sdl-ios-xcode: src/audio/SDL

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

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

author	Ryan C. Gordon <icculus@icculus.org>
date	Tue, 17 Oct 2006 09:09:21 +0000
parents	ce229f6b5ce0
children

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	3 Copyright (C) 1997-2006 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
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 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
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 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: 148 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: 1379 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 /* Allow access to a raw mixing buffer */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #include "SDL.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 #include "SDL_audio_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #include "SDL_audiomem.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 #include "SDL_sysaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	31 #define _THIS SDL_AudioDevice *this
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	32
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	33 static SDL_AudioDriver current_audio;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	34 static SDL_AudioDevice *open_devices[16];
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	35
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	36 /* !!! FIXME: These are wordy and unlocalized... */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	37 #define DEFAULT_OUTPUT_DEVNAME "System audio output device"
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	38 #define DEFAULT_INPUT_DEVNAME "System audio capture device"
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	39
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	40
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	41 /*
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	42 * Not all of these will be compiled and linked in, but it's convenient
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	43 * to have a complete list here and saves yet-another block of #ifdefs...
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	44 * Please see bootstrap[], below, for the actual #ifdef mess.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	45 */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	46 extern AudioBootStrap BSD_AUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	47 extern AudioBootStrap DSP_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	48 extern AudioBootStrap DMA_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	49 extern AudioBootStrap ALSA_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	50 extern AudioBootStrap QNXNTOAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	51 extern AudioBootStrap SUNAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	52 extern AudioBootStrap DMEDIA_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	53 extern AudioBootStrap ARTS_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	54 extern AudioBootStrap ESD_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	55 extern AudioBootStrap NAS_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	56 extern AudioBootStrap DSOUND_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	57 extern AudioBootStrap WAVEOUT_bootstrap;
3833 de857f0708f5 Whoops, changed that symbol name... Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	58 extern AudioBootStrap PAUDIO_bootstrap;
3837 7c9663fb0860 BeOS audio now works in 1.3 branch. Ryan C. Gordon <icculus@icculus.org> parents: 3833 diff changeset	59 extern AudioBootStrap BEOSAUDIO_bootstrap;
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	60 extern AudioBootStrap COREAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	61 extern AudioBootStrap SNDMGR_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	62 extern AudioBootStrap MINTAUDIO_GSXB_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	63 extern AudioBootStrap MINTAUDIO_MCSN_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	64 extern AudioBootStrap MINTAUDIO_STFA_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	65 extern AudioBootStrap MINTAUDIO_XBIOS_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	66 extern AudioBootStrap MINTAUDIO_DMA8_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	67 extern AudioBootStrap DISKAUD_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	68 extern AudioBootStrap DUMMYAUD_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	69 extern AudioBootStrap DCAUD_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	70 extern AudioBootStrap MMEAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	71 extern AudioBootStrap DART_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	72
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	73
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	74 /* Available audio drivers */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 static AudioBootStrap *bootstrap[] = {
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: 1562 diff changeset	76 #if SDL_AUDIO_DRIVER_BSD
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	77 &BSD_AUDIO_bootstrap,
94 ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev Sam Lantinga <slouken@lokigames.com> parents: 68 diff changeset	78 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	79 #if SDL_AUDIO_DRIVER_OSS
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	80 &DSP_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	81 &DMA_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	82 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	83 #if SDL_AUDIO_DRIVER_ALSA
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	84 &ALSA_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	86 #if SDL_AUDIO_DRIVER_QNXNTO
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	87 &QNXNTOAUDIO_bootstrap,
663 8bedd6d61642 Date: Sat, 2 Aug 2003 16:22:51 +0300 Sam Lantinga <slouken@libsdl.org> parents: 654 diff changeset	88 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	89 #if SDL_AUDIO_DRIVER_SUNAUDIO
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	90 &SUNAUDIO_bootstrap,
148 8758b8d42cd9 Audio subsystem no longer assumes sun audio API on UNIX systems Sam Lantinga <slouken@libsdl.org> parents: 121 diff changeset	91 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	92 #if SDL_AUDIO_DRIVER_DMEDIA
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	93 &DMEDIA_bootstrap,
35 d3bc792e136d Added detection of Open Sound System on Solaris x86 Sam Lantinga <slouken@lokigames.com> parents: 21 diff changeset	94 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	95 #if SDL_AUDIO_DRIVER_ARTS
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	96 &ARTS_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	97 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	98 #if SDL_AUDIO_DRIVER_ESD
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	99 &ESD_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	100 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	101 #if SDL_AUDIO_DRIVER_NAS
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	102 &NAS_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	103 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	104 #if SDL_AUDIO_DRIVER_DSOUND
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	105 &DSOUND_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	106 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	107 #if SDL_AUDIO_DRIVER_WAVEOUT
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	108 &WAVEOUT_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109 #endif
3833 de857f0708f5 Whoops, changed that symbol name... Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	110 #if SDL_AUDIO_DRIVER_PAUDIO
de857f0708f5 Whoops, changed that symbol name... Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	111 &PAUDIO_bootstrap,
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	112 #endif
3837 7c9663fb0860 BeOS audio now works in 1.3 branch. Ryan C. Gordon <icculus@icculus.org> parents: 3833 diff changeset	113 #if SDL_AUDIO_DRIVER_BEOSAUDIO
7c9663fb0860 BeOS audio now works in 1.3 branch. Ryan C. Gordon <icculus@icculus.org> parents: 3833 diff changeset	114 &BEOSAUDIO_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	115 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	116 #if SDL_AUDIO_DRIVER_COREAUDIO
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	117 &COREAUDIO_bootstrap,
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: 808 diff changeset	118 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	119 #if SDL_AUDIO_DRIVER_SNDMGR
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	120 &SNDMGR_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	121 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	122 #if SDL_AUDIO_DRIVER_MINT
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	123 &MINTAUDIO_GSXB_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	124 &MINTAUDIO_MCSN_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	125 &MINTAUDIO_STFA_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	126 &MINTAUDIO_XBIOS_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	127 &MINTAUDIO_DMA8_bootstrap,
398 d219b0e02f5f Added Atari audio support (thanks Patrice!) Sam Lantinga <slouken@libsdl.org> parents: 322 diff changeset	128 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	129 #if SDL_AUDIO_DRIVER_DISK
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	130 &DISKAUD_bootstrap,
68 ac6645260d31 Added an audio driver that writes to disk (thanks Ryan!) Sam Lantinga <slouken@lokigames.com> parents: 38 diff changeset	131 #endif
1532 30f189cdd82b Implemented dummy audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 1487 diff changeset	132 #if SDL_AUDIO_DRIVER_DUMMY
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	133 &DUMMYAUD_bootstrap,
1532 30f189cdd82b Implemented dummy audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 1487 diff changeset	134 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	135 #if SDL_AUDIO_DRIVER_DC
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	136 &DCAUD_bootstrap,
509 dad72daf44b3 Added initial support for Dreamcast (thanks HERO!) Sam Lantinga <slouken@libsdl.org> parents: 398 diff changeset	137 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	138 #if SDL_AUDIO_DRIVER_MMEAUDIO
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	139 &MMEAUDIO_bootstrap,
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	140 #endif
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	141 #if SDL_AUDIO_DRIVER_DART
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	142 &DART_bootstrap,
1190 173c063d4f55 OS/2 port! Ryan C. Gordon <icculus@icculus.org> parents: 955 diff changeset	143 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	144 NULL
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	145 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	146
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	147 static SDL_AudioDevice *get_audio_device(SDL_AudioDeviceID id)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	148 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	149 id--;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	150 if ( (id >= SDL_arraysize(open_devices)) \|\| (open_devices[id] == NULL) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	151 SDL_SetError("Invalid audio device ID");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	152 return NULL;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	153 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	154
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	155 return open_devices[id];
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	156 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	157
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	158
3795 589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	159 /* stubs for audio drivers that don't need a specific entry point... */
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	160 static int SDL_AudioDetectDevices_Default(int iscapture) { return -1; }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	161 static void SDL_AudioThreadInit_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	162 static void SDL_AudioWaitDevice_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	163 static void SDL_AudioPlayDevice_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	164 static Uint8 *SDL_AudioGetDeviceBuf_Default(_THIS) { return NULL; }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	165 static void SDL_AudioWaitDone_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	166 static void SDL_AudioCloseDevice_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	167 static void SDL_AudioDeinitialize_Default(void) { /* no-op. */ }
3795 589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	168
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	169 static int
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	170 SDL_AudioOpenDevice_Default(_THIS, const char *devname, int iscapture)
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	171 {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	172 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	173 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	174
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	175 static const char *SDL_AudioGetDeviceName_Default(int index, int iscapture)
3795 589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	176 {
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	177 SDL_SetError("No such device");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	178 return NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	179 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	180
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	181 static void
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	182 SDL_AudioLockDevice_Default(SDL_AudioDevice * device)
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	183 {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	184 if (device->thread && (SDL_ThreadID() == device->threadid)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	185 return;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	186 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	187 SDL_mutexP(device->mixer_lock);
3795 589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	188 }
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	189
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	190 static void
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	191 SDL_AudioUnlockDevice_Default(SDL_AudioDevice * device)
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	192 {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	193 if (device->thread && (SDL_ThreadID() == device->threadid)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	194 return;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	195 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	196 SDL_mutexV(device->mixer_lock);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	197 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	198
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	199
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	200 static void finalize_audio_entry_points(void)
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	201 {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	202 /*
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	203 * Fill in stub functions for unused driver entry points. This lets us
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	204 * blindly call them without having to check for validity first.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	205 */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	206
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	207 #define FILL_STUB(x) \
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	208 if (current_audio.impl.x == NULL) { \
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	209 current_audio.impl.x = SDL_Audio##x##_Default; \
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	210 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	211 FILL_STUB(DetectDevices);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	212 FILL_STUB(GetDeviceName);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	213 FILL_STUB(OpenDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	214 FILL_STUB(ThreadInit);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	215 FILL_STUB(WaitDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	216 FILL_STUB(PlayDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	217 FILL_STUB(GetDeviceBuf);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	218 FILL_STUB(WaitDone);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	219 FILL_STUB(CloseDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	220 FILL_STUB(LockDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	221 FILL_STUB(UnlockDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	222 FILL_STUB(Deinitialize);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	223 #undef FILL_STUB
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	224 }
3795 589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	225
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	226
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 /* The general mixing thread function */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	228 int SDLCALL
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	229 SDL_RunAudio(void *devicep)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	231 SDL_AudioDevice device = (SDL_AudioDevice ) devicep;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	232 const int legacy_device = (device == open_devices[0]);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	233 Uint8 *stream;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	234 int stream_len;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	235 void *udata;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	236 void (SDLCALL * fill) (void userdata, Uint8 stream, int len);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	237 int silence;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	238
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	239 /* Perform any thread setup */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	240 device->threadid = SDL_ThreadID();
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	241 current_audio.impl.ThreadInit(device);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	243 /* Set up the mixing function */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	244 fill = device->spec.callback;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	245 udata = device->spec.userdata;
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	246
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	247 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	248 if (device->convert.src_format == AUDIO_U8) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	249 silence = 0x80;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	250 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	251 silence = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	252 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	253 stream_len = device->convert.len;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	254 } else {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	255 silence = device->spec.silence;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	256 stream_len = device->spec.size;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	257 }
1561 c724c4a99759 Try to fill the hardware audio buffer immediately. Ryan C. Gordon <icculus@icculus.org> parents: 1532 diff changeset	258
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	259 /* Loop, filling the audio buffers */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	260 while (device->enabled) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	261
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	262 /* Fill the current buffer with sound */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	263 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	264 if (device->convert.buf) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	265 stream = device->convert.buf;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	266 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	267 continue;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	268 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	269 } else {
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	270 stream = current_audio.impl.GetDeviceBuf(device);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	271 if (stream == NULL) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	272 stream = device->fake_stream;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	273 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	274 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	276 /* New code should fill buffer or set it to silence themselves. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	277 if (legacy_device) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	278 SDL_memset(stream, silence, stream_len);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	279 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	280
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	281 if (!device->paused) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	282 SDL_mutexP(device->mixer_lock);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	283 (*fill) (udata, stream, stream_len);
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	284 SDL_mutexV(device->mixer_lock);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	285 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	286
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	287 /* Convert the audio if necessary */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	288 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	289 SDL_ConvertAudio(&device->convert);
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	290 stream = current_audio.impl.GetDeviceBuf(device);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	291 if (stream == NULL) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	292 stream = device->fake_stream;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	293 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	294 SDL_memcpy(stream, device->convert.buf, device->convert.len_cvt);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	295 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	296
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	297 /* Ready current buffer for play and change current buffer */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	298 if (stream != device->fake_stream) {
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	299 current_audio.impl.PlayDevice(device);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	300 }
1562 1d487a3fab41 Fixed bug #18 Sam Lantinga <slouken@libsdl.org> parents: 1561 diff changeset	301
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	302 /* Wait for an audio buffer to become available */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	303 if (stream == device->fake_stream) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	304 SDL_Delay((device->spec.samples * 1000) / device->spec.freq);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	305 } else {
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	306 current_audio.impl.WaitDevice(device);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	307 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	308 }
1562 1d487a3fab41 Fixed bug #18 Sam Lantinga <slouken@libsdl.org> parents: 1561 diff changeset	309
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	310 /* Wait for the audio to drain.. */
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	311 current_audio.impl.WaitDone(device);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	312
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	313 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	315
322 fd93a09655e3 The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	316
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	317 static SDL_AudioFormat
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	318 SDL_ParseAudioFormat(const char *string)
1794 5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	319 {
3781 3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	320 #define CHECK_FMT_STRING(x) if (strcmp(string, #x) == 0) return AUDIO_##x
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	321 CHECK_FMT_STRING(U8);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	322 CHECK_FMT_STRING(S8);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	323 CHECK_FMT_STRING(U16LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	324 CHECK_FMT_STRING(S16LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	325 CHECK_FMT_STRING(U16MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	326 CHECK_FMT_STRING(S16MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	327 CHECK_FMT_STRING(U16SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	328 CHECK_FMT_STRING(S16SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	329 CHECK_FMT_STRING(U16);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	330 CHECK_FMT_STRING(S16);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	331 CHECK_FMT_STRING(S32LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	332 CHECK_FMT_STRING(S32MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	333 CHECK_FMT_STRING(S32SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	334 CHECK_FMT_STRING(S32);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	335 CHECK_FMT_STRING(F32LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	336 CHECK_FMT_STRING(F32MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	337 CHECK_FMT_STRING(F32SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	338 CHECK_FMT_STRING(F32);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	339 #undef CHECK_FMT_STRING
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	340 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	341 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	342
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	343 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	344 SDL_GetNumAudioDrivers(void)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	345 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	346 return (SDL_arraysize(bootstrap) - 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	347 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	348
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	349 const char *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	350 SDL_GetAudioDriver(int index)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	351 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	352 if (index >= 0 && index < SDL_GetNumAudioDrivers()) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	353 return (bootstrap[index]->name);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	354 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	355 return (NULL);
1794 5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	356 }
5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	357
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	358 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	359 SDL_AudioInit(const char *driver_name)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	360 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	361 int i = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	362 int initialized = 0;
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	363 int tried_to_init = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	364
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	365 if (SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	366 SDL_AudioQuit(); /* shutdown driver if already running. */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	367 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	368
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	369 SDL_memset(&current_audio, '\0', sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	370 SDL_memset(open_devices, '\0', sizeof (open_devices));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	371
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	372 /* Select the proper audio driver */
1909 8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit() Sam Lantinga <slouken@libsdl.org> parents: 1903 diff changeset	373 if (driver_name == NULL) {
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit() Sam Lantinga <slouken@libsdl.org> parents: 1903 diff changeset	374 driver_name = SDL_getenv("SDL_AUDIODRIVER");
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit() Sam Lantinga <slouken@libsdl.org> parents: 1903 diff changeset	375 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	376
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	377 for (i = 0; (!initialized) && (bootstrap[i]); ++i) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	378 /* make sure we should even try this driver before doing so... */
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	379 const AudioBootStrap *backend = bootstrap[i];
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	380 if ( ((driver_name) && (SDL_strcasecmp(backend->name, driver_name))) \|\|
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	381 ((!driver_name) && (backend->demand_only)) ) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	382 continue;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	383 }
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	384
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	385 tried_to_init = 1;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	386 SDL_memset(&current_audio, 0, sizeof (current_audio));
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	387 current_audio.name = backend->name;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	388 current_audio.desc = backend->desc;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	389 initialized = backend->init(&current_audio.impl);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	390 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	391
3804 b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered... Ryan C. Gordon <icculus@icculus.org> parents: 3803 diff changeset	392 if (!initialized) {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	393 /* specific drivers will set the error message if they fail... */
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	394 if (!tried_to_init) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	395 if (driver_name) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	396 SDL_SetError("%s not available", driver_name);
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	397 } else {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	398 SDL_SetError("No available audio device");
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	399 }
3804 b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered... Ryan C. Gordon <icculus@icculus.org> parents: 3803 diff changeset	400 }
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3843 diff changeset	401
3804 b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered... Ryan C. Gordon <icculus@icculus.org> parents: 3803 diff changeset	402 SDL_memset(&current_audio, 0, sizeof (current_audio));
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered... Ryan C. Gordon <icculus@icculus.org> parents: 3803 diff changeset	403 return (-1); /* No driver was available, so fail. */
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered... Ryan C. Gordon <icculus@icculus.org> parents: 3803 diff changeset	404 }
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered... Ryan C. Gordon <icculus@icculus.org> parents: 3803 diff changeset	405
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	406 finalize_audio_entry_points();
3795 589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	407
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	408 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	409 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	410
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	411 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	412 * Get the current audio driver name
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	413 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	414 const char *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	415 SDL_GetCurrentAudioDriver()
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	416 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	417 return current_audio.name;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	418 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	420
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	421 int
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	422 SDL_GetNumAudioDevices(int iscapture)
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	423 {
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	424 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	425 return -1;
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	426 }
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	427 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	428 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	429 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	430
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	431 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	432 return 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	433 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	434
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	435 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	436 return 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	437 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	438
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	439 return current_audio.impl.DetectDevices(iscapture);
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	440 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	441
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	442
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	443 const char *
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	444 SDL_GetAudioDeviceName(int index, int iscapture)
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	445 {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	446 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	447 SDL_SetError("Audio subsystem is not initialized");
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	448 return NULL;
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	449 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	450
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	451 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	452 SDL_SetError("No capture support");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	453 return NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	454 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	455
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	456 if (index < 0) {
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	457 SDL_SetError("No such device");
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	458 return NULL;
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	459 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	460
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	461 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	462 return DEFAULT_INPUT_DEVNAME;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	463 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	464
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	465 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	466 return DEFAULT_OUTPUT_DEVNAME;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	467 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	468
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	469 return current_audio.impl.GetDeviceName(index, iscapture);
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	470 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	471
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	472
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	473 static void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	474 close_audio_device(SDL_AudioDevice *device)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	475 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	476 device->enabled = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	477 if (device->thread != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	478 SDL_WaitThread(device->thread, NULL);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	479 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	480 if (device->mixer_lock != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	481 SDL_DestroyMutex(device->mixer_lock);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	482 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	483 if (device->fake_stream != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	484 SDL_FreeAudioMem(device->fake_stream);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	485 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	486 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	487 SDL_FreeAudioMem(device->convert.buf);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	488 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	489 if (device->opened) {
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	490 current_audio.impl.CloseDevice(device);
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	491 device->opened = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	492 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	493 SDL_FreeAudioMem(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	494 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	495
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	496
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	497 /*
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	498 * Sanity check desired AudioSpec for SDL_OpenAudio() in (orig).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	499 * Fills in a sanitized copy in (prepared).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	500 * Returns non-zero if okay, zero on fatal parameters in (orig).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	501 */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	502 static int
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	503 prepare_audiospec(const SDL_AudioSpec orig, SDL_AudioSpec prepared)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	504 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	505 SDL_memcpy(prepared, orig, sizeof (SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	506
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	507 if (orig->callback == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	508 SDL_SetError("SDL_OpenAudio() passed a NULL callback");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	509 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	510 }
262 ba5363e21df8 Don't allow multiple audio opens to succeed (until SDL 1.3) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	511
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	512 if (orig->freq == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	513 const char *env = SDL_getenv("SDL_AUDIO_FREQUENCY");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	514 if ( (!env) \|\| ((prepared->freq = SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	515 prepared->freq = 22050; /* a reasonable default */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	516 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	517 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	518
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	519 if (orig->format == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	520 const char *env = SDL_getenv("SDL_AUDIO_FORMAT");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	521 if ((!env) \|\| ((prepared->format = SDL_ParseAudioFormat(env)) == 0)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	522 prepared->format = AUDIO_S16; /* a reasonable default */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	523 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	524 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	525
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	526 switch (orig->channels) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	527 case 0: {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	528 const char *env = SDL_getenv("SDL_AUDIO_CHANNELS");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	529 if ( (!env) \|\| ((prepared->channels = SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	530 prepared->channels = 2; /* a reasonable default */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	531 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	532 break;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	533 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	534 case 1: /* Mono */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	535 case 2: /* Stereo */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	536 case 4: /* surround */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	537 case 6: /* surround with center and lfe */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	538 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	539 default:
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	540 SDL_SetError("Unsupported number of audio channels.");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	541 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	542 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	543
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	544 if (orig->samples == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	545 const char *env = SDL_getenv("SDL_AUDIO_SAMPLES");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	546 if ( (!env) \|\| ((prepared->samples = (Uint16) SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	547 /* Pick a default of ~46 ms at desired frequency */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	548 /* !!! FIXME: remove this when the non-Po2 resampling is in. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	549 const int samples = (prepared->freq / 1000) * 46;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	550 int power2 = 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	551 while (power2 < samples) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	552 power2 *= 2;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	553 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	554 prepared->samples = power2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	555 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	556 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	557
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	558 /* Calculate the silence and size of the audio specification */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	559 SDL_CalculateAudioSpec(prepared);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	560
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	561 return 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	562 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	563
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	564
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	565 static SDL_AudioDeviceID
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	566 open_audio_device(const char *devname, int iscapture,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	567 const SDL_AudioSpec _desired, SDL_AudioSpec obtained,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	568 int min_id)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	569 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	570 SDL_AudioDeviceID id = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	571 SDL_AudioSpec desired;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	572 SDL_AudioDevice *device;
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	573 int i = 0;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	574
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	575 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	576 SDL_SetError("Audio subsystem is not initialized");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	577 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	578 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	579
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	580 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	581 SDL_SetError("No capture support");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	582 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	583 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	584
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	585 if (!prepare_audiospec(_desired, &desired)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	586 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	587 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	588
3786 b70f4e9291bb High level now lets user select a specific audio device with an environment Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	589 /* If app doesn't care about a specific device, let the user override. */
b70f4e9291bb High level now lets user select a specific audio device with an environment Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	590 if (devname == NULL) {
b70f4e9291bb High level now lets user select a specific audio device with an environment Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	591 devname = SDL_getenv("SDL_AUDIO_DEVICE_NAME");
b70f4e9291bb High level now lets user select a specific audio device with an environment Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	592 }
b70f4e9291bb High level now lets user select a specific audio device with an environment Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	593
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	594 /*
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	595 * Catch device names at the high level for the simple case...
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	596 * This lets us have a basic "device enumeration" for systems that
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	597 * don't have multiple devices, but makes sure the device name is
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	598 * always NULL when it hits the low level.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	599 *
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	600 * Also make sure that the simple case prevents multiple simultaneous
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	601 * opens of the default system device.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	602 */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	603
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	604 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	605 if ((devname) && (SDL_strcmp(devname, DEFAULT_INPUT_DEVNAME) != 0)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	606 SDL_SetError("No such device");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	607 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	608 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	609 devname = NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	610
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	611 for (i = 0; i < SDL_arraysize(open_devices); i++) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	612 if ((open_devices[i]) && (open_devices[i]->iscapture)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	613 SDL_SetError("Audio device already open");
3840 be9bd1067c6c Some fixes that were discovered when trying to get OS/2 audio working again... Ryan C. Gordon <icculus@icculus.org> parents: 3837 diff changeset	614 return 0;
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	615 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	616 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	617 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	618
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	619 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	620 if ((devname) && (SDL_strcmp(devname, DEFAULT_OUTPUT_DEVNAME) != 0)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	621 SDL_SetError("No such device");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	622 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	623 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	624 devname = NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	625
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	626 for (i = 0; i < SDL_arraysize(open_devices); i++) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	627 if ((open_devices[i]) && (!open_devices[i]->iscapture)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	628 SDL_SetError("Audio device already open");
3840 be9bd1067c6c Some fixes that were discovered when trying to get OS/2 audio working again... Ryan C. Gordon <icculus@icculus.org> parents: 3837 diff changeset	629 return 0;
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	630 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	631 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	632 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	633
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	634 device = (SDL_AudioDevice *) SDL_AllocAudioMem(sizeof (SDL_AudioDevice));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	635 if (device == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	636 SDL_OutOfMemory();
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	637 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	638 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	639 SDL_memset(device, '\0', sizeof (SDL_AudioDevice));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	640 SDL_memcpy(&device->spec, &desired, sizeof (SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	641 device->enabled = 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	642 device->paused = 1;
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	643 device->iscapture = iscapture;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	644
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	645 /* Create a semaphore for locking the sound buffers */
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	646 if (!current_audio.impl.SkipMixerLock) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	647 device->mixer_lock = SDL_CreateMutex();
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	648 if (device->mixer_lock == NULL) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	649 close_audio_device(device);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	650 SDL_SetError("Couldn't create mixer lock");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	651 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	652 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	653 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	654
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	655 if (!current_audio.impl.OpenDevice(device, devname, iscapture)) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	656 close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	657 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	658 }
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	659 device->opened = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	660
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	661 /* If the audio driver changes the buffer size, accept it */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	662 if (device->spec.samples != desired.samples) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	663 desired.samples = device->spec.samples;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	664 SDL_CalculateAudioSpec(&device->spec);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	665 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	666
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	667 /* Allocate a fake audio memory buffer */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	668 device->fake_stream = SDL_AllocAudioMem(device->spec.size);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	669 if (device->fake_stream == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	670 close_audio_device(device);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	671 SDL_OutOfMemory();
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	672 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	673 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	674
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	675 /* See if we need to do any conversion */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	676 if (obtained != NULL) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	677 SDL_memcpy(obtained, &device->spec, sizeof(SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	678 } else if (desired.freq != device->spec.freq \|\|
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	679 desired.format != device->spec.format \|\|
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	680 desired.channels != device->spec.channels) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	681 /* Build an audio conversion block */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	682 if (SDL_BuildAudioCVT(&device->convert,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	683 desired.format, desired.channels,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	684 desired.freq,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	685 device->spec.format, device->spec.channels,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	686 device->spec.freq) < 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	687 close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	688 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	689 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	690 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	691 device->convert.len = desired.size;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	692 device->convert.buf =
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	693 (Uint8 ) SDL_AllocAudioMem(device->convert.len
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	694 device->convert.len_mult);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	695 if (device->convert.buf == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	696 close_audio_device(device);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	697 SDL_OutOfMemory();
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	698 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	699 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	700 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	701 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	702
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	703 /* Find an available device ID and store the structure... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	704 for (id = min_id-1; id < SDL_arraysize(open_devices); id++) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	705 if (open_devices[id] == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	706 open_devices[id] = device;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	707 break;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	708 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	709 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	710
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	711 if (id == SDL_arraysize(open_devices)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	712 SDL_SetError("Too many open audio devices");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	713 close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	714 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	715 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	716
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	717 /* Start the audio thread if necessary */
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	718 if (!current_audio.impl.ProvidesOwnCallbackThread) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	719 /* Start the audio thread */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	720 /* !!! FIXME: this is nasty. */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1379 diff changeset	721 #if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC)
1330 450721ad5436 It's now possible to build SDL without any C runtime at all on Windows, Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	722 #undef SDL_CreateThread
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	723 device->thread = SDL_CreateThread(SDL_RunAudio, device, NULL, NULL);
1330 450721ad5436 It's now possible to build SDL without any C runtime at all on Windows, Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	724 #else
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	725 device->thread = SDL_CreateThread(SDL_RunAudio, device);
1330 450721ad5436 It's now possible to build SDL without any C runtime at all on Windows, Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	726 #endif
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	727 if (device->thread == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	728 SDL_CloseAudioDevice(id+1);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	729 SDL_SetError("Couldn't create audio thread");
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	730 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	731 }
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	732 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	733
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	734 return id+1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	735 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	736
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	737
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	738 int
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	739 SDL_OpenAudio(const SDL_AudioSpec * desired, SDL_AudioSpec * obtained)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	740 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	741 SDL_AudioDeviceID id = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	742
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	743 /* Start up the audio driver, if necessary. This is legacy behaviour! */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	744 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	745 if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	746 return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	747 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	748 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	749
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	750 /* SDL_OpenAudio() is legacy and can only act on Device ID #1. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	751 if (open_devices[0] != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	752 SDL_SetError("Audio device is already opened");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	753 return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	754 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	755
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	756 id = open_audio_device(NULL, 0, desired, obtained, 1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	757 if (id > 1) { /* this should never happen in theory... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	758 SDL_CloseAudioDevice(id);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	759 SDL_SetError("Internal error"); /* MUST be Device ID #1! */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	760 return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	761 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	762
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	763 return ((id == 0) ? -1 : 0);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	764 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	765
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	766 SDL_AudioDeviceID
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	767 SDL_OpenAudioDevice(const char *device, int iscapture,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	768 const SDL_AudioSpec desired, SDL_AudioSpec obtained)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	769 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	770 return open_audio_device(device, iscapture, desired, obtained, 2);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	771 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	772
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	773 SDL_audiostatus
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	774 SDL_GetAudioDeviceStatus(SDL_AudioDeviceID devid)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	775 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	776 SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	777 SDL_audiostatus status = SDL_AUDIO_STOPPED;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	778 if (device && device->enabled) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	779 if (device->paused) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	780 status = SDL_AUDIO_PAUSED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	781 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	782 status = SDL_AUDIO_PLAYING;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	783 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	784 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	785 return (status);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	786 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	787
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	788
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	789 SDL_audiostatus
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	790 SDL_GetAudioStatus(void)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	791 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	792 return SDL_GetAudioDeviceStatus(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	793 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	794
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	795 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	796 SDL_PauseAudioDevice(SDL_AudioDeviceID devid, int pause_on)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	797 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	798 SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	799 if (device) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	800 device->paused = pause_on;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	801 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	802 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	803
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	804 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	805 SDL_PauseAudio(int pause_on)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	806 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	807 SDL_PauseAudioDevice(1, pause_on);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	808 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	809
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	810
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	811 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	812 SDL_LockAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	813 {
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	814 /* Obtain a lock on the mixing buffers */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	815 SDL_AudioDevice *device = get_audio_device(devid);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	816 if (device) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	817 current_audio.impl.LockDevice(device);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	818 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	819 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	820
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	821 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	822 SDL_LockAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	823 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	824 SDL_LockAudioDevice(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	825 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	826
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	827 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	828 SDL_UnlockAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	829 {
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	830 /* Obtain a lock on the mixing buffers */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	831 SDL_AudioDevice *device = get_audio_device(devid);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	832 if (device) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	833 current_audio.impl.UnlockDevice(device);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	834 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	835 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	836
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	837 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	838 SDL_UnlockAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	839 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	840 SDL_UnlockAudioDevice(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	841 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	842
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	843 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	844 SDL_CloseAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	845 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	846 SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	847 if (device) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	848 close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	849 open_devices[devid-1] = NULL;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	850 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	851 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	852
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	853 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	854 SDL_CloseAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	855 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	856 SDL_CloseAudioDevice(1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	857 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	858
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	859 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	860 SDL_AudioQuit(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	861 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	862 SDL_AudioDeviceID i;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	863 for (i = 0; i < SDL_arraysize(open_devices); i++) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	864 SDL_CloseAudioDevice(i);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	865 }
3787 8d74a4721ca9 Added deinitialize hook. Ryan C. Gordon <icculus@icculus.org> parents: 3786 diff changeset	866
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	867 /* Free the driver data */
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	868 current_audio.impl.Deinitialize();
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	869 SDL_memset(&current_audio, '\0', sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	870 SDL_memset(open_devices, '\0', sizeof (open_devices));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	871 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	872
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	873 #define NUM_FORMATS 10
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	874 static int format_idx;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	875 static int format_idx_sub;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	876 static SDL_AudioFormat format_list[NUM_FORMATS][NUM_FORMATS] = {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	877 {AUDIO_U8, AUDIO_S8, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB,
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	878 AUDIO_U16MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB},
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	879 {AUDIO_S8, AUDIO_U8, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB,
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	880 AUDIO_U16MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB},
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	881 {AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_S32LSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	882 AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	883 {AUDIO_S16MSB, AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_S32MSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	884 AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	885 {AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_S32LSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	886 AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	887 {AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_S16MSB, AUDIO_S16LSB, AUDIO_S32MSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	888 AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_U8, AUDIO_S8},
1993 7a3889fc9e5d Reordered the favored audio format list a little. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	889 {AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_S16LSB,
7a3889fc9e5d Reordered the favored audio format list a little. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	890 AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	891 {AUDIO_S32MSB, AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_S16MSB,
7a3889fc9e5d Reordered the favored audio format list a little. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	892 AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	893 {AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_S16LSB,
7a3889fc9e5d Reordered the favored audio format list a little. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	894 AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	895 {AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_S32MSB, AUDIO_S32LSB, AUDIO_S16MSB,
7a3889fc9e5d Reordered the favored audio format list a little. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	896 AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	897 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	898
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	899 SDL_AudioFormat
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	900 SDL_FirstAudioFormat(SDL_AudioFormat format)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	901 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	902 for (format_idx = 0; format_idx < NUM_FORMATS; ++format_idx) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	903 if (format_list[format_idx][0] == format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	904 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	905 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	906 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	907 format_idx_sub = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	908 return (SDL_NextAudioFormat());
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	909 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	910
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	911 SDL_AudioFormat
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	912 SDL_NextAudioFormat(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	913 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	914 if ((format_idx == NUM_FORMATS) \|\| (format_idx_sub == NUM_FORMATS)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	915 return (0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	916 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	917 return (format_list[format_idx][format_idx_sub++]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	918 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	919
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	920 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	921 SDL_CalculateAudioSpec(SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	922 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	923 switch (spec->format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	924 case AUDIO_U8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	925 spec->silence = 0x80;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	926 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	927 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	928 spec->silence = 0x00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	929 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	930 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	931 spec->size = SDL_AUDIO_BITSIZE(spec->format) / 8;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	932 spec->size *= spec->channels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	933 spec->size *= spec->samples;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	934 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	935
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	936
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	937 /*
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	938 * Moved here from SDL_mixer.c, since it relies on internals of an opened
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	939 * audio device (and is deprecated, by the way!).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	940 */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	941 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	942 SDL_MixAudio(Uint8 * dst, const Uint8 * src, Uint32 len, int volume)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	943 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	944 /* Mix the user-level audio format */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	945 SDL_AudioDevice *device = get_audio_device(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	946 if (device != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	947 SDL_AudioFormat format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	948 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	949 format = device->convert.src_format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	950 } else {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	951 format = device->spec.format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	952 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	953 SDL_MixAudioFormat(dst, src, format, len, volume);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	954 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	955 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3781 diff changeset	956
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	957 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

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