1 /*
2  * Copyright 2013 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 GrPathProcessor_DEFINED
9 #define GrPathProcessor_DEFINED
10 
11 #include "GrPrimitiveProcessor.h"
12 
13 /*
14  * The path equivalent of the GP.  For now this just manages color. In the long term we plan on
15  * extending this class to handle all nvpr uniform / varying / program work.
16  */
17 class GrPathProcessor : public GrPrimitiveProcessor {
18 public:
19     static GrPathProcessor* Create(GrColor color,
20                                    const GrXPOverridesForBatch& overrides,
21                                    const SkMatrix& viewMatrix = SkMatrix::I(),
22                                    const SkMatrix& localMatrix = SkMatrix::I()) {
23         return new GrPathProcessor(color, overrides, viewMatrix, localMatrix);
24     }
25 
name()26     const char* name() const override { return "PathProcessor"; }
27 
color()28     GrColor color() const { return fColor; }
viewMatrix()29     const SkMatrix& viewMatrix() const { return fViewMatrix; }
localMatrix()30     const SkMatrix& localMatrix() const { return fLocalMatrix; }
31 
willUseGeoShader()32     bool willUseGeoShader() const override { return false; }
33 
34     virtual void getGLSLProcessorKey(const GrGLSLCaps& caps,
35                                      GrProcessorKeyBuilder* b) const override;
36 
37     virtual GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps& caps) const override;
38 
hasTransformedLocalCoords()39     bool hasTransformedLocalCoords() const override { return false; }
40 
overrides()41     const GrXPOverridesForBatch& overrides() const { return fOverrides; }
42 
isPathRendering()43     virtual bool isPathRendering() const override { return true; }
44 
45 private:
46     GrPathProcessor(GrColor color, const GrXPOverridesForBatch& overrides,
47                     const SkMatrix& viewMatrix, const SkMatrix& localMatrix);
48 
hasExplicitLocalCoords()49     bool hasExplicitLocalCoords() const override { return false; }
50 
51     GrColor fColor;
52     const SkMatrix fViewMatrix;
53     const SkMatrix fLocalMatrix;
54     GrXPOverridesForBatch fOverrides;
55 
56     typedef GrPrimitiveProcessor INHERITED;
57 };
58 
59 #endif
60