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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 #include "gm.h" | |
9 #include "SkColorFilter.h" | |
10 #include "SkBlurMaskFilter.h" | |
11 | |
12 namespace skiagm { | |
13 | |
14 /** | |
robertphillips
2013/10/16 01:50:45
tests -> test
| |
15 * This tests exercises bug 1719. An anti-aliased blurred path is rendered throu gh a soft clip. On | |
16 * the GPU a scratch texture was used to hold the original path mask as well as the blurred path | |
17 * result. The same texture is then incorrectly used to generate the soft clip m ask for the draw. | |
18 * Thus the same texture is used for both the blur mask and soft mask in a singl e draw. | |
19 * | |
20 * The correct image should look like a thin stroked round rect. | |
21 */ | |
22 class SkBug1719GM : public GM { | |
23 public: | |
24 SkBug1719GM() {} | |
25 | |
26 protected: | |
27 virtual SkString onShortName() SK_OVERRIDE { | |
28 return SkString("skbug1719"); | |
29 } | |
30 | |
31 virtual SkISize onISize() SK_OVERRIDE { | |
32 return make_isize(300, 100); | |
33 } | |
34 | |
35 virtual void onDrawBackground(SkCanvas* canvas) SK_OVERRIDE { | |
36 SkPaint bgPaint; | |
37 bgPaint.setColor(0xFF303030); | |
38 canvas->drawPaint(bgPaint); | |
39 } | |
40 | |
41 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { | |
42 canvas->translate(SkIntToScalar(-800), SkIntToScalar(-650)); | |
43 | |
44 // The data is lifted from an SKP that exhibited the bug. | |
45 | |
46 // This is a round rect. | |
47 SkPath clipPath; | |
48 clipPath.moveTo(832.f, 654.f); | |
49 clipPath.lineTo(1034.f, 654.f); | |
50 clipPath.cubicTo(1038.4183f, 654.f, 1042.f, 657.58173f, 1042.f, 662.f); | |
51 clipPath.lineTo(1042.f, 724.f); | |
52 clipPath.cubicTo(1042.f, 728.41827f, 1038.4183f, 732.f, 1034.f, 732.f); | |
53 clipPath.lineTo(832.f, 732.f); | |
54 clipPath.cubicTo(827.58173f, 732.f, 824.f, 728.41827f, 824.f, 724.f); | |
55 clipPath.lineTo(824.f, 662.f); | |
56 clipPath.cubicTo(824.f, 657.58173f, 827.58173f, 654.f, 832.f, 654.f); | |
57 clipPath.close(); | |
58 | |
59 // This is a round rect nested inside a rect. | |
60 SkPath drawPath; | |
61 drawPath.moveTo(823.f, 653.f); | |
62 drawPath.lineTo(1043.f, 653.f); | |
63 drawPath.lineTo(1043.f, 733.f); | |
64 drawPath.lineTo(823.f, 733.f); | |
65 drawPath.lineTo(823.f, 653.f); | |
66 drawPath.close(); | |
67 drawPath.moveTo(832.f, 654.f); | |
68 drawPath.lineTo(1034.f, 654.f); | |
69 drawPath.cubicTo(1038.4183f, 654.f, 1042.f, 657.58173f, 1042.f, 662.f); | |
70 drawPath.lineTo(1042.f, 724.f); | |
71 drawPath.cubicTo(1042.f, 728.41827f, 1038.4183f, 732.f, 1034.f, 732.f); | |
72 drawPath.lineTo(832.f, 732.f); | |
73 drawPath.cubicTo(827.58173f, 732.f, 824.f, 728.41827f, 824.f, 724.f); | |
74 drawPath.lineTo(824.f, 662.f); | |
75 drawPath.cubicTo(824.f, 657.58173f, 827.58173f, 654.f, 832.f, 654.f); | |
76 drawPath.close(); | |
77 drawPath.setFillType(SkPath::kEvenOdd_FillType); | |
78 | |
79 SkPaint paint; | |
80 paint.setAntiAlias(true); | |
81 paint.setColor(0xFF000000); | |
82 paint.setMaskFilter( | |
83 SkBlurMaskFilter::Create(SkBlurMaskFilter::kNormal_BlurStyle, | |
84 0.78867501f, | |
85 SkBlurMaskFilter::kHighQuality_BlurFlag))-> unref(); | |
86 paint.setColorFilter( | |
87 SkColorFilter::CreateModeFilter(0xBFFFFFFF, SkXfermode::kSrcIn_Mode) )->unref(); | |
88 | |
89 canvas->clipPath(clipPath, SkRegion::kIntersect_Op, true); | |
90 canvas->drawPath(drawPath, paint); | |
91 } | |
92 | |
93 private: | |
94 | |
95 typedef GM INHERITED; | |
96 }; | |
97 | |
98 ////////////////////////////////////////////////////////////////////////////// | |
99 | |
100 DEF_GM(return new SkBug1719GM;) | |
101 | |
102 } | |
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