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

annotate src/audio/macrom/SDL_romaudio.c @ 3782:8225ef1f4dee SDL-ryan-multiple-audio-device

Removed the pre-Carbon Mac OS 9 audio code, so Mac OS 8 is officially unsupported now. :) The "USE_RYANS_SOUNDCODE" portion, which is what remains, has been the active codepath for years now without complaint, and was used in several shipping OS X titles before the CoreAudio support obsoleted it, so it's a good fallback to keep around for testing if nothing else. This code should still work on both OS 9, and PowerPC/Intel Mac OS X.

author	Ryan C. Gordon <icculus@icculus.org>
date	Sun, 01 Oct 2006 05:19:16 +0000
parents	c27292a690b7
children	37c9c4590689

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
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 static void Mac_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	56 static int Mac_OpenAudio(_THIS, SDL_AudioSpec * spec);
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	57 static void Mac_LockAudio(_THIS);
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	58 static void Mac_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
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	64 Audio_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
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	69 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	70 Audio_DeleteDevice(SDL_AudioDevice * device)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	72 SDL_free(device->hidden);
3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	73 SDL_free(device);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	74 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75
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	76 static SDL_AudioDevice *
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	77 Audio_CreateDevice(int devindex)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 SDL_AudioDevice *this;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	81 /* Initialize all variables that we clean on shutdown */
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	82 this = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
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	83 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	84 SDL_memset(this, 0, (sizeof *this));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85 this->hidden = (struct SDL_PrivateAudioData *)
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	86 SDL_malloc((sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	87 }
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	88 if ((this == NULL) \|\| (this->hidden == NULL)) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 SDL_OutOfMemory();
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	90 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	91 SDL_free(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	92 }
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	93 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	94 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	95 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	96
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	97 /* Set the function pointers */
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 this->OpenAudio = Mac_OpenAudio;
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	99 this->CloseAudio = Mac_CloseAudio;
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	100 this->LockAudio = Mac_LockAudio;
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 this->UnlockAudio = Mac_UnlockAudio;
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 this->free = Audio_DeleteDevice;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	103
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	104 #ifdef __MACOSX__ /* Mac OS X uses threaded audio, so normal thread code is okay */
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 this->LockAudio = NULL;
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	106 this->UnlockAudio = NULL;
25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	107 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108 return this;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	111 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	112 "sndmgr", SDL_MACOS_NAME " SoundManager",
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	113 Audio_Available, Audio_CreateDevice
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	115
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 #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	117
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	118 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	119 static volatile SInt32 need_to_mix = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	120
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	121 static UInt8 *buffer[2];
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	122 static volatile UInt32 running = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	123 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	124 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	125
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	126 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	127 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	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	129 if (!audio->paused) {
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	130 #ifdef __MACOSX__
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	131 SDL_mutexP(audio->mixer_lock);
25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	132 #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	133 if (audio->convert.needed) {
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	134 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	135 (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	136 audio->convert.len);
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	137 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	138 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	139 /* 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	140 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	141 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	142 } 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	143 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	144 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	145 }
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	146 #ifdef __MACOSX__
348 25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	147 SDL_mutexV(audio->mixer_lock);
25809353f877 Re-added MacOS X audio locking Sam Lantinga <slouken@libsdl.org> parents: 324 diff changeset	148 #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	149 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	150
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	151 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	152 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	153
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	154 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	155 Mac_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	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 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	158 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	159
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	160 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	161 Mac_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	162 {
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	163 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	164
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 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	166 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	167 return;
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	168
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	169 /* 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	170 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	171 /*
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	172 * 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	173 * 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	174 * 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	175 */
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	176 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	177 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	178 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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 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	181 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	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 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	184 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	185 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	186
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	187 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	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 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	190 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	191
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 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	193 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	194 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195
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	196 /* 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	197 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	198 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	199 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	200 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	201 SndDoCommand(chan, &cmd, 0);
47 45b1c4303f87 Added initial support for Quartz video (thanks Darrell!) Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	202
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	203 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	204
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 /*
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 * 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	207 * 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	208 */
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 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	210 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	211 }
323 b7e8038e40ae The audio lock and unlock functions are now a part of the driver. Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	212
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	213 /* 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	214 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	215 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	216 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	217 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	218
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	219 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	220 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222
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 static int
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	224 Mac_OpenAudio(_THIS, SDL_AudioSpec * spec)
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	225 {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226
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	227 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	228 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	229 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	230 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	231
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	232 /* Very few conversions are required, but... */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	233 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	234 case AUDIO_S8:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	235 spec->format = AUDIO_U8;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236 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	237 case AUDIO_U16LSB:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	238 spec->format = AUDIO_S16LSB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	239 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	240 case AUDIO_U16MSB:
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	241 spec->format = AUDIO_S16MSB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242 break;
2004 c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	243 case AUDIO_F32LSB:
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	244 spec->format = AUDIO_F32MSB;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	245 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	246 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	247 SDL_CalculateAudioSpec(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	248
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 /* 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	250 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	251 callback = (SndCallBackUPP) NewSndCallBackUPP(callBackProc);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	252 sample_bits = spec->size / spec->samples / spec->channels * 8;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	254 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	255 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	256 "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	257 spec->format, spec->channels, sample_bits, spec->freq);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	258 #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	259
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260 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	261 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	262 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	263 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	264 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	265
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	266 /* 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	267 if (spec->format == AUDIO_S16LSB) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	268 header.compressionID = fixedCompression;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	269 header.format = k16BitLittleEndianFormat;
2004 c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	270 } else if (spec->format == AUDIO_S32MSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	271 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	272 header.format = k32BitFormat;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	273 } else if (spec->format == AUDIO_S32LSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	274 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	275 header.format = k32BitLittleEndianFormat;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	276 } else if (spec->format == AUDIO_F32MSB) {
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	277 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	278 header.format = kFloat32Format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 }
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	280
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	281 /* 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	282 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	283 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	284 if (buffer[i] == NULL) {
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 SDL_OutOfMemory();
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 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	287 }
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 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	289 }
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 /* 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	292 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	293 if (channel == NULL) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	294 SDL_OutOfMemory();
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	295 return (-1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	296 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1621 diff changeset	297 if (spec->channels >= 2) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298 initOptions = initStereo;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	299 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 initOptions = initMono;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301 }
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 channel->userInfo = (long) this;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	303 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	304 if (SndNewChannel(&channel, sampledSynth, initOptions, callback) != noErr) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	305 SDL_SetError("Unable to create audio channel");
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	306 SDL_free(channel);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307 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	308 return (-1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	309 }
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	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 /* 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	312 {
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	313 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	314 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	315 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	316 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	317 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	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
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 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322
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	323 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	324 Mac_CloseAudio(_THIS)
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
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 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	328
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	329 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	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 if (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	332 SndDisposeChannel(channel, true);
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 channel = NULL;
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 }
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
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 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	337 if (buffer[i]) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	338 SDL_free(buffer[i]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	339 buffer[i] = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	340 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	342 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	343
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	344 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/macrom/SDL_romaudio.c @ 3782:8225ef1f4dee SDL-ryan-multiple-audio-device