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

annotate src/audio/nto/SDL_nto_audio.c @ 4135:cd98d1dc385c SDL-1.2

Damien Carbery fixed bug #542 In SDL 1.2.13 sdl.m4 the AM_PATH_SDL function looks for sdl-config. It sets the PATH: PATH="$prefix/bin:$prefix/usr/bin:$PATH" but does not save the current PATH or restore the current PATH at the end. This breaks the build on Solaris because we have GNU tools in another dir (listed at the top of PATH) but non-GNU tools with the same names in $prefix/bin. Later configure tests finds the non-GNU tools and quits in error

author	Sam Lantinga <slouken@libsdl.org>
date	Thu, 24 Jan 2008 15:50:20 +0000
parents	d910939febfa
children	782fd950bd46 c121d94672cb a1b03ba2fcd0

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 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	60 char* cardname;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	61 unsigned long bugtype;
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
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	66 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	67 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	68 {"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	69 {"Vortex 8820", QSA_MMAP_WORKAROUND},
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	70 {"Vortex 8830", QSA_MMAP_WORKAROUND},
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	71 };
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	72
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73 /* Audio driver functions */
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	74 static void NTO_ThreadInit(_THIS);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	75 static int NTO_OpenAudio(_THIS, SDL_AudioSpec* spec);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 static void NTO_WaitAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	77 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	78 static Uint8* NTO_GetAudioBuf(_THIS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 static void NTO_CloseAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	81 /* 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	82 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	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;
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 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	88 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	89 return 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	90 }
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 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	93 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	94 if (SDL_strcmp(buggycards[it].cardname, scardname)==0)
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	95 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	96 if (buggycards[it].bugtype==checkfor)
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 return 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	99 }
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 }
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 return 0;
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 static void NTO_ThreadInit(_THIS)
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 int status;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	109 struct sched_param param;
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 /* 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	112 status=SchedGet(0, 0, &param);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	113 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	114 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	115 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117 /* 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	118 static void NTO_InitAudioParams(snd_pcm_channel_params_t* cpars)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	120 SDL_memset(cpars, 0, sizeof(snd_pcm_channel_params_t));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	121
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	122 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	123 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	124 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	125 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	126 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	127 cpars->format.interleave = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	128 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	129 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	130 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	131 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	132 cpars->buf.block.frags_max = DEFAULT_CPARAMS_FRAGS_MAX;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	133 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	134
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	135 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	136 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	137 /* 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	138 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	139 Return value '0' means we cannot. */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	141 int available;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	142 int rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	143 snd_pcm_t* handle;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	145 available = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	146 handle = NULL;
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 rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	150 if (rval >= 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	151 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	152 available = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	153
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	154 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	155 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	156 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	157 available = 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 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	160 else
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 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	163 }
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 return (available);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	166 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	168 static void NTO_DeleteAudioDevice(SDL_AudioDevice *device)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	170 if ((device)&&(device->hidden))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	171 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	172 SDL_free(device->hidden);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	173 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	174 if (device)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	175 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	176 SDL_free(device);
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	177 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	178 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	180 static SDL_AudioDevice* NTO_CreateAudioDevice(int devindex)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	181 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	182 SDL_AudioDevice *this;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	183
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	184 /* Initialize all variables that we clean on shutdown */
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	185 this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	186 if (this)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	187 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	188 SDL_memset(this, 0, sizeof(SDL_AudioDevice));
3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	189 this->hidden = (struct SDL_PrivateAudioData *)SDL_malloc(sizeof(struct SDL_PrivateAudioData));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	190 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	191 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	192 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	193 SDL_OutOfMemory();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	194 if (this)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	195 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	196 SDL_free(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197 }
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	198 return (0);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	199 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	200 SDL_memset(this->hidden, 0, sizeof(struct SDL_PrivateAudioData));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	201 audio_handle = NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	202
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	203 /* Set the function pointers */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	204 this->ThreadInit = NTO_ThreadInit;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	205 this->OpenAudio = NTO_OpenAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	206 this->WaitAudio = NTO_WaitAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	207 this->PlayAudio = NTO_PlayAudio;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	208 this->GetAudioBuf = NTO_GetAudioBuf;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	209 this->CloseAudio = NTO_CloseAudio;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	210
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	211 this->free = NTO_DeleteAudioDevice;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	213 return this;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	214 }
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 AudioBootStrap QNXNTOAUDIO_bootstrap =
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	217 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	218 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	219 NTO_AudioAvailable,
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	220 NTO_CreateAudioDevice
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	223 /* This function waits until it is possible to write a full sound buffer */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 static void NTO_WaitAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	225 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	226 fd_set wfds;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	227 int selectret;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	228
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	229 FD_ZERO(&wfds);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	230 FD_SET(audio_fd, &wfds);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	232 do {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	233 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	234 switch (selectret)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	235 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	236 case -1:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	237 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	238 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	239 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	240 {
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 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	243 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	244 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	245 } while(1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	246 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	247
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	248 static void NTO_PlayAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	250 int written, rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	251 int towrite;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	252 void* pcmbuffer;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	254 if (!this->enabled)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	255 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	256 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	257 }
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 towrite = this->spec.size;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	260 pcmbuffer = pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	261
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	262 /* 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	263 do {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	264 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	265 if (written != towrite)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	266 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	267 if ((errno == EAGAIN) \|\| (errno == EWOULDBLOCK))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	268 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	269 /* 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	270 SDL_Delay(1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	271 /* if we wrote some data */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	272 towrite -= written;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	273 pcmbuffer += written * this->spec.channels;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	274 continue;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	275 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	276 else
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	277 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	278 if ((errno == EINVAL) \|\| (errno == EIO))
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	279 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	280 SDL_memset(&cstatus, 0, sizeof(cstatus));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	281 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	282 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	283 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	284 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	285 return;
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 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	288 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	289 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	290 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	291 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	292 return;
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 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	295 continue;
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 else
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	298 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	299 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	300 }
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 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	303 else
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 /* we wrote all remaining data */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	306 towrite -= written;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	307 pcmbuffer += written * this->spec.channels;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	308 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	309 } while ((towrite > 0) && (this->enabled));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	310
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	311 /* 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	312 if (towrite != 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	313 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	314 this->enabled = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	315 }
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 return;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	320 static Uint8* NTO_GetAudioBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	322 return pcm_buf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	325 static void NTO_CloseAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	326 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	327 int rval;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	328
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	329 this->enabled = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	330
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	331 if (audio_handle != NULL)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	332 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	333 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	334 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	335 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	336 return;
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 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	339 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	340 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	341 return;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	342 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	343 audio_handle = NULL;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	344 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	345 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	346
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	347 static int NTO_OpenAudio(_THIS, SDL_AudioSpec* spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	348 {
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	349 int rval;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	350 int format;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	351 Uint16 test_format;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	352 int found;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	353
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	354 audio_handle = NULL;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	355 this->enabled = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	356
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	357 if (pcm_buf != NULL)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	358 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	359 SDL_FreeAudioMem(pcm_buf);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	360 pcm_buf = NULL;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	361 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	362
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	363 /* initialize channel transfer parameters to default */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	364 NTO_InitAudioParams(&cparams);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	366 /* Open the audio device */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	367 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	368 if (rval < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	369 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	370 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	371 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	372 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	373
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	374 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	375 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	376 /* enable count status parameter */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	377 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	378 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	379 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	380 return (-1);
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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	383
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	384 /* 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	385 format = 0;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	386 /* 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	387 found = 0;
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	388
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	389 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	390 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	391 /* 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	392 switch (test_format)
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 case AUDIO_U8:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	395 format = SND_PCM_SFMT_U8;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	396 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	397 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	398 case AUDIO_S8:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	399 format = SND_PCM_SFMT_S8;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	400 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	401 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	402 case AUDIO_S16LSB:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	403 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	404 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	405 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	406 case AUDIO_S16MSB:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	407 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	408 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	409 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	410 case AUDIO_U16LSB:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	411 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	412 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	413 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	414 case AUDIO_U16MSB:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	415 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	416 found = 1;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	417 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	418 default:
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	419 break;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	420 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	421
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	422 if (!found)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	423 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	424 test_format = SDL_NextAudioFormat();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	425 }
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	426 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	427
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	428 /* 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	429 if (test_format == 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	430 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	431 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	432 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	433 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	434
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	435 spec->format = test_format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	436
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	437 /* Set the audio format */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	438 cparams.format.format = 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 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	441 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	442
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	443 /* Set rate */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	444 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	445
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	446 /* 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	447 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	448 if (rval < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	449 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	450 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	451 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	452 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	453
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	454 /* Make sure channel is setup right one last time */
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	455 SDL_memset(&csetup, 0x00, sizeof(csetup));
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	456 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	457 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	458 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	459 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	460 return -1;
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
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	463
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	464 /* 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	465 SDL_CalculateAudioSpec(spec);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	466
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	467 pcm_len = spec->size;
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	468
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	469 if (pcm_len==0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	470 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	471 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	472 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	473
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	474 /* 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	475 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	476 */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	477 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	478 if (pcm_buf == NULL)
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 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	481 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	482 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	483 SDL_memset(pcm_buf, spec->silence, pcm_len);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	484
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	485 /* get the file descriptor */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	486 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	487 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	488 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	489 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	490 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	491
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	492 /* Trigger audio playback */
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	493 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	494 if (rval < 0)
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	495 {
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	496 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	497 return (-1);
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	498 }
418 337f3ec4c385 Updated the QNX audio code for QNX 6.2 (thanks Travis!) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	499
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	500 this->enabled = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	501
718 cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	502 /* 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	503 parent = getpid();
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	504
cbc0f7fabd1c Date: Sat, 13 Sep 2003 15:50:43 +0300 Sam Lantinga <slouken@libsdl.org> parents: 663 diff changeset	505 /* 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	506 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	507 }

Mercurial > sdl-ios-xcode

annotate src/audio/nto/SDL_nto_audio.c @ 4135:cd98d1dc385c SDL-1.2