Mercurial > sdl-ios-xcode

annotate src/audio/openbsd/SDL_openbsdaudio.c @ 121:43febd46d49d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Name changed from OBSD to OPENBSD_AUDIO
author Sam Lantinga <slouken@libsdl.org>
date Mon, 23 Jul 2001 02:58:42 +0000
parents ae6e6b73333f
children 5d08b230932e
rev   line source
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1 /*
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
4
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
6 modify it under the terms of the GNU Library General Public
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
8 version 2 of the License, or (at your option) any later version.
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
9
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
13 Library General Public License for more details.
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
14
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
15 You should have received a copy of the GNU Library General Public
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
16 License along with this library; if not, write to the Free
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
18
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
19 Sam Lantinga
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
20 slouken@devolution.com
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
21 */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
22
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
23 /*
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
24 * Driver for native OpenBSD audio(4).
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
25 * vedge@vedge.com.ar.
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
26 */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
27
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
28 #include <stdlib.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
29 #include <stdio.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
30 #include <string.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
31 #include <errno.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
32 #include <unistd.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
33 #include <fcntl.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
34 #include <signal.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
35 #include <sys/time.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
36 #include <sys/ioctl.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
37 #include <sys/stat.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
38 #include <sys/types.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
39 #include <sys/audioio.h>
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
40
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
41 #include "SDL_audio.h"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
42 #include "SDL_error.h"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
43 #include "SDL_audiomem.h"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
44 #include "SDL_audio_c.h"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
45 #include "SDL_timer.h"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
46 #include "SDL_audiodev_c.h"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
47 #include "SDL_openbsdaudio.h"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
48
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
49 /* The tag name used by OpenBSD audio */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
50 #define OBSD_DRIVER_NAME "openbsd"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
51
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
52 /* Open the audio device for playback, and don't block if busy */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
53 /* #define USE_BLOCKING_WRITES */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
54
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
55 /* Use timer for synchronization */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
56 /* #define USE_TIMER_SYNC */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
57
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
58 /* #define DEBUG_AUDIO */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
59 /* #define DEBUG_AUDIO_STREAM */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
60
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
61 #ifdef USE_BLOCKING_WRITES
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
62 #define OPEN_FLAGS O_WRONLY
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
63 #else
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
64 #define OPEN_FLAGS (O_WRONLY|O_NONBLOCK)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
65 #endif
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
66
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
67 /* Audio driver functions */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
68 static void OBSD_WaitAudio(_THIS);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
69 static int OBSD_OpenAudio(_THIS, SDL_AudioSpec *spec);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
70 static void OBSD_PlayAudio(_THIS);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
71 static Uint8 *OBSD_GetAudioBuf(_THIS);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
72 static void OBSD_CloseAudio(_THIS);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
73
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
74 #ifdef DEBUG_AUDIO
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
75 static void OBSD_Status(_THIS);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
76 #endif
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
77
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
78 /* Audio driver bootstrap functions */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
79
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
80 static int
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
81 Audio_Available(void)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
82 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
83 int fd;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
84 int available;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
85
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
86 available = 0;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
87 fd = SDL_OpenAudioPath(NULL, 0, OPEN_FLAGS, 0);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
88 if(fd >= 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
89 available = 1;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
90 close(fd);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
91 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
92 return(available);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
93 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
94
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
95 static void
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
96 Audio_DeleteDevice(SDL_AudioDevice *device)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
97 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
98 free(device->hidden);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
99 free(device);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
100 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
101
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
102 static SDL_AudioDevice
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
103 *Audio_CreateDevice(int devindex)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
104 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
105 SDL_AudioDevice *this;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
106
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
107 /* Initialize all variables that we clean on shutdown */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
108 this = (SDL_AudioDevice*)malloc(sizeof(SDL_AudioDevice));
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
109 if(this) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
110 memset(this, 0, (sizeof *this));
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
111 this->hidden =
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
112 (struct SDL_PrivateAudioData*)malloc((sizeof *this->hidden));
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
113 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
114 if((this == NULL) || (this->hidden == NULL)) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
115 SDL_OutOfMemory();
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
116 if(this) free(this);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
117 return(0);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
118 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
119 memset(this->hidden, 0, (sizeof *this->hidden));
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
120 audio_fd = -1;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
121
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
122 /* Set the function pointers */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
123 this->OpenAudio = OBSD_OpenAudio;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
124 this->WaitAudio = OBSD_WaitAudio;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
125 this->PlayAudio = OBSD_PlayAudio;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
126 this->GetAudioBuf = OBSD_GetAudioBuf;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
127 this->CloseAudio = OBSD_CloseAudio;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
128
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
129 this->free = Audio_DeleteDevice;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
130
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
131 return this;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
132 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
133
121
43febd46d49d Name changed from OBSD to OPENBSD_AUDIO
Sam Lantinga <slouken@libsdl.org>
parents: 94
diff changeset
134 AudioBootStrap OPENBSD_AUDIO_bootstrap = {
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
135 OBSD_DRIVER_NAME, "Native OpenBSD audio",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
136 Audio_Available, Audio_CreateDevice
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
137 };
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
138
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
139 /* This function waits until it is possible to write a full sound buffer */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
140 static void
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
141 OBSD_WaitAudio(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
142 {
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
143 /* Check to see if the thread-parent process is still alive */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
144 { static int cnt = 0;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
145 /* Note that this only works with thread implementations
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
146 that use a different process id for each thread.
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
147 */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
148 if (parent && (((++cnt)%10) == 0)) { /* Check every 10 loops */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
149 if ( kill(parent, 0) < 0 ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
150 this->enabled = 0;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
151 }
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
152 }
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
153 }
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
154
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
155 #ifndef USE_BLOCKING_WRITES /* Not necessary when using blocking writes */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
156 /* See if we need to use timed audio synchronization */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
157 if ( frame_ticks ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
158 /* Use timer for general audio synchronization */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
159 Sint32 ticks;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
160
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
161 ticks = ((Sint32)(next_frame - SDL_GetTicks()))-FUDGE_TICKS;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
162 if ( ticks > 0 ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
163 SDL_Delay(ticks);
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
164 }
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
165 } else {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
166 /* Use select() for audio synchronization */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
167 fd_set fdset;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
168 struct timeval timeout;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
169
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
170 FD_ZERO(&fdset);
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
171 FD_SET(audio_fd, &fdset);
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
172 timeout.tv_sec = 10;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
173 timeout.tv_usec = 0;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
174 #ifdef DEBUG_AUDIO
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
175 fprintf(stderr, "Waiting for audio to get ready\n");
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
176 #endif
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
177 if ( select(audio_fd+1, NULL, &fdset, NULL, &timeout) <= 0 ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
178 const char *message =
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
179 "Audio timeout - buggy audio driver? (disabled)";
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
180 /* In general we should never print to the screen,
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
181 but in this case we have no other way of letting
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
182 the user know what happened.
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
183 */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
184 fprintf(stderr, "SDL: %s\n", message);
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
185 this->enabled = 0;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
186 /* Don't try to close - may hang */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
187 audio_fd = -1;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
188 #ifdef DEBUG_AUDIO
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
189 fprintf(stderr, "Done disabling audio\n");
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
190 #endif
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
191 }
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
192 #ifdef DEBUG_AUDIO
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
193 fprintf(stderr, "Ready!\n");
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
194 #endif
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
195 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
196 #endif /* !USE_BLOCKING_WRITES */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
197 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
198
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
199 static void
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
200 OBSD_PlayAudio(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
201 {
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
202 int written, p=0;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
203
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
204 /* Write the audio data, checking for EAGAIN on broken audio drivers */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
205 do {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
206 written = write(audio_fd, &mixbuf[p], mixlen-p);
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
207 if (written>0)
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
208 p += written;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
209 if (written == -1 && errno != 0 && errno != EAGAIN && errno != EINTR)
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
210 {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
211 /* Non recoverable error has occurred. It should be reported!!! */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
212 perror("audio");
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
213 break;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
214 }
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
215
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
216 if ( p < written || ((written < 0) && ((errno == 0) || (errno == EAGAIN))) ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
217 SDL_Delay(1); /* Let a little CPU time go by */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
218 }
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
219 } while ( p < written );
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
220
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
221 /* If timer synchronization is enabled, set the next write frame */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
222 if ( frame_ticks ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
223 next_frame += frame_ticks;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
224 }
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
225
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
226 /* If we couldn't write, assume fatal error for now */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
227 if ( written < 0 ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
228 this->enabled = 0;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
229 }
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
230 #ifdef DEBUG_AUDIO
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
231 fprintf(stderr, "Wrote %d bytes of audio data\n", written);
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
232 #endif
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
233 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
234
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 static Uint8
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
236 *OBSD_GetAudioBuf(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238 return(mixbuf);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
239 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
240
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
241 static void
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242 OBSD_CloseAudio(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
244 if(mixbuf != NULL) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245 SDL_FreeAudioMem(mixbuf);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
246 mixbuf = NULL;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 if(audio_fd >= 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
249 close(audio_fd);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
250 audio_fd = -1;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
251 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
252 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
253
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 #ifdef DEBUG_AUDIO
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 void
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
256 OBSD_Status(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
257 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
258 audio_info_t info;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
259
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
260 if(ioctl(audio_fd, AUDIO_GETINFO, &info) < 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
261 fprintf(stderr,"AUDIO_GETINFO failed.\n");
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
262 return;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
265 fprintf(stderr,"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 [play/record info]
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267 buffer size : %d bytes
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268 sample rate : %i Hz
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 channels : %i
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270 precision : %i-bit
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271 encoding : 0x%x
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 seek : %i
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 sample count : %i
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 EOF count : %i
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 paused : %s
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 error occured : %s
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 waiting : %s
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 active : %s
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 ",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 info.play.buffer_size,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 info.play.sample_rate,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 info.play.channels,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
283 info.play.precision,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284 info.play.encoding,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 info.play.seek,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 info.play.samples,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287 info.play.eof,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 info.play.pause ? "yes" : "no",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289 info.play.error ? "yes" : "no",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 info.play.waiting ? "yes" : "no",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 info.play.active ? "yes": "no");
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 fprintf(stderr,"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 [audio info]
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 monitor_gain : %i
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 hw block size : %d bytes
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 hi watermark : %i
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 lo watermark : %i
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 audio mode : %s
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 ",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 info.monitor_gain,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302 info.blocksize,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 info.hiwat, info.lowat,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 (info.mode == AUMODE_PLAY) ? "PLAY"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305 : (info.mode = AUMODE_RECORD) ? "RECORD"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 : (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307 : "???"));
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 #endif /* DEBUG_AUDIO */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 static int
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 OBSD_OpenAudio(_THIS, SDL_AudioSpec *spec)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314 char audiodev[64];
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
315 Uint16 setenc;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
316 audio_encoding_t enc;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 audio_info_t info;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
318
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
319 AUDIO_INITINFO(&info);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
321 /* Calculate the final parameters for this audio specification */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322 SDL_CalculateAudioSpec(spec);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
323
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
324 #ifdef USE_TIMER_SYNC
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325 frame_ticks = 0.0;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
326 #endif
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
327
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
328 /* Open the audio device */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
329 audio_fd = SDL_OpenAudioPath(audiodev, sizeof(audiodev), OPEN_FLAGS, 0);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
330 if(audio_fd < 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
331 SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno));
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
332 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
334
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
335 /* Set to play mode */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336 info.mode = AUMODE_PLAY;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337 if(ioctl(audio_fd, AUDIO_SETINFO, &info) < 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
338 SDL_SetError("Couldn't put device into play mode");
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
339 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
340 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
341
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
342 mixbuf = NULL;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
343 setenc = 0;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
344
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
345 for(enc.index = 0; (ioctl(audio_fd, AUDIO_GETENC, &enc)>=0)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346 && (enc.encoding != setenc); enc.index++)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
347 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
348 switch(spec->format)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
350 case AUDIO_U8: /* 8-bit unsigned linear */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
351 setenc = AUDIO_ENCODING_PCM8;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
352 break;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
353 case AUDIO_S8: /* 8-bit signed linear */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354 setenc = AUDIO_ENCODING_SLINEAR;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
355 break;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
356 case AUDIO_U16LSB: /* 16-bit unsigned linear, LSB */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
357 setenc = AUDIO_ENCODING_ULINEAR_LE;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
358 break;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
359 case AUDIO_U16MSB: /* 16-bit unsigned linear, MSB */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
360 setenc = AUDIO_ENCODING_ULINEAR_BE;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
361 break;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
362 case AUDIO_S16LSB: /* 16-bit signed linear, LSB */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
363 setenc = AUDIO_ENCODING_SLINEAR_LE;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
364 break;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
365 case AUDIO_S16MSB: /* 16-bit signed linear, MSB */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
366 setenc = AUDIO_ENCODING_SLINEAR_BE;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
367 break;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
368 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 #ifdef DEBUG_AUDIO
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
370 fprintf(stderr,"encoding #%i: \"%s\" %i-bit (0x%x) flags=%i...\n",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
371 enc.index, enc.name, enc.precision, enc.encoding, enc.flags);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372 #endif
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
373 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
374
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
375 if(!setenc) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376 SDL_SetError("No supported encoding for 0x%x", spec->format);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
377 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
379
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
380 /* Set audio encoding */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
381 info.play.encoding = enc.encoding;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 info.play.precision = enc.precision;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
383 if((ioctl(audio_fd, AUDIO_SETINFO, &info) < 0)) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
384 SDL_SetError("Couldn't set encoding to 0x%x %i-bit",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
385 enc.encoding, enc.precision);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
387 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
388
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
389 /* Set audio channels */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390 info.play.channels = spec->channels;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 if(ioctl(audio_fd, AUDIO_SETINFO, &info) < 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392 info.play.channels = (spec->channels > 1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393 ioctl(audio_fd, AUDIO_SETINFO, &info);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396 /* Set the sample rate */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 info.play.sample_rate = spec->freq;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398 if(ioctl(audio_fd, AUDIO_SETINFO, &info) < 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399 SDL_SetError("Couldn't set sample rate to %i Hz", spec->freq);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
400 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403 /* Allocate mixing buffer */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404 mixlen = spec->size;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 mixbuf = (Uint8*)SDL_AllocAudioMem(mixlen);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 if(mixbuf == NULL) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
408 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 memset(mixbuf, spec->silence, spec->size);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 /* Get the parent process id (we're the parent of the audio thread) */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412 parent = getpid();
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414 #ifdef DEBUG_AUDIO
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415 OBSD_Status(this);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416 #endif
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
417
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 /* We're ready to rock and roll. :-) */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419 return(0);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420 }