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Abstract valuator masks through a set of APIs.

Browse source 
This commit introduces an abstraction API for handling masked valuators. The
intent is that drivers just allocate a mask, set the data and pass the mask
to the server. The actual storage type of the mask is hidden from the
drivers.

The new calls for drivers are:
    valuator_mask_new()     /* to allocate a valuator mask */
    valuator_mask_zero()    /* to reset a mask to zero */
    valuator_mask_set()     /* to set a valuator value */

The new interface to the server is
    xf86PostMotionEventM()
    xf86PostButtonEventM()
    xf86PostKeyboardEventM()
    xf86PostProximityEventM()

all taking a mask instead of the valuator array.

The ValuatorMask is currently defined for MAX_VALUATORS fixed size due to
memory allocation restrictions in SIGIO handlers.

For easier review, a lot of the code still uses separate valuator arrays.
This will be fixed in a later patch.

This patch was initially written by Chase Douglas.

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
This commit is contained in:
Peter Hutterer 2010-10-19 13:37:46 +10:00
commit 675f4a8525
15 changed files with 493 additions and 186 deletions
Download patch file Download diff file Expand all files Collapse all files

8
hw/xfree86/common/xf86Xinput.h
View file

@ -115,19 +115,27 @@ extern _X_EXPORT void xf86PostMotionEvent(DeviceIntPtr device, int is_absolute,
int first_valuator, int num_valuators, ...);
extern _X_EXPORT void xf86PostMotionEventP(DeviceIntPtr device, int is_absolute,
int first_valuator, int num_valuators, const int *valuators);
extern _X_EXPORT void xf86PostMotionEventM(DeviceIntPtr device, int is_absolute,
const ValuatorMask *mask);
extern _X_EXPORT void xf86PostProximityEvent(DeviceIntPtr device, int is_in,
int first_valuator, int num_valuators, ...);
extern _X_EXPORT void xf86PostProximityEventP(DeviceIntPtr device, int is_in, int first_valuator,
int num_valuators, const int *valuators);
extern _X_EXPORT void xf86PostProximityEventM(DeviceIntPtr device, int is_in,
const ValuatorMask *mask);
extern _X_EXPORT void xf86PostButtonEvent(DeviceIntPtr device, int is_absolute, int button,
int is_down, int first_valuator, int num_valuators,
...);
extern _X_EXPORT void xf86PostButtonEventP(DeviceIntPtr device, int is_absolute, int button,
int is_down, int first_valuator, int num_valuators,
const int *valuators);
extern _X_EXPORT void xf86PostButtonEventM(DeviceIntPtr device, int is_absolute, int button,
int is_down, const ValuatorMask *mask);
extern _X_EXPORT void xf86PostKeyEvent(DeviceIntPtr device, unsigned int key_code, int is_down,
int is_absolute, int first_valuator, int num_valuators,
...);
extern _X_EXPORT void xf86PostKeyEventM(DeviceIntPtr device, unsigned int key_code, int is_down,
int is_absolute, const ValuatorMask *mask);
extern _X_EXPORT void xf86PostKeyEventP(DeviceIntPtr device, unsigned int key_code, int is_down,
int is_absolute, int first_valuator, int num_valuators,
const int *valuators);