On 28 May 2003 at 9:25, Jaroslav Kysela wrote:
> On Tue, 27 May 2003, Eliot Blennerhassett wrote:
>
> > this patch enables alsamixer to adjust controls correctly where the min
value is
> > negative (non-zero?)
> >
> > I have tested with my controls that have ranges of -100,0 and -10,22 and it
> > seems to work OK.
>
> It seems that only removal of condition 'if volume >= 0' is sufficient.
Jaroslav,
I think the other change is necessary too.
Mixer conv returns a value between min and max. Input vol1 is the percentage
step. In existing code returned vol1 is assumed to be that step converted into
the units of the control. When min is non-zero this is not true.\
For example mixer_conv(2,0,100,-100,0) returns -98
Subtracting min==-100 gives the correct result of (-98 -(-100))=+2
I suspect that every control except mine has min==0
vol1 = mixer_conv(vol1, 0, 100, min, max);
+ vol1 -= min; // convert value to a delta in units of the volume control.
if (vol1 <= 0)
regards
Eliot
Eliot Blennerhassett
AudioScience Inc.
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