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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 GrDistanceFieldAdjustTable_DEFINED | 8 #ifndef GrDistanceFieldAdjustTable_DEFINED |
9 #define GrDistanceFieldAdjustTable_DEFINED | 9 #define GrDistanceFieldAdjustTable_DEFINED |
10 | 10 |
11 #include "SkRefCnt.h" | 11 #include "SkRefCnt.h" |
12 #include "SkScalar.h" | 12 #include "SkScalar.h" |
13 | 13 |
14 // Distance field text needs this table to compute a value for use in the fragme
nt shader. | 14 // Distance field text needs this table to compute a value for use in the fragme
nt shader. |
15 // Because the GrAtlasTextContext can go out of scope before the final flush, th
is needs to be | 15 // Because the GrAtlasTextContext can go out of scope before the final flush, th
is needs to be |
16 // refcnted and malloced | 16 // refcnted and malloced |
17 struct GrDistanceFieldAdjustTable : public SkNVRefCnt<GrDistanceFieldAdjustTable
> { | 17 struct GrDistanceFieldAdjustTable : public SkNVRefCnt<GrDistanceFieldAdjustTable
> { |
18 GrDistanceFieldAdjustTable() { this->buildDistanceAdjustTables(); } | 18 GrDistanceFieldAdjustTable() { this->buildDistanceAdjustTables(); } |
19 ~GrDistanceFieldAdjustTable() { | 19 ~GrDistanceFieldAdjustTable() { |
20 delete[] fTable; | 20 delete[] fTable; |
21 delete[] fSRGBTable; | 21 delete[] fGammaCorrectTable; |
22 } | 22 } |
23 | 23 |
24 const SkScalar& getAdjustment(int i, bool useSRGBTable) const { | 24 const SkScalar& getAdjustment(int i, bool useGammaCorrectTable) const { |
25 return useSRGBTable ? fSRGBTable[i] : fTable[i]; | 25 return useGammaCorrectTable ? fGammaCorrectTable[i] : fTable[i]; |
26 } | 26 } |
27 | 27 |
28 private: | 28 private: |
29 void buildDistanceAdjustTables(); | 29 void buildDistanceAdjustTables(); |
30 | 30 |
31 SkScalar* fTable; | 31 SkScalar* fTable; |
32 SkScalar* fSRGBTable; | 32 SkScalar* fGammaCorrectTable; |
33 }; | 33 }; |
34 | 34 |
35 #endif | 35 #endif |
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