1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <gtest/gtest.h>
18 #include <SkPath.h>
19 #include <SkRegion.h>
20
21 #include "ClipArea.h"
22
23 #include "Matrix.h"
24 #include "Rect.h"
25 #include "utils/LinearAllocator.h"
26
27 namespace android {
28 namespace uirenderer {
29
30 static Rect kViewportBounds(2048, 2048);
31
createClipArea()32 static ClipArea createClipArea() {
33 ClipArea area;
34 area.setViewportDimensions(kViewportBounds.getWidth(), kViewportBounds.getHeight());
35 return area;
36 }
37
TEST(TransformedRectangle,basics)38 TEST(TransformedRectangle, basics) {
39 Rect r(0, 0, 100, 100);
40 Matrix4 minus90;
41 minus90.loadRotate(-90);
42 minus90.mapRect(r);
43 Rect r2(20, 40, 120, 60);
44
45 Matrix4 m90;
46 m90.loadRotate(90);
47 TransformedRectangle tr(r, m90);
48 EXPECT_TRUE(tr.canSimplyIntersectWith(tr));
49
50 Matrix4 m0;
51 TransformedRectangle tr0(r2, m0);
52 EXPECT_FALSE(tr.canSimplyIntersectWith(tr0));
53
54 Matrix4 m45;
55 m45.loadRotate(45);
56 TransformedRectangle tr2(r, m45);
57 EXPECT_FALSE(tr2.canSimplyIntersectWith(tr));
58 }
59
TEST(RectangleList,basics)60 TEST(RectangleList, basics) {
61 RectangleList list;
62 EXPECT_TRUE(list.isEmpty());
63
64 Rect r(0, 0, 100, 100);
65 Matrix4 m45;
66 m45.loadRotate(45);
67 list.set(r, m45);
68 EXPECT_FALSE(list.isEmpty());
69
70 Rect r2(20, 20, 200, 200);
71 list.intersectWith(r2, m45);
72 EXPECT_FALSE(list.isEmpty());
73 EXPECT_EQ(1, list.getTransformedRectanglesCount());
74
75 Rect r3(20, 20, 200, 200);
76 Matrix4 m30;
77 m30.loadRotate(30);
78 list.intersectWith(r2, m30);
79 EXPECT_FALSE(list.isEmpty());
80 EXPECT_EQ(2, list.getTransformedRectanglesCount());
81
82 SkRegion clip;
83 clip.setRect(0, 0, 2000, 2000);
84 SkRegion rgn(list.convertToRegion(clip));
85 EXPECT_FALSE(rgn.isEmpty());
86 }
87
TEST(ClipArea,basics)88 TEST(ClipArea, basics) {
89 ClipArea area(createClipArea());
90 EXPECT_FALSE(area.isEmpty());
91 }
92
TEST(ClipArea,paths)93 TEST(ClipArea, paths) {
94 ClipArea area(createClipArea());
95 SkPath path;
96 SkScalar r = 100;
97 path.addCircle(r, r, r);
98 area.clipPathWithTransform(path, &Matrix4::identity(), SkRegion::kIntersect_Op);
99 EXPECT_FALSE(area.isEmpty());
100 EXPECT_FALSE(area.isSimple());
101 EXPECT_FALSE(area.isRectangleList());
102
103 Rect clipRect(area.getClipRect());
104 Rect expected(0, 0, r * 2, r * 2);
105 EXPECT_EQ(expected, clipRect);
106 SkRegion clipRegion(area.getClipRegion());
107 auto skRect(clipRegion.getBounds());
108 Rect regionBounds;
109 regionBounds.set(skRect);
110 EXPECT_EQ(expected, regionBounds);
111 }
112
TEST(ClipArea,replaceNegative)113 TEST(ClipArea, replaceNegative) {
114 ClipArea area(createClipArea());
115 area.setClip(0, 0, 100, 100);
116
117 Rect expected(-50, -50, 50, 50);
118 area.clipRectWithTransform(expected, &Matrix4::identity(), SkRegion::kReplace_Op);
119 EXPECT_EQ(expected, area.getClipRect());
120 }
121
TEST(ClipArea,serializeClip)122 TEST(ClipArea, serializeClip) {
123 ClipArea area(createClipArea());
124 LinearAllocator allocator;
125
126 // unset clip
127 EXPECT_EQ(nullptr, area.serializeClip(allocator));
128
129 // rect clip
130 area.setClip(0, 0, 200, 200);
131 {
132 auto serializedClip = area.serializeClip(allocator);
133 ASSERT_NE(nullptr, serializedClip);
134 ASSERT_EQ(ClipMode::Rectangle, serializedClip->mode);
135 ASSERT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
136 EXPECT_EQ(Rect(200, 200), serializedClip->rect);
137 EXPECT_EQ(serializedClip, area.serializeClip(allocator))
138 << "Requery of clip on unmodified ClipArea must return same pointer.";
139 }
140
141 // rect list
142 Matrix4 rotate;
143 rotate.loadRotate(5.0f);
144 area.clipRectWithTransform(Rect(50, 50, 150, 150), &rotate, SkRegion::kIntersect_Op);
145 {
146 auto serializedClip = area.serializeClip(allocator);
147 ASSERT_NE(nullptr, serializedClip);
148 ASSERT_EQ(ClipMode::RectangleList, serializedClip->mode);
149 ASSERT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
150 auto clipRectList = reinterpret_cast<const ClipRectList*>(serializedClip);
151 EXPECT_EQ(2, clipRectList->rectList.getTransformedRectanglesCount());
152 EXPECT_EQ(Rect(37, 54, 145, 163), clipRectList->rect);
153 EXPECT_EQ(serializedClip, area.serializeClip(allocator))
154 << "Requery of clip on unmodified ClipArea must return same pointer.";
155 }
156
157 // region
158 SkPath circlePath;
159 circlePath.addCircle(100, 100, 100);
160 area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kReplace_Op);
161 {
162 auto serializedClip = area.serializeClip(allocator);
163 ASSERT_NE(nullptr, serializedClip);
164 ASSERT_EQ(ClipMode::Region, serializedClip->mode);
165 ASSERT_TRUE(serializedClip->intersectWithRoot) << "Replace op, so expect intersectWithRoot";
166 auto clipRegion = reinterpret_cast<const ClipRegion*>(serializedClip);
167 EXPECT_EQ(SkIRect::MakeWH(200, 200), clipRegion->region.getBounds())
168 << "Clip region should be 200x200";
169 EXPECT_EQ(Rect(200, 200), clipRegion->rect);
170 EXPECT_EQ(serializedClip, area.serializeClip(allocator))
171 << "Requery of clip on unmodified ClipArea must return same pointer.";
172 }
173 }
174
TEST(ClipArea,serializeClip_pathIntersectWithRoot)175 TEST(ClipArea, serializeClip_pathIntersectWithRoot) {
176 ClipArea area(createClipArea());
177 LinearAllocator allocator;
178 SkPath circlePath;
179 circlePath.addCircle(100, 100, 100);
180 area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kIntersect_Op);
181
182 auto serializedClip = area.serializeClip(allocator);
183 ASSERT_NE(nullptr, serializedClip);
184 EXPECT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
185 }
186
TEST(ClipArea,serializeIntersectedClip)187 TEST(ClipArea, serializeIntersectedClip) {
188 ClipArea area(createClipArea());
189 LinearAllocator allocator;
190
191 // simple state;
192 EXPECT_EQ(nullptr, area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity()));
193 area.setClip(0, 0, 200, 200);
194 {
195 auto origRectClip = area.serializeClip(allocator);
196 ASSERT_NE(nullptr, origRectClip);
197 EXPECT_EQ(origRectClip, area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity()));
198 }
199
200 // rect
201 {
202 ClipRect recordedClip(Rect(100, 100));
203 Matrix4 translateScale;
204 translateScale.loadTranslate(100, 100, 0);
205 translateScale.scale(2, 3, 1);
206 auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
207 ASSERT_NE(nullptr, resolvedClip);
208 ASSERT_EQ(ClipMode::Rectangle, resolvedClip->mode);
209 EXPECT_EQ(Rect(100, 100, 200, 200), resolvedClip->rect);
210
211 EXPECT_EQ(resolvedClip, area.serializeIntersectedClip(allocator, &recordedClip, translateScale))
212 << "Must return previous serialization, since input is same";
213
214 ClipRect recordedClip2(Rect(100, 100));
215 EXPECT_NE(resolvedClip, area.serializeIntersectedClip(allocator, &recordedClip2, translateScale))
216 << "Shouldn't return previous serialization, since matrix location is different";
217 }
218
219 // rect list
220 Matrix4 rotate;
221 rotate.loadRotate(2.0f);
222 area.clipRectWithTransform(Rect(200, 200), &rotate, SkRegion::kIntersect_Op);
223 {
224 ClipRect recordedClip(Rect(100, 100));
225 auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, Matrix4::identity());
226 ASSERT_NE(nullptr, resolvedClip);
227 ASSERT_EQ(ClipMode::RectangleList, resolvedClip->mode);
228 auto clipRectList = reinterpret_cast<const ClipRectList*>(resolvedClip);
229 EXPECT_EQ(2, clipRectList->rectList.getTransformedRectanglesCount());
230 }
231
232 // region
233 SkPath circlePath;
234 circlePath.addCircle(100, 100, 100);
235 area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kReplace_Op);
236 {
237 SkPath ovalPath;
238 ovalPath.addOval(SkRect::MakeLTRB(50, 0, 150, 200));
239
240 ClipRegion recordedClip;
241 recordedClip.region.setPath(ovalPath, SkRegion(SkIRect::MakeWH(200, 200)));
242 recordedClip.rect = Rect(200, 200);
243
244 Matrix4 translate10x20;
245 translate10x20.loadTranslate(10, 20, 0);
246 auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip,
247 translate10x20); // Note: only translate for now, others not handled correctly
248 ASSERT_NE(nullptr, resolvedClip);
249 ASSERT_EQ(ClipMode::Region, resolvedClip->mode);
250 auto clipRegion = reinterpret_cast<const ClipRegion*>(resolvedClip);
251 EXPECT_EQ(SkIRect::MakeLTRB(60, 20, 160, 200), clipRegion->region.getBounds());
252 }
253 }
254
TEST(ClipArea,serializeIntersectedClip_snap)255 TEST(ClipArea, serializeIntersectedClip_snap) {
256 ClipArea area(createClipArea());
257 area.setClip(100.2, 100.4, 500.6, 500.8);
258 LinearAllocator allocator;
259
260 {
261 // no recorded clip case
262 auto resolvedClip = area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity());
263 EXPECT_EQ(Rect(100, 100, 501, 501), resolvedClip->rect);
264 }
265 {
266 // recorded clip case
267 ClipRect recordedClip(Rect(100.12, 100.74));
268 Matrix4 translateScale;
269 translateScale.loadTranslate(100, 100, 0);
270 translateScale.scale(2, 3, 1); // recorded clip will have non-int coords, even after transform
271 auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
272 ASSERT_NE(nullptr, resolvedClip);
273 EXPECT_EQ(ClipMode::Rectangle, resolvedClip->mode);
274 EXPECT_EQ(Rect(100, 100, 300, 402), resolvedClip->rect);
275 }
276 }
277
TEST(ClipArea,serializeIntersectedClip_scale)278 TEST(ClipArea, serializeIntersectedClip_scale) {
279 ClipArea area(createClipArea());
280 area.setClip(0, 0, 400, 400);
281 LinearAllocator allocator;
282
283 SkPath circlePath;
284 circlePath.addCircle(50, 50, 50);
285
286 ClipRegion recordedClip;
287 recordedClip.region.setPath(circlePath, SkRegion(SkIRect::MakeWH(100, 100)));
288 recordedClip.rect = Rect(100, 100);
289
290 Matrix4 translateScale;
291 translateScale.loadTranslate(100, 100, 0);
292 translateScale.scale(2, 2, 1);
293 auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
294
295 ASSERT_NE(nullptr, resolvedClip);
296 EXPECT_EQ(ClipMode::Region, resolvedClip->mode);
297 EXPECT_EQ(Rect(100, 100, 300, 300), resolvedClip->rect);
298 auto clipRegion = reinterpret_cast<const ClipRegion*>(resolvedClip);
299 EXPECT_EQ(SkIRect::MakeLTRB(100, 100, 300, 300), clipRegion->region.getBounds());
300 }
301
TEST(ClipArea,applyTransformToRegion_identity)302 TEST(ClipArea, applyTransformToRegion_identity) {
303 SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
304 ClipArea::applyTransformToRegion(Matrix4::identity(), ®ion);
305 EXPECT_TRUE(region.isRect());
306 EXPECT_EQ(SkIRect::MakeLTRB(1, 2, 3, 4), region.getBounds());
307 }
308
TEST(ClipArea,applyTransformToRegion_translate)309 TEST(ClipArea, applyTransformToRegion_translate) {
310 SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
311 Matrix4 transform;
312 transform.loadTranslate(10, 20, 0);
313 ClipArea::applyTransformToRegion(transform, ®ion);
314 EXPECT_TRUE(region.isRect());
315 EXPECT_EQ(SkIRect::MakeLTRB(11, 22, 13, 24), region.getBounds());
316 }
317
TEST(ClipArea,applyTransformToRegion_scale)318 TEST(ClipArea, applyTransformToRegion_scale) {
319 SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
320 Matrix4 transform;
321 transform.loadScale(2, 3, 1);
322 ClipArea::applyTransformToRegion(transform, ®ion);
323 EXPECT_TRUE(region.isRect());
324 EXPECT_EQ(SkIRect::MakeLTRB(2, 6, 6, 12), region.getBounds());
325 }
326
TEST(ClipArea,applyTransformToRegion_translateScale)327 TEST(ClipArea, applyTransformToRegion_translateScale) {
328 SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
329 Matrix4 transform;
330 transform.translate(10, 20);
331 transform.scale(2, 3, 1);
332 ClipArea::applyTransformToRegion(transform, ®ion);
333 EXPECT_TRUE(region.isRect());
334 EXPECT_EQ(SkIRect::MakeLTRB(12, 26, 16, 32), region.getBounds());
335 }
336
TEST(ClipArea,applyTransformToRegion_rotate90)337 TEST(ClipArea, applyTransformToRegion_rotate90) {
338 SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
339 Matrix4 transform;
340 transform.loadRotate(90);
341 ClipArea::applyTransformToRegion(transform, ®ion);
342 EXPECT_TRUE(region.isRect());
343 EXPECT_EQ(SkIRect::MakeLTRB(-4, 1, -2, 3), region.getBounds());
344 }
345
346 } // namespace uirenderer
347 } // namespace android
348