mirror of
https://github.com/libretro/RetroArch
synced 2024-12-29 12:31:05 +00:00
150 lines
3.1 KiB
C
150 lines
3.1 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
|
|
*
|
|
* RetroArch is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* RetroArch 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with RetroArch.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#include <roaraudio.h>
|
|
|
|
#include <boolean.h>
|
|
|
|
#include "../audio_driver.h"
|
|
#include "../../configuration.h"
|
|
|
|
typedef struct
|
|
{
|
|
roar_vs_t *vss;
|
|
bool nonblocking;
|
|
} roar_t;
|
|
|
|
static void *ra_init(const char *device, unsigned rate, unsigned latency)
|
|
{
|
|
int err;
|
|
roar_vs_t *vss;
|
|
roar_t *roar = (roar_t*)calloc(1, sizeof(roar_t));
|
|
|
|
if (!roar)
|
|
return NULL;
|
|
|
|
(void)latency;
|
|
|
|
if ((vss = roar_vs_new_simple(device, "RetroArch", rate, 2, ROAR_CODEC_PCM_S, 16, ROAR_DIR_PLAY, &err)) == NULL)
|
|
{
|
|
RARCH_ERR("RoarAudio: \"%s\"\n", roar_vs_strerr(err));
|
|
free(roar);
|
|
return NULL;
|
|
}
|
|
|
|
roar_vs_role(vss, ROAR_ROLE_GAME, NULL);
|
|
roar->vss = vss;
|
|
|
|
return roar;
|
|
}
|
|
|
|
static ssize_t ra_write(void *data, const void *buf, size_t size)
|
|
{
|
|
int err;
|
|
size_t written = 0;
|
|
roar_t *roar = (roar_t*)data;
|
|
|
|
if (size == 0)
|
|
return 0;
|
|
|
|
while (written < size)
|
|
{
|
|
ssize_t rc;
|
|
size_t write_amt = size - written;
|
|
|
|
if ((rc = roar_vs_write(roar->vss, (const char*)buf + written, write_amt, &err)) < (ssize_t)write_amt)
|
|
{
|
|
if (roar->nonblocking)
|
|
return rc;
|
|
else if (rc < 0)
|
|
return -1;
|
|
}
|
|
written += rc;
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
static bool ra_stop(void *data)
|
|
{
|
|
roar_t *roar = (roar_t*)data;
|
|
if (roar)
|
|
roar->is_paused = true;
|
|
return true;
|
|
}
|
|
|
|
static bool ra_alive(void *data)
|
|
{
|
|
roar_t *roar = (roar_t*)data;
|
|
if (!roar)
|
|
return false;
|
|
return !roar->is_paused;
|
|
}
|
|
|
|
static void ra_set_nonblock_state(void *data, bool state)
|
|
{
|
|
roar_t *roar = (roar_t*)data;
|
|
if (roar_vs_blocking(roar->vss, (state) ? ROAR_VS_FALSE : ROAR_VS_TRUE, NULL) < 0)
|
|
fprintf(stderr, "RetroArch [ERROR]: Can't set nonblocking. Will not be able to fast-forward.\n");
|
|
roar->nonblocking = state;
|
|
}
|
|
|
|
static bool ra_start(void *data)
|
|
{
|
|
roar_t *roar = (roar_t*)data;
|
|
if (roar)
|
|
roar->is_paused = false;
|
|
return true;
|
|
}
|
|
|
|
static void ra_free(void *data)
|
|
{
|
|
roar_t *roar = (roar_t*)data;
|
|
roar_vs_close(roar->vss, ROAR_VS_TRUE, NULL);
|
|
free(data);
|
|
}
|
|
|
|
static bool ra_use_float(void *data)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static size_t ra_write_avail(void *data)
|
|
{
|
|
(void)data;
|
|
return 0;
|
|
}
|
|
|
|
audio_driver_t audio_roar = {
|
|
ra_init,
|
|
ra_write,
|
|
ra_stop,
|
|
ra_start,
|
|
ra_alive,
|
|
ra_set_nonblock_state,
|
|
ra_free,
|
|
ra_use_float,
|
|
"roar",
|
|
NULL,
|
|
NULL,
|
|
ra_write_avail,
|
|
NULL
|
|
};
|