sdl-ios-xcode: src/audio/SDL

annotate src/audio/SDL_audio.c @ 4740:abf528de6d2e

Added condition check macros to make the code clear and easier to debug. Updated code to use macros.

author	dewyatt
date	Sun, 27 Jun 2010 22:03:08 -0400
parents	4160ba33b597
children	791b3256fb22 79aa6c61f33b

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
3697 f7b03b6838cb Fixed bug #926 Sam Lantinga <slouken@libsdl.org> parents: 3537 diff changeset	3 Copyright (C) 1997-2010 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"
2984 0b160c970b7e Fixed some dependency issues with SDL_revision.h Sam Lantinga <slouken@libsdl.org> parents: 2979 diff changeset	27 #include "SDL_audio.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #include "SDL_audio_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 #include "SDL_audiomem.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #include "SDL_sysaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31
2979 d578ae900755 Fixed crash on Windows Sam Lantinga <slouken@libsdl.org> parents: 2947 diff changeset	32 #define _THIS SDL_AudioDevice *this
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	33
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	34 static SDL_AudioDriver current_audio;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	35 static SDL_AudioDevice *open_devices[16];
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	36
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	37 /* !!! FIXME: These are wordy and unlocalized... */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	38 #define DEFAULT_OUTPUT_DEVNAME "System audio output device"
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	39 #define DEFAULT_INPUT_DEVNAME "System audio capture device"
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	40
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	41
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	42 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	43 * Not all of these will be compiled and linked in, but it's convenient
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	44 * to have a complete list here and saves yet-another block of #ifdefs...
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	45 * Please see bootstrap[], below, for the actual #ifdef mess.
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	46 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	47 extern AudioBootStrap BSD_AUDIO_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	48 extern AudioBootStrap DSP_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	49 extern AudioBootStrap DMA_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	50 extern AudioBootStrap ALSA_bootstrap;
2271 60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2147 diff changeset	51 extern AudioBootStrap PULSEAUDIO_bootstrap;
3099 82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200 Sam Lantinga <slouken@libsdl.org> parents: 3096 diff changeset	52 extern AudioBootStrap QSAAUDIO_bootstrap;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	53 extern AudioBootStrap SUNAUDIO_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	54 extern AudioBootStrap DMEDIA_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	55 extern AudioBootStrap ARTS_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	56 extern AudioBootStrap ESD_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	57 extern AudioBootStrap NAS_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	58 extern AudioBootStrap DSOUND_bootstrap;
2070 dbfa1ebd73b0 Fixed building of Windows waveout audio. Ryan C. Gordon <icculus@icculus.org> parents: 2060 diff changeset	59 extern AudioBootStrap WINWAVEOUT_bootstrap;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	60 extern AudioBootStrap PAUDIO_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	61 extern AudioBootStrap BEOSAUDIO_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	62 extern AudioBootStrap COREAUDIO_bootstrap;
2765 f55c87ae336b Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	63 extern AudioBootStrap COREAUDIOIPHONE_bootstrap;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	64 extern AudioBootStrap SNDMGR_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	65 extern AudioBootStrap DISKAUD_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	66 extern AudioBootStrap DUMMYAUD_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	67 extern AudioBootStrap DCAUD_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	68 extern AudioBootStrap MMEAUDIO_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	69 extern AudioBootStrap DART_bootstrap;
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	70 extern AudioBootStrap NDSAUD_bootstrap;
2947 fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2942 diff changeset	71 extern AudioBootStrap FUSIONSOUND_bootstrap;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	72
1190 173c063d4f55 OS/2 port! Ryan C. Gordon <icculus@icculus.org> parents: 955 diff changeset	73
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	74 /* Available audio drivers */
3162 dc1eb82ffdaa Von: Thomas Zimmermann Sam Lantinga <slouken@libsdl.org> parents: 3139 diff changeset	75 static const AudioBootStrap *const 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
2939 084e5b4fc5be Audio driver priority: favor PulseAudio and ALSA over OSS. Ryan C. Gordon <icculus@icculus.org> parents: 2938 diff changeset	79 #if SDL_AUDIO_DRIVER_PULSEAUDIO
084e5b4fc5be Audio driver priority: favor PulseAudio and ALSA over OSS. Ryan C. Gordon <icculus@icculus.org> parents: 2938 diff changeset	80 &PULSEAUDIO_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	81 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	82 #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	83 &ALSA_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84 #endif
2939 084e5b4fc5be Audio driver priority: favor PulseAudio and ALSA over OSS. Ryan C. Gordon <icculus@icculus.org> parents: 2938 diff changeset	85 #if SDL_AUDIO_DRIVER_OSS
084e5b4fc5be Audio driver priority: favor PulseAudio and ALSA over OSS. Ryan C. Gordon <icculus@icculus.org> parents: 2938 diff changeset	86 &DSP_bootstrap,
084e5b4fc5be Audio driver priority: favor PulseAudio and ALSA over OSS. Ryan C. Gordon <icculus@icculus.org> parents: 2938 diff changeset	87 &DMA_bootstrap,
2271 60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2147 diff changeset	88 #endif
3099 82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200 Sam Lantinga <slouken@libsdl.org> parents: 3096 diff changeset	89 #if SDL_AUDIO_DRIVER_QSA
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200 Sam Lantinga <slouken@libsdl.org> parents: 3096 diff changeset	90 &QSAAUDIO_bootstrap,
663 8bedd6d61642 Date: Sat, 2 Aug 2003 16:22:51 +0300 Sam Lantinga <slouken@libsdl.org> parents: 654 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_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	93 &SUNAUDIO_bootstrap,
148 8758b8d42cd9 Audio subsystem no longer assumes sun audio API on UNIX systems Sam Lantinga <slouken@libsdl.org> parents: 121 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_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	96 &DMEDIA_bootstrap,
35 d3bc792e136d Added detection of Open Sound System on Solaris x86 Sam Lantinga <slouken@lokigames.com> parents: 21 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_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	99 &ARTS_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_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	102 &ESD_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_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	105 &NAS_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_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	108 &DSOUND_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109 #endif
2070 dbfa1ebd73b0 Fixed building of Windows waveout audio. Ryan C. Gordon <icculus@icculus.org> parents: 2060 diff changeset	110 #if SDL_AUDIO_DRIVER_WINWAVEOUT
dbfa1ebd73b0 Fixed building of Windows waveout audio. Ryan C. Gordon <icculus@icculus.org> parents: 2060 diff changeset	111 &WINWAVEOUT_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112 #endif
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	113 #if SDL_AUDIO_DRIVER_PAUDIO
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	114 &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	115 #endif
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	116 #if SDL_AUDIO_DRIVER_BEOSAUDIO
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	117 &BEOSAUDIO_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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_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	120 &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	121 #endif
2765 f55c87ae336b Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	122 #if SDL_AUDIO_DRIVER_COREAUDIOIPHONE
f55c87ae336b Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	123 &COREAUDIOIPHONE_bootstrap,
f55c87ae336b Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	124 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	125 #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	126 &DISKAUD_bootstrap,
68 ac6645260d31 Added an audio driver that writes to disk (thanks Ryan!) Sam Lantinga <slouken@lokigames.com> parents: 38 diff changeset	127 #endif
1532 30f189cdd82b Implemented dummy audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 1487 diff changeset	128 #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	129 &DUMMYAUD_bootstrap,
1532 30f189cdd82b Implemented dummy audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 1487 diff changeset	130 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	131 #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	132 &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	133 #endif
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	134 #if SDL_AUDIO_DRIVER_NDS
204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	135 &NDSAUD_bootstrap,
204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	136 #endif
2947 fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2942 diff changeset	137 #if SDL_AUDIO_DRIVER_FUSIONSOUND
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2942 diff changeset	138 &FUSIONSOUND_bootstrap,
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2942 diff changeset	139 #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	140 NULL
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 };
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	142
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	143 static SDL_AudioDevice *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	144 get_audio_device(SDL_AudioDeviceID id)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	145 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	146 id--;
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	147 if ((id >= SDL_arraysize(open_devices)) \|\| (open_devices[id] == NULL)) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	148 SDL_SetError("Invalid audio device ID");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	149 return NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	150 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	151
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	152 return open_devices[id];
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	153 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	154
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	155
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	156 /* stubs for audio drivers that don't need a specific entry point... */
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	157 static int
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	158 SDL_AudioDetectDevices_Default(int iscapture)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	159 {
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	160 return -1;
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	161 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	162
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	163 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	164 SDL_AudioThreadInit_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	165 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	166 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	167
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	168 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	169 SDL_AudioWaitDevice_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	170 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	171 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	172
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	173 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	174 SDL_AudioPlayDevice_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	175 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	176 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	177
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	178 static Uint8 *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	179 SDL_AudioGetDeviceBuf_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	180 {
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	181 return NULL;
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	182 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	183
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	184 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	185 SDL_AudioWaitDone_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	186 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	187 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	188
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	189 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	190 SDL_AudioCloseDevice_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	191 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	192 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	193
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	194 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	195 SDL_AudioDeinitialize_Default(void)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	196 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	197 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	198
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	199 static int
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	200 SDL_AudioOpenDevice_Default(_THIS, const char *devname, int iscapture)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	201 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	202 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	203 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	204
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	205 static const char *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	206 SDL_AudioGetDeviceName_Default(int index, int iscapture)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	207 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	208 SDL_SetError("No such device");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	209 return NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	210 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	211
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	212 static void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	213 SDL_AudioLockDevice_Default(SDL_AudioDevice * device)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	214 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	215 if (device->thread && (SDL_ThreadID() == device->threadid)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	216 return;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	217 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	218 SDL_mutexP(device->mixer_lock);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	219 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	220
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	221 static void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	222 SDL_AudioUnlockDevice_Default(SDL_AudioDevice * device)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	223 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	224 if (device->thread && (SDL_ThreadID() == device->threadid)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	225 return;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	226 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	227 SDL_mutexV(device->mixer_lock);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	228 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	229
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	231 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	232 finalize_audio_entry_points(void)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	233 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	234 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	235 * Fill in stub functions for unused driver entry points. This lets us
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	236 * blindly call them without having to check for validity first.
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	237 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	238
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	239 #define FILL_STUB(x) \
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	240 if (current_audio.impl.x == NULL) { \
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	241 current_audio.impl.x = SDL_Audio##x##_Default; \
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	242 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	243 FILL_STUB(DetectDevices);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	244 FILL_STUB(GetDeviceName);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	245 FILL_STUB(OpenDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	246 FILL_STUB(ThreadInit);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	247 FILL_STUB(WaitDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	248 FILL_STUB(PlayDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	249 FILL_STUB(GetDeviceBuf);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	250 FILL_STUB(WaitDone);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	251 FILL_STUB(CloseDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	252 FILL_STUB(LockDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	253 FILL_STUB(UnlockDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	254 FILL_STUB(Deinitialize);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	255 #undef FILL_STUB
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	256 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	257
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	258 /* Streaming functions (for when the input and output buffer sizes are different) */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	259 /* Write [length] bytes from buf into the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	260 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	261 SDL_StreamWrite(SDL_AudioStreamer * stream, Uint8 * buf, int length)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	262 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	263 int i;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	264
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	265 for (i = 0; i < length; ++i) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	266 stream->buffer[stream->write_pos] = buf[i];
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	267 ++stream->write_pos;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	268 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	269 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	270
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	271 /* Read [length] bytes out of the streamer into buf */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	272 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	273 SDL_StreamRead(SDL_AudioStreamer * stream, Uint8 * buf, int length)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	274 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	275 int i;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	276
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	277 for (i = 0; i < length; ++i) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	278 buf[i] = stream->buffer[stream->read_pos];
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	279 ++stream->read_pos;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	280 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	281 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	282
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	283 int
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	284 SDL_StreamLength(SDL_AudioStreamer * stream)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	285 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	286 return (stream->write_pos - stream->read_pos) % stream->max_len;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	287 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	288
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	289 /* Initialize the stream by allocating the buffer and setting the read/write heads to the beginning */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	290 int
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	291 SDL_StreamInit(SDL_AudioStreamer * stream, int max_len, Uint8 silence)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	292 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	293 /* First try to allocate the buffer */
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	294 stream->buffer = (Uint8 *) SDL_malloc(max_len);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	295 if (stream->buffer == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	296 return -1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	297 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	298
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	299 stream->max_len = max_len;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	300 stream->read_pos = 0;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	301 stream->write_pos = 0;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	302
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	303 /* Zero out the buffer */
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	304 SDL_memset(stream->buffer, silence, max_len);
2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	305
2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	306 return 0;
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	307 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	308
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	309 /* Deinitialize the stream simply by freeing the buffer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	310 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	311 SDL_StreamDeinit(SDL_AudioStreamer * stream)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	312 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	313 if (stream->buffer != NULL) {
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	314 SDL_free(stream->buffer);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	315 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	316 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	317
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319 /* 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	320 int SDLCALL
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	321 SDL_RunAudio(void *devicep)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	323 SDL_AudioDevice device = (SDL_AudioDevice ) devicep;
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	324 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	325 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	326 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	327 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	328 int silence;
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	329 Uint32 delay;
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	330
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	331 /* For streaming when the buffer sizes don't match up */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	332 Uint8 *istream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	333 int istream_len;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	334
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	335 /* Perform any thread setup */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	336 device->threadid = SDL_ThreadID();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	337 current_audio.impl.ThreadInit(device);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	338
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	339 /* Set up the mixing function */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	340 fill = device->spec.callback;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	341 udata = device->spec.userdata;
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	342
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	343 /* By default do not stream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	344 device->use_streamer = 0;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	345
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	346 if (device->convert.needed) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	347 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	348 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	349 } 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	350 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	351 }
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	352
3040 62d4992e5a92 indent Sam Lantinga <slouken@libsdl.org> parents: 3032 diff changeset	353 #if 0 /* !!! FIXME: I took len_div out of the structure. Use rate_incr instead? */
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	354 /* If the result of the conversion alters the length, i.e. resampling is being used, use the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	355 if (device->convert.len_mult != 1 \|\| device->convert.len_div != 1) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	356 /* The streamer's maximum length should be twice whichever is larger: spec.size or len_cvt */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	357 stream_max_len = 2 * device->spec.size;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	358 if (device->convert.len_mult > device->convert.len_div) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	359 stream_max_len *= device->convert.len_mult;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	360 stream_max_len /= device->convert.len_div;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	361 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	362 if (SDL_StreamInit(&device->streamer, stream_max_len, silence) <
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	363 0)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	364 return -1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	365 device->use_streamer = 1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	366
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	367 /* istream_len should be the length of what we grab from the callback and feed to conversion,
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	368 so that we get close to spec_size. I.e. we want device.spec_size = istream_len * u / d
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	369 */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	370 istream_len =
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	371 device->spec.size * device->convert.len_div /
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	372 device->convert.len_mult;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	373 }
3021 f3dcf04412cf First shot at new audio resampling code. Ryan C. Gordon <icculus@icculus.org> parents: 2984 diff changeset	374 #endif
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	375
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	376 /* stream_len = device->convert.len; */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	377 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	378 } else {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	379 silence = device->spec.silence;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	380 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	381 }
1561 c724c4a99759 Try to fill the hardware audio buffer immediately. Ryan C. Gordon <icculus@icculus.org> parents: 1532 diff changeset	382
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	383 /* Calculate the delay while paused */
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	384 delay = ((device->spec.samples * 1000) / device->spec.freq);
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	385
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	386 /* Determine if the streamer is necessary here */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	387 if (device->use_streamer == 1) {
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	388 /* This code is almost the same as the old code. The difference is, instead of reading
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	389 directly from the callback into "stream", then converting and sending the audio off,
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	390 we go: callback -> "istream" -> (conversion) -> streamer -> stream -> device.
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	391 However, reading and writing with streamer are done separately:
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	392 - We only call the callback and write to the streamer when the streamer does not
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	393 contain enough samples to output to the device.
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	394 - We only read from the streamer and tell the device to play when the streamer
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	395 does have enough samples to output.
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	396 This allows us to perform resampling in the conversion step, where the output of the
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	397 resampling process can be any number. We will have to see what a good size for the
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	398 stream's maximum length is, but I suspect 2*max(len_cvt, stream_len) is a good figure.
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	399 */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	400 while (device->enabled) {
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	401
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	402 if (device->paused) {
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	403 SDL_Delay(delay);
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	404 continue;
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	405 }
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	406
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	407 /* Only read in audio if the streamer doesn't have enough already (if it does not have enough samples to output) */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	408 if (SDL_StreamLength(&device->streamer) < stream_len) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	409 /* Set up istream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	410 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	411 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	412 istream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	413 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	414 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	415 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	416 } else {
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	417 /* FIXME: Ryan, this is probably wrong. I imagine we don't want to get
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	418 * a device buffer both here and below in the stream output.
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	419 */
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	420 istream = current_audio.impl.GetDeviceBuf(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	421 if (istream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	422 istream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	423 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	424 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	425
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	426 /* Read from the callback into the _input_ stream */
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	427 SDL_mutexP(device->mixer_lock);
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	428 (*fill) (udata, istream, istream_len);
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	429 SDL_mutexV(device->mixer_lock);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	430
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	431 /* Convert the audio if necessary and write to the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	432 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	433 SDL_ConvertAudio(&device->convert);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	434 if (istream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	435 istream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	436 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	437 /SDL_memcpy(istream, device->convert.buf, device->convert.len_cvt); /
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	438 SDL_StreamWrite(&device->streamer, device->convert.buf,
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	439 device->convert.len_cvt);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	440 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	441 SDL_StreamWrite(&device->streamer, istream, istream_len);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	442 }
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	443 }
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	444
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	445 /* Only output audio if the streamer has enough to output */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	446 if (SDL_StreamLength(&device->streamer) >= stream_len) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	447 /* Set up the output stream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	448 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	449 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	450 stream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	451 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	452 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	453 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	454 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	455 stream = current_audio.impl.GetDeviceBuf(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	456 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	457 stream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	458 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	459 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	460
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	461 /* Now read from the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	462 SDL_StreamRead(&device->streamer, stream, stream_len);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	463
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	464 /* Ready current buffer for play and change current buffer */
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	465 if (stream != device->fake_stream) {
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	466 current_audio.impl.PlayDevice(device);
3096 ae4e80dbe330 Date: Tue, 17 Feb 2009 14:00:25 +0100 Sam Lantinga <slouken@libsdl.org> parents: 3040 diff changeset	467 /* Wait for an audio buffer to become available */
ae4e80dbe330 Date: Tue, 17 Feb 2009 14:00:25 +0100 Sam Lantinga <slouken@libsdl.org> parents: 3040 diff changeset	468 current_audio.impl.WaitDevice(device);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	469 } else {
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	470 SDL_Delay(delay);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	471 }
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	472 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	473
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	474 }
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	475 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	476 /* Otherwise, do not use the streamer. This is the old code. */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	477
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	478 /* Loop, filling the audio buffers */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	479 while (device->enabled) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	480
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	481 if (device->paused) {
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	482 SDL_Delay(delay);
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	483 continue;
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	484 }
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	485
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	486 /* Fill the current buffer with sound */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	487 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	488 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	489 stream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	490 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	491 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	492 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	493 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	494 stream = current_audio.impl.GetDeviceBuf(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	495 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	496 stream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	497 }
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	498 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	499
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	500 SDL_mutexP(device->mixer_lock);
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	501 (*fill) (udata, stream, stream_len);
00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	502 SDL_mutexV(device->mixer_lock);
1562 1d487a3fab41 Fixed bug #18 Sam Lantinga <slouken@libsdl.org> parents: 1561 diff changeset	503
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	504 /* Convert the audio if necessary */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	505 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	506 SDL_ConvertAudio(&device->convert);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	507 stream = current_audio.impl.GetDeviceBuf(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	508 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	509 stream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	510 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	511 SDL_memcpy(stream, device->convert.buf,
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	512 device->convert.len_cvt);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	513 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	514
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	515 /* Ready current buffer for play and change current buffer */
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	516 if (stream != device->fake_stream) {
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	517 current_audio.impl.PlayDevice(device);
3096 ae4e80dbe330 Date: Tue, 17 Feb 2009 14:00:25 +0100 Sam Lantinga <slouken@libsdl.org> parents: 3040 diff changeset	518 /* Wait for an audio buffer to become available */
ae4e80dbe330 Date: Tue, 17 Feb 2009 14:00:25 +0100 Sam Lantinga <slouken@libsdl.org> parents: 3040 diff changeset	519 current_audio.impl.WaitDevice(device);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	520 } else {
3336 00fab0ebfe54 Fixed a bug where when the audio starts paused all the DirectSound buffers Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	521 SDL_Delay(delay);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	522 }
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 }
1562 1d487a3fab41 Fixed bug #18 Sam Lantinga <slouken@libsdl.org> parents: 1561 diff changeset	525
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	526 /* Wait for the audio to drain.. */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	527 current_audio.impl.WaitDone(device);
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	528
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	529 /* If necessary, deinit the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	530 if (device->use_streamer == 1)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	531 SDL_StreamDeinit(&device->streamer);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	532
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 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	534 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	535
322 fd93a09655e3 The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	536
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	537 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	538 SDL_ParseAudioFormat(const char *string)
1794 5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	539 {
2076 939420dee849 Use SDL_strcmp(), not strcmp(). Ryan C. Gordon <icculus@icculus.org> parents: 2070 diff changeset	540 #define CHECK_FMT_STRING(x) if (SDL_strcmp(string, #x) == 0) return AUDIO_##x
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	541 CHECK_FMT_STRING(U8);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	542 CHECK_FMT_STRING(S8);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	543 CHECK_FMT_STRING(U16LSB);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	544 CHECK_FMT_STRING(S16LSB);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	545 CHECK_FMT_STRING(U16MSB);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	546 CHECK_FMT_STRING(S16MSB);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	547 CHECK_FMT_STRING(U16SYS);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	548 CHECK_FMT_STRING(S16SYS);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	549 CHECK_FMT_STRING(U16);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	550 CHECK_FMT_STRING(S16);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	551 CHECK_FMT_STRING(S32LSB);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	552 CHECK_FMT_STRING(S32MSB);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	553 CHECK_FMT_STRING(S32SYS);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	554 CHECK_FMT_STRING(S32);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	555 CHECK_FMT_STRING(F32LSB);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	556 CHECK_FMT_STRING(F32MSB);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	557 CHECK_FMT_STRING(F32SYS);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	558 CHECK_FMT_STRING(F32);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	559 #undef CHECK_FMT_STRING
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	560 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	561 }
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	562
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	563 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	564 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	565 {
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	566 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	567 }
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	568
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	569 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	570 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	571 {
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	572 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	573 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	574 }
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	575 return (NULL);
1794 5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	576 }
5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	577
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	578 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	579 SDL_AudioInit(const char *driver_name)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	580 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	581 int i = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	582 int initialized = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	583 int tried_to_init = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	584
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	585 if (SDL_WasInit(SDL_INIT_AUDIO)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	586 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	587 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	588
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	589 SDL_memset(&current_audio, '\0', sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	590 SDL_memset(open_devices, '\0', sizeof(open_devices));
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	591
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	592 /* 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	593 if (driver_name == NULL) {
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit() Sam Lantinga <slouken@libsdl.org> parents: 1903 diff changeset	594 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	595 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	596
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	597 for (i = 0; (!initialized) && (bootstrap[i]); ++i) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	598 /* make sure we should even try this driver before doing so... */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	599 const AudioBootStrap *backend = bootstrap[i];
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	600 if (((driver_name) && (SDL_strcasecmp(backend->name, driver_name))) \|\|
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	601 ((!driver_name) && (backend->demand_only))) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	602 continue;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	603 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	604
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	605 tried_to_init = 1;
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	606 SDL_memset(&current_audio, 0, sizeof(current_audio));
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	607 current_audio.name = backend->name;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	608 current_audio.desc = backend->desc;
3699 4160ba33b597 Removed test for "driver is valid, but doesn't see any audio devices." Ryan C. Gordon <icculus@icculus.org> parents: 3697 diff changeset	609 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	610 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	611
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	612 if (!initialized) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	613 /* specific drivers will set the error message if they fail... */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	614 if (!tried_to_init) {
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	615 if (driver_name) {
3699 4160ba33b597 Removed test for "driver is valid, but doesn't see any audio devices." Ryan C. Gordon <icculus@icculus.org> parents: 3697 diff changeset	616 SDL_SetError("Audio target '%s' not available", driver_name);
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	617 } 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	618 SDL_SetError("No available audio device");
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	619 }
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	620 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	621
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	622 SDL_memset(&current_audio, 0, sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	623 return (-1); /* No driver was available, so fail. */
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	624 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	625
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	626 finalize_audio_entry_points();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	627
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	628 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	629 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	630
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	631 /*
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	632 * 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	633 */
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	634 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	635 SDL_GetCurrentAudioDriver()
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	636 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	637 return current_audio.name;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	638 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	639
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	640
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	641 int
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	642 SDL_GetNumAudioDevices(int iscapture)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	643 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	644 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	645 return -1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	646 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	647 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	648 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	649 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	650
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	651 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	652 return 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	653 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	654
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	655 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	656 return 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	657 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	658
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	659 return current_audio.impl.DetectDevices(iscapture);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	660 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	661
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	662
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	663 const char *
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	664 SDL_GetAudioDeviceName(int index, int iscapture)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	665 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	666 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	667 SDL_SetError("Audio subsystem is not initialized");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	668 return NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	669 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	670
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	671 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	672 SDL_SetError("No capture support");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	673 return 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	674 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	675
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	676 if (index < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	677 SDL_SetError("No such device");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	678 return NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	679 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	680
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	681 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	682 return DEFAULT_INPUT_DEVNAME;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	683 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	684
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	685 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	686 return DEFAULT_OUTPUT_DEVNAME;
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	687 }
262 ba5363e21df8 Don't allow multiple audio opens to succeed (until SDL 1.3) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	688
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	689 return current_audio.impl.GetDeviceName(index, iscapture);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	690 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	691
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	692
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	693 static void
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	694 close_audio_device(SDL_AudioDevice * device)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	695 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	696 device->enabled = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	697 if (device->thread != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	698 SDL_WaitThread(device->thread, NULL);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	699 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	700 if (device->mixer_lock != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	701 SDL_DestroyMutex(device->mixer_lock);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	702 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	703 if (device->fake_stream != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	704 SDL_FreeAudioMem(device->fake_stream);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	705 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	706 if (device->convert.needed) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	707 SDL_FreeAudioMem(device->convert.buf);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	708 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	709 if (device->opened) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	710 current_audio.impl.CloseDevice(device);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	711 device->opened = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	712 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	713 SDL_FreeAudioMem(device);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	714 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	715
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	716
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	717 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	718 * Sanity check desired AudioSpec for SDL_OpenAudio() in (orig).
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	719 * Fills in a sanitized copy in (prepared).
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	720 * Returns non-zero if okay, zero on fatal parameters in (orig).
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	721 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	722 static int
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	723 prepare_audiospec(const SDL_AudioSpec * orig, SDL_AudioSpec * prepared)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	724 {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	725 SDL_memcpy(prepared, orig, sizeof(SDL_AudioSpec));
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	726
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	727 if (orig->callback == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	728 SDL_SetError("SDL_OpenAudio() passed a NULL callback");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	729 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	730 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	731
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	732 if (orig->freq == 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	733 const char *env = SDL_getenv("SDL_AUDIO_FREQUENCY");
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	734 if ((!env) \|\| ((prepared->freq = SDL_atoi(env)) == 0)) {
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	735 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	736 }
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	737 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	738
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	739 if (orig->format == 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	740 const char *env = SDL_getenv("SDL_AUDIO_FORMAT");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	741 if ((!env) \|\| ((prepared->format = SDL_ParseAudioFormat(env)) == 0)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	742 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	743 }
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	744 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	745
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	746 switch (orig->channels) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	747 case 0:{
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	748 const char *env = SDL_getenv("SDL_AUDIO_CHANNELS");
2141 e1a70460c354 stupid indent Sam Lantinga <slouken@libsdl.org> parents: 2130 diff changeset	749 if ((!env) \|\| ((prepared->channels = (Uint8) SDL_atoi(env)) == 0)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	750 prepared->channels = 2; /* a reasonable default */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	751 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	752 break;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	753 }
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	754 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	755 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	756 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	757 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	758 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	759 default:
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	760 SDL_SetError("Unsupported number of audio channels.");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	761 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	762 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	763
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	764 if (orig->samples == 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	765 const char *env = SDL_getenv("SDL_AUDIO_SAMPLES");
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	766 if ((!env) \|\| ((prepared->samples = (Uint16) SDL_atoi(env)) == 0)) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	767 /* Pick a default of ~46 ms at desired frequency */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	768 /* !!! FIXME: remove this when the non-Po2 resampling is in. */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	769 const int samples = (prepared->freq / 1000) * 46;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	770 int power2 = 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	771 while (power2 < samples) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	772 power2 *= 2;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	773 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	774 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	775 }
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	776 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	777
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	778 /* Calculate the silence and size of the audio specification */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	779 SDL_CalculateAudioSpec(prepared);
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	780
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	781 return 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	782 }
1408 ceb5c2fec4f1 Fixed some preprocessor mangling Sam Lantinga <slouken@libsdl.org> parents: 1406 diff changeset	783
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	784
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	785 static SDL_AudioDeviceID
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	786 open_audio_device(const char *devname, int iscapture,
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	787 const SDL_AudioSpec * desired, SDL_AudioSpec * obtained,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	788 int allowed_changes, int min_id)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	789 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	790 SDL_AudioDeviceID id = 0;
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	791 SDL_AudioSpec _obtained;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	792 SDL_AudioDevice *device;
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	793 SDL_bool build_cvt;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	794 int i = 0;
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	795
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	796 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	797 SDL_SetError("Audio subsystem is not initialized");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	798 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	799 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	800
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	801 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	802 SDL_SetError("No capture support");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	803 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	804 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	805
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	806 if (!obtained) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	807 obtained = &_obtained;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	808 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	809 if (!prepare_audiospec(desired, obtained)) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	810 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	811 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	812
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	813 /* If app doesn't care about a specific device, let the user override. */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	814 if (devname == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	815 devname = SDL_getenv("SDL_AUDIO_DEVICE_NAME");
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	816 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	817
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	818 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	819 * Catch device names at the high level for the simple case...
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	820 * This lets us have a basic "device enumeration" for systems that
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	821 * don't have multiple devices, but makes sure the device name is
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	822 * always NULL when it hits the low level.
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	823 *
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	824 * Also make sure that the simple case prevents multiple simultaneous
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	825 * opens of the default system device.
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	826 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	827
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	828 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	829 if ((devname) && (SDL_strcmp(devname, DEFAULT_INPUT_DEVNAME) != 0)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	830 SDL_SetError("No such device");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	831 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	832 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	833 devname = NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	834
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	835 for (i = 0; i < SDL_arraysize(open_devices); i++) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	836 if ((open_devices[i]) && (open_devices[i]->iscapture)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	837 SDL_SetError("Audio device already open");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	838 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	839 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	840 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	841 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	842
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	843 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	844 if ((devname) && (SDL_strcmp(devname, DEFAULT_OUTPUT_DEVNAME) != 0)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	845 SDL_SetError("No such device");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	846 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	847 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	848 devname = NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	849
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	850 for (i = 0; i < SDL_arraysize(open_devices); i++) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	851 if ((open_devices[i]) && (!open_devices[i]->iscapture)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	852 SDL_SetError("Audio device already open");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	853 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	854 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	855 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	856 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	857
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	858 device = (SDL_AudioDevice *) SDL_AllocAudioMem(sizeof(SDL_AudioDevice));
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	859 if (device == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	860 SDL_OutOfMemory();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	861 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	862 }
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	863 SDL_memset(device, '\0', sizeof(SDL_AudioDevice));
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	864 device->spec = *obtained;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	865 device->enabled = 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	866 device->paused = 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	867 device->iscapture = iscapture;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	868
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	869 /* Create a semaphore for locking the sound buffers */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	870 if (!current_audio.impl.SkipMixerLock) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	871 device->mixer_lock = SDL_CreateMutex();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	872 if (device->mixer_lock == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	873 close_audio_device(device);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	874 SDL_SetError("Couldn't create mixer lock");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	875 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	876 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	877 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	878
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	879 if (!current_audio.impl.OpenDevice(device, devname, iscapture)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	880 close_audio_device(device);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	881 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	882 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	883 device->opened = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	884
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	885 /* Allocate a fake audio memory buffer */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	886 device->fake_stream = SDL_AllocAudioMem(device->spec.size);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	887 if (device->fake_stream == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	888 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	889 SDL_OutOfMemory();
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	890 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	891 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	892
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	893 /* If the audio driver changes the buffer size, accept it */
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	894 if (device->spec.samples != obtained->samples) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	895 obtained->samples = device->spec.samples;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	896 SDL_CalculateAudioSpec(obtained);
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	897 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	898
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	899 /* See if we need to do any conversion */
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	900 build_cvt = SDL_FALSE;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	901 if (obtained->freq != device->spec.freq) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	902 if (allowed_changes & SDL_AUDIO_ALLOW_FREQUENCY_CHANGE) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	903 obtained->freq = device->spec.freq;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	904 } else {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	905 build_cvt = SDL_TRUE;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	906 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	907 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	908 if (obtained->format != device->spec.format) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	909 if (allowed_changes & SDL_AUDIO_ALLOW_FORMAT_CHANGE) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	910 obtained->format = device->spec.format;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	911 } else {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	912 build_cvt = SDL_TRUE;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	913 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	914 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	915 if (obtained->channels != device->spec.channels) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	916 if (allowed_changes & SDL_AUDIO_ALLOW_CHANNELS_CHANGE) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	917 obtained->channels = device->spec.channels;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	918 } else {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	919 build_cvt = SDL_TRUE;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	920 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	921 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	922 if (build_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	923 /* Build an audio conversion block */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	924 if (SDL_BuildAudioCVT(&device->convert,
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	925 obtained->format, obtained->channels,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	926 obtained->freq,
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	927 device->spec.format, device->spec.channels,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	928 device->spec.freq) < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	929 close_audio_device(device);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	930 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	931 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	932 if (device->convert.needed) {
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	933 device->convert.len = (int) (((double) obtained->size) /
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	934 device->convert.len_ratio);
2053 716cf90f24a0 1.3 branch version of revision 2878. Ryan C. Gordon <icculus@icculus.org> parents: 2049 diff changeset	935
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	936 device->convert.buf =
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	937 (Uint8 ) SDL_AllocAudioMem(device->convert.len
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	938 device->convert.len_mult);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	939 if (device->convert.buf == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	940 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	941 SDL_OutOfMemory();
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	942 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	943 }
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	944 }
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	945 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	946
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	947 /* Find an available device ID and store the structure... */
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	948 for (id = min_id - 1; id < SDL_arraysize(open_devices); id++) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	949 if (open_devices[id] == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	950 open_devices[id] = device;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	951 break;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	952 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	953 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	954
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	955 if (id == SDL_arraysize(open_devices)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	956 SDL_SetError("Too many open audio devices");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	957 close_audio_device(device);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	958 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	959 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	960
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	961 /* Start the audio thread if necessary */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	962 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	963 /* Start the audio thread */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	964 /* !!! FIXME: this is nasty. */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1379 diff changeset	965 #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	966 #undef SDL_CreateThread
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	967 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	968 #else
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	969 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	970 #endif
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	971 if (device->thread == NULL) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	972 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	973 SDL_SetError("Couldn't create audio thread");
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	974 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	975 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	976 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	977
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	978 return id + 1;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	979 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	980
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	981
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	982 int
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	983 SDL_OpenAudio(SDL_AudioSpec * desired, SDL_AudioSpec * obtained)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	984 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	985 SDL_AudioDeviceID id = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	986
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	987 /* Start up the audio driver, if necessary. This is legacy behaviour! */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	988 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	989 if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 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	990 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	991 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	992 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	993
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	994 /* SDL_OpenAudio() is legacy and can only act on Device ID #1. */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	995 if (open_devices[0] != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	996 SDL_SetError("Audio device is already opened");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	997 return (-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	998 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	999
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1000 if (obtained) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1001 id = open_audio_device(NULL, 0, desired, obtained,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1002 SDL_AUDIO_ALLOW_ANY_CHANGE, 1);
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1003 } else {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1004 id = open_audio_device(NULL, 0, desired, desired, 0, 1);
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1005 }
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1006 if (id > 1) { /* this should never happen in theory... */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1007 SDL_CloseAudioDevice(id);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1008 SDL_SetError("Internal error"); /* MUST be Device ID #1! */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1009 return (-1);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1010 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1011
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1012 return ((id == 0) ? -1 : 0);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1013 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1014
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1015 SDL_AudioDeviceID
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1016 SDL_OpenAudioDevice(const char *device, int iscapture,
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1017 const SDL_AudioSpec * desired, SDL_AudioSpec * obtained,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1018 int allowed_changes)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1019 {
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1020 return open_audio_device(device, iscapture, desired, obtained,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1021 allowed_changes, 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	1022 }
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	1023
3537 e897a4a9f578 Switch to mixed case for consistency with other enumerations Sam Lantinga <slouken@libsdl.org> parents: 3336 diff changeset	1024 SDL_AudioStatus
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1025 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	1026 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1027 SDL_AudioDevice *device = get_audio_device(devid);
3537 e897a4a9f578 Switch to mixed case for consistency with other enumerations Sam Lantinga <slouken@libsdl.org> parents: 3336 diff changeset	1028 SDL_AudioStatus status = SDL_AUDIO_STOPPED;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1029 if (device && device->enabled) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1030 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	1031 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	1032 } 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	1033 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	1034 }
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	1035 }
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	1036 return (status);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1037 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1038
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1039
3537 e897a4a9f578 Switch to mixed case for consistency with other enumerations Sam Lantinga <slouken@libsdl.org> parents: 3336 diff changeset	1040 SDL_AudioStatus
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1041 SDL_GetAudioStatus(void)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1042 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1043 return SDL_GetAudioDeviceStatus(1);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1044 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1045
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1046 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1047 SDL_PauseAudioDevice(SDL_AudioDeviceID devid, int pause_on)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1048 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1049 SDL_AudioDevice *device = get_audio_device(devid);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1050 if (device) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1051 device->paused = pause_on;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1052 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1053 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1054
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	1055 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	1056 SDL_PauseAudio(int pause_on)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1057 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1058 SDL_PauseAudioDevice(1, pause_on);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1059 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1060
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1061
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1062 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1063 SDL_LockAudioDevice(SDL_AudioDeviceID devid)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1064 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1065 /* Obtain a lock on the mixing buffers */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1066 SDL_AudioDevice *device = get_audio_device(devid);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1067 if (device) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1068 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	1069 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1070 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1071
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	1072 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	1073 SDL_LockAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1074 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1075 SDL_LockAudioDevice(1);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1076 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1077
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1078 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1079 SDL_UnlockAudioDevice(SDL_AudioDeviceID devid)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1080 {
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	1081 /* Obtain a lock on the mixing buffers */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1082 SDL_AudioDevice *device = get_audio_device(devid);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1083 if (device) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1084 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	1085 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1086 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1087
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	1088 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	1089 SDL_UnlockAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1090 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1091 SDL_UnlockAudioDevice(1);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1092 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1093
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1094 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1095 SDL_CloseAudioDevice(SDL_AudioDeviceID devid)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1096 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1097 SDL_AudioDevice *device = get_audio_device(devid);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1098 if (device) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1099 close_audio_device(device);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1100 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	1101 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1102 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1103
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	1104 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	1105 SDL_CloseAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1106 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1107 SDL_CloseAudioDevice(1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1108 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1109
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	1110 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	1111 SDL_AudioQuit(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1112 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1113 SDL_AudioDeviceID i;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1114 for (i = 0; i < SDL_arraysize(open_devices); i++) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1115 SDL_CloseAudioDevice(i);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1116 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1117
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1118 /* Free the driver data */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1119 current_audio.impl.Deinitialize();
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1120 SDL_memset(&current_audio, '\0', sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1121 SDL_memset(open_devices, '\0', sizeof(open_devices));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1122 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1123
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1124 #define NUM_FORMATS 10
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1125 static int format_idx;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1126 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	1127 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	1128 {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	1129 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	1130 {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	1131 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	1132 {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	1133 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	1134 {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	1135 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	1136 {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	1137 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	1138 {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	1139 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	1140 {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	1141 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	1142 {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	1143 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	1144 {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	1145 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	1146 {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	1147 AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1148 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1149
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1150 SDL_AudioFormat
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1151 SDL_FirstAudioFormat(SDL_AudioFormat format)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1152 {
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	1153 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	1154 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	1155 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	1156 }
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	1157 }
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	1158 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	1159 return (SDL_NextAudioFormat());
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1160 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1161
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1162 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	1163 SDL_NextAudioFormat(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1164 {
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	1165 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	1166 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	1167 }
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	1168 return (format_list[format_idx][format_idx_sub++]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1169 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1170
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	1171 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	1172 SDL_CalculateAudioSpec(SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1173 {
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	1174 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	1175 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	1176 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	1177 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	1178 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	1179 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	1180 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	1181 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1182 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	1183 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	1184 spec->size *= spec->samples;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1185 }
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	1186
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1187
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1188 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1189 * Moved here from SDL_mixer.c, since it relies on internals of an opened
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1190 * audio device (and is deprecated, by the way!).
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1191 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1192 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1193 SDL_MixAudio(Uint8 * dst, const Uint8 * src, Uint32 len, int volume)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1194 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1195 /* Mix the user-level audio format */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1196 SDL_AudioDevice *device = get_audio_device(1);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1197 if (device != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1198 SDL_AudioFormat format;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1199 if (device->convert.needed) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1200 format = device->convert.src_format;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1201 } else {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1202 format = device->spec.format;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1203 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1204 SDL_MixAudioFormat(dst, src, format, len, volume);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1205 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1206 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1207
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	1208 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/SDL_audio.c @ 4740:abf528de6d2e