[PATCH v2 2/3] dix: extend rescaleValuatorAxis to take a minimum default
Peter Hutterer
peter.hutterer at who-t.net
Wed Oct 12 18:39:39 PDT 2011
Allow rescaling to non-zero based axis ranges as default (for when screen
offsets are non-zero). Currently unused.
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
Changes to v1:
- new patch. this patch wasn't required in the v1 series.
dix/getevents.c | 30 +++++++++++++++---------------
1 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/dix/getevents.c b/dix/getevents.c
index 874189f..548cc8b 100644
--- a/dix/getevents.c
+++ b/dix/getevents.c
@@ -257,10 +257,10 @@ CreateClassesChangedEvent(InternalEvent* event,
*/
static double
rescaleValuatorAxis(double coord, AxisInfoPtr from, AxisInfoPtr to,
- double defmax)
+ double defmin, double defmax)
{
- double fmin = 0.0, fmax = defmax;
- double tmin = 0.0, tmax = defmax;
+ double fmin = defmin, fmax = defmax;
+ double tmin = defmin, tmax = defmax;
if (from && from->min_value < from->max_value) {
fmin = from->min_value;
@@ -309,14 +309,14 @@ updateSlaveDeviceCoords(DeviceIntPtr master, DeviceIntPtr pDev)
pDev->last.valuators[0] = rescaleValuatorAxis(pDev->last.valuators[0],
NULL,
pDev->valuator->axes + 0,
- scr->width);
+ 0, scr->width);
}
if(pDev->valuator->numAxes > 1)
{
pDev->last.valuators[1] = rescaleValuatorAxis(pDev->last.valuators[1],
NULL,
pDev->valuator->axes + 1,
- scr->height);
+ 0, scr->height);
}
/* calculate the other axis as well based on info from the old
@@ -333,7 +333,7 @@ updateSlaveDeviceCoords(DeviceIntPtr master, DeviceIntPtr pDev)
{
double val = pDev->last.valuators[i];
val = rescaleValuatorAxis(val, lastSlave->valuator->axes + i,
- pDev->valuator->axes + i, 0);
+ pDev->valuator->axes + i, 0, 0);
pDev->last.valuators[i] = val;
}
}
@@ -445,7 +445,7 @@ GetMotionHistory(DeviceIntPtr pDev, xTimecoord **buff, unsigned long start,
/* scale to screen coords */
to = &core_axis;
to->max_value = pScreen->width;
- coord = rescaleValuatorAxis(coord, &from, to, pScreen->width);
+ coord = rescaleValuatorAxis(coord, &from, to, 0, pScreen->width);
memcpy(corebuf, &coord, sizeof(INT16));
corebuf++;
@@ -456,7 +456,7 @@ GetMotionHistory(DeviceIntPtr pDev, xTimecoord **buff, unsigned long start,
memcpy(&coord, icbuf++, sizeof(INT32));
to->max_value = pScreen->height;
- coord = rescaleValuatorAxis(coord, &from, to, pScreen->height);
+ coord = rescaleValuatorAxis(coord, &from, to, 0, pScreen->height);
memcpy(corebuf, &coord, sizeof(INT16));
} else if (IsMaster(pDev))
@@ -484,7 +484,7 @@ GetMotionHistory(DeviceIntPtr pDev, xTimecoord **buff, unsigned long start,
from.max_value = pScreen->height;
/* scale from stored range into current range */
- coord = rescaleValuatorAxis(coord, &from, to, 0);
+ coord = rescaleValuatorAxis(coord, &from, to, 0, 0);
memcpy(ocbuf, &coord, sizeof(INT32));
ocbuf++;
}
@@ -770,14 +770,14 @@ scale_from_screen(DeviceIntPtr dev, ValuatorMask *mask)
{
scaled = rescaleValuatorAxis(valuator_mask_get_double(mask, 0),
NULL, dev->valuator->axes + 0,
- scr->width);
+ 0, scr->width);
valuator_mask_set_double(mask, 0, scaled);
}
if (valuator_mask_isset(mask, 1))
{
scaled = rescaleValuatorAxis(valuator_mask_get_double(mask, 1),
NULL, dev->valuator->axes + 1,
- scr->height);
+ 0, scr->height);
valuator_mask_set_double(mask, 1, scaled);
}
}
@@ -823,9 +823,9 @@ positionSprite(DeviceIntPtr dev, int mode, ValuatorMask *mask,
/* scale x&y to screen */
*screenx = rescaleValuatorAxis(x, dev->valuator->axes + 0, NULL,
- scr->width);
+ 0, scr->width);
*screeny = rescaleValuatorAxis(y, dev->valuator->axes + 1, NULL,
- scr->height);
+ 0, scr->height);
tmpx = *screenx;
tmpy = *screeny;
@@ -839,10 +839,10 @@ positionSprite(DeviceIntPtr dev, int mode, ValuatorMask *mask,
*/
if (tmpx != *screenx)
x = rescaleValuatorAxis(*screenx, NULL, dev->valuator->axes + 0,
- scr->width);
+ 0, scr->width);
if (tmpy != *screeny)
y = rescaleValuatorAxis(*screeny, NULL, dev->valuator->axes + 1,
- scr->height);
+ 0, scr->height);
if (valuator_mask_isset(mask, 0))
--
1.7.6.4
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