DACSound8U.cc

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#include "DACSound8U.hh"
#include "DeviceConfig.hh"
#include "MSXMotherBoard.hh"
#include "narrow.hh"
 
namespace openmsx {
 
DACSound8U::DACSound8U(std::string_view name_, static_string_view desc,
                       const DeviceConfig& config)
        : DACSound16S(name_, desc, config)
{
        // Apply 8->16 bit scaling as part of volume-multiplication (= for
        // free) instead of on each writeDAC() invocation.
        setSoftwareVolume(256.0f, config.getMotherBoard().getCurrentTime());
}
 
void DACSound8U::writeDAC(uint8_t value, EmuTime::param time)
{
        DACSound16S::writeDAC(narrow<int16_t>(narrow<int>(value) - 0x80), time);
}
 
} // namespace openmsx