xref: /aosp_15_r20/external/skia/gm/drrect.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 /*
2  * Copyright 2014 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 #include "gm/gm.h"
9 #include "include/core/SkCanvas.h"
10 #include "include/core/SkPaint.h"
11 #include "include/core/SkPoint.h"
12 #include "include/core/SkRRect.h"
13 #include "include/core/SkRect.h"
14 #include "include/core/SkScalar.h"
15 #include "include/core/SkSize.h"
16 #include "include/core/SkString.h"
17 #include "include/core/SkTypes.h"
18 
19 class DRRectGM : public skiagm::GM {
20 public:
DRRectGM()21     DRRectGM() {}
22 
23 protected:
getName() const24     SkString getName() const override { return SkString("drrect"); }
25 
getISize()26     SkISize getISize() override { return SkISize::Make(640, 480); }
27 
onDraw(SkCanvas * canvas)28     void onDraw(SkCanvas* canvas) override {
29         SkPaint paint;
30         paint.setAntiAlias(true);
31 
32         SkRRect outers[4];
33         // like squares/circles, to exercise fast-cases in GPU
34         SkRect r = { 0, 0, 100, 100 };
35         SkVector radii[4] = {
36             { 0, 0 }, { 30, 1 }, { 10, 40 }, { 40, 40 }
37         };
38 
39         const SkScalar dx = r.width() + 16;
40         const SkScalar dy = r.height() + 16;
41 
42         outers[0].setRect(r);
43         outers[1].setOval(r);
44         outers[2].setRectXY(r, 20, 20);
45         outers[3].setRectRadii(r, radii);
46 
47         SkRRect inners[5];
48         r.inset(25, 25);
49 
50         inners[0].setEmpty();
51         inners[1].setRect(r);
52         inners[2].setOval(r);
53         inners[3].setRectXY(r, 20, 20);
54         inners[4].setRectRadii(r, radii);
55 
56         canvas->translate(16, 16);
57         for (size_t j = 0; j < std::size(inners); ++j) {
58             for (size_t i = 0; i < std::size(outers); ++i) {
59                 canvas->save();
60                 canvas->translate(dx * j, dy * i);
61                 canvas->drawDRRect(outers[i], inners[j], paint);
62                 canvas->restore();
63             }
64         }
65     }
66 
67 private:
68     using INHERITED = GM;
69 };
70 
71 DEF_GM( return new DRRectGM; )
72