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/*
* MixerSettings.cpp
* -----------------
* Purpose: A struct containing settings for the mixer of soundlib.
* Notes : (currently none)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#include "stdafx.h"
#include "MixerSettings.h"
#include "Snd_defs.h"
#include "../common/misc_util.h"
OPENMPT_NAMESPACE_BEGIN
MixerSettings::MixerSettings()
{
// SNDMIX: These are global flags for playback control
m_nStereoSeparation = 128;
m_nMaxMixChannels = MAX_CHANNELS;
DSPMask = 0;
MixerFlags = 0;
// Mixing Configuration
gnChannels = 2;
gdwMixingFreq = 48000;
m_nPreAmp = 128;
VolumeRampUpMicroseconds = 363; // 16 @44100
VolumeRampDownMicroseconds = 952; // 42 @44100
NumInputChannels = 0;
}
int32 MixerSettings::GetVolumeRampUpSamples() const
{
return Util::muldivr(VolumeRampUpMicroseconds, gdwMixingFreq, 1000000);
}
int32 MixerSettings::GetVolumeRampDownSamples() const
{
return Util::muldivr(VolumeRampDownMicroseconds, gdwMixingFreq, 1000000);
}
void MixerSettings::SetVolumeRampUpSamples(int32 rampUpSamples)
{
VolumeRampUpMicroseconds = Util::muldivr(rampUpSamples, 1000000, gdwMixingFreq);
}
void MixerSettings::SetVolumeRampDownSamples(int32 rampDownSamples)
{
VolumeRampDownMicroseconds = Util::muldivr(rampDownSamples, 1000000, gdwMixingFreq);
}
OPENMPT_NAMESPACE_END
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