mirror of
https://github.com/joncampbell123/dosbox-x.git
synced 2025-05-09 03:41:10 +08:00
Remove unused SDL2 Fluidsynth code
This commit is contained in:
Jonathan Campbell
parent
381a2f9bc7
commit
706fd0ecd1
@ -1,404 +0,0 @@
|
||||
/* 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
|
||||
*/
|
||||
|
||||
#define FLUIDINC
|
||||
#include "config.h"
|
||||
#if !C_FLUIDSYNTH && defined(WIN32) && !defined(C_HX_DOS)
|
||||
#include "fluid_adriver.h"
|
||||
#include "fluid_settings.h"
|
||||
|
||||
/*
|
||||
* fluid_adriver_definition_t
|
||||
*/
|
||||
|
||||
typedef struct _fluid_audriver_definition_t
|
||||
{
|
||||
char* name;
|
||||
fluid_audio_driver_t* (*new)(fluid_settings_t* settings, fluid_synth_t* synth);
|
||||
fluid_audio_driver_t* (*new2)(fluid_settings_t* settings,
|
||||
fluid_audio_func_t func,
|
||||
void* data);
|
||||
int (*free)(fluid_audio_driver_t* driver);
|
||||
void (*settings)(fluid_settings_t* settings);
|
||||
} fluid_audriver_definition_t;
|
||||
|
||||
|
||||
#if PULSE_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_pulse_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
fluid_audio_driver_t* new_fluid_pulse_audio_driver2(fluid_settings_t* settings,
|
||||
fluid_audio_func_t func, void* data);
|
||||
int delete_fluid_pulse_audio_driver(fluid_audio_driver_t* p);
|
||||
void fluid_pulse_audio_driver_settings(fluid_settings_t* settings);
|
||||
#endif
|
||||
|
||||
#if ALSA_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_alsa_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
fluid_audio_driver_t* new_fluid_alsa_audio_driver2(fluid_settings_t* settings,
|
||||
fluid_audio_func_t func, void* data);
|
||||
int delete_fluid_alsa_audio_driver(fluid_audio_driver_t* p);
|
||||
void fluid_alsa_audio_driver_settings(fluid_settings_t* settings);
|
||||
#endif
|
||||
|
||||
#if OSS_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_oss_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
fluid_audio_driver_t* new_fluid_oss_audio_driver2(fluid_settings_t* settings,
|
||||
fluid_audio_func_t func, void* data);
|
||||
int delete_fluid_oss_audio_driver(fluid_audio_driver_t* p);
|
||||
void fluid_oss_audio_driver_settings(fluid_settings_t* settings);
|
||||
#endif
|
||||
|
||||
#if COREAUDIO_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_core_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
fluid_audio_driver_t* new_fluid_core_audio_driver2(fluid_settings_t* settings,
|
||||
fluid_audio_func_t func,
|
||||
void* data);
|
||||
int delete_fluid_core_audio_driver(fluid_audio_driver_t* p);
|
||||
void fluid_core_audio_driver_settings(fluid_settings_t* settings);
|
||||
#endif
|
||||
|
||||
#if DSOUND_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_dsound_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
int delete_fluid_dsound_audio_driver(fluid_audio_driver_t* p);
|
||||
void fluid_dsound_audio_driver_settings(fluid_settings_t* settings);
|
||||
#endif
|
||||
|
||||
#if defined(C_SDL2)
|
||||
fluid_audio_driver_t* new_fluid_sdl2_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
int delete_fluid_sdl2_audio_driver(fluid_audio_driver_t* p);
|
||||
void fluid_sdl2_audio_driver_settings(fluid_settings_t* settings);
|
||||
#endif
|
||||
|
||||
#if PORTAUDIO_SUPPORT
|
||||
void fluid_portaudio_driver_settings (fluid_settings_t *settings);
|
||||
fluid_audio_driver_t* new_fluid_portaudio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
int delete_fluid_portaudio_driver(fluid_audio_driver_t* p);
|
||||
#endif
|
||||
|
||||
#if JACK_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_jack_audio_driver(fluid_settings_t* settings, fluid_synth_t* synth);
|
||||
fluid_audio_driver_t* new_fluid_jack_audio_driver2(fluid_settings_t* settings,
|
||||
fluid_audio_func_t func, void* data);
|
||||
int delete_fluid_jack_audio_driver(fluid_audio_driver_t* p);
|
||||
void fluid_jack_audio_driver_settings(fluid_settings_t* settings);
|
||||
#endif
|
||||
|
||||
#if SNDMAN_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_sndmgr_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
fluid_audio_driver_t* new_fluid_sndmgr_audio_driver2(fluid_settings_t* settings,
|
||||
fluid_audio_func_t func,
|
||||
void* data);
|
||||
int delete_fluid_sndmgr_audio_driver(fluid_audio_driver_t* p);
|
||||
#endif
|
||||
|
||||
#if DART_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_dart_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
int delete_fluid_dart_audio_driver(fluid_audio_driver_t* p);
|
||||
void fluid_dart_audio_driver_settings(fluid_settings_t* settings);
|
||||
#endif
|
||||
|
||||
#if AUFILE_SUPPORT
|
||||
fluid_audio_driver_t* new_fluid_file_audio_driver(fluid_settings_t* settings,
|
||||
fluid_synth_t* synth);
|
||||
int delete_fluid_file_audio_driver(fluid_audio_driver_t* p);
|
||||
#endif
|
||||
|
||||
/* Available audio drivers, listed in order of preference */
|
||||
fluid_audriver_definition_t fluid_audio_drivers[] = {
|
||||
#if JACK_SUPPORT
|
||||
{ "jack",
|
||||
new_fluid_jack_audio_driver,
|
||||
new_fluid_jack_audio_driver2,
|
||||
delete_fluid_jack_audio_driver,
|
||||
fluid_jack_audio_driver_settings },
|
||||
#endif
|
||||
#if ALSA_SUPPORT
|
||||
{ "alsa",
|
||||
new_fluid_alsa_audio_driver,
|
||||
new_fluid_alsa_audio_driver2,
|
||||
delete_fluid_alsa_audio_driver,
|
||||
fluid_alsa_audio_driver_settings },
|
||||
#endif
|
||||
#if OSS_SUPPORT
|
||||
{ "oss",
|
||||
new_fluid_oss_audio_driver,
|
||||
new_fluid_oss_audio_driver2,
|
||||
delete_fluid_oss_audio_driver,
|
||||
fluid_oss_audio_driver_settings },
|
||||
#endif
|
||||
#if PULSE_SUPPORT
|
||||
{ "pulseaudio",
|
||||
new_fluid_pulse_audio_driver,
|
||||
new_fluid_pulse_audio_driver2,
|
||||
delete_fluid_pulse_audio_driver,
|
||||
fluid_pulse_audio_driver_settings },
|
||||
#endif
|
||||
#if COREAUDIO_SUPPORT
|
||||
{ "coreaudio",
|
||||
new_fluid_core_audio_driver,
|
||||
new_fluid_core_audio_driver2,
|
||||
delete_fluid_core_audio_driver,
|
||||
fluid_core_audio_driver_settings },
|
||||
#endif
|
||||
#if DSOUND_SUPPORT
|
||||
{ "dsound",
|
||||
new_fluid_dsound_audio_driver,
|
||||
NULL,
|
||||
delete_fluid_dsound_audio_driver,
|
||||
fluid_dsound_audio_driver_settings },
|
||||
#endif
|
||||
#if defined(C_SDL2)
|
||||
{
|
||||
"sdl2",
|
||||
new_fluid_sdl2_audio_driver,
|
||||
NULL,
|
||||
delete_fluid_sdl2_audio_driver,
|
||||
fluid_sdl2_audio_driver_settings
|
||||
},
|
||||
#endif
|
||||
#if PORTAUDIO_SUPPORT
|
||||
{ "portaudio",
|
||||
new_fluid_portaudio_driver,
|
||||
NULL,
|
||||
delete_fluid_portaudio_driver,
|
||||
fluid_portaudio_driver_settings },
|
||||
#endif
|
||||
#if SNDMAN_SUPPORT
|
||||
{ "sndman",
|
||||
new_fluid_sndmgr_audio_driver,
|
||||
new_fluid_sndmgr_audio_driver2,
|
||||
delete_fluid_sndmgr_audio_driver,
|
||||
NULL },
|
||||
#endif
|
||||
#if DART_SUPPORT
|
||||
{ "dart",
|
||||
new_fluid_dart_audio_driver,
|
||||
NULL,
|
||||
delete_fluid_dart_audio_driver,
|
||||
fluid_dart_audio_driver_settings },
|
||||
#endif
|
||||
#if AUFILE_SUPPORT
|
||||
{ "file",
|
||||
new_fluid_file_audio_driver,
|
||||
NULL,
|
||||
delete_fluid_file_audio_driver,
|
||||
NULL },
|
||||
#endif
|
||||
{ NULL, NULL, NULL, NULL, NULL }
|
||||
};
|
||||
|
||||
|
||||
|
||||
|
||||
void fluid_audio_driver_settings(fluid_settings_t* settings)
|
||||
{
|
||||
int i;
|
||||
|
||||
fluid_settings_register_str(settings, "audio.sample-format", "16bits", 0, NULL, NULL);
|
||||
fluid_settings_add_option(settings, "audio.sample-format", "16bits");
|
||||
fluid_settings_add_option(settings, "audio.sample-format", "float");
|
||||
|
||||
fluid_settings_register_int(settings, "audio.output-channels", 2, 2, 32, 0, NULL, NULL);
|
||||
fluid_settings_register_int(settings, "audio.input-channels", 0, 0, 2, 0, NULL, NULL);
|
||||
|
||||
|
||||
#if defined(WIN32)
|
||||
fluid_settings_register_int(settings, "audio.period-size", 512, 64, 8192, 0, NULL, NULL);
|
||||
fluid_settings_register_int(settings, "audio.periods", 8, 2, 64, 0, NULL, NULL);
|
||||
#elif defined(MACOS9)
|
||||
fluid_settings_register_int(settings, "audio.period-size", 64, 64, 8192, 0, NULL, NULL);
|
||||
fluid_settings_register_int(settings, "audio.periods", 8, 2, 64, 0, NULL, NULL);
|
||||
#else
|
||||
fluid_settings_register_int(settings, "audio.period-size", 64, 64, 8192, 0, NULL, NULL);
|
||||
fluid_settings_register_int(settings, "audio.periods", 16, 2, 64, 0, NULL, NULL);
|
||||
#endif
|
||||
|
||||
fluid_settings_register_int (settings, "audio.realtime-prio",
|
||||
FLUID_DEFAULT_AUDIO_RT_PRIO, 0, 99, 0, NULL, NULL);
|
||||
|
||||
/* Set the default driver */
|
||||
#if JACK_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "jack", 0, NULL, NULL);
|
||||
#elif ALSA_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "alsa", 0, NULL, NULL);
|
||||
#elif PULSE_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "pulseaudio", 0, NULL, NULL);
|
||||
#elif OSS_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "oss", 0, NULL, NULL);
|
||||
#elif COREAUDIO_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "coreaudio", 0, NULL, NULL);
|
||||
#elif DSOUND_SUPPORT && !(defined(C_SDL2) && defined(_MSC_VER) && defined(_M_IX86))
|
||||
fluid_settings_register_str(settings, "audio.driver", "dsound", 0, NULL, NULL);
|
||||
#elif SNDMAN_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "sndman", 0, NULL, NULL);
|
||||
#elif PORTAUDIO_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "portaudio", 0, NULL, NULL);
|
||||
#elif DART_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "dart", 0, NULL, NULL);
|
||||
#elif AUFILE_SUPPORT
|
||||
fluid_settings_register_str(settings, "audio.driver", "file", 0, NULL, NULL);
|
||||
#else
|
||||
fluid_settings_register_str(settings, "audio.driver", "", 0, NULL, NULL);
|
||||
#endif
|
||||
|
||||
/* Add all drivers to the list of options */
|
||||
#if PULSE_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "pulseaudio");
|
||||
#endif
|
||||
#if ALSA_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "alsa");
|
||||
#endif
|
||||
#if OSS_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "oss");
|
||||
#endif
|
||||
#if COREAUDIO_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "coreaudio");
|
||||
#endif
|
||||
#if DSOUND_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "dsound");
|
||||
#endif
|
||||
#if SNDMAN_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "sndman");
|
||||
#endif
|
||||
#if PORTAUDIO_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "portaudio");
|
||||
#endif
|
||||
#if JACK_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "jack");
|
||||
#endif
|
||||
#if DART_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "dart");
|
||||
#endif
|
||||
#if AUFILE_SUPPORT
|
||||
fluid_settings_add_option(settings, "audio.driver", "file");
|
||||
#endif
|
||||
|
||||
for (i = 0; fluid_audio_drivers[i].name != NULL; i++) {
|
||||
if (fluid_audio_drivers[i].settings != NULL) {
|
||||
fluid_audio_drivers[i].settings(settings);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a new audio driver.
|
||||
* @param settings Configuration settings used to select and create the audio
|
||||
* driver.
|
||||
* @param synth Synthesizer instance for which the audio driver is created for.
|
||||
* @return The new audio driver instance.
|
||||
*
|
||||
* Creates a new audio driver for a given 'synth' instance with a defined set
|
||||
* of configuration 'settings'.
|
||||
*/
|
||||
fluid_audio_driver_t*
|
||||
new_fluid_audio_driver(fluid_settings_t* settings, fluid_synth_t* synth)
|
||||
{
|
||||
int i;
|
||||
fluid_audio_driver_t* driver = NULL;
|
||||
char* name;
|
||||
char *allnames;
|
||||
|
||||
for (i = 0; fluid_audio_drivers[i].name != NULL; i++) {
|
||||
if (fluid_settings_str_equal(settings, "audio.driver", fluid_audio_drivers[i].name)) {
|
||||
FLUID_LOG(FLUID_DBG, "Using '%s' audio driver", fluid_audio_drivers[i].name);
|
||||
driver = (*fluid_audio_drivers[i].new)(settings, synth);
|
||||
if (driver) {
|
||||
driver->name = fluid_audio_drivers[i].name;
|
||||
}
|
||||
return driver;
|
||||
}
|
||||
}
|
||||
|
||||
allnames = fluid_settings_option_concat (settings, "audio.driver", NULL);
|
||||
fluid_settings_dupstr (settings, "audio.driver", &name); /* ++ alloc name */
|
||||
FLUID_LOG(FLUID_ERR, "Couldn't find the requested audio driver %s. Valid drivers are: %s.",
|
||||
name ? name : "NULL", allnames ? allnames : "ERROR");
|
||||
if (name) FLUID_FREE (name);
|
||||
if (allnames) FLUID_FREE (allnames);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a new audio driver.
|
||||
* @param settings Configuration settings used to select and create the audio
|
||||
* driver.
|
||||
* @param func Function called to fill audio buffers for audio playback
|
||||
* @param data User defined data pointer to pass to 'func'
|
||||
* @return The new audio driver instance.
|
||||
*
|
||||
* Like new_fluid_audio_driver() but allows for custom audio processing before
|
||||
* audio is sent to audio driver. It is the responsibility of the callback
|
||||
* 'func' to render the audio into the buffers.
|
||||
*
|
||||
* NOTE: Not as efficient as new_fluid_audio_driver().
|
||||
*/
|
||||
fluid_audio_driver_t*
|
||||
new_fluid_audio_driver2(fluid_settings_t* settings, fluid_audio_func_t func, void* data)
|
||||
{
|
||||
int i;
|
||||
fluid_audio_driver_t* driver = NULL;
|
||||
char* name;
|
||||
|
||||
for (i = 0; fluid_audio_drivers[i].name != NULL; i++) {
|
||||
if (fluid_settings_str_equal(settings, "audio.driver", fluid_audio_drivers[i].name) &&
|
||||
(fluid_audio_drivers[i].new2 != NULL)) {
|
||||
FLUID_LOG(FLUID_DBG, "Using '%s' audio driver", fluid_audio_drivers[i].name);
|
||||
driver = (*fluid_audio_drivers[i].new2)(settings, func, data);
|
||||
if (driver) {
|
||||
driver->name = fluid_audio_drivers[i].name;
|
||||
}
|
||||
return driver;
|
||||
}
|
||||
}
|
||||
|
||||
fluid_settings_dupstr(settings, "audio.driver", &name); /* ++ alloc name */
|
||||
FLUID_LOG(FLUID_ERR, "Couldn't find the requested audio driver: %s",
|
||||
name ? name : "NULL");
|
||||
if (name) FLUID_FREE (name);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes an audio driver instance.
|
||||
* @param driver Audio driver instance to delete
|
||||
*
|
||||
* Shuts down an audio driver and deletes its instance.
|
||||
*/
|
||||
void
|
||||
delete_fluid_audio_driver(fluid_audio_driver_t* driver)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; fluid_audio_drivers[i].name != NULL; i++) {
|
||||
if (fluid_audio_drivers[i].name == driver->name) {
|
||||
fluid_audio_drivers[i].free(driver);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
@ -1,256 +0,0 @@
|
||||
/* FluidSynth - A Software Synthesizer
|
||||
*
|
||||
* Copyright (C) 2003 Peter Hanappe and others.
|
||||
* Copyright (C) 2018 Carlo Bramini
|
||||
*
|
||||
* 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
|
||||
*/
|
||||
|
||||
#define FLUIDINC
|
||||
#include "config.h"
|
||||
#if !C_FLUIDSYNTH && defined(WIN32) && !defined(C_HX_DOS)
|
||||
#include "fluid_synth.h"
|
||||
#include "fluid_adriver.h"
|
||||
#include "fluid_settings.h"
|
||||
|
||||
#if defined(C_SDL2)
|
||||
|
||||
#include "SDL.h"
|
||||
|
||||
typedef struct
|
||||
{
|
||||
fluid_audio_driver_t driver;
|
||||
|
||||
fluid_synth_t *synth;
|
||||
fluid_audio_callback_t write_ptr;
|
||||
|
||||
SDL_AudioDeviceID devid;
|
||||
|
||||
int frame_size;
|
||||
|
||||
} fluid_sdl2_audio_driver_t;
|
||||
int delete_fluid_sdl2_audio_driver(fluid_audio_driver_t* d);
|
||||
|
||||
static void
|
||||
SDLAudioCallback(void *data, void *stream, int len)
|
||||
{
|
||||
fluid_sdl2_audio_driver_t *dev = (fluid_sdl2_audio_driver_t *)data;
|
||||
|
||||
len /= dev->frame_size;
|
||||
|
||||
dev->write_ptr(dev->synth, len, stream, 0, 2, stream, 1, 2);
|
||||
}
|
||||
|
||||
void fluid_sdl2_audio_driver_settings(fluid_settings_t *settings)
|
||||
{
|
||||
int n, nDevs;
|
||||
|
||||
fluid_settings_register_str(settings, "audio.sdl2.device", "default", 0,NULL,NULL);
|
||||
fluid_settings_add_option(settings, "audio.sdl2.device", "default");
|
||||
|
||||
if(!SDL_WasInit(SDL_INIT_AUDIO))
|
||||
{
|
||||
FLUID_LOG(FLUID_ERR, "SDL2 not initialized");
|
||||
return;
|
||||
}
|
||||
|
||||
nDevs = SDL_GetNumAudioDevices(0);
|
||||
|
||||
for(n = 0; n < nDevs; n++)
|
||||
{
|
||||
const char *dev_name = SDL_GetAudioDeviceName(n, 0);
|
||||
|
||||
if(dev_name != NULL)
|
||||
{
|
||||
FLUID_LOG(FLUID_DBG, "SDL2 driver testing audio device: %s", dev_name);
|
||||
fluid_settings_add_option(settings, "audio.sdl2.device", dev_name);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* new_fluid_sdl2_audio_driver
|
||||
*/
|
||||
fluid_audio_driver_t *
|
||||
new_fluid_sdl2_audio_driver(fluid_settings_t *settings, fluid_synth_t *synth)
|
||||
{
|
||||
fluid_sdl2_audio_driver_t *dev = NULL;
|
||||
fluid_audio_callback_t write_ptr;
|
||||
double sample_rate;
|
||||
int period_size, sample_size;
|
||||
SDL_AudioSpec aspec, rspec;
|
||||
char *device;
|
||||
const char *dev_name;
|
||||
|
||||
/* Check if SDL library has been started */
|
||||
if(!SDL_WasInit(SDL_INIT_AUDIO))
|
||||
{
|
||||
FLUID_LOG(FLUID_ERR, "Failed to create SDL2 audio driver, because the audio subsystem of SDL2 is not initialized.");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Retrieve the settings */
|
||||
fluid_settings_getnum(settings, "synth.sample-rate", &sample_rate);
|
||||
fluid_settings_getint(settings, "audio.period-size", &period_size);
|
||||
|
||||
/* Lower values do not seem to give good results */
|
||||
if(period_size < 1024)
|
||||
{
|
||||
period_size = 1024;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* According to documentation, it MUST be a power of two */
|
||||
if((period_size & (period_size - 1)) != 0)
|
||||
{
|
||||
FLUID_LOG(FLUID_ERR, "\"audio.period-size\" must be a power of 2 for SDL2");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
/* Clear the format buffer */
|
||||
FLUID_MEMSET(&aspec, 0, sizeof(aspec));
|
||||
|
||||
/* Setup mixing frequency */
|
||||
aspec.freq = (int)sample_rate;
|
||||
|
||||
/* Check the format */
|
||||
if(fluid_settings_str_equal(settings, "audio.sample-format", "float"))
|
||||
{
|
||||
FLUID_LOG(FLUID_DBG, "Selected 32 bit sample format");
|
||||
|
||||
sample_size = sizeof(float);
|
||||
write_ptr = fluid_synth_write_float;
|
||||
|
||||
aspec.format = AUDIO_F32SYS;
|
||||
}
|
||||
else if(fluid_settings_str_equal(settings, "audio.sample-format", "16bits"))
|
||||
{
|
||||
FLUID_LOG(FLUID_DBG, "Selected 16 bit sample format");
|
||||
|
||||
sample_size = sizeof(short);
|
||||
write_ptr = fluid_synth_write_s16;
|
||||
|
||||
aspec.format = AUDIO_S16SYS;
|
||||
}
|
||||
else
|
||||
{
|
||||
FLUID_LOG(FLUID_ERR, "Unhandled sample format");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Compile the format buffer */
|
||||
aspec.channels = 2;
|
||||
aspec.samples = aspec.channels * ((period_size + 7) & ~7);
|
||||
aspec.callback = (SDL_AudioCallback)SDLAudioCallback;
|
||||
|
||||
/* Set default device to use */
|
||||
device = NULL;
|
||||
dev_name = NULL;
|
||||
|
||||
/* get the selected device name. if none is specified, use default device. */
|
||||
if(fluid_settings_dupstr(settings, "audio.sdl2.device", &device) == FLUID_OK
|
||||
&& device != NULL && device[0] != '\0')
|
||||
{
|
||||
int n, nDevs = SDL_GetNumAudioDevices(0);
|
||||
|
||||
for(n = 0; n < nDevs; n++)
|
||||
{
|
||||
dev_name = SDL_GetAudioDeviceName(n, 0);
|
||||
|
||||
if(FLUID_STRCASECMP(dev_name, device) == 0)
|
||||
{
|
||||
FLUID_LOG(FLUID_DBG, "Selected audio device GUID: %s", dev_name);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(n >= nDevs)
|
||||
{
|
||||
FLUID_LOG(FLUID_DBG, "Audio device %s, using \"default\"", device);
|
||||
dev_name = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
if(device != NULL)
|
||||
{
|
||||
FLUID_FREE(device);
|
||||
}
|
||||
|
||||
do
|
||||
{
|
||||
/* create and clear the driver data */
|
||||
dev = FLUID_NEW(fluid_sdl2_audio_driver_t);
|
||||
|
||||
if(dev == NULL)
|
||||
{
|
||||
FLUID_LOG(FLUID_ERR, "Out of memory");
|
||||
break;
|
||||
}
|
||||
|
||||
FLUID_MEMSET(dev, 0, sizeof(fluid_sdl2_audio_driver_t));
|
||||
|
||||
/* set device pointer to userdata */
|
||||
aspec.userdata = dev;
|
||||
|
||||
/* Save copy of synth */
|
||||
dev->synth = synth;
|
||||
|
||||
/* Save copy of other variables */
|
||||
dev->write_ptr = write_ptr;
|
||||
dev->frame_size = sample_size * aspec.channels;
|
||||
|
||||
/* Open audio device */
|
||||
dev->devid = SDL_OpenAudioDevice(dev_name, 0, &aspec, &rspec, 0);
|
||||
|
||||
if(!dev->devid)
|
||||
{
|
||||
FLUID_LOG(FLUID_ERR, "Failed to open audio device");
|
||||
break;
|
||||
}
|
||||
|
||||
/* Start to play */
|
||||
SDL_PauseAudioDevice(dev->devid, 0);
|
||||
|
||||
return (fluid_audio_driver_t *) dev;
|
||||
}
|
||||
while(0);
|
||||
|
||||
int rt=delete_fluid_sdl2_audio_driver(&dev->driver);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
int delete_fluid_sdl2_audio_driver(fluid_audio_driver_t *d)
|
||||
{
|
||||
fluid_sdl2_audio_driver_t *dev = (fluid_sdl2_audio_driver_t *) d;
|
||||
|
||||
if(dev != NULL)
|
||||
{
|
||||
if(dev->devid)
|
||||
{
|
||||
/* Stop audio and close */
|
||||
SDL_PauseAudioDevice(dev->devid, 1);
|
||||
SDL_CloseAudioDevice(dev->devid);
|
||||
}
|
||||
|
||||
FLUID_FREE(dev);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* SDL2_SUPPORT */
|
||||
#endif
|
||||
Loading…
x
Reference in New Issue
Block a user