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

annotate src/audio/macrom/SDL_romaudio.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device

Audio bootstraps can now specify that a driver is only to be used if explicitly requested (for things like the "disk" driver that is always available but you would never want to default to using). Trimmed out code that can be handled by stubs in the core. The "dummy" driver is pretty damned small now. :)

author	Ryan C. Gordon <icculus@icculus.org>
date	Wed, 04 Oct 2006 21:27:53 +0000
parents	b19680c84cdf
children	1485d42cf1a0

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1135 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1135 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1135 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1135 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1135 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: 1135 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: 1135 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 47 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
3782 8225ef1f4dee Removed the pre-Carbon Mac OS 9 audio code, so Mac OS 8 is officially Ryan C. Gordon <icculus@icculus.org> parents: 2004 diff changeset	24 /* This should work on PowerPC and Intel Mac OS X, and Carbonized Mac OS 9. */
8225ef1f4dee Removed the pre-Carbon Mac OS 9 audio code, so Mac OS 8 is officially Ryan C. Gordon <icculus@icculus.org> parents: 2004 diff changeset	25
1133 609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: Ryan C. Gordon <icculus@icculus.org> parents: 769 diff changeset	26 #if defined(__APPLE__) && defined(__MACH__)
3782 8225ef1f4dee Removed the pre-Carbon Mac OS 9 audio code, so Mac OS 8 is officially Ryan C. Gordon <icculus@icculus.org> parents: 2004 diff changeset	27 # define SDL_MACOS_NAME "Mac OS X"
1133 609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: Ryan C. Gordon <icculus@icculus.org> parents: 769 diff changeset	28 # include <Carbon/Carbon.h>
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: Ryan C. Gordon <icculus@icculus.org> parents: 769 diff changeset	29 #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335)
3782 8225ef1f4dee Removed the pre-Carbon Mac OS 9 audio code, so Mac OS 8 is officially Ryan C. Gordon <icculus@icculus.org> parents: 2004 diff changeset	30 # define SDL_MACOS_NAME "Mac OS 9"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 # include <Carbon.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32 #else
3782 8225ef1f4dee Removed the pre-Carbon Mac OS 9 audio code, so Mac OS 8 is officially Ryan C. Gordon <icculus@icculus.org> parents: 2004 diff changeset	33 # define SDL_MACOS_NAME "Mac OS 9"
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	34 # include <Sound.h> /* SoundManager interface */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 # include <Gestalt.h>
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	36 # include <DriverServices.h>
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38
1133 609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: Ryan C. Gordon <icculus@icculus.org> parents: 769 diff changeset	39 #if !defined(NewSndCallBackUPP) && (UNIVERSAL_INTERFACES_VERSION < 0x0335)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	40 #if !defined(NewSndCallBackProc) /* avoid circular redefinition... */
1133 609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: Ryan C. Gordon <icculus@icculus.org> parents: 769 diff changeset	41 #define NewSndCallBackUPP NewSndCallBackProc
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: Ryan C. Gordon <icculus@icculus.org> parents: 769 diff changeset	42 #endif
1135 cf6133247d34 Mac Classic and CodeWarrior patches. Ryan C. Gordon <icculus@icculus.org> parents: 1133 diff changeset	43 #if !defined(NewSndCallBackUPP)
cf6133247d34 Mac Classic and CodeWarrior patches. Ryan C. Gordon <icculus@icculus.org> parents: 1133 diff changeset	44 #define NewSndCallBackUPP NewSndCallBackProc
cf6133247d34 Mac Classic and CodeWarrior patches. Ryan C. Gordon <icculus@icculus.org> parents: 1133 diff changeset	45 #endif
1133 609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: Ryan C. Gordon <icculus@icculus.org> parents: 769 diff changeset	46 #endif
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: Ryan C. Gordon <icculus@icculus.org> parents: 769 diff changeset	47
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 #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	49 #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	50 #include "../SDL_sysaudio.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 #include "SDL_romaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53 /* Audio driver functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	55 static void SNDMGR_CloseDevice(_THIS);
866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	56 static int SNDMGR_OpenDevice(_THIS, const char *devname, int iscapture);
866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	57 static void SNDMGR_LockDevice(_THIS);
866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	58 static void SNDMGR_UnlockDevice(_THIS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 /* Audio driver bootstrap functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	62 static int
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	63 SNDMGR_Available(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	65 return (1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	69 static int
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	70 SNDMGR_Init(SDL_AudioDriverImpl *impl)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	72 /* Set the function pointers */
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	73 impl->OpenDevice = SNDMGR_OpenDevice;
866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	74 impl->CloseDevice = SNDMGR_CloseDevice;
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	75 impl->ProvidesOwnCallbackThread = 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	76 impl->OnlyHasDefaultOutputDevice = 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	77
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	78 #ifndef __MACOSX__ /* Mac OS X uses threaded audio, so normal thread code is okay */
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	79 impl->LockDevice = SNDMGR_LockDevice;
866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	80 impl->UnlockDevice = SNDMGR_UnlockDevice;
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	81 #endif
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	82
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	83 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86 AudioBootStrap SNDMGR_bootstrap = {
3782 8225ef1f4dee Removed the pre-Carbon Mac OS 9 audio code, so Mac OS 8 is officially Ryan C. Gordon <icculus@icculus.org> parents: 2004 diff changeset	87 "sndmgr", SDL_MACOS_NAME " SoundManager",
3798 c8b3d3d13ed1 Audio bootstraps can now specify that a driver is only to be used if Ryan C. Gordon <icculus@icculus.org> parents: 3796 diff changeset	88 SNDMGR_Available, SNDMGR_Init, 0
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	90
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	91 #pragma options align=power
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	92
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	93 static volatile SInt32 audio_is_locked = 0;
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	94 static volatile SInt32 need_to_mix = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	95
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	96 static UInt8 *buffer[2];
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	97 static volatile UInt32 running = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	98 static CmpSoundHeader header;
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	99 static volatile Uint32 fill_me = 0;
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	100
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 3792 diff changeset	101
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	102 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	103 mix_buffer(SDL_AudioDevice * audio, UInt8 * buffer)
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	104 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	105 if (!audio->paused) {
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	106 #ifdef __MACOSX__
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	107 SDL_mutexP(audio->mixer_lock);
25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	108 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	109 if (audio->convert.needed) {
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	110 audio->spec.callback(audio->spec.userdata,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	111 (Uint8 *) audio->convert.buf,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	112 audio->convert.len);
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	113 SDL_ConvertAudio(&audio->convert);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	114 if (audio->convert.len_cvt != audio->spec.size) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	115 /* Uh oh... probably crashes here */ ;
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	116 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	117 SDL_memcpy(buffer, audio->convert.buf, audio->convert.len_cvt);
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	118 } else {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	119 audio->spec.callback(audio->spec.userdata, buffer,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	120 audio->spec.size);
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	121 }
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	122 #ifdef __MACOSX__
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	123 SDL_mutexV(audio->mixer_lock);
25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	124 #endif
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	125 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	126
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	127 DecrementAtomic((SInt32 *) & need_to_mix);
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	128 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	129
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	130 static void
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	131 SNDMGR_LockDevice(_THIS)
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	132 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	133 IncrementAtomic((SInt32 *) & audio_is_locked);
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	134 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	135
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	136 static void
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	137 SNDMGR_UnlockDevice(_THIS)
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	138 {
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	139 SInt32 oldval;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	140
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	141 oldval = DecrementAtomic((SInt32 *) & audio_is_locked);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	142 if (oldval != 1) /* != 1 means audio is still locked. */
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	143 return;
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	144
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	145 /* Did we miss the chance to mix in an interrupt? Do it now. */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	146 if (BitAndAtomic(0xFFFFFFFF, (UInt32 *) & need_to_mix)) {
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	147 /*
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	148 * Note that this could be a problem if you missed an interrupt
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	149 * while the audio was locked, and get preempted by a second
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	150 * interrupt here, but that means you locked for way too long anyhow.
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	151 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	152 mix_buffer(this, buffer[fill_me]);
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	153 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	154 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	155
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	156 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	157 callBackProc(SndChannel * chan, SndCommand * cmd_passed)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	158 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	159 UInt32 play_me;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	160 SndCommand cmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	161 SDL_AudioDevice audio = (SDL_AudioDevice ) chan->userInfo;
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	162
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	163 IncrementAtomic((SInt32 *) & need_to_mix);
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	164
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	165 fill_me = cmd_passed->param2; /* buffer that has just finished playing, so fill it */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	166 play_me = !fill_me; /* filled buffer to play _now_ */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	167
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	168 if (!audio->enabled) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	169 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	170 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	171
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	172 /* queue previously mixed buffer for playback. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	173 header.samplePtr = (Ptr) buffer[play_me];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	174 cmd.cmd = bufferCmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	175 cmd.param1 = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	176 cmd.param2 = (long) &header;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	177 SndDoCommand(chan, &cmd, 0);
47 45b1c4303f87 Added initial support for Quartz video (thanks Darrell!) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	178
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	179 memset(buffer[fill_me], 0, audio->spec.size);
47 45b1c4303f87 Added initial support for Quartz video (thanks Darrell!) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	180
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	181 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	182 * if audio device isn't locked, mix the next buffer to be queued in
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	183 * the memory block that just finished playing.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	184 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	185 if (!BitAndAtomic(0xFFFFFFFF, (UInt32 *) & audio_is_locked)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	186 mix_buffer(audio, buffer[fill_me]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	187 }
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	188
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	189 /* set this callback to run again when current buffer drains. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	190 if (running) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	191 cmd.cmd = callBackCmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	192 cmd.param1 = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	193 cmd.param2 = play_me;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	194
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	195 SndDoCommand(chan, &cmd, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	196 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	199 static int
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	200 SNDMGR_OpenDevice(_THIS, const char *devname, int iscapture)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	201 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	202 SDL_AudioSpec *spec = &this->spec;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	203 SndChannelPtr channel = NULL;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	204 SndCallBackUPP callback;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	205 int sample_bits;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	206 int i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	207 long initOptions;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	208
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	209 /* 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: 3782 diff changeset	210 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: 3782 diff changeset	211 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: 3782 diff changeset	212 if (this->hidden == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	213 SDL_OutOfMemory();
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	214 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	215 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	216 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: 3782 diff changeset	217
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	218 /* !!! FIXME: check devname and iscapture... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	219
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	220 /* !!! FIXME: iterate through format matrix... */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	221 /* Very few conversions are required, but... */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 switch (spec->format) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	223 case AUDIO_S8:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 spec->format = AUDIO_U8;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	225 break;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	226 case AUDIO_U16LSB:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 spec->format = AUDIO_S16LSB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 break;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	229 case AUDIO_U16MSB:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230 spec->format = AUDIO_S16MSB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231 break;
2004 c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	232 case AUDIO_F32LSB:
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	233 spec->format = AUDIO_F32MSB;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	234 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	235 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	236 SDL_CalculateAudioSpec(&this->spec);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	237
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	238 /* initialize bufferCmd header */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	239 memset(&header, 0, sizeof(header));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	240 callback = (SndCallBackUPP) NewSndCallBackUPP(callBackProc);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	241 sample_bits = spec->size / spec->samples / spec->channels * 8;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	244 fprintf(stderr,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	245 "Audio format 0x%x, channels = %d, sample_bits = %d, frequency = %d\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	246 spec->format, spec->channels, sample_bits, spec->freq);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	247 #endif /* DEBUG_AUDIO */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	248
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 header.numChannels = spec->channels;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	250 header.sampleSize = sample_bits;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	251 header.sampleRate = spec->freq << 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	252 header.numFrames = spec->samples;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	253 header.encode = cmpSH;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	254
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	255 /* Note that we install the 16bitLittleEndian Converter if needed. */
2004 c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	256 if (spec->format == AUDIO_S16LSB) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	257 header.compressionID = fixedCompression;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	258 header.format = k16BitLittleEndianFormat;
2004 c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	259 } else if (spec->format == AUDIO_S32MSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	260 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	261 header.format = k32BitFormat;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	262 } else if (spec->format == AUDIO_S32LSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	263 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	264 header.format = k32BitLittleEndianFormat;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	265 } else if (spec->format == AUDIO_F32MSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	266 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	267 header.format = kFloat32Format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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: 1621 diff changeset	269
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270 /* allocate 2 buffers */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	271 for (i = 0; i < 2; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	272 buffer[i] = (UInt8 ) malloc(sizeof(UInt8) spec->size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	273 if (buffer[i] == NULL) {
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	274 SNDMGR_CloseDevice(this);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	275 SDL_OutOfMemory();
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	276 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	277 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	278 memset(buffer[i], 0, spec->size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	279 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	280
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	281 /* Create the sound manager channel */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	282 channel = (SndChannelPtr) SDL_malloc(sizeof(*channel));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	283 if (channel == NULL) {
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	284 SNDMGR_CloseDevice(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	285 SDL_OutOfMemory();
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	286 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	287 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	288 this->hidden->channel = channel;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	289 if (spec->channels >= 2) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290 initOptions = initStereo;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	292 initOptions = initMono;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	294 channel->userInfo = (long) this;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	295 channel->qLength = 128;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	296 if (SndNewChannel(&channel, sampledSynth, initOptions, callback) != noErr) {
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	297 SNDMGR_CloseDevice(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298 SDL_SetError("Unable to create audio channel");
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	299 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	301
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	302 /* start playback */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	303 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	304 SndCommand cmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	305 cmd.cmd = callBackCmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	306 cmd.param2 = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	307 running = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	308 SndDoCommand(channel, &cmd, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	309 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	310
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	311 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	312 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	313
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	314 static void
3792 866c310e2cb5 Changed some 1.3 audio symbol names. Ryan C. Gordon <icculus@icculus.org> parents: 3784 diff changeset	315 SNDMGR_CloseDevice(_THIS)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	316 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	317 int i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	318
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	319 running = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	320
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	321 if (this->hidden->channel) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	322 SndDisposeChannel(this->hidden->channel, true);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	323 this->hidden->channel = NULL;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	324 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	325
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	326 for (i = 0; i < 2; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	327 if (buffer[i]) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	328 SDL_free(buffer[i]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329 buffer[i] = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	330 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	331 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	332 SDL_free(this->hidden);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	333 this->hidden = NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	334 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	335
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	336 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/macrom/SDL_romaudio.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device