Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(82)

Issues Search
    My Issues | Starred     Open | Closed | All

Side by Side Diff: tests/TileGridTest.cpp

Issue 845623002: Remove SkTileGrid (except for TileGridInfo). (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: kill gridSupported Created 5 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « tests/RecordingXfermodeTest.cpp ('k') | tools/PictureRenderer.h » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
1 /*
2 * Copyright 2012 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 "SkCanvas.h"
9 #include "SkPictureRecorder.h"
10 #include "SkTileGrid.h"
11 #include "Test.h"
12
13 enum Tile {
14 kTopLeft_Tile = 0x1,
15 kTopRight_Tile = 0x2,
16 kBottomLeft_Tile = 0x4,
17 kBottomRight_Tile = 0x8,
18
19 kAll_Tile = kTopLeft_Tile | kTopRight_Tile | kBottomLeft_Tile | kBottomRight _Tile,
20 };
21
22 class MockCanvas : public SkCanvas {
23 public:
24 MockCanvas(const SkBitmap& bm) : SkCanvas(bm) {}
25
26 void onDrawRect(const SkRect& rect, const SkPaint&) SK_OVERRIDE {
27 // This capture occurs before quick reject.
28 fRects.push(rect);
29 }
30
31 SkTDArray<SkRect> fRects;
32 };
33
34 static void verify_tile_hits(skiatest::Reporter* reporter, SkRect rect,
35 uint32_t tileMask, int borderPixels = 0) {
36 SkTileGridFactory::TileGridInfo info;
37 info.fMargin.set(borderPixels, borderPixels);
38 info.fOffset.setZero();
39 info.fTileInterval.set(10 - 2 * borderPixels, 10 - 2 * borderPixels);
40
41 SkAutoTMalloc<SkRect> rects(1);
42 rects[0] = rect;
43
44 SkTileGrid grid(2, 2, info);
45 grid.insert(&rects, 1);
46 REPORTER_ASSERT(reporter, grid.tileCount(0, 0) ==
47 ((tileMask & kTopLeft_Tile)? 1 : 0));
48 REPORTER_ASSERT(reporter, grid.tileCount(1, 0) ==
49 ((tileMask & kTopRight_Tile)? 1 : 0));
50 REPORTER_ASSERT(reporter, grid.tileCount(0, 1) ==
51 ((tileMask & kBottomLeft_Tile)? 1 : 0));
52 REPORTER_ASSERT(reporter, grid.tileCount(1, 1) ==
53 ((tileMask & kBottomRight_Tile)? 1 : 0));
54 }
55
56 DEF_TEST(TileGrid_UnalignedQuery, reporter) {
57 // Use SkTileGridPicture to generate a SkTileGrid with a helper
58 SkTileGridFactory::TileGridInfo info;
59 info.fMargin.setEmpty();
60 info.fOffset.setZero();
61 info.fTileInterval.set(10, 10);
62 SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
63 SkIntToScalar(8), SkIntToScalar(8));
64 SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(11), SkIntToScalar(11),
65 SkIntToScalar(1), SkIntToScalar(1));
66 SkTileGridFactory factory(info);
67 SkPictureRecorder recorder;
68 SkCanvas* canvas = recorder.beginRecording(20, 20, &factory, 0);
69 SkPaint paint;
70 canvas->drawRect(rect1, paint);
71 canvas->drawRect(rect2, paint);
72 SkAutoTUnref<SkPicture> picture(recorder.endRecording());
73
74 SkBitmap store;
75 store.allocN32Pixels(1, 1);
76
77 // Test parts of top-left tile
78 {
79 MockCanvas mockCanvas(store);
80 picture->playback(&mockCanvas);
81 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
82 REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
83 }
84 {
85 MockCanvas mockCanvas(store);
86 mockCanvas.translate(-7.99f, -7.99f);
87 picture->playback(&mockCanvas);
88 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
89 REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
90 }
91 // Corner overlap
92 {
93 MockCanvas mockCanvas(store);
94 mockCanvas.translate(-9.5f, -9.5f);
95 picture->playback(&mockCanvas);
96 REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count());
97 REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
98 REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[1]);
99 }
100 // Intersect bottom right tile, but does not overlap rect 2
101 {
102 MockCanvas mockCanvas(store);
103 mockCanvas.translate(-16.0f, -16.0f);
104 picture->playback(&mockCanvas);
105 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
106 REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
107 }
108 // Out of bounds queries, snap to border tiles
109 {
110 MockCanvas mockCanvas(store);
111 mockCanvas.translate(2.0f, 0.0f);
112 picture->playback(&mockCanvas);
113 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
114 REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
115 }
116 {
117 MockCanvas mockCanvas(store);
118 mockCanvas.translate(0.0f, 2.0f);
119 picture->playback(&mockCanvas);
120 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
121 REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
122 }
123 {
124 MockCanvas mockCanvas(store);
125 mockCanvas.translate(-22.0f, -16.0f);
126 picture->playback(&mockCanvas);
127 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
128 REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
129 }
130 {
131 MockCanvas mockCanvas(store);
132 mockCanvas.translate(-16.0f, -22.0f);
133 picture->playback(&mockCanvas);
134 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
135 REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
136 }
137 }
138
139 DEF_TEST(TileGrid_OverlapOffsetQueryAlignment, reporter) {
140 // Use SkTileGridPicture to generate a SkTileGrid with a helper
141 SkTileGridFactory::TileGridInfo info;
142 info.fMargin.set(1, 1);
143 info.fOffset.set(-1, -1);
144 info.fTileInterval.set(8, 8);
145
146 // rect landing entirely in top left tile
147 SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
148 SkIntToScalar(1), SkIntToScalar(1));
149 // rect landing entirely in center tile
150 SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(12), SkIntToScalar(12),
151 SkIntToScalar(1), SkIntToScalar(1));
152 // rect landing entirely in bottomright tile
153 SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(19), SkIntToScalar(19),
154 SkIntToScalar(1), SkIntToScalar(1));
155 SkTileGridFactory factory(info);
156 SkPictureRecorder recorder;
157 SkCanvas* canvas = recorder.beginRecording(20, 20, &factory, 0);
158 SkPaint paint;
159 canvas->drawRect(rect1, paint);
160 canvas->drawRect(rect2, paint);
161 canvas->drawRect(rect3, paint);
162 SkAutoTUnref<SkPicture> picture(recorder.endRecording());
163
164 SkBitmap tileBitmap;
165 tileBitmap.allocN32Pixels(10, 10);
166 SkBitmap moreThanATileBitmap;
167 moreThanATileBitmap.allocN32Pixels(11, 11);
168 SkBitmap tinyBitmap;
169 tinyBitmap.allocN32Pixels(2, 2);
170 // Test parts of top-left tile
171 {
172 // The offset should cancel the top and left borders of the top left til e
173 // So a look-up at interval 0-10 should be grid aligned,
174 MockCanvas mockCanvas(tileBitmap);
175 picture->playback(&mockCanvas);
176 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
177 REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
178 }
179 {
180 // Encroaching border by one pixel
181 MockCanvas mockCanvas(moreThanATileBitmap);
182 picture->playback(&mockCanvas);
183 REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count());
184 REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
185 REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[1]);
186 }
187 {
188 // Tile stride is 8 (tileWidth - 2 * border pixels
189 // so translating by 8, should make query grid-aligned
190 // with middle tile.
191 MockCanvas mockCanvas(tileBitmap);
192 mockCanvas.translate(SkIntToScalar(-8), SkIntToScalar(-8));
193 picture->playback(&mockCanvas);
194 REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
195 REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
196 }
197 {
198 MockCanvas mockCanvas(tileBitmap);
199 mockCanvas.translate(-7.9f, -7.9f);
200 picture->playback(&mockCanvas);
201 REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count());
202 REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
203 REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[1]);
204 }
205 {
206 MockCanvas mockCanvas(tileBitmap);
207 mockCanvas.translate(-8.1f, -8.1f);
208 picture->playback(&mockCanvas);
209 REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count());
210 REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
211 REPORTER_ASSERT(reporter, rect3 == mockCanvas.fRects[1]);
212 }
213 {
214 // Regression test for crbug.com/234688
215 // Once the 2x2 device region is inset by margin, it yields an empty
216 // adjusted region, sitting right on top of the tile boundary.
217 MockCanvas mockCanvas(tinyBitmap);
218 mockCanvas.translate(-8.0f, -8.0f);
219 picture->playback(&mockCanvas);
220 // This test passes by not asserting. We do not validate the rects recor ded
221 // because the result is numerically unstable (floating point equality).
222 // The content of any one of the four tiles of the tilegrid would be a v alid
223 // result since any bbox that covers the center point of the canvas will be
224 // recorded in all four tiles.
225 }
226 }
227
228 DEF_TEST(TileGrid, reporter) {
229 // Out of bounds
230 verify_tile_hits(reporter, SkRect::MakeXYWH(30, 0, 1, 1), 0);
231 verify_tile_hits(reporter, SkRect::MakeXYWH(0, 30, 1, 1), 0);
232 verify_tile_hits(reporter, SkRect::MakeXYWH(-10, 0, 1, 1), 0);
233 verify_tile_hits(reporter, SkRect::MakeXYWH(0, -10, 1, 1), 0);
234
235 // Dilation for AA consideration
236 verify_tile_hits(reporter, SkRect::MakeXYWH(0, 0, 9, 9), kTopLeft_Tile);
237 verify_tile_hits(reporter, SkRect::MakeXYWH(0, 0, 10, 10), kAll_Tile);
238 verify_tile_hits(reporter, SkRect::MakeXYWH(9, 9, 1, 1), kAll_Tile);
239 verify_tile_hits(reporter, SkRect::MakeXYWH(10, 10, 1, 1), kAll_Tile);
240 verify_tile_hits(reporter, SkRect::MakeXYWH(11, 11, 1, 1), kBottomRight_Tile );
241
242 // BorderPixels
243 verify_tile_hits(reporter, SkRect::MakeXYWH(0, 0, 6, 6), kTopLeft_Tile, 1);
244 verify_tile_hits(reporter, SkRect::MakeXYWH(0, 0, 7, 7), kAll_Tile, 1);
245 verify_tile_hits(reporter, SkRect::MakeXYWH(9, 9, 1, 1), kAll_Tile, 1);
246 verify_tile_hits(reporter, SkRect::MakeXYWH(10, 10, 1, 1), kBottomRight_Tile , 1);
247 verify_tile_hits(reporter, SkRect::MakeXYWH(17, 17, 1, 1), kBottomRight_Tile , 1);
248
249 // BBoxes that overlap tiles
250 verify_tile_hits(reporter, SkRect::MakeXYWH(5, 5, 10, 1), kTopLeft_Tile | kTopRight_Tile);
251 verify_tile_hits(reporter, SkRect::MakeXYWH(5, 5, 1, 10), kTopLeft_Tile | kBottomLeft_Tile);
252 verify_tile_hits(reporter, SkRect::MakeXYWH(5, 5, 10, 10), kAll_Tile);
253 verify_tile_hits(reporter, SkRect::MakeXYWH(-10, -10, 40, 40),kAll_Tile);
254 }
OLDNEW
« no previous file with comments | « tests/RecordingXfermodeTest.cpp ('k') | tools/PictureRenderer.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698