1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* 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 "../../verbosity.h"
typedef struct
{
roar_vs_t *vss;
bool nonblocking;
bool is_paused;
} roar_t;
static void *ra_init(const char *device, unsigned rate, unsigned latency,
unsigned block_frames, unsigned *new_rate)
{
int err;
roar_vs_t *vss = NULL;
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)))
{
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)
{
RARCH_ERR("Can't set nonblocking. Will not be able to fast-forward.\n");
}
roar->nonblocking = state;
}
static bool ra_start(void *data, bool is_shutdown)
{
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
};
|
