sdl-ios-xcode: src/audio/SDL

annotate src/audio/SDL_audio.c @ 2984:0b160c970b7e

Fixed some dependency issues with SDL_revision.h

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 04 Jan 2009 05:41:52 +0000
parents	d578ae900755
children	f3dcf04412cf

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
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2765 diff changeset	3 Copyright (C) 1997-2009 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;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	52 extern AudioBootStrap QNXNTOAUDIO_bootstrap;
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 MINTAUDIO_GSXB_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 MINTAUDIO_MCSN_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 MINTAUDIO_STFA_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 MINTAUDIO_XBIOS_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 MINTAUDIO_DMA8_bootstrap;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	70 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	71 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	72 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	73 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	74 extern AudioBootStrap DART_bootstrap;
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	75 extern AudioBootStrap NDSAUD_bootstrap;
2947 fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2942 diff changeset	76 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	77
1190 173c063d4f55 OS/2 port! Ryan C. Gordon <icculus@icculus.org> parents: 955 diff changeset	78
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 /* Available audio drivers */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80 static AudioBootStrap *bootstrap[] = {
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: 1562 diff changeset	81 #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	82 &BSD_AUDIO_bootstrap,
94 ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev Sam Lantinga <slouken@lokigames.com> parents: 68 diff changeset	83 #endif
2939 084e5b4fc5be Audio driver priority: favor PulseAudio and ALSA over OSS. Ryan C. Gordon <icculus@icculus.org> parents: 2938 diff changeset	84 #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	85 &PULSEAUDIO_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	87 #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	88 &ALSA_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 #endif
2939 084e5b4fc5be Audio driver priority: favor PulseAudio and ALSA over OSS. Ryan C. Gordon <icculus@icculus.org> parents: 2938 diff changeset	90 #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	91 &DSP_bootstrap,
084e5b4fc5be Audio driver priority: favor PulseAudio and ALSA over OSS. Ryan C. Gordon <icculus@icculus.org> parents: 2938 diff changeset	92 &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	93 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	94 #if SDL_AUDIO_DRIVER_QNXNTO
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	95 &QNXNTOAUDIO_bootstrap,
663 8bedd6d61642 Date: Sat, 2 Aug 2003 16:22:51 +0300 Sam Lantinga <slouken@libsdl.org> parents: 654 diff changeset	96 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	97 #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	98 &SUNAUDIO_bootstrap,
148 8758b8d42cd9 Audio subsystem no longer assumes sun audio API on UNIX systems Sam Lantinga <slouken@libsdl.org> parents: 121 diff changeset	99 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	100 #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	101 &DMEDIA_bootstrap,
35 d3bc792e136d Added detection of Open Sound System on Solaris x86 Sam Lantinga <slouken@lokigames.com> parents: 21 diff changeset	102 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	103 #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	104 &ARTS_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	105 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	106 #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	107 &ESD_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	109 #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	110 &NAS_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	111 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	112 #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	113 &DSOUND_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 #endif
2070 dbfa1ebd73b0 Fixed building of Windows waveout audio. Ryan C. Gordon <icculus@icculus.org> parents: 2060 diff changeset	115 #if SDL_AUDIO_DRIVER_WINWAVEOUT
dbfa1ebd73b0 Fixed building of Windows waveout audio. Ryan C. Gordon <icculus@icculus.org> parents: 2060 diff changeset	116 &WINWAVEOUT_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117 #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	118 #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	119 &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	120 #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	121 #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	122 &BEOSAUDIO_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	123 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	124 #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	125 &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	126 #endif
2765 f55c87ae336b Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	127 #if SDL_AUDIO_DRIVER_COREAUDIOIPHONE
f55c87ae336b Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	128 &COREAUDIOIPHONE_bootstrap,
f55c87ae336b Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	129 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	130 #if SDL_AUDIO_DRIVER_SNDMGR
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	131 &SNDMGR_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	133 #if SDL_AUDIO_DRIVER_MINT
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	134 &MINTAUDIO_GSXB_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	135 &MINTAUDIO_MCSN_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	136 &MINTAUDIO_STFA_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	137 &MINTAUDIO_XBIOS_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	138 &MINTAUDIO_DMA8_bootstrap,
398 d219b0e02f5f Added Atari audio support (thanks Patrice!) Sam Lantinga <slouken@libsdl.org> parents: 322 diff changeset	139 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	140 #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	141 &DISKAUD_bootstrap,
68 ac6645260d31 Added an audio driver that writes to disk (thanks Ryan!) Sam Lantinga <slouken@lokigames.com> parents: 38 diff changeset	142 #endif
1532 30f189cdd82b Implemented dummy audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 1487 diff changeset	143 #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	144 &DUMMYAUD_bootstrap,
1532 30f189cdd82b Implemented dummy audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 1487 diff changeset	145 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	146 #if SDL_AUDIO_DRIVER_DC
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	147 &DCAUD_bootstrap,
509 dad72daf44b3 Added initial support for Dreamcast (thanks HERO!) Sam Lantinga <slouken@libsdl.org> parents: 398 diff changeset	148 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	149 #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	150 &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	151 #endif
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	152 #if SDL_AUDIO_DRIVER_DART
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	153 &DART_bootstrap,
1190 173c063d4f55 OS/2 port! Ryan C. Gordon <icculus@icculus.org> parents: 955 diff changeset	154 #endif
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	155 #if SDL_AUDIO_DRIVER_NDS
204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	156 &NDSAUD_bootstrap,
204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	157 #endif
2947 fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2942 diff changeset	158 #if SDL_AUDIO_DRIVER_FUSIONSOUND
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2942 diff changeset	159 &FUSIONSOUND_bootstrap,
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2942 diff changeset	160 #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	161 NULL
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 };
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	163
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	164 static SDL_AudioDevice *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	165 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	166 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	167 id--;
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	168 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	169 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	170 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	171 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	172
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	173 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	174 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	175
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	176
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	177 /* 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	178 static int
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	179 SDL_AudioDetectDevices_Default(int iscapture)
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 -1;
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_AudioThreadInit_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_AudioWaitDevice_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_AudioPlayDevice_Default(_THIS)
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 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	198
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	199 static Uint8 *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	200 SDL_AudioGetDeviceBuf_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	201 {
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	202 return NULL;
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	203 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	204
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	205 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	206 SDL_AudioWaitDone_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	207 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	208 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	209
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	210 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	211 SDL_AudioCloseDevice_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	212 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	213 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2728 diff changeset	214
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	215 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	216 SDL_AudioDeinitialize_Default(void)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	217 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	218 }
2049 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 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	221 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	222 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	223 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	224 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	225
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	226 static const char *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	227 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	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 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	230 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	231 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232
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 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	234 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	235 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	236 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	237 return;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	238 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	239 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	240 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	241
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	242 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	243 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	244 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	245 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	246 return;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	247 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	248 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	249 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	250
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	252 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	253 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	254 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	255 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	256 * 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	257 * 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	258 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	259
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	260 #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	261 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	262 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	263 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	264 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	265 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	266 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	267 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	268 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	269 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	270 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	271 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	272 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	273 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	274 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	275 FILL_STUB(Deinitialize);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	276 #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	277 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	278
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	279 /* 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	280 /* 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	281 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	282 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	283 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	284 int i;
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 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	287 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	288 ++stream->write_pos;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	289 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	290 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	291
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	292 /* 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	293 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	294 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	295 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	296 int i;
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 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	299 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	300 ++stream->read_pos;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	301 }
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
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	304 int
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	305 SDL_StreamLength(SDL_AudioStreamer * stream)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	306 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	307 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	308 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	309
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	310 /* 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	311 int
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	312 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	313 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	314 /* First try to allocate the buffer */
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	315 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	316 if (stream->buffer == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	317 return -1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	318 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	319
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	320 stream->max_len = max_len;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	321 stream->read_pos = 0;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	322 stream->write_pos = 0;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	323
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	324 /* Zero out the buffer */
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	325 SDL_memset(stream->buffer, silence, max_len);
2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	326
2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	327 return 0;
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	328 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	329
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	330 /* 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	331 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	332 SDL_StreamDeinit(SDL_AudioStreamer * stream)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	333 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	334 if (stream->buffer != NULL) {
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	335 SDL_free(stream->buffer);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	336 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	337 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	338
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	339
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	340 /* 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	341 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	342 SDL_RunAudio(void *devicep)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	343 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	344 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	345 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	346 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	347 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	348 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	349 int silence;
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	350 int stream_max_len;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	351
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	352 /* 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	353 Uint8 *istream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	354 int istream_len;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	355
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	356 /* 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	357 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	358 current_audio.impl.ThreadInit(device);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	359
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	360 /* 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	361 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	362 udata = device->spec.userdata;
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	363
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	364 /* By default do not stream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	365 device->use_streamer = 0;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	366
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	367 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	368 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	369 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	370 } 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	371 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	372 }
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	373
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	374 /* 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	375 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	376 /* 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	377 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	378 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	379 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	380 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	381 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	382 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	383 0)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	384 return -1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	385 device->use_streamer = 1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	386
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	387 /* 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	388 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	389 */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	390 istream_len =
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	391 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	392 device->convert.len_mult;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	393 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	394
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	395 /* stream_len = device->convert.len; */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	396 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	397 } 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	398 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	399 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	400 }
1561 c724c4a99759 Try to fill the hardware audio buffer immediately. Ryan C. Gordon <icculus@icculus.org> parents: 1532 diff changeset	401
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	402 /* 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	403 if (device->use_streamer == 1) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	404 /* This code is almost the same as the old code. The difference is, instead of reding
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	405 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	406 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	407 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	408 - 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	409 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	410 - 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	411 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	412 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	413 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	414 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	415 */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	416 while (device->enabled) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	417 /* 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	418 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	419 /* Set up istream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	420 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	421 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	422 istream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	423 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	424 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	425 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	426 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	427 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	428 if (istream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	429 istream = device->fake_stream;
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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	432
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	433 /* Read from the callback into the _input_ stream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	434 if (!device->paused) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	435 SDL_mutexP(device->mixer_lock);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	436 (*fill) (udata, istream, istream_len);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	437 SDL_mutexV(device->mixer_lock);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	438 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	439
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	440 /* 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	441 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	442 SDL_ConvertAudio(&device->convert);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	443 if (istream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	444 istream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	445 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	446 /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	447 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	448 device->convert.len_cvt);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	449 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	450 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	451 }
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	452 }
2716 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 /* 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	455 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	456 /* Set up the output stream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	457 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	458 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	459 stream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	460 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	461 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	462 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	463 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	464 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	465 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	466 stream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	467 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	468 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	469
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	470 /* Now read from the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	471 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	472
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	473 /* Ready current buffer for play and change current buffer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	474 if (stream != device->fake_stream) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	475 current_audio.impl.PlayDevice(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	476 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	477
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	478 /* Wait for an audio buffer to become available */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	479 if (stream == device->fake_stream) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	480 SDL_Delay((device->spec.samples * 1000) /
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	481 device->spec.freq);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	482 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	483 current_audio.impl.WaitDevice(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	484 }
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	485 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	486
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	487 }
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	488 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	489 /* Otherwise, do not use the streamer. This is the old code. */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	490
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	491 /* Loop, filling the audio buffers */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	492 while (device->enabled) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	493
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	494 /* 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	495 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	496 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	497 stream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	498 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	499 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	500 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	501 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	502 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	503 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	504 stream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	505 }
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	506 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	507
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	508 if (!device->paused) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	509 SDL_mutexP(device->mixer_lock);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	510 (*fill) (udata, stream, stream_len);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	511 SDL_mutexV(device->mixer_lock);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	512 }
1562 1d487a3fab41 Fixed bug #18 Sam Lantinga <slouken@libsdl.org> parents: 1561 diff changeset	513
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	514 /* Convert the audio if necessary */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	515 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	516 SDL_ConvertAudio(&device->convert);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	517 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	518 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	519 stream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	520 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	521 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	522 device->convert.len_cvt);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	523 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	524
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	525 /* Ready current buffer for play and change current buffer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	526 if (stream != device->fake_stream) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	527 current_audio.impl.PlayDevice(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	528 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	529
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	530 /* Wait for an audio buffer to become available */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	531 if (stream == device->fake_stream) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	532 SDL_Delay((device->spec.samples * 1000) / device->spec.freq);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	533 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	534 current_audio.impl.WaitDevice(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	535 }
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	536 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	537 }
1562 1d487a3fab41 Fixed bug #18 Sam Lantinga <slouken@libsdl.org> parents: 1561 diff changeset	538
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	539 /* 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	540 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	541
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	542 /* If necessary, deinit the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	543 if (device->use_streamer == 1)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	544 SDL_StreamDeinit(&device->streamer);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	545
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	546 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	547 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	548
322 fd93a09655e3 The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	549
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	550 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	551 SDL_ParseAudioFormat(const char *string)
1794 5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	552 {
2076 939420dee849 Use SDL_strcmp(), not strcmp(). Ryan C. Gordon <icculus@icculus.org> parents: 2070 diff changeset	553 #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	554 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	555 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	556 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	557 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	558 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	559 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	560 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	561 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	562 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	563 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	564 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	565 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	566 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	567 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	568 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	569 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	570 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	571 CHECK_FMT_STRING(F32);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	572 #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	573 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	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
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	576 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	577 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	578 {
c121d94672cb SDL 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 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	580 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	581
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	582 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	583 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	584 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	585 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	586 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	587 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	588 return (NULL);
1794 5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	589 }
5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	590
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	591 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	592 SDL_AudioInit(const char *driver_name)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	593 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	594 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	595 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	596 int tried_to_init = 0;
2938 2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	597 int rc = 0;
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	598 int best_choice = -1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	599
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	600 if (SDL_WasInit(SDL_INIT_AUDIO)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	601 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	602 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	603
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	604 SDL_memset(&current_audio, '\0', sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	605 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	606
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	607 /* 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	608 if (driver_name == NULL) {
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit() Sam Lantinga <slouken@libsdl.org> parents: 1903 diff changeset	609 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	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 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	613 /* 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	614 const AudioBootStrap *backend = bootstrap[i];
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	615 if (((driver_name) && (SDL_strcasecmp(backend->name, driver_name))) \|\|
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	616 ((!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	617 continue;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	618 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	619
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	620 tried_to_init = 1;
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	621 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	622 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	623 current_audio.desc = backend->desc;
2938 2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	624 rc = backend->init(&current_audio.impl);
2942 1e431c2631ee indent Sam Lantinga <slouken@libsdl.org> parents: 2939 diff changeset	625 if (rc == 2) { /* init'd, and devices available. Take it! */
2938 2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	626 initialized = 1;
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	627 best_choice = i;
2942 1e431c2631ee indent Sam Lantinga <slouken@libsdl.org> parents: 2939 diff changeset	628 } else if (rc == 1) { /* init'd, but can't see any devices. */
2979 d578ae900755 Fixed crash on Windows Sam Lantinga <slouken@libsdl.org> parents: 2947 diff changeset	629 if (current_audio.impl.Deinitialize) {
d578ae900755 Fixed crash on Windows Sam Lantinga <slouken@libsdl.org> parents: 2947 diff changeset	630 current_audio.impl.Deinitialize();
d578ae900755 Fixed crash on Windows Sam Lantinga <slouken@libsdl.org> parents: 2947 diff changeset	631 }
2938 2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	632 if (best_choice == -1) {
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	633 best_choice = i;
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	634 }
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	635 }
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	636 }
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	637
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	638 /* No definite choice. Pick one that works but can't promise a device. */
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	639 if ((!initialized) && (best_choice != -1)) {
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	640 const AudioBootStrap *backend = bootstrap[best_choice];
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	641 SDL_memset(&current_audio, 0, sizeof(current_audio));
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	642 current_audio.name = backend->name;
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	643 current_audio.desc = backend->desc;
2929ed239d2a Adjusted default choice of audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 2866 diff changeset	644 initialized = (backend->init(&current_audio.impl) > 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	645 }
2049 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 (!initialized) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	648 /* 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	649 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	650 if (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	651 SDL_SetError("%s not available", 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	652 } 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	653 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	654 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	655 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	656
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	657 SDL_memset(&current_audio, 0, sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	658 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	659 }
2049 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 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	662
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	663 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	664 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	665
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	666 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	667 * 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	668 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	669 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	670 SDL_GetCurrentAudioDriver()
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	671 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	672 return current_audio.name;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	673 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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
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	676 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	677 SDL_GetNumAudioDevices(int iscapture)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	678 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	679 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	680 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	681 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	682 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	683 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	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
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	686 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	687 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	688 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	689
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	690 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	691 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	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
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	694 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	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
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	697
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	698 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	699 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	700 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	701 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	702 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	703 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	704 }
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 ((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	707 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	708 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	709 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	710
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	711 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	712 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	713 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	714 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	715
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	716 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	717 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	718 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	719
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	720 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	721 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	722 }
262 ba5363e21df8 Don't allow multiple audio opens to succeed (until SDL 1.3) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	723
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 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	725 }
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
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	728 static void
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	729 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	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 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	732 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	733 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	734 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	735 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	736 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	737 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	738 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	739 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	740 }
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 (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	742 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	743 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	744 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	745 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	746 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	747 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	748 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	749 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	750
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	751
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	752 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	753 * 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	754 * 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	755 * 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	756 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	757 static int
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	758 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	759 {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	760 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	761
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	762 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	763 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	764 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	765 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	766
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	767 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	768 const char *env = SDL_getenv("SDL_AUDIO_FREQUENCY");
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	769 if ((!env) \|\| ((prepared->freq = SDL_atoi(env)) == 0)) {
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	770 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	771 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	772 }
2049 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 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	775 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	776 if ((!env) \|\| ((prepared->format = SDL_ParseAudioFormat(env)) == 0)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	777 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	778 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	779 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	780
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	781 switch (orig->channels) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	782 case 0:{
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	783 const char *env = SDL_getenv("SDL_AUDIO_CHANNELS");
2141 e1a70460c354 stupid indent Sam Lantinga <slouken@libsdl.org> parents: 2130 diff changeset	784 if ((!env) \|\| ((prepared->channels = (Uint8) SDL_atoi(env)) == 0)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	785 prepared->channels = 2; /* a reasonable default */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	786 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	787 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	788 }
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	789 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	790 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	791 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	792 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	793 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	794 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	795 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	796 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	797 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	798
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	799 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	800 const char *env = SDL_getenv("SDL_AUDIO_SAMPLES");
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	801 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	802 /* 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	803 /* !!! 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	804 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	805 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	806 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	807 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	808 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	809 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	810 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	811 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	812
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	813 /* 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	814 SDL_CalculateAudioSpec(prepared);
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	815
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	816 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	817 }
1408 ceb5c2fec4f1 Fixed some preprocessor mangling Sam Lantinga <slouken@libsdl.org> parents: 1406 diff changeset	818
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	819
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	820 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	821 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	822 const SDL_AudioSpec * desired, SDL_AudioSpec * obtained,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	823 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	824 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	825 SDL_AudioDeviceID id = 0;
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	826 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	827 SDL_AudioDevice *device;
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	828 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	829 int i = 0;
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	830
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	831 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	832 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	833 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	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
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 ((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	837 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	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
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	841 if (!obtained) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	842 obtained = &_obtained;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	843 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	844 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	845 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	846 }
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 /* 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	849 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	850 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	851 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	852
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	853 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	854 * 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	855 * 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	856 * 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	857 * 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	858 *
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	859 * 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	860 * 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	861 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	862
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	863 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	864 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	865 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	866 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	867 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	868 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	869
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	870 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	871 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	872 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	873 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	874 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	875 }
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 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	879 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	880 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	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 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	884
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	885 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	886 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	887 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	888 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	889 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	890 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	891 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	892
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	893 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	894 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	895 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	896 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	897 }
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	898 SDL_memset(device, '\0', sizeof(SDL_AudioDevice));
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	899 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	900 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	901 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	902 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	903
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	904 /* 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	905 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	906 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	907 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	908 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	909 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	910 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	911 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	912 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	913
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	914 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	915 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	916 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	917 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	918 device->opened = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	919
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	920 /* 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	921 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	922 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	923 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	924 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	925 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	926 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	927
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	928 /* 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	929 if (device->spec.samples != obtained->samples) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	930 obtained->samples = device->spec.samples;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	931 SDL_CalculateAudioSpec(obtained);
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	932 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	933
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	934 /* 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	935 build_cvt = SDL_FALSE;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	936 if (obtained->freq != device->spec.freq) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	937 if (allowed_changes & SDL_AUDIO_ALLOW_FREQUENCY_CHANGE) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	938 obtained->freq = device->spec.freq;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	939 } else {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	940 build_cvt = SDL_TRUE;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	941 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	942 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	943 if (obtained->format != device->spec.format) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	944 if (allowed_changes & SDL_AUDIO_ALLOW_FORMAT_CHANGE) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	945 obtained->format = device->spec.format;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	946 } else {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	947 build_cvt = SDL_TRUE;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	948 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	949 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	950 if (obtained->channels != device->spec.channels) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	951 if (allowed_changes & SDL_AUDIO_ALLOW_CHANNELS_CHANGE) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	952 obtained->channels = device->spec.channels;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	953 } else {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	954 build_cvt = SDL_TRUE;
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	955 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	956 }
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	957 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	958 /* 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	959 if (SDL_BuildAudioCVT(&device->convert,
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	960 obtained->format, obtained->channels,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	961 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	962 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	963 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	964 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	965 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	966 }
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 if (device->convert.needed) {
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	968 device->convert.len = (int) (((double) obtained->size) /
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	969 device->convert.len_ratio);
2053 716cf90f24a0 1.3 branch version of revision 2878. Ryan C. Gordon <icculus@icculus.org> parents: 2049 diff changeset	970
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 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	972 (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	973 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	974 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	975 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	976 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	977 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	978 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	979 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	980 }
2049 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 /* Find an available device ID and store the structure... */
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	983 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	984 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	985 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	986 break;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	987 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	988 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	989
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	990 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	991 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	992 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	993 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	994 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	995
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	996 /* 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	997 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	998 /* 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	999 /* !!! FIXME: this is nasty. */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1379 diff changeset	1000 #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	1001 #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	1002 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	1003 #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	1004 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	1005 #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	1006 if (device->thread == NULL) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1007 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	1008 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	1009 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	1010 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1011 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1012
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1013 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	1014 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1015
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1016
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1017 int
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1018 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	1019 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1020 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	1021
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1022 /* 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	1023 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	1024 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	1025 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	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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1028
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 /* 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	1030 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	1031 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	1032 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	1033 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1034
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1035 if (obtained) {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1036 id = open_audio_device(NULL, 0, desired, obtained,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1037 SDL_AUDIO_ALLOW_ANY_CHANGE, 1);
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1038 } else {
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1039 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	1040 }
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1041 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	1042 SDL_CloseAudioDevice(id);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1043 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	1044 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	1045 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1046
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1047 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	1048 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1049
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1050 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	1051 SDL_OpenAudioDevice(const char *device, int iscapture,
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1052 const SDL_AudioSpec * desired, SDL_AudioSpec * obtained,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1053 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	1054 {
2866 e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1055 return open_audio_device(device, iscapture, desired, obtained,
e532417a6977 Fixed SDL 1.2 compatibility problem. Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	1056 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	1057 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1058
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1059 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	1060 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	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 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	1063 SDL_audiostatus status = SDL_AUDIO_STOPPED;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1064 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	1065 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	1066 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	1067 } 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	1068 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	1069 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1070 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1071 return (status);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1072 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1073
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1074
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_audiostatus
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1076 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	1077 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1078 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	1079 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1080
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1081 void
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_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	1083 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1084 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	1085 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	1086 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	1087 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1088 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1089
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	1090 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	1091 SDL_PauseAudio(int pause_on)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1092 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1093 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	1094 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1095
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1096
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1097 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1098 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	1099 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1100 /* 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	1101 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	1102 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	1103 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	1104 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1105 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1106
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	1107 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	1108 SDL_LockAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1109 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1110 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	1111 }
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 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1114 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	1115 {
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	1116 /* 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	1117 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	1118 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	1119 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	1120 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1121 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1122
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	1123 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	1124 SDL_UnlockAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1125 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1126 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	1127 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1128
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1129 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1130 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	1131 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1132 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	1133 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	1134 close_audio_device(device);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1135 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	1136 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1137 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1138
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	1139 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	1140 SDL_CloseAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1141 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1142 SDL_CloseAudioDevice(1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1143 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1144
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	1145 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	1146 SDL_AudioQuit(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1147 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1148 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	1149 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	1150 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	1151 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1152
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1153 /* 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	1154 current_audio.impl.Deinitialize();
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1155 SDL_memset(&current_audio, '\0', sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1156 SDL_memset(open_devices, '\0', sizeof(open_devices));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1157 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1158
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1159 #define NUM_FORMATS 10
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1160 static int format_idx;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1161 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	1162 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	1163 {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	1164 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	1165 {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	1166 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	1167 {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	1168 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	1169 {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	1170 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	1171 {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	1172 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	1173 {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	1174 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	1175 {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	1176 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	1177 {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	1178 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	1179 {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	1180 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	1181 {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	1182 AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1183 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1184
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1185 SDL_AudioFormat
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1186 SDL_FirstAudioFormat(SDL_AudioFormat format)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1187 {
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	1188 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	1189 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	1190 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	1191 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1192 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1193 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	1194 return (SDL_NextAudioFormat());
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1195 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1196
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1197 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	1198 SDL_NextAudioFormat(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1199 {
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	1200 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	1201 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	1202 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1203 return (format_list[format_idx][format_idx_sub++]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1204 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1205
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	1206 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	1207 SDL_CalculateAudioSpec(SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1208 {
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	1209 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	1210 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	1211 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	1212 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	1213 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	1214 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	1215 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	1216 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1217 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	1218 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	1219 spec->size *= spec->samples;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1220 }
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	1221
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1222
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1223 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1224 * 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	1225 * 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	1226 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1227 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1228 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	1229 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1230 /* 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	1231 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	1232 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	1233 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	1234 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	1235 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	1236 } else {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1237 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	1238 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1239 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	1240 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1241 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1242
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	1243 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/SDL_audio.c @ 2984:0b160c970b7e