Commit f60dcd2d authored by Maarten Lankhorst's avatar Maarten Lankhorst Committed by Alexandre Julliard

winealsa: Introduce mixer code.

parent e4743041
......@@ -10,6 +10,7 @@ C_SRCS = \
alsa.c \
dsoutput.c \
midi.c \
mixer.c \
waveinit.c \
wavein.c \
waveout.c
......
/*
* Alsa MIXER Wine Driver for Linux
* Very loosely based on wineoss mixer driver
*
* Copyright 2007 Maarten Lankhorst
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <fcntl.h>
#include <errno.h>
#include <assert.h>
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winerror.h"
#include "winuser.h"
#include "winnls.h"
#include "mmddk.h"
#include "mmsystem.h"
#include "alsa.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(mixer);
#ifdef HAVE_ALSA
/* Generic notes:
* In windows it seems to be required for all controls to have a volume switch
* In alsa that's optional
*
* I assume for playback controls, that there is always a playback volume switch available
* Mute is optional
*
* For capture controls, it is needed that there is a capture switch and a volume switch,
* It doesn't matter wether it is a playback volume switch or a capture volume switch.
* The code will first try to get/adjust capture volume, if that fails it tries playback volume
* It is not pretty, but under my 3 test cards it seems that there is no other choice:
* Most capture controls don't have a capture volume setting
*
* MUX means that only capture source can be exclusively selected,
* MIXER means that multiple sources can be selected simultaneously.
*/
static const char * getMessage(UINT uMsg)
{
static char str[64];
#define MSG_TO_STR(x) case x: return #x;
switch (uMsg){
MSG_TO_STR(DRVM_INIT);
MSG_TO_STR(DRVM_EXIT);
MSG_TO_STR(DRVM_ENABLE);
MSG_TO_STR(DRVM_DISABLE);
MSG_TO_STR(MXDM_GETDEVCAPS);
MSG_TO_STR(MXDM_GETLINEINFO);
MSG_TO_STR(MXDM_GETNUMDEVS);
MSG_TO_STR(MXDM_OPEN);
MSG_TO_STR(MXDM_CLOSE);
MSG_TO_STR(MXDM_GETLINECONTROLS);
MSG_TO_STR(MXDM_GETCONTROLDETAILS);
MSG_TO_STR(MXDM_SETCONTROLDETAILS);
default: break;
}
#undef MSG_TO_STR
sprintf(str, "UNKNOWN(%08x)", uMsg);
return str;
}
/* Mixer device */
typedef struct mixer
{
snd_mixer_t *mix;
WCHAR mixername[MAXPNAMELEN];
int chans, dests;
} mixer;
#define MAX_MIXERS 32
static int cards = 0;
static mixer mixdev[MAX_MIXERS];
/* Is this control suited for showing up? */
static int blacklisted(snd_mixer_elem_t *elem)
{
const char *name = snd_mixer_selem_get_name(elem);
BOOL blisted = 0;
if (!snd_mixer_selem_has_playback_volume(elem) &&
(!snd_mixer_selem_has_capture_volume(elem) ||
!snd_mixer_selem_has_capture_switch(elem)))
blisted = 1;
TRACE("%s: %x\n", name, blisted);
return blisted;
}
static void ALSA_MixerInit(void)
{
int x, mixnum = 0;
for (x = 0; x < MAX_MIXERS; ++x)
{
int card, err;
char cardind[6], cardname[10];
BOOL hascapt=0, hasmast=0;
snd_ctl_t *ctl;
snd_mixer_elem_t *elem, *mastelem = NULL, *captelem = NULL;
snd_ctl_card_info_t *info = NULL;
snd_ctl_card_info_alloca(&info);
snprintf(cardind, sizeof(cardind), "%d", x);
card = snd_card_get_index(cardind);
if (card < 0 || card > MAX_MIXERS - 1)
continue;
snprintf(cardname, sizeof(cardname), "hw:%d", card);
err = snd_ctl_open(&ctl, cardname, 0);
if (err < 0)
{
WARN("Cannot open card: %s\n", snd_strerror(err));
continue;
}
err = snd_ctl_card_info(ctl, info);
if (err < 0)
{
WARN("Cannot get card info: %s\n", snd_strerror(err));
snd_ctl_close(ctl);
continue;
}
MultiByteToWideChar(CP_UNIXCP, 0, snd_ctl_card_info_get_name(info), -1, mixdev[mixnum].mixername, sizeof(mixdev[mixnum].mixername)/sizeof(WCHAR));
snd_ctl_close(ctl);
err = snd_mixer_open(&mixdev[mixnum].mix,0);
if (err < 0)
{
WARN("Error occured opening mixer: %s\n", snd_strerror(err));
continue;
}
err = snd_mixer_attach(mixdev[mixnum].mix, cardname);
if (err < 0)
goto eclose;
err = snd_mixer_selem_register(mixdev[mixnum].mix, NULL, NULL);
if (err < 0)
goto eclose;
err = snd_mixer_load(mixdev[mixnum].mix);
if (err < 0)
goto eclose;
mixdev[mixnum].chans = 0;
mixdev[mixnum].dests = 1; /* Master, Capture will be enabled if needed */
for (elem = snd_mixer_first_elem(mixdev[mixnum].mix); elem; elem = snd_mixer_elem_next(elem))
if (!strcasecmp(snd_mixer_selem_get_name(elem), "Master"))
{
mastelem = elem;
++hasmast;
}
else if (!strcasecmp(snd_mixer_selem_get_name(elem), "Capture"))
{
captelem = elem;
++hascapt;
}
else if (!blacklisted(elem))
{
if (snd_mixer_selem_has_capture_switch(elem))
{
++mixdev[mixnum].chans;
mixdev[mixnum].dests = 2;
}
if (snd_mixer_selem_has_playback_volume(elem))
++mixdev[mixnum].chans;
}
/* If there is only 'Capture' and 'Master', this device is not worth it */
if (!mixdev[mixnum].chans)
{
WARN("No channels found, skipping device!\n");
snd_mixer_close(mixdev[mixnum].mix);
continue;
}
/* If there are no 'Capture' and 'Master', something is wrong */
if (hasmast != 1 || hascapt != 1)
{
if (hasmast != 1)
FIXME("Should have found 1 channel for 'Master', but instead found %d\n", hasmast);
if (hascapt != 1)
FIXME("Should have found 1 channel for 'Capture', but instead found %d\n", hascapt);
goto eclose;
}
mixdev[mixnum].chans += 2; /* Capture/Master */
TRACE("%s: Amount of controls: %i/%i, name: %s\n", cardname, mixdev[mixnum].dests, mixdev[mixnum].chans, debugstr_w(mixdev[mixnum].mixername));
mixnum++;
continue;
eclose:
WARN("Error occured initialising mixer: %s\n", snd_strerror(err));
snd_mixer_close(mixdev[mixnum].mix);
}
cards = mixnum;
TRACE("\n");
}
static void ALSA_MixerExit(void)
{
int x;
TRACE("\n");
for (x = 0; x < cards; ++x)
snd_mixer_close(mixdev[x].mix);
cards = 0;
}
#endif /*HAVE_ALSA*/
/**************************************************************************
* mxdMessage (WINEALSA.3)
*/
DWORD WINAPI ALSA_mxdMessage(UINT wDevID, UINT wMsg, DWORD_PTR dwUser,
DWORD_PTR dwParam1, DWORD_PTR dwParam2)
{
#ifdef HAVE_ALSA
DWORD ret;
TRACE("(%04X, %s, %08lX, %08lX, %08lX);\n", wDevID, getMessage(wMsg),
dwUser, dwParam1, dwParam2);
switch (wMsg)
{
case DRVM_INIT: ALSA_MixerInit(); ret = MMSYSERR_NOERROR; break;
case DRVM_EXIT: ALSA_MixerExit(); ret = MMSYSERR_NOERROR; break;
/* All taken care of by driver initialisation */
/* Unimplemented, and not needed */
case DRVM_ENABLE:
case DRVM_DISABLE:
ret = MMSYSERR_NOERROR; break;
case MXDM_GETNUMDEVS:
ret = cards; break;
default:
WARN("unknown message %s!\n", getMessage(wMsg));
return MMSYSERR_NOTSUPPORTED;
}
TRACE("Returning %08X\n", ret);
return ret;
#else /*HAVE_ALSA*/
TRACE("(%04X, %04X, %08lX, %08lX, %08lX);\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
return MMSYSERR_NOTENABLED;
#endif /*HAVE_ALSA*/
}
@ stdcall -private DriverProc(long long long long long) ALSA_DriverProc
@ stdcall -private midMessage(long long long long long) ALSA_midMessage
@ stdcall -private modMessage(long long long long long) ALSA_modMessage
@ stdcall -private mxdMessage(long long long long long) ALSA_mxdMessage
@ stdcall -private widMessage(long long long long long) ALSA_widMessage
@ stdcall -private wodMessage(long long long long long) ALSA_wodMessage
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