1 /*
2  * Copyright 2017 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #ifndef GrColorInfo_DEFINED
9 #define GrColorInfo_DEFINED
10 
11 #include "include/core/SkColorSpace.h"
12 #include "include/core/SkRefCnt.h"
13 #include "include/gpu/GrTypes.h"
14 #include "src/gpu/GrColorSpaceXform.h"
15 
16 /**
17  * All the info needed to interpret a color: Color type + alpha type + color space. Also caches
18  * the GrColorSpaceXform from sRGB. */
19 class GrColorInfo {
20 public:
21     GrColorInfo() = default;
22     GrColorInfo(const GrColorInfo&);
23     GrColorInfo& operator=(const GrColorInfo&);
24     GrColorInfo(GrColorType, SkAlphaType, sk_sp<SkColorSpace>);
25     /* implicit */ GrColorInfo(const SkColorInfo&);
26 
isLinearlyBlended()27     bool isLinearlyBlended() const { return fColorSpace && fColorSpace->gammaIsLinear(); }
28 
colorSpace()29     SkColorSpace* colorSpace() const { return fColorSpace.get(); }
refColorSpace()30     sk_sp<SkColorSpace> refColorSpace() const { return fColorSpace; }
31 
colorSpaceXformFromSRGB()32     GrColorSpaceXform* colorSpaceXformFromSRGB() const { return fColorXformFromSRGB.get(); }
refColorSpaceXformFromSRGB()33     sk_sp<GrColorSpaceXform> refColorSpaceXformFromSRGB() const { return fColorXformFromSRGB; }
34 
colorType()35     GrColorType colorType() const { return fColorType; }
alphaType()36     SkAlphaType alphaType() const { return fAlphaType; }
37 
isValid()38     bool isValid() const {
39         return fColorType != GrColorType::kUnknown && fAlphaType != kUnknown_SkAlphaType;
40     }
41 
42 private:
43     sk_sp<SkColorSpace> fColorSpace;
44     sk_sp<GrColorSpaceXform> fColorXformFromSRGB;
45     GrColorType fColorType = GrColorType::kUnknown;
46     SkAlphaType fAlphaType = kUnknown_SkAlphaType;
47 };
48 
49 #endif
50