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

annotate src/audio/nto/SDL_nto_audio.c @ 3846:66fb40445587 SDL-ryan-multiple-audio-device

Removed distinction between "available" and "init" in audio backends, since both had to be checked for success as a pair at the higher level and several of the Available methods were just always-succeed placeholders anyhow. Now the availability check is done in the init code, and the higher level tries all possible drivers until one manages to initialize successfully.

author	Ryan C. Gordon <icculus@icculus.org>
date	Tue, 17 Oct 2006 09:09:21 +0000
parents	7df0d3efe682
children

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
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	72
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	73 static inline void
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	74 NTO_SetError(const char *fn, int rval)
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	75 {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	76 SDL_SetError("NTO: %s failed: %s", fn, snd_strerror(rval));
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	77 }
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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;
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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);
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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 {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	144 selectret = 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	145 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	146 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	147 case 0:
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	148 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	149 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	150 default:
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	151 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	152 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	153 }
c121d94672cb SDL 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 break;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	155 }
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	156 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 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
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	161 NTO_PlayDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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;
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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 {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	177 written = snd_pcm_plugin_write(this->hidden->audio_handle,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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;
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	187 } else if ((errno == EINVAL) \|\| (errno == EIO)) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	188 SDL_memset(&cstatus, 0, sizeof (cstatus));
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	189 cstatus.channel = SND_PCM_CHANNEL_PLAYBACK;
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	190 rval = snd_pcm_plugin_status(this->hidden->audio_handle,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	191 &cstatus);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	192 if (rval < 0) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	193 NTO_SetError("snd_pcm_plugin_status", rval);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	194 return;
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	195 }
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	196
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	197 if ( (cstatus.status == SND_PCM_STATUS_UNDERRUN) \|\|
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	198 (cstatus.status == SND_PCM_STATUS_READY)) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	199 rval = snd_pcm_plugin_prepare(this->hidden->audio_handle,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	200 SND_PCM_CHANNEL_PLAYBACK);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	201 if (rval < 0) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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 }
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	206 continue;
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	207 } else {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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 }
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	215 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	216 while ((towrite > 0) && (this->enabled));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	217
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	218 /* 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	219 if (towrite != 0) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	220 this->enabled = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	221 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	223
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	224 static Uint8 *
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	225 NTO_GetDeviceBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226 {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	227 return this->hidden->pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229
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 static void
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	231 NTO_CloseDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232 {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	233 if (this->hidden != NULL) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	234 if (this->hidden->audio_handle != NULL) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	235 snd_pcm_plugin_flush(this->hidden->audio_handle,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	236 SND_PCM_CHANNEL_PLAYBACK);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	237 snd_pcm_close(this->hidden->audio_handle);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	238 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	239 }
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	240 if (this->hidden->pcm_buf != NULL) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	241 SDL_FreeAudioMem(this->hidden->pcm_buf);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	242 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	243 }
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	244 SDL_free(this->hidden);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	245 this->hidden = NULL;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	246 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	247 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	248
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	249 static int
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	250 NTO_OpenDevice(_THIS, const char *devname, int iscapture)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251 {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	252 int rval = 0;
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	253 int format = 0;
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	254 SDL_AudioFormat test_format = 0;
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	255 int found = 0;
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	256 snd_pcm_channel_setup_t csetup;
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	257 snd_pcm_channel_params_t cparams;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	258
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	259 /* Initialize all variables that we clean on shutdown */
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	260 this->hidden = (struct SDL_PrivateAudioData *)
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	261 SDL_malloc((sizeof *this->hidden));
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	262 if (this->hidden == NULL) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	263 SDL_OutOfMemory();
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	264 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	265 }
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	266 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	267
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	268 /* 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	269 NTO_InitAudioParams(&cparams);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	271 /* Open the audio device */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	272 rval = snd_pcm_open_preferred(&this->hidden->audio_handle,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	273 &this->hidden->cardno,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	274 &this->hidden->deviceno, OPEN_FLAGS);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	275
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 < 0) {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	277 NTO_CloseDevice(this);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	278 NTO_SetError("snd_pcm_open", rval);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	279 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	280 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	281
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 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	283 /* enable count status parameter */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	284 rval = snd_pcm_plugin_set_disable(this->hidden->audio_handle,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	285 PLUGIN_DISABLE_MMAP);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	286 if (rval < 0) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	287 NTO_CloseDevice(this);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	288 NTO_SetError("snd_pcm_plugin_set_disable", rval);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	289 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	290 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	291 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	292
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	293 /* 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	294 format = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	295 /* 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	296 found = 0;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	297
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	298 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	299 /* 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	300 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	301 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	302 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	303 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	304 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	305 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	306 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	307 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	308 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	309 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	310 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	311 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	312 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	313 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	314 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	315 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	316 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	317 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	318 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	319 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	320 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	321 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	322 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	323 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	324 break;
2007 cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	325 case AUDIO_S32LSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	326 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	327 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	328 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	329 case AUDIO_S32MSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	330 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	331 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	332 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	333 case AUDIO_F32LSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	334 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	335 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	336 break;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	337 case AUDIO_F32MSB:
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	338 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	339 found = 1;
cff63f857ff3 QNX6 support for int32/float32 (isn't this just ALSA?!) Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	340 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	341 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	342 break;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	343 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	344
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	345 if (!found) {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	346 test_format = SDL_NextAudioFormat();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	347 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	348 }
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 /* 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	351 if (test_format == 0) {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	352 NTO_CloseDevice(this);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	353 SDL_SetError("NTO: Couldn't find any hardware audio formats");
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	354 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	355 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	356
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	357 this->spec.format = test_format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	358
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	359 /* Set the audio format */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	360 cparams.format.format = format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	361
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	362 /* Set mono or stereo audio (currently only two channels supported) */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	363 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	364
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	365 /* Set rate */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	366 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	367
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	368 /* Setup the transfer parameters according to cparams */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	369 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	370 if (rval < 0) {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	371 NTO_CloseDevice(this);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	372 NTO_SetError("snd_pcm_channel_params", rval);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	373 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	374 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	375
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	376 /* Make sure channel is setup right one last time */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	377 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	378 csetup.channel = SND_PCM_CHANNEL_PLAYBACK;
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	379 if (snd_pcm_plugin_setup(this->hidden->audio_handle, &csetup) < 0) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	380 NTO_CloseDevice(this);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	381 SDL_SetError("NTO: Unable to setup playback channel\n");
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	382 return 0;
718 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
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	385 /* Calculate the final parameters for this audio specification */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	386 SDL_CalculateAudioSpec(&this->spec);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	387
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	388 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	389
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	390 if (this->hidden->pcm_len == 0) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	391 this->hidden->pcm_len =
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	392 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	393 (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	394 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	395
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	396 /*
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	397 * Allocate memory to the audio buffer and initialize with silence
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	398 * (Note that buffer size must be a multiple of fragment size, so find
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	399 * 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	400 */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	401 this->hidden->pcm_buf = (Uint8 *) SDL_AllocAudioMem(this->hidden->pcm_len);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	402 if (this->hidden->pcm_buf == NULL) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	403 NTO_CloseDevice(this);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	404 SDL_OutOfMemory();
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 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 }
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	407 SDL_memset(this->hidden->pcm_buf,this->spec.silence,this->hidden->pcm_len);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	408
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	409 /* get the file descriptor */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	410 this->hidden->audio_fd = snd_pcm_file_descriptor(this->hidden->audio_handle,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	411 SND_PCM_CHANNEL_PLAYBACK);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	412 if (this->hidden->audio_fd < 0) {
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	413 NTO_CloseDevice(this);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	414 NTO_SetError("snd_pcm_file_descriptor", rval);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	415 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	416 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	417
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	418 /* Trigger audio playback */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	419 rval = snd_pcm_plugin_prepare(this->hidden->audio_handle,
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	420 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	421 if (rval < 0) {
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	422 NTO_CloseDevice(this);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	423 NTO_SetError("snd_pcm_plugin_prepare", rval);
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	424 return 0;
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	425 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	426
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	427 /* We're really ready to rock and roll. :-) */
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	428 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	429 }
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	430
3831 7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	431
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	432 static int
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	433 NTO_Init(SDL_AudioDriverImpl *impl)
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	434 {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	435 /* See if we can open a nonblocking channel. */
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	436 snd_pcm_t *handle = NULL;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	437 int rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS);
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	438 if (rval < 0) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	439 SDL_SetError("NTO: couldn't open preferred audio device");
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	440 return 0;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	441 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	442 if ((rval = snd_pcm_close(handle)) < 0) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	443 SDL_SetError("NTO: couldn't close test audio device");
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	444 return 0;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	445 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	446
3831 7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	447 /* Set the function pointers */
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	448 impl->OpenDevice = NTO_OpenDevice;
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	449 impl->ThreadInit = NTO_ThreadInit;
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	450 impl->WaitDevice = NTO_WaitDevice;
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	451 impl->PlayDevice = NTO_PlayDevice;
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	452 impl->GetDeviceBuf = NTO_GetDeviceBuf;
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	453 impl->CloseDevice = NTO_CloseDevice;
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	454 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: add device enum! */
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	455
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	456 return 1;
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	457 }
7df0d3efe682 Forgot to add NTO_Init()... Ryan C. Gordon <icculus@icculus.org> parents: 3829 diff changeset	458
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	459 AudioBootStrap QNXNTOAUDIO_bootstrap = {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3831 diff changeset	460 DRIVER_NAME, "QNX6 QSA-NTO Audio", NTO_Init, 0
3829 d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	461 };
d3171647e661 Moved NTO audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	462
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 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/nto/SDL_nto_audio.c @ 3846:66fb40445587 SDL-ryan-multiple-audio-device