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 "SkTypes.h"
9
10 #if SK_SUPPORT_GPU
11
12 #include "GrContext.h"
13 #include "GrPath.h"
14 #include "GrStrokeInfo.h"
15 #include "SkBitmap.h"
16 #include "SkCanvas.h"
17 #include "SkColor.h"
18 #include "SkPaint.h"
19 #include "SkPath.h"
20 #include "SkDashPathEffect.h"
21 #include "SkRRect.h"
22 #include "SkRect.h"
23 #include "SkSurface.h"
24 #include "Test.h"
25
26 #include <initializer_list>
27
test_drawPathEmpty(skiatest::Reporter *,SkCanvas * canvas)28 static void test_drawPathEmpty(skiatest::Reporter*, SkCanvas* canvas) {
29 // Filling an empty path should not crash.
30 SkPaint paint;
31 SkRect emptyRect = SkRect::MakeEmpty();
32 canvas->drawRect(emptyRect, paint);
33 canvas->drawPath(SkPath(), paint);
34 canvas->drawOval(emptyRect, paint);
35 canvas->drawRect(emptyRect, paint);
36 canvas->drawRRect(SkRRect::MakeRect(emptyRect), paint);
37
38 // Stroking an empty path should not crash.
39 paint.setAntiAlias(true);
40 paint.setStyle(SkPaint::kStroke_Style);
41 paint.setColor(SK_ColorGRAY);
42 paint.setStrokeWidth(SkIntToScalar(20));
43 paint.setStrokeJoin(SkPaint::kRound_Join);
44 canvas->drawRect(emptyRect, paint);
45 canvas->drawPath(SkPath(), paint);
46 canvas->drawOval(emptyRect, paint);
47 canvas->drawRect(emptyRect, paint);
48 canvas->drawRRect(SkRRect::MakeRect(emptyRect), paint);
49 }
50
fill_and_stroke(SkCanvas * canvas,const SkPath & p1,const SkPath & p2,SkPathEffect * effect)51 static void fill_and_stroke(SkCanvas* canvas, const SkPath& p1, const SkPath& p2,
52 SkPathEffect* effect) {
53 SkPaint paint;
54 paint.setAntiAlias(true);
55 paint.setPathEffect(effect);
56
57 canvas->drawPath(p1, paint);
58 canvas->drawPath(p2, paint);
59
60 paint.setStyle(SkPaint::kStroke_Style);
61 canvas->drawPath(p1, paint);
62 canvas->drawPath(p2, paint);
63 }
64
test_drawSameRectOvals(skiatest::Reporter *,SkCanvas * canvas)65 static void test_drawSameRectOvals(skiatest::Reporter*, SkCanvas* canvas) {
66 // Drawing ovals with similar bounds but different points order should not crash.
67
68 SkPath oval1, oval2;
69 const SkRect rect = SkRect::MakeWH(100, 50);
70 oval1.addOval(rect, SkPath::kCW_Direction);
71 oval2.addOval(rect, SkPath::kCCW_Direction);
72
73 fill_and_stroke(canvas, oval1, oval2, nullptr);
74
75 const SkScalar intervals[] = { 1, 1 };
76 SkAutoTUnref<SkPathEffect> dashEffect(SkDashPathEffect::Create(intervals, 2, 0));
77 fill_and_stroke(canvas, oval1, oval2, dashEffect);
78 }
79
DEF_GPUTEST_FOR_ALL_CONTEXTS(GpuDrawPath,reporter,context)80 DEF_GPUTEST_FOR_ALL_CONTEXTS(GpuDrawPath, reporter, context) {
81 for (auto& test_func : { &test_drawPathEmpty, &test_drawSameRectOvals }) {
82 for (auto& sampleCount : {0, 4, 16}) {
83 SkImageInfo info = SkImageInfo::MakeN32Premul(255, 255);
84 SkAutoTUnref<SkSurface> surface(
85 SkSurface::NewRenderTarget(context, SkBudgeted::kNo, info,
86 sampleCount, nullptr));
87 if (!surface) {
88 continue;
89 }
90 test_func(reporter, surface->getCanvas());
91 }
92 }
93 }
94
95 DEF_GPUTEST(GrPathKeys, reporter, /*factory*/) {
96 // Keys should not ignore conic weights.
97 SkPath path1, path2;
98 path1.setIsVolatile(true);
99 path2.setIsVolatile(true);
100 SkPoint p0 = SkPoint::Make(100, 0);
101 SkPoint p1 = SkPoint::Make(100, 100);
102
103 path1.conicTo(p0, p1, .5f);
104 path2.conicTo(p0, p1, .7f);
105
106 bool isVolatile;
107 GrUniqueKey key1, key2;
108 GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle);
109 GrPath::ComputeKey(path1, stroke, &key1, &isVolatile);
110 GrPath::ComputeKey(path2, stroke, &key2, &isVolatile);
111 REPORTER_ASSERT(reporter, key1 != key2);
112 }
113
114 #endif
115