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dix: do away with an instance of temporary in-place modification 

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Thomas Jaeger 2009-06-20 20:17:04 -04:00 committed by Peter Hutterer
parent 94cdc1ef0a
commit 5cbd4d3d6e
1 changed files with 9 additions and 10 deletions
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19
dix/getevents.c
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@ -753,6 +753,8 @@ static void
positionSprite(DeviceIntPtr dev, int *x, int *y,
ScreenPtr scr, int *screenx, int *screeny)
{
int old_screenx, old_screeny;
/* scale x&y to screen */
if (dev->valuator->numAxes > 0)
*screenx = rescaleValuatorAxis(*x, dev->valuator->axes + 0, NULL, scr->width);
@ -764,12 +766,11 @@ positionSprite(DeviceIntPtr dev, int *x, int *y,
else
*screeny = dev->last.valuators[1];
dev->last.valuators[0] = *screenx;
dev->last.valuators[1] = *screeny;
old_screenx = *screenx;
old_screeny = *screeny;
/* This takes care of crossing screens for us, as well as clipping
* to the current screen. */
miPointerSetPosition(dev, &dev->last.valuators[0], &dev->last.valuators[1]);
miPointerSetPosition(dev, screenx, screeny);
if (dev->u.master) {
dev->u.master->last.valuators[0] = dev->last.valuators[0];
@ -777,18 +778,16 @@ positionSprite(DeviceIntPtr dev, int *x, int *y,
}
/* Crossed screen? Scale back to device coordiantes */
if(*screenx != dev->last.valuators[0])
if(*screenx != old_screenx)
{
scr = miPointerGetScreen(dev);
*x = rescaleValuatorAxis(dev->last.valuators[0], NULL,
*x = rescaleValuatorAxis(*screenx, NULL,
dev->valuator->axes + 0, scr->width);
*screenx = dev->last.valuators[0];
}
if(*screeny != dev->last.valuators[1])
if(*screeny != old_screeny)
{
scr = miPointerGetScreen(dev);
*screeny = dev->last.valuators[1];
*y = rescaleValuatorAxis(dev->last.valuators[1], NULL,
*y = rescaleValuatorAxis(*screeny, NULL,
dev->valuator->axes + 1, scr->height);
}