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Fix unexpected abort of alsamixer

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Fixed unexpected abort of alsamixer when no playback or capture elements
are available.  Also fixed the wrong use of temporary array in
displaying item name.
This commit is contained in:
Takashi Iwai 2005-06-15 12:49:07 +00:00
parent 7b0c847f1a
commit 11f789c4f9
1 changed files with 32 additions and 37 deletions
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69
alsamixer/alsamixer.c
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@ -721,14 +721,9 @@ static void draw_blank(int x, int y, int lines)
mvaddstr (y - i, x, " ");
}
/* show the information of the focused item */
static void display_item_info(int elem_index, snd_mixer_selem_id_t *sid, char *extra_info)
/* show the current view mode */
static void display_view_info(void)
{
char string[64], idxstr[10];
int idx;
int i, xlen = mixer_max_x - 8;
if (xlen > sizeof(string) - 1)
xlen = sizeof(string) - 1;
mixer_dc (DC_PROMPT);
mvaddstr (3, 2, "View: Playback Capture All ");
mixer_dc (DC_TEXT);
@ -743,6 +738,16 @@ static void display_item_info(int elem_index, snd_mixer_selem_id_t *sid, char *e
mvaddstr (3, 27, "[All]");
break;
}
}
/* show the information of the focused item */
static void display_item_info(int elem_index, snd_mixer_selem_id_t *sid, char *extra_info)
{
char string[64], idxstr[10];
int idx;
int i, xlen = mixer_max_x - 8;
if (xlen > sizeof(string) - 1)
xlen = sizeof(string) - 1;
mixer_dc (DC_PROMPT);
mvaddstr (4, 2, "Item: ");
mixer_dc (DC_TEXT);
@ -788,7 +793,7 @@ static void display_enum_list(snd_mixer_elem_t *elem, int y, int x)
{
int cury, ch, err;
draw_blank(x, y, mixer_cbar_height + 5);
draw_blank(x, y, mixer_cbar_height + (mixer_view == VIEW_PLAYBACK ? 5 : 6));
cury = y - 4;
for (ch = 0; ch < 2; ch++) {
@ -962,26 +967,21 @@ mixer_update_cbar (int elem_index)
snd_mixer_selem_get_playback_switch(elem, chn_right, &swr);
extra_info = !swl && !swr ? " [Off]" : "";
}
if (mixer_type[elem_index] == MIXER_ELEM_ENUM) {
while (1) {
unsigned int eidx, err, length;
char tmp[50];
tmp[0]=' ';
tmp[1]='[';
err = snd_mixer_selem_get_enum_item(elem, 0, &eidx);
if (err < 0)
break;
if (snd_mixer_selem_get_enum_item_name(elem, eidx, sizeof(tmp) - 3, tmp+2) < 0)
break;
tmp[48] = 0;
if (type == MIXER_ELEM_ENUM) {
unsigned int eidx, length;
char tmp[50];
tmp[0]=' ';
tmp[1]='[';
if (! snd_mixer_selem_get_enum_item(elem, 0, &eidx) &&
! snd_mixer_selem_get_enum_item_name(elem, eidx, sizeof(tmp) - 3, tmp+2)) {
tmp[48] = 0;
length=strlen(tmp);
tmp[length]=']';
tmp[length+1]=0;
extra_info = tmp;
break;
}
display_item_info(elem_index, sid, tmp);
} else
display_item_info(elem_index, sid, extra_info);
}
display_item_info(elem_index, sid, extra_info);
}
/* get channel bar position
@ -1078,6 +1078,7 @@ mixer_update_cbars (void)
static int o_y = 0;
int i, x, y;
display_view_info();
if (!mixer_cbar_get_pos (mixer_focus_elem, &x, &y))
{
if (mixer_focus_elem < mixer_first_vis_elem)
@ -1932,6 +1933,7 @@ mixer_iteration (void)
/* ignore */
break;
case 27: /* Escape */
case KEY_F (10):
finished = 1;
key = 0;
break;
@ -1963,11 +1965,6 @@ mixer_iteration (void)
mixer_view = mixer_view_saved = VIEW_PLAYBACK;
mixer_changed_state=1;
mixer_reinit ();
if (mixer_n_view_elems == 0) {
mixer_view = mixer_view_saved = VIEW_CAPTURE;
mixer_changed_state=1;
mixer_reinit ();
}
}
key = 0;
break;
@ -1978,11 +1975,6 @@ mixer_iteration (void)
mixer_view = mixer_view_saved = VIEW_CAPTURE;
mixer_changed_state=1;
mixer_reinit ();
if (mixer_n_view_elems == 0) {
mixer_view = mixer_view_saved = VIEW_PLAYBACK;
mixer_changed_state=1;
mixer_reinit ();
}
}
key = 0;
break;
@ -2190,7 +2182,10 @@ mixer_iteration (void)
if (old_view != mixer_view)
mixer_clear (FALSE);
mixer_focus_elem = CLAMP (mixer_focus_elem, 0, mixer_n_view_elems - 1);
if (! mixer_n_view_elems)
mixer_focus_elem = 0;
else
mixer_focus_elem = CLAMP (mixer_focus_elem, 0, mixer_n_view_elems - 1);
return finished;
}
@ -2270,7 +2265,7 @@ main (int argc,
mixer_init ();
mixer_reinit ();
if (mixer_n_view_elems == 0) {
if (mixer_n_elems == 0) {
fprintf(stderr, "No mixer elems found\n");
mixer_abort (ERR_NONE, "", 0);
}
@ -2321,4 +2316,4 @@ main (int argc,
while (!mixer_iteration ());
mixer_abort (ERR_NONE, "", 0);
};
}