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/*
* This file is part of libsidplayfp, a SID player engine.
*
* Copyright (C) 2014-2024 Leandro Nini
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "utpp/utpp.h"
#include "../src/builders/residfp-builder/residfp/Dac.h"
#include "../src/builders/residfp-builder/residfp/Dac.cpp"
using namespace UnitTest;
using namespace reSIDfp;
#define DAC_BITS 8
SUITE(Dac)
{
void buildDac(float dac[], ChipModel chipModel)
{
Dac dacBuilder(DAC_BITS);
dacBuilder.kinkedDac(chipModel);
for (unsigned int i = 0; i < (1 << DAC_BITS); i++)
{
dac[i] = dacBuilder.getOutput(i);
}
}
bool isDacLinear(ChipModel chipModel)
{
float dac[1 << DAC_BITS];
buildDac(dac, chipModel);
for (int i = 1; i < (1 << DAC_BITS); i++)
{
if (dac[i] <= dac[i-1])
return false;
}
return true;
}
TEST(TestDac6581)
{
// Test the non-linearity of the 6581 DACs
CHECK(!isDacLinear(MOS6581));
}
TEST(TestDac8580)
{
// Test the linearity of the 8580 DACs
CHECK(isDacLinear(MOS8580));
}
TEST(TestLeak)
{
float dac[1 << DAC_BITS];
buildDac(dac, MOS6581);
CHECK(dac[0] > 0);
}
}
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