#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <memory.h>
#include "alMain.h"
#include "alu.h"
#include <alsa/asoundlib.h>

Macros
#define	CHECK(x) if((funcerr=#x),(err=(x)) < 0) goto error

#define	CHECK(x) if((funcerr=#x),(err=(x)) < 0) goto error

#define	CHECK(x) if((funcerr=#x),(err=(x)) < 0) goto error

Functions
void	alc_alsa_deinit (void)

ALCboolean	alc_alsa_init (BackendFuncs *func_list)

void	alc_alsa_probe (enum DevProbe type)

static ALCuint	alsa_available_samples (ALCdevice *Device)

static ALCenum	alsa_capture_samples (ALCdevice Device, ALCvoid Buffer, ALCuint Samples)

static void	alsa_close_capture (ALCdevice *Device)

static void	alsa_close_playback (ALCdevice *device)

static ALint64	alsa_get_latency (ALCdevice *device)

static ALCboolean	alsa_load (void)

static ALCenum	alsa_open_capture (ALCdevice Device, const ALCchar deviceName)

static ALCenum	alsa_open_playback (ALCdevice device, const ALCchar deviceName)

static ALCboolean	alsa_reset_playback (ALCdevice *device)

static void	alsa_start_capture (ALCdevice *Device)

static ALCboolean	alsa_start_playback (ALCdevice *device)

static void	alsa_stop_capture (ALCdevice *Device)

static void	alsa_stop_playback (ALCdevice *device)

static ALuint	ALSANoMMapProc (ALvoid *ptr)

static ALuint	ALSAProc (ALvoid *ptr)

static const char *	prefix_name (snd_pcm_stream_t stream)

static DevMap *	probe_devices (snd_pcm_stream_t stream, ALuint *count)

static int	verify_state (snd_pcm_t *handle)

Variables
static DevMap *	allCaptureDevNameMap

static DevMap *	allDevNameMap

static const BackendFuncs	alsa_funcs

static const ALCchar	alsaDevice [] = "ALSA Default"

static ALuint	numCaptureDevNames

static ALuint	numDevNames

Macro Definition Documentation

#define CHECK ( x ) if((funcerr=#x),(err=(x)) < 0) goto error

Referenced by alsa_open_capture(), alsa_reset_playback(), and alsa_start_playback().

#define CHECK ( x ) if((funcerr=#x),(err=(x)) < 0) goto error

Function Documentation

void alc_alsa_deinit ( void )

Definition at line 1308 of file alsa.c.

References allCaptureDevNameMap, allDevNameMap, free, i, NULL, numCaptureDevNames, and numDevNames.

ALCboolean alc_alsa_init ( BackendFuncs * func_list )

Definition at line 1300 of file alsa.c.

References ALC_FALSE, ALC_TRUE, alsa_funcs, and alsa_load().

void alc_alsa_probe ( enum DevProbe type )

Definition at line 1337 of file alsa.c.

References ALL_DEVICE_PROBE, allCaptureDevNameMap, allDevNameMap, AppendAllDevicesList(), AppendCaptureDeviceList(), CAPTURE_DEVICE_PROBE, free, i, numCaptureDevNames, numDevNames, and probe_devices().

static ALCuint alsa_available_samples ( ALCdevice * Device )

static

Definition at line 1164 of file alsa.c.

References aluHandleDisconnect(), ALCdevice_struct::Connected, ERR, ALCdevice_struct::ExtraData, RingBufferSize(), and WriteRingBuffer().

Referenced by alsa_stop_capture().

static ALCenum alsa_capture_samples	(	ALCdevice *	Device,
		ALCvoid *	Buffer,
		ALCuint	Samples
	)

static

Definition at line 1090 of file alsa.c.

References ALC_NO_ERROR, aluHandleDisconnect(), ALCdevice_struct::Connected, DevFmtUByte, ERR, ALCdevice_struct::ExtraData, ALCdevice_struct::FmtType, free, memmove, memset, NULL, and ReadRingBuffer().

Referenced by alsa_stop_capture().

static void alsa_close_capture ( ALCdevice * Device )

static

Definition at line 1063 of file alsa.c.

References DestroyRingBuffer(), ALCdevice_struct::ExtraData, free, and NULL.

static void alsa_close_playback ( ALCdevice * device )

static

Definition at line 688 of file alsa.c.

References ALCdevice_struct::ExtraData, free, and NULL.

static ALint64 alsa_get_latency ( ALCdevice * device )

static

Definition at line 1268 of file alsa.c.

References ERR, ALCdevice_struct::ExtraData, ALCdevice_struct::Frequency, and maxi64().

static ALCboolean alsa_load ( void )

static

Definition at line 188 of file alsa.c.

References ALC_FALSE, ALC_TRUE, and LOAD_FUNC.

Referenced by alc_alsa_init().

static ALCenum alsa_open_capture	(	ALCdevice *	Device,
		const ALCchar *	deviceName
	)

static

static ALCenum alsa_open_playback	(	ALCdevice *	device,
		const ALCchar *	deviceName
	)

static

Definition at line 640 of file alsa.c.

References ALC_INVALID_VALUE, ALC_NO_ERROR, ALC_OUT_OF_MEMORY, allDevNameMap, alsaDevice, calloc, ALCdevice_struct::DeviceName, ERR, ALCdevice_struct::ExtraData, free, GetConfigValue(), idx, NULL, numDevNames, probe_devices(), and strdup().

static ALCboolean alsa_reset_playback ( ALCdevice * device )

static

Definition at line 697 of file alsa.c.

References ALC_FALSE, ALC_TRUE, ChannelsFromDevFmt(), CHECK, COUNTOF, DevFmtByte, DevFmtFloat, DevFmtInt, DevFmtMono, DevFmtQuad, DevFmtShort, DevFmtStereo, DevFmtUByte, DevFmtUInt, DevFmtUShort, DevFmtX51, DevFmtX71, ERR, error, ALCdevice_struct::ExtraData, ALCdevice_struct::FmtChans, ALCdevice_struct::FmtType, ALCdevice_struct::Frequency, GetConfigValueBool(), k, NULL, ALCdevice_struct::NumUpdates, SetDefaultChannelOrder(), and ALCdevice_struct::UpdateSize.

static void alsa_start_capture ( ALCdevice * Device )

static

Definition at line 1075 of file alsa.c.

References AL_TRUE, aluHandleDisconnect(), ERR, and ALCdevice_struct::ExtraData.

static ALCboolean alsa_start_playback ( ALCdevice * device )

static

Definition at line 847 of file alsa.c.

References ALC_FALSE, ALC_TRUE, ALSANoMMapProc(), ALSAProc(), CHECK, ERR, error, ALCdevice_struct::ExtraData, free, malloc, NULL, StartThread(), and ALCdevice_struct::UpdateSize.

static void alsa_stop_capture ( ALCdevice * Device )

static

Definition at line 1235 of file alsa.c.

References AL_FALSE, alsa_available_samples(), alsa_capture_samples(), ERR, ALCdevice_struct::ExtraData, and realloc.

static void alsa_stop_playback ( ALCdevice * device )

static

Definition at line 901 of file alsa.c.

References ALCdevice_struct::ExtraData, free, NULL, and StopThread().

static ALuint ALSANoMMapProc ( ALvoid * ptr )

static

Definition at line 545 of file alsa.c.

References ALCdevice_Lock, ALCdevice_Unlock, aluHandleDisconnect(), aluMixData(), ERR, ALCdevice_struct::ExtraData, ALCdevice_struct::NumUpdates, ret, SetRTPriority(), ALCdevice_struct::UpdateSize, verify_state(), and WARN.

Referenced by alsa_start_playback().

static ALuint ALSAProc ( ALvoid * ptr )

static

Definition at line 454 of file alsa.c.

References ALCdevice_Lock, ALCdevice_Unlock, aluHandleDisconnect(), aluMixData(), ERR, ALCdevice_struct::ExtraData, NULL, ALCdevice_struct::NumUpdates, SetRTPriority(), ALCdevice_struct::UpdateSize, verify_state(), and WARN.

Referenced by alsa_start_playback().

static const char* prefix_name ( snd_pcm_stream_t stream )

static

Definition at line 310 of file alsa.c.

References assert.

Referenced by probe_devices().

static DevMap* probe_devices	(	snd_pcm_stream_t	stream,
		ALuint *	count
	)

static

Definition at line 316 of file alsa.c.

References alsaDevice, ConfigValueStr(), ERR, GetConfigValue(), idx, malloc, prefix_name(), realloc, strdup(), and TRACE.

Referenced by alc_alsa_probe(), alsa_open_capture(), and alsa_open_playback().

static int verify_state ( snd_pcm_t * handle )

static

Definition at line 422 of file alsa.c.

Referenced by ALSANoMMapProc(), and ALSAProc().

Variable Documentation

DevMap* allCaptureDevNameMap

static

Definition at line 306 of file alsa.c.

Referenced by alc_alsa_deinit(), alc_alsa_probe(), and alsa_open_capture().

DevMap* allDevNameMap

static

Definition at line 304 of file alsa.c.

Referenced by alc_alsa_deinit(), alc_alsa_probe(), and alsa_open_playback().

const BackendFuncs alsa_funcs

static

Initial value:

= {
    alsa_open_playback,
    alsa_close_playback,
    alsa_reset_playback,
    alsa_start_playback,
    alsa_stop_playback,
    alsa_open_capture,
    alsa_close_capture,
    alsa_start_capture,
    alsa_stop_capture,
    alsa_capture_samples,
    alsa_available_samples,
    ALCdevice_LockDefault,
    ALCdevice_UnlockDefault,
    alsa_get_latency
}

Definition at line 1283 of file alsa.c.

Referenced by alc_alsa_init().

const ALCchar alsaDevice[] = "ALSA Default"

static

OpenAL cross platform audio library Copyright (C) 1999-2007 by authors. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details.

You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Or go to http://www.gnu.org/copyleft/lgpl.html

Definition at line 33 of file alsa.c.

Referenced by alsa_open_capture(), alsa_open_playback(), and probe_devices().

ALuint numCaptureDevNames

static

Definition at line 307 of file alsa.c.

Referenced by alc_alsa_deinit(), alc_alsa_probe(), and alsa_open_capture().

ALuint numDevNames

static

Definition at line 305 of file alsa.c.

Referenced by alc_alsa_deinit(), alc_alsa_probe(), and alsa_open_playback().

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation