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

annotate src/audio/bsd/SDL_bsdaudio.c @ 2661:d38309be5178 gsoc2008_audio_resampling

The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out.

author	Aaron Wishnick <schnarf@gmail.com>
date	Wed, 02 Jul 2008 08:04:50 +0000
parents	2e36e0ecde33
children	e27bdcc80744

rev	line source
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	3 Copyright (C) 1997-2004 Sam Lantinga
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Library General Public
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2 of the License, or (at your option) any later version.
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Library General Public License for more details.
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Library General Public
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 #include "SDL_config.h"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 /*
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25 * Driver for native OpenBSD/NetBSD audio(4).
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26 * vedge@vedge.com.ar.
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 #include <errno.h>
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 #include <unistd.h>
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31 #include <fcntl.h>
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32 #include <sys/time.h>
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 #include <sys/ioctl.h>
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 #include <sys/stat.h>
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35 #include <sys/types.h>
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 #include <sys/audioio.h>
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 #include "SDL_timer.h"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 #include "SDL_audio.h"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 #include "../SDL_audiomem.h"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41 #include "../SDL_audio_c.h"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 #include "../SDL_audiodev_c.h"
1583 95451df282c3 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1567 diff changeset	43 #include "SDL_bsdaudio.h"
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 /* The tag name used by NetBSD/OpenBSD audio */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 #ifdef __NetBSD__
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	47 #define BSD_AUDIO_DRIVER_NAME "netbsd"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48 #define BSD_AUDIO_DRIVER_DESC "Native NetBSD audio"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49 #else
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50 #define BSD_AUDIO_DRIVER_NAME "openbsd"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51 #define BSD_AUDIO_DRIVER_DESC "Native OpenBSD audio"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52 #endif
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 /* Open the audio device for playback, and don't block if busy */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 /* #define USE_BLOCKING_WRITES */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 /* Use timer for synchronization */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 /* #define USE_TIMER_SYNC */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	60 /* #define DEBUG_AUDIO */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 /* #define DEBUG_AUDIO_STREAM */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 #ifdef USE_BLOCKING_WRITES
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	64 #define OPEN_FLAGS_OUTPUT O_WRONLY
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	65 #define OPEN_FLAGS_INPUT O_RDONLY
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 #else
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	67 #define OPEN_FLAGS_OUTPUT (O_WRONLY\|O_NONBLOCK)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	68 #define OPEN_FLAGS_INPUT (O_RDONLY\|O_NONBLOCK)
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 #endif
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	71 /* !!! FIXME: so much cut and paste with dsp/dma drivers... */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	72 static char **outputDevices = NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	73 static int outputDeviceCount = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	74 static char **inputDevices = NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	75 static int inputDeviceCount = 0;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	77 static inline void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	78 free_device_list(char **devs, int count)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	79 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	80 SDL_FreeUnixAudioDevices(devs, count);
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 }
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	83 static inline void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	84 build_device_list(int iscapture, char **devs, int count)
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	86 const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	87 free_device_list(devs, count);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	88 SDL_EnumUnixAudioDevices(flags, 0, NULL, devs, count);
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 }
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	91 static inline void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	92 build_device_lists(void)
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	94 build_device_list(0, &outputDevices, &outputDeviceCount);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	95 build_device_list(1, &inputDevices, &inputDeviceCount);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	96 }
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	99 static inline void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	100 free_device_lists(void)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	101 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	102 free_device_list(&outputDevices, &outputDeviceCount);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	103 free_device_list(&inputDevices, &inputDeviceCount);
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 }
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 static void
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	108 BSDAUDIO_Deinitialize(void)
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	110 free_device_lists();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	111 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	112
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	114 static int
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	115 BSDAUDIO_DetectDevices(int iscapture)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	116 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	117 if (iscapture) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	118 build_device_list(1, &inputDevices, &inputDeviceCount);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	119 return inputDeviceCount;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	120 } else {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	121 build_device_list(0, &outputDevices, &outputDeviceCount);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	122 return outputDeviceCount;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	123 }
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	125 return 0; /* shouldn't ever hit this. */
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 }
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	128 static const char *
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	129 BSDAUDIO_GetDeviceName(int index, int iscapture)
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	131 if ((iscapture) && (index < inputDeviceCount)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	132 return inputDevices[index];
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	133 } else if ((!iscapture) && (index < outputDeviceCount)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	134 return outputDevices[index];
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	135 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	136
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	137 SDL_SetError("No such device");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	138 return NULL;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139 }
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	141
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 static void
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	143 BSDAUDIO_Status(_THIS)
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 {
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 #ifdef DEBUG_AUDIO
2065 2e36e0ecde33 @#$% indent Sam Lantinga <slouken@libsdl.org> parents: 2064 diff changeset	146 /* INDENT-OFF */
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 audio_info_t info;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	149 if (ioctl(this->hidden->audio_fd, AUDIO_GETINFO, &info) < 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: 1583 diff changeset	150 fprintf(stderr, "AUDIO_GETINFO failed.\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	151 return;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	153 fprintf(stderr, "\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	154 "[play/record info]\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	155 "buffer size : %d bytes\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	156 "sample rate : %i Hz\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	157 "channels : %i\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	158 "precision : %i-bit\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	159 "encoding : 0x%x\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	160 "seek : %i\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	161 "sample count : %i\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	162 "EOF count : %i\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	163 "paused : %s\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	164 "error occured : %s\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	165 "waiting : %s\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	166 "active : %s\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	167 "",
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	168 info.play.buffer_size,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	169 info.play.sample_rate,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	170 info.play.channels,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	171 info.play.precision,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	172 info.play.encoding,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	173 info.play.seek,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	174 info.play.samples,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	175 info.play.eof,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	176 info.play.pause ? "yes" : "no",
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	177 info.play.error ? "yes" : "no",
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	178 info.play.waiting ? "yes" : "no",
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	179 info.play.active ? "yes" : "no");
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	180
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	181 fprintf(stderr, "\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	182 "[audio info]\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	183 "monitor_gain : %i\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	184 "hw block size : %d bytes\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	185 "hi watermark : %i\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	186 "lo watermark : %i\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	187 "audio mode : %s\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	188 "",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	189 info.monitor_gain,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	190 info.blocksize,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	191 info.hiwat, info.lowat,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	192 (info.mode == AUMODE_PLAY) ? "PLAY"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	193 : (info.mode = AUMODE_RECORD) ? "RECORD"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	194 : (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL" : "?"));
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	195 /* INDENT-ON */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	196 #endif /* DEBUG_AUDIO */
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	197 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	198
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	199
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	200 /* This function waits until it is possible to write a full sound buffer */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	201 static void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	202 BSDAUDIO_WaitDevice(_THIS)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	203 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	204 #ifndef USE_BLOCKING_WRITES /* Not necessary when using blocking writes */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	205 /* See if we need to use timed audio synchronization */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	206 if (this->hidden->frame_ticks) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	207 /* Use timer for general audio synchronization */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	208 Sint32 ticks;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	209
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	210 ticks =
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	211 ((Sint32) (this->hidden->next_frame - SDL_GetTicks())) -
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	212 FUDGE_TICKS;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	213 if (ticks > 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	214 SDL_Delay(ticks);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	215 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	216 } else {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	217 /* Use select() for audio synchronization */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	218 fd_set fdset;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	219 struct timeval timeout;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	220
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	221 FD_ZERO(&fdset);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	222 FD_SET(this->hidden->audio_fd, &fdset);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	223 timeout.tv_sec = 10;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	224 timeout.tv_usec = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	225 #ifdef DEBUG_AUDIO
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	226 fprintf(stderr, "Waiting for audio to get ready\n");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	227 #endif
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	228 if (select(this->hidden->audio_fd + 1, NULL, &fdset, NULL, &timeout)
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	229 <= 0) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	230 const char *message =
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	231 "Audio timeout - buggy audio driver? (disabled)";
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	232 /* In general we should never print to the screen,
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	233 but in this case we have no other way of letting
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	234 the user know what happened.
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	235 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	236 fprintf(stderr, "SDL: %s\n", message);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	237 this->enabled = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	238 /* Don't try to close - may hang */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	239 this->hidden->audio_fd = -1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	240 #ifdef DEBUG_AUDIO
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	241 fprintf(stderr, "Done disabling audio\n");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	242 #endif
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	243 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	244 #ifdef DEBUG_AUDIO
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	245 fprintf(stderr, "Ready!\n");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	246 #endif
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	247 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	248 #endif /* !USE_BLOCKING_WRITES */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	249 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	250
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	251 static void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	252 BSDAUDIO_PlayDevice(_THIS)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	253 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	254 int written, p = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	255
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	256 /* Write the audio data, checking for EAGAIN on broken audio drivers */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	257 do {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	258 written = write(this->hidden->audio_fd,
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	259 &this->hidden->mixbuf[p], this->hidden->mixlen - p);
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	260
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	261 if (written > 0)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	262 p += written;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	263 if (written == -1 && errno != 0 && errno != EAGAIN && errno != EINTR) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	264 /* Non recoverable error has occurred. It should be reported!!! */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	265 perror("audio");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	266 break;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	267 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	268
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	269 if (p < written
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	270 \|\| ((written < 0) && ((errno == 0) \|\| (errno == EAGAIN)))) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	271 SDL_Delay(1); /* Let a little CPU time go by */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	272 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	273 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	274 while (p < written);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	275
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	276 /* If timer synchronization is enabled, set the next write frame */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	277 if (this->hidden->frame_ticks) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	278 this->hidden->next_frame += this->hidden->frame_ticks;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	279 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	280
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	281 /* If we couldn't write, assume fatal error for now */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	282 if (written < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	283 this->enabled = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	284 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	285 #ifdef DEBUG_AUDIO
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	286 fprintf(stderr, "Wrote %d bytes of audio data\n", written);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	287 #endif
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	288 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	289
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	290 static Uint8 *
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	291 BSDAUDIO_GetDeviceBuf(_THIS)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	292 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	293 return (this->hidden->mixbuf);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	294 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	295
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	296 static void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	297 BSDAUDIO_CloseDevice(_THIS)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	298 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	299 if (this->hidden != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	300 if (this->hidden->mixbuf != NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	301 SDL_FreeAudioMem(this->hidden->mixbuf);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	302 this->hidden->mixbuf = NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	303 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	304 if (this->hidden->audio_fd >= 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	305 close(this->hidden->audio_fd);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	306 this->hidden->audio_fd = -1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	307 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	308 SDL_free(this->hidden);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	309 this->hidden = NULL;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	310 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	311 }
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 static int
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	314 BSDAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	316 const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	317 SDL_AudioFormat format = 0;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	318 audio_info_t info;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	320 /* We don't care what the devname is...we'll try to open anything. */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	321 /* ...but default to first name in the list... */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	322 if (devname == NULL) {
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	323 if (((iscapture) && (inputDeviceCount == 0)) \|\|
866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	324 ((!iscapture) && (outputDeviceCount == 0))) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	325 SDL_SetError("No such audio device");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	326 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	327 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	328 devname = ((iscapture) ? inputDevices[0] : outputDevices[0]);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	329 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	330
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	331 /* Initialize all variables that we clean on shutdown */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	332 this->hidden = (struct SDL_PrivateAudioData *)
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	333 SDL_malloc((sizeof *this->hidden));
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	334 if (this->hidden == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	335 SDL_OutOfMemory();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	336 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	337 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	338 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	339
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	340 /* Open the audio device */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	341 this->hidden->audio_fd = open(devname, flags, 0);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	342 if (this->hidden->audio_fd < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	343 SDL_SetError("Couldn't open %s: %s", devname, strerror(errno));
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	344 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	345 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	346
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	347 AUDIO_INITINFO(&info);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	348
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	349 /* Calculate the final parameters for this audio specification */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	350 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: 1583 diff changeset	351
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	352 /* Set to play mode */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	353 info.mode = AUMODE_PLAY;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	354 if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	355 BSDAUDIO_CloseDevice(this);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	356 SDL_SetError("Couldn't put device into play mode");
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	357 return 0;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	358 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	359
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360 AUDIO_INITINFO(&info);
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	361 for (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: 1583 diff changeset	362 format; 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: 1583 diff changeset	363 switch (format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	364 case AUDIO_U8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	365 info.play.encoding = AUDIO_ENCODING_ULINEAR;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	366 info.play.precision = 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	367 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	368 case AUDIO_S8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	369 info.play.encoding = AUDIO_ENCODING_SLINEAR;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	370 info.play.precision = 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	371 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	372 case AUDIO_S16LSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	373 info.play.encoding = AUDIO_ENCODING_SLINEAR_LE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	374 info.play.precision = 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	375 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	376 case AUDIO_S16MSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	377 info.play.encoding = AUDIO_ENCODING_SLINEAR_BE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	378 info.play.precision = 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	379 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	380 case AUDIO_U16LSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	381 info.play.encoding = AUDIO_ENCODING_ULINEAR_LE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	382 info.play.precision = 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	383 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	384 case AUDIO_U16MSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	385 info.play.encoding = AUDIO_ENCODING_ULINEAR_BE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	386 info.play.precision = 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	387 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	388 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	389 continue;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	390 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	391
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	392 if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) == 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: 1583 diff changeset	393 break;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	394 }
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395 }
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	397 if (!format) {
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	398 BSDAUDIO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	399 SDL_SetError("No supported encoding for 0x%x", this->spec.format);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	400 return 0;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	401 }
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	402
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	403 this->spec.format = format;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	404
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	405 AUDIO_INITINFO(&info);
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	406 info.play.channels = this->spec.channels;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	407 if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) == -1) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	408 this->spec.channels = 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	409 }
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	410 AUDIO_INITINFO(&info);
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	411 info.play.sample_rate = this->spec.freq;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	412 info.blocksize = this->spec.size;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413 info.hiwat = 5;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	414 info.lowat = 3;
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	415 (void) ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	416 (void) ioctl(this->hidden->audio_fd, AUDIO_GETINFO, &info);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	417 this->spec.freq = info.play.sample_rate;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418 /* Allocate mixing buffer */
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	419 this->hidden->mixlen = this->spec.size;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	420 this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	421 if (this->hidden->mixbuf == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	422 BSDAUDIO_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	423 SDL_OutOfMemory();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	424 return 0;
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	425 }
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	426 SDL_memset(this->hidden->mixbuf, this->spec.silence, 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: 1583 diff changeset	427
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	428 BSDAUDIO_Status(this);
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 /* We're ready to rock and roll. :-) */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	431 return (0);
1567 12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	432 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	433
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	434 static int
2060 866052b01ee5 indent is evil Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	435 BSDAUDIO_Init(SDL_AudioDriverImpl * impl)
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	436 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	437 /* Set the function pointers */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	438 impl->DetectDevices = BSDAUDIO_DetectDevices;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	439 impl->GetDeviceName = BSDAUDIO_GetDeviceName;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	440 impl->OpenDevice = BSDAUDIO_OpenDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	441 impl->PlayDevice = BSDAUDIO_PlayDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	442 impl->WaitDevice = BSDAUDIO_WaitDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	443 impl->GetDeviceBuf = BSDAUDIO_GetDeviceBuf;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	444 impl->CloseDevice = BSDAUDIO_CloseDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	445 impl->Deinitialize = BSDAUDIO_Deinitialize;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	446
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	447 build_device_lists();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	448 return 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	449 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	450
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	451
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	452 AudioBootStrap BSD_AUDIO_bootstrap = {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	453 BSD_AUDIO_DRIVER_NAME, BSD_AUDIO_DRIVER_DESC, BSDAUDIO_Init, 0
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	454 };
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 1982 diff changeset	455
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1583 diff changeset	456 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/bsd/SDL_bsdaudio.c @ 2661:d38309be5178 gsoc2008_audio_resampling