sdl-ios-xcode: src/audio/SDL

annotate src/audio/SDL_audio.c @ 2728:2768bd7281e0

Fixed Visual Studio compilation problems

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 26 Aug 2008 07:34:49 +0000
parents	f8f68f47285a
children	204be4fc2726

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1204 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 148 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1379 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 /* Allow access to a raw mixing buffer */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #include "SDL.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 #include "SDL_audio_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #include "SDL_audiomem.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 #include "SDL_sysaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	31 #define _THIS SDL_AudioDevice *this
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	32
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	33 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	34 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	35
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	36 /* !!! 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	37 #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	38 #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	39
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 * 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	43 * 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	44 * 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	45 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	46 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	47 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	48 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	49 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	50 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	51 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	52 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	53 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	54 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	55 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	56 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	57 extern AudioBootStrap DSOUND_bootstrap;
2070 dbfa1ebd73b0 Fixed building of Windows waveout audio. Ryan C. Gordon <icculus@icculus.org> parents: 2060 diff changeset	58 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	59 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	60 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	61 extern AudioBootStrap COREAUDIO_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 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	63 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	64 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	65 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	66 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	67 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	68 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	69 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	70 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	71 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	72 extern AudioBootStrap DART_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
1190 173c063d4f55 OS/2 port! Ryan C. Gordon <icculus@icculus.org> parents: 955 diff changeset	74
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 /* Available audio drivers */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 static AudioBootStrap *bootstrap[] = {
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: 1562 diff changeset	77 #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	78 &BSD_AUDIO_bootstrap,
94 ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev Sam Lantinga <slouken@lokigames.com> parents: 68 diff changeset	79 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	80 #if SDL_AUDIO_DRIVER_OSS
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	81 &DSP_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	82 &DMA_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	83 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	84 #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	85 &ALSA_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86 #endif
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	87 #if SDL_AUDIO_DRIVER_PULSEAUDIO
2274 aedfcdeb69b6 indent Sam Lantinga <slouken@libsdl.org> parents: 2271 diff changeset	88 &PULSEAUDIO_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	89 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	90 #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	91 &QNXNTOAUDIO_bootstrap,
663 8bedd6d61642 Date: Sat, 2 Aug 2003 16:22:51 +0300 Sam Lantinga <slouken@libsdl.org> parents: 654 diff changeset	92 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	93 #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	94 &SUNAUDIO_bootstrap,
148 8758b8d42cd9 Audio subsystem no longer assumes sun audio API on UNIX systems Sam Lantinga <slouken@libsdl.org> parents: 121 diff changeset	95 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	96 #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	97 &DMEDIA_bootstrap,
35 d3bc792e136d Added detection of Open Sound System on Solaris x86 Sam Lantinga <slouken@lokigames.com> parents: 21 diff changeset	98 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	99 #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	100 &ARTS_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	101 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	102 #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	103 &ESD_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	104 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	105 #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	106 &NAS_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	108 #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	109 &DSOUND_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 #endif
2070 dbfa1ebd73b0 Fixed building of Windows waveout audio. Ryan C. Gordon <icculus@icculus.org> parents: 2060 diff changeset	111 #if SDL_AUDIO_DRIVER_WINWAVEOUT
dbfa1ebd73b0 Fixed building of Windows waveout audio. Ryan C. Gordon <icculus@icculus.org> parents: 2060 diff changeset	112 &WINWAVEOUT_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113 #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	114 #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	115 &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	116 #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	117 #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	118 &BEOSAUDIO_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	120 #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	121 &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	122 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	123 #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	124 &SNDMGR_bootstrap,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	125 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	126 #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	127 &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	128 &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	129 &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	130 &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	131 &MINTAUDIO_DMA8_bootstrap,
398 d219b0e02f5f Added Atari audio support (thanks Patrice!) Sam Lantinga <slouken@libsdl.org> parents: 322 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_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	134 &DISKAUD_bootstrap,
68 ac6645260d31 Added an audio driver that writes to disk (thanks Ryan!) Sam Lantinga <slouken@lokigames.com> parents: 38 diff changeset	135 #endif
1532 30f189cdd82b Implemented dummy audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 1487 diff changeset	136 #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	137 &DUMMYAUD_bootstrap,
1532 30f189cdd82b Implemented dummy audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 1487 diff changeset	138 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	139 #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	140 &DCAUD_bootstrap,
509 dad72daf44b3 Added initial support for Dreamcast (thanks HERO!) Sam Lantinga <slouken@libsdl.org> parents: 398 diff changeset	141 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	142 #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	143 &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	144 #endif
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	145 #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	146 &DART_bootstrap,
1190 173c063d4f55 OS/2 port! Ryan C. Gordon <icculus@icculus.org> parents: 955 diff changeset	147 #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	148 NULL
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149 };
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	150
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	151 static SDL_AudioDevice *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	152 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	153 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	154 id--;
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	155 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	156 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	157 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	158 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	159
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	160 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	161 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	162
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	163
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	164 /* 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	165 static int
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	166 SDL_AudioDetectDevices_Default(int iscapture)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	167 {
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	168 return -1;
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	169 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	170 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	171 SDL_AudioThreadInit_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	172 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	173 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	174 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	175 SDL_AudioWaitDevice_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	176 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	177 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	178 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	179 SDL_AudioPlayDevice_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	180 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	181 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	182 static Uint8 *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	183 SDL_AudioGetDeviceBuf_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	184 {
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	185 return NULL;
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	186 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	187 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	188 SDL_AudioWaitDone_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	189 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	190 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	191 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	192 SDL_AudioCloseDevice_Default(_THIS)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	193 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	194 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	195 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	196 SDL_AudioDeinitialize_Default(void)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	197 { /* no-op. */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	198 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	199
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	200 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	201 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	202 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	203 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	204 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	205
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	206 static const char *
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	207 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	208 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	209 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	210 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	211 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	213 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	214 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	215 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	216 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	217 return;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	218 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	219 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	220 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	221
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	222 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	223 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	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 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	226 return;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	227 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	228 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	229 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	230
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	232 static void
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	233 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	234 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	235 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	236 * 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	237 * 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	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
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	240 #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	241 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	242 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	243 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	244 FILL_STUB(DetectDevices);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	245 FILL_STUB(GetDeviceName);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	246 FILL_STUB(OpenDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	247 FILL_STUB(ThreadInit);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	248 FILL_STUB(WaitDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	249 FILL_STUB(PlayDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	250 FILL_STUB(GetDeviceBuf);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	251 FILL_STUB(WaitDone);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	252 FILL_STUB(CloseDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	253 FILL_STUB(LockDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	254 FILL_STUB(UnlockDevice);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	255 FILL_STUB(Deinitialize);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	256 #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	257 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	258
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	259 /* 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	260 /* 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	261 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	262 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	263 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	264 int i;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	265
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	266 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	267 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	268 ++stream->write_pos;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	269 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	270 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	271
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	272 /* 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	273 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	274 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	275 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	276 int i;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	277
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	278 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	279 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	280 ++stream->read_pos;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	281 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	282 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	283
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	284 int
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	285 SDL_StreamLength(SDL_AudioStreamer * stream)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	286 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	287 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	288 }
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 /* 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	291 int
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	292 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	293 {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	294 /* First try to allocate the buffer */
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	295 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	296 if (stream->buffer == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	297 return -1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	298 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	299
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	300 stream->max_len = max_len;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	301 stream->read_pos = 0;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	302 stream->write_pos = 0;
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 /* Zero out the buffer */
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	305 SDL_memset(stream->buffer, silence, max_len);
2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	306
2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	307 return 0;
2716 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 /* 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	311 void
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	312 SDL_StreamDeinit(SDL_AudioStreamer * stream)
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 if (stream->buffer != NULL) {
2728 2768bd7281e0 Fixed Visual Studio compilation problems Sam Lantinga <slouken@libsdl.org> parents: 2716 diff changeset	315 SDL_free(stream->buffer);
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	316 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	317 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	318
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	320 /* 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	321 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	322 SDL_RunAudio(void *devicep)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	324 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	325 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	326 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	327 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	328 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	329 int silence;
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	330 int stream_max_len;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	331
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	332 /* 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	333 Uint8 *istream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	334 int istream_len;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	335
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	336 /* 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	337 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	338 current_audio.impl.ThreadInit(device);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	339
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	340 /* 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	341 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	342 udata = device->spec.userdata;
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	343
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	344 /* By default do not stream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	345 device->use_streamer = 0;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	346
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	347 if (device->convert.needed) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	348 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	349 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	350 } 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	351 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	352 }
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	353
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	354 /* If the result of the conversion alters the length, i.e. resampling is being used, use the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	355 if (device->convert.len_mult != 1 \|\| device->convert.len_div != 1) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	356 /* The streamer's maximum length should be twice whichever is larger: spec.size or len_cvt */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	357 stream_max_len = 2 * device->spec.size;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	358 if (device->convert.len_mult > device->convert.len_div) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	359 stream_max_len *= device->convert.len_mult;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	360 stream_max_len /= device->convert.len_div;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	361 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	362 if (SDL_StreamInit(&device->streamer, stream_max_len, silence) <
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	363 0)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	364 return -1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	365 device->use_streamer = 1;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	366
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	367 /* istream_len should be the length of what we grab from the callback and feed to conversion,
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	368 so that we get close to spec_size. I.e. we want device.spec_size = istream_len * u / d
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	369 */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	370 istream_len =
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	371 device->spec.size * device->convert.len_div /
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	372 device->convert.len_mult;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	373 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	374
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	375 /* stream_len = device->convert.len; */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	376 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	377 } 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	378 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	379 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	380 }
1561 c724c4a99759 Try to fill the hardware audio buffer immediately. Ryan C. Gordon <icculus@icculus.org> parents: 1532 diff changeset	381
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	382 /* 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	383 if (device->use_streamer == 1) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	384 /* 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	385 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	386 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	387 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	388 - 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	389 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	390 - 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	391 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	392 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	393 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	394 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	395 */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	396 while (device->enabled) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	397 /* 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	398 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	399 /* Set up istream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	400 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	401 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	402 istream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	403 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	404 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	405 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	406 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	407 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	408 if (istream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	409 istream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	410 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	411 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	412
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	413 /* 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	414 if (!device->paused) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	415 SDL_mutexP(device->mixer_lock);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	416 (*fill) (udata, istream, istream_len);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	417 SDL_mutexV(device->mixer_lock);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	418 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	419
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	420 /* 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	421 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	422 SDL_ConvertAudio(&device->convert);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	423 if (istream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	424 istream = device->fake_stream;
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 /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	427 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	428 device->convert.len_cvt);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	429 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	430 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	431 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	432 }
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	433
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	434 /* 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	435 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	436 /* Set up the output stream */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	437 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	438 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	439 stream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	440 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	441 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	442 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	443 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	444 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	445 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	446 stream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	447 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	448 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	449
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	450 /* Now read from the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	451 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	452
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	453 /* 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	454 if (stream != device->fake_stream) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	455 current_audio.impl.PlayDevice(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	456 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	457
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	458 /* 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	459 if (stream == device->fake_stream) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	460 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	461 device->spec.freq);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	462 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	463 current_audio.impl.WaitDevice(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	464 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	465 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	466
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	467 }
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	468 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	469 /* Otherwise, do not use the streamer. This is the old code. */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	470
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	471 /* Loop, filling the audio buffers */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	472 while (device->enabled) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	473
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	474 /* 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	475 if (device->convert.needed) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	476 if (device->convert.buf) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	477 stream = device->convert.buf;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	478 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	479 continue;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	480 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	481 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	482 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	483 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	484 stream = device->fake_stream;
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	485 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	486 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	487
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	488 if (!device->paused) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	489 SDL_mutexP(device->mixer_lock);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	490 (*fill) (udata, stream, stream_len);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	491 SDL_mutexV(device->mixer_lock);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	492 }
1562 1d487a3fab41 Fixed bug #18 Sam Lantinga <slouken@libsdl.org> parents: 1561 diff changeset	493
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	494 /* Convert the audio if necessary */
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 SDL_ConvertAudio(&device->convert);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	497 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	498 if (stream == NULL) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	499 stream = device->fake_stream;
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 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	502 device->convert.len_cvt);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	503 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	504
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	505 /* 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	506 if (stream != device->fake_stream) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	507 current_audio.impl.PlayDevice(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	508 }
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	509
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	510 /* 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	511 if (stream == device->fake_stream) {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	512 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	513 } else {
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	514 current_audio.impl.WaitDevice(device);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	515 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	516 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	517 }
1562 1d487a3fab41 Fixed bug #18 Sam Lantinga <slouken@libsdl.org> parents: 1561 diff changeset	518
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	519 /* 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	520 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	521
2716 f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	522 /* If necessary, deinit the streamer */
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	523 if (device->use_streamer == 1)
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	524 SDL_StreamDeinit(&device->streamer);
f8f68f47285a Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2274 diff changeset	525
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	526 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	527 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	528
322 fd93a09655e3 The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	529
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	530 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	531 SDL_ParseAudioFormat(const char *string)
1794 5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	532 {
2076 939420dee849 Use SDL_strcmp(), not strcmp(). Ryan C. Gordon <icculus@icculus.org> parents: 2070 diff changeset	533 #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	534 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	535 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	536 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	537 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	538 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	539 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	540 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	541 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	542 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	543 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	544 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	545 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	546 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	547 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	548 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	549 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	550 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	551 CHECK_FMT_STRING(F32);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	552 #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	553 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	554 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	555
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	556 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	557 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	558 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	559 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	560 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	561
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	562 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	563 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	564 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	565 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	566 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	567 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	568 return (NULL);
1794 5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	569 }
5605a9820134 Fixed bug #137 Sam Lantinga <slouken@libsdl.org> parents: 1769 diff changeset	570
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	571 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	572 SDL_AudioInit(const char *driver_name)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	573 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	574 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	575 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	576 int tried_to_init = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	577
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	578 if (SDL_WasInit(SDL_INIT_AUDIO)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	579 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	580 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	581
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	582 SDL_memset(&current_audio, '\0', sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	583 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	584
1895 c121d94672cb SDL 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 /* 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	586 if (driver_name == NULL) {
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit() Sam Lantinga <slouken@libsdl.org> parents: 1903 diff changeset	587 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	588 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	589
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	590 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	591 /* 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	592 const AudioBootStrap *backend = bootstrap[i];
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	593 if (((driver_name) && (SDL_strcasecmp(backend->name, driver_name))) \|\|
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	594 ((!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	595 continue;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	596 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	597
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	598 tried_to_init = 1;
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	599 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	600 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	601 current_audio.desc = backend->desc;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	602 initialized = backend->init(&current_audio.impl);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	603 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	604
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	605 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	606 /* 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	607 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	608 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	609 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	610 } 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	611 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	612 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	613 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	614
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	615 SDL_memset(&current_audio, 0, sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	616 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	617 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	618
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	619 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	620
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	621 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	622 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	623
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	624 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	625 * 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	626 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	627 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	628 SDL_GetCurrentAudioDriver()
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	629 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	630 return current_audio.name;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	631 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	632
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	633
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	634 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	635 SDL_GetNumAudioDevices(int iscapture)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	636 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	637 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	638 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	639 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	640 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	641 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	642 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	643
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	644 if ((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	645 return 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	646 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	647
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	648 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	649 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	650 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	651
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	652 return 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	653 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	654
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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 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	657 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	658 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	659 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	660 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	661 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	662 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	663
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	664 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	665 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	666 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	667 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	668
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	669 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	670 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	671 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	672 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	673
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	674 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	675 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	676 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	677
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	678 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	679 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	680 }
262 ba5363e21df8 Don't allow multiple audio opens to succeed (until SDL 1.3) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	681
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	682 return 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	683 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	684
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	685
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	686 static void
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	687 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	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 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	690 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	691 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	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 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	694 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	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 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	697 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	698 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	699 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	700 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	701 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	702 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	703 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	704 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	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 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	707 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	708
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	709
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 * 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	712 * 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	713 * 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	714 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	715 static int
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	716 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	717 {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	718 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	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 (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	721 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	722 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	723 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	724
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	725 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	726 const char *env = SDL_getenv("SDL_AUDIO_FREQUENCY");
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	727 if ((!env) \|\| ((prepared->freq = SDL_atoi(env)) == 0)) {
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	728 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	729 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	730 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	731
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	732 if (orig->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	733 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	734 if ((!env) \|\| ((prepared->format = SDL_ParseAudioFormat(env)) == 0)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	735 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	736 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	737 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	738
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	739 switch (orig->channels) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	740 case 0:{
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	741 const char *env = SDL_getenv("SDL_AUDIO_CHANNELS");
2141 e1a70460c354 stupid indent Sam Lantinga <slouken@libsdl.org> parents: 2130 diff changeset	742 if ((!env) \|\| ((prepared->channels = (Uint8) SDL_atoi(env)) == 0)) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	743 prepared->channels = 2; /* a reasonable default */
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	744 }
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	745 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	746 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	747 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	748 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	749 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	750 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	751 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	752 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	753 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	754 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	755 }
2049 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 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	758 const char *env = SDL_getenv("SDL_AUDIO_SAMPLES");
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	759 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	760 /* 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	761 /* !!! 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	762 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	763 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	764 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	765 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	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 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	768 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	769 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	770
1895 c121d94672cb SDL 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 /* 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	772 SDL_CalculateAudioSpec(prepared);
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	773
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	774 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	775 }
1408 ceb5c2fec4f1 Fixed some preprocessor mangling Sam Lantinga <slouken@libsdl.org> parents: 1406 diff changeset	776
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	777
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	778 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	779 open_audio_device(const char *devname, int iscapture,
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	780 const SDL_AudioSpec * _desired, SDL_AudioSpec * obtained,
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	781 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	782 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	783 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	784 SDL_AudioSpec desired;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	785 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	786 int i = 0;
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	787
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 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	789 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	790 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	791 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	792
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	793 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	794 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	795 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	796 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	797
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	798 if (!prepare_audiospec(_desired, &desired)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	799 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	800 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	801
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	802 /* 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	803 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	804 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	805 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	806
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	807 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	808 * 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	809 * 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	810 * 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	811 * 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	812 *
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	813 * 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	814 * 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	815 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	816
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	817 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	818 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	819 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	820 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	821 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	822 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	823
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	824 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	825 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	826 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	827 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	828 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	829 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	830 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	831
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	832 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	833 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	834 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	835 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	836 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	837 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	838
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	839 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	840 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	841 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	842 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	843 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	844 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	845 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	846
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	847 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	848 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	849 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	850 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	851 }
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	852 SDL_memset(device, '\0', sizeof(SDL_AudioDevice));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	853 SDL_memcpy(&device->spec, &desired, 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	854 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	855 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	856 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	857
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	858 /* 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	859 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	860 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	861 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	862 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	863 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	864 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	865 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	866 }
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 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	869 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	870 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	871 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	872 device->opened = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	873
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	874 /* If the audio driver changes the buffer size, accept it */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	875 if (device->spec.samples != desired.samples) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	876 desired.samples = device->spec.samples;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	877 SDL_CalculateAudioSpec(&device->spec);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	878 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	879
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	880 /* 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	881 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	882 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	883 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	884 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	885 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	886 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	887
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	888 /* See if we need to do any conversion */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	889 if (obtained != 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	890 SDL_memcpy(obtained, &device->spec, sizeof(SDL_AudioSpec));
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	891 } else if (desired.freq != device->spec.freq \|\|
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	892 desired.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	893 desired.channels != device->spec.channels) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	894 /* 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	895 if (SDL_BuildAudioCVT(&device->convert,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	896 desired.format, desired.channels,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	897 desired.freq,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	898 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	899 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	900 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	901 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	902 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	903 if (device->convert.needed) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	904 device->convert.len = (int) (((double) desired.size) /
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	905 device->convert.len_ratio);
2053 716cf90f24a0 1.3 branch version of revision 2878. Ryan C. Gordon <icculus@icculus.org> parents: 2049 diff changeset	906
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	907 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	908 (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	909 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	910 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	911 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	912 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	913 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	914 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	915 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	916 }
2049 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 /* Find an available device ID and store the structure... */
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	919 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	920 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	921 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	922 break;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	923 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	924 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	925
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	926 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	927 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	928 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	929 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	930 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	931
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	932 /* 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	933 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	934 /* 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	935 /* !!! FIXME: this is nasty. */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1379 diff changeset	936 #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	937 #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	938 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	939 #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	940 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	941 #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	942 if (device->thread == NULL) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	943 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	944 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	945 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	946 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	947 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	948
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	949 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	950 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	951
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	952
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	953 int
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	954 SDL_OpenAudio(const SDL_AudioSpec * desired, SDL_AudioSpec * obtained)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	955 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	956 SDL_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	957
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	958 /* 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	959 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	960 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	961 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	962 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	963 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	964
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	965 /* 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	966 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	967 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	968 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	969 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	970
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	971 id = open_audio_device(NULL, 0, desired, obtained, 1);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	972 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	973 SDL_CloseAudioDevice(id);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	974 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	975 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	976 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	977
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	978 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	979 }
21 75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele) Sam Lantinga <slouken@lokigames.com> parents: 0 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 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	982 SDL_OpenAudioDevice(const char *device, int iscapture,
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	983 const SDL_AudioSpec * desired, SDL_AudioSpec * obtained)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	984 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	985 return open_audio_device(device, iscapture, desired, obtained, 2);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	986 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	987
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	988 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	989 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	990 {
2049 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_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	992 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	993 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	994 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	995 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	996 } 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	997 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	998 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	999 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1000 return (status);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1001 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1002
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1003
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1004 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	1005 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	1006 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1007 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	1008 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1009
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1010 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1011 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	1012 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1013 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	1014 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	1015 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	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 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1018
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1019 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	1020 SDL_PauseAudio(int pause_on)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1021 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1022 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	1023 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1024
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1025
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1026 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1027 SDL_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	1028 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1029 /* 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	1030 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	1031 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	1032 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	1033 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1034 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1035
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1036 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	1037 SDL_LockAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1038 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1039 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	1040 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1041
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 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1043 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	1044 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1045 /* 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	1046 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	1047 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	1048 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	1049 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1050 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1051
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1052 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	1053 SDL_UnlockAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1054 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1055 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	1056 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1057
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1058 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1059 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	1060 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1061 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	1062 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	1063 close_audio_device(device);
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1064 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	1065 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1066 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1067
1895 c121d94672cb SDL 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 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	1069 SDL_CloseAudio(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1070 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1071 SDL_CloseAudioDevice(1);
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
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1074 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	1075 SDL_AudioQuit(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1076 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1077 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	1078 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	1079 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	1080 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1081
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1082 /* 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	1083 current_audio.impl.Deinitialize();
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1084 SDL_memset(&current_audio, '\0', sizeof(current_audio));
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2053 diff changeset	1085 SDL_memset(open_devices, '\0', sizeof(open_devices));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1086 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1087
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1088 #define NUM_FORMATS 10
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1089 static int format_idx;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1090 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	1091 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	1092 {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	1093 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	1094 {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	1095 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	1096 {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	1097 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	1098 {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	1099 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	1100 {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	1101 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	1102 {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	1103 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	1104 {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	1105 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	1106 {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	1107 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	1108 {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	1109 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	1110 {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	1111 AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1112 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1113
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1114 SDL_AudioFormat
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1115 SDL_FirstAudioFormat(SDL_AudioFormat format)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1116 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1117 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	1118 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	1119 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	1120 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1121 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1122 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	1123 return (SDL_NextAudioFormat());
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1124 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1125
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1978 diff changeset	1126 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	1127 SDL_NextAudioFormat(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1128 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1129 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	1130 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	1131 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1132 return (format_list[format_idx][format_idx_sub++]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1133 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1134
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1135 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	1136 SDL_CalculateAudioSpec(SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1137 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1138 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	1139 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	1140 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	1141 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	1142 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	1143 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	1144 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	1145 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1146 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	1147 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	1148 spec->size *= spec->samples;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1149 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1150
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1151
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1152 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1153 * 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	1154 * 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	1155 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1156 void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1157 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	1158 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1159 /* 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	1160 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	1161 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	1162 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	1163 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	1164 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	1165 } else {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1166 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	1167 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1168 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	1169 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1170 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2045 diff changeset	1171
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1794 diff changeset	1172 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/SDL_audio.c @ 2728:2768bd7281e0