sdl-ios-xcode: src/audio/macosx/SDL

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

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

author	Ryan C. Gordon <icculus@icculus.org>
date	Tue, 17 Oct 2006 09:09:21 +0000
parents	29e83f221c62
children

rev	line source
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> 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: 936 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> 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: 936 diff changeset	6 modify it under the terms of the GNU Lesser General Public
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> 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: 936 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> 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: 936 diff changeset	13 Lesser General Public License for more details.
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 936 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: 936 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: 936 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	24 #include <CoreAudio/CoreAudio.h>
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25 #include <AudioUnit/AudioUnit.h>
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 #include "SDL_audio.h"
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	28 #include "../SDL_audio_c.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	29 #include "../SDL_sysaudio.h"
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 #include "SDL_coreaudio.h"
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	32 #define DEBUG_COREAUDIO 0
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	34 typedef struct COREAUDIO_DeviceList
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	35 {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	36 AudioDeviceID id;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	37 const char *name;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	38 } COREAUDIO_DeviceList;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	39
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	40 static COREAUDIO_DeviceList *inputDevices = NULL;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	41 static int inputDeviceCount = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	42 static COREAUDIO_DeviceList *outputDevices = NULL;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	43 static int outputDeviceCount = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	44
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	45 static void
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	46 free_device_list(COREAUDIO_DeviceList *devices, int devCount)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	47 {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	48 if (*devices) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	49 int i = *devCount;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	50 while (i--)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	51 SDL_free((void ) (devices)[i].name);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	52 SDL_free(*devices);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	53 *devices = NULL;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	54 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	55 *devCount = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	56 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	57
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	58
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	59 static void
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	60 build_device_list(int iscapture, COREAUDIO_DeviceList *devices, int devCount)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	61 {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	62 Boolean outWritable = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	63 OSStatus result = noErr;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	64 UInt32 size = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	65 AudioDeviceID *devs = NULL;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	66 UInt32 i = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	67 UInt32 max = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	68
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	69 free_device_list(devices, devCount);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	70
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	71 result = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	72 &size, &outWritable);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	73
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	74 if (result != kAudioHardwareNoError)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	75 return;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	76
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	77 devs = (AudioDeviceID *) alloca(size);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	78 if (devs == NULL)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	79 return;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	80
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	81 max = size / sizeof (AudioDeviceID);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	82 devices = (COREAUDIO_DeviceList ) SDL_malloc(max * sizeof (**devices));
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	83 if (*devices == NULL)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	84 return;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	85
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	86 result = AudioHardwareGetProperty(kAudioHardwarePropertyDevices,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	87 &size, devs);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	88 if (result != kAudioHardwareNoError)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	89 return;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	90
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	91 for (i = 0; i < max; i++) {
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	92 CFStringRef cfstr = NULL;
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	93 char *ptr = NULL;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	94 AudioDeviceID dev = devs[i];
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	95 AudioBufferList *buflist = NULL;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	96 int usable = 0;
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	97 CFIndex len = 0;
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	98
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	99 result = AudioDeviceGetPropertyInfo(dev, 0, iscapture,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	100 kAudioDevicePropertyStreamConfiguration,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	101 &size, &outWritable);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	102 if (result != noErr)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	103 continue;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	104
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	105 buflist = (AudioBufferList *) SDL_malloc(size);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	106 if (buflist == NULL)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	107 continue;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	108
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	109 result = AudioDeviceGetProperty(dev, 0, iscapture,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	110 kAudioDevicePropertyStreamConfiguration,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	111 &size, buflist);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	112
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	113 if (result == noErr) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	114 UInt32 j;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	115 for (j = 0; j < buflist->mNumberBuffers; j++) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	116 if (buflist->mBuffers[j].mNumberChannels > 0) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	117 usable = 1;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	118 break;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	119 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	120 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	121 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	122
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	123 SDL_free(buflist);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	124
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	125 if (!usable)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	126 continue;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	127
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	128 size = sizeof (CFStringRef);
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	129 result = AudioDeviceGetProperty(dev, 0, iscapture,
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	130 kAudioObjectPropertyName,
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	131 &size, &cfstr);
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	132
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	133 if (result != kAudioHardwareNoError)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	134 continue;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	135
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	136 len = CFStringGetMaximumSizeForEncoding(CFStringGetLength(cfstr),
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	137 kCFStringEncodingUTF8);
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	138
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	139 ptr = (char *) SDL_malloc(len + 1);
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	140 usable = ( (ptr != NULL) &&
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	141 (CFStringGetCString(cfstr,ptr,len+1,kCFStringEncodingUTF8)) );
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	142
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	143 CFRelease(cfstr);
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	144
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	145 if (usable) {
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	146 len = strlen(ptr);
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	147 /* Some devices have whitespace at the end...trim it. */
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	148 while ((len > 0) && (ptr[len-1] == ' ')) {
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	149 len--;
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	150 }
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	151 usable = (len > 0);
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	152 }
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	153
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	154 if (!usable) {
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	155 SDL_free(ptr);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	156 } else {
3788 7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	157 ptr[len] = '\0';
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	158
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	159 #if DEBUG_COREAUDIO
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	160 printf("COREAUDIO: Found %s device #%d: '%s' (devid %d)\n",
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	161 ((iscapture) ? "capture" : "output"),
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	162 (int) *devCount, ptr, (int) dev);
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	163 #endif
7006b176ef4f More work on the 1.3 CoreAudio code. Ryan C. Gordon <icculus@icculus.org> parents: 3787 diff changeset	164
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	165 (devices)[devCount].id = dev;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	166 (devices)[devCount].name = ptr;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	167 (*devCount)++;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	168 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	169 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	170 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	171
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	172 static inline void
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	173 build_device_lists(void)
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	174 {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	175 build_device_list(0, &outputDevices, &outputDeviceCount);
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	176 build_device_list(1, &inputDevices, &inputDeviceCount);
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	177 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	178
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	179
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	180 static inline void
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	181 free_device_lists(void)
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	182 {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	183 free_device_list(&outputDevices, &outputDeviceCount);
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	184 free_device_list(&inputDevices, &inputDeviceCount);
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	185 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	186
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	187
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	188 static int
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	189 find_device_id(const char devname, int iscapture, AudioDeviceID id)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	190 {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	191 int i = ((iscapture) ? inputDeviceCount : outputDeviceCount);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	192 COREAUDIO_DeviceList *devs = ((iscapture) ? inputDevices : outputDevices);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	193 while (i--) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	194 if (SDL_strcmp(devname, devs->name) == 0) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	195 *id = devs->id;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	196 return 1;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	197 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	198 devs++;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	199 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	200
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	201 return 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	202 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	203
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	204
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	205 static int
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	206 COREAUDIO_DetectDevices(int iscapture)
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	207 {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	208 if (iscapture) {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	209 build_device_list(1, &inputDevices, &inputDeviceCount);
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	210 return inputDeviceCount;
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	211 } else {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	212 build_device_list(0, &outputDevices, &outputDeviceCount);
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	213 return outputDeviceCount;
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	214 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	215
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	216 return 0; /* shouldn't ever hit this. */
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	217 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	218
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	219
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	220 static const char *
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	221 COREAUDIO_GetDeviceName(int index, int iscapture)
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	222 {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	223 if ((iscapture) && (index < inputDeviceCount)) {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	224 return inputDevices[index].name;
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	225 } else if ((!iscapture) && (index < outputDeviceCount)) {
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	226 return outputDevices[index].name;
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	227 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	228
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	229 SDL_SetError("No such device");
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	230 return NULL;
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	231 }
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	232
8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	233
3787 8d74a4721ca9 Added deinitialize hook. Ryan C. Gordon <icculus@icculus.org> parents: 3786 diff changeset	234 static void
8d74a4721ca9 Added deinitialize hook. Ryan C. Gordon <icculus@icculus.org> parents: 3786 diff changeset	235 COREAUDIO_Deinitialize(void)
8d74a4721ca9 Added deinitialize hook. Ryan C. Gordon <icculus@icculus.org> parents: 3786 diff changeset	236 {
3790 8f8209f8da6d Added audio device enumeration for 1.3. Ryan C. Gordon <icculus@icculus.org> parents: 3788 diff changeset	237 free_device_lists();
3787 8d74a4721ca9 Added deinitialize hook. Ryan C. Gordon <icculus@icculus.org> parents: 3786 diff changeset	238 }
8d74a4721ca9 Added deinitialize hook. Ryan C. Gordon <icculus@icculus.org> parents: 3786 diff changeset	239
8d74a4721ca9 Added deinitialize hook. Ryan C. Gordon <icculus@icculus.org> parents: 3786 diff changeset	240
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	241 /* The CoreAudio callback */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	242 static OSStatus
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	243 outputCallback(void *inRefCon,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	244 AudioUnitRenderActionFlags *ioActionFlags,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	245 const AudioTimeStamp * inTimeStamp,
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	246 UInt32 inBusNumber, UInt32 inNumberFrames,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	247 AudioBufferList *ioDataList)
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	248 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	249 SDL_AudioDevice this = (SDL_AudioDevice ) inRefCon;
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	250 AudioBuffer *ioData = &ioDataList->mBuffers[0];
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	251 UInt32 remaining, len;
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	252 void *ptr;
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	253
3806 1485d42cf1a0 Removed some FIXMEs that'll probably never actually need fixing. Ryan C. Gordon <icculus@icculus.org> parents: 3799 diff changeset	254 /* Is there ever more than one buffer, and what do you do with it? */
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	255 if (ioDataList->mNumberBuffers != 1) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	256 return noErr;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	257 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	258
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259 /* Only do anything if audio is enabled and not 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: 1487 diff changeset	260 if (!this->enabled \|\| this->paused) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	261 SDL_memset(ioData->mData, this->spec.silence, ioData->mDataByteSize);
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	262 return 0;
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	263 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	264
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	265 /* No SDL conversion should be needed here, ever, since we accept
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266 any input format in OpenAudio, and leave the conversion to CoreAudio.
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 */
1338 604d73db6802 Removed uses of stdlib.h and string.h Sam Lantinga <slouken@libsdl.org> parents: 1336 diff changeset	268 /*
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	269 assert(!this->convert.needed);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	270 assert(this->spec.channels == ioData->mNumberChannels);
1338 604d73db6802 Removed uses of stdlib.h and string.h Sam Lantinga <slouken@libsdl.org> parents: 1336 diff changeset	271 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	272
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	273 remaining = ioData->mDataByteSize;
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	274 ptr = ioData->mData;
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	275 while (remaining > 0) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	276 if (this->hidden->bufferOffset >= this->hidden->bufferSize) {
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	277 /* Generate the data */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	278 SDL_memset(this->hidden->buffer, this->spec.silence,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	279 this->hidden->bufferSize);
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	280 SDL_mutexP(this->mixer_lock);
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	281 (*this->spec.callback) (this->spec.userdata, this->hidden->buffer,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	282 this->hidden->bufferSize);
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	283 SDL_mutexV(this->mixer_lock);
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	284 this->hidden->bufferOffset = 0;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	286
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	287 len = this->hidden->bufferSize - this->hidden->bufferOffset;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	288 if (len > remaining)
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	289 len = remaining;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	290 SDL_memcpy(ptr,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	291 (char *) this->hidden->buffer + this->hidden->bufferOffset,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	292 len);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	293 ptr = (char *) ptr + len;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	294 remaining -= len;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	295 this->hidden->bufferOffset += len;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	296 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	297
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	298 return 0;
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	299 }
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	300
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	301 static OSStatus
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	302 inputCallback(void *inRefCon,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	303 AudioUnitRenderActionFlags *ioActionFlags,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	304 const AudioTimeStamp * inTimeStamp,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	305 UInt32 inBusNumber, UInt32 inNumberFrames,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	306 AudioBufferList *ioData)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	307 {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	308 //err = AudioUnitRender(afr->fAudioUnit, ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, afr->fAudioBuffer);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	309 // !!! FIXME: write me!
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	310 return noErr;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	311 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	312
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	313
3795 589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	314 static void
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	315 COREAUDIO_CloseDevice(_THIS)
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316 {
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	317 if (this->hidden != NULL) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	318 OSStatus result = noErr;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	319 AURenderCallbackStruct callback;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	320 const AudioUnitElement output_bus = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	321 const AudioUnitElement input_bus = 1;
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3795 diff changeset	322 const int iscapture = this->iscapture;
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	323 const AudioUnitElement bus = ((iscapture) ? input_bus : output_bus);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	324 const AudioUnitScope scope = ((iscapture) ? kAudioUnitScope_Output :
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	325 kAudioUnitScope_Input);
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	326
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	327 /* stop processing the audio unit */
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	328 result = AudioOutputUnitStop(this->hidden->audioUnit);
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	329
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	330 /* Remove the input callback */
3830 29e83f221c62 Fixed some things to use SDL C runtime functions. Ryan C. Gordon <icculus@icculus.org> parents: 3816 diff changeset	331 SDL_memset(&callback, '\0', sizeof (AURenderCallbackStruct));
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	332 result = AudioUnitSetProperty(this->hidden->audioUnit,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	333 kAudioUnitProperty_SetRenderCallback,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	334 scope, bus, &callback, sizeof (callback));
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	335
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	336 CloseComponent(this->hidden->audioUnit);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	337
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	338 SDL_free(this->hidden->buffer);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	339 SDL_free(this->hidden);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	340 this->hidden = NULL;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	341 }
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	342 }
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	343
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	344
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	345 #define CHECK_RESULT(msg) \
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	346 if (result != noErr) { \
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	347 COREAUDIO_CloseDevice(this); \
2017 df06e6eb65c6 Fixed macosx audio initialization (passed wrong struct to CoreAudio). Ryan C. Gordon <icculus@icculus.org> parents: 2016 diff changeset	348 SDL_SetError("CoreAudio error (%s): %d", msg, (int) result); \
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	349 return 0; \
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	350 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	351
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	352 static int
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	353 find_device_by_name(_THIS, const char *devname, int iscapture)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	354 {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	355 AudioDeviceID devid = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	356 OSStatus result = noErr;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	357 UInt32 size = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	358 UInt32 alive = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	359 pid_t pid = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	360
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	361 if (devname == NULL) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	362 size = sizeof (AudioDeviceID);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	363 const AudioHardwarePropertyID propid =
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	364 ((iscapture) ? kAudioHardwarePropertyDefaultInputDevice :
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	365 kAudioHardwarePropertyDefaultOutputDevice);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	366
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	367 result = AudioHardwareGetProperty(propid, &size, &devid);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	368 CHECK_RESULT("AudioHardwareGetProperty (default device)");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	369 } else {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	370 if (!find_device_id(devname, iscapture, &devid)) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	371 SDL_SetError("CoreAudio: No such audio device.");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	372 return 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	373 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	374 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	375
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	376 size = sizeof (alive);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	377 result = AudioDeviceGetProperty(devid, 0, iscapture,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	378 kAudioDevicePropertyDeviceIsAlive,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	379 &size, &alive);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	380 CHECK_RESULT("AudioDeviceGetProperty (kAudioDevicePropertyDeviceIsAlive)");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	381
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	382 if (!alive) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	383 SDL_SetError("CoreAudio: requested device exists, but isn't alive.");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	384 return 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	385 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	386
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	387 size = sizeof (pid);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	388 result = AudioDeviceGetProperty(devid, 0, iscapture,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	389 kAudioDevicePropertyHogMode, &size, &pid);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	390
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	391 /* some devices don't support this property, so errors are fine here. */
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	392 if ((result == noErr) && (pid != -1)) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	393 SDL_SetError("CoreAudio: requested device is being hogged.");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	394 return 0;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395 }
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	397 this->hidden->deviceID = devid;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	398 return 1;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	399 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	400
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	401
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	402 static int
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	403 prepare_audiounit(_THIS, const char *devname, int iscapture,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	404 const AudioStreamBasicDescription *strdesc)
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	405 {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	406 OSStatus result = noErr;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	407 AURenderCallbackStruct callback;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	408 ComponentDescription desc;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	409 Component comp = NULL;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	410 int use_system_device = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	411 UInt32 enableIO = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	412 const AudioUnitElement output_bus = 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	413 const AudioUnitElement input_bus = 1;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	414 const AudioUnitElement bus = ((iscapture) ? input_bus : output_bus);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	415 const AudioUnitScope scope = ((iscapture) ? kAudioUnitScope_Output :
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	416 kAudioUnitScope_Input);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	417
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	418 if (!find_device_by_name(this, devname, iscapture)) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	419 SDL_SetError("Couldn't find requested CoreAudio device");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	420 return 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	421 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	422
3830 29e83f221c62 Fixed some things to use SDL C runtime functions. Ryan C. Gordon <icculus@icculus.org> parents: 3816 diff changeset	423 SDL_memset(&desc, '\0', sizeof(ComponentDescription));
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	424 desc.componentType = kAudioUnitType_Output;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	425 desc.componentSubType = kAudioUnitSubType_HALOutput;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	426 desc.componentManufacturer = kAudioUnitManufacturer_Apple;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	427
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	428 comp = FindNextComponent(NULL, &desc);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	429 if (comp == NULL) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	430 SDL_SetError("Couldn't find requested CoreAudio component");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	431 return 0;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	432 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	433
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	434 /* Open & initialize the audio unit */
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	435 result = OpenAComponent(comp, &this->hidden->audioUnit);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	436 CHECK_RESULT("OpenAComponent");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	437
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	438 // !!! FIXME: this is wrong?
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	439 enableIO = ((iscapture) ? 1 : 0);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	440 result = AudioUnitSetProperty(this->hidden->audioUnit,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	441 kAudioOutputUnitProperty_EnableIO,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	442 kAudioUnitScope_Input, input_bus,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	443 &enableIO, sizeof (enableIO));
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	444 CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_EnableIO input)");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	445
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	446 // !!! FIXME: this is wrong?
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	447 enableIO = ((iscapture) ? 0 : 1);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	448 result = AudioUnitSetProperty(this->hidden->audioUnit,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	449 kAudioOutputUnitProperty_EnableIO,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	450 kAudioUnitScope_Output, output_bus,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	451 &enableIO, sizeof (enableIO));
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	452 CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_EnableIO output)");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	453
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	454 result = AudioUnitSetProperty(this->hidden->audioUnit,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	455 kAudioOutputUnitProperty_CurrentDevice,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	456 kAudioUnitScope_Global, 0,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	457 &this->hidden->deviceID,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	458 sizeof (AudioDeviceID));
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	459 CHECK_RESULT("AudioUnitSetProperty (kAudioOutputUnitProperty_CurrentDevice)");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	460
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	461 /* Set the data format of the audio unit. */
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	462 result = AudioUnitSetProperty(this->hidden->audioUnit,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	463 kAudioUnitProperty_StreamFormat,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	464 scope, bus, strdesc, sizeof (*strdesc));
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	465 CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_StreamFormat)");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	466
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	467 /* Set the audio callback */
3830 29e83f221c62 Fixed some things to use SDL C runtime functions. Ryan C. Gordon <icculus@icculus.org> parents: 3816 diff changeset	468 SDL_memset(&callback, '\0', sizeof (AURenderCallbackStruct));
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	469 callback.inputProc = ((iscapture) ? inputCallback : outputCallback);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	470 callback.inputProcRefCon = this;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	471 result = AudioUnitSetProperty(this->hidden->audioUnit,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	472 kAudioUnitProperty_SetRenderCallback,
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	473 scope, bus, &callback, sizeof (callback));
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	474 CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_SetInputCallback)");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	475
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	476 /* Calculate the final parameters for this audio specification */
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	477 SDL_CalculateAudioSpec(&this->spec);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	478
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	479 /* Allocate a sample buffer */
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	480 this->hidden->bufferOffset = this->hidden->bufferSize = this->spec.size;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	481 this->hidden->buffer = SDL_malloc(this->hidden->bufferSize);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	482
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	483 result = AudioUnitInitialize(this->hidden->audioUnit);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	484 CHECK_RESULT("AudioUnitInitialize");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	485
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	486 /* Finally, start processing of the audio unit */
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	487 result = AudioOutputUnitStart(this->hidden->audioUnit);
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	488 CHECK_RESULT("AudioOutputUnitStart");
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	489
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	490 /* We're running! */
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	491 return 1;
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	492 }
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	493
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	494
3795 589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested! Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	495 static int
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3790 diff changeset	496 COREAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	497 {
2016 72fa74928062 Compile fixes. Ryan C. Gordon <icculus@icculus.org> parents: 2003 diff changeset	498 AudioStreamBasicDescription strdesc;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	499 SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
2003 506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	500 int valid_datatype = 0;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	501
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	502 /* Initialize all variables that we clean on shutdown */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	503 this->hidden = (struct SDL_PrivateAudioData *)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	504 SDL_malloc((sizeof *this->hidden));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	505 if (this->hidden == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	506 SDL_OutOfMemory();
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	507 return (0);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	508 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	509 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	510
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	511 /* Setup a AudioStreamBasicDescription with the requested format */
3830 29e83f221c62 Fixed some things to use SDL C runtime functions. Ryan C. Gordon <icculus@icculus.org> parents: 3816 diff changeset	512 SDL_memset(&strdesc, '\0', sizeof(AudioStreamBasicDescription));
2016 72fa74928062 Compile fixes. Ryan C. Gordon <icculus@icculus.org> parents: 2003 diff changeset	513 strdesc.mFormatID = kAudioFormatLinearPCM;
72fa74928062 Compile fixes. Ryan C. Gordon <icculus@icculus.org> parents: 2003 diff changeset	514 strdesc.mFormatFlags = kLinearPCMFormatFlagIsPacked;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	515 strdesc.mChannelsPerFrame = this->spec.channels;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	516 strdesc.mSampleRate = this->spec.freq;
2016 72fa74928062 Compile fixes. Ryan C. Gordon <icculus@icculus.org> parents: 2003 diff changeset	517 strdesc.mFramesPerPacket = 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: 1487 diff changeset	518
2003 506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	519 while ((!valid_datatype) && (test_format)) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	520 this->spec.format = test_format;
2003 506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	521 /* Just a list of valid SDL formats, so people don't pass junk here. */
506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	522 switch (test_format) {
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	523 case AUDIO_U8:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	524 case AUDIO_S8:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	525 case AUDIO_U16LSB:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	526 case AUDIO_S16LSB:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	527 case AUDIO_U16MSB:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	528 case AUDIO_S16MSB:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	529 case AUDIO_S32LSB:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	530 case AUDIO_S32MSB:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	531 case AUDIO_F32LSB:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	532 case AUDIO_F32MSB:
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	533 valid_datatype = 1;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	534 strdesc.mBitsPerChannel = SDL_AUDIO_BITSIZE(this->spec.format);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	535 if (SDL_AUDIO_ISBIGENDIAN(this->spec.format))
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	536 strdesc.mFormatFlags \|= kLinearPCMFormatFlagIsBigEndian;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	537
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	538 if (SDL_AUDIO_ISFLOAT(this->spec.format))
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	539 strdesc.mFormatFlags \|= kLinearPCMFormatFlagIsFloat;
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	540 else if (SDL_AUDIO_ISSIGNED(this->spec.format))
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	541 strdesc.mFormatFlags \|= kLinearPCMFormatFlagIsSignedInteger;
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	542 break;
2003 506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	543 }
506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	544 }
506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	545
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2017 diff changeset	546 if (!valid_datatype) { /* shouldn't happen, but just in case... */
2003 506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	547 SDL_SetError("Unsupported audio format");
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	548 return 0;
2003 506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	549 }
506851d3efa4 Mac OS X audio backend now supports int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	550
2016 72fa74928062 Compile fixes. Ryan C. Gordon <icculus@icculus.org> parents: 2003 diff changeset	551 strdesc.mBytesPerFrame =
72fa74928062 Compile fixes. Ryan C. Gordon <icculus@icculus.org> parents: 2003 diff changeset	552 strdesc.mBitsPerChannel * strdesc.mChannelsPerFrame / 8;
72fa74928062 Compile fixes. Ryan C. Gordon <icculus@icculus.org> parents: 2003 diff changeset	553 strdesc.mBytesPerPacket =
72fa74928062 Compile fixes. Ryan C. Gordon <icculus@icculus.org> parents: 2003 diff changeset	554 strdesc.mBytesPerFrame * strdesc.mFramesPerPacket;
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	555
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	556 if (!prepare_audiounit(this, devname, iscapture, &strdesc)) {
da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	557 return 0; /* prepare_audiounit() will call SDL_SetError()... */
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	558 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	559
3785 da2ea0694d11 Ton of work on CoreAudio driver for new 1.3 features...most of the Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	560 return 1; /* good to go. */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	561 }
935 f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX Sam Lantinga <slouken@libsdl.org> parents: diff changeset	562
3816 9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	563 static int
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	564 COREAUDIO_Init(SDL_AudioDriverImpl *impl)
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	565 {
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	566 /* Set the function pointers */
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	567 impl->DetectDevices = COREAUDIO_DetectDevices;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	568 impl->GetDeviceName = COREAUDIO_GetDeviceName;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	569 impl->OpenDevice = COREAUDIO_OpenDevice;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	570 impl->CloseDevice = COREAUDIO_CloseDevice;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	571 impl->Deinitialize = COREAUDIO_Deinitialize;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	572 impl->ProvidesOwnCallbackThread = 1;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	573
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	574 build_device_lists(); /* do an initial check for devices... */
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	575
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	576 return 1;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	577 }
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	578
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	579 AudioBootStrap COREAUDIO_bootstrap = {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3830 diff changeset	580 "coreaudio", "Mac OS X CoreAudio", COREAUDIO_Init, 0
3816 9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	581 };
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I Ryan C. Gordon <icculus@icculus.org> parents: 3806 diff changeset	582
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	583 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

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