The Tor Browser / file comparison
comparison: gfx/2d/unittest/TestCairo.cpp
gfx/2d/unittest/TestCairo.cpp
- changeset 0
- 6474c204b198
equal
deleted
inserted
replaced
| -1:000000000000 | 0:a604fd882e2f |
|---|---|
| 1 /* Any copyright is dedicated to the Public Domain. | |
| 2 * http://creativecommons.org/publicdomain/zero/1.0/ | |
| 3 */ | |
| 4 | |
| 5 #include "cairo.h" | |
| 6 | |
| 7 #include "gtest/gtest.h" | |
| 8 | |
| 9 namespace mozilla { | |
| 10 namespace layers { | |
| 11 | |
| 12 void TryCircle(double centerX, double centerY, double radius) { | |
| 13 printf("TestCairo:TryArcs centerY %f, radius %f\n",centerY,radius); | |
| 14 | |
| 15 cairo_surface_t *surf = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,8,21); | |
| 16 ASSERT_TRUE(surf != nullptr); | |
| 17 | |
| 18 cairo_t *cairo = cairo_create(surf); | |
| 19 ASSERT_TRUE(cairo != nullptr); | |
| 20 | |
| 21 cairo_set_antialias(cairo, CAIRO_ANTIALIAS_NONE); | |
| 22 cairo_arc(cairo, 0.0, centerY, radius, 0.0, 6.2831853071795862); | |
| 23 cairo_fill_preserve(cairo); | |
| 24 | |
| 25 cairo_surface_destroy(surf); | |
| 26 cairo_destroy(cairo); | |
| 27 } | |
| 28 | |
| 29 TEST(Cairo, Simple) { | |
| 30 TryCircle(0.0, 0.0, 14.0); | |
| 31 TryCircle(0.0, 1.0, 22.4); | |
| 32 TryCircle(1.0, 0.0, 1422.4); | |
| 33 TryCircle(1.0, 1.0, 3422.4); | |
| 34 TryCircle(-10.0, 1.0, -2); | |
| 35 } | |
| 36 | |
| 37 TEST(Cairo, Bug825721) { | |
| 38 // OK: | |
| 39 TryCircle(0.0, 0.0, 8761126469220696064.0); | |
| 40 TryCircle(0.0, 1.0, 8761126469220696064.0); | |
| 41 | |
| 42 // OK: | |
| 43 TryCircle(1.0, 0.0, 5761126469220696064.0); | |
| 44 | |
| 45 // This was the crash in 825721. Note that centerY has to be non-zero, | |
| 46 // and radius has to be not only large, but in particular range. | |
| 47 // 825721 has a band-aid fix, where the crash is inevitable, but does | |
| 48 // not fix the cause. The same code crashes in cairo standalone. | |
| 49 TryCircle(0.0, 1.0, 5761126469220696064.0); | |
| 50 } | |
| 51 | |
| 52 } | |
| 53 } |
