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

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

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

author	Ryan C. Gordon <icculus@icculus.org>
date	Tue, 17 Oct 2006 09:09:21 +0000
parents	76c5a414b996
children

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: 769 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: 769 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: 769 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: 769 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: 769 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: 769 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: 769 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: 0 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	22 This driver was written by:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23 Erik Inge Bols�
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 knan@mo.himolde.no
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	26 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 /* Allow access to a raw mixing buffer */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #include <signal.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 #include <unistd.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32
1358 c71e05b4dc2e More header massaging... works great on Windows. ;-) Sam Lantinga <slouken@libsdl.org> parents: 1338 diff changeset	33 #include "SDL_timer.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 #include "SDL_audio.h"
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	35 #include "SDL_loadso.h"
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	36 #include "../SDL_audiomem.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	37 #include "../SDL_audio_c.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38 #include "SDL_nasaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	40 /* The tag name used by nas audio */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 #define NAS_DRIVER_NAME "nas"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43 static struct SDL_PrivateAudioData *this2 = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	45
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	46 static void (NAS_AuCloseServer)(AuServer );
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	47 static void (NAS_AuNextEvent)(AuServer , AuBool, AuEvent *);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	48 static AuBool (NAS_AuDispatchEvent)(AuServer , AuEvent *);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	49 static AuFlowID (NAS_AuCreateFlow)(AuServer , AuStatus *);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	50 static void (NAS_AuStartFlow)(AuServer , AuFlowID, AuStatus *);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	51 static void (*NAS_AuSetElements)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	52 (AuServer , AuFlowID, AuBool, int, AuElement , AuStatus *);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	53 static void (*NAS_AuWriteElement)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	54 (AuServer , AuFlowID, int, AuUint32, AuPointer, AuBool, AuStatus );
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	55 static AuServer (NAS_AuOpenServer)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	56 (_AuConst char , int, _AuConst char , int, _AuConst char , char *);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	57 static AuEventHandlerRec (NAS_AuRegisterEventHandler)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	58 (AuServer *, AuMask, int, AuID, AuEventHandlerCallback, AuPointer);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	59
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	60
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	61 #ifdef SDL_AUDIO_DRIVER_NAS_DYNAMIC
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	62
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	63 static const char *nas_library = SDL_AUDIO_DRIVER_NAS_DYNAMIC;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	64 static void *nas_handle = NULL;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	65
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	66 static int
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	67 load_nas_sym(const char fn, void *addr)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	68 {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	69 *addr = SDL_LoadFunction(nas_handle, fn);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	70 if (*addr == NULL) {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	71 return 0;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	72 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	73 return 1;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	74 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	75
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	76 /* cast funcs to char* first, to please GCC's strict aliasing rules. */
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	77 #define SDL_NAS_SYM(x) \
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	78 if (!load_nas_sym(#x, (void *) (char ) &NAS_##x)) return -1
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	79 #else
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	80 #define SDL_NAS_SYM(x) NAS_##x = x
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	81 #endif
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	82
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	83 static int load_nas_syms(void)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	84 {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	85 SDL_NAS_SYM(AuCloseServer);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	86 SDL_NAS_SYM(AuNextEvent);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	87 SDL_NAS_SYM(AuDispatchEvent);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	88 SDL_NAS_SYM(AuCreateFlow);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	89 SDL_NAS_SYM(AuStartFlow);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	90 SDL_NAS_SYM(AuSetElements);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	91 SDL_NAS_SYM(AuWriteElement);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	92 SDL_NAS_SYM(AuOpenServer);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	93 SDL_NAS_SYM(AuRegisterEventHandler);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	94 return 0;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	95 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	96 #undef SDL_NAS_SYM
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	97
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	98 #ifdef SDL_AUDIO_DRIVER_NAS_DYNAMIC
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	99
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	100 static void
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	101 UnloadNASLibrary(void)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	102 {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	103 if (nas_handle != NULL) {
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	104 SDL_UnloadObject(nas_handle);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	105 nas_handle = NULL;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	106 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	107 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	108
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	109 static int
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	110 LoadNASLibrary(void)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	111 {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	112 int retval = 0;
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	113 if (nas_handle == NULL) {
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	114 nas_handle = SDL_LoadObject(nas_library);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	115 if (nas_handle == NULL) {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	116 /* Copy error string so we can use it in a new SDL_SetError(). */
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	117 char *origerr = SDL_GetError();
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	118 size_t len = SDL_strlen(origerr) + 1;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	119 char err = (char ) alloca(len);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	120 SDL_strlcpy(err, origerr, len);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	121 retval = -1;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	122 SDL_SetError("NAS: SDL_LoadObject('%s') failed: %s\n",
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	123 nas_library, err);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	124 } else {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	125 retval = load_nas_syms();
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	126 if (retval < 0) {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	127 UnloadNASLibrary();
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	128 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	129 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	130 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	131 return retval;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	132 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	133
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	134 #else
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	135
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	136 static void
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	137 UnloadNASLibrary(void)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	138 {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	139 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	140
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	141 static int
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	142 LoadNASLibrary(void)
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	143 {
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	144 load_nas_syms();
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	145 return 0;
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	146 }
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	147
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	148 #endif /* SDL_AUDIO_DRIVER_NAS_DYNAMIC */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150 /* This function waits until it is possible to write a full sound buffer */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	151 static void
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	152 NAS_WaitDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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: 1402 diff changeset	154 while (this->hidden->buf_free < this->hidden->mixlen) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	155 AuEvent ev;
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	156 NAS_AuNextEvent(this->hidden->aud, AuTrue, &ev);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	157 NAS_AuDispatchEvent(this->hidden->aud, &ev);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	158 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	159 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	160
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	161 static void
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	162 NAS_PlayDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	163 {
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	164 while (this->hidden->mixlen > this->hidden->buf_free) {
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	165 /*
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	166 * We think the buffer is full? Yikes! Ask the server for events,
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	167 * in the hope that some of them is LowWater events telling us more
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	168 * of the buffer is free now than what we think.
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	169 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	170 AuEvent ev;
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	171 NAS_AuNextEvent(this->hidden->aud, AuTrue, &ev);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	172 NAS_AuDispatchEvent(this->hidden->aud, &ev);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	173 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	174 this->hidden->buf_free -= this->hidden->mixlen;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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: 1402 diff changeset	176 /* Write the audio data */
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	177 NAS_AuWriteElement(this->hidden->aud, this->hidden->flow, 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: 1402 diff changeset	178 this->hidden->mixlen, this->hidden->mixbuf, AuFalse, NULL);
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: 1402 diff changeset	180 this->hidden->written += this->hidden->mixlen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	181
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182 #ifdef 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: 1402 diff changeset	183 fprintf(stderr, "Wrote %d bytes of audio data\n", this->hidden->mixlen);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	185 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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: 1402 diff changeset	187 static Uint8 *
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	188 NAS_GetDeviceBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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: 1402 diff changeset	190 return (this->hidden->mixbuf);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	193 static void
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	194 NAS_CloseDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195 {
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	196 if (this->hidden != NULL) {
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	197 if (this->hidden->mixbuf != NULL) {
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	198 SDL_FreeAudioMem(this->hidden->mixbuf);
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	199 this->hidden->mixbuf = NULL;
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	200 }
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	201 if (this->hidden->aud) {
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	202 NAS_AuCloseServer(this->hidden->aud);
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	203 this->hidden->aud = 0;
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	204 }
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	205 SDL_free(this->hidden);
3822 748707e2ddd1 Minor NAS tweak. Ryan C. Gordon <icculus@icculus.org> parents: 3821 diff changeset	206 this2 = this->hidden = 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: 1402 diff changeset	207 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	208 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	209
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	210 static unsigned char
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	211 sdlformat_to_auformat(unsigned int fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: 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: 1402 diff changeset	213 switch (fmt) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	214 case AUDIO_U8:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	215 return AuFormatLinearUnsigned8;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216 case AUDIO_S8:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	217 return AuFormatLinearSigned8;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	218 case AUDIO_U16LSB:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	219 return AuFormatLinearUnsigned16LSB;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220 case AUDIO_U16MSB:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	221 return AuFormatLinearUnsigned16MSB;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 case AUDIO_S16LSB:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	223 return AuFormatLinearSigned16LSB;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 case AUDIO_S16MSB:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	225 return AuFormatLinearSigned16MSB;
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: 1402 diff changeset	227 return AuNone;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230 static AuBool
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	231 event_handler(AuServer * aud, AuEvent * ev, AuEventHandlerRec * hnd)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	233 switch (ev->type) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	234 case AuEventTypeElementNotify:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	235 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	236 AuElementNotifyEvent event = (AuElementNotifyEvent ) ev;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	237
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	238 switch (event->kind) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	239 case AuElementNotifyKindLowWater:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	240 if (this2->buf_free >= 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	241 this2->really += event->num_bytes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	242 gettimeofday(&this2->last_tv, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	243 this2->buf_free += event->num_bytes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	244 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	245 this2->buf_free = event->num_bytes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	246 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	247 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	248 case AuElementNotifyKindState:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	249 switch (event->cur_state) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	250 case AuStatePause:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	251 if (event->reason != AuReasonUser) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	252 if (this2->buf_free >= 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	253 this2->really += event->num_bytes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	254 gettimeofday(&this2->last_tv, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	255 this2->buf_free += event->num_bytes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	256 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	257 this2->buf_free = event->num_bytes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	258 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	259 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	260 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	261 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	262 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	263 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	264 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	265 return AuTrue;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	266 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	267
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	268 static AuDeviceID
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	269 find_device(_THIS, int nch)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270 {
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	271 /* These "Au" things are all macros, not functions... */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	272 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: 1402 diff changeset	273 for (i = 0; i < AuServerNumDevices(this->hidden->aud); i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	274 if ((AuDeviceKind(AuServerDevice(this->hidden->aud, i)) ==
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	275 AuComponentKindPhysicalOutput) &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	276 AuDeviceNumTracks(AuServerDevice(this->hidden->aud, i)) == nch) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	277 return AuDeviceIdentifier(AuServerDevice(this->hidden->aud, i));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	278 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	279 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	280 return AuNone;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	281 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	282
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	283 static int
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	284 NAS_OpenDevice(_THIS, const char *devname, int iscapture)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	285 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	286 AuElement elms[3];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	287 int buffer_size;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	288 SDL_AudioFormat test_format, 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: 1402 diff changeset	289
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	290 /* Initialize all variables that we clean on shutdown */
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	291 this->hidden = (struct SDL_PrivateAudioData *)
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	292 SDL_malloc((sizeof *this->hidden));
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	293 if (this->hidden == NULL) {
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	294 SDL_OutOfMemory();
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	295 return 0;
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	296 }
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	297 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	299 /* Try for a closest match on audio format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	300 format = 0;
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	301 for (test_format = SDL_FirstAudioFormat(this->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: 1402 diff changeset	302 !format && test_format;) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	303 format = sdlformat_to_auformat(test_format);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	304 if (format == AuNone) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	305 test_format = SDL_NextAudioFormat();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	306 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	307 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	308 if (format == 0) {
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	309 NAS_CloseDevice(this);
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	310 SDL_SetError("NAS: Couldn't find any hardware audio formats");
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	311 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: 1402 diff changeset	312 }
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	313 this->spec.format = test_format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	315 this->hidden->aud = NAS_AuOpenServer("", 0, NULL, 0, NULL, 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: 1402 diff changeset	316 if (this->hidden->aud == 0) {
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	317 NAS_CloseDevice(this);
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	318 SDL_SetError("NAS: Couldn't open connection to NAS server");
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	319 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: 1402 diff changeset	320 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	321
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	322 this->hidden->dev = find_device(this, this->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: 1402 diff changeset	323 if ((this->hidden->dev == AuNone)
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	324 \|\| (!(this->hidden->flow = NAS_AuCreateFlow(this->hidden->aud, 0)))) {
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	325 NAS_CloseDevice(this);
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	326 SDL_SetError("NAS: Couldn't find a fitting device on NAS server");
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	327 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: 1402 diff changeset	328 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	330 buffer_size = this->spec.freq;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	331 if (buffer_size < 4096)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	332 buffer_size = 4096;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	334 if (buffer_size > 32768)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	335 buffer_size = 32768; /* So that the buffer won't get unmanageably big. */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	336
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	337 /* Calculate the final parameters for this audio specification */
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	338 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: 1402 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: 1402 diff changeset	340 this2 = this->hidden;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	342 AuMakeElementImportClient(elms,this->spec.freq,format,this->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: 1402 diff changeset	343 AuTrue, buffer_size, buffer_size / 4, 0, NULL);
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	344 AuMakeElementExportDevice(elms + 1, 0, this->hidden->dev, this->spec.freq,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	345 AuUnlimitedSamples, 0, NULL);
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	346 NAS_AuSetElements(this->hidden->aud, this->hidden->flow,
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	347 AuTrue, 2, elms, NULL);
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	348 NAS_AuRegisterEventHandler(this->hidden->aud, AuEventHandlerIDMask, 0,
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	349 this->hidden->flow, event_handler,
76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	350 (AuPointer) NULL);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	351
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	352 NAS_AuStartFlow(this->hidden->aud, this->hidden->flow, NULL);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	353
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	354 /* Allocate mixing buffer */
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	355 this->hidden->mixlen = this->spec.size;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	356 this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	357 if (this->hidden->mixbuf == NULL) {
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	358 NAS_CloseDevice(this);
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	359 SDL_OutOfMemory();
3825 76c5a414b996 Dynamic loading for NAS audio driver. Ryan C. Gordon <icculus@icculus.org> parents: 3822 diff changeset	360 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: 1402 diff changeset	361 }
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	362 SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	363
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	364 /* We're ready to rock and roll. :-) */
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	365 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	366 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	367
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	368 static void
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	369 NAS_Deinitialize(void)
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	370 {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	371 UnloadNASLibrary();
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	372 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	373
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	374 static int
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	375 NAS_Init(SDL_AudioDriverImpl *impl)
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	376 {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	377 if (LoadNASLibrary() < 0) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	378 return 0;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	379 } else {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	380 AuServer *aud = NAS_AuOpenServer("", 0, NULL, 0, NULL, NULL);
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	381 if (aud == NULL) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	382 SDL_SetError("NAS: AuOpenServer() failed (no audio server?)");
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	383 return 0;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	384 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	385 NAS_AuCloseServer(aud);
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	386 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	387
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	388 /* Set the function pointers */
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	389 impl->OpenDevice = NAS_OpenDevice;
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	390 impl->PlayDevice = NAS_PlayDevice;
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	391 impl->WaitDevice = NAS_WaitDevice;
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	392 impl->GetDeviceBuf = NAS_GetDeviceBuf;
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	393 impl->CloseDevice = NAS_CloseDevice;
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	394 impl->Deinitialize = NAS_Deinitialize;
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	395 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: is this true? */
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	396
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	397 return 1;
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	398 }
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	399
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	400 AudioBootStrap NAS_bootstrap = {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3825 diff changeset	401 NAS_DRIVER_NAME, "Network Audio System", NAS_Init, 0
3821 18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	402 };
18393b045759 Moved NAS audio driver to 1.3 API. Ryan C. Gordon <icculus@icculus.org> parents: 3809 diff changeset	403
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	404 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

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