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set soundfont iteration methods on fluid_sfont_t creation

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This commit is contained in:
derselbst 2018-06-03 07:13:04 +02:00
parent c1a2a7af19
commit a33e3c698d
5 changed files with 38 additions and 48 deletions
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23
include/fluidsynth/sfont.h
View file

@ -172,6 +172,26 @@ typedef const char* (*fluid_sfont_get_name_t)(fluid_sfont_t* sfont);
*/
typedef fluid_preset_t* (*fluid_sfont_get_preset_t)(fluid_sfont_t* sfont, int bank, int prenum);
/**
* Start virtual SoundFont preset iteration method.
* @param sfont Virtual SoundFont
*
* Starts/re-starts virtual preset iteration in a SoundFont.
*/
typedef void (*fluid_sfont_iteration_start_t)(fluid_sfont_t* sfont);
/**
* Virtual SoundFont preset iteration function.
* @param sfont Virtual SoundFont
* @param preset Caller supplied uninitialized buffer to fill in with current preset information
* @return NULL when no more presets are available, otherwise the a pointer to the current preset
*
* Should store preset information to the caller supplied \a preset structure
* and advance the internal iteration state to the next preset for subsequent
* calls.
*/
typedef fluid_preset_t* (*fluid_sfont_iteration_next_t)(fluid_sfont_t* sfont);
/**
* Method to free a virtual SoundFont bank. Any custom user provided cleanup function must ultimately call
* delete_fluid_sfont() to ensure proper cleanup of the #fluid_sfont_t struct. If no private data
@ -186,7 +206,10 @@ typedef int (*fluid_sfont_free_t)(fluid_sfont_t* sfont);
FLUIDSYNTH_API fluid_sfont_t* new_fluid_sfont(fluid_sfont_get_name_t get_name,
fluid_sfont_get_preset_t get_preset,
fluid_sfont_iteration_start_t iter_start,
fluid_sfont_iteration_next_t iter_next,
fluid_sfont_free_t free);
FLUIDSYNTH_API int delete_fluid_sfont(fluid_sfont_t* sfont);
FLUIDSYNTH_API int fluid_sfont_set_data(fluid_sfont_t* sfont, void* data);

4
src/sfloader/fluid_defsfont.c
View file

@ -87,6 +87,8 @@ fluid_sfont_t* fluid_defsfloader_load(fluid_sfloader_t* loader, const char* file
sfont = new_fluid_sfont(fluid_defsfont_sfont_get_name,
fluid_defsfont_sfont_get_preset,
fluid_defsfont_sfont_iteration_start,
fluid_defsfont_sfont_iteration_next,
fluid_defsfont_sfont_delete);
if (sfont == NULL)
{
@ -94,8 +96,6 @@ fluid_sfont_t* fluid_defsfloader_load(fluid_sfloader_t* loader, const char* file
return NULL;
}
fluid_sfont_set_iteration_start(sfont, fluid_defsfont_sfont_iteration_start);
fluid_sfont_set_iteration_next(sfont, fluid_defsfont_sfont_iteration_next);
fluid_sfont_set_data(sfont, defsfont);
defsfont->sfont = sfont;

7
src/sfloader/fluid_ramsfont.c
View file

@ -92,6 +92,8 @@ fluid_ramsfont_create_sfont()
sfont = new_fluid_sfont(fluid_ramsfont_sfont_get_name,
fluid_ramsfont_sfont_get_preset,
fluid_ramsfont_sfont_iteration_start,
fluid_ramsfont_sfont_iteration_next,
fluid_ramsfont_sfont_delete);
if (sfont == NULL)
{
@ -99,11 +101,8 @@ fluid_ramsfont_create_sfont()
return NULL;
}
ramsfont->sfont = sfont;
fluid_sfont_set_iteration_start(sfont, fluid_ramsfont_sfont_iteration_start);
fluid_sfont_set_iteration_next(sfont, fluid_ramsfont_sfont_iteration_next);
fluid_sfont_set_data(sfont, ramsfont);
ramsfont->sfont = sfont;
return sfont;
}

23
src/sfloader/fluid_sfont.c
View file

@ -180,11 +180,15 @@ int fluid_sfloader_set_callbacks(fluid_sfloader_t* loader,
* Creates a new virtual SoundFont instance structure.
* @param get_name A function implementing #fluid_sfont_get_name_t.
* @param get_preset A function implementing #fluid_sfont_get_preset_t.
* @param iter_start A function implementing #fluid_sfont_iteration_start_t, or NULL if preset iteration not needed.
* @param iter_next A function implementing #fluid_sfont_iteration_next_t, or NULL if preset iteration not needed.
* @param free A function implementing #fluid_sfont_free_t.
* @return The soundfont instance on success or NULL otherwise.
*/
fluid_sfont_t* new_fluid_sfont(fluid_sfont_get_name_t get_name,
fluid_sfont_get_preset_t get_preset,
fluid_sfont_iteration_start_t iter_start,
fluid_sfont_iteration_next_t iter_next,
fluid_sfont_free_t free)
{
fluid_sfont_t* sfont;
@ -203,6 +207,8 @@ fluid_sfont_t* new_fluid_sfont(fluid_sfont_get_name_t get_name,
sfont->get_name = get_name;
sfont->get_preset = get_preset;
sfont->iteration_start = iter_start;
sfont->iteration_next = iter_next;
sfont->free = free;
return sfont;
@ -236,22 +242,6 @@ void* fluid_sfont_get_data(fluid_sfont_t* sfont)
return sfont->data;
}
/**
* @internal KISS! No need to expose this to public API currently.
*/
void fluid_sfont_set_iteration_start(fluid_sfont_t* sfont, fluid_sfont_iteration_start_t iter_start)
{
sfont->iteration_start = iter_start;
}
/**
* @internal KISS! No need to expose this to public API currently.
*/
void fluid_sfont_set_iteration_next(fluid_sfont_t* sfont, fluid_sfont_iteration_next_t iter_next)
{
sfont->iteration_next = iter_next;
}
/**
* Retrieve the unique ID of a SoundFont instance.
*
@ -277,6 +267,7 @@ const char* fluid_sfont_get_name(fluid_sfont_t* sfont)
/**
* Retrieve the preset assigned the a SoundFont instance
* for the given bank and preset number.
* @param sfont The SoundFont instance.
* @param bank bank number of the preset
* @param prenum program number of the preset
* @return The preset instance or NULL if none found.

23
src/sfloader/fluid_sfont.h
View file

@ -83,29 +83,6 @@ struct _fluid_sfloader_t {
fluid_sfloader_load_t load;
};
/**
* Start virtual SoundFont preset iteration method.
* @param sfont Virtual SoundFont
*
* Starts/re-starts virtual preset iteration in a SoundFont.
*/
typedef void (*fluid_sfont_iteration_start_t)(fluid_sfont_t* sfont);
/**
* Virtual SoundFont preset iteration function.
* @param sfont Virtual SoundFont
* @param preset Caller supplied uninitialized buffer to fill in with current preset information
* @return NULL when no more presets are available, otherwise the a pointer to the current preset
*
* Should store preset information to the caller supplied \a preset structure
* and advance the internal iteration state to the next preset for subsequent
* calls.
*/
typedef fluid_preset_t* (*fluid_sfont_iteration_next_t)(fluid_sfont_t* sfont);
void fluid_sfont_set_iteration_start(fluid_sfont_t* sfont, fluid_sfont_iteration_start_t iter_start);
void fluid_sfont_set_iteration_next(fluid_sfont_t* sfont, fluid_sfont_iteration_next_t iter_next);
/**
* Virtual SoundFont instance structure.
*/