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

annotate src/audio/nto/SDL_nto_audio.c @ 783:13cab9289513

*** empty log message ***

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 13 Jan 2004 15:14:27 +0000
parents	b8d311d90021
children	3692456e7b0f

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 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	22
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23 #include <stdlib.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 #include <stdio.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 #include <string.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #include <errno.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 #include <unistd.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #include <fcntl.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 #include <signal.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #include <sys/types.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 #include <sys/time.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32 #include <sched.h>
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	33 #include <sys/select.h>
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	34 #include <sys/neutrino.h>
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 #include <sys/asoundlib.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 #include "SDL_audio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38 #include "SDL_error.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 #include "SDL_audiomem.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 #include "SDL_audio_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 #include "SDL_timer.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42 #include "SDL_nto_audio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44 /* 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	45 #define DRIVER_NAME "qsa-nto"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 /* default channel communication parameters */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 #define DEFAULT_CPARAMS_RATE 22050
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 #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	50 /* 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	51 #define DEFAULT_CPARAMS_FRAG_SIZE 4096
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 #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	53 #define DEFAULT_CPARAMS_FRAGS_MAX 1
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 /* 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	56 #define OPEN_FLAGS SND_PCM_OPEN_PLAYBACK
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	58 #define QSA_NO_WORKAROUNDS 0x00000000
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	59 #define QSA_MMAP_WORKAROUND 0x00000001
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	60
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	61 struct BuggyCards
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 char* cardname;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	64 unsigned long bugtype;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	65 };
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	66
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	67 #define QSA_WA_CARDS 3
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	68
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	69 struct BuggyCards buggycards[QSA_WA_CARDS]=
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 {"Sound Blaster Live!", QSA_MMAP_WORKAROUND},
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	72 {"Vortex 8820", QSA_MMAP_WORKAROUND},
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	73 {"Vortex 8830", QSA_MMAP_WORKAROUND},
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	74 };
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	75
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 /* Audio driver functions */
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	77 static void NTO_ThreadInit(_THIS);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	78 static int NTO_OpenAudio(_THIS, SDL_AudioSpec* spec);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 static void NTO_WaitAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80 static void NTO_PlayAudio(_THIS);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	81 static Uint8* NTO_GetAudioBuf(_THIS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	82 static void NTO_CloseAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	83
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	84 /* card names check to apply the workarounds */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	85 static int NTO_CheckBuggyCards(_THIS, unsigned long checkfor)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	86 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	87 char scardname[33];
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	88 int it;
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 if (snd_card_get_name(cardno, scardname, 32)<0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	91 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	92 return 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	93 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	94
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	95 for (it=0; it<QSA_WA_CARDS; it++)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	96 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	97 if (strcmp(buggycards[it].cardname, scardname)==0)
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 if (buggycards[it].bugtype==checkfor)
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 return 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	102 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	103 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	104 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	105
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	106 return 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	107 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	108
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	109 static void NTO_ThreadInit(_THIS)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	110 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	111 int status;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	112 struct sched_param param;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	113
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	114 /* increasing default 10 priority to 25 to avoid jerky sound */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	115 status=SchedGet(0, 0, &param);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	116 param.sched_priority=param.sched_curpriority+15;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	117 status=SchedSet(0, 0, SCHED_NOCHANGE, &param);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	118 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	120 /* PCM transfer channel parameters initialize function */
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	121 static void NTO_InitAudioParams(snd_pcm_channel_params_t* cpars)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	122 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	123 memset(cpars, 0, sizeof(snd_pcm_channel_params_t));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	124
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	125 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	126 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	127 cpars->start_mode = SND_PCM_START_DATA;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	128 cpars->stop_mode = SND_PCM_STOP_STOP;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	129 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	130 cpars->format.interleave = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	131 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	132 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	133 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	134 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	135 cpars->buf.block.frags_max = DEFAULT_CPARAMS_FRAGS_MAX;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	137
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	138 static int NTO_AudioAvailable(void)
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	139 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	140 /* See if we can open a nonblocking channel.
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	141 Return value '1' means we can.
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	142 Return value '0' means we cannot. */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	144 int available;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	145 int rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	146 snd_pcm_t* handle;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	148 available = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	149 handle = NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	151 rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	153 if (rval >= 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	154 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	155 available = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	156
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	157 if ((rval = snd_pcm_close(handle)) < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	158 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	159 SDL_SetError("NTO_AudioAvailable(): snd_pcm_close failed: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	160 available = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	161 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	162 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	163 else
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	164 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	165 SDL_SetError("NTO_AudioAvailable(): there are no available audio devices.\n");
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	166 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	167
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	168 return (available);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	170
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	171 static void NTO_DeleteAudioDevice(SDL_AudioDevice *device)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	172 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	173 if ((device)&&(device->hidden))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	174 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	175 free(device->hidden);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	176 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	177 if (device)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	178 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	179 free(device);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	180 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	181 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	183 static SDL_AudioDevice* NTO_CreateAudioDevice(int devindex)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	185 SDL_AudioDevice *this;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	186
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	187 /* Initialize all variables that we clean on shutdown */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	188 this = (SDL_AudioDevice *)malloc(sizeof(SDL_AudioDevice));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	189 if (this)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	190 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	191 memset(this, 0, sizeof(SDL_AudioDevice));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	192 this->hidden = (struct SDL_PrivateAudioData *)malloc(sizeof(struct SDL_PrivateAudioData));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	193 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	194 if ((this == NULL) \|\| (this->hidden == NULL))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	195 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	196 SDL_OutOfMemory();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	197 if (this)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	198 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	199 free(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200 }
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	201 return (0);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	202 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	203 memset(this->hidden, 0, sizeof(struct SDL_PrivateAudioData));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	204 audio_handle = NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	205
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	206 /* Set the function pointers */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	207 this->ThreadInit = NTO_ThreadInit;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	208 this->OpenAudio = NTO_OpenAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	209 this->WaitAudio = NTO_WaitAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	210 this->PlayAudio = NTO_PlayAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	211 this->GetAudioBuf = NTO_GetAudioBuf;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	212 this->CloseAudio = NTO_CloseAudio;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	213
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	214 this->free = NTO_DeleteAudioDevice;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	215
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	216 return this;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	217 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	218
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	219 AudioBootStrap QNXNTOAUDIO_bootstrap =
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	220 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	221 DRIVER_NAME, "QNX6 QSA-NTO Audio",
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	222 NTO_AudioAvailable,
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	223 NTO_CreateAudioDevice
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	225
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226 /* This function waits until it is possible to write a full sound buffer */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 static void NTO_WaitAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	229 fd_set wfds;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	230 int selectret;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	231
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	232 FD_ZERO(&wfds);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	233 FD_SET(audio_fd, &wfds);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	234
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	235 do {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	236 selectret=select(audio_fd + 1, NULL, &wfds, NULL, NULL);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	237 switch (selectret)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	238 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	239 case -1:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	240 case 0: SDL_SetError("NTO_WaitAudio(): select() failed: %s\n", strerror(errno));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	241 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	242 default: if (FD_ISSET(audio_fd, &wfds))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	243 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	244 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	245 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	246 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	247 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	248 } while(1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	250
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251 static void NTO_PlayAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	252 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	253 int written, rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	254 int towrite;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	255 void* pcmbuffer;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	256
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	257 if (!this->enabled)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	258 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	259 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	260 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	261
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	262 towrite = this->spec.size;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	263 pcmbuffer = pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	264
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	265 /* 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	266 do {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	267 written = snd_pcm_plugin_write(audio_handle, pcm_buf, towrite);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	268 if (written != towrite)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	269 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	270 if ((errno == EAGAIN) \|\| (errno == EWOULDBLOCK))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	271 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	272 /* 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	273 SDL_Delay(1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	274 /* if we wrote some data */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	275 towrite -= written;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	276 pcmbuffer += written * this->spec.channels;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	277 continue;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	278 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	279 else
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	280 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	281 if ((errno == EINVAL) \|\| (errno == EIO))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	282 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	283 memset(&cstatus, 0, sizeof(cstatus));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	284 cstatus.channel = SND_PCM_CHANNEL_PLAYBACK;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	285 if ((rval = snd_pcm_plugin_status(audio_handle, &cstatus)) < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	286 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	287 SDL_SetError("NTO_PlayAudio(): snd_pcm_plugin_status failed: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	288 return;
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 if ((cstatus.status == SND_PCM_STATUS_UNDERRUN) \|\| (cstatus.status == SND_PCM_STATUS_READY))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	291 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	292 if ((rval = snd_pcm_plugin_prepare(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	293 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	294 SDL_SetError("NTO_PlayAudio(): snd_pcm_plugin_prepare failed: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	295 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	296 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	297 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	298 continue;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	299 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	300 else
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	301 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	302 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	303 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	304 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	305 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	306 else
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	307 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	308 /* we wrote all remaining data */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	309 towrite -= written;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	310 pcmbuffer += written * this->spec.channels;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	311 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	312 } while ((towrite > 0) && (this->enabled));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	313
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	314 /* If we couldn't write, assume fatal error for now */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	315 if (towrite != 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	316 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	317 this->enabled = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	318 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	319
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	320 return;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	323 static Uint8* NTO_GetAudioBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	325 return pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	326 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	327
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	328 static void NTO_CloseAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	330 int rval;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	331
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	332 this->enabled = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	334 if (audio_handle != NULL)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	335 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	336 if ((rval = snd_pcm_plugin_flush(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	337 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	338 SDL_SetError("NTO_CloseAudio(): snd_pcm_plugin_flush failed: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	339 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	340 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	341 if ((rval = snd_pcm_close(audio_handle)) < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	342 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	343 SDL_SetError("NTO_CloseAudio(): snd_pcm_close failed: %s\n",snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	344 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	345 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	346 audio_handle = NULL;
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 }
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 static int NTO_OpenAudio(_THIS, SDL_AudioSpec* spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	351 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	352 int rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	353 int format;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	354 Uint16 test_format;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	355 int found;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	356
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	357 audio_handle = NULL;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	358 this->enabled = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	359
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	360 if (pcm_buf != NULL)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	361 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	362 SDL_FreeAudioMem(pcm_buf);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	363 pcm_buf = NULL;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	364 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	366 /* 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	367 NTO_InitAudioParams(&cparams);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	368
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	369 /* Open the audio device */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	370 rval = snd_pcm_open_preferred(&audio_handle, &cardno, &deviceno, OPEN_FLAGS);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	371 if (rval < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	372 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	373 SDL_SetError("NTO_OpenAudio(): snd_pcm_open failed: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	374 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	375 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	376
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	377 if (!NTO_CheckBuggyCards(this, QSA_MMAP_WORKAROUND))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	378 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	379 /* enable count status parameter */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	380 if ((rval = snd_pcm_plugin_set_disable(audio_handle, PLUGIN_DISABLE_MMAP)) < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	381 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	382 SDL_SetError("snd_pcm_plugin_set_disable failed: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	383 return (-1);
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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	386
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	387 /* 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	388 format = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	389 /* 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	390 found = 0;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	391
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	392 for (test_format=SDL_FirstAudioFormat(spec->format); !found ;)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	393 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	394 /* if match found set format to equivalent ALSA format */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	395 switch (test_format)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	396 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	397 case AUDIO_U8:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	398 format = SND_PCM_SFMT_U8;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	399 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	400 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	401 case AUDIO_S8:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	402 format = SND_PCM_SFMT_S8;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	403 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	404 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	405 case AUDIO_S16LSB:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	406 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	407 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	408 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	409 case AUDIO_S16MSB:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	410 format = SND_PCM_SFMT_S16_BE;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	411 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	412 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	413 case AUDIO_U16LSB:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	414 format = SND_PCM_SFMT_U16_LE;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	415 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	416 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	417 case AUDIO_U16MSB:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	418 format = SND_PCM_SFMT_U16_BE;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	419 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	420 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	421 default:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	422 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	423 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	424
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	425 if (!found)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	426 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	427 test_format = SDL_NextAudioFormat();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	428 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	429 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	430
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	431 /* assumes test_format not 0 on success */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	432 if (test_format == 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	433 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	434 SDL_SetError("NTO_OpenAudio(): Couldn't find any hardware audio formats");
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	435 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	436 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	437
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	438 spec->format = test_format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	439
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	440 /* Set the audio format */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	441 cparams.format.format = format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	443 /* Set mono or stereo audio (currently only two channels supported) */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	444 cparams.format.voices = spec->channels;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	445
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	446 /* Set rate */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	447 cparams.format.rate = spec->freq;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	448
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	449 /* Setup the transfer parameters according to cparams */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	450 rval = snd_pcm_plugin_params(audio_handle, &cparams);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	451 if (rval < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	452 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	453 SDL_SetError("NTO_OpenAudio(): snd_pcm_channel_params failed: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	454 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	455 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	456
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	457 /* Make sure channel is setup right one last time */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	458 memset(&csetup, 0x00, sizeof(csetup));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	459 csetup.channel = SND_PCM_CHANNEL_PLAYBACK;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	460 if (snd_pcm_plugin_setup(audio_handle, &csetup) < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	461 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	462 SDL_SetError("NTO_OpenAudio(): Unable to setup playback channel\n");
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	463 return -1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	464 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	465
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	466
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	467 /* Calculate the final parameters for this audio specification */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	468 SDL_CalculateAudioSpec(spec);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	469
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	470 pcm_len = spec->size;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	471
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	472 if (pcm_len==0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	473 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	474 pcm_len = csetup.buf.block.frag_size * spec->channels * (snd_pcm_format_width(format)/8);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	475 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	476
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	477 /* Allocate memory to the audio buffer and initialize with silence (Note that
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	478 buffer size must be a multiple of fragment size, so find closest multiple)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	479 */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	480 pcm_buf = (Uint8*)SDL_AllocAudioMem(pcm_len);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	481 if (pcm_buf == NULL)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	482 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	483 SDL_SetError("NTO_OpenAudio(): pcm buffer allocation failed\n");
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	484 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	485 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	486 memset(pcm_buf, spec->silence, pcm_len);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	487
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	488 /* get the file descriptor */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	489 if ((audio_fd = snd_pcm_file_descriptor(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	490 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	491 SDL_SetError("NTO_OpenAudio(): snd_pcm_file_descriptor failed with error code: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	492 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	493 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	494
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	495 /* Trigger audio playback */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	496 rval = snd_pcm_plugin_prepare(audio_handle, SND_PCM_CHANNEL_PLAYBACK);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	497 if (rval < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	498 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	499 SDL_SetError("snd_pcm_plugin_prepare failed: %s\n", snd_strerror(rval));
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	500 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	501 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	502
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	503 this->enabled = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	504
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	505 /* Get the parent process id (we're the parent of the audio thread) */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	506 parent = getpid();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	507
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	508 /* We're really ready to rock and roll. :-) */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	509 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 }

Mercurial > sdl-ios-xcode

annotate src/audio/nto/SDL_nto_audio.c @ 783:13cab9289513