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105 lines
3.7 KiB
C
105 lines
3.7 KiB
C
/* FluidSynth - A Software Synthesizer
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*
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* Copyright (C) 2003 Peter Hanappe and others.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#ifndef _FLUID_RVOICE_EVENT_H
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#define _FLUID_RVOICE_EVENT_H
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#include "fluidsynth_priv.h"
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#include "fluid_rvoice_mixer.h"
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#include "fluid_ringbuffer.h"
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typedef struct _fluid_rvoice_event_t fluid_rvoice_event_t;
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typedef struct _fluid_rvoice_eventhandler_t fluid_rvoice_eventhandler_t;
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struct _fluid_rvoice_event_t {
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fluid_rvoice_function_t method;
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void* object;
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fluid_rvoice_param_t param[EVENT_PARAMS];
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};
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/*
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* Bridge between the renderer thread and the midi state thread.
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* fluid_rvoice_eventhandler_fetch_all() can be called in parallell
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* with fluid_rvoice_eventhandler_push/flush()
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*/
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struct _fluid_rvoice_eventhandler_t {
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fluid_ringbuffer_t* queue; /**< List of fluid_rvoice_event_t */
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fluid_atomic_int_t queue_stored; /**< Extras pushed but not flushed */
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fluid_ringbuffer_t* finished_voices; /**< return queue from handler, list of fluid_rvoice_t* */
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fluid_rvoice_mixer_t* mixer;
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};
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fluid_rvoice_eventhandler_t* new_fluid_rvoice_eventhandler(
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int queuesize, int finished_voices_size, int bufs,
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int fx_bufs, fluid_real_t sample_rate);
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void delete_fluid_rvoice_eventhandler(fluid_rvoice_eventhandler_t*);
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int fluid_rvoice_eventhandler_dispatch_all(fluid_rvoice_eventhandler_t*);
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int fluid_rvoice_eventhandler_dispatch_count(fluid_rvoice_eventhandler_t*);
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static FLUID_INLINE void
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fluid_rvoice_eventhandler_flush(fluid_rvoice_eventhandler_t* handler)
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{
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int queue_stored = fluid_atomic_int_get(&handler->queue_stored);
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if (queue_stored > 0) {
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fluid_atomic_int_set(&handler->queue_stored, 0);
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fluid_ringbuffer_next_inptr(handler->queue, queue_stored);
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}
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}
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/**
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* @return next finished voice, or NULL if nothing in queue
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*/
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static FLUID_INLINE fluid_rvoice_t*
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fluid_rvoice_eventhandler_get_finished_voice(fluid_rvoice_eventhandler_t* handler)
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{
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void* result = fluid_ringbuffer_get_outptr(handler->finished_voices);
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if (result == NULL) return NULL;
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result = * (fluid_rvoice_t**) result;
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fluid_ringbuffer_next_outptr(handler->finished_voices);
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return result;
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}
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int fluid_rvoice_eventhandler_push(fluid_rvoice_eventhandler_t* handler,
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fluid_rvoice_function_t method, void* object, int intparam,
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fluid_real_t realparam);
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int fluid_rvoice_eventhandler_push_ptr(fluid_rvoice_eventhandler_t* handler,
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fluid_rvoice_function_t method, void* object, void* ptr);
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int fluid_rvoice_eventhandler_push_param(fluid_rvoice_eventhandler_t* handler,
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fluid_rvoice_function_t method, void* object,
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fluid_rvoice_param_t param[EVENT_PARAMS]);
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static FLUID_INLINE void
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fluid_rvoice_eventhandler_add_rvoice(fluid_rvoice_eventhandler_t* handler,
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fluid_rvoice_t* rvoice)
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{
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fluid_rvoice_eventhandler_push_ptr(handler, fluid_rvoice_mixer_add_voice,
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handler->mixer, rvoice);
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}
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#endif
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