sdl-ios-xcode: src/audio/nto/SDL_nto

annotate src/audio/nto/SDL_nto_audio.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device

Audio bootstraps can now specify that a driver is only to be used if explicitly requested (for things like the "disk" driver that is always available but you would never want to default to using). Trimmed out code that can be handled by stubs in the core. The "dummy" driver is pretty damned small now. :)

author	Ryan C. Gordon <icculus@icculus.org>
date	Wed, 04 Oct 2006 21:27:53 +0000
parents	cff63f857ff3
children	d3171647e661

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
769 b8d311d90021 Updated copyright information for 2004 (Happy New Year!) Sam Lantinga <slouken@libsdl.org> parents: 718 diff changeset	3 Copyright (C) 1997-2004 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	6 modify it under the terms of the GNU Library General Public
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	8 version 2 of the License, or (at your option) any later version.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	13 Library General Public License for more details.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	15 You should have received a copy of the GNU Library General Public
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	16 License along with this library; if not, write to the Free
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 #include <errno.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 #include <unistd.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #include <fcntl.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 #include <signal.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #include <sys/types.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 #include <sys/time.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #include <sched.h>
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	31 #include <sys/select.h>
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	32 #include <sys/neutrino.h>
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 #include <sys/asoundlib.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34
1358 c71e05b4dc2e More header massaging... works great on Windows. ;-) Sam Lantinga <slouken@libsdl.org> parents: 1338 diff changeset	35 #include "SDL_timer.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 #include "SDL_audio.h"
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	37 #include "../SDL_audiomem.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	38 #include "../SDL_audio_c.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 #include "SDL_nto_audio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 /* The tag name used by NTO audio */
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	42 #define DRIVER_NAME "qsa-nto"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44 /* default channel communication parameters */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45 #define DEFAULT_CPARAMS_RATE 22050
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46 #define DEFAULT_CPARAMS_VOICES 1
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	47 /* FIXME: need to add in the near future flexible logic with frag_size and frags count */
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	48 #define DEFAULT_CPARAMS_FRAG_SIZE 4096
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 #define DEFAULT_CPARAMS_FRAGS_MIN 1
283 3d8b6b9f1e18 Date: Mon, 18 Feb 2002 16:46:59 +1200 Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	50 #define DEFAULT_CPARAMS_FRAGS_MAX 1
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 /* Open the audio device for playback, and don't block if busy */
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	53 #define OPEN_FLAGS SND_PCM_OPEN_PLAYBACK
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	55 #define QSA_NO_WORKAROUNDS 0x00000000
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	56 #define QSA_MMAP_WORKAROUND 0x00000001
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	57
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	58 struct BuggyCards
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	59 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	60 char *cardname;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	61 unsigned long bugtype;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	62 };
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	63
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	64 #define QSA_WA_CARDS 3
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	65
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	66 struct BuggyCards buggycards[QSA_WA_CARDS] = {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	67 {"Sound Blaster Live!", QSA_MMAP_WORKAROUND},
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	68 {"Vortex 8820", QSA_MMAP_WORKAROUND},
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	69 {"Vortex 8830", QSA_MMAP_WORKAROUND},
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	70 };
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	71
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	72 /* Audio driver functions */
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	73 static void NTO_ThreadInit(_THIS);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	74 static int NTO_OpenAudio(_THIS, SDL_AudioSpec * spec);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 static void NTO_WaitAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 static void NTO_PlayAudio(_THIS);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	77 static Uint8 *NTO_GetAudioBuf(_THIS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78 static void NTO_CloseAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	80 /* card names check to apply the workarounds */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	81 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	82 NTO_CheckBuggyCards(_THIS, unsigned long checkfor)
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	83 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	84 char scardname[33];
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	85 int it;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	86
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	87 if (snd_card_get_name(cardno, scardname, 32) < 0) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	88 return 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	89 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	90
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	91 for (it = 0; it < QSA_WA_CARDS; it++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	92 if (SDL_strcmp(buggycards[it].cardname, scardname) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	93 if (buggycards[it].bugtype == checkfor) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	94 return 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	95 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	96 }
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	97 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	98
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	99 return 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	100 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	101
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	102 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	103 NTO_ThreadInit(_THIS)
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	104 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	105 int status;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	106 struct sched_param param;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	107
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	108 /* increasing default 10 priority to 25 to avoid jerky sound */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	109 status = SchedGet(0, 0, &param);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	110 param.sched_priority = param.sched_curpriority + 15;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	111 status = SchedSet(0, 0, SCHED_NOCHANGE, &param);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	112 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 /* PCM transfer channel parameters initialize function */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	115 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	116 NTO_InitAudioParams(snd_pcm_channel_params_t * cpars)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	118 SDL_memset(cpars, 0, sizeof(snd_pcm_channel_params_t));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	120 cpars->channel = SND_PCM_CHANNEL_PLAYBACK;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	121 cpars->mode = SND_PCM_MODE_BLOCK;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	122 cpars->start_mode = SND_PCM_START_DATA;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	123 cpars->stop_mode = SND_PCM_STOP_STOP;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	124 cpars->format.format = SND_PCM_SFMT_S16_LE;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	125 cpars->format.interleave = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	126 cpars->format.rate = DEFAULT_CPARAMS_RATE;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	127 cpars->format.voices = DEFAULT_CPARAMS_VOICES;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	128 cpars->buf.block.frag_size = DEFAULT_CPARAMS_FRAG_SIZE;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	129 cpars->buf.block.frags_min = DEFAULT_CPARAMS_FRAGS_MIN;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	130 cpars->buf.block.frags_max = DEFAULT_CPARAMS_FRAGS_MAX;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	131 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	133 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	134 NTO_AudioAvailable(void)
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	135 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	136 /* See if we can open a nonblocking channel.
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	137 Return value '1' means we can.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	138 Return value '0' means we cannot. */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	140 int available;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	141 int rval;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	142 snd_pcm_t *handle;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	144 available = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	145 handle = NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	146
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	147 rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	149 if (rval >= 0) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	150 available = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	151
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	152 if ((rval = snd_pcm_close(handle)) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	153 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	154 ("NTO_AudioAvailable(): snd_pcm_close failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	155 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	156 available = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	157 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	158 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	159 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	160 ("NTO_AudioAvailable(): there are no available audio devices.\n");
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	161 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	162
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	163 return (available);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	166 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	167 NTO_DeleteAudioDevice(SDL_AudioDevice * device)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	169 if ((device) && (device->hidden)) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	170 SDL_free(device->hidden);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	171 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	172 if (device) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	173 SDL_free(device);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	174 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	177 static SDL_AudioDevice *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	178 NTO_CreateAudioDevice(int devindex)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	180 SDL_AudioDevice *this;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	181
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	182 /* Initialize all variables that we clean on shutdown */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	183 this = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	184 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	185 SDL_memset(this, 0, sizeof(SDL_AudioDevice));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	186 this->hidden = (struct SDL_PrivateAudioData *)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	187 SDL_malloc(sizeof(struct SDL_PrivateAudioData));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	188 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	189 if ((this == NULL) \|\| (this->hidden == NULL)) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	190 SDL_OutOfMemory();
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	191 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	192 SDL_free(this);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	193 }
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	194 return (0);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	195 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	196 SDL_memset(this->hidden, 0, sizeof(struct SDL_PrivateAudioData));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	197 audio_handle = NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	199 /* Set the function pointers */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	200 this->ThreadInit = NTO_ThreadInit;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	201 this->OpenAudio = NTO_OpenAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	202 this->WaitAudio = NTO_WaitAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	203 this->PlayAudio = NTO_PlayAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	204 this->GetAudioBuf = NTO_GetAudioBuf;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	205 this->CloseAudio = NTO_CloseAudio;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	206
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	207 this->free = NTO_DeleteAudioDevice;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	208
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	209 return this;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	210 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	211
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	212 AudioBootStrap QNXNTOAUDIO_bootstrap = {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	213 DRIVER_NAME, "QNX6 QSA-NTO Audio",
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	214 NTO_AudioAvailable,
3798 c8b3d3d13ed1 Audio bootstraps can now specify that a driver is only to be used if Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	215 NTO_CreateAudioDevice,
c8b3d3d13ed1 Audio bootstraps can now specify that a driver is only to be used if Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	216 0
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	217 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	218
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	219 /* This function waits until it is possible to write a full sound buffer */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	220 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	221 NTO_WaitAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	223 fd_set wfds;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	224 int selectret;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	225
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	226 FD_ZERO(&wfds);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	227 FD_SET(audio_fd, &wfds);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	229 do {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	230 selectret = select(audio_fd + 1, NULL, &wfds, NULL, NULL);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	231 switch (selectret) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	232 case -1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	233 case 0:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	234 SDL_SetError("NTO_WaitAudio(): select() failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	235 strerror(errno));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	236 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	237 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	238 if (FD_ISSET(audio_fd, &wfds)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	239 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	240 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	241 break;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	242 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	243 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	244 while (1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	245 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	246
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	247 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	248 NTO_PlayAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	250 int written, rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	251 int towrite;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	252 void *pcmbuffer;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	254 if (!this->enabled) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	255 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	256 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	257
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	258 towrite = this->spec.size;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	259 pcmbuffer = pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	261 /* Write the audio data, checking for EAGAIN (buffer full) and underrun */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	262 do {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	263 written = snd_pcm_plugin_write(audio_handle, pcm_buf, towrite);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	264 if (written != towrite) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	265 if ((errno == EAGAIN) \|\| (errno == EWOULDBLOCK)) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	266 /* Let a little CPU time go by and try to write again */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	267 SDL_Delay(1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	268 /* if we wrote some data */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	269 towrite -= written;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	270 pcmbuffer += written * this->spec.channels;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	271 continue;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	272 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	273 if ((errno == EINVAL) \|\| (errno == EIO)) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	274 SDL_memset(&cstatus, 0, sizeof(cstatus));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	275 cstatus.channel = SND_PCM_CHANNEL_PLAYBACK;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	276 if ((rval =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	277 snd_pcm_plugin_status(audio_handle, &cstatus)) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	278 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	279 ("NTO_PlayAudio(): snd_pcm_plugin_status failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	280 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	281 return;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	282 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	283 if ((cstatus.status == SND_PCM_STATUS_UNDERRUN)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	284 \|\| (cstatus.status == SND_PCM_STATUS_READY)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	285 if ((rval =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	286 snd_pcm_plugin_prepare(audio_handle,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	287 SND_PCM_CHANNEL_PLAYBACK))
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	288 < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	289 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	290 ("NTO_PlayAudio(): snd_pcm_plugin_prepare failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	291 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	292 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	293 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	294 }
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	295 continue;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	296 } else {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	297 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	298 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	299 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	300 } else {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	301 /* we wrote all remaining data */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	302 towrite -= written;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	303 pcmbuffer += written * this->spec.channels;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	304 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	305 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	306 while ((towrite > 0) && (this->enabled));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	308 /* If we couldn't write, assume fatal error for now */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	309 if (towrite != 0) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	310 this->enabled = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	311 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	312
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	313 return;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	315
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	316 static Uint8 *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	317 NTO_GetAudioBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	319 return pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	320 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	322 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	323 NTO_CloseAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	325 int rval;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	326
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	327 this->enabled = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	328
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	329 if (audio_handle != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	330 if ((rval =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	331 snd_pcm_plugin_flush(audio_handle,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	332 SND_PCM_CHANNEL_PLAYBACK)) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	333 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	334 ("NTO_CloseAudio(): snd_pcm_plugin_flush failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	335 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	336 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	337 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	338 if ((rval = snd_pcm_close(audio_handle)) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	339 SDL_SetError("NTO_CloseAudio(): snd_pcm_close failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	340 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	341 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	342 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	343 audio_handle = NULL;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	344 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	345 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	346
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	347 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	348 NTO_OpenAudio(_THIS, SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	349 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	350 int rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	351 int format;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	352 SDL_AudioFormat test_format;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	353 int found;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	354
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	355 audio_handle = NULL;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	356 this->enabled = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	357
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	358 if (pcm_buf != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	359 SDL_FreeAudioMem(pcm_buf);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	360 pcm_buf = NULL;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	361 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	362
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	363 /* initialize channel transfer parameters to default */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	364 NTO_InitAudioParams(&cparams);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	366 /* Open the audio device */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	367 rval =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	368 snd_pcm_open_preferred(&audio_handle, &cardno, &deviceno, OPEN_FLAGS);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	369 if (rval < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	370 SDL_SetError("NTO_OpenAudio(): snd_pcm_open failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	371 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	372 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	373 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	374
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	375 if (!NTO_CheckBuggyCards(this, QSA_MMAP_WORKAROUND)) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	376 /* enable count status parameter */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	377 if ((rval =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	378 snd_pcm_plugin_set_disable(audio_handle,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	379 PLUGIN_DISABLE_MMAP)) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	380 SDL_SetError("snd_pcm_plugin_set_disable failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	381 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	382 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	383 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	384 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	385
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	386 /* Try for a closest match on audio format */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	387 format = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	388 /* can't use format as SND_PCM_SFMT_U8 = 0 in nto */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	389 found = 0;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	390
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	391 for (test_format = SDL_FirstAudioFormat(spec->format); !found;) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	392 /* if match found set format to equivalent ALSA format */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	393 switch (test_format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	394 case AUDIO_U8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	395 format = SND_PCM_SFMT_U8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	396 found = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	397 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	398 case AUDIO_S8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	399 format = SND_PCM_SFMT_S8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	400 found = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	401 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	402 case AUDIO_S16LSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	403 format = SND_PCM_SFMT_S16_LE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	404 found = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	405 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	406 case AUDIO_S16MSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	407 format = SND_PCM_SFMT_S16_BE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	408 found = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	409 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	410 case AUDIO_U16LSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	411 format = SND_PCM_SFMT_U16_LE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	412 found = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	413 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	414 case AUDIO_U16MSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	415 format = SND_PCM_SFMT_U16_BE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	416 found = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	417 break;
2007 cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	418 case AUDIO_S32LSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	419 format = SND_PCM_SFMT_S32_LE;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	420 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	421 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	422 case AUDIO_S32MSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	423 format = SND_PCM_SFMT_S32_BE;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	424 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	425 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	426 case AUDIO_F32LSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	427 format = SND_PCM_SFMT_FLOAT_LE;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	428 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	429 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	430 case AUDIO_F32MSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	431 format = SND_PCM_SFMT_FLOAT_BE;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	432 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	433 break;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	434 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	435 break;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	436 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	437
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	438 if (!found) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	439 test_format = SDL_NextAudioFormat();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	440 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	441 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	443 /* assumes test_format not 0 on success */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	444 if (test_format == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	445 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	446 ("NTO_OpenAudio(): Couldn't find any hardware audio formats");
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	447 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	448 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	449
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	450 spec->format = test_format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	451
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	452 /* Set the audio format */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	453 cparams.format.format = format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	454
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	455 /* Set mono or stereo audio (currently only two channels supported) */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	456 cparams.format.voices = spec->channels;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	457
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	458 /* Set rate */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	459 cparams.format.rate = spec->freq;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	460
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	461 /* Setup the transfer parameters according to cparams */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	462 rval = snd_pcm_plugin_params(audio_handle, &cparams);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	463 if (rval < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	464 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	465 ("NTO_OpenAudio(): snd_pcm_channel_params failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	466 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	467 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	468 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	469
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	470 /* Make sure channel is setup right one last time */
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	471 SDL_memset(&csetup, 0x00, sizeof(csetup));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	472 csetup.channel = SND_PCM_CHANNEL_PLAYBACK;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	473 if (snd_pcm_plugin_setup(audio_handle, &csetup) < 0) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	474 SDL_SetError("NTO_OpenAudio(): Unable to setup playback channel\n");
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	475 return -1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	476 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	477
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	478
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	479 /* Calculate the final parameters for this audio specification */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	480 SDL_CalculateAudioSpec(spec);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	481
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	482 pcm_len = spec->size;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	483
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	484 if (pcm_len == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	485 pcm_len =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	486 csetup.buf.block.frag_size * spec->channels *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	487 (snd_pcm_format_width(format) / 8);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	488 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	489
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	490 /* Allocate memory to the audio buffer and initialize with silence (Note that
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	491 buffer size must be a multiple of fragment size, so find closest multiple)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	492 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	493 pcm_buf = (Uint8 *) SDL_AllocAudioMem(pcm_len);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	494 if (pcm_buf == NULL) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	495 SDL_SetError("NTO_OpenAudio(): pcm buffer allocation failed\n");
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	496 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	497 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	498 SDL_memset(pcm_buf, spec->silence, pcm_len);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	499
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	500 /* get the file descriptor */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	501 if ((audio_fd =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	502 snd_pcm_file_descriptor(audio_handle,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	503 SND_PCM_CHANNEL_PLAYBACK)) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	504 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	505 ("NTO_OpenAudio(): snd_pcm_file_descriptor failed with error code: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	506 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	507 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	508 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	509
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	510 /* Trigger audio playback */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	511 rval = snd_pcm_plugin_prepare(audio_handle, SND_PCM_CHANNEL_PLAYBACK);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	512 if (rval < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	513 SDL_SetError("snd_pcm_plugin_prepare failed: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	514 snd_strerror(rval));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	515 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	516 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	517
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	518 this->enabled = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	519
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	520 /* Get the parent process id (we're the parent of the audio thread) */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	521 parent = getpid();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	522
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	523 /* We're really ready to rock and roll. :-) */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	524 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	525 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	526
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	527 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/nto/SDL_nto_audio.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device