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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 SkTableColorFilter_DEFINED | 8 #ifndef SkTableColorFilter_DEFINED |
9 #define SkTableColorFilter_DEFINED | 9 #define SkTableColorFilter_DEFINED |
10 | 10 |
11 #include "SkColorFilter.h" | 11 #include "SkColorFilter.h" |
12 | 12 |
13 class SK_API SkTableColorFilter { | 13 class SK_API SkTableColorFilter { |
14 public: | 14 public: |
15 /** | 15 /** |
16 * Create a table colorfilter, copying the table into the filter, and | 16 * Create a table colorfilter, copying the table into the filter, and |
17 * applying it to all 4 components. | 17 * applying it to all 4 components. |
18 * a' = table[a]; | 18 * a' = table[a]; |
19 * r' = table[r]; | 19 * r' = table[r]; |
20 * g' = table[g]; | 20 * g' = table[g]; |
21 * b' = table[b]; | 21 * b' = table[b]; |
22 * Compoents are operated on in unpremultiplied space. If the incomming | 22 * Compoents are operated on in unpremultiplied space. If the incomming |
23 * colors are premultiplied, they are temporarily unpremultiplied, then | 23 * colors are premultiplied, they are temporarily unpremultiplied, then |
24 * the table is applied, and then the result is remultiplied. | 24 * the table is applied, and then the result is remultiplied. |
25 */ | 25 */ |
26 static SkColorFilter* Create(const uint8_t table[256]); | 26 static sk_sp<SkColorFilter> Make(const uint8_t table[256]); |
27 | 27 |
28 /** | 28 /** |
29 * Create a table colorfilter, with a different table for each | 29 * Create a table colorfilter, with a different table for each |
30 * component [A, R, G, B]. If a given table is NULL, then it is | 30 * component [A, R, G, B]. If a given table is NULL, then it is |
31 * treated as identity, with the component left unchanged. If a table | 31 * treated as identity, with the component left unchanged. If a table |
32 * is not null, then its contents are copied into the filter. | 32 * is not null, then its contents are copied into the filter. |
33 */ | 33 */ |
| 34 static sk_sp<SkColorFilter> MakeARGB(const uint8_t tableA[256], |
| 35 const uint8_t tableR[256], |
| 36 const uint8_t tableG[256], |
| 37 const uint8_t tableB[256]); |
| 38 |
| 39 #ifdef SK_SUPPORT_LEGACY_COLORFILTER_PTR |
| 40 static SkColorFilter* Create(const uint8_t table[256]) { |
| 41 return Make(table).release(); |
| 42 } |
34 static SkColorFilter* CreateARGB(const uint8_t tableA[256], | 43 static SkColorFilter* CreateARGB(const uint8_t tableA[256], |
35 const uint8_t tableR[256], | 44 const uint8_t tableR[256], |
36 const uint8_t tableG[256], | 45 const uint8_t tableG[256], |
37 const uint8_t tableB[256]); | 46 const uint8_t tableB[256]) { |
38 | 47 return MakeARGB(tableA, tableR, tableG, tableB).release(); |
| 48 } |
| 49 #endif |
| 50 |
39 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() | 51 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() |
40 }; | 52 }; |
41 | 53 |
42 #endif | 54 #endif |
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