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/*
* This source code is public domain.
*
* Authors: Kenton Varda <temporal@gauge3d.org> (C interface wrapper)
*/
#include "modplug.h"
#include "stdafx.h"
#include "sndfile.h"
struct _ModPlugFile
{
CSoundFile mSoundFile;
};
namespace ModPlug
{
ModPlug_Settings gSettings =
{
MODPLUG_ENABLE_OVERSAMPLING | MODPLUG_ENABLE_NOISE_REDUCTION,
2,
16,
44100,
MODPLUG_RESAMPLE_LINEAR,
0,
0,
0,
0,
0,
0,
0
};
int gSampleSize;
void UpdateSettings(bool updateBasicConfig)
{
if(gSettings.mFlags & MODPLUG_ENABLE_REVERB)
{
CSoundFile::SetReverbParameters(gSettings.mReverbDepth,
gSettings.mReverbDelay);
}
if(gSettings.mFlags & MODPLUG_ENABLE_MEGABASS)
{
CSoundFile::SetXBassParameters(gSettings.mBassAmount,
gSettings.mBassRange);
}
else // modplug seems to ignore the SetWaveConfigEx() setting for bass boost
CSoundFile::SetXBassParameters(0, 0);
if(gSettings.mFlags & MODPLUG_ENABLE_SURROUND)
{
CSoundFile::SetSurroundParameters(gSettings.mSurroundDepth,
gSettings.mSurroundDelay);
}
if(updateBasicConfig)
{
CSoundFile::SetWaveConfig(gSettings.mFrequency,
gSettings.mBits,
gSettings.mChannels);
gSampleSize = gSettings.mBits / 8 * gSettings.mChannels;
}
CSoundFile::SetWaveConfigEx(gSettings.mFlags & MODPLUG_ENABLE_SURROUND,
!(gSettings.mFlags & MODPLUG_ENABLE_OVERSAMPLING),
gSettings.mFlags & MODPLUG_ENABLE_REVERB,
true,
gSettings.mFlags & MODPLUG_ENABLE_MEGABASS,
gSettings.mFlags & MODPLUG_ENABLE_NOISE_REDUCTION,
false);
CSoundFile::SetResamplingMode(gSettings.mResamplingMode);
}
}
ModPlugFile* ModPlug_Load(const void* data, int size)
{
ModPlugFile* result = new ModPlugFile;
ModPlug::UpdateSettings(true);
if(result->mSoundFile.Create((const BYTE*)data, size))
{
result->mSoundFile.SetRepeatCount(ModPlug::gSettings.mLoopCount);
return result;
}
else
{
delete result;
return NULL;
}
}
void ModPlug_Unload(ModPlugFile* file)
{
file->mSoundFile.Destroy();
delete file;
}
int ModPlug_Read(ModPlugFile* file, void* buffer, int size)
{
return file->mSoundFile.Read(buffer, size) * ModPlug::gSampleSize;
}
const char* ModPlug_GetName(ModPlugFile* file)
{
return file->mSoundFile.GetTitle();
}
int ModPlug_GetLength(ModPlugFile* file)
{
return file->mSoundFile.GetSongTime() * 1000;
}
void ModPlug_Seek(ModPlugFile* file, int millisecond)
{
int maxpos;
int maxtime = file->mSoundFile.GetSongTime() * 1000;
float postime;
if(millisecond > maxtime)
millisecond = maxtime;
maxpos = file->mSoundFile.GetMaxPosition();
postime = (float)maxpos / (float)maxtime;
file->mSoundFile.SetCurrentPos((int)(millisecond * postime));
}
void ModPlug_GetSettings(ModPlug_Settings* settings)
{
memcpy(settings, &ModPlug::gSettings, sizeof(ModPlug_Settings));
}
void ModPlug_SetSettings(const ModPlug_Settings* settings)
{
memcpy(&ModPlug::gSettings, settings, sizeof(ModPlug_Settings));
ModPlug::UpdateSettings(false);
}
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