liquidsfz.hh

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/*
 * liquidsfz - sfz sampler
 *
 * Copyright (C) 2019-2021  Stefan Westerfeld
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation; either version 2.1 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
#ifndef LIQUIDSFZ_LIQUIDSFZ_HH
#define LIQUIDSFZ_LIQUIDSFZ_HH
 
#include <memory>
#include <functional>
#include <vector>
#include <string>
 
typedef unsigned int uint;
 
namespace LiquidSFZ
{
 
enum class Log {
  DEBUG,
  INFO,
  WARNING,
  ERROR,
  DISABLE_ALL // special log level which can be used to disable all logging
};
 
class CCInfo
{
  friend class Synth;
 
  struct Impl;
  std::unique_ptr<Impl> impl;
public:
  CCInfo();
  CCInfo (CCInfo&&) = default;
  ~CCInfo();
 
  int cc() const;
 
  std::string label() const;
 
  bool has_label() const;
 
  int default_value() const;
};
 
class KeyInfo
{
  friend class Synth;
 
  struct Impl;
  std::unique_ptr<Impl> impl;
public:
  KeyInfo();
  KeyInfo (KeyInfo&&) = default;
  ~KeyInfo();
 
  int key() const;
 
  std::string label() const;
 
  bool is_switch() const;
};
 
class Synth
{
  struct Impl;
  std::unique_ptr<Impl> impl;
 
public:
  Synth();
  ~Synth();
 
  void set_sample_rate (uint sample_rate);
 
  void set_max_voices (uint n_voices);
 
  uint active_voice_count() const;
 
  void set_gain (float gain);
 
  bool load (const std::string& filename);
 
  std::vector<CCInfo> list_ccs() const;
 
  std::vector<KeyInfo> list_keys() const;
 
  void add_event_note_on (uint time_frames, int channel, int key, int velocity);
 
  void add_event_note_off (uint time_frames, int channel, int key);
 
  void add_event_cc (uint time_frames, int channel, int cc, int value);
 
  void add_event_pitch_bend (uint time_frames, int channel, int value);
 
  void process (float **outputs, uint n_frames);
 
  void all_sound_off();
 
  void system_reset();
 
  void set_log_level (Log log_level);
 
  void set_log_function (std::function<void (Log, const char *)> log_function);
 
  void set_progress_function (std::function<void (double)> progress_function);
};
 
 
}
#endif