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
14class SkArenaAlloc;
15
16class SkColorFilterShader : public SkShaderBase {
17public:
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
24private:
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