19682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 29682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL - Simple DirectMedia Layer 39682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Copyright (C) 1997-2012 Sam Lantinga 49682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 59682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is free software; you can redistribute it and/or 69682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall modify it under the terms of the GNU Lesser General Public 79682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License as published by the Free Software Foundation; either 89682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall version 2.1 of the License, or (at your option) any later version. 99682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is distributed in the hope that it will be useful, 119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall but WITHOUT ANY WARRANTY; without even the implied warranty of 129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Lesser General Public License for more details. 149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall You should have received a copy of the GNU Lesser General Public 169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License along with this library; if not, write to the Free Software 179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Sam Lantinga 209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall slouken@libsdl.org 219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_config.h" 239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Get the name of the audio device we use for output */ 259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if SDL_AUDIO_DRIVER_BSD || SDL_AUDIO_DRIVER_OSS || SDL_AUDIO_DRIVER_SUNAUDIO 279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <fcntl.h> 299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <sys/types.h> 309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <sys/stat.h> 319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_stdinc.h" 339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_audiodev_c.h" 349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifndef _PATH_DEV_DSP 369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if defined(__NETBSD__) || defined(__OPENBSD__) 379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define _PATH_DEV_DSP "/dev/audio" 389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define _PATH_DEV_DSP "/dev/dsp" 409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifndef _PATH_DEV_DSP24 439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define _PATH_DEV_DSP24 "/dev/sound/dsp" 449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifndef _PATH_DEV_AUDIO 469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define _PATH_DEV_AUDIO "/dev/audio" 479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic) 519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall const char *audiodev; 539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int audio_fd; 549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall char audiopath[1024]; 559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Figure out what our audio device is */ 579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( ((audiodev=SDL_getenv("SDL_PATH_DSP")) == NULL) && 589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall ((audiodev=SDL_getenv("AUDIODEV")) == NULL) ) { 599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( classic ) { 609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audiodev = _PATH_DEV_AUDIO; 619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } else { 629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct stat sb; 639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Added support for /dev/sound/\* in Linux 2.4 */ 659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( ((stat("/dev/sound", &sb) == 0) && S_ISDIR(sb.st_mode)) && 669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall ((stat(_PATH_DEV_DSP24, &sb) == 0) && S_ISCHR(sb.st_mode)) ) { 679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audiodev = _PATH_DEV_DSP24; 689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } else { 699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audiodev = _PATH_DEV_DSP; 709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audio_fd = open(audiodev, flags, 0); 749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* If the first open fails, look for other devices */ 769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( (audio_fd < 0) && (SDL_strlen(audiodev) < (sizeof(audiopath)-3)) ) { 779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int exists, instance; 789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct stat sb; 799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall instance = 1; 819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall do { /* Don't use errno ENOENT - it may not be thread-safe */ 829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_snprintf(audiopath, SDL_arraysize(audiopath), 839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall "%s%d", audiodev, instance++); 849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall exists = 0; 859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( stat(audiopath, &sb) == 0 ) { 869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall exists = 1; 879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audio_fd = open(audiopath, flags, 0); 889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } while ( exists && (audio_fd < 0) ); 909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audiodev = audiopath; 919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( path != NULL ) { 939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_strlcpy(path, audiodev, maxlen); 949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall path[maxlen-1] = '\0'; 959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(audio_fd); 979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#elif SDL_AUDIO_DRIVER_PAUD 1009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Get the name of the audio device we use for output */ 1029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <sys/types.h> 1049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <sys/stat.h> 1059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_stdinc.h" 1079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_audiodev_c.h" 1089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifndef _PATH_DEV_DSP 1109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define _PATH_DEV_DSP "/dev/%caud%c/%c" 1119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 1129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallchar devsettings[][3] = 1149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 'p', '0', '1' }, { 'p', '0', '2' }, { 'p', '0', '3' }, { 'p', '0', '4' }, 1169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 'p', '1', '1' }, { 'p', '1', '2' }, { 'p', '1', '3' }, { 'p', '1', '4' }, 1179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 'p', '2', '1' }, { 'p', '2', '2' }, { 'p', '2', '3' }, { 'p', '2', '4' }, 1189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 'p', '3', '1' }, { 'p', '3', '2' }, { 'p', '3', '3' }, { 'p', '3', '4' }, 1199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 'b', '0', '1' }, { 'b', '0', '2' }, { 'b', '0', '3' }, { 'b', '0', '4' }, 1209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 'b', '1', '1' }, { 'b', '1', '2' }, { 'b', '1', '3' }, { 'b', '1', '4' }, 1219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 'b', '2', '1' }, { 'b', '2', '2' }, { 'b', '2', '3' }, { 'b', '2', '4' }, 1229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 'b', '3', '1' }, { 'b', '3', '2' }, { 'b', '3', '3' }, { 'b', '3', '4' }, 1239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { '\0', '\0', '\0' } 1249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall}; 1259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic int OpenUserDefinedDevice(char *path, int maxlen, int flags) 1279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall const char *audiodev; 1299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int audio_fd; 1309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Figure out what our audio device is */ 1329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ((audiodev=SDL_getenv("SDL_PATH_DSP")) == NULL) { 1339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audiodev=SDL_getenv("AUDIODEV"); 1349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( audiodev == NULL ) { 1369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return -1; 1379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audio_fd = open(audiodev, flags, 0); 1399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( path != NULL ) { 1409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_strlcpy(path, audiodev, maxlen); 1419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall path[maxlen-1] = '\0'; 1429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return audio_fd; 1449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic) 1479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct stat sb; 1499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int audio_fd; 1509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall char audiopath[1024]; 1519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int cycle; 1529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audio_fd = OpenUserDefinedDevice(path,maxlen,flags); 1549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( audio_fd != -1 ) { 1559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return audio_fd; 1569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall cycle = 0; 1599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall while( devsettings[cycle][0] != '\0' ) { 1609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_snprintf( audiopath, SDL_arraysize(audiopath), 1619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall _PATH_DEV_DSP, 1629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall devsettings[cycle][0], 1639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall devsettings[cycle][1], 1649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall devsettings[cycle][2]); 1659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( stat(audiopath, &sb) == 0 ) { 1679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall audio_fd = open(audiopath, flags, 0); 1689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( audio_fd > 0 ) { 1699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( path != NULL ) { 1709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_strlcpy( path, audiopath, maxlen ); 1719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return audio_fd; 1739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return -1; 1779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* Audio driver selection */ 180