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