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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 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 _FLUID_RVOICE_EVENT_H
#define _FLUID_RVOICE_EVENT_H
#include "fluidsynth_priv.h"
#include "fluid_rvoice_mixer.h"
#include "fluid_ringbuffer.h"
typedef struct _fluid_rvoice_event_t fluid_rvoice_event_t;
struct _fluid_rvoice_event_t
{
fluid_rvoice_function_t method;
void *object;
fluid_rvoice_param_t param[MAX_EVENT_PARAMS];
};
/*
* Bridge between the renderer thread and the midi state thread.
* fluid_rvoice_eventhandler_fetch_all() can be called in parallell
* with fluid_rvoice_eventhandler_push/flush()
*/
struct _fluid_rvoice_eventhandler_t
{
fluid_ringbuffer_t *queue; /**< List of fluid_rvoice_event_t */
fluid_atomic_int_t queue_stored; /**< Extras pushed but not flushed */
fluid_ringbuffer_t *finished_voices; /**< return queue from handler, list of fluid_rvoice_t* */
fluid_rvoice_mixer_t *mixer;
};
fluid_rvoice_eventhandler_t *new_fluid_rvoice_eventhandler(
int queuesize, int finished_voices_size, int bufs,
int fx_bufs, int fx_units, fluid_real_t sample_rate, int, int);
void delete_fluid_rvoice_eventhandler(fluid_rvoice_eventhandler_t *);
int fluid_rvoice_eventhandler_dispatch_all(fluid_rvoice_eventhandler_t *);
int fluid_rvoice_eventhandler_dispatch_count(fluid_rvoice_eventhandler_t *);
void fluid_rvoice_eventhandler_finished_voice_callback(fluid_rvoice_eventhandler_t *eventhandler,
fluid_rvoice_t *rvoice);
static FLUID_INLINE void
fluid_rvoice_eventhandler_flush(fluid_rvoice_eventhandler_t *handler)
{
int queue_stored = fluid_atomic_int_get(&handler->queue_stored);
if(queue_stored > 0)
{
fluid_atomic_int_set(&handler->queue_stored, 0);
fluid_ringbuffer_next_inptr(handler->queue, queue_stored);
}
}
/**
* @return next finished voice, or NULL if nothing in queue
*/
static FLUID_INLINE fluid_rvoice_t *
fluid_rvoice_eventhandler_get_finished_voice(fluid_rvoice_eventhandler_t *handler)
{
void *result = fluid_ringbuffer_get_outptr(handler->finished_voices);
if(result == NULL)
{
return NULL;
}
result = * (fluid_rvoice_t **) result;
fluid_ringbuffer_next_outptr(handler->finished_voices);
return result;
}
int fluid_rvoice_eventhandler_push_int_real(fluid_rvoice_eventhandler_t *handler,
fluid_rvoice_function_t method, void *object, int intparam,
fluid_real_t realparam);
int fluid_rvoice_eventhandler_push_ptr(fluid_rvoice_eventhandler_t *handler,
fluid_rvoice_function_t method, void *object, void *ptr);
int fluid_rvoice_eventhandler_push(fluid_rvoice_eventhandler_t *handler,
fluid_rvoice_function_t method, void *object,
fluid_rvoice_param_t param[MAX_EVENT_PARAMS]);
static FLUID_INLINE void
fluid_rvoice_eventhandler_add_rvoice(fluid_rvoice_eventhandler_t *handler,
fluid_rvoice_t *rvoice)
{
fluid_rvoice_eventhandler_push_ptr(handler, fluid_rvoice_mixer_add_voice,
handler->mixer, rvoice);
}
#endif
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