Chris Craik | 261725f | 2016-02-29 12:52:33 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <gtest/gtest.h> |
| 18 | |
| 19 | #include "Matrix.h" |
| 20 | #include "Rect.h" |
| 21 | |
| 22 | using namespace android::uirenderer; |
| 23 | |
Chris Craik | 034a10b | 2016-03-09 16:03:21 -0800 | [diff] [blame^] | 24 | TEST(Matrix, mapRect_emptyScaleSkew) { |
Chris Craik | 261725f | 2016-02-29 12:52:33 -0800 | [diff] [blame] | 25 | // Skew, so we don't hit identity/translate/simple fast paths |
Chris Craik | 034a10b | 2016-03-09 16:03:21 -0800 | [diff] [blame^] | 26 | Matrix4 scaleMatrix; |
| 27 | scaleMatrix.loadScale(10, 10, 1); |
| 28 | scaleMatrix.skew(0.1f, 0.1f); |
Chris Craik | 261725f | 2016-02-29 12:52:33 -0800 | [diff] [blame] | 29 | |
| 30 | // non-zero empty rect, so sorting x/y would make rect non-empty |
Chris Craik | 034a10b | 2016-03-09 16:03:21 -0800 | [diff] [blame^] | 31 | Rect empty(15, 20, 15, 100); |
Chris Craik | 261725f | 2016-02-29 12:52:33 -0800 | [diff] [blame] | 32 | ASSERT_TRUE(empty.isEmpty()); |
Chris Craik | 034a10b | 2016-03-09 16:03:21 -0800 | [diff] [blame^] | 33 | scaleMatrix.mapRect(empty); |
| 34 | EXPECT_EQ(Rect(170, 215, 250, 1015), empty); |
| 35 | EXPECT_FALSE(empty.isEmpty()) |
| 36 | << "Empty 'line' rect doesn't remain empty when skewed."; |
| 37 | } |
| 38 | |
| 39 | TEST(Matrix, mapRect_emptyRotate) { |
| 40 | // Skew, so we don't hit identity/translate/simple fast paths |
| 41 | Matrix4 skewMatrix; |
| 42 | skewMatrix.loadRotate(45); |
| 43 | |
| 44 | // non-zero empty rect, so sorting x/y would make rect non-empty |
| 45 | Rect lineRect(0, 100); |
| 46 | ASSERT_TRUE(lineRect.isEmpty()); |
| 47 | skewMatrix.mapRect(lineRect); |
| 48 | EXPECT_FALSE(lineRect.isEmpty()) |
| 49 | << "Empty 'line' rect doesn't remain empty when rotated."; |
Chris Craik | 261725f | 2016-02-29 12:52:33 -0800 | [diff] [blame] | 50 | } |