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sfont.h

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/* FluidSynth - A Software Synthesizer
 *
 * Copyright (C) 2003  Peter Hanappe and others.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public License
 * as published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *  
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307, USA
 */

#ifndef _FLUIDSYNTH_SFONT_H
#define _FLUIDSYNTH_SFONT_H

#ifdef __cplusplus
extern "C" {
#endif



  enum {
    FLUID_PRESET_SELECTED,
    FLUID_PRESET_UNSELECTED,
    FLUID_SAMPLE_DONE
  };


/*
 * fluid_sfloader_t
 */

struct _fluid_sfloader_t {
  void* data;
  int (*free)(fluid_sfloader_t* loader);
  fluid_sfont_t* (*load)(fluid_sfloader_t* loader, const char* filename);
};


/*
 * fluid_sfont_t
 */

struct _fluid_sfont_t {
  void* data;
  unsigned int id;

  int (*free)(fluid_sfont_t* sfont);

  char* (*get_name)(fluid_sfont_t* sfont);
  fluid_preset_t* (*get_preset)(fluid_sfont_t* sfont, unsigned int bank, unsigned int prenum);
  void (*iteration_start)(fluid_sfont_t* sfont);

  /* return 0 when no more presets are available, 1 otherwise */
  int (*iteration_next)(fluid_sfont_t* sfont, fluid_preset_t* preset);
};

#define fluid_sfont_get_id(_sf) ((_sf)->id)


/*
 * fluid_preset_t 
 */

struct _fluid_preset_t {
  void* data;
  fluid_sfont_t* sfont;
  int (*free)(fluid_preset_t* preset);
  char* (*get_name)(fluid_preset_t* preset);
  int (*get_banknum)(fluid_preset_t* preset);
  int (*get_num)(fluid_preset_t* preset);

  int (*noteon)(fluid_preset_t* preset, fluid_synth_t* synth, int chan, int key, int vel);

  int (*notify)(fluid_preset_t* preset, int reason, int chan);
};


/*
 * fluid_sample_t
 */

struct _fluid_sample_t
{
  char name[21];
  unsigned int start;
  unsigned int end;
  unsigned int loopstart;
  unsigned int loopend;
  unsigned int samplerate;
  int origpitch;
  int pitchadj;
  int sampletype;
  int valid;
  short* data;

  /* Set this to zero, when submitting a new sample. */
  int amplitude_that_reaches_noise_floor_is_valid; 
  double amplitude_that_reaches_noise_floor;

  unsigned int refcount;

  int (*notify)(fluid_sample_t* sample, int reason);

  void* userdata;
};


#define fluid_sample_refcount(_sample) ((_sample)->refcount)


#define FLUID_SAMPLETYPE_MONO   1
#define FLUID_SAMPLETYPE_RIGHT  2
#define FLUID_SAMPLETYPE_LEFT   4
#define FLUID_SAMPLETYPE_LINKED 8
#define FLUID_SAMPLETYPE_ROM    0x8000



#ifdef __cplusplus
}
#endif

#endif /* _FLUIDSYNTH_SFONT_H */

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