settings.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_SETTINGS_H
- #define _FLUIDSYNTH_SETTINGS_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- /**
- * @file settings.h
- * @brief Synthesizer settings
- * @defgroup SettingsFunctions Functions for settings management
- *
- * To create a synthesizer object you will have to specify its
- * settings. These settings are stored in a fluid_settings_t object.
- * @code
- * void
- * my_synthesizer ()
- * {
- * fluid_settings_t *settings;
- * fluid_synth_t *synth;
- * fluid_audio_driver_t *adriver;
- *
- * settings = new_fluid_settings ();
- * fluid_settings_setstr(settings, "audio.driver", "alsa");
- * // ... change settings ...
- * synth = new_fluid_synth (settings);
- * adriver = new_fluid_audio_driver (settings, synth);
- * // ...
- * }
- * @endcode
- * @sa @ref CreatingSettings
- */
- /**
- * Hint FLUID_HINT_BOUNDED_BELOW indicates that the LowerBound field
- * of the FLUID_PortRangeHint should be considered meaningful. The
- * value in this field should be considered the (inclusive) lower
- * bound of the valid range. If FLUID_HINT_SAMPLE_RATE is also
- * specified then the value of LowerBound should be multiplied by the
- * sample rate.
- */
- #define FLUID_HINT_BOUNDED_BELOW 0x1
- /** Hint FLUID_HINT_BOUNDED_ABOVE indicates that the UpperBound field
- of the FLUID_PortRangeHint should be considered meaningful. The
- value in this field should be considered the (inclusive) upper
- bound of the valid range. If FLUID_HINT_SAMPLE_RATE is also
- specified then the value of UpperBound should be multiplied by the
- sample rate. */
- #define FLUID_HINT_BOUNDED_ABOVE 0x2
- /**
- * Hint FLUID_HINT_TOGGLED indicates that the data item should be
- * considered a Boolean toggle. Data less than or equal to zero should
- * be considered `off' or `false,' and data above zero should be
- * considered `on' or `true.' FLUID_HINT_TOGGLED may not be used in
- * conjunction with any other hint.
- */
- #define FLUID_HINT_TOGGLED 0x4
- /**
- * Hint FLUID_HINT_SAMPLE_RATE indicates that any bounds specified
- * should be interpreted as multiples of the sample rate. For
- * instance, a frequency range from 0Hz to the Nyquist frequency (half
- * the sample rate) could be requested by this hint in conjunction
- * with LowerBound = 0 and UpperBound = 0.5. Hosts that support bounds
- * at all must support this hint to retain meaning.
- */
- #define FLUID_HINT_SAMPLE_RATE 0x8
- /**
- * Hint FLUID_HINT_LOGARITHMIC indicates that it is likely that the
- * user will find it more intuitive to view values using a logarithmic
- * scale. This is particularly useful for frequencies and gains.
- */
- #define FLUID_HINT_LOGARITHMIC 0x10
- /**
- * Hint FLUID_HINT_INTEGER indicates that a user interface would
- * probably wish to provide a stepped control taking only integer
- * values.
- * @deprecated
- *
- * As there is an integer setting type, this hint is not used.
- */
- #define FLUID_HINT_INTEGER 0x20
- #define FLUID_HINT_FILENAME 0x01 /**< String setting is a file name */
- #define FLUID_HINT_OPTIONLIST 0x02 /**< Setting is a list of string options */
- /**
- * Settings type
- *
- * Each setting has a defined type: numeric (double), integer, string or a
- * set of values. The type of each setting can be retrieved using the
- * function fluid_settings_get_type()
- */
- enum fluid_types_enum {
- FLUID_NO_TYPE = -1, /**< Undefined type */
- FLUID_NUM_TYPE, /**< Numeric (double) */
- FLUID_INT_TYPE, /**< Integer */
- FLUID_STR_TYPE, /**< String */
- FLUID_SET_TYPE /**< Set of values */
- };
- FLUIDSYNTH_API fluid_settings_t* new_fluid_settings(void);
- FLUIDSYNTH_API void delete_fluid_settings(fluid_settings_t* settings);
- FLUIDSYNTH_API
- int fluid_settings_get_type(fluid_settings_t* settings, const char *name);
- FLUIDSYNTH_API
- int fluid_settings_get_hints(fluid_settings_t* settings, const char *name);
- FLUIDSYNTH_API
- int fluid_settings_is_realtime(fluid_settings_t* settings, const char *name);
- FLUIDSYNTH_API
- int fluid_settings_setstr(fluid_settings_t* settings, const char *name, const char *str);
- FLUIDSYNTH_API
- int fluid_settings_copystr(fluid_settings_t* settings, const char *name, char *str, int len);
- FLUIDSYNTH_API
- int fluid_settings_dupstr(fluid_settings_t* settings, const char *name, char** str);
- FLUIDSYNTH_API
- int fluid_settings_getstr(fluid_settings_t* settings, const char *name, char** str);
- FLUIDSYNTH_API
- char* fluid_settings_getstr_default(fluid_settings_t* settings, const char *name);
- FLUIDSYNTH_API
- int fluid_settings_str_equal(fluid_settings_t* settings, const char *name, const char *value);
- FLUIDSYNTH_API
- int fluid_settings_setnum(fluid_settings_t* settings, const char *name, double val);
- FLUIDSYNTH_API
- int fluid_settings_getnum(fluid_settings_t* settings, const char *name, double* val);
- FLUIDSYNTH_API
- double fluid_settings_getnum_default(fluid_settings_t* settings, const char *name);
- FLUIDSYNTH_API
- void fluid_settings_getnum_range(fluid_settings_t* settings, const char *name,
- double* min, double* max);
- FLUIDSYNTH_API
- int fluid_settings_setint(fluid_settings_t* settings, const char *name, int val);
- FLUIDSYNTH_API
- int fluid_settings_getint(fluid_settings_t* settings, const char *name, int* val);
- FLUIDSYNTH_API
- int fluid_settings_getint_default(fluid_settings_t* settings, const char *name);
- FLUIDSYNTH_API
- void fluid_settings_getint_range(fluid_settings_t* settings, const char *name,
- int* min, int* max);
- /**
- * Callback function type used with fluid_settings_foreach_option()
- * @param data User defined data pointer
- * @param name Setting name
- * @param option A string option for this setting (iterates through the list)
- */
- typedef void (*fluid_settings_foreach_option_t)(void *data, char *name, char *option);
- FLUIDSYNTH_API
- void fluid_settings_foreach_option(fluid_settings_t* settings,
- const char* name, void* data,
- fluid_settings_foreach_option_t func);
- FLUIDSYNTH_API
- int fluid_settings_option_count (fluid_settings_t* settings, const char* name);
- FLUIDSYNTH_API char *fluid_settings_option_concat (fluid_settings_t* settings,
- const char* name,
- const char* separator);
- /**
- * Callback function type used with fluid_settings_foreach()
- * @param data User defined data pointer
- * @param name Setting name
- * @param type Setting type (#fluid_types_enum)
- */
- typedef void (*fluid_settings_foreach_t)(void *data, char *name, int type);
- FLUIDSYNTH_API
- void fluid_settings_foreach(fluid_settings_t* settings, void* data,
- fluid_settings_foreach_t func);
- #ifdef __cplusplus
- }
- #endif
- #endif /* _FLUIDSYNTH_SETTINGS_H */