aboutsummaryrefslogtreecommitdiffhomepage
path: root/tests/TessellatingPathRendererTests.cpp
blob: 712a20fe10686f20467392392e477894ca93668b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
/*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "SkPath.h"

#if SK_SUPPORT_GPU
#include "GrContextFactory.h"
#include "GrTessellatingPathRenderer.h"
#include "GrTest.h"
#include "Test.h"

/*
 * These tests pass by not crashing, hanging or asserting in Debug.
 */

// Tests active edges made inactive by splitting.
// Also tests active edge list forced into an invalid ordering by
// splitting (mopped up in cleanup_active_edges()).
static SkPath create_path_0() {
    SkPath path;
    path.moveTo(229.127044677734375f,  67.34100341796875f);
    path.lineTo(187.8097381591796875f, -6.7729740142822265625f);
    path.lineTo(171.411407470703125f,  50.94266510009765625f);
    path.lineTo(245.5253753662109375f,  9.6253643035888671875f);
    path.moveTo(208.4683990478515625f, 30.284009933471679688f);
    path.lineTo(171.411407470703125f,  50.94266510009765625f);
    path.lineTo(187.8097381591796875f, -6.7729740142822265625f);
    return path;
}

// Intersections which fall exactly on the current vertex, and require
// a restart of the intersection checking.
static SkPath create_path_1() {
    SkPath path;
    path.moveTo(314.483551025390625f, 486.246002197265625f);
    path.lineTo(385.41949462890625f,  532.8087158203125f);
    path.lineTo(373.232879638671875f, 474.05938720703125f);
    path.lineTo(326.670166015625f,    544.995361328125f);
    path.moveTo(349.951507568359375f, 509.52734375f);
    path.lineTo(373.232879638671875f, 474.05938720703125f);
    path.lineTo(385.41949462890625f,  532.8087158203125f);
    return path;
}

// Tests active edges which are removed by splitting.
static SkPath create_path_2() {
    SkPath path;
    path.moveTo(343.107391357421875f, 613.62176513671875f);
    path.lineTo(426.632415771484375f, 628.5740966796875f);
    path.lineTo(392.3460693359375f,   579.33544921875f);
    path.lineTo(377.39373779296875f,  662.86041259765625f);
    path.moveTo(384.869873046875f,    621.097900390625f);
    path.lineTo(392.3460693359375f,   579.33544921875f);
    path.lineTo(426.632415771484375f, 628.5740966796875f);
    return path;
}

// Collinear edges merged in set_top().
// Also, an intersection between left and right enclosing edges which
// falls above the current vertex.
static SkPath create_path_3() {
    SkPath path;
    path.moveTo(545.95751953125f,    791.69854736328125f);
    path.lineTo(612.05816650390625f, 738.494140625f);
    path.lineTo(552.4056396484375f,  732.0460205078125f);
    path.lineTo(605.61004638671875f, 798.14666748046875f);
    path.moveTo(579.00787353515625f, 765.0963134765625f);
    path.lineTo(552.4056396484375f,  732.0460205078125f);
    path.lineTo(612.05816650390625f, 738.494140625f);
    return path;
}

// Tests active edges which are made inactive by set_top().
static SkPath create_path_4() {
    SkPath path;
    path.moveTo(819.2725830078125f,  751.77447509765625f);
    path.lineTo(820.70904541015625f, 666.933837890625f);
    path.lineTo(777.57049560546875f, 708.63592529296875f);
    path.lineTo(862.4111328125f,     710.0723876953125f);
    path.moveTo(819.99078369140625f, 709.3541259765625f);
    path.lineTo(777.57049560546875f, 708.63592529296875f);
    path.lineTo(820.70904541015625f, 666.933837890625f);
    return path;
}

static SkPath create_path_5() {
    SkPath path;
    path.moveTo(823.33209228515625f, 749.052734375f);
    path.lineTo(823.494873046875f,   664.20013427734375f);
    path.lineTo(780.9871826171875f,  706.5450439453125f);
    path.lineTo(865.8397216796875f,  706.70782470703125f);
    path.moveTo(823.4134521484375f,  706.6263427734375f);
    path.lineTo(780.9871826171875f,  706.5450439453125f);
    path.lineTo(823.494873046875f,   664.20013427734375f);
    return path;
}

static SkPath create_path_6() {
    SkPath path;
    path.moveTo(954.862548828125f,   562.8349609375f);
    path.lineTo(899.32818603515625f, 498.679443359375f);
    path.lineTo(895.017578125f,      558.52435302734375f);
    path.lineTo(959.17315673828125f, 502.990081787109375f);
    path.moveTo(927.0953369140625f,  530.7572021484375f);
    path.lineTo(895.017578125f,      558.52435302734375f);
    path.lineTo(899.32818603515625f, 498.679443359375f);
    return path;
}

static SkPath create_path_7() {
    SkPath path;
    path.moveTo(958.5330810546875f,  547.35516357421875f);
    path.lineTo(899.93109130859375f, 485.989013671875f);
    path.lineTo(898.54901123046875f, 545.97308349609375f);
    path.lineTo(959.9151611328125f,  487.37109375f);
    path.moveTo(929.2320556640625f,  516.67205810546875f);
    path.lineTo(898.54901123046875f, 545.97308349609375f);
    path.lineTo(899.93109130859375f, 485.989013671875f);
    return path;
}

static SkPath create_path_8() {
    SkPath path;
    path.moveTo(389.8609619140625f,   369.326873779296875f);
    path.lineTo(470.6290283203125f,   395.33697509765625f);
    path.lineTo(443.250030517578125f, 341.9478759765625f);
    path.lineTo(417.239959716796875f, 422.7159423828125f);
    path.moveTo(430.244964599609375f, 382.3319091796875f);
    path.lineTo(443.250030517578125f, 341.9478759765625f);
    path.lineTo(470.6290283203125f,   395.33697509765625f);
    return path;
}

static SkPath create_path_9() {
    SkPath path;
    path.moveTo(20, 20);
    path.lineTo(50, 80);
    path.lineTo(20, 80);
    path.moveTo(80, 50);
    path.lineTo(50, 50);
    path.lineTo(20, 50);
    return path;
}

static SkPath create_path_10() {
    SkPath path;
    path.moveTo(257.19439697265625f, 320.876617431640625f);
    path.lineTo(190.113037109375f,   320.58978271484375f);
    path.lineTo(203.64404296875f,    293.8145751953125f);
    path.moveTo(203.357177734375f,   360.896026611328125f);
    path.lineTo(216.88824462890625f, 334.120819091796875f);
    path.lineTo(230.41925048828125f, 307.345611572265625f);
    return path;
}

// A degenerate segments case, where both upper and lower segments of
// a split edge must remain active.
static SkPath create_path_11() {
    SkPath path;
    path.moveTo(231.9331207275390625f, 306.2012939453125f);
    path.lineTo(191.4859161376953125f, 306.04547119140625f);
    path.lineTo(231.0659332275390625f, 300.2642822265625f);
    path.moveTo(189.946807861328125f,  302.072265625f);
    path.lineTo(179.79705810546875f,   294.859771728515625f);
    path.lineTo(191.0016021728515625f, 296.165679931640625f);
    path.moveTo(150.8942108154296875f, 304.900146484375f);
    path.lineTo(179.708892822265625f,  297.849029541015625f);
    path.lineTo(190.4742279052734375f, 299.11895751953125f);
    return path;
}

// Handle the case where edge.dist(edge.fTop) != 0.0.
static SkPath create_path_12() {
    SkPath path;
    path.moveTo(                  0.0f,  400.0f);
    path.lineTo(                138.0f,  202.0f);
    path.lineTo(                  0.0f,  202.0f);
    path.moveTo( 12.62693023681640625f,  250.57464599609375f);
    path.lineTo(  8.13896942138671875f,  254.556884765625f);
    path.lineTo(-18.15641021728515625f,  220.40203857421875f);
    path.lineTo(-15.986493110656738281f, 219.6513519287109375f);
    path.moveTo( 36.931194305419921875f, 282.485504150390625f);
    path.lineTo( 15.617521286010742188f, 261.2901611328125f);
    path.lineTo( 10.3829498291015625f,   252.565765380859375f);
    path.lineTo(-16.165292739868164062f, 222.646026611328125f);
    return path;
}

// A degenerate segments case which exercises inactive edges being
// made active by splitting.
static SkPath create_path_13() {
    SkPath path;
    path.moveTo(690.62127685546875f, 509.25555419921875f);
    path.lineTo(99.336181640625f,    511.71405029296875f);
    path.lineTo(708.362548828125f,   512.4349365234375f);
    path.lineTo(729.9940185546875f,  516.3114013671875f);
    path.lineTo(738.708984375f,      518.76995849609375f);
    path.lineTo(678.3463134765625f,  510.0819091796875f);
    path.lineTo(681.21795654296875f, 504.81378173828125f);
    path.moveTo(758.52764892578125f, 521.55963134765625f);
    path.lineTo(719.1549072265625f,  514.50372314453125f);
    path.lineTo(689.59063720703125f, 512.0628662109375f);
    path.lineTo(679.78216552734375f, 507.447845458984375f);
    return path;
}

// Tests vertices which become "orphaned" (ie., no connected edges)
// after simplification.
static SkPath create_path_14() {
    SkPath path;
    path.moveTo(217.326019287109375f, 166.4752960205078125f);
    path.lineTo(226.279266357421875f, 170.929473876953125f);
    path.lineTo(234.3973388671875f,   177.0623626708984375f);
    path.lineTo(262.0921630859375f,   188.746124267578125f);
    path.moveTo(196.23638916015625f,  174.0722198486328125f);
    path.lineTo(416.15277099609375f,  180.138214111328125f);
    path.lineTo(192.651947021484375f, 304.0228271484375f);
    return path;
}

static SkPath create_path_15() {
    SkPath path;
    path.moveTo(    0.0f,   0.0f);
    path.lineTo(10000.0f,   0.0f);
    path.lineTo(    0.0f,  -1.0f);
    path.lineTo(10000.0f,   0.000001f);
    path.lineTo(    0.0f, -30.0f);
    return path;
}

static void test_path(GrDrawTarget* dt, GrRenderTarget* rt, const SkPath& path) {
    GrTessellatingPathRenderer tess;
    GrPipelineBuilder pipelineBuilder;
    pipelineBuilder.setRenderTarget(rt);
    SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle);
    tess.drawPath(dt, &pipelineBuilder, SK_ColorWHITE, SkMatrix::I(), path, stroke, false);
}

DEF_GPUTEST(TessellatingPathRendererTests, reporter, factory) {
    GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0));
    if (NULL == context) {
        return;
    }
    GrSurfaceDesc desc;
    desc.fFlags = kRenderTarget_GrSurfaceFlag;
    desc.fWidth = 800;
    desc.fHeight = 800;
    desc.fConfig = kSkia8888_GrPixelConfig;
    desc.fOrigin = kTopLeft_GrSurfaceOrigin;
    SkAutoTUnref<GrTexture> texture(
        context->refScratchTexture(desc, GrContext::kExact_ScratchTexMatch)
    );
    GrTestTarget tt;
    context->getTestTarget(&tt);
    GrRenderTarget* rt = texture->asRenderTarget();
    GrDrawTarget* dt = tt.target();

    test_path(dt, rt, create_path_0());
    test_path(dt, rt, create_path_1());
    test_path(dt, rt, create_path_2());
    test_path(dt, rt, create_path_3());
    test_path(dt, rt, create_path_4());
    test_path(dt, rt, create_path_5());
    test_path(dt, rt, create_path_6());
    test_path(dt, rt, create_path_7());
    test_path(dt, rt, create_path_8());
    test_path(dt, rt, create_path_9());
    test_path(dt, rt, create_path_10());
    test_path(dt, rt, create_path_11());
    test_path(dt, rt, create_path_12());
    test_path(dt, rt, create_path_13());
    test_path(dt, rt, create_path_14());
    test_path(dt, rt, create_path_15());
}
#endif