Chris Dalton | 0cfe5e1 | 2021-05-13 10:42:30 -0600 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2021 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "tests/Test.h" |
| 9 | |
| 10 | #include "include/utils/SkRandom.h" |
| 11 | #include "src/gpu/tessellate/GrCullTest.h" |
| 12 | |
| 13 | const SkMatrix gMatrices[] = { |
| 14 | SkMatrix::I(), |
| 15 | SkMatrix::Translate(25, -1000), |
| 16 | SkMatrix::Scale(.5f, 1000.1f), |
| 17 | SkMatrix::MakeAll(1000.1f, .0f, -100, |
| 18 | 0.0f, .5f, -3000, |
| 19 | 0.0f, .0f, 1), |
| 20 | SkMatrix::MakeAll(0, 1, 0, |
| 21 | 1, 0, 0, |
| 22 | 0, 0, 1), |
| 23 | SkMatrix::MakeAll( 2, 7.0f, -100, |
| 24 | -8000, .5f, 2000, |
| 25 | 0, .0f, 1), |
| 26 | }; |
| 27 | |
| 28 | DEF_TEST(CullTestTest, reporter) { |
| 29 | SkRandom rand; |
| 30 | float l=10, t=2000, r=100, b=2064; |
| 31 | SkRect viewportRect{l, t, r, b}; |
| 32 | float valuesL[4] = {l-20, l-10, l+10, l+20}; |
| 33 | float valuesT[4] = {t-20, t-10, t+10, t+20}; |
| 34 | float valuesR[4] = {r+20, r+10, r-10, r-20}; |
| 35 | float valuesB[4] = {b+20, b+10, b-10, b-20}; |
| 36 | for (SkMatrix m : gMatrices) { |
| 37 | GrCullTest cullTest(viewportRect, m); |
| 38 | SkMatrix inverse; |
| 39 | SkAssertResult(m.invert(&inverse)); |
| 40 | for (const float* y : {valuesT, valuesB}) { |
| 41 | for (const float* x : {valuesL, valuesR}) { |
| 42 | for (int i = 0; i < 500; ++i) { |
| 43 | int mask = rand.nextU(); |
| 44 | const SkPoint devPts[4] = {{x[(mask >> 0) & 3], y[(mask >> 2) & 3]}, |
| 45 | {x[(mask >> 4) & 3], y[(mask >> 6) & 3]}, |
| 46 | {x[(mask >> 8) & 3], y[(mask >> 10) & 3]}, |
| 47 | {x[(mask >> 12) & 3], y[(mask >> 14) & 3]}}; |
| 48 | |
| 49 | SkPoint localPts[4]; |
| 50 | inverse.mapPoints(localPts, devPts, 4); |
| 51 | |
| 52 | REPORTER_ASSERT(reporter, |
| 53 | cullTest.isVisible(localPts[0]) == |
| 54 | viewportRect.contains(devPts[0].fX, devPts[0].fY)); |
| 55 | |
| 56 | { |
| 57 | SkRect devBounds3; |
| 58 | devBounds3.setBounds(devPts, 3); |
| 59 | // Outset devBounds because SkRect::intersects returns false on empty, which is NOT |
| 60 | // the behavior we want. |
| 61 | devBounds3.outset(1e-3f, 1e-3f); |
| 62 | REPORTER_ASSERT(reporter, |
| 63 | cullTest.areVisible3(localPts) == viewportRect.intersects(devBounds3)); |
| 64 | } |
| 65 | |
| 66 | { |
| 67 | SkRect devBounds4; |
| 68 | devBounds4.setBounds(devPts, 4); |
| 69 | // Outset devBounds because SkRect::intersects returns false on empty, which is NOT |
| 70 | // the behavior we want. |
| 71 | devBounds4.outset(1e-3f, 1e-3f); |
| 72 | REPORTER_ASSERT(reporter, |
| 73 | cullTest.areVisible4(localPts) == viewportRect.intersects(devBounds4)); |
| 74 | } |
| 75 | }}} |
| 76 | } |
| 77 | } |