epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2011 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
wjmaclean@chromium.org | ff1ec2f | 2011-02-07 17:48:40 +0000 | [diff] [blame] | 8 | #include "Test.h" |
reed@google.com | 6898d52 | 2012-11-08 22:36:19 +0000 | [diff] [blame^] | 9 | #include "SkRandom.h" |
wjmaclean@chromium.org | ff1ec2f | 2011-02-07 17:48:40 +0000 | [diff] [blame] | 10 | #include "SkRect.h" |
| 11 | |
reed@android.com | d413445 | 2011-02-09 02:24:26 +0000 | [diff] [blame] | 12 | #ifdef SK_SCALAR_IS_FLOAT |
reed@google.com | 534240f | 2011-02-07 19:08:59 +0000 | [diff] [blame] | 13 | static float make_zero() { |
| 14 | return sk_float_sin(0); |
| 15 | } |
reed@android.com | d413445 | 2011-02-09 02:24:26 +0000 | [diff] [blame] | 16 | #endif |
| 17 | |
reed@google.com | 6898d52 | 2012-11-08 22:36:19 +0000 | [diff] [blame^] | 18 | static void test_center(skiatest::Reporter* reporter) { |
| 19 | static const struct { |
| 20 | SkIRect fRect; |
| 21 | SkIPoint fCenter; |
| 22 | } data[] = { |
| 23 | { { 0, 0, 0, 0 }, { 0, 0 } }, |
| 24 | { { 0, 0, 1, 1 }, { 0, 0 } }, |
| 25 | { { -1, -1, 0, 0 }, { -1, -1 } }, |
| 26 | { { 0, 0, 10, 7 }, { 5, 3 } }, |
| 27 | { { 0, 0, 11, 6 }, { 5, 3 } }, |
| 28 | }; |
| 29 | for (size_t index = 0; index < SK_ARRAY_COUNT(data); ++index) { |
| 30 | REPORTER_ASSERT(reporter, |
| 31 | data[index].fRect.centerX() == data[index].fCenter.x()); |
| 32 | REPORTER_ASSERT(reporter, |
| 33 | data[index].fRect.centerY() == data[index].fCenter.y()); |
| 34 | } |
| 35 | |
| 36 | SkRandom rand; |
| 37 | for (int i = 0; i < 10000; ++i) { |
| 38 | SkIRect r; |
| 39 | |
| 40 | r.set(rand.nextS() >> 2, rand.nextS() >> 2, |
| 41 | rand.nextS() >> 2, rand.nextS() >> 2); |
| 42 | int cx = r.centerX(); |
| 43 | int cy = r.centerY(); |
| 44 | REPORTER_ASSERT(reporter, (r.left() + r.right() >> 1) == cx); |
| 45 | REPORTER_ASSERT(reporter, (r.top() + r.bottom() >> 1) == cy); |
| 46 | } |
| 47 | } |
| 48 | |
reed@android.com | d413445 | 2011-02-09 02:24:26 +0000 | [diff] [blame] | 49 | static void check_invalid(skiatest::Reporter* reporter, |
| 50 | SkScalar l, SkScalar t, SkScalar r, SkScalar b) { |
| 51 | SkRect rect; |
| 52 | rect.set(l, t, r, b); |
reed@google.com | 1607863 | 2011-12-06 18:56:37 +0000 | [diff] [blame] | 53 | REPORTER_ASSERT(reporter, !rect.isFinite()); |
reed@android.com | d413445 | 2011-02-09 02:24:26 +0000 | [diff] [blame] | 54 | } |
reed@google.com | 534240f | 2011-02-07 19:08:59 +0000 | [diff] [blame] | 55 | |
reed@google.com | 1607863 | 2011-12-06 18:56:37 +0000 | [diff] [blame] | 56 | // Tests that isFinite() will reject any rect with +/-inf values |
wjmaclean@chromium.org | ff1ec2f | 2011-02-07 17:48:40 +0000 | [diff] [blame] | 57 | // as one of its coordinates. |
| 58 | static void TestInfRect(skiatest::Reporter* reporter) { |
reed@android.com | d413445 | 2011-02-09 02:24:26 +0000 | [diff] [blame] | 59 | #ifdef SK_SCALAR_IS_FLOAT |
reed@google.com | 7b463ac | 2012-05-16 13:35:36 +0000 | [diff] [blame] | 60 | float inf = 1 / make_zero(); // infinity |
| 61 | float nan = inf * 0; |
| 62 | SkASSERT(!(nan == nan)); |
reed@android.com | d413445 | 2011-02-09 02:24:26 +0000 | [diff] [blame] | 63 | #else |
reed@google.com | 7b463ac | 2012-05-16 13:35:36 +0000 | [diff] [blame] | 64 | SkFixed inf = SK_FixedNaN; |
| 65 | SkFixed nan = SK_FixedNaN; |
reed@android.com | d413445 | 2011-02-09 02:24:26 +0000 | [diff] [blame] | 66 | #endif |
| 67 | SkScalar small = SkIntToScalar(10); |
| 68 | SkScalar big = SkIntToScalar(100); |
wjmaclean@chromium.org | ff1ec2f | 2011-02-07 17:48:40 +0000 | [diff] [blame] | 69 | |
reed@google.com | 7b463ac | 2012-05-16 13:35:36 +0000 | [diff] [blame] | 70 | REPORTER_ASSERT(reporter, SkRect::MakeEmpty().isFinite()); |
| 71 | |
reed@android.com | d413445 | 2011-02-09 02:24:26 +0000 | [diff] [blame] | 72 | SkRect rect = SkRect::MakeXYWH(small, small, big, big); |
reed@google.com | 1607863 | 2011-12-06 18:56:37 +0000 | [diff] [blame] | 73 | REPORTER_ASSERT(reporter, rect.isFinite()); |
wjmaclean@chromium.org | ff1ec2f | 2011-02-07 17:48:40 +0000 | [diff] [blame] | 74 | |
reed@google.com | 7b463ac | 2012-05-16 13:35:36 +0000 | [diff] [blame] | 75 | const SkScalar invalid[] = { nan, inf, -inf }; |
| 76 | for (size_t i = 0; i < SK_ARRAY_COUNT(invalid); ++i) { |
| 77 | check_invalid(reporter, small, small, big, invalid[i]); |
| 78 | check_invalid(reporter, small, small, invalid[i], big); |
| 79 | check_invalid(reporter, small, invalid[i], big, big); |
| 80 | check_invalid(reporter, invalid[i], small, big, big); |
| 81 | } |
reed@google.com | 6898d52 | 2012-11-08 22:36:19 +0000 | [diff] [blame^] | 82 | |
| 83 | test_center(reporter); |
wjmaclean@chromium.org | ff1ec2f | 2011-02-07 17:48:40 +0000 | [diff] [blame] | 84 | } |
| 85 | |
| 86 | // need tests for SkStrSearch |
| 87 | |
| 88 | #include "TestClassDef.h" |
| 89 | DEFINE_TESTCLASS("InfRect", InfRectTestClass, TestInfRect) |