winealsa: Add special case for microphone source in mixer.

Some microphones don't have a capture control, but a playback control instead. So use the playback volume, but still register it as capture volume.

winealsa: Add special case for microphone source in mixer.
7034b92d · Maarten Lankhorst · Alexandre Julliard · 82a199bc · 7034b92d
Commit 7034b92d authored Dec 24, 2007 by Maarten Lankhorst Committed by Alexandre Julliard Dec 24, 2007
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Showing with 14 additions and 3 deletions

mixer.c dlls/winealsa.drv/mixer.c +14 -3

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--- a/dlls/winealsa.drv/mixer.c
+++ b/dlls/winealsa.drv/mixer.c
@@ -371,7 +371,8 @@ static void filllines(mixer *mmixer, snd_mixer_elem_t *mastelem, snd_mixer_elem_
            const char * name = snd_mixer_selem_get_name(elem);
            DWORD comp = getcomponenttype(name);

-            if (snd_mixer_selem_has_playback_volume(elem))
+            if (snd_mixer_selem_has_playback_volume(elem) &&
+               (snd_mixer_selem_has_capture_volume(elem) || comp != MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE))
            {
                (++mline)->component = comp;
                MultiByteToWideChar(CP_UNIXCP, 0, name, -1, mline->name, MAXPNAMELEN);
@@ -382,7 +383,7 @@ static void filllines(mixer *mmixer, snd_mixer_elem_t *mastelem, snd_mixer_elem_
            else if (!capt)
                continue;

-            if (capt && snd_mixer_selem_has_capture_volume(elem))
+            if (capt && (snd_mixer_selem_has_capture_volume(elem) || comp == MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE))
            {
                (++mline)->component = comp;
                MultiByteToWideChar(CP_UNIXCP, 0, name, -1, mline->name, MAXPNAMELEN);
@@ -473,9 +474,19 @@ static void ALSA_MixerInit(void)
                captelem = elem;
            else if (!blacklisted(elem))
            {
+                DWORD comp = getcomponenttype(snd_mixer_selem_get_name(elem));
+                DWORD skip = 0;
+
+                /* Work around buggy drivers: Make this a capture control if the name is recognised as a microphone */
                if (snd_mixer_selem_has_capture_volume(elem))
                    ++capcontrols;
-                if (snd_mixer_selem_has_playback_volume(elem))
+                else if (comp == MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE)
+                {
+                    ++capcontrols;
+                    skip = 1;
+                }
+
+                if (!skip && snd_mixer_selem_has_playback_volume(elem))
                {
                    if (!strcasecmp(snd_mixer_selem_get_name(elem), "Headphone") && !headelem)
                        headelem = elem;