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