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

annotate src/audio/dmedia/SDL_irixaudio.c @ 4203:7e5486073044 SDL-1.2

Patched to compile on Mac OS X <= 10.4 SDKs.

author	Ryan C. Gordon <icculus@icculus.org>
date	Mon, 21 Sep 2009 04:34:22 +0000
parents	a1b03ba2fcd0
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
4159 a1b03ba2fcd0 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 3852 diff changeset	3 Copyright (C) 1997-2009 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: 903 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: 903 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: 903 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: 903 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: 903 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: 903 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: 148 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
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 /* Allow access to a raw mixing buffer (For IRIX 6.5 and higher) */
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	25 /* patch for IRIX 5 by Georg Schwarz 18/07/2004 */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 #include "SDL_timer.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #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	29 #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	30 #include "../SDL_audio_c.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 #include "SDL_irixaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	34 #ifndef AL_RESOURCE /* as a test whether we use the old IRIX audio libraries */
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	35 #define OLD_IRIX_AUDIO
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	36 #define alClosePort(x) ALcloseport(x)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	37 #define alFreeConfig(x) ALfreeconfig(x)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	38 #define alGetFillable(x) ALgetfillable(x)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	39 #define alNewConfig() ALnewconfig()
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	40 #define alOpenPort(x,y,z) ALopenport(x,y,z)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	41 #define alSetChannels(x,y) ALsetchannels(x,y)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	42 #define alSetQueueSize(x,y) ALsetqueuesize(x,y)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	43 #define alSetSampFmt(x,y) ALsetsampfmt(x,y)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	44 #define alSetWidth(x,y) ALsetwidth(x,y)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	45 #endif
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	46
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 /* Audio driver functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 static int AL_OpenAudio(_THIS, SDL_AudioSpec *spec);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 static void AL_WaitAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	50 static void AL_PlayAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 static Uint8 *AL_GetAudioBuf(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 static void AL_CloseAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 /* Audio driver bootstrap functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56 static int Audio_Available(void)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 return 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 static void Audio_DeleteDevice(SDL_AudioDevice *device)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	63 SDL_free(device->hidden);
3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	64 SDL_free(device);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 static SDL_AudioDevice *Audio_CreateDevice(int devindex)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69 SDL_AudioDevice *this;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	70
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 /* Initialize all variables that we clean on shutdown */
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	72 this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73 if ( this ) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	74 SDL_memset(this, 0, (sizeof *this));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 this->hidden = (struct SDL_PrivateAudioData *)
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	76 SDL_malloc((sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	77 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78 if ( (this == NULL) \|\| (this->hidden == NULL) ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 SDL_OutOfMemory();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80 if ( this ) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	81 SDL_free(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	82 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	83 return(0);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	85 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	87 /* Set the function pointers */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	88 this->OpenAudio = AL_OpenAudio;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 this->WaitAudio = AL_WaitAudio;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	90 this->PlayAudio = AL_PlayAudio;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	91 this->GetAudioBuf = AL_GetAudioBuf;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	92 this->CloseAudio = AL_CloseAudio;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	93
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	94 this->free = Audio_DeleteDevice;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	95
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	96 return this;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	97 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	98
148 8758b8d42cd9 Audio subsystem no longer assumes sun audio API on UNIX systems Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	99 AudioBootStrap DMEDIA_bootstrap = {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	100 "AL", "IRIX DMedia audio",
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	101 Audio_Available, Audio_CreateDevice
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	102 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	103
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	104
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	105 void static AL_WaitAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	106 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107 Sint32 timeleft;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109 timeleft = this->spec.samples - alGetFillable(audio_port);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 if ( timeleft > 0 ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	111 timeleft /= (this->spec.freq/1000);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112 SDL_Delay((Uint32)timeleft);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	115
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 static void AL_PlayAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118 /* Write the audio data out */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119 if ( alWriteFrames(audio_port, mixbuf, this->spec.samples) < 0 ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	120 /* Assume fatal error, for now */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	121 this->enabled = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	122 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	123 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	124
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	125 static Uint8 *AL_GetAudioBuf(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	126 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 return(mixbuf);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	128 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130 static void AL_CloseAudio(_THIS)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	131 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132 if ( mixbuf != NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	133 SDL_FreeAudioMem(mixbuf);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	134 mixbuf = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	135 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136 if ( audio_port != NULL ) {
605 6399f4e90211 IRIX patches from Andrea Suatoni Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	137 alClosePort(audio_port);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	138 audio_port = NULL;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	142 static int AL_OpenAudio(_THIS, SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143 {
3852 5b5e549382b3 Removed some new 1.3 symbols from code backported to 1.2. Ryan C. Gordon <icculus@icculus.org> parents: 3851 diff changeset	144 Uint16 test_format = SDL_FirstAudioFormat(spec->format);
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	145 long width = 0;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	146 long fmt = 0;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	147 int valid = 0;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	148
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	149 #ifdef OLD_IRIX_AUDIO
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	150 {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	151 long audio_param[2];
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	152 audio_param[0] = AL_OUTPUT_RATE;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	153 audio_param[1] = spec->freq;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	154 valid = (ALsetparams(AL_DEFAULT_DEVICE, audio_param, 2) < 0);
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	155 }
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	156 #else
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	157 {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	158 ALpv audio_param;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	159 audio_param.param = AL_RATE;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	160 audio_param.value.i = spec->freq;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	161 valid = (alSetParams(AL_DEFAULT_OUTPUT, &audio_param, 1) < 0);
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	162 }
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	163 #endif
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	164
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	165 while ((!valid) && (test_format)) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	166 valid = 1;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	167 spec->format = test_format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	169 switch (test_format) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	170 case AUDIO_S8:
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	171 width = AL_SAMPLE_8;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	172 fmt = AL_SAMPFMT_TWOSCOMP;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	173 break;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	174
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	175 case AUDIO_S16SYS:
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	176 width = AL_SAMPLE_16;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	177 fmt = AL_SAMPFMT_TWOSCOMP;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	178 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	180 default:
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	181 valid = 0;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	182 test_format = SDL_NextAudioFormat();
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	183 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184 }
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	185
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	186 if (valid) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	187 ALconfig audio_config = alNewConfig();
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	188 valid = 0;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	189 if (audio_config) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	190 if (alSetChannels(audio_config, spec->channels) < 0) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	191 if (spec->channels > 2) { /* can't handle > stereo? */
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	192 spec->channels = 2; /* try again below. */
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	193 }
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	194 }
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	195
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	196 if ((alSetSampFmt(audio_config, fmt) >= 0) &&
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	197 ((!width) \|\| (alSetWidth(audio_config, width) >= 0)) &&
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	198 (alSetQueueSize(audio_config, spec->samples * 2) >= 0) &&
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	199 (alSetChannels(audio_config, spec->channels) >= 0)) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	201 audio_port = alOpenPort("SDL audio", "w", audio_config);
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	202 if (audio_port == NULL) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	203 /* docs say AL_BAD_CHANNELS happens here, too. */
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	204 int err = oserror();
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	205 if (err == AL_BAD_CHANNELS) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	206 spec->channels = 2;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	207 alSetChannels(audio_config, spec->channels);
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	208 audio_port = alOpenPort("SDL audio", "w",
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	209 audio_config);
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	210 }
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	211 }
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	212
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	213 if (audio_port != NULL) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	214 valid = 1;
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	215 }
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	216 }
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	217
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	218 alFreeConfig(audio_config);
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	219 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220 }
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	221 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	223 if (!valid) {
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	224 SDL_SetError("Unsupported audio format");
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	225 return (-1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 /* Update the fragment size as size in bytes */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229 SDL_CalculateAudioSpec(spec);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231 /* Allocate mixing buffer */
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	232 mixbuf = (Uint8 *) SDL_AllocAudioMem(spec->size);
405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	233 if (mixbuf == NULL) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	234 SDL_OutOfMemory();
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	235 return (-1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	237 SDL_memset(mixbuf, spec->silence, spec->size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	238
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	239 /* We're ready to rock and roll. :-) */
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	240 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	241 }
3851 405a192b68e7 Backport from 1.3: most of the audio drivers can now handle data Ryan C. Gordon <icculus@icculus.org> parents: 1402 diff changeset	242

Mercurial > sdl-ios-xcode

annotate src/audio/dmedia/SDL_irixaudio.c @ 4203:7e5486073044 SDL-1.2