xref: /aosp_15_r20/external/skia/src/shaders/SkCoordClampShader.h (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 /*
2  * Copyright 2023 Google LLC
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 SkCoordClampShader_DEFINED
9 #define SkCoordClampShader_DEFINED
10 
11 #include "include/core/SkFlattenable.h"
12 #include "include/core/SkRect.h"
13 #include "include/core/SkRefCnt.h"
14 #include "include/core/SkShader.h"
15 #include "src/shaders/SkShaderBase.h"
16 
17 #include <utility>
18 
19 class SkReadBuffer;
20 class SkWriteBuffer;
21 struct SkStageRec;
22 
23 class SkCoordClampShader final : public SkShaderBase {
24 public:
SkCoordClampShader(sk_sp<SkShader> shader,const SkRect & subset)25     SkCoordClampShader(sk_sp<SkShader> shader, const SkRect& subset)
26             : fShader(std::move(shader)), fSubset(subset) {}
27 
type()28     ShaderType type() const override { return ShaderType::kCoordClamp; }
29 
shader()30     sk_sp<SkShader> shader() const { return fShader; }
subset()31     SkRect subset() const { return fSubset; }
32 
33 protected:
34     SkCoordClampShader(SkReadBuffer&);
35     void flatten(SkWriteBuffer&) const override;
36     bool appendStages(const SkStageRec&, const SkShaders::MatrixRec&) const override;
37 
38 private:
39     friend void ::SkRegisterCoordClampShaderFlattenable();
40     SK_FLATTENABLE_HOOKS(SkCoordClampShader)
41 
42     sk_sp<SkShader> fShader;
43     SkRect fSubset;
44 };
45 
46 #endif
47