OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 SkLumaColorFilter_DEFINED | 8 #ifndef SkLumaColorFilter_DEFINED |
9 #define SkLumaColorFilter_DEFINED | 9 #define SkLumaColorFilter_DEFINED |
10 | 10 |
11 #include "SkColorFilter.h" | 11 #include "SkColorFilter.h" |
| 12 #include "SkRefCnt.h" |
12 | 13 |
13 /** | 14 /** |
14 * Luminance-to-alpha color filter, as defined in | 15 * Luminance-to-alpha color filter, as defined in |
15 * http://www.w3.org/TR/SVG/masking.html#Masking | 16 * http://www.w3.org/TR/SVG/masking.html#Masking |
16 * http://www.w3.org/TR/css-masking/#MaskValues | 17 * http://www.w3.org/TR/css-masking/#MaskValues |
17 * | 18 * |
18 * The resulting color is black with transparency equal to the | 19 * The resulting color is black with transparency equal to the |
19 * luminance value modulated by alpha: | 20 * luminance value modulated by alpha: |
20 * | 21 * |
21 * C' = [ Lum * a, 0, 0, 0 ] | 22 * C' = [ Lum * a, 0, 0, 0 ] |
22 * | 23 * |
23 */ | 24 */ |
24 class SK_API SkLumaColorFilter : public SkColorFilter { | 25 class SK_API SkLumaColorFilter : public SkColorFilter { |
25 public: | 26 public: |
26 static sk_sp<SkColorFilter> Make(); | 27 static sk_sp<SkColorFilter> Make(); |
27 | 28 |
28 #ifdef SK_SUPPORT_LEGACY_COLORFILTER_PTR | 29 #ifdef SK_SUPPORT_LEGACY_COLORFILTER_PTR |
29 static SkColorFilter* Create() { return Make().release(); } | 30 static SkColorFilter* Create() { return Make().release(); } |
30 #endif | 31 #endif |
31 | 32 |
32 void filterSpan(const SkPMColor src[], int count, SkPMColor[]) const overrid
e; | 33 void filterSpan(const SkPMColor src[], int count, SkPMColor[]) const overrid
e; |
33 | 34 |
34 #if SK_SUPPORT_GPU | 35 #if SK_SUPPORT_GPU |
35 const GrFragmentProcessor* asFragmentProcessor(GrContext*) const override; | 36 sk_sp<GrFragmentProcessor> asFragmentProcessor(GrContext*) const override; |
36 #endif | 37 #endif |
37 | 38 |
38 SK_TO_STRING_OVERRIDE() | 39 SK_TO_STRING_OVERRIDE() |
39 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLumaColorFilter) | 40 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLumaColorFilter) |
40 | 41 |
41 protected: | 42 protected: |
42 void flatten(SkWriteBuffer&) const override; | 43 void flatten(SkWriteBuffer&) const override; |
43 | 44 |
44 private: | 45 private: |
45 SkLumaColorFilter(); | 46 SkLumaColorFilter(); |
46 | 47 |
47 typedef SkColorFilter INHERITED; | 48 typedef SkColorFilter INHERITED; |
48 }; | 49 }; |
49 | 50 |
50 #endif | 51 #endif |
OLD | NEW |