e89a55d154
I didn't apply the changes to a few macro-heavy files as Visual Studio removes all indentation from macros, whereas the indentation can be handy to see nesting.
103 lines
3.9 KiB
C++
103 lines
3.9 KiB
C++
/*******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2015 Matthew Williams and David Williams
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*******************************************************************************/
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#include "TestAmbientOcclusionGenerator.h"
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#include "PolyVox/AmbientOcclusionCalculator.h"
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#include "PolyVox/FilePager.h"
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#include "PolyVox/PagedVolume.h"
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#include "PolyVox/RawVolume.h"
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#include <QtTest>
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using namespace PolyVox;
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class IsVoxelTransparent
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{
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public:
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bool operator()(uint8_t voxel) const
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{
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return voxel == 0;
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}
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};
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bool isVoxelTransparentFunction(uint8_t voxel)
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{
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return voxel == 0;
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}
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void TestAmbientOcclusionGenerator::testExecute()
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{
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const int32_t g_uVolumeSideLength = 64;
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Region region(0, 0, 0, g_uVolumeSideLength - 1, g_uVolumeSideLength - 1, g_uVolumeSideLength - 1);
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//Create empty volume
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RawVolume<uint8_t> volData(region);
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// To test with a PagedVolume instead you can comment ou the above line and use these instead.
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// FilePager<uint8_t>* pFilePager = new FilePager<uint8_t>(".");
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// PagedVolume<uint8_t> volData(pFilePager, 256 * 1024 * 1024, 32);
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//Create two solid walls at opposite sides of the volume
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for (int32_t z = 0; z < g_uVolumeSideLength; z++)
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{
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if ((z < 20) || (z > g_uVolumeSideLength - 20))
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{
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for (int32_t y = 0; y < g_uVolumeSideLength; y++)
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{
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for (int32_t x = 0; x < g_uVolumeSideLength; x++)
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{
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volData.setVoxel(x, y, z, 1);
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}
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}
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}
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}
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//Create an array to store the result. Array can be smaller than the volume by an integer amount.
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const int32_t g_uArraySideLength = g_uVolumeSideLength / 2;
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Array<3, uint8_t> ambientOcclusionResult(g_uArraySideLength, g_uArraySideLength, g_uArraySideLength);
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// Calculate the ambient occlusion values
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IsVoxelTransparent isVoxelTransparent;
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QBENCHMARK{
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calculateAmbientOcclusion(&volData, &ambientOcclusionResult, region, 32.0f, 255, isVoxelTransparent);
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}
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//Check the results by sampling along a line though the centre of the volume. Because
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//of the two walls we added, samples in the middle are darker than those at the edge.
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QCOMPARE(static_cast<int>(ambientOcclusionResult(16, 0, 16)), 178);
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QCOMPARE(static_cast<int>(ambientOcclusionResult(16, 8, 16)), 109);
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QCOMPARE(static_cast<int>(ambientOcclusionResult(16, 16, 16)), 103);
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QCOMPARE(static_cast<int>(ambientOcclusionResult(16, 24, 16)), 123);
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QCOMPARE(static_cast<int>(ambientOcclusionResult(16, 31, 16)), 173);
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//Just run a quick test to make sure that it compiles when taking a function pointer
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calculateAmbientOcclusion(&volData, &ambientOcclusionResult, region, 32.0f, 8, &isVoxelTransparentFunction);
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//Also test it using a lambda
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//calculateAmbientOcclusion(&volData, &ambientOcclusionResult, volData.getEnclosingRegion(), 32.0f, 8, [](uint8_t voxel){return voxel == 0;});
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}
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QTEST_MAIN(TestAmbientOcclusionGenerator)
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