1 | /* |
2 | * Copyright 2016 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 SkColorFilterShader_DEFINED |
9 | #define SkColorFilterShader_DEFINED |
10 | |
11 | #include "include/core/SkColorFilter.h" |
12 | #include "src/shaders/SkShaderBase.h" |
13 | |
14 | class SkArenaAlloc; |
15 | |
16 | class SkColorFilterShader : public SkShaderBase { |
17 | public: |
18 | SkColorFilterShader(sk_sp<SkShader> shader, float alpha, sk_sp<SkColorFilter> filter); |
19 | |
20 | #if SK_SUPPORT_GPU |
21 | std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(const GrFPArgs&) const override; |
22 | #endif |
23 | |
24 | private: |
25 | bool isOpaque() const override; |
26 | void flatten(SkWriteBuffer&) const override; |
27 | bool onAppendStages(const SkStageRec&) const override; |
28 | |
29 | skvm::Color onProgram(skvm::Builder*, skvm::F32 x, skvm::F32 y, skvm::Color paint, |
30 | const SkMatrix& ctm, const SkMatrix* localM, |
31 | SkFilterQuality quality, const SkColorInfo& dst, |
32 | skvm::Uniforms* uniforms, SkArenaAlloc*) const override; |
33 | |
34 | SK_FLATTENABLE_HOOKS(SkColorFilterShader) |
35 | |
36 | sk_sp<SkShader> fShader; |
37 | sk_sp<SkColorFilter> fFilter; |
38 | float fAlpha; |
39 | |
40 | typedef SkShaderBase INHERITED; |
41 | }; |
42 | |
43 | #endif |
44 | |