode_proccoeff_DEFINED
#define SkXfermode_proccoeff_DEFINED
#include "SkXfermode.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
struct ProcCoeff {
SkXfermodeProc fProc;
SkXfermode::Coeff fSC;
SkXfermode::Coeff fDC;
};
#define CANNOT_USE_COEFF SkXfermode::Coeff(-1)
class SK_API SkProcCoeffXfermode : public SkXfermode {
public:
SkProcCoeffXfermode(const ProcCoeff& rec, Mode mode) {
fMode = mode;
fProc = rec.fProc;
// these may be valid, or may be CANNOT_USE_COEFF
fSrcCoeff = rec.fSC;
fDstCoeff = rec.fDC;
}
void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
const SkAlpha aa[]) const override;
void xfer16(uint16_t dst[], const SkPMColor src[], int count,
const SkAlpha aa[]) const override;
void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
const SkAlpha aa[]) const override;
bool asMode(Mode* mode) const override;
bool supportsCoverageAsAlpha() const override;
bool isOpaque(SkXfermode::SrcColorOpacity opacityType) const override;
#if SK_SUPPORT_GPU
bool asFragmentProcessor(const GrFragmentProcessor**,
const GrFragmentProcessor*) const override;
bool asXPFactory(GrXPFactory**) const override;
#endif
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkProcCoeffXfermode)
protected:
void flatten(SkWriteBuffer& buffer) const override;
Mode getMode() const { return fMode; }
SkXfermodeProc getProc() const { return fProc; }
private:
SkXfermodeProc fProc;
Mode fMode;
Coeff fSrcCoeff, fDstCoeff;
friend class SkXfermode;
typedef SkXfermode INHERITED;
};
#endif // #ifndef SkXfermode_proccoeff_DEFINED
|
