1 
2 /*
3  * Copyright 2012 Google Inc.
4  *
5  * Use of this source code is governed by a BSD-style license that can be
6  * found in the LICENSE file.
7  */
8 
9 #ifndef GrGLPath_DEFINED
10 #define GrGLPath_DEFINED
11 
12 #include "../GrPath.h"
13 #include "gl/GrGLTypes.h"
14 
15 class GrGLGpu;
16 
17 /**
18  * Currently this represents a path built using GL_NV_path_rendering. If we
19  * support other GL path extensions then this would have to have a type enum
20  * and/or be subclassed.
21  */
22 
23 class GrGLPath : public GrPath {
24 public:
25     static bool InitPathObjectPathDataCheckingDegenerates(GrGLGpu*,
26                                                           GrGLuint pathID,
27                                                           const SkPath&);
28     static void InitPathObjectPathData(GrGLGpu*,
29                                        GrGLuint pathID,
30                                        const SkPath&);
31     static void InitPathObjectStroke(GrGLGpu* gpu, GrGLuint pathID, const GrStrokeInfo& stroke);
32 
33     static void InitPathObjectEmptyPath(GrGLGpu*, GrGLuint pathID);
34 
35 
36     GrGLPath(GrGLGpu* gpu, const SkPath& path, const GrStrokeInfo& stroke);
pathID()37     GrGLuint pathID() const { return fPathID; }
38 
shouldStroke()39     bool shouldStroke() const { return fShouldStroke; }
shouldFill()40     bool shouldFill() const { return fShouldFill; }
41 protected:
42     void onRelease() override;
43     void onAbandon() override;
44 
45 private:
46     // TODO: Figure out how to get an approximate size of the path in Gpu memory.
onGpuMemorySize()47     size_t onGpuMemorySize() const override { return 100; }
48 
49     GrGLuint fPathID;
50     bool fShouldStroke;
51     bool fShouldFill;
52 
53     typedef GrPath INHERITED;
54 };
55 
56 #endif
57