/* * Copyright 2019 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "include/core/SkPoint.h" #include "include/core/SkTypes.h" #include "include/utils/SkRandom.h" #include "tests/Test.h" #include #if SK_SUPPORT_GPU #include "src/gpu/GrSamplePatternDictionary.h" static SkTArray make_sample_pattern(const std::vector& sampleLocations) { return SkTArray(sampleLocations.data(), sampleLocations.size()); } static SkTArray make_random_sample_pattern(SkRandom* rand) { SkTArray pattern; int count = rand->nextULessThan(20) + 1; pattern.reset(count); for (int i = 0; i < count; ++i) { pattern[i] = SkPoint::Make(rand->nextF(), rand->nextF()); } return pattern; } // This test ensures that the sample pattern dictionary caches and retrieves patterns correctly. DEF_TEST(SamplePatternDictionary, reporter) { SkTArray> testPatterns; testPatterns.push_back() = make_sample_pattern({ // Intel on mac, msaa8, offscreen. {0.562500, 0.312500}, {0.437500, 0.687500}, {0.812500, 0.562500}, {0.312500, 0.187500}, {0.187500, 0.812500}, {0.062500, 0.437500}, {0.687500, 0.937500}, {0.937500, 0.062500} }); testPatterns.push_back() = make_sample_pattern({ // Intel on mac, msaa8, on-screen. {0.562500, 0.687500}, {0.437500, 0.312500}, {0.812500, 0.437500}, {0.312500, 0.812500}, {0.187500, 0.187500}, {0.062500, 0.562500}, {0.687500, 0.062500}, {0.937500, 0.937500} }); testPatterns.push_back() = make_sample_pattern({ // NVIDIA, msaa16. {0.062500, 0.000000}, {0.250000, 0.125000}, {0.187500, 0.375000}, {0.437500, 0.312500}, {0.500000, 0.062500}, {0.687500, 0.187500}, {0.750000, 0.437500}, {0.937500, 0.250000}, {0.000000, 0.500000}, {0.312500, 0.625000}, {0.125000, 0.750000}, {0.375000, 0.875000}, {0.562500, 0.562500}, {0.812500, 0.687500}, {0.625000, 0.812500}, {0.875000, 0.937500} }); testPatterns.push_back() = make_sample_pattern({ // NVIDIA, mixed samples, 16:1. {0.250000, 0.125000}, {0.625000, 0.812500}, {0.500000, 0.062500}, {0.812500, 0.687500}, {0.187500, 0.375000}, {0.875000, 0.937500}, {0.125000, 0.750000}, {0.750000, 0.437500}, {0.937500, 0.250000}, {0.312500, 0.625000}, {0.437500, 0.312500}, {0.000000, 0.500000}, {0.375000, 0.875000}, {0.687500, 0.187500}, {0.062500, 0.000000}, {0.562500, 0.562500} }); SkRandom rand; for (int i = 0; i < 23; ++i) { testPatterns.push_back(make_random_sample_pattern(&rand)); } // Duplicate the initial 4 patterns, with slight differences. testPatterns.push_back(testPatterns[0]); testPatterns.back().back().fX += 0.001f; testPatterns.push_back(testPatterns[1]); testPatterns.back().back().fY -= 0.002f; testPatterns.push_back(testPatterns[2]); testPatterns.back().push_back(SkPoint::Make(.5f, .5f)); testPatterns.push_back(testPatterns[3]); testPatterns.back().pop_back(); for (int i = 0; i < 13; ++i) { testPatterns.push_back(make_random_sample_pattern(&rand)); } GrSamplePatternDictionary dict; for (int i = 0; i < 2; ++i) { for (int j = 0; j < testPatterns.count(); ++j) { for (int k = 0; k < 3; ++k) { const SkTArray& pattern = testPatterns[testPatterns.count() - j - 1]; REPORTER_ASSERT(reporter, j == dict.findOrAssignSamplePatternKey(pattern)); } } } for (int j = 0; j < testPatterns.count(); ++j) { const SkTArray& pattern = testPatterns[testPatterns.count() - j - 1]; REPORTER_ASSERT(reporter, dict.retrieveSampleLocations(j) == pattern); } } #endif