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

annotate src/audio/nto/SDL_nto_audio.c @ 2938:2929ed239d2a

Adjusted default choice of audio driver. If a driver can definitely see available devices, it is chosen. Otherwise, we'll take the first driver that initializes but saw no devices...this might be because it can't enumerate them, or there really aren't any available. This prevents the dsp driver from hogging control when there are no /dev/dsp* nodes (for example, on a Linux box with ALSA and no OSS emulation).

author	Ryan C. Gordon <icculus@icculus.org>
date	Thu, 01 Jan 2009 07:54:58 +0000
parents	99210400e8b9
children	1e431c2631ee

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
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	3 Copyright (C) 1997-2009 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
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	72
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	73 static inline void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	74 NTO_SetError(const char *fn, int rval)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	75 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	76 SDL_SetError("NTO: %s failed: %s", fn, snd_strerror(rval));
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	77 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	78
0 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
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	87 if (snd_card_get_name(this->hidden->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 struct sched_param param;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	106 int status = SchedGet(0, 0, &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 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	110 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	111 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113 /* 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	114 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	115 NTO_InitAudioParams(snd_pcm_channel_params_t * cpars)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	117 SDL_memset(cpars, 0, sizeof(snd_pcm_channel_params_t));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	119 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	120 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	121 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	122 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	123 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	124 cpars->format.interleave = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	125 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	126 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	127 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	128 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	129 cpars->buf.block.frags_max = DEFAULT_CPARAMS_FRAGS_MAX;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	131
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	133 /* 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	134 static void
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	135 NTO_WaitDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	137 fd_set wfds;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	138 int selectret;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	139
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	140 FD_ZERO(&wfds);
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	141 FD_SET(this->hidden->audio_fd, &wfds);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	143 do {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	144 selectret =
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	145 select(this->hidden->audio_fd + 1, NULL, &wfds, NULL, NULL);
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	146 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	147 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	148 case 0:
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	149 SDL_SetError("NTO: select() failed: %s\n", strerror(errno));
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	150 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	151 default:
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	152 if (FD_ISSET(this->hidden->audio_fd, &wfds)) {
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	153 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	154 }
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 break;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	156 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2060 diff changeset	157 } while (1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	158 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	159
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	160 static void
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	161 NTO_PlayDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	163 snd_pcm_channel_status_t cstatus;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	164 int written, rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	165 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	166 void *pcmbuffer;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	168 if ((!this->enabled) \|\| (!this->hidden)) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	169 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	170 }
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	171
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	172 towrite = this->spec.size;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	173 pcmbuffer = this->hidden->pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	175 /* 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	176 do {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	177 written = snd_pcm_plugin_write(this->hidden->audio_handle,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	178 pcmbuffer, 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	179 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	180 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	181 /* 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	182 SDL_Delay(1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	183 /* if we wrote some data */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	184 towrite -= written;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	185 pcmbuffer += written * this->spec.channels;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	186 continue;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	187 } else if ((errno == EINVAL) \|\| (errno == EIO)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	188 SDL_memset(&cstatus, 0, sizeof(cstatus));
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	189 cstatus.channel = SND_PCM_CHANNEL_PLAYBACK;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	190 rval = snd_pcm_plugin_status(this->hidden->audio_handle,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	191 &cstatus);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	192 if (rval < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	193 NTO_SetError("snd_pcm_plugin_status", rval);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	194 return;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	195 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	196
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	197 if ((cstatus.status == SND_PCM_STATUS_UNDERRUN) \|\|
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	198 (cstatus.status == SND_PCM_STATUS_READY)) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	199 rval = snd_pcm_plugin_prepare(this->hidden->audio_handle,
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	200 SND_PCM_CHANNEL_PLAYBACK);
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	201 if (rval < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	202 NTO_SetError("snd_pcm_plugin_prepare", rval);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	203 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	204 }
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	205 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	206 continue;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	207 } else {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	208 return;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	209 }
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	210 } else {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	211 /* we wrote all remaining data */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	212 towrite -= written;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	213 pcmbuffer += written * this->spec.channels;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	214 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2060 diff changeset	215 } while ((towrite > 0) && (this->enabled));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	217 /* 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	218 if (towrite != 0) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	219 this->enabled = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	220 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222
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	223 static Uint8 *
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	224 NTO_GetDeviceBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	225 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	226 return this->hidden->pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228
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	229 static void
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	230 NTO_CloseDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	232 if (this->hidden != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	233 if (this->hidden->audio_handle != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	234 snd_pcm_plugin_flush(this->hidden->audio_handle,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	235 SND_PCM_CHANNEL_PLAYBACK);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	236 snd_pcm_close(this->hidden->audio_handle);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	237 this->hidden->audio_handle = NULL;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	238 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	239 if (this->hidden->pcm_buf != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	240 SDL_FreeAudioMem(this->hidden->pcm_buf);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	241 this->hidden->pcm_buf = NULL;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	242 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	243 SDL_free(this->hidden);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	244 this->hidden = NULL;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	245 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	246 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	247
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	248 static int
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	249 NTO_OpenDevice(_THIS, const char *devname, int iscapture)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	250 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	251 int rval = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	252 int format = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	253 SDL_AudioFormat test_format = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	254 int found = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	255 snd_pcm_channel_setup_t csetup;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	256 snd_pcm_channel_params_t cparams;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	257
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	258 /* Initialize all variables that we clean on shutdown */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	259 this->hidden = (struct SDL_PrivateAudioData *)
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	260 SDL_malloc((sizeof *this->hidden));
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	261 if (this->hidden == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	262 SDL_OutOfMemory();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	263 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	264 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	265 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	266
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	267 /* 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	268 NTO_InitAudioParams(&cparams);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	269
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	270 /* Open the audio device */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	271 rval = snd_pcm_open_preferred(&this->hidden->audio_handle,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	272 &this->hidden->cardno,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	273 &this->hidden->deviceno, OPEN_FLAGS);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	274
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	275 if (rval < 0) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	276 NTO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	277 NTO_SetError("snd_pcm_open", rval);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	278 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	279 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	280
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	281 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	282 /* enable count status parameter */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	283 rval = snd_pcm_plugin_set_disable(this->hidden->audio_handle,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	284 PLUGIN_DISABLE_MMAP);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	285 if (rval < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	286 NTO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	287 NTO_SetError("snd_pcm_plugin_set_disable", rval);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	288 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	289 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	290 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	292 /* 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	293 format = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	294 /* 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	295 found = 0;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	296
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	297 for (test_format = SDL_FirstAudioFormat(this->spec.format); !found;) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	298 /* 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	299 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	300 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	301 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	302 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	303 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	304 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	305 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	306 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	307 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	308 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	309 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	310 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	311 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	312 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	313 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	314 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	315 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	316 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	317 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	318 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	319 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	320 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	321 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	322 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	323 break;
2007 cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	324 case AUDIO_S32LSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	325 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	326 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	327 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	328 case AUDIO_S32MSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	329 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	330 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	331 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	332 case AUDIO_F32LSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	333 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	334 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	335 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	336 case AUDIO_F32MSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	337 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	338 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	339 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	340 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	341 break;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	342 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	343
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	344 if (!found) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	345 test_format = SDL_NextAudioFormat();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	346 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	347 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	348
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	349 /* 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	350 if (test_format == 0) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	351 NTO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	352 SDL_SetError("NTO: Couldn't find any hardware audio formats");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	353 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	354 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	355
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	356 this->spec.format = test_format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	357
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	358 /* Set the audio format */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	359 cparams.format.format = format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	360
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	361 /* Set mono or stereo audio (currently only two channels supported) */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	362 cparams.format.voices = this->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	363
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	364 /* Set rate */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	365 cparams.format.rate = this->spec.freq;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	366
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	367 /* Setup the transfer parameters according to cparams */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	368 rval = snd_pcm_plugin_params(this->hidden->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	369 if (rval < 0) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	370 NTO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	371 NTO_SetError("snd_pcm_channel_params", rval);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	372 return 0;
718 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
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	375 /* Make sure channel is setup right one last time */
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	376 SDL_memset(&csetup, '\0', sizeof(csetup));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	377 csetup.channel = SND_PCM_CHANNEL_PLAYBACK;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	378 if (snd_pcm_plugin_setup(this->hidden->audio_handle, &csetup) < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	379 NTO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	380 SDL_SetError("NTO: Unable to setup playback channel\n");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	381 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	382 }
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 /* Calculate the final parameters for this audio specification */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	385 SDL_CalculateAudioSpec(&this->spec);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	386
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	387 this->hidden->pcm_len = this->spec.size;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	388
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	389 if (this->hidden->pcm_len == 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	390 this->hidden->pcm_len =
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	391 csetup.buf.block.frag_size * this->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	392 (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	393 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	394
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	395 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	396 * Allocate memory to the audio buffer and initialize with silence
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	397 * (Note that buffer size must be a multiple of fragment size, so find
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	398 * 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	399 */
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	400 this->hidden->pcm_buf =
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	401 (Uint8 *) SDL_AllocAudioMem(this->hidden->pcm_len);
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	402 if (this->hidden->pcm_buf == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	403 NTO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	404 SDL_OutOfMemory();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	405 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	406 }
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	407 SDL_memset(this->hidden->pcm_buf, this->spec.silence,
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	408 this->hidden->pcm_len);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	409
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	410 /* get the file descriptor */
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	411 this->hidden->audio_fd =
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	412 snd_pcm_file_descriptor(this->hidden->audio_handle,
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	413 SND_PCM_CHANNEL_PLAYBACK);
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	414 if (this->hidden->audio_fd < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	415 NTO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	416 NTO_SetError("snd_pcm_file_descriptor", rval);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	417 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	418 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	419
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	420 /* Trigger audio playback */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	421 rval = snd_pcm_plugin_prepare(this->hidden->audio_handle,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	422 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	423 if (rval < 0) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	424 NTO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	425 NTO_SetError("snd_pcm_plugin_prepare", rval);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	426 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	427 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	428
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	429 /* We're really ready to rock and roll. :-) */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	430 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	431 }
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	432
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	433
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	434 static int
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	435 NTO_Init(SDL_AudioDriverImpl * impl)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	436 {
2938 2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2859 diff changeset	437 /* !!! FIXME: not right for device enum? */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	438 /* See if we can open a nonblocking channel. */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	439 snd_pcm_t *handle = NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	440 int rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	441 if (rval < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	442 SDL_SetError("NTO: couldn't open preferred audio device");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	443 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	444 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	445 if ((rval = snd_pcm_close(handle)) < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	446 SDL_SetError("NTO: couldn't close test audio device");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	447 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	448 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	449
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	450 /* Set the function pointers */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	451 impl->OpenDevice = NTO_OpenDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	452 impl->ThreadInit = NTO_ThreadInit;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	453 impl->WaitDevice = NTO_WaitDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	454 impl->PlayDevice = NTO_PlayDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	455 impl->GetDeviceBuf = NTO_GetDeviceBuf;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	456 impl->CloseDevice = NTO_CloseDevice;
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	457 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: add device enum! */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	458
2938 2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2859 diff changeset	459 /* !!! FIXME: device enum might make this 1. */
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2859 diff changeset	460 return 2; /* 2 == definitely has an audio device. */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	461 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	462
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	463 AudioBootStrap QNXNTOAUDIO_bootstrap = {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	464 DRIVER_NAME, "QNX6 QSA-NTO Audio", NTO_Init, 0
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	465 };
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2007 diff changeset	466
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	467 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/nto/SDL_nto_audio.c @ 2938:2929ed239d2a