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xserver-multidpi/hw/xfree86/common/xf86Xinput.c
Hans Nieser 55f4c80a4c Xinput: allow non-integer values again for Constant- and AdaptiveDeceleration 
This was initially fixed by commit 3932a84857
but then (presumably not intentionally) undone by commit
1d54479cb3 .

Signed-off-by: Hans Nieser <hnsr@xs4all.nl>
Signed-off-by: Keith Packard <keithp@keithp.com>
2009-10-27 23:34:11 -07:00

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/*
* Copyright 1995-1999 by Frederic Lepied, France. <Lepied@XFree86.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Frederic Lepied not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Frederic Lepied makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* FREDERIC LEPIED DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL FREDERIC LEPIED BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
* Copyright (c) 2000-2002 by The XFree86 Project, Inc.
*
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of the copyright holder(s)
* and author(s) shall not be used in advertising or otherwise to promote
* the sale, use or other dealings in this Software without prior written
* authorization from the copyright holder(s) and author(s).
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/Xfuncproto.h>
#include <X11/Xmd.h>
#include <X11/extensions/XI.h>
#include <X11/extensions/XIproto.h>
#include <X11/Xatom.h>
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86Xinput.h"
#include "XIstubs.h"
#include "xf86Optrec.h"
#include "mipointer.h"
#include "xf86InPriv.h"
#include "compiler.h"
#include "extinit.h"
#ifdef DPMSExtension
#include <X11/extensions/dpmsconst.h>
#include "dpmsproc.h"
#endif
#include "exevents.h" /* AddInputDevice */
#include "exglobals.h"
#include "eventstr.h"
#include "extnsionst.h"
#include "windowstr.h" /* screenIsSaved */
#include <stdarg.h>
#include <X11/Xpoll.h>
#include "mi.h"
#include <ptrveloc.h> /* dix pointer acceleration */
#include <xserver-properties.h>
#ifdef XFreeXDGA
#include "dgaproc.h"
#endif
#include "xkbsrv.h"
#include "os.h"
EventListPtr xf86Events = NULL;
/**
* Eval config and modify DeviceVelocityRec accordingly
*/
static void
ProcessVelocityConfiguration(DeviceIntPtr pDev, char* devname, pointer list,
DeviceVelocityPtr s)
{
int tempi;
float tempf;
Atom float_prop = XIGetKnownProperty(XATOM_FLOAT);
Atom prop;
if(!s)
return;
/* common settings (available via device properties) */
tempf = xf86SetRealOption(list, "ConstantDeceleration", 1.0);
if(tempf > 1.0){
xf86Msg(X_CONFIG, "%s: (accel) constant deceleration by %.1f\n",
devname, tempf);
prop = XIGetKnownProperty(ACCEL_PROP_CONSTANT_DECELERATION);
XIChangeDeviceProperty(pDev, prop, float_prop, 32,
PropModeReplace, 1, &tempf, FALSE);
}
tempf = xf86SetRealOption(list, "AdaptiveDeceleration", 1.0);
if(tempf > 1.0){
xf86Msg(X_CONFIG, "%s: (accel) adaptive deceleration by %.1f\n",
devname, tempf);
prop = XIGetKnownProperty(ACCEL_PROP_ADAPTIVE_DECELERATION);
XIChangeDeviceProperty(pDev, prop, float_prop, 32,
PropModeReplace, 1, &tempf, FALSE);
}
/* select profile by number */
tempi = xf86SetIntOption(list, "AccelerationProfile",
s->statistics.profile_number);
prop = XIGetKnownProperty(ACCEL_PROP_PROFILE_NUMBER);
if (XIChangeDeviceProperty(pDev, prop, XA_INTEGER, 32,
PropModeReplace, 1, &tempi, FALSE) == Success)
{
xf86Msg(X_CONFIG, "%s: (accel) acceleration profile %i\n", devname,
tempi);
} else {
xf86Msg(X_CONFIG, "%s: (accel) acceleration profile %i is unknown\n",
devname, tempi);
}
/* set scaling */
tempf = xf86SetRealOption(list, "ExpectedRate", 0);
prop = XIGetKnownProperty(ACCEL_PROP_VELOCITY_SCALING);
if(tempf > 0){
tempf = 1000.0 / tempf;
XIChangeDeviceProperty(pDev, prop, float_prop, 32,
PropModeReplace, 1, &tempf, FALSE);
}else{
tempf = xf86SetRealOption(list, "VelocityScale", s->corr_mul);
XIChangeDeviceProperty(pDev, prop, float_prop, 32,
PropModeReplace, 1, &tempf, FALSE);
}
tempi = xf86SetIntOption(list, "VelocityTrackerCount", -1);
if(tempi > 1){
InitTrackers(s, tempi);
}
s->initial_range = xf86SetIntOption(list, "VelocityInitialRange",
s->initial_range);
s->max_diff = xf86SetRealOption(list, "VelocityAbsDiff", s->max_diff);
tempf = xf86SetRealOption(list, "VelocityRelDiff", -1);
if(tempf >= 0){
xf86Msg(X_CONFIG, "%s: (accel) max rel. velocity difference: %.1f%%\n",
devname, tempf*100.0);
s->max_rel_diff = tempf;
}
/* Configure softening. If const deceleration is used, this is expected
* to provide better subpixel information so we enable
* softening by default only if ConstantDeceleration is not used
*/
s->use_softening = xf86SetBoolOption(list, "Softening",
s->const_acceleration == 1.0);
s->average_accel = xf86SetBoolOption(list, "AccelerationProfileAveraging",
s->average_accel);
s->reset_time = xf86SetIntOption(list, "VelocityReset", s->reset_time);
}
static void
ApplyAccelerationSettings(DeviceIntPtr dev){
int scheme;
DeviceVelocityPtr pVel;
LocalDevicePtr local = (LocalDevicePtr)dev->public.devicePrivate;
char* schemeStr;
if(dev->valuator){
schemeStr = xf86SetStrOption(local->options, "AccelerationScheme", "");
scheme = dev->valuator->accelScheme.number;
if(!xf86NameCmp(schemeStr, "predictable"))
scheme = PtrAccelPredictable;
if(!xf86NameCmp(schemeStr, "lightweight"))
scheme = PtrAccelLightweight;
if(!xf86NameCmp(schemeStr, "none"))
scheme = PtrAccelNoOp;
/* reinit scheme if needed */
if(dev->valuator->accelScheme.number != scheme){
if(dev->valuator->accelScheme.AccelCleanupProc){
dev->valuator->accelScheme.AccelCleanupProc(dev);
}
if(InitPointerAccelerationScheme(dev, scheme)){
xf86Msg(X_CONFIG, "%s: (accel) selected scheme %s/%i\n",
local->name, schemeStr, scheme);
}else{
xf86Msg(X_CONFIG, "%s: (accel) could not init scheme %s\n",
local->name, schemeStr);
scheme = dev->valuator->accelScheme.number;
}
}else{
xf86Msg(X_CONFIG, "%s: (accel) keeping acceleration scheme %i\n",
local->name, scheme);
}
xfree(schemeStr);
/* process special configuration */
switch(scheme){
case PtrAccelPredictable:
pVel = GetDevicePredictableAccelData(dev);
ProcessVelocityConfiguration (dev, local->name, local->options,
pVel);
break;
}
}
}
static Bool
xf86SendDragEvents(DeviceIntPtr device)
{
LocalDevicePtr local = (LocalDevicePtr) device->public.devicePrivate;
if (device->button && device->button->buttonsDown > 0)
return (local->flags & XI86_SEND_DRAG_EVENTS);
else
return (TRUE);
}
/***********************************************************************
*
* xf86ProcessCommonOptions --
*
* Process global options.
*
***********************************************************************
*/
void
xf86ProcessCommonOptions(LocalDevicePtr local,
pointer list)
{
if (!xf86SetBoolOption(list, "AlwaysCore", 1) ||
!xf86SetBoolOption(list, "SendCoreEvents", 1) ||
!xf86SetBoolOption(list, "CorePointer", 1) ||
!xf86SetBoolOption(list, "CoreKeyboard", 1)) {
xf86Msg(X_CONFIG, "%s: doesn't report core events\n", local->name);
} else {
local->flags |= XI86_ALWAYS_CORE;
xf86Msg(X_CONFIG, "%s: always reports core events\n", local->name);
}
if (xf86SetBoolOption(list, "SendDragEvents", 1)) {
local->flags |= XI86_SEND_DRAG_EVENTS;
} else {
xf86Msg(X_CONFIG, "%s: doesn't report drag events\n", local->name);
}
/* Backwards compatibility. */
local->history_size = GetMotionHistorySize();
}
/***********************************************************************
*
* xf86ActivateDevice --
*
* Initialize an input device.
*
* Returns TRUE on success, or FALSE otherwise.
***********************************************************************
*/
int
xf86ActivateDevice(LocalDevicePtr local)
{
DeviceIntPtr dev;
if (local->flags & XI86_CONFIGURED) {
dev = AddInputDevice(serverClient, local->device_control, TRUE);
if (dev == NULL)
{
xf86Msg(X_ERROR, "Too many input devices. Ignoring %s\n",
local->name);
local->dev = NULL;
return FALSE;
}
local->atom = MakeAtom(local->type_name,
strlen(local->type_name),
TRUE);
AssignTypeAndName(dev, local->atom, local->name);
dev->public.devicePrivate = (pointer) local;
local->dev = dev;
dev->coreEvents = local->flags & XI86_ALWAYS_CORE;
dev->type = SLAVE;
dev->spriteInfo->spriteOwner = FALSE;
dev->deviceGrab.ActivateGrab = ActivateKeyboardGrab;
dev->deviceGrab.DeactivateGrab = DeactivateKeyboardGrab;
RegisterOtherDevice(dev);
XkbSetExtension(dev, ProcessKeyboardEvent);
if (serverGeneration == 1)
xf86Msg(X_INFO, "XINPUT: Adding extended input device \"%s\" (type: %s)\n",
local->name, local->type_name);
}
return TRUE;
}
/***********************************************************************
*
* Caller: ProcXOpenDevice
*
* This is the implementation-dependent routine to open an input device.
* Some implementations open all input devices when the server is first
* initialized, and never close them. Other implementations open only
* the X pointer and keyboard devices during server initialization,
* and only open other input devices when some client makes an
* XOpenDevice request. This entry point is for the latter type of
* implementation.
*
* If the physical device is not already open, do it here. In this case,
* you need to keep track of the fact that one or more clients has the
* device open, and physically close it when the last client that has
* it open does an XCloseDevice.
*
* The default implementation is to do nothing (assume all input devices
* are opened during X server initialization and kept open).
*
***********************************************************************
*/
void
OpenInputDevice(DeviceIntPtr dev,
ClientPtr client,
int *status)
{
if (!dev->inited)
ActivateDevice(dev, TRUE);
*status = Success;
}
void
CloseInputDevice(DeviceIntPtr dev,
ClientPtr client)
{
}
/****************************************************************************
*
* Caller: ProcXSetDeviceMode
*
* Change the mode of an extension device.
* This function is used to change the mode of a device from reporting
* relative motion to reporting absolute positional information, and
* vice versa.
* The default implementation below is that no such devices are supported.
*
***********************************************************************
*/
int
SetDeviceMode (ClientPtr client, DeviceIntPtr dev, int mode)
{
LocalDevicePtr local = (LocalDevicePtr)dev->public.devicePrivate;
if (local->switch_mode) {
return (*local->switch_mode)(client, dev, mode);
}
else
return BadMatch;
}
/***********************************************************************
*
* Caller: ProcXSetDeviceValuators
*
* Set the value of valuators on an extension input device.
* This function is used to set the initial value of valuators on
* those input devices that are capable of reporting either relative
* motion or an absolute position, and allow an initial position to be set.
* The default implementation below is that no such devices are supported.
*
***********************************************************************
*/
int
SetDeviceValuators (ClientPtr client, DeviceIntPtr dev, int *valuators,
int first_valuator, int num_valuators)
{
LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
if (local->set_device_valuators)
return (*local->set_device_valuators)(local, valuators, first_valuator,
num_valuators);
return BadMatch;
}
/***********************************************************************
*
* Caller: ProcXChangeDeviceControl
*
* Change the specified device controls on an extension input device.
*
***********************************************************************
*/
int
ChangeDeviceControl (ClientPtr client, DeviceIntPtr dev, xDeviceCtl *control)
{
LocalDevicePtr local = (LocalDevicePtr)dev->public.devicePrivate;
if (!local->control_proc) {
switch (control->control) {
case DEVICE_CORE:
return BadMatch;
case DEVICE_RESOLUTION:
case DEVICE_ABS_CALIB:
case DEVICE_ABS_AREA:
case DEVICE_ENABLE:
return Success;
default:
return BadMatch;
}
}
else {
return (*local->control_proc)(local, control);
}
}
void
AddOtherInputDevices(void)
{
}
/**
* Create a new input device, activate and enable it.
*
* Possible return codes:
* BadName .. a bad driver name was supplied.
* BadImplementation ... The driver does not have a PreInit function. This
* is a driver bug.
* BadMatch .. device initialization failed.
* BadAlloc .. too many input devices
*
* @param idev The device, already set up with identifier, driver, and the
* options.
* @param pdev Pointer to the new device, if Success was reported.
* @param enable Enable the device after activating it.
*
* @return Success or an error code
*/
_X_INTERNAL int
xf86NewInputDevice(IDevPtr idev, DeviceIntPtr *pdev, BOOL enable)
{
InputDriverPtr drv = NULL;
InputInfoPtr pInfo = NULL;
DeviceIntPtr dev = NULL;
int rval;
/* Memory leak for every attached device if we don't
* test if the module is already loaded first */
drv = xf86LookupInputDriver(idev->driver);
if (!drv)
if (xf86LoadOneModule(idev->driver, NULL))
drv = xf86LookupInputDriver(idev->driver);
if (!drv) {
xf86Msg(X_ERROR, "No input driver matching `%s'\n", idev->driver);
rval = BadName;
goto unwind;
}
if (!drv->PreInit) {
xf86Msg(X_ERROR,
"Input driver `%s' has no PreInit function (ignoring)\n",
drv->driverName);
rval = BadImplementation;
goto unwind;
}
pInfo = drv->PreInit(drv, idev, 0);
if (!pInfo) {
xf86Msg(X_ERROR, "PreInit returned NULL for \"%s\"\n", idev->identifier);
rval = BadMatch;
goto unwind;
}
else if (!(pInfo->flags & XI86_CONFIGURED)) {
xf86Msg(X_ERROR, "PreInit failed for input device \"%s\"\n",
idev->identifier);
rval = BadMatch;
goto unwind;
}
if (!xf86ActivateDevice(pInfo))
{
rval = BadAlloc;
goto unwind;
}
dev = pInfo->dev;
rval = ActivateDevice(dev, TRUE);
if (rval != Success)
{
xf86Msg(X_ERROR, "Couldn't init device \"%s\"\n", idev->identifier);
RemoveDevice(dev, TRUE);
goto unwind;
}
/* Enable it if it's properly initialised and we're currently in the VT */
if (enable && dev->inited && dev->startup && xf86Screens[0]->vtSema)
{
EnableDevice(dev, TRUE);
if (!dev->enabled)
{
xf86Msg(X_ERROR, "Couldn't init device \"%s\"\n", idev->identifier);
rval = BadMatch;
goto unwind;
}
/* send enter/leave event, update sprite window */
CheckMotion(NULL, dev);
}
*pdev = dev;
return Success;
unwind:
if(pInfo) {
if(drv->UnInit)
drv->UnInit(drv, pInfo, 0);
else
xf86DeleteInput(pInfo, 0);
}
return rval;
}
int
NewInputDeviceRequest (InputOption *options, DeviceIntPtr *pdev)
{
IDevRec *idev = NULL;
InputOption *option = NULL;
int rval = Success;
int is_auto = 0;
idev = xcalloc(sizeof(*idev), 1);
if (!idev)
return BadAlloc;
for (option = options; option; option = option->next) {
if (strcasecmp(option->key, "driver") == 0) {
if (idev->driver) {
rval = BadRequest;
goto unwind;
}
idev->driver = xstrdup(option->value);
if (!idev->driver) {
rval = BadAlloc;
goto unwind;
}
}
if (strcasecmp(option->key, "name") == 0 ||
strcasecmp(option->key, "identifier") == 0) {
if (idev->identifier) {
rval = BadRequest;
goto unwind;
}
idev->identifier = xstrdup(option->value);
if (!idev->identifier) {
rval = BadAlloc;
goto unwind;
}
}
/* Right now, the only automatic config we know of is HAL. */
if (strcmp(option->key, "_source") == 0 &&
strcmp(option->value, "server/hal") == 0) {
is_auto = 1;
if (!xf86Info.autoAddDevices) {
rval = BadMatch;
goto unwind;
}
}
}
if (!idev->driver || !idev->identifier) {
xf86Msg(X_ERROR, "No input driver/identifier specified (ignoring)\n");
rval = BadRequest;
goto unwind;
}
if (!idev->identifier) {
xf86Msg(X_ERROR, "No device identifier specified (ignoring)\n");
return BadMatch;
}
for (option = options; option; option = option->next) {
/* Steal option key/value strings from the provided list.
* We need those strings, the InputOption list doesn't. */
idev->commonOptions = xf86addNewOption(idev->commonOptions,
option->key, option->value);
option->key = NULL;
option->value = NULL;
}
rval = xf86NewInputDevice(idev, pdev,
(!is_auto || (is_auto && xf86Info.autoEnableDevices)));
if (rval == Success)
return Success;
unwind:
if (is_auto && !xf86Info.autoAddDevices)
xf86Msg(X_INFO, "AutoAddDevices is off - not adding device.\n");
if(idev->driver)
xfree(idev->driver);
if(idev->identifier)
xfree(idev->identifier);
xf86optionListFree(idev->commonOptions);
xfree(idev);
return rval;
}
void
DeleteInputDeviceRequest(DeviceIntPtr pDev)
{
LocalDevicePtr pInfo = (LocalDevicePtr) pDev->public.devicePrivate;
InputDriverPtr drv = NULL;
IDevRec *idev = NULL;
IDevPtr *it;
Bool isMaster = IsMaster(pDev);
if (pInfo) /* need to get these before RemoveDevice */
{
drv = pInfo->drv;
idev = pInfo->conf_idev;
}
OsBlockSignals();
RemoveDevice(pDev, TRUE);
if (!isMaster && pInfo != NULL)
{
if(drv->UnInit)
drv->UnInit(drv, pInfo, 0);
else
xf86DeleteInput(pInfo, 0);
/* devices added through HAL aren't in the config layout */
it = xf86ConfigLayout.inputs;
while(*it && *it != idev)
it++;
if (!(*it)) /* end of list, not in the layout */
{
xfree(idev->driver);
xfree(idev->identifier);
xf86optionListFree(idev->commonOptions);
xfree(idev);
}
}
OsReleaseSignals();
}
/*
* convenient functions to post events
*/
void
xf86PostMotionEvent(DeviceIntPtr device,
int is_absolute,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int i = 0;
static int valuators[MAX_VALUATORS];
XI_VERIFY_VALUATORS(num_valuators);
va_start(var, num_valuators);
for (i = 0; i < num_valuators; i++)
valuators[i] = va_arg(var, int);
va_end(var);
xf86PostMotionEventP(device, is_absolute, first_valuator, num_valuators, valuators);
}
void
xf86PostMotionEventP(DeviceIntPtr device,
int is_absolute,
int first_valuator,
int num_valuators,
int *valuators)
{
int i = 0, nevents = 0;
Bool drag = xf86SendDragEvents(device);
DeviceEvent *event;
int flags = 0;
#if XFreeXDGA
int index;
int dx = 0, dy = 0;
#endif
XI_VERIFY_VALUATORS(num_valuators);
if (is_absolute)
flags = POINTER_ABSOLUTE;
else
flags = POINTER_RELATIVE | POINTER_ACCELERATE;
#if XFreeXDGA
/* The evdev driver may not always send all axes across. */
if (num_valuators >= 1 && first_valuator <= 1) {
if (miPointerGetScreen(device)) {
index = miPointerGetScreen(device)->myNum;
if (first_valuator == 0)
{
dx = valuators[0];
if (is_absolute)
dx -= device->last.valuators[0];
}
if (first_valuator == 1 || num_valuators >= 2)
{
dy = valuators[1 - first_valuator];
if (is_absolute)
dy -= device->last.valuators[1];
}
if (DGAStealMotionEvent(device, index, dx, dy))
return;
}
}
#endif
nevents = GetPointerEvents(xf86Events, device, MotionNotify, 0,
flags, first_valuator, num_valuators,
valuators);
for (i = 0; i < nevents; i++) {
event = (DeviceEvent*)((xf86Events + i)->event);
/* Don't post core motion events for devices not registered to send
* drag events. */
if (event->header == ET_Internal &&
(event->type != ET_Motion || drag)) {
mieqEnqueue(device, (InternalEvent*)((xf86Events + i)->event));
}
}
}
void
xf86PostProximityEvent(DeviceIntPtr device,
int is_in,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int i;
int valuators[MAX_VALUATORS];
XI_VERIFY_VALUATORS(num_valuators);
va_start(var, num_valuators);
for (i = 0; i < num_valuators; i++)
valuators[i] = va_arg(var, int);
va_end(var);
xf86PostProximityEventP(device, is_in, first_valuator, num_valuators,
valuators);
}
void
xf86PostProximityEventP(DeviceIntPtr device,
int is_in,
int first_valuator,
int num_valuators,
int *valuators)
{
int i, nevents;
XI_VERIFY_VALUATORS(num_valuators);
nevents = GetProximityEvents(xf86Events, device,
is_in ? ProximityIn : ProximityOut,
first_valuator, num_valuators, valuators);
for (i = 0; i < nevents; i++)
mieqEnqueue(device, (InternalEvent*)((xf86Events + i)->event));
}
void
xf86PostButtonEvent(DeviceIntPtr device,
int is_absolute,
int button,
int is_down,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int valuators[MAX_VALUATORS];
int i = 0;
XI_VERIFY_VALUATORS(num_valuators);
va_start(var, num_valuators);
for (i = 0; i < num_valuators; i++)
valuators[i] = va_arg(var, int);
va_end(var);
xf86PostButtonEventP(device, is_absolute, button, is_down, first_valuator,
num_valuators, valuators);
}
void
xf86PostButtonEventP(DeviceIntPtr device,
int is_absolute,
int button,
int is_down,
int first_valuator,
int num_valuators,
int *valuators)
{
int i = 0, nevents = 0;
int flags = 0;
#if XFreeXDGA
int index;
#endif
XI_VERIFY_VALUATORS(num_valuators);
if (is_absolute)
flags = POINTER_ABSOLUTE;
else
flags = POINTER_RELATIVE | POINTER_ACCELERATE;
#if XFreeXDGA
if (miPointerGetScreen(device)) {
index = miPointerGetScreen(device)->myNum;
if (DGAStealButtonEvent(device, index, button, is_down))
return;
}
#endif
nevents = GetPointerEvents(xf86Events, device,
is_down ? ButtonPress : ButtonRelease, button,
flags, first_valuator, num_valuators, valuators);
for (i = 0; i < nevents; i++)
mieqEnqueue(device, (InternalEvent*)((xf86Events + i)->event));
}
void
xf86PostKeyEvent(DeviceIntPtr device,
unsigned int key_code,
int is_down,
int is_absolute,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int i = 0;
static int valuators[MAX_VALUATORS];
XI_VERIFY_VALUATORS(num_valuators);
va_start(var, num_valuators);
for (i = 0; i < num_valuators; i++)
valuators[i] = va_arg(var, int);
va_end(var);
xf86PostKeyEventP(device, key_code, is_down, is_absolute, first_valuator,
num_valuators, valuators);
}
void
xf86PostKeyEventP(DeviceIntPtr device,
unsigned int key_code,
int is_down,
int is_absolute,
int first_valuator,
int num_valuators,
int *valuators)
{
int i = 0, nevents = 0;
XI_VERIFY_VALUATORS(num_valuators);
if (is_absolute) {
nevents = GetKeyboardValuatorEvents(xf86Events, device,
is_down ? KeyPress : KeyRelease,
key_code, first_valuator,
num_valuators, valuators);
}
else {
nevents = GetKeyboardEvents(xf86Events, device,
is_down ? KeyPress : KeyRelease,
key_code);
}
for (i = 0; i < nevents; i++)
mieqEnqueue(device, (InternalEvent*)((xf86Events + i)->event));
}
void
xf86PostKeyboardEvent(DeviceIntPtr device,
unsigned int key_code,
int is_down)
{
xf86PostKeyEventP(device, key_code, is_down, 0, 0, 0, NULL);
}
LocalDevicePtr
xf86FirstLocalDevice(void)
{
return xf86InputDevs;
}
/*
* Cx - raw data from touch screen
* Sxhigh - scaled highest dimension
* (remember, this is of rows - 1 because of 0 origin)
* Sxlow - scaled lowest dimension
* Rxhigh - highest raw value from touch screen calibration
* Rxlow - lowest raw value from touch screen calibration
*
* This function is the same for X or Y coordinates.
* You may have to reverse the high and low values to compensate for
* different orgins on the touch screen vs X.
*/
int
xf86ScaleAxis(int Cx,
int Sxhigh,
int Sxlow,
int Rxhigh,
int Rxlow )
{
int X;
int dSx = Sxhigh - Sxlow;
int dRx = Rxhigh - Rxlow;
dSx = Sxhigh - Sxlow;
if (dRx) {
X = ((dSx * (Cx - Rxlow)) / dRx) + Sxlow;
}
else {
X = 0;
ErrorF ("Divide by Zero in xf86ScaleAxis");
}
if (X > Sxhigh)
X = Sxhigh;
if (X < Sxlow)
X = Sxlow;
return (X);
}
/*
* This function checks the given screen against the current screen and
* makes changes if appropriate. It should be called from an XInput driver's
* ReadInput function before any events are posted, if the device is screen
* specific like a touch screen.
*/
void
xf86XInputSetScreen(LocalDevicePtr local,
int screen_number,
int x,
int y)
{
if (miPointerGetScreen(local->dev) !=
screenInfo.screens[screen_number]) {
miPointerSetScreen(local->dev, screen_number, x, y);
}
}
void
xf86InitValuatorAxisStruct(DeviceIntPtr dev, int axnum, Atom label, int minval, int maxval,
int resolution, int min_res, int max_res)
{
if (!dev || !dev->valuator)
return;
InitValuatorAxisStruct(dev, axnum, label, minval, maxval, resolution, min_res,
max_res);
}
/*
* Set the valuator values to be in synch with dix/event.c
* DefineInitialRootWindow().
*/
void
xf86InitValuatorDefaults(DeviceIntPtr dev, int axnum)
{
if (axnum == 0) {
dev->valuator->axisVal[0] = screenInfo.screens[0]->width / 2;
dev->last.valuators[0] = dev->valuator->axisVal[0];
}
else if (axnum == 1) {
dev->valuator->axisVal[1] = screenInfo.screens[0]->height / 2;
dev->last.valuators[1] = dev->valuator->axisVal[1];
}
if(axnum == 0) /* to prevent double invocation */
ApplyAccelerationSettings(dev);
}
/**
* Deactivate a device. Call this function from the driver if you receive a
* read error or something else that spoils your day.
* Device will be moved to the off_devices list, but it will still be there
* until you really clean up after it.
* Notifies the client about an inactive device.
*
* @param panic True if device is unrecoverable and needs to be removed.
*/
void
xf86DisableDevice(DeviceIntPtr dev, Bool panic)
{
if(!panic)
{
DisableDevice(dev, TRUE);
} else
{
SendDevicePresenceEvent(dev->id, DeviceUnrecoverable);
DeleteInputDeviceRequest(dev);
}
}
/**
* Reactivate a device. Call this function from the driver if you just found
* out that the read error wasn't quite that bad after all.
* Device will be re-activated, and an event sent to the client.
*/
void
xf86EnableDevice(DeviceIntPtr dev)
{
EnableDevice(dev, TRUE);
}
/* end of xf86Xinput.c */
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