| Flutter Impeller |

aiks_dl_basic_unittests.cc
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1 // Copyright 2013 The Flutter 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 "display_list/display_list.h"
6 #include "display_list/dl_sampling_options.h"
7 #include "display_list/dl_tile_mode.h"
8 #include "display_list/effects/dl_color_filter.h"
9 #include "display_list/effects/dl_color_source.h"
10 #include "display_list/effects/dl_image_filter.h"
11 #include "display_list/effects/dl_mask_filter.h"
12 #include "flutter/impeller/display_list/aiks_unittests.h"
13
14 #include "flutter/display_list/dl_blend_mode.h"
15 #include "flutter/display_list/dl_builder.h"
16 #include "flutter/display_list/dl_color.h"
17 #include "flutter/display_list/dl_paint.h"
18 #include "flutter/display_list/geometry/dl_path_builder.h"
19 #include "flutter/impeller/display_list/dl_image_impeller.h"
20 #include "flutter/impeller/geometry/scalar.h"
21 #include "flutter/testing/display_list_testing.h"
22 #include "flutter/testing/testing.h"
23 #include "impeller/playground/widgets.h"
24
25 namespace impeller {
26 namespace testing {
27
28 using namespace flutter;
29
30 TEST_P(AiksTest, CanRenderColoredRect) {
31 DisplayListBuilder builder;
32 DlPaint paint;
33 paint.setColor(DlColor::kBlue());
34 builder.DrawPath(DlPath::MakeRectXYWH(100.0f, 100.0f, 100.0f, 100.0f), paint);
35 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
36 }
37
38 namespace {
39 using DrawRectProc =
40 std::function<void(DisplayListBuilder&, const DlRect&, const DlPaint&)>;
41
42 sk_sp<DisplayList> MakeWideStrokedRects(Point scale,
43 const DrawRectProc& draw_rect) {
44 DisplayListBuilder builder;
45 builder.Scale(scale.x, scale.y);
46 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
47
48 DlPaint paint;
49 paint.setColor(DlColor::kBlue().withAlphaF(0.5));
50 paint.setDrawStyle(DlDrawStyle::kStroke);
51 paint.setStrokeWidth(30.0f);
52
53 // Each of these 3 sets of rects includes (with different join types):
54 // - One rectangle with a gap in the middle
55 // - One rectangle with no gap because it is too narrow
56 // - One rectangle with no gap because it is too short
57 paint.setStrokeJoin(DlStrokeJoin::kBevel);
58 draw_rect(builder, DlRect::MakeXYWH(100.0f, 100.0f, 100.0f, 100.0f), paint);
59 draw_rect(builder, DlRect::MakeXYWH(250.0f, 100.0f, 10.0f, 100.0f), paint);
60 draw_rect(builder, DlRect::MakeXYWH(100.0f, 250.0f, 100.0f, 10.0f), paint);
61
62 paint.setStrokeJoin(DlStrokeJoin::kRound);
63 draw_rect(builder, DlRect::MakeXYWH(350.0f, 100.0f, 100.0f, 100.0f), paint);
64 draw_rect(builder, DlRect::MakeXYWH(500.0f, 100.0f, 10.0f, 100.0f), paint);
65 draw_rect(builder, DlRect::MakeXYWH(350.0f, 250.0f, 100.0f, 10.0f), paint);
66
67 paint.setStrokeJoin(DlStrokeJoin::kMiter);
68 draw_rect(builder, DlRect::MakeXYWH(600.0f, 100.0f, 100.0f, 100.0f), paint);
69 draw_rect(builder, DlRect::MakeXYWH(750.0f, 100.0f, 10.0f, 100.0f), paint);
70 draw_rect(builder, DlRect::MakeXYWH(600.0f, 250.0f, 100.0f, 10.0f), paint);
71
72 // And now draw 3 rectangles with a stroke width so large that that it
73 // overlaps in the middle in both directions (horizontal/vertical).
74 paint.setStrokeWidth(110.0f);
75
76 paint.setStrokeJoin(DlStrokeJoin::kBevel);
77 draw_rect(builder, DlRect::MakeXYWH(100.0f, 400.0f, 100.0f, 100.0f), paint);
78
79 paint.setStrokeJoin(DlStrokeJoin::kRound);
80 draw_rect(builder, DlRect::MakeXYWH(350.0f, 400.0f, 100.0f, 100.0f), paint);
81
82 paint.setStrokeJoin(DlStrokeJoin::kMiter);
83 draw_rect(builder, DlRect::MakeXYWH(600.0f, 400.0f, 100.0f, 100.0f), paint);
84
85 return builder.Build();
86 }
87 } // namespace
88
89 TEST_P(AiksTest, CanRenderWideStrokedRectWithoutOverlap) {
90 ASSERT_TRUE(OpenPlaygroundHere(MakeWideStrokedRects(
91 GetContentScale(), [](DisplayListBuilder& builder, const DlRect& rect,
92 const DlPaint& paint) {
93 // Draw the rect directly
94 builder.DrawRect(rect, paint);
95 })));
96 }
97
98 TEST_P(AiksTest, CanRenderWideStrokedRectPathWithoutOverlap) {
99 ASSERT_TRUE(OpenPlaygroundHere(MakeWideStrokedRects(
100 GetContentScale(), [](DisplayListBuilder& builder, const DlRect& rect,
101 const DlPaint& paint) {
102 // Draw the rect as a Path
103 builder.DrawPath(DlPath::MakeRect(rect), paint);
104 })));
105 }
106
107 TEST_P(AiksTest, CanRenderImage) {
108 DisplayListBuilder builder;
109 DlPaint paint;
110 paint.setColor(DlColor::kRed());
111 auto image = DlImageImpeller::Make(CreateTextureForFixture("kalimba.jpg"));
112 builder.DrawImage(image, DlPoint(100.0, 100.0),
113 DlImageSampling::kNearestNeighbor, &paint);
114 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
115 }
116
117 TEST_P(AiksTest, CanRenderInvertedImageWithColorFilter) {
118 DisplayListBuilder builder;
119 DlPaint paint;
120 paint.setColor(DlColor::kRed());
121 paint.setColorFilter(
122 DlColorFilter::MakeBlend(DlColor::kYellow(), DlBlendMode::kSrcOver));
123 paint.setInvertColors(true);
124 auto image = DlImageImpeller::Make(CreateTextureForFixture("kalimba.jpg"));
125
126 builder.DrawImage(image, DlPoint(100.0, 100.0),
127 DlImageSampling::kNearestNeighbor, &paint);
128 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
129 }
130
131 TEST_P(AiksTest, CanRenderColorFilterWithInvertColors) {
132 DisplayListBuilder builder;
133 DlPaint paint;
134 paint.setColor(DlColor::kRed());
135 paint.setColorFilter(
136 DlColorFilter::MakeBlend(DlColor::kYellow(), DlBlendMode::kSrcOver));
137 paint.setInvertColors(true);
138
139 builder.DrawRect(DlRect::MakeLTRB(0, 0, 100, 100), paint);
140 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
141 }
142
143 TEST_P(AiksTest, CanRenderColorFilterWithInvertColorsDrawPaint) {
144 DisplayListBuilder builder;
145 DlPaint paint;
146 paint.setColor(DlColor::kRed());
147 paint.setColorFilter(
148 DlColorFilter::MakeBlend(DlColor::kYellow(), DlBlendMode::kSrcOver));
149 paint.setInvertColors(true);
150
151 builder.DrawPaint(paint);
152 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
153 }
154
155 namespace {
156 bool GenerateMipmap(const std::shared_ptr<Context>& context,
157 std::shared_ptr<Texture> texture,
158 std::string_view label) {
159 auto buffer = context->CreateCommandBuffer();
160 if (!buffer) {
161 return false;
162 }
163 auto pass = buffer->CreateBlitPass();
164 if (!pass) {
165 return false;
166 }
167 pass->GenerateMipmap(std::move(texture), label);
168
169 pass->EncodeCommands();
170 return context->GetCommandQueue()->Submit({buffer}).ok();
171 }
172
173 void CanRenderTiledTexture(AiksTest* aiks_test,
174 DlTileMode tile_mode,
175 Matrix local_matrix = {}) {
176 auto context = aiks_test->GetContext();
177 ASSERT_TRUE(context);
178 auto texture = aiks_test->CreateTextureForFixture("table_mountain_nx.png",
179 /*enable_mipmapping=*/true);
180 GenerateMipmap(context, texture, "table_mountain_nx");
181 auto image = DlImageImpeller::Make(texture);
182 auto color_source = DlColorSource::MakeImage(
183 image, tile_mode, tile_mode, DlImageSampling::kNearestNeighbor,
184 &local_matrix);
185
186 DisplayListBuilder builder;
187 DlPaint paint;
188 paint.setColor(DlColor::kWhite());
189 paint.setColorSource(color_source);
190
191 builder.Scale(aiks_test->GetContentScale().x, aiks_test->GetContentScale().y);
192 builder.Translate(100.0f, 100.0f);
193 builder.DrawRect(DlRect::MakeXYWH(0, 0, 600, 600), paint);
194
195 // Should not change the image.
196 constexpr auto stroke_width = 64;
197 paint.setDrawStyle(DlDrawStyle::kStroke);
198 paint.setStrokeWidth(stroke_width);
199 if (tile_mode == DlTileMode::kDecal) {
200 builder.DrawRect(DlRect::MakeXYWH(stroke_width, stroke_width, 600, 600),
201 paint);
202 } else {
203 builder.DrawRect(DlRect::MakeXYWH(0, 0, 600, 600), paint);
204 }
205
206 {
207 // Should not change the image.
208 DlPathBuilder path_builder;
209 path_builder.AddCircle(DlPoint(150, 150), 150);
210 path_builder.AddRoundRect(
211 RoundRect::MakeRectXY(DlRect::MakeLTRB(300, 300, 600, 600), 10, 10));
212 DlPath path = path_builder.TakePath();
213
214 // Make sure path cannot be simplified...
215 EXPECT_FALSE(path.IsRect(nullptr));
216 EXPECT_FALSE(path.IsOval(nullptr));
217 EXPECT_FALSE(path.IsRoundRect(nullptr));
218
219 // Make sure path will not trigger the optimal convex code
220 EXPECT_FALSE(path.IsConvex());
221
222 paint.setDrawStyle(DlDrawStyle::kFill);
223 builder.DrawPath(path, paint);
224 }
225
226 {
227 // Should not change the image. Tests the Convex short-cut code.
228
229 // To avoid simplification, construct an explicit circle using conics.
230 constexpr float kConicWeight = 0.707106781f; // sqrt(2)/2
231 const DlPath path = DlPathBuilder()
232 .MoveTo({150, 300})
233 .ConicCurveTo({300, 300}, {300, 450}, kConicWeight)
234 .ConicCurveTo({300, 600}, {150, 600}, kConicWeight)
235 .ConicCurveTo({0, 600}, {0, 450}, kConicWeight)
236 .ConicCurveTo({0, 300}, {150, 300}, kConicWeight)
237 .Close()
238 .TakePath();
239
240 // Make sure path cannot be simplified...
241 EXPECT_FALSE(path.IsRect(nullptr));
242 EXPECT_FALSE(path.IsOval(nullptr));
243 EXPECT_FALSE(path.IsRoundRect(nullptr));
244
245 // But check that we will trigger the optimal convex code
246 EXPECT_TRUE(path.IsConvex());
247
248 paint.setDrawStyle(DlDrawStyle::kFill);
249 builder.DrawPath(path, paint);
250 }
251
252 ASSERT_TRUE(aiks_test->OpenPlaygroundHere(builder.Build()));
253 }
254 } // namespace
255
256 TEST_P(AiksTest, CanRenderTiledTextureClamp) {
257 CanRenderTiledTexture(this, DlTileMode::kClamp);
258 }
259
260 TEST_P(AiksTest, CanRenderTiledTextureRepeat) {
261 CanRenderTiledTexture(this, DlTileMode::kRepeat);
262 }
263
264 TEST_P(AiksTest, CanRenderTiledTextureMirror) {
265 CanRenderTiledTexture(this, DlTileMode::kMirror);
266 }
267
268 TEST_P(AiksTest, CanRenderTiledTextureDecal) {
269 CanRenderTiledTexture(this, DlTileMode::kDecal);
270 }
271
272 TEST_P(AiksTest, CanRenderTiledTextureClampWithTranslate) {
273 CanRenderTiledTexture(this, DlTileMode::kClamp,
274 Matrix::MakeTranslation({172.f, 172.f, 0.f}));
275 }
276
277 TEST_P(AiksTest, CanRenderImageRect) {
278 DisplayListBuilder builder;
279 auto image = DlImageImpeller::Make(CreateTextureForFixture("kalimba.jpg"));
280
281 DlISize image_half_size =
282 DlISize(image->GetSize().width * 0.5f, image->GetSize().height * 0.5f);
283
284 // Render the bottom right quarter of the source image in a stretched rect.
285 auto source_rect = DlRect::MakeSize(image_half_size);
286 source_rect =
287 source_rect.Shift(image_half_size.width, image_half_size.height);
288
289 builder.DrawImageRect(image, source_rect,
290 DlRect::MakeXYWH(100, 100, 600, 600),
291 DlImageSampling::kNearestNeighbor);
292 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
293 }
294
295 TEST_P(AiksTest, DrawImageRectSrcOutsideBounds) {
296 DisplayListBuilder builder;
297 auto image = DlImageImpeller::Make(CreateTextureForFixture("kalimba.jpg"));
298
299 // Use a source rect that is partially outside the bounds of the image.
300 auto source_rect = DlRect::MakeXYWH(
301 image->GetSize().width * 0.25f, image->GetSize().height * 0.4f,
302 image->GetSize().width, image->GetSize().height);
303
304 auto dest_rect = DlRect::MakeXYWH(100, 100, 600, 600);
305
306 DlPaint paint;
307 paint.setColor(DlColor::kMidGrey());
308 builder.DrawRect(dest_rect, paint);
309
310 builder.DrawImageRect(image, source_rect, dest_rect,
311 DlImageSampling::kNearestNeighbor);
312 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
313 }
314
315 TEST_P(AiksTest, CanRenderSimpleClips) {
316 DisplayListBuilder builder;
317 builder.Scale(GetContentScale().x, GetContentScale().y);
318 DlPaint paint;
319
320 paint.setColor(DlColor::kWhite());
321 builder.DrawPaint(paint);
322
323 auto draw = [&builder](const DlPaint& paint, Scalar x, Scalar y) {
324 builder.Save();
325 builder.Translate(x, y);
326 {
327 builder.Save();
328 builder.ClipRect(DlRect::MakeLTRB(50, 50, 150, 150));
329 builder.DrawPaint(paint);
330 builder.Restore();
331 }
332 {
333 builder.Save();
334 builder.ClipOval(DlRect::MakeLTRB(200, 50, 300, 150));
335 builder.DrawPaint(paint);
336 builder.Restore();
337 }
338 {
339 builder.Save();
340 builder.ClipRoundRect(
341 DlRoundRect::MakeRectXY(DlRect::MakeLTRB(50, 200, 150, 300), 20, 20));
342 builder.DrawPaint(paint);
343 builder.Restore();
344 }
345 {
346 builder.Save();
347 builder.ClipRoundRect(DlRoundRect::MakeRectXY(
348 DlRect::MakeLTRB(200, 230, 300, 270), 20, 20));
349 builder.DrawPaint(paint);
350 builder.Restore();
351 }
352 {
353 builder.Save();
354 builder.ClipRoundRect(DlRoundRect::MakeRectXY(
355 DlRect::MakeLTRB(230, 200, 270, 300), 20, 20));
356 builder.DrawPaint(paint);
357 builder.Restore();
358 }
359 builder.Restore();
360 };
361
362 paint.setColor(DlColor::kBlue());
363 draw(paint, 0, 0);
364
365 DlColor gradient_colors[7] = {
366 DlColor::RGBA(0x1f / 255.0, 0.0, 0x5c / 255.0, 1.0),
367 DlColor::RGBA(0x5b / 255.0, 0.0, 0x60 / 255.0, 1.0),
368 DlColor::RGBA(0x87 / 255.0, 0x01 / 255.0, 0x60 / 255.0, 1.0),
369 DlColor::RGBA(0xac / 255.0, 0x25 / 255.0, 0x53 / 255.0, 1.0),
370 DlColor::RGBA(0xe1 / 255.0, 0x6b / 255.0, 0x5c / 255.0, 1.0),
371 DlColor::RGBA(0xf3 / 255.0, 0x90 / 255.0, 0x60 / 255.0, 1.0),
372 DlColor::RGBA(0xff / 255.0, 0xb5 / 255.0, 0x6b / 250.0, 1.0),
373 };
374 Scalar stops[7] = {
375 0.0,
376 (1.0 / 6.0) * 1,
377 (1.0 / 6.0) * 2,
378 (1.0 / 6.0) * 3,
379 (1.0 / 6.0) * 4,
380 (1.0 / 6.0) * 5,
381 1.0,
382 };
383 auto texture = CreateTextureForFixture("airplane.jpg",
384 /*enable_mipmapping=*/true);
385 auto image = DlImageImpeller::Make(texture);
386
387 paint.setColorSource(DlColorSource::MakeRadial(
388 DlPoint(500, 600), 75, 7, gradient_colors, stops, DlTileMode::kMirror));
389 draw(paint, 0, 300);
390
391 paint.setColorSource(
392 DlColorSource::MakeImage(image, DlTileMode::kRepeat, DlTileMode::kRepeat,
393 DlImageSampling::kNearestNeighbor));
394 draw(paint, 300, 0);
395
396 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
397 }
398
399 TEST_P(AiksTest, CanSaveLayerStandalone) {
400 DisplayListBuilder builder;
401
402 DlPaint red;
403 red.setColor(DlColor::kRed());
404
405 DlPaint alpha;
406 alpha.setColor(DlColor::kRed().modulateOpacity(0.5));
407
408 builder.SaveLayer(std::nullopt, &alpha);
409
410 builder.DrawCircle(DlPoint(125, 125), 125, red);
411
412 builder.Restore();
413
414 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
415 }
416
417 TEST_P(AiksTest, CanRenderDifferentShapesWithSameColorSource) {
418 DisplayListBuilder builder;
419 DlPaint paint;
420
421 DlColor colors[2] = {
422 DlColor::RGBA(0.9568, 0.2627, 0.2118, 1.0),
423 DlColor::RGBA(0.1294, 0.5882, 0.9529, 1.0),
424 };
425 DlScalar stops[2] = {
426 0.0,
427 1.0,
428 };
429
430 paint.setColorSource(DlColorSource::MakeLinear(
431 /*start_point=*/DlPoint(0, 0), //
432 /*end_point=*/DlPoint(100, 100), //
433 /*stop_count=*/2, //
434 /*colors=*/colors, //
435 /*stops=*/stops, //
436 /*tile_mode=*/DlTileMode::kRepeat //
437 ));
438
439 builder.Save();
440 builder.Translate(100, 100);
441 builder.DrawRect(DlRect::MakeXYWH(0, 0, 200, 200), paint);
442 builder.Restore();
443
444 builder.Save();
445 builder.Translate(100, 400);
446 builder.DrawCircle(DlPoint(100, 100), 100, paint);
447 builder.Restore();
448 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
449 }
450
451 TEST_P(AiksTest, CanRenderRoundedRectWithNonUniformRadii) {
452 DisplayListBuilder builder;
453 DlPaint paint;
454 paint.setColor(DlColor::kRed());
455
456 RoundingRadii radii = {
457 .top_left = DlSize(50, 25),
458 .top_right = DlSize(25, 50),
459 .bottom_left = DlSize(25, 50),
460 .bottom_right = DlSize(50, 25),
461 };
462 DlRoundRect rrect =
463 DlRoundRect::MakeRectRadii(DlRect::MakeXYWH(100, 100, 500, 500), radii);
464
465 builder.DrawRoundRect(rrect, paint);
466
467 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
468 }
469
470 TEST_P(AiksTest, CanDrawPaint) {
471 auto medium_turquoise =
472 DlColor::RGBA(72.0f / 255.0f, 209.0f / 255.0f, 204.0f / 255.0f, 1.0f);
473
474 DisplayListBuilder builder;
475 builder.Scale(0.2, 0.2);
476 builder.DrawPaint(DlPaint().setColor(medium_turquoise));
477 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
478 }
479
480 TEST_P(AiksTest, CanDrawPaintMultipleTimes) {
481 auto medium_turquoise =
482 DlColor::RGBA(72.0f / 255.0f, 209.0f / 255.0f, 204.0f / 255.0f, 1.0f);
483 auto orange_red =
484 DlColor::RGBA(255.0f / 255.0f, 69.0f / 255.0f, 0.0f / 255.0f, 1.0f);
485
486 DisplayListBuilder builder;
487 builder.Scale(0.2, 0.2);
488 builder.DrawPaint(DlPaint().setColor(medium_turquoise));
489 builder.DrawPaint(DlPaint().setColor(orange_red.modulateOpacity(0.5f)));
490 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
491 }
492
493 TEST_P(AiksTest, StrokedRectsRenderCorrectly) {
494 DisplayListBuilder builder;
495 builder.Scale(GetContentScale().x, GetContentScale().y);
496
497 DlPaint paint;
498 paint.setColor(DlColor::kPurple());
499 paint.setDrawStyle(DlDrawStyle::kStroke);
500 paint.setStrokeWidth(20.0f);
501
502 DlPaint thin_paint = paint;
503 thin_paint.setColor(DlColor::kYellow());
504 thin_paint.setStrokeWidth(0.0f);
505
506 DlRect rect = DlRect::MakeLTRB(10, 10, 90, 90);
507 DlRect thin_tall_rect = DlRect::MakeLTRB(120, 10, 120, 90);
508 DlRect thin_wide_rect = DlRect::MakeLTRB(10, 120, 90, 120);
509 DlRect empty_rect = DlRect::MakeLTRB(120, 120, 120, 120);
510
511 // We draw the following sets of rectangles:
512 //
513 // A E X
514 // X
515 // B F X
516 // X
517 // C D G H X
518 //
519 // Purple A,B,C,D are all drawn with stroke width 20 (non-overflowing).
520 // Each of those sets has 4 rectangles of dimension 80x80, 80x0, 0x80,
521 // and 0,0 to demonstrate the basic behavior and also the behavior of
522 // empty dimensions.
523 //
524 // Blue E,F,G,H are the same 80x80 rectangles, but with an overflowing
525 // stroke width of 120 to show the behavior with degenerately large
526 // stroke widths.
527 //
528 // A,E are drawn with Bevel joins.
529 // B,F are drawn with Round joins.
530 // C,G are drawn with Miter joins and a large enough miter limit.
531 // D,H are drawn with Miter joins and a too small miter limit (== Bevel).
532 //
533 // All orange X rectangles are drawn with round joins and increasing stroke
534 // widths to demonstrate fidelity of the rounding code at various arc sizes.
535 // These X rectangles also help test that the variable sizing estimates in
536 // the round join code are accurate.
537
538 // rects (A)
539 paint.setStrokeJoin(DlStrokeJoin::kBevel);
540 builder.DrawRect(rect.Shift({100, 100}), paint);
541 builder.DrawRect(rect.Shift({100, 100}), thin_paint);
542 builder.DrawRect(thin_tall_rect.Shift({100, 100}), paint);
543 builder.DrawRect(thin_tall_rect.Shift({100, 100}), thin_paint);
544 builder.DrawRect(thin_wide_rect.Shift({100, 100}), paint);
545 builder.DrawRect(thin_wide_rect.Shift({100, 100}), thin_paint);
546 builder.DrawRect(empty_rect.Shift({100, 100}), paint);
547 builder.DrawRect(empty_rect.Shift({100, 100}), thin_paint);
548
549 // rects (B)
550 paint.setStrokeJoin(DlStrokeJoin::kRound);
551 builder.DrawRect(rect.Shift({100, 300}), paint);
552 builder.DrawRect(rect.Shift({100, 300}), thin_paint);
553 builder.DrawRect(thin_tall_rect.Shift({100, 300}), paint);
554 builder.DrawRect(thin_tall_rect.Shift({100, 300}), thin_paint);
555 builder.DrawRect(thin_wide_rect.Shift({100, 300}), paint);
556 builder.DrawRect(thin_wide_rect.Shift({100, 300}), thin_paint);
557 builder.DrawRect(empty_rect.Shift({100, 300}), paint);
558 builder.DrawRect(empty_rect.Shift({100, 300}), thin_paint);
559
560 // rects (C)
561 paint.setStrokeJoin(DlStrokeJoin::kMiter);
562 paint.setStrokeMiter(kSqrt2 + flutter::kEhCloseEnough);
563 builder.DrawRect(rect.Shift({100, 500}), paint);
564 builder.DrawRect(rect.Shift({100, 500}), thin_paint);
565 builder.DrawRect(thin_tall_rect.Shift({100, 500}), paint);
566 builder.DrawRect(thin_tall_rect.Shift({100, 500}), thin_paint);
567 builder.DrawRect(thin_wide_rect.Shift({100, 500}), paint);
568 builder.DrawRect(thin_wide_rect.Shift({100, 500}), thin_paint);
569 builder.DrawRect(empty_rect.Shift({100, 500}), paint);
570 builder.DrawRect(empty_rect.Shift({100, 500}), thin_paint);
571
572 // rects (D)
573 paint.setStrokeJoin(DlStrokeJoin::kMiter);
574 paint.setStrokeMiter(kSqrt2 - flutter::kEhCloseEnough);
575 builder.DrawRect(rect.Shift({300, 500}), paint);
576 builder.DrawRect(rect.Shift({300, 500}), thin_paint);
577 builder.DrawRect(thin_tall_rect.Shift({300, 500}), paint);
578 builder.DrawRect(thin_tall_rect.Shift({300, 500}), thin_paint);
579 builder.DrawRect(thin_wide_rect.Shift({300, 500}), paint);
580 builder.DrawRect(thin_wide_rect.Shift({300, 500}), thin_paint);
581 builder.DrawRect(empty_rect.Shift({300, 500}), paint);
582 builder.DrawRect(empty_rect.Shift({300, 500}), thin_paint);
583
584 paint.setStrokeWidth(120.0f);
585 paint.setColor(DlColor::kBlue());
586 rect = rect.Expand(-20);
587
588 // rect (E)
589 paint.setStrokeJoin(DlStrokeJoin::kBevel);
590 builder.DrawRect(rect.Shift({500, 100}), paint);
591 builder.DrawRect(rect.Shift({500, 100}), thin_paint);
592
593 // rect (F)
594 paint.setStrokeJoin(DlStrokeJoin::kRound);
595 builder.DrawRect(rect.Shift({500, 300}), paint);
596 builder.DrawRect(rect.Shift({500, 300}), thin_paint);
597
598 // rect (G)
599 paint.setStrokeJoin(DlStrokeJoin::kMiter);
600 paint.setStrokeMiter(kSqrt2 + flutter::kEhCloseEnough);
601 builder.DrawRect(rect.Shift({500, 500}), paint);
602 builder.DrawRect(rect.Shift({500, 500}), thin_paint);
603
604 // rect (H)
605 paint.setStrokeJoin(DlStrokeJoin::kMiter);
606 paint.setStrokeMiter(kSqrt2 - flutter::kEhCloseEnough);
607 builder.DrawRect(rect.Shift({700, 500}), paint);
608 builder.DrawRect(rect.Shift({700, 500}), thin_paint);
609
610 DlPaint round_mock_paint;
611 round_mock_paint.setColor(DlColor::kGreen());
612 round_mock_paint.setDrawStyle(DlDrawStyle::kFill);
613
614 // array of rects (X)
615 Scalar x = 900;
616 Scalar y = 50;
617 for (int i = 0; i < 15; i++) {
618 paint.setStrokeWidth(i);
619 paint.setColor(DlColor::kOrange());
620 paint.setStrokeJoin(DlStrokeJoin::kRound);
621 builder.DrawRect(DlRect::MakeXYWH(x, y, 30, 30), paint);
622 y += 32 + i;
623 }
624
625 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
626 }
627
628 TEST_P(AiksTest, FilledCirclesRenderCorrectly) {
629 DisplayListBuilder builder;
630 builder.Scale(GetContentScale().x, GetContentScale().y);
631 DlPaint paint;
632 const int color_count = 3;
633 DlColor colors[color_count] = {
634 DlColor::kBlue(),
635 DlColor::kGreen(),
636 DlColor::RGBA(220.0f / 255.0f, 20.0f / 255.0f, 60.0f / 255.0f, 1.0f),
637 };
638
639 paint.setColor(DlColor::kWhite());
640 builder.DrawPaint(paint);
641
642 int c_index = 0;
643 int radius = 600;
644 while (radius > 0) {
645 paint.setColor(colors[(c_index++) % color_count]);
646 builder.DrawCircle(DlPoint(10, 10), radius, paint);
647 if (radius > 30) {
648 radius -= 10;
649 } else {
650 radius -= 2;
651 }
652 }
653
654 DlColor gradient_colors[7] = {
655 DlColor::RGBA(0x1f / 255.0, 0.0, 0x5c / 255.0, 1.0),
656 DlColor::RGBA(0x5b / 255.0, 0.0, 0x60 / 255.0, 1.0),
657 DlColor::RGBA(0x87 / 255.0, 0x01 / 255.0, 0x60 / 255.0, 1.0),
658 DlColor::RGBA(0xac / 255.0, 0x25 / 255.0, 0x53 / 255.0, 1.0),
659 DlColor::RGBA(0xe1 / 255.0, 0x6b / 255.0, 0x5c / 255.0, 1.0),
660 DlColor::RGBA(0xf3 / 255.0, 0x90 / 255.0, 0x60 / 255.0, 1.0),
661 DlColor::RGBA(0xff / 255.0, 0xb5 / 255.0, 0x6b / 250.0, 1.0),
662 };
663 DlScalar stops[7] = {
664 0.0,
665 (1.0 / 6.0) * 1,
666 (1.0 / 6.0) * 2,
667 (1.0 / 6.0) * 3,
668 (1.0 / 6.0) * 4,
669 (1.0 / 6.0) * 5,
670 1.0,
671 };
672 auto texture = CreateTextureForFixture("airplane.jpg",
673 /*enable_mipmapping=*/true);
674 auto image = DlImageImpeller::Make(texture);
675
676 paint.setColorSource(DlColorSource::MakeRadial(
677 DlPoint(500, 600), 75, 7, gradient_colors, stops, DlTileMode::kMirror));
678 builder.DrawCircle(DlPoint(500, 600), 100, paint);
679
680 DlMatrix local_matrix = DlMatrix::MakeTranslation({700, 200});
681 paint.setColorSource(DlColorSource::MakeImage(
682 image, DlTileMode::kRepeat, DlTileMode::kRepeat,
683 DlImageSampling::kNearestNeighbor, &local_matrix));
684 builder.DrawCircle(DlPoint(800, 300), 100, paint);
685
686 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
687 }
688
689 TEST_P(AiksTest, StrokedCirclesRenderCorrectly) {
690 DisplayListBuilder builder;
691 builder.Scale(GetContentScale().x, GetContentScale().y);
692 DlPaint paint;
693 const int color_count = 3;
694 DlColor colors[color_count] = {
695 DlColor::kBlue(),
696 DlColor::kGreen(),
697 DlColor::RGBA(220.0f / 255.0f, 20.0f / 255.0f, 60.0f / 255.0f, 1.0f),
698 };
699
700 paint.setColor(DlColor::kWhite());
701 builder.DrawPaint(paint);
702
703 int c_index = 0;
704
705 auto draw = [&paint, &colors, &c_index](DlCanvas& canvas, DlPoint center,
706 Scalar r, Scalar dr, int n) {
707 for (int i = 0; i < n; i++) {
708 paint.setColor(colors[(c_index++) % color_count]);
709 canvas.DrawCircle(center, r, paint);
710 r += dr;
711 }
712 };
713
714 paint.setDrawStyle(DlDrawStyle::kStroke);
715 paint.setStrokeWidth(1);
716 draw(builder, DlPoint(10, 10), 2, 2, 14); // r = [2, 28], covers [1,29]
717 paint.setStrokeWidth(5);
718 draw(builder, DlPoint(10, 10), 35, 10, 56); // r = [35, 585], covers [30,590]
719
720 DlColor gradient_colors[7] = {
721 DlColor::RGBA(0x1f / 255.0, 0.0, 0x5c / 255.0, 1.0),
722 DlColor::RGBA(0x5b / 255.0, 0.0, 0x60 / 255.0, 1.0),
723 DlColor::RGBA(0x87 / 255.0, 0x01 / 255.0, 0x60 / 255.0, 1.0),
724 DlColor::RGBA(0xac / 255.0, 0x25 / 255.0, 0x53 / 255.0, 1.0),
725 DlColor::RGBA(0xe1 / 255.0, 0x6b / 255.0, 0x5c / 255.0, 1.0),
726 DlColor::RGBA(0xf3 / 255.0, 0x90 / 255.0, 0x60 / 255.0, 1.0),
727 DlColor::RGBA(0xff / 255.0, 0xb5 / 255.0, 0x6b / 250.0, 1.0),
728 };
729 DlScalar stops[7] = {
730 0.0,
731 (1.0 / 6.0) * 1,
732 (1.0 / 6.0) * 2,
733 (1.0 / 6.0) * 3,
734 (1.0 / 6.0) * 4,
735 (1.0 / 6.0) * 5,
736 1.0,
737 };
738 auto texture = CreateTextureForFixture("airplane.jpg",
739 /*enable_mipmapping=*/true);
740 auto image = DlImageImpeller::Make(texture);
741
742 paint.setColorSource(DlColorSource::MakeRadial(
743 DlPoint(500, 600), 75, 7, gradient_colors, stops, DlTileMode::kMirror));
744 draw(builder, DlPoint(500, 600), 5, 10, 10);
745
746 DlMatrix local_matrix = DlMatrix::MakeTranslation({700, 200});
747 paint.setColorSource(DlColorSource::MakeImage(
748 image, DlTileMode::kRepeat, DlTileMode::kRepeat,
749 DlImageSampling::kNearestNeighbor, &local_matrix));
750 draw(builder, DlPoint(800, 300), 5, 10, 10);
751
752 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
753 }
754
755 TEST_P(AiksTest, FilledEllipsesRenderCorrectly) {
756 DisplayListBuilder builder;
757 builder.Scale(GetContentScale().x, GetContentScale().y);
758 DlPaint paint;
759 const int color_count = 3;
760 DlColor colors[color_count] = {
761 DlColor::kBlue(),
762 DlColor::kGreen(),
763 DlColor::RGBA(220.0f / 255.0f, 20.0f / 255.0f, 60.0f / 255.0f, 1.0f),
764 };
765
766 paint.setColor(DlColor::kWhite());
767 builder.DrawPaint(paint);
768
769 int c_index = 0;
770 int long_radius = 600;
771 int short_radius = 600;
772 while (long_radius > 0 && short_radius > 0) {
773 paint.setColor(colors[(c_index++) % color_count]);
774 builder.DrawOval(DlRect::MakeXYWH(10 - long_radius, 10 - short_radius,
775 long_radius * 2, short_radius * 2),
776 paint);
777 builder.DrawOval(DlRect::MakeXYWH(1000 - short_radius, 750 - long_radius,
778 short_radius * 2, long_radius * 2),
779 paint);
780 if (short_radius > 30) {
781 short_radius -= 10;
782 long_radius -= 5;
783 } else {
784 short_radius -= 2;
785 long_radius -= 1;
786 }
787 }
788
789 DlColor gradient_colors[7] = {
790 DlColor::RGBA(0x1f / 255.0, 0.0, 0x5c / 255.0, 1.0),
791 DlColor::RGBA(0x5b / 255.0, 0.0, 0x60 / 255.0, 1.0),
792 DlColor::RGBA(0x87 / 255.0, 0x01 / 255.0, 0x60 / 255.0, 1.0),
793 DlColor::RGBA(0xac / 255.0, 0x25 / 255.0, 0x53 / 255.0, 1.0),
794 DlColor::RGBA(0xe1 / 255.0, 0x6b / 255.0, 0x5c / 255.0, 1.0),
795 DlColor::RGBA(0xf3 / 255.0, 0x90 / 255.0, 0x60 / 255.0, 1.0),
796 DlColor::RGBA(0xff / 255.0, 0xb5 / 255.0, 0x6b / 250.0, 1.0),
797 };
798 DlScalar stops[7] = {
799 0.0,
800 (1.0 / 6.0) * 1,
801 (1.0 / 6.0) * 2,
802 (1.0 / 6.0) * 3,
803 (1.0 / 6.0) * 4,
804 (1.0 / 6.0) * 5,
805 1.0,
806 };
807 auto texture = CreateTextureForFixture("airplane.jpg",
808 /*enable_mipmapping=*/true);
809 auto image = DlImageImpeller::Make(texture);
810
811 paint.setColor(DlColor::kWhite().modulateOpacity(0.5));
812
813 paint.setColorSource(DlColorSource::MakeRadial(
814 DlPoint(300, 650), 75, 7, gradient_colors, stops, DlTileMode::kMirror));
815 builder.DrawOval(DlRect::MakeXYWH(200, 625, 200, 50), paint);
816 builder.DrawOval(DlRect::MakeXYWH(275, 550, 50, 200), paint);
817
818 DlMatrix local_matrix = DlMatrix::MakeTranslation({610, 15});
819 paint.setColorSource(DlColorSource::MakeImage(
820 image, DlTileMode::kRepeat, DlTileMode::kRepeat,
821 DlImageSampling::kNearestNeighbor, &local_matrix));
822 builder.DrawOval(DlRect::MakeXYWH(610, 90, 200, 50), paint);
823 builder.DrawOval(DlRect::MakeXYWH(685, 15, 50, 200), paint);
824
825 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
826 }
827
828 namespace {
829 struct ArcFarmOptions {
830 bool use_center = false;
831 bool full_circles = false;
832 bool sweeps_over_360 = false;
833 Scalar vertical_scale = 1.0f;
834 };
835
836 void RenderArcFarm(DisplayListBuilder& builder,
837 const DlPaint& paint,
838 const ArcFarmOptions& opts) {
839 builder.Save();
840 builder.Translate(50, 50);
841 const Rect arc_bounds = Rect::MakeLTRB(0, 0, 42, 42 * opts.vertical_scale);
842 const int sweep_limit = opts.sweeps_over_360 ? 420 : 360;
843 for (int start = 0; start <= 360; start += 30) {
844 builder.Save();
845 for (int sweep = 30; sweep <= sweep_limit; sweep += 30) {
846 builder.DrawArc(arc_bounds, start, opts.full_circles ? 360 : sweep,
847 opts.use_center, paint);
848 builder.Translate(50, 0);
849 }
850 builder.Restore();
851 builder.Translate(0, 50);
852 }
853 builder.Restore();
854 }
855 } // namespace
856
857 TEST_P(AiksTest, FilledArcsRenderCorrectly) {
858 DisplayListBuilder builder;
859 builder.Scale(GetContentScale().x, GetContentScale().y);
860 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
861
862 DlPaint paint;
863 paint.setColor(DlColor::kBlue());
864
865 RenderArcFarm(builder, paint,
866 {
867 .use_center = false,
868 .full_circles = false,
869 });
870
871 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
872 }
873
874 TEST_P(AiksTest, FilledArcsRenderCorrectlyWithCenter) {
875 DisplayListBuilder builder;
876 builder.Scale(GetContentScale().x, GetContentScale().y);
877 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
878
879 DlPaint paint;
880 paint.setColor(DlColor::kBlue());
881
882 RenderArcFarm(builder, paint,
883 {
884 .use_center = true,
885 .full_circles = false,
886 });
887
888 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
889 }
890
891 TEST_P(AiksTest, NonSquareFilledArcsRenderCorrectly) {
892 DisplayListBuilder builder;
893 builder.Scale(GetContentScale().x, GetContentScale().y);
894 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
895
896 DlPaint paint;
897 paint.setColor(DlColor::kBlue());
898
899 RenderArcFarm(builder, paint,
900 {
901 .use_center = false,
902 .full_circles = false,
903 .vertical_scale = 0.8f,
904 });
905
906 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
907 }
908
909 TEST_P(AiksTest, NonSquareFilledArcsRenderCorrectlyWithCenter) {
910 DisplayListBuilder builder;
911 builder.Scale(GetContentScale().x, GetContentScale().y);
912 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
913
914 DlPaint paint;
915 paint.setColor(DlColor::kBlue());
916
917 RenderArcFarm(builder, paint,
918 {
919 .use_center = true,
920 .full_circles = false,
921 .vertical_scale = 0.8f,
922 });
923
924 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
925 }
926
927 TEST_P(AiksTest, StrokedArcsRenderCorrectlyWithButtEnds) {
928 DisplayListBuilder builder;
929 builder.Scale(GetContentScale().x, GetContentScale().y);
930 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
931
932 DlPaint paint;
933 paint.setDrawStyle(DlDrawStyle::kStroke);
934 paint.setStrokeWidth(6.0f);
935 paint.setStrokeCap(DlStrokeCap::kButt);
936 paint.setColor(DlColor::kBlue());
937
938 RenderArcFarm(builder, paint,
939 {
940 .use_center = false,
941 .full_circles = false,
942 });
943
944 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
945 }
946
947 TEST_P(AiksTest, StrokedArcsRenderCorrectlyWithSquareEnds) {
948 DisplayListBuilder builder;
949 builder.Scale(GetContentScale().x, GetContentScale().y);
950 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
951
952 DlPaint paint;
953 paint.setDrawStyle(DlDrawStyle::kStroke);
954 paint.setStrokeWidth(6.0f);
955 paint.setStrokeCap(DlStrokeCap::kSquare);
956 paint.setColor(DlColor::kBlue());
957
958 RenderArcFarm(builder, paint,
959 {
960 .use_center = false,
961 .full_circles = false,
962 });
963
964 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
965 }
966
967 TEST_P(AiksTest, StrokedArcsRenderCorrectlyWithRoundEnds) {
968 DisplayListBuilder builder;
969 builder.Scale(GetContentScale().x, GetContentScale().y);
970 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
971
972 DlPaint paint;
973 paint.setDrawStyle(DlDrawStyle::kStroke);
974 paint.setStrokeWidth(6.0f);
975 paint.setStrokeCap(DlStrokeCap::kRound);
976 paint.setColor(DlColor::kBlue());
977
978 RenderArcFarm(builder, paint,
979 {
980 .use_center = false,
981 .full_circles = false,
982 });
983
984 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
985 }
986
987 TEST_P(AiksTest, StrokedArcsRenderCorrectlyWithBevelJoinsAndCenter) {
988 DisplayListBuilder builder;
989 builder.Scale(GetContentScale().x, GetContentScale().y);
990 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
991
992 DlPaint paint;
993 paint.setDrawStyle(DlDrawStyle::kStroke);
994 paint.setStrokeWidth(6.0f);
995 paint.setStrokeJoin(DlStrokeJoin::kBevel);
996 paint.setColor(DlColor::kBlue());
997
998 RenderArcFarm(builder, paint,
999 {
1000 .use_center = true,
1001 .full_circles = false,
1002 .sweeps_over_360 = true,
1003 });
1004
1005 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1006 }
1007
1008 TEST_P(AiksTest, StrokedArcsRenderCorrectlyWithMiterJoinsAndCenter) {
1009 DisplayListBuilder builder;
1010 builder.Scale(GetContentScale().x, GetContentScale().y);
1011 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
1012
1013 DlPaint paint;
1014 paint.setDrawStyle(DlDrawStyle::kStroke);
1015 paint.setStrokeWidth(6.0f);
1016 paint.setStrokeJoin(DlStrokeJoin::kMiter);
1017 // Default miter of 4.0 does a miter on all of the centers, but
1018 // using 3.0 will show some bevels on the widest interior angles...
1019 paint.setStrokeMiter(3.0f);
1020 paint.setColor(DlColor::kBlue());
1021
1022 RenderArcFarm(builder, paint,
1023 {
1024 .use_center = true,
1025 .full_circles = false,
1026 .sweeps_over_360 = true,
1027 });
1028
1029 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1030 }
1031
1032 TEST_P(AiksTest, StrokedArcsRenderCorrectlyWithRoundJoinsAndCenter) {
1033 DisplayListBuilder builder;
1034 builder.Scale(GetContentScale().x, GetContentScale().y);
1035 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
1036
1037 DlPaint paint;
1038 paint.setDrawStyle(DlDrawStyle::kStroke);
1039 paint.setStrokeWidth(6.0f);
1040 paint.setStrokeJoin(DlStrokeJoin::kRound);
1041 paint.setColor(DlColor::kBlue());
1042
1043 RenderArcFarm(builder, paint,
1044 {
1045 .use_center = true,
1046 .full_circles = false,
1047 .sweeps_over_360 = true,
1048 });
1049
1050 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1051 }
1052
1053 TEST_P(AiksTest, StrokedArcsRenderCorrectlyWithSquareAndButtEnds) {
1054 DisplayListBuilder builder;
1055 builder.Scale(GetContentScale().x, GetContentScale().y);
1056 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
1057
1058 DlPaint paint;
1059 paint.setDrawStyle(DlDrawStyle::kStroke);
1060 paint.setStrokeWidth(8.0f);
1061 paint.setStrokeCap(DlStrokeCap::kSquare);
1062 paint.setColor(DlColor::kRed());
1063
1064 RenderArcFarm(builder, paint,
1065 {
1066 .use_center = false,
1067 .full_circles = false,
1068 });
1069
1070 paint.setStrokeCap(DlStrokeCap::kButt);
1071 paint.setColor(DlColor::kBlue());
1072
1073 RenderArcFarm(builder, paint,
1074 {
1075 .use_center = false,
1076 .full_circles = false,
1077 });
1078
1079 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1080 }
1081
1082 TEST_P(AiksTest, StrokedArcsRenderCorrectlyWithSquareAndButtAndRoundEnds) {
1083 DisplayListBuilder builder;
1084 builder.Scale(GetContentScale().x, GetContentScale().y);
1085 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
1086
1087 DlPaint paint;
1088 paint.setDrawStyle(DlDrawStyle::kStroke);
1089 paint.setStrokeWidth(8.0f);
1090 paint.setStrokeCap(DlStrokeCap::kSquare);
1091 paint.setColor(DlColor::kRed());
1092
1093 RenderArcFarm(builder, paint,
1094 {
1095 .use_center = false,
1096 .full_circles = false,
1097 });
1098
1099 paint.setStrokeCap(DlStrokeCap::kRound);
1100 paint.setColor(DlColor::kGreen());
1101
1102 RenderArcFarm(builder, paint,
1103 {
1104 .use_center = false,
1105 .full_circles = false,
1106 });
1107
1108 paint.setStrokeCap(DlStrokeCap::kButt);
1109 paint.setColor(DlColor::kBlue());
1110
1111 RenderArcFarm(builder, paint,
1112 {
1113 .use_center = false,
1114 .full_circles = false,
1115 });
1116
1117 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1118 }
1119
1120 TEST_P(AiksTest, StrokedArcsCoverFullArcWithButtEnds) {
1121 // This test compares the rendering of a full circle arc against a partial
1122 // arc by drawing a one over the other in high contrast. If the partial
1123 // arc misses any pixels that were drawn by the full arc, there will be
1124 // some "pixel dirt" around the missing "erased" parts of the arcs. This
1125 // case arises while rendering a CircularProgressIndicator with a background
1126 // color where we want the rendering of the background full arc to hit the
1127 // same pixels around the edges as the partial arc that covers it.
1128 //
1129 // In this case we draw a full blue circle and then draw a partial arc
1130 // over it in the background color (white).
1131
1132 DisplayListBuilder builder;
1133 builder.Scale(GetContentScale().x, GetContentScale().y);
1134 builder.DrawColor(DlColor::kWhite(), DlBlendMode::kSrc);
1135
1136 DlPaint paint;
1137 paint.setDrawStyle(DlDrawStyle::kStroke);
1138 paint.setStrokeWidth(6.0f);
1139 paint.setStrokeCap(DlStrokeCap::kButt);
1140 paint.setColor(DlColor::kBlue());
1141
1142 // First draw full circles in blue to establish the pixels to be erased
1143 RenderArcFarm(builder, paint,
1144 {
1145 .use_center = false,
1146 .full_circles = true,
1147 });
1148
1149 paint.setColor(DlColor::kWhite());
1150
1151 // Then draw partial arcs in white over the circles to "erase" them
1152 RenderArcFarm(builder, paint,
1153 {
1154 .use_center = false,
1155 .full_circles = false,
1156 });
1157
1158 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1159 }
1160
1161 TEST_P(AiksTest, FilledRoundRectsRenderCorrectly) {
1162 DisplayListBuilder builder;
1163 builder.Scale(GetContentScale().x, GetContentScale().y);
1164 DlPaint paint;
1165 const int color_count = 3;
1166 DlColor colors[color_count] = {
1167 DlColor::kBlue(),
1168 DlColor::kGreen(),
1169 DlColor::RGBA(220.0f / 255.0f, 20.0f / 255.0f, 60.0f / 255.0f, 1.0f),
1170 };
1171
1172 paint.setColor(DlColor::kWhite());
1173 builder.DrawPaint(paint);
1174
1175 int c_index = 0;
1176 for (int i = 0; i < 4; i++) {
1177 for (int j = 0; j < 4; j++) {
1178 paint.setColor(colors[(c_index++) % color_count]);
1179 builder.DrawRoundRect(
1180 DlRoundRect::MakeRectXY(
1181 DlRect::MakeXYWH(i * 100 + 10, j * 100 + 20, 80, 80), //
1182 i * 5 + 10, j * 5 + 10),
1183 paint);
1184 }
1185 }
1186 paint.setColor(colors[(c_index++) % color_count]);
1187 builder.DrawRoundRect(
1188 DlRoundRect::MakeRectXY(DlRect::MakeXYWH(10, 420, 380, 80), 40, 40),
1189 paint);
1190 paint.setColor(colors[(c_index++) % color_count]);
1191 builder.DrawRoundRect(
1192 DlRoundRect::MakeRectXY(DlRect::MakeXYWH(410, 20, 80, 380), 40, 40),
1193 paint);
1194
1195 DlColor gradient_colors[7] = {
1196 DlColor::RGBA(0x1f / 255.0, 0.0, 0x5c / 255.0, 1.0),
1197 DlColor::RGBA(0x5b / 255.0, 0.0, 0x60 / 255.0, 1.0),
1198 DlColor::RGBA(0x87 / 255.0, 0x01 / 255.0, 0x60 / 255.0, 1.0),
1199 DlColor::RGBA(0xac / 255.0, 0x25 / 255.0, 0x53 / 255.0, 1.0),
1200 DlColor::RGBA(0xe1 / 255.0, 0x6b / 255.0, 0x5c / 255.0, 1.0),
1201 DlColor::RGBA(0xf3 / 255.0, 0x90 / 255.0, 0x60 / 255.0, 1.0),
1202 DlColor::RGBA(0xff / 255.0, 0xb5 / 255.0, 0x6b / 250.0, 1.0),
1203 };
1204 DlScalar stops[7] = {
1205 0.0,
1206 (1.0 / 6.0) * 1,
1207 (1.0 / 6.0) * 2,
1208 (1.0 / 6.0) * 3,
1209 (1.0 / 6.0) * 4,
1210 (1.0 / 6.0) * 5,
1211 1.0,
1212 };
1213 auto texture = CreateTextureForFixture("airplane.jpg",
1214 /*enable_mipmapping=*/true);
1215 auto image = DlImageImpeller::Make(texture);
1216
1217 paint.setColor(DlColor::kWhite().modulateOpacity(0.1));
1218 paint.setColorSource(DlColorSource::MakeRadial(
1219 DlPoint(550, 550), 75, 7, gradient_colors, stops, DlTileMode::kMirror));
1220 for (int i = 1; i <= 10; i++) {
1221 int j = 11 - i;
1222 builder.DrawRoundRect(
1223 DlRoundRect::MakeRectXY(DlRect::MakeLTRB(550 - i * 20, 550 - j * 20, //
1224 550 + i * 20, 550 + j * 20),
1225 i * 10, j * 10),
1226 paint);
1227 }
1228
1229 paint.setColor(DlColor::kWhite().modulateOpacity(0.5));
1230 paint.setColorSource(DlColorSource::MakeRadial(
1231 DlPoint(200, 650), 75, 7, gradient_colors, stops, DlTileMode::kMirror));
1232 paint.setColor(DlColor::kWhite().modulateOpacity(0.5));
1233 builder.DrawRoundRect(
1234 DlRoundRect::MakeRectXY(DlRect::MakeLTRB(100, 610, 300, 690), 40, 40),
1235 paint);
1236 builder.DrawRoundRect(
1237 DlRoundRect::MakeRectXY(DlRect::MakeLTRB(160, 550, 240, 750), 40, 40),
1238 paint);
1239
1240 paint.setColor(DlColor::kWhite().modulateOpacity(0.1));
1241 DlMatrix local_matrix = DlMatrix::MakeTranslation({520, 20});
1242 paint.setColorSource(DlColorSource::MakeImage(
1243 image, DlTileMode::kRepeat, DlTileMode::kRepeat,
1244 DlImageSampling::kNearestNeighbor, &local_matrix));
1245 for (int i = 1; i <= 10; i++) {
1246 int j = 11 - i;
1247 builder.DrawRoundRect(
1248 DlRoundRect::MakeRectXY(DlRect::MakeLTRB(720 - i * 20, 220 - j * 20, //
1249 720 + i * 20, 220 + j * 20),
1250 i * 10, j * 10),
1251 paint);
1252 }
1253
1254 paint.setColor(DlColor::kWhite().modulateOpacity(0.5));
1255 local_matrix = DlMatrix::MakeTranslation({800, 300});
1256 paint.setColorSource(DlColorSource::MakeImage(
1257 image, DlTileMode::kRepeat, DlTileMode::kRepeat,
1258 DlImageSampling::kNearestNeighbor, &local_matrix));
1259 builder.DrawRoundRect(
1260 DlRoundRect::MakeRectXY(DlRect::MakeLTRB(800, 410, 1000, 490), 40, 40),
1261 paint);
1262 builder.DrawRoundRect(
1263 DlRoundRect::MakeRectXY(DlRect::MakeLTRB(860, 350, 940, 550), 40, 40),
1264 paint);
1265
1266 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1267 }
1268
1269 TEST_P(AiksTest, SolidColorCirclesOvalsRRectsMaskBlurCorrectly) {
1270 DisplayListBuilder builder;
1271 builder.Scale(GetContentScale().x, GetContentScale().y);
1272 DlPaint paint;
1273 paint.setMaskFilter(DlBlurMaskFilter::Make(DlBlurStyle::kNormal, 1.0f));
1274
1275 builder.DrawPaint(DlPaint().setColor(DlColor::kWhite()));
1276
1277 paint.setColor(
1278 DlColor::RGBA(220.0f / 255.0f, 20.0f / 255.0f, 60.0f / 255.0f, 1.0f));
1279 Scalar y = 100.0f;
1280 for (int i = 0; i < 5; i++) {
1281 Scalar x = (i + 1) * 100;
1282 Scalar radius = x / 10.0f;
1283 builder.DrawRect(DlRect::MakeXYWH(x + 25 - radius / 2, y + radius / 2, //
1284 radius, 60.0f - radius),
1285 paint);
1286 }
1287
1288 paint.setColor(DlColor::kBlue());
1289 y += 100.0f;
1290 for (int i = 0; i < 5; i++) {
1291 Scalar x = (i + 1) * 100;
1292 Scalar radius = x / 10.0f;
1293 builder.DrawCircle(DlPoint(x + 25, y + 25), radius, paint);
1294 }
1295
1296 paint.setColor(DlColor::kGreen());
1297 y += 100.0f;
1298 for (int i = 0; i < 5; i++) {
1299 Scalar x = (i + 1) * 100;
1300 Scalar radius = x / 10.0f;
1301 builder.DrawOval(DlRect::MakeXYWH(x + 25 - radius / 2, y + radius / 2, //
1302 radius, 60.0f - radius),
1303 paint);
1304 }
1305
1306 paint.setColor(
1307 DlColor::RGBA(128.0f / 255.0f, 0.0f / 255.0f, 128.0f / 255.0f, 1.0f));
1308 y += 100.0f;
1309 for (int i = 0; i < 5; i++) {
1310 Scalar x = (i + 1) * 100;
1311 Scalar radius = x / 20.0f;
1312 builder.DrawRoundRect(
1313 DlRoundRect::MakeRectXY(DlRect::MakeXYWH(x, y, 60.0f, 60.0f), //
1314 radius, radius),
1315 paint);
1316 }
1317
1318 paint.setColor(
1319 DlColor::RGBA(255.0f / 255.0f, 165.0f / 255.0f, 0.0f / 255.0f, 1.0f));
1320 y += 100.0f;
1321 for (int i = 0; i < 5; i++) {
1322 Scalar x = (i + 1) * 100;
1323 Scalar radius = x / 20.0f;
1324 builder.DrawRoundRect(
1325 DlRoundRect::MakeRectXY(DlRect::MakeXYWH(x, y, 60.0f, 60.0f), //
1326 radius, 5.0f),
1327 paint);
1328 }
1329
1330 auto dl = builder.Build();
1331 ASSERT_TRUE(OpenPlaygroundHere(dl));
1332 }
1333
1334 TEST_P(AiksTest, CanRenderClippedBackdropFilter) {
1335 DisplayListBuilder builder;
1336
1337 builder.Scale(GetContentScale().x, GetContentScale().y);
1338
1339 // Draw something interesting in the background.
1340 std::vector<DlColor> colors = {DlColor::RGBA(0.9568, 0.2627, 0.2118, 1.0),
1341 DlColor::RGBA(0.1294, 0.5882, 0.9529, 1.0)};
1342 std::vector<Scalar> stops = {
1343 0.0,
1344 1.0,
1345 };
1346 DlPaint paint;
1347 paint.setColorSource(DlColorSource::MakeLinear(
1348 /*start_point=*/DlPoint(0, 0), //
1349 /*end_point=*/DlPoint(100, 100), //
1350 /*stop_count=*/2, //
1351 /*colors=*/colors.data(), //
1352 /*stops=*/stops.data(), //
1353 /*tile_mode=*/DlTileMode::kRepeat //
1354 ));
1355
1356 builder.DrawPaint(paint);
1357
1358 DlRect clip_rect = DlRect::MakeLTRB(50, 50, 400, 300);
1359 DlRoundRect clip_rrect = DlRoundRect::MakeRectXY(clip_rect, 100, 100);
1360
1361 // Draw a clipped SaveLayer, where the clip coverage and SaveLayer size are
1362 // the same.
1363 builder.ClipRoundRect(clip_rrect, DlClipOp::kIntersect);
1364
1365 DlPaint save_paint;
1366 auto backdrop_filter = DlImageFilter::MakeColorFilter(
1367 DlColorFilter::MakeBlend(DlColor::kRed(), DlBlendMode::kExclusion));
1368 builder.SaveLayer(clip_rect, &save_paint, backdrop_filter.get());
1369
1370 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1371 }
1372
1373 TEST_P(AiksTest, CanDrawPerspectiveTransformWithClips) {
1374 // Avoiding `GetSecondsElapsed()` to reduce risk of golden flakiness.
1375 int time = 0;
1376 auto callback = [&]() -> sk_sp<DisplayList> {
1377 DisplayListBuilder builder;
1378
1379 builder.Save();
1380 {
1381 builder.Translate(300, 300);
1382
1383 // 1. Draw/restore a clip before drawing the image, which will get drawn
1384 // to the depth buffer behind the image.
1385 builder.Save();
1386 {
1387 DlPaint paint;
1388 paint.setColor(DlColor::kGreen());
1389 builder.DrawPaint(paint);
1390 builder.ClipRect(DlRect::MakeLTRB(-180, -180, 180, 180),
1391 DlClipOp::kDifference);
1392
1393 paint.setColor(DlColor::kBlack());
1394 builder.DrawPaint(paint);
1395 }
1396 builder.Restore(); // Restore rectangle difference clip.
1397
1398 builder.Save();
1399 {
1400 // 2. Draw an oval clip that applies to the image, which will get drawn
1401 // in front of the image on the depth buffer.
1402 builder.ClipOval(DlRect::MakeLTRB(-200, -200, 200, 200));
1403
1404 Matrix result =
1405 Matrix(1.0, 0.0, 0.0, 0.0, //
1406 0.0, 1.0, 0.0, 0.0, //
1407 0.0, 0.0, 1.0, 0.003, //
1408 0.0, 0.0, 0.0, 1.0) *
1409 Matrix::MakeRotationY({Radians{-1.0f + (time++ / 60.0f)}});
1410
1411 // 3. Draw the rotating image with a perspective transform.
1412 builder.Transform(result);
1413
1414 auto image =
1415 DlImageImpeller::Make(CreateTextureForFixture("airplane.jpg"));
1416 auto position =
1417 -DlPoint(image->GetSize().width, image->GetSize().height) * 0.5;
1418 builder.DrawImage(image, position, {});
1419 }
1420 builder.Restore(); // Restore oval intersect clip.
1421
1422 // 4. Draw a semi-translucent blue circle atop all previous draws.
1423 DlPaint paint;
1424 paint.setColor(DlColor::kBlue().modulateOpacity(0.4));
1425 builder.DrawCircle(DlPoint(), 230, paint);
1426 }
1427 builder.Restore(); // Restore translation.
1428
1429 return builder.Build();
1430 };
1431 ASSERT_TRUE(OpenPlaygroundHere(callback));
1432 }
1433
1434 TEST_P(AiksTest, ImageColorSourceEffectTransform) {
1435 // Compare with https://fiddle.skia.org/c/6cdc5aefb291fda3833b806ca347a885
1436
1437 DisplayListBuilder builder;
1438 auto texture = DlImageImpeller::Make(CreateTextureForFixture("monkey.png"));
1439
1440 DlPaint paint;
1441 paint.setColor(DlColor::kWhite());
1442 builder.DrawPaint(paint);
1443
1444 // Translation
1445 {
1446 DlMatrix matrix = DlMatrix::MakeTranslation({50, 50});
1447 DlPaint paint;
1448 paint.setColorSource(DlColorSource::MakeImage(
1449 texture, DlTileMode::kRepeat, DlTileMode::kRepeat,
1450 DlImageSampling::kNearestNeighbor, &matrix));
1451
1452 builder.DrawRect(DlRect::MakeLTRB(0, 0, 100, 100), paint);
1453 }
1454
1455 // Rotation/skew
1456 {
1457 builder.Save();
1458 builder.Rotate(45);
1459 DlPaint paint;
1460
1461 Matrix matrix(1, -1, 0, 0, //
1462 1, 1, 0, 0, //
1463 0, 0, 1, 0, //
1464 0, 0, 0, 1);
1465 paint.setColorSource(DlColorSource::MakeImage(
1466 texture, DlTileMode::kRepeat, DlTileMode::kRepeat,
1467 DlImageSampling::kNearestNeighbor, &matrix));
1468 builder.DrawRect(DlRect::MakeLTRB(100, 0, 200, 100), paint);
1469 builder.Restore();
1470 }
1471
1472 // Scale
1473 {
1474 builder.Save();
1475 builder.Translate(100, 0);
1476 builder.Scale(100, 100);
1477 DlPaint paint;
1478
1479 DlMatrix matrix = DlMatrix::MakeScale({0.005, 0.005, 1});
1480 paint.setColorSource(DlColorSource::MakeImage(
1481 texture, DlTileMode::kRepeat, DlTileMode::kRepeat,
1482 DlImageSampling::kNearestNeighbor, &matrix));
1483
1484 builder.DrawRect(DlRect::MakeLTRB(0, 0, 1, 1), paint);
1485 builder.Restore();
1486 }
1487
1488 // Perspective
1489 {
1490 builder.Save();
1491 builder.Translate(150, 150);
1492 DlPaint paint;
1493
1494 DlMatrix matrix =
1495 DlMatrix::MakePerspective(Radians{0.5}, ISize{200, 200}, 0.05, 1);
1496 paint.setColorSource(DlColorSource::MakeImage(
1497 texture, DlTileMode::kRepeat, DlTileMode::kRepeat,
1498 DlImageSampling::kNearestNeighbor, &matrix));
1499
1500 builder.DrawRect(DlRect::MakeLTRB(0, 0, 200, 200), paint);
1501 builder.Restore();
1502 }
1503
1504 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1505 }
1506
1507 TEST_P(AiksTest, SubpassWithClearColorOptimization) {
1508 DisplayListBuilder builder;
1509
1510 // Use a non-srcOver blend mode to ensure that we don't detect this as an
1511 // opacity peephole optimization.
1512 DlPaint paint;
1513 paint.setColor(DlColor::kBlue().modulateOpacity(0.5));
1514 paint.setBlendMode(DlBlendMode::kSrc);
1515
1516 DlRect bounds = DlRect::MakeLTRB(0, 0, 200, 200);
1517 builder.SaveLayer(bounds, &paint);
1518
1519 paint.setColor(DlColor::kTransparent());
1520 paint.setBlendMode(DlBlendMode::kSrc);
1521 builder.DrawPaint(paint);
1522 builder.Restore();
1523
1524 paint.setColor(DlColor::kBlue());
1525 paint.setBlendMode(DlBlendMode::kDstOver);
1526 builder.SaveLayer(std::nullopt, &paint);
1527 builder.Restore();
1528
1529 // This playground should appear blank on CI since we are only drawing
1530 // transparent black. If the clear color optimization is broken, the texture
1531 // will be filled with NaNs and may produce a magenta texture on macOS or iOS.
1532 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1533 }
1534
1535 // Render a white circle at the top left corner of the screen.
1536 TEST_P(AiksTest, MatrixImageFilterDoesntCullWhenTranslatedFromOffscreen) {
1537 DisplayListBuilder builder;
1538 builder.Scale(GetContentScale().x, GetContentScale().y);
1539 builder.Translate(100, 100);
1540 // Draw a circle in a SaveLayer at -300, but move it back on-screen with a
1541 // +300 translation applied by a SaveLayer image filter.
1542 DlPaint paint;
1543 DlMatrix translate = DlMatrix::MakeTranslation({300, 0});
1544 paint.setImageFilter(
1545 DlImageFilter::MakeMatrix(translate, DlImageSampling::kLinear));
1546 builder.SaveLayer(std::nullopt, &paint);
1547
1548 DlPaint circle_paint;
1549 circle_paint.setColor(DlColor::kGreen());
1550 builder.DrawCircle(DlPoint(-300, 0), 100, circle_paint);
1551 builder.Restore();
1552
1553 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1554 }
1555
1556 // Render a white circle at the top left corner of the screen.
1557 TEST_P(AiksTest,
1558 MatrixImageFilterDoesntCullWhenScaledAndTranslatedFromOffscreen) {
1559 DisplayListBuilder builder;
1560 builder.Scale(GetContentScale().x, GetContentScale().y);
1561 builder.Translate(100, 100);
1562 // Draw a circle in a SaveLayer at -300, but move it back on-screen with a
1563 // +300 translation applied by a SaveLayer image filter.
1564
1565 DlPaint paint;
1566 paint.setImageFilter(DlImageFilter::MakeMatrix(
1567 DlMatrix::MakeTranslation({300, 0}) * DlMatrix::MakeScale({2, 2, 1}),
1568 DlImageSampling::kNearestNeighbor));
1569 builder.SaveLayer(std::nullopt, &paint);
1570
1571 DlPaint circle_paint;
1572 circle_paint.setColor(DlColor::kGreen());
1573 builder.DrawCircle(DlPoint(-150, 0), 50, circle_paint);
1574 builder.Restore();
1575
1576 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1577 }
1578
1579 // This should be solid red, if you see a little red box this is broken.
1580 TEST_P(AiksTest, ClearColorOptimizationWhenSubpassIsBiggerThanParentPass) {
1581 SetWindowSize({400, 400});
1582 DisplayListBuilder builder;
1583
1584 builder.Scale(GetContentScale().x, GetContentScale().y);
1585
1586 DlPaint paint;
1587 paint.setColor(DlColor::kRed());
1588 builder.DrawRect(DlRect::MakeLTRB(200, 200, 300, 300), paint);
1589
1590 paint.setImageFilter(DlImageFilter::MakeMatrix(DlMatrix::MakeScale({2, 2, 1}),
1591 DlImageSampling::kLinear));
1592 builder.SaveLayer(std::nullopt, &paint);
1593 // Draw a rectangle that would fully cover the parent pass size, but not
1594 // the subpass that it is rendered in.
1595 paint.setColor(DlColor::kGreen());
1596 builder.DrawRect(DlRect::MakeLTRB(0, 0, 400, 400), paint);
1597 // Draw a bigger rectangle to force the subpass to be bigger.
1598
1599 paint.setColor(DlColor::kRed());
1600 builder.DrawRect(DlRect::MakeLTRB(0, 0, 800, 800), paint);
1601 builder.Restore();
1602
1603 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1604 }
1605
1606 TEST_P(AiksTest, EmptySaveLayerIgnoresPaint) {
1607 DisplayListBuilder builder;
1608 builder.Scale(GetContentScale().x, GetContentScale().y);
1609
1610 DlPaint paint;
1611 paint.setColor(DlColor::kRed());
1612 builder.DrawPaint(paint);
1613 builder.ClipRect(DlRect::MakeXYWH(100, 100, 200, 200));
1614 paint.setColor(DlColor::kBlue());
1615 builder.SaveLayer(std::nullopt, &paint);
1616 builder.Restore();
1617
1618 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1619 }
1620
1621 TEST_P(AiksTest, EmptySaveLayerRendersWithClear) {
1622 DisplayListBuilder builder;
1623 builder.Scale(GetContentScale().x, GetContentScale().y);
1624 auto image = DlImageImpeller::Make(CreateTextureForFixture("airplane.jpg"));
1625 builder.DrawImage(image, DlPoint(10, 10), {});
1626 builder.ClipRect(DlRect::MakeXYWH(100, 100, 200, 200));
1627
1628 DlPaint paint;
1629 paint.setBlendMode(DlBlendMode::kClear);
1630 builder.SaveLayer(std::nullopt, &paint);
1631 builder.Restore();
1632
1633 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1634 }
1635
1636 TEST_P(AiksTest,
1637 CanPerformSaveLayerWithBoundsAndLargerIntermediateIsNotAllocated) {
1638 DisplayListBuilder builder;
1639
1640 DlPaint red;
1641 red.setColor(DlColor::kRed());
1642
1643 DlPaint green;
1644 green.setColor(DlColor::kGreen());
1645
1646 DlPaint blue;
1647 blue.setColor(DlColor::kBlue());
1648
1649 DlPaint save;
1650 save.setColor(DlColor::kBlack().modulateOpacity(0.5));
1651
1652 DlRect huge_bounds = DlRect::MakeXYWH(0, 0, 100000, 100000);
1653 builder.SaveLayer(huge_bounds, &save);
1654
1655 builder.DrawRect(DlRect::MakeXYWH(0, 0, 100, 100), red);
1656 builder.DrawRect(DlRect::MakeXYWH(10, 10, 100, 100), green);
1657 builder.DrawRect(DlRect::MakeXYWH(20, 20, 100, 100), blue);
1658
1659 builder.Restore();
1660
1661 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1662 }
1663
1664 // This makes sure the WideGamut named tests use 16bit float pixel format.
1665 TEST_P(AiksTest, FormatWideGamut) {
1666 EXPECT_EQ(GetContext()->GetCapabilities()->GetDefaultColorFormat(),
1667 PixelFormat::kB10G10R10A10XR);
1668 }
1669
1670 TEST_P(AiksTest, FormatSRGB) {
1671 PixelFormat pixel_format =
1672 GetContext()->GetCapabilities()->GetDefaultColorFormat();
1673 EXPECT_TRUE(pixel_format == PixelFormat::kR8G8B8A8UNormInt ||
1674 pixel_format == PixelFormat::kB8G8R8A8UNormInt)
1675 << "pixel format: " << PixelFormatToString(pixel_format);
1676 }
1677
1678 TEST_P(AiksTest, CoordinateConversionsAreCorrect) {
1679 DisplayListBuilder builder;
1680
1681 // Render a texture directly.
1682 {
1683 auto image = DlImageImpeller::Make(CreateTextureForFixture("kalimba.jpg"));
1684
1685 builder.Save();
1686 builder.Translate(100, 200);
1687 builder.Scale(0.5, 0.5);
1688 builder.DrawImage(image, DlPoint(100.0, 100.0),
1689 DlImageSampling::kNearestNeighbor);
1690 builder.Restore();
1691 }
1692
1693 // Render an offscreen rendered texture.
1694 {
1695 DlPaint alpha;
1696 alpha.setColor(DlColor::kRed().modulateOpacity(0.5));
1697
1698 builder.SaveLayer(std::nullopt, &alpha);
1699
1700 DlPaint paint;
1701 paint.setColor(DlColor::kRed());
1702 builder.DrawRect(DlRect::MakeXYWH(000, 000, 100, 100), paint);
1703 paint.setColor(DlColor::kGreen());
1704 builder.DrawRect(DlRect::MakeXYWH(020, 020, 100, 100), paint);
1705 paint.setColor(DlColor::kBlue());
1706 builder.DrawRect(DlRect::MakeXYWH(040, 040, 100, 100), paint);
1707
1708 builder.Restore();
1709 }
1710
1711 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1712 }
1713
1714 TEST_P(AiksTest, CanPerformFullScreenMSAA) {
1715 DisplayListBuilder builder;
1716
1717 DlPaint paint;
1718 paint.setColor(DlColor::kRed());
1719 builder.DrawCircle(DlPoint(250, 250), 125, paint);
1720
1721 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1722 }
1723
1724 TEST_P(AiksTest, CanPerformSkew) {
1725 DisplayListBuilder builder;
1726
1727 DlPaint red;
1728 red.setColor(DlColor::kRed());
1729 builder.Skew(2, 5);
1730 builder.DrawRect(DlRect::MakeXYWH(0, 0, 100, 100), red);
1731
1732 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1733 }
1734
1735 TEST_P(AiksTest, CanPerformSaveLayerWithBounds) {
1736 DisplayListBuilder builder;
1737
1738 DlPaint save;
1739 save.setColor(DlColor::kBlack());
1740
1741 DlRect save_bounds = DlRect::MakeXYWH(0, 0, 50, 50);
1742 builder.SaveLayer(save_bounds, &save);
1743
1744 DlPaint paint;
1745 paint.setColor(DlColor::kRed());
1746 builder.DrawRect(DlRect::MakeXYWH(0, 0, 100, 100), paint);
1747 paint.setColor(DlColor::kGreen());
1748 builder.DrawRect(DlRect::MakeXYWH(10, 10, 100, 100), paint);
1749 paint.setColor(DlColor::kBlue());
1750 builder.DrawRect(DlRect::MakeXYWH(20, 20, 100, 100), paint);
1751
1752 builder.Restore();
1753
1754 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1755 }
1756
1757 TEST_P(AiksTest, FilledRoundRectPathsRenderCorrectly) {
1758 DisplayListBuilder builder;
1759 builder.Scale(GetContentScale().x, GetContentScale().y);
1760
1761 DlPaint paint;
1762 const int color_count = 3;
1763 DlColor colors[color_count] = {
1764 DlColor::kBlue(),
1765 DlColor::kGreen(),
1766 DlColor::ARGB(1.0, 220.0f / 255.0f, 20.0f / 255.0f, 60.0f / 255.0f),
1767 };
1768
1769 paint.setColor(DlColor::kWhite());
1770 builder.DrawPaint(paint);
1771
1772 auto draw_rrect_as_path = [&builder](const DlRect& rect, Scalar x, Scalar y,
1773 const DlPaint& paint) {
1774 builder.DrawPath(DlPath::MakeRoundRectXY(rect, x, y), paint);
1775 };
1776
1777 int c_index = 0;
1778 for (int i = 0; i < 4; i++) {
1779 for (int j = 0; j < 4; j++) {
1780 paint.setColor(colors[(c_index++) % color_count]);
1781 draw_rrect_as_path(DlRect::MakeXYWH(i * 100 + 10, j * 100 + 20, 80, 80),
1782 i * 5 + 10, j * 5 + 10, paint);
1783 }
1784 }
1785 paint.setColor(colors[(c_index++) % color_count]);
1786 draw_rrect_as_path(DlRect::MakeXYWH(10, 420, 380, 80), 40, 40, paint);
1787 paint.setColor(colors[(c_index++) % color_count]);
1788 draw_rrect_as_path(DlRect::MakeXYWH(410, 20, 80, 380), 40, 40, paint);
1789
1790 std::vector<DlColor> gradient_colors = {
1791 DlColor::RGBA(0x1f / 255.0, 0.0, 0x5c / 255.0, 1.0),
1792 DlColor::RGBA(0x5b / 255.0, 0.0, 0x60 / 255.0, 1.0),
1793 DlColor::RGBA(0x87 / 255.0, 0x01 / 255.0, 0x60 / 255.0, 1.0),
1794 DlColor::RGBA(0xac / 255.0, 0x25 / 255.0, 0x53 / 255.0, 1.0),
1795 DlColor::RGBA(0xe1 / 255.0, 0x6b / 255.0, 0x5c / 255.0, 1.0),
1796 DlColor::RGBA(0xf3 / 255.0, 0x90 / 255.0, 0x60 / 255.0, 1.0),
1797 DlColor::RGBA(0xff / 255.0, 0xb5 / 255.0, 0x6b / 250.0, 1.0)};
1798 std::vector<Scalar> stops = {
1799 0.0,
1800 (1.0 / 6.0) * 1,
1801 (1.0 / 6.0) * 2,
1802 (1.0 / 6.0) * 3,
1803 (1.0 / 6.0) * 4,
1804 (1.0 / 6.0) * 5,
1805 1.0,
1806 };
1807 auto texture = DlImageImpeller::Make(
1808 CreateTextureForFixture("airplane.jpg",
1809 /*enable_mipmapping=*/true));
1810
1811 paint.setColor(DlColor::kWhite().modulateOpacity(0.1));
1812 paint.setColorSource(DlColorSource::MakeRadial(
1813 /*center=*/DlPoint(550, 550),
1814 /*radius=*/75,
1815 /*stop_count=*/gradient_colors.size(),
1816 /*colors=*/gradient_colors.data(),
1817 /*stops=*/stops.data(),
1818 /*tile_mode=*/DlTileMode::kMirror));
1819 for (int i = 1; i <= 10; i++) {
1820 int j = 11 - i;
1821 draw_rrect_as_path(DlRect::MakeLTRB(550 - i * 20, 550 - j * 20, //
1822 550 + i * 20, 550 + j * 20),
1823 i * 10, j * 10, paint);
1824 }
1825 paint.setColor(DlColor::kWhite().modulateOpacity(0.5));
1826 paint.setColorSource(DlColorSource::MakeRadial(
1827 /*center=*/DlPoint(200, 650),
1828 /*radius=*/75,
1829 /*stop_count=*/gradient_colors.size(),
1830 /*colors=*/gradient_colors.data(),
1831 /*stops=*/stops.data(),
1832 /*tile_mode=*/DlTileMode::kMirror));
1833 draw_rrect_as_path(DlRect::MakeLTRB(100, 610, 300, 690), 40, 40, paint);
1834 draw_rrect_as_path(DlRect::MakeLTRB(160, 550, 240, 750), 40, 40, paint);
1835
1836 auto matrix = DlMatrix::MakeTranslation({520, 20});
1837 paint.setColor(DlColor::kWhite().modulateOpacity(0.1));
1838 paint.setColorSource(DlColorSource::MakeImage(
1839 texture, DlTileMode::kRepeat, DlTileMode::kRepeat,
1840 DlImageSampling::kMipmapLinear, &matrix));
1841 for (int i = 1; i <= 10; i++) {
1842 int j = 11 - i;
1843 draw_rrect_as_path(DlRect::MakeLTRB(720 - i * 20, 220 - j * 20, //
1844 720 + i * 20, 220 + j * 20),
1845 i * 10, j * 10, paint);
1846 }
1847 matrix = DlMatrix::MakeTranslation({800, 300});
1848 paint.setColor(DlColor::kWhite().modulateOpacity(0.5));
1849 paint.setColorSource(DlColorSource::MakeImage(
1850 texture, DlTileMode::kRepeat, DlTileMode::kRepeat,
1851 DlImageSampling::kMipmapLinear, &matrix));
1852
1853 draw_rrect_as_path(DlRect::MakeLTRB(800, 410, 1000, 490), 40, 40, paint);
1854 draw_rrect_as_path(DlRect::MakeLTRB(860, 350, 940, 550), 40, 40, paint);
1855
1856 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1857 }
1858
1859 TEST_P(AiksTest, CoverageOriginShouldBeAccountedForInSubpasses) {
1860 auto callback = [&]() -> sk_sp<DisplayList> {
1861 DisplayListBuilder builder;
1862 builder.Scale(GetContentScale().x, GetContentScale().y);
1863
1864 DlPaint alpha;
1865 alpha.setColor(DlColor::kRed().modulateOpacity(0.5));
1866
1867 auto current = Point{25, 25};
1868 const auto offset = Point{25, 25};
1869 const auto size = Size(100, 100);
1870
1871 static PlaygroundPoint point_a(Point(40, 40), 10, Color::White());
1872 static PlaygroundPoint point_b(Point(160, 160), 10, Color::White());
1873 auto [b0, b1] = DrawPlaygroundLine(point_a, point_b);
1874 DlRect bounds = DlRect::MakeLTRB(b0.x, b0.y, b1.x, b1.y);
1875
1876 DlPaint stroke_paint;
1877 stroke_paint.setColor(DlColor::kYellow());
1878 stroke_paint.setStrokeWidth(5);
1879 stroke_paint.setDrawStyle(DlDrawStyle::kStroke);
1880 builder.DrawRect(bounds, stroke_paint);
1881
1882 builder.SaveLayer(bounds, &alpha);
1883
1884 DlPaint paint;
1885 paint.setColor(DlColor::kRed());
1886 builder.DrawRect(
1887 DlRect::MakeXYWH(current.x, current.y, size.width, size.height), paint);
1888
1889 paint.setColor(DlColor::kGreen());
1890 current += offset;
1891 builder.DrawRect(
1892 DlRect::MakeXYWH(current.x, current.y, size.width, size.height), paint);
1893
1894 paint.setColor(DlColor::kBlue());
1895 current += offset;
1896 builder.DrawRect(
1897 DlRect::MakeXYWH(current.x, current.y, size.width, size.height), paint);
1898
1899 builder.Restore();
1900
1901 return builder.Build();
1902 };
1903
1904 ASSERT_TRUE(OpenPlaygroundHere(callback));
1905 }
1906
1907 TEST_P(AiksTest, SaveLayerDrawsBehindSubsequentEntities) {
1908 // Compare with https://fiddle.skia.org/c/9e03de8567ffb49e7e83f53b64bcf636
1909 DisplayListBuilder builder;
1910 DlPaint paint;
1911
1912 paint.setColor(DlColor::kBlack());
1913 DlRect rect = DlRect::MakeXYWH(25, 25, 25, 25);
1914 builder.DrawRect(rect, paint);
1915
1916 builder.Translate(10, 10);
1917
1918 DlPaint save_paint;
1919 builder.SaveLayer(std::nullopt, &save_paint);
1920
1921 paint.setColor(DlColor::kGreen());
1922 builder.DrawRect(rect, paint);
1923
1924 builder.Restore();
1925
1926 builder.Translate(10, 10);
1927 paint.setColor(DlColor::kRed());
1928 builder.DrawRect(rect, paint);
1929
1930 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1931 }
1932
1933 TEST_P(AiksTest, SiblingSaveLayerBoundsAreRespected) {
1934 DisplayListBuilder builder;
1935 DlPaint paint;
1936 DlRect rect = DlRect::MakeXYWH(0, 0, 1000, 1000);
1937
1938 // Black, green, and red squares offset by [10, 10].
1939 {
1940 DlPaint save_paint;
1941 DlRect bounds = DlRect::MakeXYWH(25, 25, 25, 25);
1942 builder.SaveLayer(bounds, &save_paint);
1943 paint.setColor(DlColor::kBlack());
1944 builder.DrawRect(rect, paint);
1945 builder.Restore();
1946 }
1947
1948 {
1949 DlPaint save_paint;
1950 DlRect bounds = DlRect::MakeXYWH(35, 35, 25, 25);
1951 builder.SaveLayer(bounds, &save_paint);
1952 paint.setColor(DlColor::kGreen());
1953 builder.DrawRect(rect, paint);
1954 builder.Restore();
1955 }
1956
1957 {
1958 DlPaint save_paint;
1959 DlRect bounds = DlRect::MakeXYWH(45, 45, 25, 25);
1960 builder.SaveLayer(bounds, &save_paint);
1961 paint.setColor(DlColor::kRed());
1962 builder.DrawRect(rect, paint);
1963 builder.Restore();
1964 }
1965
1966 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1967 }
1968
1969 TEST_P(AiksTest, CanRenderClippedLayers) {
1970 DisplayListBuilder builder;
1971
1972 DlPaint paint;
1973 paint.setColor(DlColor::kWhite());
1974 builder.DrawPaint(paint);
1975
1976 // Draw a green circle on the screen.
1977 {
1978 // Increase the clip depth for the savelayer to contend with.
1979 DlPath path = DlPath::MakeCircle(DlPoint(100, 100), 50);
1980 builder.ClipPath(path);
1981
1982 DlRect bounds = DlRect::MakeXYWH(50, 50, 100, 100);
1983 DlPaint save_paint;
1984 builder.SaveLayer(bounds, &save_paint);
1985
1986 // Fill the layer with white.
1987 paint.setColor(DlColor::kWhite());
1988 builder.DrawRect(DlRect::MakeSize(DlSize(400, 400)), paint);
1989 // Fill the layer with green, but do so with a color blend that can't be
1990 // collapsed into the parent pass.
1991 paint.setColor(DlColor::kGreen());
1992 paint.setBlendMode(DlBlendMode::kHardLight);
1993 builder.DrawRect(DlRect::MakeSize(DlSize(400, 400)), paint);
1994 }
1995
1996 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
1997 }
1998
1999 TEST_P(AiksTest, SaveLayerFiltersScaleWithTransform) {
2000 DisplayListBuilder builder;
2001
2002 builder.Scale(GetContentScale().x, GetContentScale().y);
2003 builder.Translate(100, 100);
2004
2005 auto texture = DlImageImpeller::Make(CreateTextureForFixture("boston.jpg"));
2006 auto draw_image_layer = [&builder, &texture](const DlPaint& paint) {
2007 builder.SaveLayer(std::nullopt, &paint);
2008 builder.DrawImage(texture, DlPoint(), DlImageSampling::kLinear);
2009 builder.Restore();
2010 };
2011
2012 DlPaint effect_paint;
2013 effect_paint.setMaskFilter(DlBlurMaskFilter::Make(DlBlurStyle::kNormal, 6));
2014 draw_image_layer(effect_paint);
2015
2016 builder.Translate(300, 300);
2017 builder.Scale(3, 3);
2018 draw_image_layer(effect_paint);
2019
2020 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
2021 }
2022
2023 TEST_P(AiksTest, FastEllipticalRRectMaskBlursRenderCorrectly) {
2024 DisplayListBuilder builder;
2025
2026 builder.Scale(GetContentScale().x, GetContentScale().y);
2027 DlPaint paint;
2028 paint.setMaskFilter(DlBlurMaskFilter::Make(DlBlurStyle::kNormal, 1));
2029
2030 DlPaint save_paint;
2031 save_paint.setColor(DlColor::kWhite());
2032 builder.DrawPaint(save_paint);
2033
2034 paint.setColor(DlColor::kBlue());
2035 for (int i = 0; i < 5; i++) {
2036 Scalar y = i * 125;
2037 Scalar y_radius = i * 15;
2038 for (int j = 0; j < 5; j++) {
2039 Scalar x = j * 125;
2040 Scalar x_radius = j * 15;
2041 builder.DrawRoundRect(
2042 DlRoundRect::MakeRectXY(
2043 DlRect::MakeXYWH(x + 50, y + 50, 100.0f, 100.0f), //
2044 x_radius, y_radius),
2045 paint);
2046 }
2047 }
2048
2049 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
2050 }
2051
2052 TEST_P(AiksTest, PipelineBlendSingleParameter) {
2053 DisplayListBuilder builder;
2054
2055 // Should render a green square in the middle of a blue circle.
2056 DlPaint paint;
2057 builder.SaveLayer(std::nullopt, &paint);
2058 {
2059 builder.Translate(100, 100);
2060 paint.setColor(DlColor::kBlue());
2061 builder.DrawCircle(DlPoint(200, 200), 200, paint);
2062 builder.ClipRect(DlRect::MakeXYWH(100, 100, 200, 200));
2063
2064 paint.setColor(DlColor::kGreen());
2065 paint.setBlendMode(DlBlendMode::kSrcOver);
2066 paint.setImageFilter(DlImageFilter::MakeColorFilter(
2067 DlColorFilter::MakeBlend(DlColor::kWhite(), DlBlendMode::kDst)));
2068 builder.DrawCircle(DlPoint(200, 200), 200, paint);
2069 builder.Restore();
2070 }
2071
2072 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
2073 }
2074
2075 // Creates an image matrix filter that scales large content such that it would
2076 // exceed the max texture size. See
2077 // https://github.com/flutter/flutter/issues/128912
2078 TEST_P(AiksTest, MassiveScalingMatrixImageFilter) {
2079 if (GetBackend() == PlaygroundBackend::kVulkan) {
2080 GTEST_SKIP() << "Swiftshader is running out of memory on this example.";
2081 }
2082 DisplayListBuilder builder(DlRect::MakeSize(DlSize(1000, 1000)));
2083
2084 auto filter = DlImageFilter::MakeMatrix(
2085 DlMatrix::MakeScale({0.001, 0.001, 1}), DlImageSampling::kLinear);
2086
2087 DlPaint paint;
2088 paint.setImageFilter(filter);
2089 builder.SaveLayer(std::nullopt, &paint);
2090 {
2091 DlPaint paint;
2092 paint.setColor(DlColor::kRed());
2093 builder.DrawRect(DlRect::MakeLTRB(0, 0, 100000, 100000), paint);
2094 }
2095 builder.Restore();
2096
2097 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
2098 }
2099
2100 TEST_P(AiksTest, NoDimplesInRRectPath) {
2101 Scalar width = 200.f;
2102 Scalar height = 60.f;
2103 Scalar corner = 1.f;
2104 auto callback = [&]() -> sk_sp<DisplayList> {
2105 if (AiksTest::ImGuiBegin("Controls", nullptr,
2106 ImGuiWindowFlags_AlwaysAutoResize)) {
2107 ImGui::SliderFloat("width", &width, 0, 200);
2108 ImGui::SliderFloat("height", &height, 0, 200);
2109 ImGui::SliderFloat("corner", &corner, 0, 1);
2110 ImGui::End();
2111 }
2112
2113 DisplayListBuilder builder;
2114 builder.Scale(GetContentScale().x, GetContentScale().y);
2115
2116 DlPaint background_paint;
2117 background_paint.setColor(DlColor(1, 0.1, 0.1, 0.1, DlColorSpace::kSRGB));
2118 builder.DrawPaint(background_paint);
2119
2120 std::vector<DlColor> colors = {DlColor::kRed(), DlColor::kBlue()};
2121 std::vector<Scalar> stops = {0.0, 1.0};
2122
2123 DlPaint paint;
2124 auto gradient = DlColorSource::MakeLinear(DlPoint(0, 0), DlPoint(200, 200),
2125 2, colors.data(), stops.data(),
2126 DlTileMode::kClamp);
2127 paint.setColorSource(gradient);
2128 paint.setColor(DlColor::kWhite());
2129 paint.setDrawStyle(DlDrawStyle::kStroke);
2130 paint.setStrokeWidth(20);
2131
2132 builder.Save();
2133 builder.Translate(100, 100);
2134
2135 Scalar corner_x = ((1 - corner) * 50) + 50;
2136 Scalar corner_y = corner * 50 + 50;
2137 DlRoundRect rrect = DlRoundRect::MakeRectXY(
2138 DlRect::MakeXYWH(0, 0, width, height), corner_x, corner_y);
2139 builder.DrawRoundRect(rrect, paint);
2140 builder.Restore();
2141 return builder.Build();
2142 };
2143 ASSERT_TRUE(OpenPlaygroundHere(callback));
2144 }
2145
2146 TEST_P(AiksTest, BackdropFilterOverUnclosedClip) {
2147 DisplayListBuilder builder;
2148
2149 builder.DrawPaint(DlPaint().setColor(DlColor::kWhite()));
2150 builder.Save();
2151 {
2152 builder.ClipRect(DlRect::MakeLTRB(100, 100, 800, 800));
2153
2154 builder.Save();
2155 {
2156 builder.ClipRect(DlRect::MakeLTRB(600, 600, 800, 800));
2157 builder.DrawPaint(DlPaint().setColor(DlColor::kRed()));
2158 builder.DrawPaint(DlPaint().setColor(DlColor::kBlue().withAlphaF(0.5)));
2159 builder.ClipRect(DlRect::MakeLTRB(700, 700, 750, 800));
2160 builder.DrawPaint(DlPaint().setColor(DlColor::kRed().withAlphaF(0.5)));
2161 }
2162 builder.Restore();
2163
2164 auto image_filter = DlImageFilter::MakeBlur(10, 10, DlTileMode::kDecal);
2165 builder.SaveLayer(std::nullopt, nullptr, image_filter.get());
2166 }
2167 builder.Restore();
2168 builder.DrawCircle(DlPoint(100, 100), 100,
2169 DlPaint().setColor(DlColor::kAqua()));
2170
2171 ASSERT_TRUE(OpenPlaygroundHere(builder.Build()));
2172 }
2173
2174 } // namespace testing
2175 } // namespace impeller
full_circles
bool full_circles
Definition: aiks_dl_basic_unittests.cc:831
vertical_scale
Scalar vertical_scale
Definition: aiks_dl_basic_unittests.cc:833
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Definition: aiks_dl_basic_unittests.cc:832
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bool use_center
Definition: aiks_dl_basic_unittests.cc:830
aiks_unittests.h
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Definition: aiks_playground.h:16
impeller::AiksPlayground::ImGuiBegin
static bool ImGuiBegin(const char *name, bool *p_open, ImGuiWindowFlags flags)
Definition: aiks_playground.cc:30
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Definition: dl_image_impeller.cc:23
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impeller::testing::AiksTest
AiksPlayground AiksTest
Definition: aiks_unittests.h:17
impeller::testing::TEST_P
TEST_P(AiksTest, DrawAtlasNoColor)
Definition: aiks_dl_atlas_unittests.cc:59
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flutter::DlRect DlRect
Definition: dl_dispatcher.h:25
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float Scalar
Definition: scalar.h:19
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std::tuple< Point, Point > DrawPlaygroundLine(PlaygroundPoint &point_a, PlaygroundPoint &point_b)
Definition: widgets.cc:51
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constexpr float kEhCloseEnough
Definition: constants.h:57
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TRect< Scalar > Rect
Definition: rect.h:788
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Definition: point.h:327
impeller::PixelFormat
PixelFormat
The Pixel formats supported by Impeller. The naming convention denotes the usage of the component,...
Definition: formats.h:99
impeller::PixelFormat::kB10G10R10A10XR
@ kB10G10R10A10XR
impeller::PixelFormat::kB8G8R8A8UNormInt
@ kB8G8R8A8UNormInt
impeller::PixelFormat::kR8G8B8A8UNormInt
@ kR8G8B8A8UNormInt
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Definition: dl_dispatcher.h:24
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Definition: dl_dispatcher.h:29
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@ kVulkan
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Definition: size.h:159
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constexpr float kSqrt2
Definition: constants.h:47
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Definition: formats.h:140
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Definition: tessellator.cc:38
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static constexpr Color White()
Definition: color.h:264
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A 4x4 matrix using column-major storage.
Definition: matrix.h:37
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static constexpr Matrix MakeTranslation(const Vector3 &t)
Definition: matrix.h:95
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static Matrix MakeRotationY(Radians r)
Definition: matrix.h:208
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constexpr Quad Transform(const Quad &quad) const
Definition: matrix.h:623
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Definition: widgets.h:21
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Definition: scalar.h:44
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static RoundRect MakeRectXY(const Rect &rect, Scalar x_radius, Scalar y_radius)
Definition: round_rect.h:31
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Definition: rounding_radii.h:14
impeller::RoundingRadii::top_left
Size top_left
Definition: rounding_radii.h:15
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impeller::TPoint::y
Type y
Definition: point.h:31
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Type x
Definition: point.h:30
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constexpr static TRect MakeLTRB(Type left, Type top, Type right, Type bottom)
Definition: rect.h:129
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Definition: size.h:25
start
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Definition: tessellator_libtess.cc:62
widgets.h