/* * This source code is public domain. * * Authors: Kenton Varda (C interface wrapper) */ #ifndef MODPLUG_H__INCLUDED #define MODPLUG_H__INCLUDED #ifdef __cplusplus extern "C" { #endif struct _ModPlugFile; typedef struct _ModPlugFile ModPlugFile; struct _ModPlugNote { unsigned char Note; unsigned char Instrument; unsigned char VolumeEffect; unsigned char Effect; unsigned char Volume; unsigned char Parameter; }; typedef struct _ModPlugNote ModPlugNote; typedef void (*ModPlugMixerProc)(int*, unsigned long, unsigned long); /* Load a mod file. [data] should point to a block of memory containing the complete * file, and [size] should be the size of that block. * Return the loaded mod file on success, or NULL on failure. */ ModPlugFile* ModPlug_Load(const void* data, int size); /* Unload a mod file. */ void ModPlug_Unload(ModPlugFile* file); /* Read sample data into the buffer. Returns the number of bytes read. If the end * of the mod has been reached, zero is returned. */ int ModPlug_Read(ModPlugFile* file, void* buffer, int size); /* Get the name of the mod. The returned buffer is stored within the ModPlugFile * structure and will remain valid until you unload the file. */ const char* ModPlug_GetName(ModPlugFile* file); /* Get the length of the mod, in milliseconds. Note that this result is not always * accurate, especially in the case of mods with loops. */ int ModPlug_GetLength(ModPlugFile* file); /* Seek to a particular position in the song. Note that seeking and MODs don't mix very * well. Some mods will be missing instruments for a short time after a seek, as ModPlug * does not scan the sequence backwards to find out which instruments were supposed to be * playing at that time. (Doing so would be difficult and not very reliable.) Also, * note that seeking is not very exact in some mods -- especially those for which * ModPlug_GetLength() does not report the full length. */ void ModPlug_Seek(ModPlugFile* file, int millisecond); enum _ModPlug_Flags { MODPLUG_ENABLE_OVERSAMPLING = 1 << 0, /* Enable oversampling (*highly* recommended) */ MODPLUG_ENABLE_NOISE_REDUCTION = 1 << 1, /* Enable noise reduction */ MODPLUG_ENABLE_REVERB = 1 << 2, /* Enable reverb */ MODPLUG_ENABLE_MEGABASS = 1 << 3, /* Enable megabass */ MODPLUG_ENABLE_SURROUND = 1 << 4 /* Enable surround sound. */ }; enum _ModPlug_ResamplingMode { MODPLUG_RESAMPLE_NEAREST = 0, /* No interpolation (very fast, extremely bad sound quality) */ MODPLUG_RESAMPLE_LINEAR = 1, /* Linear interpolation (fast, good quality) */ MODPLUG_RESAMPLE_SPLINE = 2, /* Cubic spline interpolation (high quality) */ MODPLUG_RESAMPLE_FIR = 3 /* 8-tap fir filter (extremely high quality) */ }; typedef struct _ModPlug_Settings { int mFlags; /* One or more of the MODPLUG_ENABLE_* flags above, bitwise-OR'ed */ /* Note that ModPlug always decodes sound at 44100kHz, 32 bit, stereo and then * down-mixes to the settings you choose. */ int mChannels; /* Number of channels - 1 for mono or 2 for stereo */ int mBits; /* Bits per sample - 8, 16, or 32 */ int mFrequency; /* Sampling rate - 11025, 22050, or 44100 */ int mResamplingMode; /* One of MODPLUG_RESAMPLE_*, above */ int mStereoSeparation; /* Stereo separation, 1 - 256 */ int mMaxMixChannels; /* Maximum number of mixing channels (polyphony), 32 - 256 */ int mReverbDepth; /* Reverb level 0(quiet)-100(loud) */ int mReverbDelay; /* Reverb delay in ms, usually 40-200ms */ int mBassAmount; /* XBass level 0(quiet)-100(loud) */ int mBassRange; /* XBass cutoff in Hz 10-100 */ int mSurroundDepth; /* Surround level 0(quiet)-100(heavy) */ int mSurroundDelay; /* Surround delay in ms, usually 5-40ms */ int mLoopCount; /* Number of times to loop. Zero prevents looping. -1 loops forever. */ } ModPlug_Settings; /* Get and set the mod decoder settings. All options, except for channels, bits-per-sample, * sampling rate, and loop count, will take effect immediately. Those options which don't * take effect immediately will take effect the next time you load a mod. */ void ModPlug_GetSettings(ModPlug_Settings* settings); void ModPlug_SetSettings(const ModPlug_Settings* settings); /* New ModPlug API Functions */ /* NOTE: Master Volume (1-512) */ unsigned int ModPlug_GetMasterVolume(ModPlugFile* file) ; void ModPlug_SetMasterVolume(ModPlugFile* file,unsigned int cvol) ; int ModPlug_GetCurrentSpeed(ModPlugFile* file); int ModPlug_GetCurrentTempo(ModPlugFile* file); int ModPlug_GetCurrentOrder(ModPlugFile* file); int ModPlug_GetCurrentPattern(ModPlugFile* file); int ModPlug_GetCurrentRow(ModPlugFile* file); int ModPlug_GetPlayingChannels(ModPlugFile* file); void ModPlug_SeekOrder(ModPlugFile* file,int order); int ModPlug_GetModuleType(ModPlugFile* file); char* ModPlug_GetMessage(ModPlugFile* file); #ifndef MODPLUG_NO_FILESAVE /* * EXPERIMENTAL Export Functions */ /*Export to a Scream Tracker 3 S3M module. EXPERIMENTAL (only works on Little-Endian platforms)*/ char ModPlug_ExportS3M(ModPlugFile* file, const char* filepath); /*Export to a Extended Module (XM). EXPERIMENTAL (only works on Little-Endian platforms)*/ char ModPlug_ExportXM(ModPlugFile* file, const char* filepath); /*Export to a Amiga MOD file. EXPERIMENTAL.*/ char ModPlug_ExportMOD(ModPlugFile* file, const char* filepath); /*Export to a Impulse Tracker IT file. Should work OK in Little-Endian & Big-Endian platforms :-) */ char ModPlug_ExportIT(ModPlugFile* file, const char* filepath); #endif // MODPLUG_NO_FILESAVE unsigned int ModPlug_NumInstruments(ModPlugFile* file); unsigned int ModPlug_NumSamples(ModPlugFile* file); unsigned int ModPlug_NumPatterns(ModPlugFile* file); unsigned int ModPlug_NumChannels(ModPlugFile* file); unsigned int ModPlug_SampleName(ModPlugFile* file, unsigned int qual, char* buff); unsigned int ModPlug_InstrumentName(ModPlugFile* file, unsigned int qual, char* buff); /* * Retrieve pattern note-data */ ModPlugNote* ModPlug_GetPattern(ModPlugFile* file, int pattern, unsigned int* numrows); /* * ================= * Mixer callback * ================= * * Use this callback if you want to 'modify' the mixed data of LibModPlug. * * void proc(int* buffer,unsigned long channels,unsigned long nsamples) ; * * 'buffer': A buffer of mixed samples * 'channels': N. of channels in the buffer * 'nsamples': N. of samples in the buffeer (without taking care of n.channels) * * (Samples are signed 32-bit integers) */ void ModPlug_InitMixerCallback(ModPlugFile* file,ModPlugMixerProc proc) ; void ModPlug_UnloadMixerCallback(ModPlugFile* file) ; #ifdef __cplusplus } /* extern "C" */ #endif #endif