diff options
Diffstat (limited to 'xorg-server/include/ptrveloc.h')
-rw-r--r-- | xorg-server/include/ptrveloc.h | 288 |
1 files changed, 144 insertions, 144 deletions
diff --git a/xorg-server/include/ptrveloc.h b/xorg-server/include/ptrveloc.h index 081de448f..6ca309c8c 100644 --- a/xorg-server/include/ptrveloc.h +++ b/xorg-server/include/ptrveloc.h @@ -1,144 +1,144 @@ -/*
- *
- * Copyright © 2006-2011 Simon Thum simon dot thum at gmx dot de
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef POINTERVELOCITY_H
-#define POINTERVELOCITY_H
-
-#include <input.h>
-
-/* constants for acceleration profiles */
-
-#define AccelProfileNone -1
-#define AccelProfileClassic 0
-#define AccelProfileDeviceSpecific 1
-#define AccelProfilePolynomial 2
-#define AccelProfileSmoothLinear 3
-#define AccelProfileSimple 4
-#define AccelProfilePower 5
-#define AccelProfileLinear 6
-#define AccelProfileSmoothLimited 7
-#define AccelProfileLAST AccelProfileSmoothLimited
-
-/* fwd */
-struct _DeviceVelocityRec;
-
-/**
- * profile
- * returns actual acceleration depending on velocity, acceleration control,...
- */
-typedef float (*PointerAccelerationProfileFunc)
- (DeviceIntPtr dev, struct _DeviceVelocityRec* vel,
- float velocity, float threshold, float accelCoeff);
-
-/**
- * a motion history, with just enough information to
- * calc mean velocity and decide which motion was along
- * a more or less straight line
- */
-typedef struct _MotionTracker {
- int dx, dy; /* accumulated delta for each axis */
- int time; /* time of creation */
- int dir; /* initial direction bitfield */
-} MotionTracker, *MotionTrackerPtr;
-
-/**
- * Contains all data needed to implement mouse ballistics
- */
-typedef struct _DeviceVelocityRec {
- MotionTrackerPtr tracker;
- int num_tracker;
- int cur_tracker; /* current index */
- float velocity; /* velocity as guessed by algorithm */
- float last_velocity; /* previous velocity estimate */
- int last_dx; /* last time-difference */
- int last_dy ; /* phase of last/current estimate */
- float corr_mul; /* config: multiply this into velocity */
- float const_acceleration; /* config: (recipr.) const deceleration */
- float min_acceleration; /* config: minimum acceleration */
- short reset_time; /* config: reset non-visible state after # ms */
- short use_softening; /* config: use softening of mouse values */
- float max_rel_diff; /* config: max. relative difference */
- float max_diff; /* config: max. difference */
- int initial_range; /* config: max. offset used as initial velocity */
- Bool average_accel; /* config: average acceleration over velocity */
- PointerAccelerationProfileFunc Profile;
- PointerAccelerationProfileFunc deviceSpecificProfile;
- void* profile_private;/* extended data, see SetAccelerationProfile() */
- struct { /* to be able to query this information */
- int profile_number;
- } statistics;
-} DeviceVelocityRec, *DeviceVelocityPtr;
-
-/**
- * contains the run-time data for the predictable scheme, that is, a
- * DeviceVelocityPtr and the property handlers.
- */
-typedef struct _PredictableAccelSchemeRec {
- DeviceVelocityPtr vel;
- long* prop_handlers;
- int num_prop_handlers;
-} PredictableAccelSchemeRec, *PredictableAccelSchemePtr;
-
-extern _X_EXPORT void
-InitVelocityData(DeviceVelocityPtr vel);
-
-extern _X_EXPORT void
-InitTrackers(DeviceVelocityPtr vel, int ntracker);
-
-extern _X_EXPORT BOOL
-ProcessVelocityData2D(DeviceVelocityPtr vel, int dx, int dy, int time);
-
-extern _X_EXPORT float
-BasicComputeAcceleration(DeviceIntPtr dev, DeviceVelocityPtr vel,
- float velocity, float threshold, float acc);
-
-extern _X_EXPORT void
-FreeVelocityData(DeviceVelocityPtr vel);
-
-extern _X_EXPORT int
-SetAccelerationProfile(DeviceVelocityPtr vel, int profile_num);
-
-extern _X_EXPORT DeviceVelocityPtr
-GetDevicePredictableAccelData(DeviceIntPtr dev);
-
-extern _X_EXPORT void
-SetDeviceSpecificAccelerationProfile(DeviceVelocityPtr vel,
- PointerAccelerationProfileFunc profile);
-
-extern _X_INTERNAL void
-AccelerationDefaultCleanup(DeviceIntPtr dev);
-
-extern _X_INTERNAL Bool
-InitPredictableAccelerationScheme(DeviceIntPtr dev,
- struct _ValuatorAccelerationRec* protoScheme);
-
-extern _X_INTERNAL void
-acceleratePointerPredictable(DeviceIntPtr dev, ValuatorMask* val,
- CARD32 evtime);
-
-extern _X_INTERNAL void
-acceleratePointerLightweight(DeviceIntPtr dev, ValuatorMask* val,
- CARD32 evtime);
-
-#endif /* POINTERVELOCITY_H */
+/* + * + * Copyright © 2006-2011 Simon Thum simon dot thum at gmx dot de + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifndef POINTERVELOCITY_H +#define POINTERVELOCITY_H + +#include <input.h> + +/* constants for acceleration profiles */ + +#define AccelProfileNone -1 +#define AccelProfileClassic 0 +#define AccelProfileDeviceSpecific 1 +#define AccelProfilePolynomial 2 +#define AccelProfileSmoothLinear 3 +#define AccelProfileSimple 4 +#define AccelProfilePower 5 +#define AccelProfileLinear 6 +#define AccelProfileSmoothLimited 7 +#define AccelProfileLAST AccelProfileSmoothLimited + +/* fwd */ +struct _DeviceVelocityRec; + +/** + * profile + * returns actual acceleration depending on velocity, acceleration control,... + */ +typedef float (*PointerAccelerationProfileFunc) + (DeviceIntPtr dev, struct _DeviceVelocityRec* vel, + float velocity, float threshold, float accelCoeff); + +/** + * a motion history, with just enough information to + * calc mean velocity and decide which motion was along + * a more or less straight line + */ +typedef struct _MotionTracker { + int dx, dy; /* accumulated delta for each axis */ + int time; /* time of creation */ + int dir; /* initial direction bitfield */ +} MotionTracker, *MotionTrackerPtr; + +/** + * Contains all data needed to implement mouse ballistics + */ +typedef struct _DeviceVelocityRec { + MotionTrackerPtr tracker; + int num_tracker; + int cur_tracker; /* current index */ + float velocity; /* velocity as guessed by algorithm */ + float last_velocity; /* previous velocity estimate */ + int last_dx; /* last time-difference */ + int last_dy ; /* phase of last/current estimate */ + float corr_mul; /* config: multiply this into velocity */ + float const_acceleration; /* config: (recipr.) const deceleration */ + float min_acceleration; /* config: minimum acceleration */ + short reset_time; /* config: reset non-visible state after # ms */ + short use_softening; /* config: use softening of mouse values */ + float max_rel_diff; /* config: max. relative difference */ + float max_diff; /* config: max. difference */ + int initial_range; /* config: max. offset used as initial velocity */ + Bool average_accel; /* config: average acceleration over velocity */ + PointerAccelerationProfileFunc Profile; + PointerAccelerationProfileFunc deviceSpecificProfile; + void* profile_private;/* extended data, see SetAccelerationProfile() */ + struct { /* to be able to query this information */ + int profile_number; + } statistics; +} DeviceVelocityRec, *DeviceVelocityPtr; + +/** + * contains the run-time data for the predictable scheme, that is, a + * DeviceVelocityPtr and the property handlers. + */ +typedef struct _PredictableAccelSchemeRec { + DeviceVelocityPtr vel; + long* prop_handlers; + int num_prop_handlers; +} PredictableAccelSchemeRec, *PredictableAccelSchemePtr; + +extern _X_EXPORT void +InitVelocityData(DeviceVelocityPtr vel); + +extern _X_EXPORT void +InitTrackers(DeviceVelocityPtr vel, int ntracker); + +extern _X_EXPORT BOOL +ProcessVelocityData2D(DeviceVelocityPtr vel, int dx, int dy, int time); + +extern _X_EXPORT float +BasicComputeAcceleration(DeviceIntPtr dev, DeviceVelocityPtr vel, + float velocity, float threshold, float acc); + +extern _X_EXPORT void +FreeVelocityData(DeviceVelocityPtr vel); + +extern _X_EXPORT int +SetAccelerationProfile(DeviceVelocityPtr vel, int profile_num); + +extern _X_EXPORT DeviceVelocityPtr +GetDevicePredictableAccelData(DeviceIntPtr dev); + +extern _X_EXPORT void +SetDeviceSpecificAccelerationProfile(DeviceVelocityPtr vel, + PointerAccelerationProfileFunc profile); + +extern _X_INTERNAL void +AccelerationDefaultCleanup(DeviceIntPtr dev); + +extern _X_INTERNAL Bool +InitPredictableAccelerationScheme(DeviceIntPtr dev, + struct _ValuatorAccelerationRec* protoScheme); + +extern _X_INTERNAL void +acceleratePointerPredictable(DeviceIntPtr dev, ValuatorMask* val, + CARD32 evtime); + +extern _X_INTERNAL void +acceleratePointerLightweight(DeviceIntPtr dev, ValuatorMask* val, + CARD32 evtime); + +#endif /* POINTERVELOCITY_H */ |