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SkPathRangeIterTest.cpp File Reference
#include "include/core/SkPath.h"
#include "include/core/SkPathTypes.h"
#include "include/core/SkPoint.h"
#include "src/base/SkRandom.h"
#include "src/core/SkPathPriv.h"
#include "tests/Test.h"

Go to the source code of this file.

Functions

SkPoint next_point (SkRandom &rand)
 
 DEF_TEST (SkPath_RangeIter, r)
 

Function Documentation

◆ DEF_TEST()

DEF_TEST ( SkPath_RangeIter  ,
r   
)

Definition at line 17 of file SkPathRangeIterTest.cpp.

17 {
18 enum class Verb {
19 kMove = (int)SkPathVerb::kMove,
20 kLine = (int)SkPathVerb::kLine,
21 kQuad = (int)SkPathVerb::kQuad,
22 kConic = (int)SkPathVerb::kConic,
23 kCubic = (int)SkPathVerb::kCubic,
24 kClose = (int)SkPathVerb::kClose,
25 kImplicitMove
26 };
27
28 Verb verbs[] = {
29 Verb::kImplicitMove,
30 Verb::kLine,
31 Verb::kConic,
32 Verb::kClose,
33 Verb::kImplicitMove,
34 Verb::kCubic,
35 Verb::kMove,
36 Verb::kConic,
37 Verb::kLine,
38 Verb::kClose,
39 Verb::kMove,
40 Verb::kMove
41 };
42
43 class : SkRandom {
44 public:
45 SkPoint p() { return {this->SkRandom::nextF(), this->SkRandom::nextF()}; }
46 float w() { return this->SkRandom::nextF(); }
47 } genData, testData;
48
49 for (int i = 0; i < 10; ++i) {
50 if (genData.p() != testData.p() || genData.w() != testData.w()) {
51 ERRORF(r, "genData and testData not in sync.");
52 return;
53 }
54 }
55
56 // Build the path.
57 SkPath path;
58 for (Verb verb : verbs) {
59 switch (verb) {
60 case Verb::kImplicitMove:
61 break;
62 case Verb::kMove:
63 path.moveTo(genData.p());
64 break;
65 case Verb::kLine:
66 path.lineTo(genData.p());
67 break;
68 case Verb::kQuad: {
69 auto a = genData.p();
70 auto b = genData.p();
71 path.quadTo(a, b);
72 break;
73 }
74 case Verb::kCubic: {
75 auto a = genData.p();
76 auto b = genData.p();
77 auto c = genData.p();
78 path.cubicTo(a, b, c);
79 break;
80 }
81 case Verb::kConic: {
82 auto a = genData.p();
83 auto b = genData.p();
84 path.conicTo(a, b, genData.w());
85 break;
86 }
87 case Verb::kClose:
88 path.close();
89 break;
90 }
91 }
92
93 // Verify sure the RangeIter works as expected.
94 SkPathPriv::Iterate iterate(path);
95 auto iter = iterate.begin();
96 SkPoint startPt = {0,0};
97 SkPoint lastPt = {0,0};
98 for (Verb verb : verbs) {
99 auto [pathVerb, pathPts, pathWt] = *iter++;
100 switch (verb) {
101 case Verb::kImplicitMove:
102 REPORTER_ASSERT(r, pathPts[0] == startPt);
103 lastPt = pathPts[0];
104 break;
105 case Verb::kMove:
106 REPORTER_ASSERT(r, pathPts[0] == testData.p());
107 startPt = lastPt = pathPts[0];
108 break;
109 case Verb::kLine:
110 REPORTER_ASSERT(r, pathPts[0] == lastPt);
111 REPORTER_ASSERT(r, pathPts[1] == testData.p());
112 lastPt = pathPts[1];
113 break;
114 case Verb::kQuad:
115 REPORTER_ASSERT(r, pathPts[0] == lastPt);
116 REPORTER_ASSERT(r, pathPts[1] == testData.p());
117 REPORTER_ASSERT(r, pathPts[2] == testData.p());
118 lastPt = pathPts[2];
119 break;
120 case Verb::kCubic:
121 REPORTER_ASSERT(r, pathPts[0] == lastPt);
122 REPORTER_ASSERT(r, pathPts[1] == testData.p());
123 REPORTER_ASSERT(r, pathPts[2] == testData.p());
124 REPORTER_ASSERT(r, pathPts[3] == testData.p());
125 lastPt = pathPts[3];
126 break;
127 case Verb::kConic:
128 REPORTER_ASSERT(r, pathPts[0] == lastPt);
129 REPORTER_ASSERT(r, pathPts[1] == testData.p());
130 REPORTER_ASSERT(r, pathPts[2] == testData.p());
131 REPORTER_ASSERT(r, *pathWt == testData.w());
132 lastPt = pathPts[2];
133 break;
134 case Verb::kClose:
135 REPORTER_ASSERT(r, pathPts[0] == lastPt);
136 break;
137 }
138 }
139 REPORTER_ASSERT(r, iter == iterate.end());
140}
kClose
static constexpr SkScalar kClose
Definition GrAAConvexTessellator.cpp:28
SkPathVerb::kClose
@ kClose
SkPath::RawIter returns 0 points.
SkPathVerb::kCubic
@ kCubic
SkPath::RawIter returns 4 points.
SkPathVerb::kConic
@ kConic
SkPath::RawIter returns 3 points + 1 weight.
SkPathVerb::kQuad
@ kQuad
SkPath::RawIter returns 3 points.
SkPathVerb::kMove
@ kMove
SkPath::RawIter returns 1 point.
SkPathVerb::kLine
@ kLine
SkPath::RawIter returns 2 points.
REPORTER_ASSERT
#define REPORTER_ASSERT(r, cond,...)
Definition Test.h:286
ERRORF
#define ERRORF(r,...)
Definition Test.h:293
int
Type::kYUV Type::kRGBA() int(0.7 *637)
SkRandom::nextF
float nextF()
Definition SkRandom.h:55
kMove
@ kMove
Definition embedder.h:983
b
static bool b
Definition ffi_native_test_module.c:74
a
struct MyStruct a[10]
dart_profiler_symbols.p
p
Definition dart_profiler_symbols.py:55
flutter::path
DEF_SWITCHES_START aot vmservice shared library Name of the *so containing AOT compiled Dart assets for launching the service isolate vm snapshot The VM snapshot data that will be memory mapped as read only SnapshotAssetPath must be present isolate snapshot The isolate snapshot data that will be memory mapped as read only SnapshotAssetPath must be present cache dir path
Definition switches.h:57
w
SkScalar w
Definition pictureshadertile.cpp:30

◆ next_point()

SkPoint next_point ( SkRandom &  rand)

Definition at line 15 of file SkPathRangeIterTest.cpp.

15{ return {rand.nextF(), rand.nextF()}; }
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