If the velocity is 0, skip the remainder.
If we're not in range, skip the remainder.
No functional change.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
i → used_offset
iveloc → initial_velocity
res → result
vdiff → velocity_diff
vfac → velocity_factor
tmp → tracker_velocity
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
We can modify fdx/fdy in-place rather than requiring dx/dy as well. And the
decision to soften can be made in the caller (unless decided by the velocity
state).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
And res to result.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Don't confuse users with a return type of short, that's even less indicative
that it returns 0/non-0 than "int".
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
This is the best explanation I can come up with, but it seems to hold true
for my example values.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
The two directions returned by this calculation are always the two boundary
conditions. Since we don't do quadrants but octants, the flagged ones are
45° each. e.g. an angle of 35° flags E and NE.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Use enums for the direction bits, not hardcoded bitfield values that are
added up.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
CARD32 is being returned by GetTimeInMilis(), so use it consistently.
Signed-off-by: Simon Thum <simon.thum@gmx.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This intends to clean up the predictable accel struct
from purely scheme-related things like input properties,
as they would be useless in other use cases such
as wheel acceleration.
Signed-off-by: Simon Thum <simon.thum@gmx.de>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Simon Thum <simon.thum@gmx.de>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This makes it possible to init a scheme in one init call, so we
get rid of the tightly coupled two-phase init used before.
Signed-off-by: Simon Thum <simon.thum@gmx.de>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This patch has been generated by the following Coccinelle semantic patch:
@@
expression E;
@@
- if (E != NULL) {
- free(E);
(
- E = NULL;
|
- E = 0;
)
- }
+ free(E);
+ E = NULL;
Signed-off-by: Cyril Brulebois <kibi@debian.org>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This patch was generated by the following Perl code:
perl -i -pe 's/([^_])return\s*\(\s*([^(]+?)\s*\)s*;(\s+(\n))?/$1return $2;$4/g;'
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
The only remaining X-functions used in server are XNF*, the rest is converted to
plain alloc/calloc/realloc/free/strdup.
X* functions are still exported from server and x* macros are still defined in
header file, so both ABI and API are not affected by this change.
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
In the process, fixes a memory leak in CloseDevice, and an unchecked
memory allocation in InitializePredictableAccelerationProperties.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
This profile is inspired by the accel code removed from the wacom driver.
It ascends from zero to acceleration, maxing out at threshold. This means you
can control the slope using threshold, which wasn't possible in wacom.
For sanity's sake, threshold should grow with acceleration.
Works best with adaptive deceleration, since otherwise it only generates
acceleration above 1, causing seldom pixel skips.
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
InitValuatorClassDeviceStruct always initializes with the default profile.
The default profile allocs data and adds a few properties which become
obsolete if the profile is changed lateron by the driver.
The property handlers are stored in the device's devPrivates and cleaned up.
Ideally, the property handler ID's could be stored somewhere more obvious,
but that seems to require breaking the ABI.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Simon Thum <simon.thum@gmx.de>
Event alloc_arg: Called allocation function "XIPropToInt" on "ptr" [details]
167 rc = XIPropToInt(val, &nelem, &ptr);
Event leaked_storage: Variable "ptr" goes out of scope
This makes the ptr accel api actually sensible from a driver
perspective, since it avoids superfluous device lookups.
Also, makes independent accel contexts possible.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
newer gcc's warn against how this cast is done (though it eludes me why),
and lrintf() is also faster especially on insane processors like the P4
(http://www.mega-nerd.com/FPcast).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This is a shorthand for disabling acceleration, while retaining the
possiblity to use constant deceleration. If constant deceleration is
also unused, it will optimize motion processing.
Other possiblities to deactivate acceleration were quite hidden,
and didn't always work as expected. E.g. xset m 1 1 would retain
adaptive deceleration, while xset m 1 0 would not (in the default
profile).
Also removes the 'reserved' profile; it was unused and it's trivial
to add new ones anyway.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
newer gcc's warn against how this cast is done (though it eludes me why),
and lrintf() is also faster especially on insane processors like the P4
(http://www.mega-nerd.com/FPcast).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This didn't really work as intended, but did amazingly well thanks
to roundf() hiding the defect. Cheers!
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This didn't really work as intended, but did amazingly well thanks
to roundf() hiding the defect. Cheers!
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Replace multi-stage filtering with simple linear velocity,
tracked several instances backwards. A heuristic ensures
only approximately linear motion is considered, so velocity
remains valid in any case. Numerical stability is much
better, and nothing changes to people who didn't tune the
advanced features of the previous algorithm.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The algorithm is split in a 2D-specific and a general part.
This potentially allows to accelerate more than just screen motion.
A state machine is intoduced to make code more explicit and readable.
It also improves handling of 'phase 1' mickeys when axial correction
kicks in (corner case).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Note: properties don't need to be cleaned up, the DIX does it for us anyway.
Data that is stored in properties is cleaned up by the property system.
Handlers, etc. don't need to be unregistered while cleaning up, as they get
deleted when the device is removed anyway.
Signed-off-by: Peter Hutterer <peter.hutterer@redhat.com>
Signed-off-by: Simon Thum <simon.thum@gmx.de>
