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Side by Side Diff: cc/resources/display_item_list_unittest.cc

Issue 1144693002: cc: Move files out of cc/resources/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: resources: android Created 5 years, 7 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "cc/resources/display_item_list.h"
6
7 #include <vector>
8
9 #include "cc/output/filter_operation.h"
10 #include "cc/output/filter_operations.h"
11 #include "cc/resources/clip_display_item.h"
12 #include "cc/resources/drawing_display_item.h"
13 #include "cc/resources/filter_display_item.h"
14 #include "cc/resources/transform_display_item.h"
15 #include "cc/test/skia_common.h"
16 #include "skia/ext/refptr.h"
17 #include "testing/gtest/include/gtest/gtest.h"
18 #include "third_party/skia/include/core/SkBitmap.h"
19 #include "third_party/skia/include/core/SkCanvas.h"
20 #include "third_party/skia/include/core/SkColor.h"
21 #include "third_party/skia/include/core/SkPictureRecorder.h"
22 #include "third_party/skia/include/effects/SkBitmapSource.h"
23 #include "third_party/skia/include/utils/SkPictureUtils.h"
24 #include "ui/gfx/geometry/rect_conversions.h"
25 #include "ui/gfx/skia_util.h"
26
27 namespace cc {
28
29 TEST(DisplayItemListTest, SingleDrawingItem) {
30 gfx::Rect layer_rect(100, 100);
31 SkPictureRecorder recorder;
32 skia::RefPtr<SkCanvas> canvas;
33 skia::RefPtr<SkPicture> picture;
34 SkPaint blue_paint;
35 blue_paint.setColor(SK_ColorBLUE);
36 SkPaint red_paint;
37 red_paint.setColor(SK_ColorRED);
38 unsigned char pixels[4 * 100 * 100] = {0};
39 const bool use_cached_picture = true;
40 scoped_refptr<DisplayItemList> list =
41 DisplayItemList::Create(layer_rect, use_cached_picture);
42
43 gfx::PointF offset(8.f, 9.f);
44 gfx::RectF recording_rect(offset, layer_rect.size());
45 canvas = skia::SharePtr(
46 recorder.beginRecording(gfx::RectFToSkRect(recording_rect)));
47 canvas->translate(offset.x(), offset.y());
48 canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint);
49 canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint);
50 picture = skia::AdoptRef(recorder.endRecordingAsPicture());
51 auto* item = list->CreateAndAppendItem<DrawingDisplayItem>();
52 item->SetNew(picture);
53 list->ProcessAppendedItems();
54 list->CreateAndCacheSkPicture();
55 DrawDisplayList(pixels, layer_rect, list);
56
57 SkBitmap expected_bitmap;
58 unsigned char expected_pixels[4 * 100 * 100] = {0};
59 SkImageInfo info =
60 SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
61 expected_bitmap.installPixels(info, expected_pixels, info.minRowBytes());
62 SkCanvas expected_canvas(expected_bitmap);
63 expected_canvas.clipRect(gfx::RectToSkRect(layer_rect));
64 expected_canvas.drawRectCoords(0.f + offset.x(), 0.f + offset.y(),
65 60.f + offset.x(), 60.f + offset.y(),
66 red_paint);
67 expected_canvas.drawRectCoords(50.f + offset.x(), 50.f + offset.y(),
68 75.f + offset.x(), 75.f + offset.y(),
69 blue_paint);
70
71 EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100));
72 }
73
74 TEST(DisplayItemListTest, ClipItem) {
75 gfx::Rect layer_rect(100, 100);
76 SkPictureRecorder recorder;
77 skia::RefPtr<SkCanvas> canvas;
78 skia::RefPtr<SkPicture> picture;
79 SkPaint blue_paint;
80 blue_paint.setColor(SK_ColorBLUE);
81 SkPaint red_paint;
82 red_paint.setColor(SK_ColorRED);
83 unsigned char pixels[4 * 100 * 100] = {0};
84 const bool use_cached_picture = true;
85 scoped_refptr<DisplayItemList> list =
86 DisplayItemList::Create(layer_rect, use_cached_picture);
87
88 gfx::PointF first_offset(8.f, 9.f);
89 gfx::RectF first_recording_rect(first_offset, layer_rect.size());
90 canvas = skia::SharePtr(
91 recorder.beginRecording(gfx::RectFToSkRect(first_recording_rect)));
92 canvas->translate(first_offset.x(), first_offset.y());
93 canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint);
94 picture = skia::AdoptRef(recorder.endRecordingAsPicture());
95 auto* item1 = list->CreateAndAppendItem<DrawingDisplayItem>();
96 item1->SetNew(picture.Pass());
97
98 gfx::Rect clip_rect(60, 60, 10, 10);
99 auto* item2 = list->CreateAndAppendItem<ClipDisplayItem>();
100 item2->SetNew(clip_rect, std::vector<SkRRect>());
101
102 gfx::PointF second_offset(2.f, 3.f);
103 gfx::RectF second_recording_rect(second_offset, layer_rect.size());
104 canvas = skia::SharePtr(
105 recorder.beginRecording(gfx::RectFToSkRect(second_recording_rect)));
106 canvas->translate(second_offset.x(), second_offset.y());
107 canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint);
108 picture = skia::AdoptRef(recorder.endRecordingAsPicture());
109 auto* item3 = list->CreateAndAppendItem<DrawingDisplayItem>();
110 item3->SetNew(picture.Pass());
111
112 list->CreateAndAppendItem<EndClipDisplayItem>();
113 list->ProcessAppendedItems();
114 list->CreateAndCacheSkPicture();
115
116 DrawDisplayList(pixels, layer_rect, list);
117
118 SkBitmap expected_bitmap;
119 unsigned char expected_pixels[4 * 100 * 100] = {0};
120 SkImageInfo info =
121 SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
122 expected_bitmap.installPixels(info, expected_pixels, info.minRowBytes());
123 SkCanvas expected_canvas(expected_bitmap);
124 expected_canvas.clipRect(gfx::RectToSkRect(layer_rect));
125 expected_canvas.drawRectCoords(0.f + first_offset.x(), 0.f + first_offset.y(),
126 60.f + first_offset.x(),
127 60.f + first_offset.y(), red_paint);
128 expected_canvas.clipRect(gfx::RectToSkRect(clip_rect));
129 expected_canvas.drawRectCoords(
130 50.f + second_offset.x(), 50.f + second_offset.y(),
131 75.f + second_offset.x(), 75.f + second_offset.y(), blue_paint);
132
133 EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100));
134 }
135
136 TEST(DisplayItemListTest, TransformItem) {
137 gfx::Rect layer_rect(100, 100);
138 SkPictureRecorder recorder;
139 skia::RefPtr<SkCanvas> canvas;
140 skia::RefPtr<SkPicture> picture;
141 SkPaint blue_paint;
142 blue_paint.setColor(SK_ColorBLUE);
143 SkPaint red_paint;
144 red_paint.setColor(SK_ColorRED);
145 unsigned char pixels[4 * 100 * 100] = {0};
146 const bool use_cached_picture = true;
147 scoped_refptr<DisplayItemList> list =
148 DisplayItemList::Create(layer_rect, use_cached_picture);
149
150 gfx::PointF first_offset(8.f, 9.f);
151 gfx::RectF first_recording_rect(first_offset, layer_rect.size());
152 canvas = skia::SharePtr(
153 recorder.beginRecording(gfx::RectFToSkRect(first_recording_rect)));
154 canvas->translate(first_offset.x(), first_offset.y());
155 canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint);
156 picture = skia::AdoptRef(recorder.endRecordingAsPicture());
157 auto* item1 = list->CreateAndAppendItem<DrawingDisplayItem>();
158 item1->SetNew(picture);
159
160 gfx::Transform transform;
161 transform.Rotate(45.0);
162 auto* item2 = list->CreateAndAppendItem<TransformDisplayItem>();
163 item2->SetNew(transform);
164
165 gfx::PointF second_offset(2.f, 3.f);
166 gfx::RectF second_recording_rect(second_offset, layer_rect.size());
167 canvas = skia::SharePtr(
168 recorder.beginRecording(gfx::RectFToSkRect(second_recording_rect)));
169 canvas->translate(second_offset.x(), second_offset.y());
170 canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint);
171 picture = skia::AdoptRef(recorder.endRecordingAsPicture());
172 auto* item3 = list->CreateAndAppendItem<DrawingDisplayItem>();
173 item3->SetNew(picture);
174
175 list->CreateAndAppendItem<EndTransformDisplayItem>();
176 list->ProcessAppendedItems();
177 list->CreateAndCacheSkPicture();
178
179 DrawDisplayList(pixels, layer_rect, list);
180
181 SkBitmap expected_bitmap;
182 unsigned char expected_pixels[4 * 100 * 100] = {0};
183 SkImageInfo info =
184 SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
185 expected_bitmap.installPixels(info, expected_pixels, info.minRowBytes());
186 SkCanvas expected_canvas(expected_bitmap);
187 expected_canvas.clipRect(gfx::RectToSkRect(layer_rect));
188 expected_canvas.drawRectCoords(0.f + first_offset.x(), 0.f + first_offset.y(),
189 60.f + first_offset.x(),
190 60.f + first_offset.y(), red_paint);
191 expected_canvas.setMatrix(transform.matrix());
192 expected_canvas.drawRectCoords(
193 50.f + second_offset.x(), 50.f + second_offset.y(),
194 75.f + second_offset.x(), 75.f + second_offset.y(), blue_paint);
195
196 EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100));
197 }
198
199 TEST(DisplayItemListTest, FilterItem) {
200 gfx::Rect layer_rect(100, 100);
201 FilterOperations filters;
202 unsigned char pixels[4 * 100 * 100] = {0};
203 const bool use_cached_picture = true;
204 scoped_refptr<DisplayItemList> list =
205 DisplayItemList::Create(layer_rect, use_cached_picture);
206
207 SkBitmap source_bitmap;
208 source_bitmap.allocN32Pixels(50, 50);
209 SkCanvas source_canvas(source_bitmap);
210 source_canvas.clear(SkColorSetRGB(128, 128, 128));
211
212 // For most SkImageFilters, the |dst| bounds computed by computeFastBounds are
213 // dependent on the provided |src| bounds. This means, for example, that
214 // translating |src| results in a corresponding translation of |dst|. But this
215 // is not the case for all SkImageFilters; for some of them (e.g.
216 // SkBitmapSource), the computation of |dst| in computeFastBounds doesn't
217 // involve |src| at all. Incorrectly assuming such a relationship (e.g. by
218 // translating |dst| after it is computed by computeFastBounds, rather than
219 // translating |src| before it provided to computedFastBounds) can cause
220 // incorrect clipping of filter output. To test for this, we include an
221 // SkBitmapSource filter in |filters|. Here, |src| is |filter_bounds|, defined
222 // below.
223 skia::RefPtr<SkImageFilter> image_filter =
224 skia::AdoptRef(SkBitmapSource::Create(source_bitmap));
225 filters.Append(FilterOperation::CreateReferenceFilter(image_filter));
226 filters.Append(FilterOperation::CreateBrightnessFilter(0.5f));
227 gfx::RectF filter_bounds(10.f, 10.f, 50.f, 50.f);
228 auto* item = list->CreateAndAppendItem<FilterDisplayItem>();
229 item->SetNew(filters, filter_bounds);
230 list->CreateAndAppendItem<EndFilterDisplayItem>();
231 list->ProcessAppendedItems();
232 list->CreateAndCacheSkPicture();
233
234 DrawDisplayList(pixels, layer_rect, list);
235
236 SkBitmap expected_bitmap;
237 unsigned char expected_pixels[4 * 100 * 100] = {0};
238 SkPaint paint;
239 paint.setColor(SkColorSetRGB(64, 64, 64));
240 SkImageInfo info =
241 SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
242 expected_bitmap.installPixels(info, expected_pixels, info.minRowBytes());
243 SkCanvas expected_canvas(expected_bitmap);
244 expected_canvas.drawRect(RectFToSkRect(filter_bounds), paint);
245
246 EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100));
247 }
248
249 TEST(DisplayItemListTest, CompactingItems) {
250 gfx::Rect layer_rect(100, 100);
251 SkPictureRecorder recorder;
252 skia::RefPtr<SkCanvas> canvas;
253 skia::RefPtr<SkPicture> picture;
254 SkPaint blue_paint;
255 blue_paint.setColor(SK_ColorBLUE);
256 SkPaint red_paint;
257 red_paint.setColor(SK_ColorRED);
258 unsigned char pixels[4 * 100 * 100] = {0};
259
260 gfx::PointF offset(8.f, 9.f);
261 gfx::RectF recording_rect(offset, layer_rect.size());
262
263 bool use_cached_picture = false;
264 scoped_refptr<DisplayItemList> list_without_caching =
265 DisplayItemList::Create(layer_rect, use_cached_picture);
266
267 canvas = skia::SharePtr(
268 recorder.beginRecording(gfx::RectFToSkRect(recording_rect)));
269 canvas->translate(offset.x(), offset.y());
270 canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint);
271 canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint);
272 picture = skia::AdoptRef(recorder.endRecordingAsPicture());
273 auto* item1 = list_without_caching->CreateAndAppendItem<DrawingDisplayItem>();
274 item1->SetNew(picture);
275 list_without_caching->ProcessAppendedItems();
276 DrawDisplayList(pixels, layer_rect, list_without_caching);
277
278 unsigned char expected_pixels[4 * 100 * 100] = {0};
279 use_cached_picture = true;
280 scoped_refptr<DisplayItemList> list_with_caching =
281 DisplayItemList::Create(layer_rect, use_cached_picture);
282 auto* item2 = list_with_caching->CreateAndAppendItem<DrawingDisplayItem>();
283 item2->SetNew(picture);
284 list_with_caching->ProcessAppendedItems();
285 list_with_caching->CreateAndCacheSkPicture();
286 DrawDisplayList(expected_pixels, layer_rect, list_with_caching);
287
288 EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100));
289 }
290
291 TEST(DisplayItemListTest, PictureMemoryUsage) {
292 scoped_refptr<DisplayItemList> list;
293 size_t memory_usage;
294
295 // Make an SkPicture whose size is known.
296 gfx::Rect layer_rect(100, 100);
297 SkPictureRecorder recorder;
298 SkPaint blue_paint;
299 blue_paint.setColor(SK_ColorBLUE);
300 SkCanvas* canvas = recorder.beginRecording(gfx::RectFToSkRect(layer_rect));
301 for (int i = 0; i < 100; i++)
302 canvas->drawPaint(blue_paint);
303 skia::RefPtr<SkPicture> picture =
304 skia::AdoptRef(recorder.endRecordingAsPicture());
305 size_t picture_size = SkPictureUtils::ApproximateBytesUsed(picture.get());
306 ASSERT_GE(picture_size, 100 * sizeof(SkPaint));
307 ASSERT_LE(picture_size, 200 * sizeof(SkPaint));
308
309 // Using a cached picture, we should get about the right size.
310 list = DisplayItemList::Create(layer_rect, true);
311 auto* item = list->CreateAndAppendItem<DrawingDisplayItem>();
312 item->SetNew(picture);
313 list->ProcessAppendedItems();
314 list->CreateAndCacheSkPicture();
315 memory_usage = list->PictureMemoryUsage();
316 EXPECT_GE(memory_usage, picture_size);
317 EXPECT_LE(memory_usage, 2 * picture_size);
318
319 // Using no cached picture, we should still get the right size.
320 list = DisplayItemList::Create(layer_rect, false);
321 item = list->CreateAndAppendItem<DrawingDisplayItem>();
322 item->SetNew(picture);
323 list->ProcessAppendedItems();
324 memory_usage = list->PictureMemoryUsage();
325 EXPECT_GE(memory_usage, picture_size);
326 EXPECT_LE(memory_usage, 2 * picture_size);
327
328 // To avoid double counting, we expect zero size to be computed if both the
329 // picture and items are retained (currently this only happens due to certain
330 // categories being traced).
331 list = new DisplayItemList(layer_rect, true, true);
332 item = list->CreateAndAppendItem<DrawingDisplayItem>();
333 item->SetNew(picture);
334 list->ProcessAppendedItems();
335 list->CreateAndCacheSkPicture();
336 memory_usage = list->PictureMemoryUsage();
337 EXPECT_EQ(static_cast<size_t>(0), memory_usage);
338 }
339
340 } // namespace cc
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