73 lines
1.7 KiB
C++
73 lines
1.7 KiB
C++
/*
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* This file is part of libsidplayfp, a SID player engine.
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*
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* Copyright (C) 2014-2016 Leandro Nini
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "UnitTest++/UnitTest++.h"
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#include "UnitTest++/TestReporter.h"
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#include "../src/builders/residfp-builder/residfp/Dac.h"
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using namespace UnitTest;
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using namespace reSIDfp;
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#define DAC_BITS 8
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SUITE(Dac)
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{
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void buildDac(float dac[], ChipModel chipModel)
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{
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Dac dacBuilder(DAC_BITS);
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dacBuilder.kinkedDac(chipModel);
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for (unsigned int i = 0; i < (1 << DAC_BITS); i++)
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{
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dac[i] = dacBuilder.getOutput(i);
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}
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}
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bool isDacLinear(ChipModel chipModel)
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{
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float dac[1 << DAC_BITS];
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buildDac(dac, chipModel);
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for (int i = 1; i < (1 << DAC_BITS); i++)
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{
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if (dac[i] <= dac[i-1])
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return false;
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}
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return true;
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}
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TEST(TestDac6581)
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{
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// Test the non-linearity of the 6581 DACs
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CHECK(!isDacLinear(MOS6581));
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}
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TEST(TestDac8580)
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{
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// Test the linearity of the 8580 DACs
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CHECK(isDacLinear(MOS8580));
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}
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}
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