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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrColorSpaceXform_DEFINED | 8 #ifndef GrColorSpaceXform_DEFINED |
9 #define GrColorSpaceXform_DEFINED | 9 #define GrColorSpaceXform_DEFINED |
10 | 10 |
11 #include "GrColor.h" | 11 #include "GrColor.h" |
12 #include "SkMatrix44.h" | 12 #include "SkMatrix44.h" |
13 #include "SkRefCnt.h" | 13 #include "SkRefCnt.h" |
14 | 14 |
15 class SkColorSpace; | 15 class SkColorSpace; |
16 | 16 |
17 /** | 17 /** |
18 * Represents a color gamut transformation (as a 4x4 color matrix) | 18 * Represents a color gamut transformation (as a 4x4 color matrix) |
19 */ | 19 */ |
20 class GrColorSpaceXform : public SkRefCnt { | 20 class GrColorSpaceXform : public SkRefCnt { |
21 public: | 21 public: |
22 GrColorSpaceXform(const SkMatrix44& srcToDst); | 22 GrColorSpaceXform(const SkMatrix44& srcToDst); |
23 | 23 |
24 static sk_sp<GrColorSpaceXform> Make(SkColorSpace* src, SkColorSpace* dst); | 24 static sk_sp<GrColorSpaceXform> Make(SkColorSpace* src, SkColorSpace* dst); |
25 | 25 |
26 const SkMatrix44& srcToDst() { return fSrcToDst; } | 26 const SkMatrix44& srcToDst() const { return fSrcToDst; } |
27 | 27 |
28 /** | 28 /** |
29 * GrGLSLFragmentProcessor::GenKey() must call this and include the returned
value in its | 29 * GrGLSLFragmentProcessor::GenKey() must call this and include the returned
value in its |
30 * computed key. | 30 * computed key. |
31 */ | 31 */ |
32 static uint32_t XformKey(GrColorSpaceXform* xform) { | 32 static uint32_t XformKey(GrColorSpaceXform* xform) { |
33 // Code generation changes if there is an xform, but it otherwise consta
nt | 33 // Code generation changes if there is an xform, but it otherwise consta
nt |
34 return SkToBool(xform) ? 1 : 0; | 34 return SkToBool(xform) ? 1 : 0; |
35 } | 35 } |
36 | 36 |
| 37 static bool Equals(const GrColorSpaceXform* a, const GrColorSpaceXform* b); |
| 38 |
37 GrColor4f apply(const GrColor4f& srcColor); | 39 GrColor4f apply(const GrColor4f& srcColor); |
38 | 40 |
39 private: | 41 private: |
40 SkMatrix44 fSrcToDst; | 42 SkMatrix44 fSrcToDst; |
41 }; | 43 }; |
42 | 44 |
43 #endif | 45 #endif |
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