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

annotate src/audio/macrom/SDL_romaudio.c @ 3784:37c9c4590689 SDL-ryan-multiple-audio-device

First batch of heavy lifting on supporting multiple audio devices at once. This has a long way to go yet, most of the drivers aren't updated for the new interfaces, and it's still got some obvious bugs, FIXMEs, and wistlist items. Don't use yet.

author	Ryan C. Gordon <icculus@icculus.org>
date	Sun, 01 Oct 2006 05:24:03 +0000
parents	8225ef1f4dee
children	866c310e2cb5

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
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	55 static void SNDMGR_CloseAudio(_THIS);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	56 static int SNDMGR_OpenAudio(_THIS, const char *devname, int iscapture);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	57 static void SNDMGR_LockAudio(_THIS);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	58 static void SNDMGR_UnlockAudio(_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
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62
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	63 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	64 SNDMGR_Available(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65 {
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	66 return (1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	70 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	71 SNDMGR_Init(SDL_AudioDriverImpl *impl)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	72 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73 /* Set the function pointers */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	74 impl->OpenAudio = SNDMGR_OpenAudio;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	75 impl->CloseAudio = SNDMGR_CloseAudio;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	76 impl->LockAudio = SNDMGR_LockAudio;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	77 impl->UnlockAudio = SNDMGR_UnlockAudio;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78
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	79 #ifdef __MACOSX__ /* Mac OS X uses threaded audio, so normal thread code is okay */
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	80 impl->LockAudio = NULL;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	81 impl->UnlockAudio = NULL;
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	82 #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	83
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	84 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	87 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	88 "sndmgr", SDL_MACOS_NAME " SoundManager",
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	89 SNDMGR_Available, SNDMGR_Init
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	90 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	91
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	92 #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	93
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	94 static volatile int audio_is_opened = 0;
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	95 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	96 static volatile SInt32 need_to_mix = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	97
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	98 static UInt8 *buffer[2];
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	99 static volatile UInt32 running = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	100 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	101 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	102
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	103 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	104 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	105 {
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	106 if (!audio->paused) {
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	107 #ifdef __MACOSX__
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	108 SDL_mutexP(audio->mixer_lock);
25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	109 #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	110 if (audio->convert.needed) {
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	111 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	112 (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	113 audio->convert.len);
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	114 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	115 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	116 /* 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	117 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	118 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	119 } 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	120 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	121 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	122 }
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	123 #ifdef __MACOSX__
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	124 SDL_mutexV(audio->mixer_lock);
25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	125 #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	126 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	127
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	128 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	129 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	130
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	131 static void
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	132 SNDMGR_LockAudio(_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	133 {
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	134 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	135 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	136
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	137 static void
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	138 SNDMGR_UnlockAudio(_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	139 {
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	140 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	141
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 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	143 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	144 return;
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	145
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	146 /* 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	147 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	148 /*
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	149 * 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	150 * 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	151 * 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	152 */
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	153 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	154 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	155 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156
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	157 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	158 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	159 {
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 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	161 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	162 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	163
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	164 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	165
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	166 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	167 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	168
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 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	170 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	171 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	172
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	173 /* 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	174 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	175 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	176 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	177 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	178 SndDoCommand(chan, &cmd, 0);
47 45b1c4303f87 Added initial support for Quartz video (thanks Darrell!) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	179
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	180 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	181
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	182 /*
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 * 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	184 * 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	185 */
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 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	187 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	188 }
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	189
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	190 /* 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	191 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	192 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	193 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	194 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	195
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 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	197 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199
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	200 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	201 SNDMGR_OpenAudio(_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	202 {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	203 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	204 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	205 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	206 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	207 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	208 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	209
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	210 if (audio_is_opened) {
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_SetError("SoundManager driver doesn't support multiple opens");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	212 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	213 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	214
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	215 if (iscapture) {
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_SetError("SoundManager driver doesn't support recording");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	217 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	218 }
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: ignore devname? */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	221
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	222 /* 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	223 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	224 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	225 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	226 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	227 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	228 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	229 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	230
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	231 /* !!! 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	232
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	233 /* !!! 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	234 /* Very few conversions are required, but... */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	235 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	236 case AUDIO_S8:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	237 spec->format = AUDIO_U8;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	238 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	239 case AUDIO_U16LSB:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	240 spec->format = AUDIO_S16LSB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	241 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	242 case AUDIO_U16MSB:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243 spec->format = AUDIO_S16MSB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	244 break;
2004 c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	245 case AUDIO_F32LSB:
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	246 spec->format = AUDIO_F32MSB;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	247 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	248 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	249 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	250
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251 /* 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	252 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	253 callback = (SndCallBackUPP) NewSndCallBackUPP(callBackProc);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	254 sample_bits = spec->size / spec->samples / spec->channels * 8;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	255
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	256 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	257 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	258 "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	259 spec->format, spec->channels, sample_bits, spec->freq);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260 #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	261
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	262 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	263 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	264 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	265 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	266 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	267
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	268 /* 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	269 if (spec->format == AUDIO_S16LSB) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270 header.compressionID = fixedCompression;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	271 header.format = k16BitLittleEndianFormat;
2004 c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	272 } else if (spec->format == AUDIO_S32MSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	273 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	274 header.format = k32BitFormat;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	275 } else if (spec->format == AUDIO_S32LSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	276 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	277 header.format = k32BitLittleEndianFormat;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	278 } else if (spec->format == AUDIO_F32MSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	279 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	280 header.format = kFloat32Format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	281 }
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	282
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	283 /* 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	284 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	285 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	286 if (buffer[i] == NULL) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	287 SNDMGR_CloseAudio(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	288 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	289 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	290 }
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	291 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	292 }
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	293
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 /* 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	295 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	296 if (channel == NULL) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	297 SNDMGR_CloseAudio(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298 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	299 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	301 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	302 if (spec->channels >= 2) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	303 initOptions = initStereo;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	304 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	305 initOptions = initMono;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	306 }
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	307 channel->userInfo = (long) this;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	308 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	309 if (SndNewChannel(&channel, sampledSynth, initOptions, callback) != noErr) {
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	310 SNDMGR_CloseAudio(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	311 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	312 return 0;
0 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
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	315 /* 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	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 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	318 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	319 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	320 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	321 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	322 }
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	323
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	324 audio_is_opened = 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: 1621 diff changeset	325 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	326 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	327
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	328 static void
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	329 SNDMGR_CloseAudio(_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	330 {
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	331
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	332 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	333
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	334 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	335
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	336 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	337 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	338 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	339 }
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	340
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	341 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	342 if (buffer[i]) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	343 SDL_free(buffer[i]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	344 buffer[i] = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	345 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	346 }
3784 37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once. Ryan C. Gordon <icculus@icculus.org> parents: 3782 diff changeset	347 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	348 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	349 audio_is_opened = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	350 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	351
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	352 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/macrom/SDL_romaudio.c @ 3784:37c9c4590689 SDL-ryan-multiple-audio-device