/* 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 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, 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 */