Mercurial > sdl-ios-xcode

annotate src/audio/openbsd/SDL_openbsdaudio.c @ 1565:57431b199aed

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Fixed bug #52 Integrated most of the NetBSD and DragonFly patches at: ftp://ftp.netbsd.org/pub/NetBSD/packages/pkgsrc/devel/SDL/patches/ Thanks to Thomas Klausner for defailed information on the patches
author Sam Lantinga <slouken@libsdl.org>
date Tue, 21 Mar 2006 08:54:50 +0000
parents d910939febfa
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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b8d311d90021 Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /*
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25 * Driver for native OpenBSD audio(4).
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26 * vedge@vedge.com.ar.
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27 */
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28
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29 #include <errno.h>
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30 #include <unistd.h>
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31 #include <fcntl.h>
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32 #include <sys/time.h>
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33 #include <sys/ioctl.h>
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34 #include <sys/stat.h>
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35 #include <sys/types.h>
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36 #include <sys/audioio.h>
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37
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38 #include "SDL_timer.h"
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39 #include "SDL_audio.h"
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40 #include "../SDL_audiomem.h"
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41 #include "../SDL_audio_c.h"
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42 #include "../SDL_audiodev_c.h"
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43 #include "SDL_openbsdaudio.h"
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44
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45 /* The tag name used by NetBSD/OpenBSD audio */
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46 #ifdef __NETBSD__
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47 #define OBSD_DRIVER_NAME "netbsd"
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48 #else
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49 #define OBSD_DRIVER_NAME "openbsd"
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50 #endif
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51
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52 /* Open the audio device for playback, and don't block if busy */
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53 /* #define USE_BLOCKING_WRITES */
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54
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55 /* Use timer for synchronization */
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56 /* #define USE_TIMER_SYNC */
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57
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58 /* #define DEBUG_AUDIO */
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59 /* #define DEBUG_AUDIO_STREAM */
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60
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61 #ifdef USE_BLOCKING_WRITES
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62 #define OPEN_FLAGS O_WRONLY
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63 #else
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64 #define OPEN_FLAGS (O_WRONLY|O_NONBLOCK)
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65 #endif
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66
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67 /* Audio driver functions */
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68 static void OBSD_WaitAudio(_THIS);
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69 static int OBSD_OpenAudio(_THIS, SDL_AudioSpec *spec);
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70 static void OBSD_PlayAudio(_THIS);
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71 static Uint8 *OBSD_GetAudioBuf(_THIS);
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72 static void OBSD_CloseAudio(_THIS);
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73
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74 #ifdef DEBUG_AUDIO
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75 static void OBSD_Status(_THIS);
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76 #endif
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77
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78 /* Audio driver bootstrap functions */
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79
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80 static int
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81 Audio_Available(void)
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82 {
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83 int fd;
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84 int available;
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85
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86 available = 0;
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87 fd = SDL_OpenAudioPath(NULL, 0, OPEN_FLAGS, 0);
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88 if(fd >= 0) {
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89 available = 1;
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90 close(fd);
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91 }
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92 return(available);
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93 }
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94
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95 static void
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96 Audio_DeleteDevice(SDL_AudioDevice *device)
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97 {
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98 SDL_free(device->hidden);
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99 SDL_free(device);
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100 }
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101
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102 static SDL_AudioDevice
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103 *Audio_CreateDevice(int devindex)
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104 {
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105 SDL_AudioDevice *this;
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106
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107 /* Initialize all variables that we clean on shutdown */
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108 this = (SDL_AudioDevice*)SDL_malloc(sizeof(SDL_AudioDevice));
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109 if(this) {
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110 SDL_memset(this, 0, (sizeof *this));
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111 this->hidden =
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112 (struct SDL_PrivateAudioData*)SDL_malloc((sizeof *this->hidden));
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113 }
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114 if((this == NULL) || (this->hidden == NULL)) {
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115 SDL_OutOfMemory();
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116 if(this) SDL_free(this);
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117 return(0);
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118 }
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119 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
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120 audio_fd = -1;
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121
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122 /* Set the function pointers */
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123 this->OpenAudio = OBSD_OpenAudio;
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124 this->WaitAudio = OBSD_WaitAudio;
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125 this->PlayAudio = OBSD_PlayAudio;
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126 this->GetAudioBuf = OBSD_GetAudioBuf;
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127 this->CloseAudio = OBSD_CloseAudio;
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128
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129 this->free = Audio_DeleteDevice;
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130
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131 return this;
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132 }
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133
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134 AudioBootStrap OPENBSD_AUDIO_bootstrap = {
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135 #ifdef __NETBSD__
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136 OBSD_DRIVER_NAME, "Native NetBSD audio",
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137 #else
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138 OBSD_DRIVER_NAME, "Native OpenBSD audio",
1565
57431b199aed Fixed bug #52
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
139 #endif
37
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parents:
diff changeset
140 Audio_Available, Audio_CreateDevice
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
141 };
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
142
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
143 /* This function waits until it is possible to write a full sound buffer */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
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parents:
diff changeset
144 static void
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
145 OBSD_WaitAudio(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
146 {
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
147 #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
148 /* 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
149 if ( frame_ticks ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
150 /* 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
151 Sint32 ticks;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
152
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
153 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
154 if ( ticks > 0 ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
155 SDL_Delay(ticks);
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
156 }
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
157 } else {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
158 /* Use select() for audio synchronization */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
159 fd_set fdset;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
160 struct timeval timeout;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
161
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
162 FD_ZERO(&fdset);
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
163 FD_SET(audio_fd, &fdset);
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
164 timeout.tv_sec = 10;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
165 timeout.tv_usec = 0;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
166 #ifdef DEBUG_AUDIO
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
167 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
168 #endif
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
169 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
170 const char *message =
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
171 "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
172 /* 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
173 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
174 the user know what happened.
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
175 */
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
176 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
177 this->enabled = 0;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
178 /* 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
179 audio_fd = -1;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
180 #ifdef DEBUG_AUDIO
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
181 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
182 #endif
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 #ifdef DEBUG_AUDIO
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
185 fprintf(stderr, "Ready!\n");
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
186 #endif
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
187 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
188 #endif /* !USE_BLOCKING_WRITES */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
189 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
190
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
191 static void
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
192 OBSD_PlayAudio(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
193 {
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
194 int written, p=0;
37
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parents:
diff changeset
195
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
196 /* 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
197 do {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
198 written = write(audio_fd, &mixbuf[p], mixlen-p);
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Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
199 if (written>0)
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
200 p += written;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
201 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
202 {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
203 /* 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
204 perror("audio");
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
205 break;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
206 }
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
208 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
209 SDL_Delay(1); /* Let a little CPU time go by */
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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 } while ( p < written );
37
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parents:
diff changeset
212
94
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Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
213 /* If timer synchronization is enabled, set the next write frame */
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Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
214 if ( frame_ticks ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
215 next_frame += frame_ticks;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
216 }
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
218 /* 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
219 if ( written < 0 ) {
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
220 this->enabled = 0;
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
221 }
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
222 #ifdef DEBUG_AUDIO
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 37
diff changeset
223 fprintf(stderr, "Wrote %d bytes of audio data\n", written);
37
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 #endif
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
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parents:
diff changeset
225 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
226
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227 static Uint8
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
228 *OBSD_GetAudioBuf(_THIS)
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parents:
diff changeset
229 {
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parents:
diff changeset
230 return(mixbuf);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
231 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
232
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
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parents:
diff changeset
233 static void
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
234 OBSD_CloseAudio(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
236 if(mixbuf != NULL) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 SDL_FreeAudioMem(mixbuf);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238 mixbuf = NULL;
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 if(audio_fd >= 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
241 close(audio_fd);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242 audio_fd = -1;
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 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
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parents:
diff changeset
246 #ifdef DEBUG_AUDIO
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247 void
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 OBSD_Status(_THIS)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
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parents:
diff changeset
249 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
250 audio_info_t info;
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 if(ioctl(audio_fd, AUDIO_GETINFO, &info) < 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
253 fprintf(stderr,"AUDIO_GETINFO failed.\n");
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 return;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
256
1186
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
257 fprintf(stderr,"\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
258 "[play/record info]\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
259 "buffer size : %d bytes\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
260 "sample rate : %i Hz\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
261 "channels : %i\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
262 "precision : %i-bit\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
263 "encoding : 0x%x\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
264 "seek : %i\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
265 "sample count : %i\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
266 "EOF count : %i\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
267 "paused : %s\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
268 "error occured : %s\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
269 "waiting : %s\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
270 "active : %s\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
271 "",
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 info.play.buffer_size,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 info.play.sample_rate,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 info.play.channels,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 info.play.precision,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 info.play.encoding,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 info.play.seek,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 info.play.samples,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 info.play.eof,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 info.play.pause ? "yes" : "no",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 info.play.error ? "yes" : "no",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 info.play.waiting ? "yes" : "no",
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
283 info.play.active ? "yes": "no");
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284
1186
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
285 fprintf(stderr,"\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
286 "[audio info]\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
287 "monitor_gain : %i\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
288 "hw block size : %d bytes\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
289 "hi watermark : %i\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
290 "lo watermark : %i\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
291 "audio mode : %s\n"
0276947bee66 Patched OpenBSD audio to compile on newer GCC versions.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
292 "",
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 info.monitor_gain,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 info.blocksize,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 info.hiwat, info.lowat,
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 (info.mode == AUMODE_PLAY) ? "PLAY"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 : (info.mode = AUMODE_RECORD) ? "RECORD"
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 : (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL"
543
522e5202014d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
299 : "?"));
37
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 #endif /* DEBUG_AUDIO */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 static int
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 OBSD_OpenAudio(_THIS, SDL_AudioSpec *spec)
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305 {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 char audiodev[64];
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
307 Uint16 format;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 audio_info_t info;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 AUDIO_INITINFO(&info);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 /* Calculate the final parameters for this audio specification */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 SDL_CalculateAudioSpec(spec);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
315 #ifdef USE_TIMER_SYNC
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
316 frame_ticks = 0.0;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 #endif
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 /* Open the audio device */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320 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
321 if(audio_fd < 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322 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
323 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
324 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
326 /* Set to play mode */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
327 info.mode = AUMODE_PLAY;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
328 if(ioctl(audio_fd, AUDIO_SETINFO, &info) < 0) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
329 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
330 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
331 }
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
332
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333 mixbuf = NULL;
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
334 AUDIO_INITINFO(&info);
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
335 for (format = SDL_FirstAudioFormat(spec->format);
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
336 format; format = SDL_NextAudioFormat())
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337 {
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
338 switch(format) {
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
339 case AUDIO_U8:
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
340 info.play.encoding = AUDIO_ENCODING_ULINEAR;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
341 info.play.precision = 8;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
342 break;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
343 case AUDIO_S8:
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
344 info.play.encoding = AUDIO_ENCODING_SLINEAR;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
345 info.play.precision = 8;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
346 break;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
347 case AUDIO_S16LSB:
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
348 info.play.encoding = AUDIO_ENCODING_SLINEAR_LE;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
349 info.play.precision = 16;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
350 break;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
351 case AUDIO_S16MSB:
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
352 info.play.encoding = AUDIO_ENCODING_SLINEAR_BE;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
353 info.play.precision = 16;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
354 break;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
355 case AUDIO_U16LSB:
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
356 info.play.encoding = AUDIO_ENCODING_ULINEAR_LE;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
357 info.play.precision = 16;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
358 break;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
359 case AUDIO_U16MSB:
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
360 info.play.encoding = AUDIO_ENCODING_ULINEAR_BE;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
361 info.play.precision = 16;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
362 break;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
363 default:
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
364 continue;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
365 }
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
366 if (ioctl(audio_fd, AUDIO_SETINFO, &info) == 0)
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
367 break;
37
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
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
370 if(!format) {
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
371 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
372 return(-1);
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
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
375 spec->format = format;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
377 AUDIO_INITINFO(&info);
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378 info.play.channels = spec->channels;
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
379 if (ioctl(audio_fd, AUDIO_SETINFO, &info) == -1)
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
380 spec->channels = 1;
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
381 AUDIO_INITINFO(&info);
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 info.play.sample_rate = spec->freq;
1565
57431b199aed Fixed bug #52
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
383 info.blocksize = spec->size;
57431b199aed Fixed bug #52
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
384 info.hiwat = 5;
57431b199aed Fixed bug #52
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
385 info.lowat = 3;
131
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
386 (void)ioctl(audio_fd, AUDIO_SETINFO, &info);
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
387 (void)ioctl(audio_fd, AUDIO_GETINFO, &info);
5d08b230932e Fixed audio format selection for OpenBSD (thanks Peter!)
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
388 spec->freq = info.play.sample_rate;
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
389 /* Allocate mixing buffer */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390 mixlen = spec->size;
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 mixbuf = (Uint8*)SDL_AllocAudioMem(mixlen);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392 if(mixbuf == NULL) {
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393 return(-1);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394 }
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1186
diff changeset
395 SDL_memset(mixbuf, spec->silence, spec->size);
37
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 /* 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
398 parent = getpid();
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
400 #ifdef DEBUG_AUDIO
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 OBSD_Status(this);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 #endif
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404 /* We're ready to rock and roll. :-) */
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 return(0);
3ad7157c6cfa Added native OpenBSD audio driver (thanks vedge!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 }