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Convert the resolution range into something resembling an exponential one

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Because 8000 vs 8050 dpi shouldn't matter...

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer
2017-10-13 11:43:00 +10:00
committed by Benjamin Tissoires
parent f592cabcd7
commit 94320099b0
1 changed files with 13 additions and 5 deletions
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18
src/libratbag-private.h
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@@ -478,16 +478,13 @@ static inline void
ratbag_resolution_set_dpi_list_from_range(struct ratbag_resolution *res,
unsigned int min, unsigned int max)
{
const unsigned int stepsize = 50;
unsigned int stepsize = 50;
unsigned int dpi = min;
bool maxed_out = false;
res->ndpis = 0;
/* FIXME: this should use an exponential approach, because who cares
* about 8200 vs 8250 dpi. */
while (res->ndpis < ARRAY_LENGTH(res->dpis)) {
unsigned int dpi = min + res->ndpis * stepsize;
if (dpi > (unsigned)max) {
maxed_out = true;
break;
@@ -495,6 +492,17 @@ ratbag_resolution_set_dpi_list_from_range(struct ratbag_resolution *res,
res->dpis[res->ndpis] = dpi;
res->ndpis++;
if (dpi < 1000)
stepsize = 50;
else if (dpi < 2600)
stepsize = 100;
else if (dpi < 5000)
stepsize = 200;
else
stepsize = 500;
dpi += stepsize;
}
if (!maxed_out)