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xserver-multidpi/hw/xfree86/common/xf86Xinput.c

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/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86Xinput.c,v 3.70 2003/11/03 05:11:02 tsi Exp $ */
/*
* 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,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* 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).
*/
/* $XConsortium: xf86Xinput.c /main/14 1996/10/27 11:05:25 kaleb $ */
/* $XdotOrg: $ */
#include "Xfuncproto.h"
#include "Xmd.h"
#ifdef XINPUT
#include "XI.h"
#include "XIproto.h"
#endif
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86Xinput.h"
#ifdef XINPUT
#include "XIstubs.h"
#endif
#include "mipointer.h"
#include "xf86InPriv.h"
#ifdef DPMSExtension
#define DPMS_SERVER
#include "extensions/dpms.h"
#include "dpmsproc.h"
#endif
#ifdef XFreeXDGA
#include "dgaproc.h"
#endif
#include "exevents.h" /* AddInputDevice */
#include "exglobals.h"
#define EXTENSION_PROC_ARGS void *
#include "extnsionst.h"
#include "extinit.h" /* LookupDeviceIntRec */
#include "windowstr.h" /* screenIsSaved */
#include <stdarg.h>
#include "osdep.h" /* EnabledDevices */
#include "Xpoll.h"
#include "xf86_OSproc.h" /* sigio stuff */
/******************************************************************************
* debugging macro
*****************************************************************************/
#ifdef DBG
#undef DBG
#endif
#ifdef DEBUG
#undef DEBUG
#endif
#define DEBUG 0
#if DEBUG
static int debug_level = 0;
#define DBG(lvl, f) {if ((lvl) <= debug_level) f;}
#else
#define DBG(lvl, f)
#endif
/******************************************************************************
* macros
*****************************************************************************/
#define ENQUEUE(e) xf86eqEnqueue((e))
/***********************************************************************
*
* xf86AlwaysCoreControl --
*
* Control proc for the integer feedback that controls the always
* core feature.
*
***********************************************************************
*/
static void
xf86AlwaysCoreControl(DeviceIntPtr device,
IntegerCtrl *control)
{
}
/***********************************************************************
*
* Core devices functions --
*
* Test if device is the core device by checking the
* value of always core feedback and the inputInfo struct.
*
***********************************************************************
*/
int
xf86IsCorePointer(DeviceIntPtr device)
{
return(device == inputInfo.pointer);
}
static int
xf86ShareCorePointer(DeviceIntPtr device)
{
LocalDevicePtr local = (LocalDevicePtr) device->public.devicePrivate;
return((local->always_core_feedback &&
local->always_core_feedback->ctrl.integer_displayed));
}
static Bool
xf86SendDragEvents(DeviceIntPtr device)
{
LocalDevicePtr local = (LocalDevicePtr) device->public.devicePrivate;
if (inputInfo.pointer->button->buttonsDown > 0)
return (local->flags & XI86_SEND_DRAG_EVENTS);
else
return (TRUE);
}
int
xf86IsCoreKeyboard(DeviceIntPtr device)
{
LocalDevicePtr local = (LocalDevicePtr) device->public.devicePrivate;
return((local->flags & XI86_ALWAYS_CORE) ||
(device == inputInfo.keyboard));
}
void
xf86XInputSetSendCoreEvents(LocalDevicePtr local, Bool always)
{
if (always) {
local->flags |= XI86_ALWAYS_CORE;
} else {
local->flags &= ~XI86_ALWAYS_CORE;
}
}
static int xf86CoreButtonState;
/***********************************************************************
*
* xf86CheckButton --
*
* Test if the core pointer button state is coherent with
* the button event to send.
*
***********************************************************************
*/
Bool
xf86CheckButton(int button,
int down)
{
int check;
int bit = (1 << (button - 1));
check = xf86CoreButtonState & bit;
DBG(5, ErrorF("xf86CheckButton "
"button=%d down=%d state=%d check=%d returns ",
button, down, xf86CoreButtonState, check));
if ((check && down) || (!check && !down)) {
DBG(5, ErrorF("FALSE\n"));
return FALSE;
}
xf86CoreButtonState ^= bit;
DBG(5, ErrorF("TRUE\n"));
return TRUE;
}
/***********************************************************************
*
* xf86ProcessCommonOptions --
*
* Process global options.
*
***********************************************************************
*/
void
xf86ProcessCommonOptions(LocalDevicePtr local,
pointer list)
{
if (xf86SetBoolOption(list, "AlwaysCore", 0) ||
xf86SetBoolOption(list, "SendCoreEvents", 0)) {
local->flags |= XI86_ALWAYS_CORE;
xf86Msg(X_CONFIG, "%s: always reports core events\n", local->name);
}
if (xf86SetBoolOption(list, "CorePointer", 0)) {
local->flags |= XI86_CORE_POINTER;
xf86Msg(X_CONFIG, "%s: Core Pointer\n", local->name);
}
if (xf86SetBoolOption(list, "CoreKeyboard", 0)) {
local->flags |= XI86_CORE_KEYBOARD;
xf86Msg(X_CONFIG, "%s: Core Keyboard\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);
}
local->history_size = xf86SetIntOption(list, "HistorySize", 0);
if (local->history_size > 0) {
xf86Msg(X_CONFIG, "%s: has a history of %d motions\n", local->name,
local->history_size);
}
}
/***********************************************************************
*
* xf86XinputFinalizeInit --
*
* Create and initialize an integer feedback to control the always
* core feature.
*
***********************************************************************
*/
void
xf86XinputFinalizeInit(DeviceIntPtr dev)
{
LocalDevicePtr local = (LocalDevicePtr)dev->public.devicePrivate;
local->dxremaind = 0.0;
local->dyremaind = 0.0;
if (InitIntegerFeedbackClassDeviceStruct(dev, xf86AlwaysCoreControl) == FALSE) {
ErrorF("Unable to init integer feedback for always core feature\n");
} else {
local->always_core_feedback = dev->intfeed;
dev->intfeed->ctrl.integer_displayed = (local->flags & XI86_ALWAYS_CORE) ? 1 : 0;
}
}
/***********************************************************************
*
* xf86ActivateDevice --
*
* Initialize an input device.
*
***********************************************************************
*/
void
xf86ActivateDevice(LocalDevicePtr local)
{
DeviceIntPtr dev;
if (local->flags & XI86_CONFIGURED) {
int open_on_init;
open_on_init = local->flags &
(XI86_OPEN_ON_INIT |
XI86_ALWAYS_CORE | XI86_CORE_POINTER | XI86_CORE_KEYBOARD);
dev = AddInputDevice(local->device_control,
open_on_init);
if (dev == NULL)
FatalError("Too many input devices");
local->atom = MakeAtom(local->name,
strlen(local->name),
TRUE);
AssignTypeAndName (dev, local->atom, local->name);
dev->public.devicePrivate = (pointer) local;
local->dev = dev;
xf86XinputFinalizeInit(dev);
/*
* XXX Can a single device instance be both core keyboard and
* core pointer? If so, this should be changed.
*/
if (local->flags & XI86_CORE_POINTER)
RegisterPointerDevice(dev);
else if (local->flags & XI86_CORE_KEYBOARD)
RegisterKeyboardDevice(dev);
#ifdef XINPUT
else
RegisterOtherDevice(dev);
#endif
if (serverGeneration == 1)
xf86Msg(X_INFO, "XINPUT: Adding extended input device \"%s\" (type: %s)\n",
local->name, local->type_name);
}
}
#ifdef XINPUT
/***********************************************************************
*
* 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) {
*status = BadDevice;
} else {
if (!dev->public.on) {
if (!EnableDevice(dev)) {
*status = BadDevice;
} else {
/* to prevent ProcXOpenDevice to call EnableDevice again */
dev->startup = FALSE;
}
}
}
}
/***********************************************************************
*
* Caller: ProcXChangeKeyboardDevice
*
* This procedure does the implementation-dependent portion of the work
* needed to change the keyboard device.
*
* The X keyboard device has a FocusRec. If the device that has been
* made into the new X keyboard did not have a FocusRec,
* ProcXChangeKeyboardDevice will allocate one for it.
*
* If you do not want clients to be able to focus the old X keyboard
* device, call DeleteFocusClassDeviceStruct to free the FocusRec.
*
* If you support input devices with keys that you do not want to be
* used as the X keyboard, you need to check for them here and return
* a BadDevice error.
*
* The default implementation is to do nothing (assume you do want
* clients to be able to focus the old X keyboard). The commented-out
* sample code shows what you might do if you don't want the default.
*
***********************************************************************
*/
int
ChangeKeyboardDevice (DeviceIntPtr old_dev, DeviceIntPtr new_dev)
{
/**********************************************************************
* DeleteFocusClassDeviceStruct(old_dev); * defined in xchgptr.c *
**********************************************************************/
return !Success;
}
/***********************************************************************
*
* Caller: ProcXChangePointerDevice
*
* This procedure does the implementation-dependent portion of the work
* needed to change the pointer device.
*
* The X pointer device does not have a FocusRec. If the device that
* has been made into the new X pointer had a FocusRec,
* ProcXChangePointerDevice will free it.
*
* If you want clients to be able to focus the old pointer device that
* has now become accessible through the input extension, you need to
* add a FocusRec to it here.
*
* The XChangePointerDevice protocol request also allows the client
* to choose which axes of the new pointer device are used to move
* the X cursor in the X- and Y- directions. If the axes are different
* than the default ones, you need to keep track of that here.
*
* If you support input devices with valuators that you do not want to be
* used as the X pointer, you need to check for them here and return a
* BadDevice error.
*
* The default implementation is to do nothing (assume you don't want
* clients to be able to focus the old X pointer). The commented-out
* sample code shows what you might do if you don't want the default.
*
***********************************************************************
*/
int
ChangePointerDevice (
DeviceIntPtr old_dev,
DeviceIntPtr new_dev,
unsigned char x,
unsigned char y)
{
/************************************************************************
InitFocusClassDeviceStruct(old_dev); * allow focusing old ptr*
x_axis = x; * keep track of new x-axis*
y_axis = y; * keep track of new y-axis*
if (x_axis != 0 || y_axis != 1)
axes_changed = TRUE; * remember axes have changed*
else
axes_changed = FALSE;
*************************************************************************/
/*
* We don't allow axis swap or other exotic features.
*/
if (x == 0 && y == 1) {
LocalDevicePtr old_local = (LocalDevicePtr)old_dev->public.devicePrivate;
LocalDevicePtr new_local = (LocalDevicePtr)new_dev->public.devicePrivate;
InitFocusClassDeviceStruct(old_dev);
/* Restore Extended motion history information */
old_dev->valuator->GetMotionProc = old_local->motion_history_proc;
old_dev->valuator->numMotionEvents = old_local->history_size;
/* Save Extended motion history information */
new_local->motion_history_proc = new_dev->valuator->GetMotionProc;
new_local->history_size = new_dev->valuator->numMotionEvents;
/* Set Core motion history information */
new_dev->valuator->GetMotionProc = miPointerGetMotionEvents;
new_dev->valuator->numMotionEvents = miPointerGetMotionBufferSize();
return Success;
}
else
return !Success;
}
/***********************************************************************
*
* Caller: ProcXCloseDevice
*
* Take care of implementation-dependent details of closing a device.
* Some implementations may actually close the device, others may just
* remove this clients interest in that device.
*
* The default implementation is to do nothing (assume all input devices
* are initialized during X server initialization and kept open).
*
***********************************************************************
*/
void
CloseInputDevice (DeviceIntPtr d, ClientPtr client)
{
ErrorF("ProcXCloseDevice to close or not ?\n");
}
/***********************************************************************
*
* Caller: ProcXListInputDevices
*
* This is the implementation-dependent routine to initialize an input
* device to the point that information about it can be listed.
* 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. If some other process has the device open, the
* server may not be able to get information about the device to list it.
*
* This procedure should be used by implementations that do not initialize
* all input devices at server startup. It should do device-dependent
* initialization for any devices not previously initialized, and call
* AddInputDevice for each of those devices so that a DeviceIntRec will be
* created for them.
*
* The default implementation is to do nothing (assume all input devices
* are initialized during X server initialization and kept open).
* The commented-out sample code shows what you might do if you don't want
* the default.
*
***********************************************************************
*/
void
AddOtherInputDevices ()
{
}
/****************************************************************************
*
* 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)
{
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) {
return (BadMatch);
}
else {
return (*local->control_proc)(local, control);
}
}
#endif
/*
* adapted from mieq.c to support extended events
*
*/
#define QUEUE_SIZE 256
typedef struct _Event {
xEvent event;
#ifdef XINPUT
deviceValuator val;
#endif
ScreenPtr pScreen;
} EventRec, *EventPtr;
typedef struct _EventQueue {
HWEventQueueType head, tail;
CARD32 lastEventTime; /* to avoid time running backwards */
Bool lastMotion;
EventRec events[QUEUE_SIZE]; /* static allocation for signals */
DevicePtr pKbd, pPtr; /* device pointer, to get funcs */
ScreenPtr pEnqueueScreen; /* screen events are being delivered to */
ScreenPtr pDequeueScreen; /* screen events are being dispatched to */
} EventQueueRec, *EventQueuePtr;
static EventQueueRec xf86EventQueue;
Bool
xf86eqInit (DevicePtr pKbd, DevicePtr pPtr)
{
xf86EventQueue.head = xf86EventQueue.tail = 0;
xf86EventQueue.lastEventTime = GetTimeInMillis ();
xf86EventQueue.pKbd = pKbd;
xf86EventQueue.pPtr = pPtr;
xf86EventQueue.lastMotion = FALSE;
xf86EventQueue.pEnqueueScreen = screenInfo.screens[0];
xf86EventQueue.pDequeueScreen = xf86EventQueue.pEnqueueScreen;
SetInputCheck (&xf86EventQueue.head, &xf86EventQueue.tail);
return TRUE;
}
/*
* Must be reentrant with ProcessInputEvents. Assumption: xf86eqEnqueue
* will never be interrupted. If this is called from both signal
* handlers and regular code, make sure the signal is suspended when
* called from regular code.
*/
void
xf86eqEnqueue (xEvent *e)
{
int oldtail, newtail;
Bool isMotion;
#ifdef XINPUT
int count;
xf86AssertBlockedSIGIO ("xf86eqEnqueue");
switch (e->u.u.type) {
case KeyPress:
case KeyRelease:
#ifdef XFreeXDGA
/* we do this here, because nobody seems to be calling
xf86PostKeyEvent(). We can't steal MotionNotify events here
because the motion-relative information has been lost already. */
if(DGAStealKeyEvent(xf86EventQueue.pEnqueueScreen->myNum, e))
return;
#endif
/* fall through */
case ButtonPress:
case ButtonRelease:
case MotionNotify:
count = 1;
break;
default:
#ifdef XFreeXDGA
if (DGAIsDgaEvent (e))
{
count = 1;
break;
}
#endif
if (!((deviceKeyButtonPointer *) e)->deviceid & MORE_EVENTS) {
count = 1;
}
else {
count = 2;
}
break;
}
#endif
oldtail = xf86EventQueue.tail;
isMotion = e->u.u.type == MotionNotify;
if (isMotion && xf86EventQueue.lastMotion && oldtail != xf86EventQueue.head) {
if (oldtail == 0)
oldtail = QUEUE_SIZE;
oldtail = oldtail - 1;
}
else {
newtail = oldtail + 1;
if (newtail == QUEUE_SIZE)
newtail = 0;
/* Toss events which come in late */
if (newtail == xf86EventQueue.head)
return;
xf86EventQueue.tail = newtail;
}
xf86EventQueue.lastMotion = isMotion;
xf86EventQueue.events[oldtail].event = *e;
#ifdef XINPUT
if (count == 2) {
xf86EventQueue.events[oldtail].val = *((deviceValuator *) (((deviceKeyButtonPointer *) e)+1));
}
#endif
/*
* Make sure that event times don't go backwards - this
* is "unnecessary", but very useful
*/
if (e->u.keyButtonPointer.time < xf86EventQueue.lastEventTime &&
xf86EventQueue.lastEventTime - e->u.keyButtonPointer.time < 10000) {
xf86EventQueue.events[oldtail].event.u.keyButtonPointer.time =
xf86EventQueue.lastEventTime;
}
xf86EventQueue.events[oldtail].pScreen = xf86EventQueue.pEnqueueScreen;
}
/*
* Call this from ProcessInputEvents()
*/
void
xf86eqProcessInputEvents ()
{
EventRec *e;
int x, y;
struct {
xEvent event;
#ifdef XINPUT
deviceValuator val;
#endif
} xe;
#ifdef XINPUT
DeviceIntPtr dev;
int id, count;
deviceKeyButtonPointer *dev_xe;
#endif
while (xf86EventQueue.head != xf86EventQueue.tail) {
if (screenIsSaved == SCREEN_SAVER_ON)
SaveScreens (SCREEN_SAVER_OFF, ScreenSaverReset);
#ifdef DPMSExtension
if (DPMSPowerLevel != DPMSModeOn)
DPMSSet(DPMSModeOn);
#endif
e = &xf86EventQueue.events[xf86EventQueue.head];
/*
* Assumption - screen switching can only occur on motion events
*/
if (e->pScreen != xf86EventQueue.pDequeueScreen) {
xf86EventQueue.pDequeueScreen = e->pScreen;
x = e->event.u.keyButtonPointer.rootX;
y = e->event.u.keyButtonPointer.rootY;
if (xf86EventQueue.head == QUEUE_SIZE - 1)
xf86EventQueue.head = 0;
else
++xf86EventQueue.head;
NewCurrentScreen (xf86EventQueue.pDequeueScreen, x, y);
}
else {
xe.event = e->event;
xe.val = e->val;
if (xf86EventQueue.head == QUEUE_SIZE - 1)
xf86EventQueue.head = 0;
else
++xf86EventQueue.head;
switch (xe.event.u.u.type) {
case KeyPress:
case KeyRelease:
(*xf86EventQueue.pKbd->processInputProc)
(&xe.event, (DeviceIntPtr)xf86EventQueue.pKbd, 1);
break;
#ifdef XINPUT
case ButtonPress:
case ButtonRelease:
case MotionNotify:
(*(inputInfo.pointer->public.processInputProc))
(&xe.event, (DeviceIntPtr)inputInfo.pointer, 1);
break;
default:
#ifdef XFreeXDGA
if (DGADeliverEvent (xf86EventQueue.pDequeueScreen, &xe.event))
break;
#endif
dev_xe = (deviceKeyButtonPointer *) &xe.event;
id = dev_xe->deviceid & DEVICE_BITS;
if (!(dev_xe->deviceid & MORE_EVENTS)) {
count = 1;
}
else {
count = 2;
}
dev = LookupDeviceIntRec(id);
if (dev == NULL) {
ErrorF("LookupDeviceIntRec id=0x%x not found\n", id);
/* FatalError("xf86eqProcessInputEvents : device not found.\n");
*/
break;
}
if (!dev->public.processInputProc) {
FatalError("xf86eqProcessInputEvents : device has no input proc.\n");
break;
}
(*dev->public.processInputProc)(&xe.event, dev, count);
#else
default:
(*xf86EventQueue.pPtr->processInputProc)
(&xe.event, (DeviceIntPtr)xf86EventQueue.pPtr, 1);
#endif
break;
}
}
}
}
void
xf86eqSwitchScreen(ScreenPtr pScreen,
Bool fromDIX)
{
xf86EventQueue.pEnqueueScreen = pScreen;
if (fromDIX)
xf86EventQueue.pDequeueScreen = pScreen;
}
/*
* convenient functions to post events
*/
void
xf86PostMotionEvent(DeviceIntPtr device,
int is_absolute,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int loop;
xEvent xE[2];
deviceKeyButtonPointer *xev = (deviceKeyButtonPointer*) xE;
deviceValuator *xv = (deviceValuator*) xev+1;
LocalDevicePtr local = (LocalDevicePtr) device->public.devicePrivate;
char *buff = 0;
Time current;
Bool is_core = xf86IsCorePointer(device);
Bool is_shared = xf86ShareCorePointer(device);
Bool drag = xf86SendDragEvents(device);
ValuatorClassPtr val = device->valuator;
int valuator[6];
int oldaxis[6];
int *axisvals;
int dx = 0, dy = 0;
float mult;
int x, y;
int loop_start;
int i;
int num;
DBG(5, ErrorF("xf86PostMotionEvent BEGIN 0x%x(%s) is_core=%s is_shared=%s is_absolute=%s\n",
device, device->name,
is_core ? "True" : "False",
is_shared ? "True" : "False",
is_absolute ? "True" : "False"));
xf86Info.lastEventTime = xev->time = current = GetTimeInMillis();
if (!is_core) {
if (HAS_MOTION_HISTORY(local)) {
buff = ((char *)local->motion_history +
(sizeof(INT32) * local->dev->valuator->numAxes + sizeof(Time)) * local->last);
}
}
if (num_valuators && (!val || (first_valuator + num_valuators > val->numAxes))) {
ErrorF("Bad valuators reported for device \"%s\"\n", device->name);
return;
}
axisvals = val->axisVal;
va_start(var, num_valuators);
loop_start = first_valuator;
for(loop=0; loop<num_valuators; loop++) {
valuator[loop%6] = va_arg(var,int);
if (loop % 6 == 5 || loop == num_valuators - 1) {
num = loop % 6 + 1;
/*
* Adjust first two relative valuators
*/
if (!is_absolute && num_valuators >= 2 && loop_start == 0) {
dx = valuator[0];
dy = valuator[1];
/*
* Accelerate
*/
if (device->ptrfeed && device->ptrfeed->ctrl.num) {
/* modeled from xf86Events.c */
if (device->ptrfeed->ctrl.threshold) {
if ((abs(dx) + abs(dy)) >= device->ptrfeed->ctrl.threshold) {
local->dxremaind = ((float)dx * (float)(device->ptrfeed->ctrl.num)) /
(float)(device->ptrfeed->ctrl.den) + local->dxremaind;
valuator[0] = (int)local->dxremaind;
local->dxremaind = local->dxremaind - (float)valuator[0];
local->dyremaind = ((float)dy * (float)(device->ptrfeed->ctrl.num)) /
(float)(device->ptrfeed->ctrl.den) + local->dyremaind;
valuator[1] = (int)local->dyremaind;
local->dyremaind = local->dyremaind - (float)valuator[1];
}
}
else if (dx || dy) {
mult = pow((float)(dx*dx+dy*dy),
((float)(device->ptrfeed->ctrl.num) /
(float)(device->ptrfeed->ctrl.den) - 1.0) /
2.0) / 2.0;
if (dx) {
local->dxremaind = mult * (float)dx + local->dxremaind;
valuator[0] = (int)local->dxremaind;
local->dxremaind = local->dxremaind - (float)valuator[0];
}
if (dy) {
local->dyremaind = mult * (float)dy + local->dyremaind;
valuator[1] = (int)local->dyremaind;
local->dyremaind = local->dyremaind - (float)valuator[1];
}
}
DBG(6, ErrorF("xf86PostMotionEvent acceleration v0=%d v1=%d\n",
valuator[0], valuator[1]));
}
/*
* Map current position back to device space in case
* the cursor was warped
*/
if (is_core || is_shared)
{
miPointerPosition (&x, &y);
if (local->reverse_conversion_proc)
(*local->reverse_conversion_proc)(local, x, y, axisvals);
else
{
axisvals[0] = x;
axisvals[1] = y;
}
}
}
/*
* Update axes
*/
for (i = 0; i < num; i++)
{
oldaxis[i] = axisvals[loop_start + i];
if (is_absolute)
axisvals[loop_start + i] = valuator[i];
else
axisvals[loop_start + i] += valuator[i];
}
/*
* Deliver extension event
*/
if (!is_core) {
xev->type = DeviceMotionNotify;
xev->detail = 0;
xev->deviceid = device->id | MORE_EVENTS;
xv->type = DeviceValuator;
xv->deviceid = device->id;
xv->device_state = 0;
xv->num_valuators = num;
xv->first_valuator = loop_start;
memcpy (&xv->valuator0, &axisvals[loop_start],
sizeof(INT32)*xv->num_valuators);
if (HAS_MOTION_HISTORY(local)) {
*(Time*)buff = current;
memcpy(buff+sizeof(Time)+sizeof(INT32)*xv->first_valuator,
&axisvals[loop_start],
sizeof(INT32)*xv->num_valuators);
}
ENQUEUE(xE);
}
/*
* Deliver core event
*/
if (is_core ||
(is_shared && num_valuators >= 2 && loop_start == 0)) {
#ifdef XFreeXDGA
/*
* Let DGA peek at the event and steal it
*/
xev->type = MotionNotify;
xev->detail = 0;
if (is_absolute)
{
dx = axisvals[0] - oldaxis[0];
dy = axisvals[1] - oldaxis[1];
}
if (DGAStealMouseEvent(xf86EventQueue.pEnqueueScreen->myNum,
xE, dx, dy))
continue;
#endif
if (!(*local->conversion_proc)(local, loop_start, num,
axisvals[0], axisvals[1],
axisvals[2], axisvals[3],
axisvals[4], axisvals[5],
&x, &y))
continue;
if (drag)
miPointerAbsoluteCursor (x, y, current);
/*
* Retrieve the position
*/
miPointerPosition (&x, &y);
if (local->reverse_conversion_proc)
(*local->reverse_conversion_proc)(local, x, y, axisvals);
else
{
axisvals[0] = x;
axisvals[1] = y;
}
}
loop_start += 6;
}
}
va_end(var);
if (HAS_MOTION_HISTORY(local)) {
local->last = (local->last + 1) % device->valuator->numMotionEvents;
if (local->last == local->first)
local->first = (local->first + 1) % device->valuator->numMotionEvents;
}
DBG(5, ErrorF("xf86PostMotionEvent END 0x%x(%s) is_core=%s is_shared=%s\n",
device, device->name,
is_core ? "True" : "False",
is_shared ? "True" : "False"));
}
void
xf86PostProximityEvent(DeviceIntPtr device,
int is_in,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int loop;
xEvent xE[2];
deviceKeyButtonPointer *xev = (deviceKeyButtonPointer*) xE;
deviceValuator *xv = (deviceValuator*) xev+1;
ValuatorClassPtr val = device->valuator;
Bool is_core = xf86IsCorePointer(device);
Bool is_absolute = val && ((val->mode & 1) == Relative);
DBG(5, ErrorF("xf86PostProximityEvent BEGIN 0x%x(%s) prox=%s is_core=%s is_absolute=%s\n",
device, device->name, is_in ? "true" : "false",
is_core ? "True" : "False",
is_absolute ? "True" : "False"));
if (is_core) {
return;
}
if (num_valuators && (!val || (first_valuator + num_valuators > val->numAxes))) {
ErrorF("Bad valuators reported for device \"%s\"\n", device->name);
return;
}
xev->type = is_in ? ProximityIn : ProximityOut;
xev->detail = 0;
xev->deviceid = device->id | MORE_EVENTS;
xv->type = DeviceValuator;
xv->deviceid = device->id;
xv->device_state = 0;
if ((device->valuator->mode & 1) == Relative) {
num_valuators = 0;
}
if (num_valuators != 0) {
int *axisvals = val->axisVal;
va_start(var, num_valuators);
for(loop=0; loop<num_valuators; loop++) {
switch (loop % 6) {
case 0:
xv->valuator0 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 1:
xv->valuator1 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 2:
xv->valuator2 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 3:
xv->valuator3 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 4:
xv->valuator4 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 5:
xv->valuator5 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
}
if ((loop % 6 == 5) || (loop == num_valuators - 1)) {
xf86Info.lastEventTime = xev->time = GetTimeInMillis();
xv->num_valuators = (loop % 6) + 1;
xv->first_valuator = first_valuator + (loop / 6) * 6;
ENQUEUE(xE);
}
}
va_end(var);
}
else {
/* no valuator */
xf86Info.lastEventTime = xev->time = GetTimeInMillis();
xv->num_valuators = 0;
xv->first_valuator = 0;
ENQUEUE(xE);
}
DBG(5, ErrorF("xf86PostProximityEvent END 0x%x(%s) prox=%s is_core=%s is_absolute=%s\n",
device, device->name, is_in ? "true" : "false",
is_core ? "True" : "False",
is_absolute ? "True" : "False"));
}
void
xf86PostButtonEvent(DeviceIntPtr device,
int is_absolute,
int button,
int is_down,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int loop;
xEvent xE[2];
deviceKeyButtonPointer *xev = (deviceKeyButtonPointer*) xE;
deviceValuator *xv = (deviceValuator*) xev+1;
ValuatorClassPtr val = device->valuator;
Bool is_core = xf86IsCorePointer(device);
Bool is_shared = xf86ShareCorePointer(device);
DBG(5, ErrorF("xf86PostButtonEvent BEGIN 0x%x(%s) button=%d down=%s is_core=%s is_shared=%s is_absolute=%s\n",
device, device->name, button,
is_down ? "True" : "False",
is_core ? "True" : "False",
is_shared ? "True" : "False",
is_absolute ? "True" : "False"));
/* Check the core pointer button state not to send an inconsistent
* event. This can happen with the AlwaysCore feature.
*/
if ((is_core || is_shared) &&
!xf86CheckButton(device->button->map[button], is_down))
{
return;
}
if (num_valuators && (!val || (first_valuator + num_valuators > val->numAxes))) {
ErrorF("Bad valuators reported for device \"%s\"\n", device->name);
return;
}
if (!is_core) {
xev->type = is_down ? DeviceButtonPress : DeviceButtonRelease;
xev->detail = button;
xev->deviceid = device->id | MORE_EVENTS;
xv->type = DeviceValuator;
xv->deviceid = device->id;
xv->device_state = 0;
if (num_valuators != 0) {
int *axisvals = val->axisVal;
va_start(var, num_valuators);
for(loop=0; loop<num_valuators; loop++) {
switch (loop % 6) {
case 0:
xv->valuator0 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 1:
xv->valuator1 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 2:
xv->valuator2 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 3:
xv->valuator3 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 4:
xv->valuator4 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
case 5:
xv->valuator5 = is_absolute ? va_arg(var, int) : axisvals[loop];
break;
}
if ((loop % 6 == 5) || (loop == num_valuators - 1)) {
xf86Info.lastEventTime = xev->time = GetTimeInMillis();
xv->num_valuators = (loop % 6) + 1;
xv->first_valuator = first_valuator + (loop / 6) * 6;
ENQUEUE(xE);
}
}
va_end(var);
}
else {
/* no valuator */
xf86Info.lastEventTime = xev->time = GetTimeInMillis();
xv->num_valuators = 0;
xv->first_valuator = 0;
ENQUEUE(xE);
}
}
/* removed rootX/rootY as DIX sets these fields */
if (is_core || is_shared) {
xE->u.u.type = is_down ? ButtonPress : ButtonRelease;
xE->u.u.detail = device->button->map[button];
xf86Info.lastEventTime = xE->u.keyButtonPointer.time = GetTimeInMillis();
#ifdef XFreeXDGA
if (!DGAStealMouseEvent(xf86EventQueue.pEnqueueScreen->myNum, xE, 0, 0))
#endif
ENQUEUE(xE);
}
DBG(5, ErrorF("xf86PostButtonEvent END\n"));
}
void
xf86PostKeyEvent(DeviceIntPtr device,
unsigned int key_code,
int is_down,
int is_absolute,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int loop;
xEvent xE[2];
deviceKeyButtonPointer *xev = (deviceKeyButtonPointer*) xE;
deviceValuator *xv = (deviceValuator*) xev+1;
va_start(var, num_valuators);
for(loop=0; loop<num_valuators; loop++) {
switch (loop % 6) {
case 0:
xv->valuator0 = va_arg(var, int);
break;
case 1:
xv->valuator1 = va_arg(var, int);
break;
case 2:
xv->valuator2 = va_arg(var, int);
break;
case 3:
xv->valuator3 = va_arg(var, int);
break;
case 4:
xv->valuator4 = va_arg(var, int);
break;
case 5:
xv->valuator5 = va_arg(var, int);
break;
}
if (((loop % 6 == 5) || (loop == num_valuators - 1))) {
xev->type = is_down ? DeviceKeyPress : DeviceKeyRelease;
xev->detail = key_code;
xf86Info.lastEventTime = xev->time = GetTimeInMillis();
xev->deviceid = device->id | MORE_EVENTS;
xv->type = DeviceValuator;
xv->deviceid = device->id;
xv->device_state = 0;
/* if the device is in the relative mode we don't have to send valuators */
xv->num_valuators = is_absolute ? (loop % 6) + 1 : 0;
xv->first_valuator = first_valuator + (loop / 6) * 6;
ENQUEUE(xE);
/* if the device is in the relative mode only one event is needed */
if (!is_absolute) break;
}
}
va_end(var);
}
void
xf86PostKeyboardEvent(DeviceIntPtr device,
unsigned int key_code,
int is_down)
{
xEvent xE[2];
deviceKeyButtonPointer *xev = (deviceKeyButtonPointer*) xE;
if (xf86IsCoreKeyboard(device)) {
xev->type = is_down ? KeyPress : KeyRelease;
} else {
xev->type = is_down ? DeviceKeyPress : DeviceKeyRelease;
}
xev->detail = key_code;
xf86Info.lastEventTime = xev->time = GetTimeInMillis();
#ifdef XFreeXDGA
/* if(!DGAStealKeyEvent(xf86EventQueue.pEnqueueScreen->myNum, xE)) */
#endif
ENQUEUE(xE);
}
/*
* Motion history management.
*/
void
xf86MotionHistoryAllocate(LocalDevicePtr local)
{
ValuatorClassPtr valuator = local->dev->valuator;
if (!HAS_MOTION_HISTORY(local))
return;
if (local->motion_history) xfree(local->motion_history);
local->motion_history = xalloc((sizeof(INT32) * valuator->numAxes + sizeof(Time))
* valuator->numMotionEvents);
local->first = 0;
local->last = 0;
}
int
xf86GetMotionEvents(DeviceIntPtr dev,
xTimecoord *buff,
unsigned long start,
unsigned long stop,
ScreenPtr pScreen)
{
LocalDevicePtr local = (LocalDevicePtr)dev->public.devicePrivate;
ValuatorClassPtr valuator = dev->valuator;
int num = 0;
int loop = local->first;
int size;
Time current;
if (!HAS_MOTION_HISTORY(local))
return 0;
size = (sizeof(INT32) * valuator->numAxes + sizeof(Time));
while (loop != local->last) {
current = *(Time*)(((char *)local->motion_history)+loop*size);
if (current > stop)
return num;
if (current >= start) {
memcpy(((char *)buff)+size*num,
((char *)local->motion_history)+loop*size, size);
num++;
}
loop = (loop + 1) % valuator->numMotionEvents;
}
return num;
}
LocalDevicePtr
xf86FirstLocalDevice()
{
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 > Sxlow)
X = Sxlow;
if (X < Sxhigh)
X = Sxhigh;
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 ((xf86IsCorePointer(local->dev) || xf86ShareCorePointer(local->dev)) &&
(miPointerCurrentScreen() != screenInfo.screens[screen_number])) {
miPointerSetNewScreen (screen_number, x, y);
}
}
void
xf86InitValuatorAxisStruct(DeviceIntPtr dev, int axnum, int minval, int maxval,
int resolution, int min_res, int max_res)
{
#ifdef XINPUT
if (maxval == -1) {
if (axnum == 0)
maxval = screenInfo.screens[0]->width - 1;
else if (axnum == 1)
maxval = screenInfo.screens[0]->height - 1;
/* else? */
}
InitValuatorAxisStruct(dev, axnum, minval, maxval, resolution, min_res,
max_res);
#endif
}
/*
* Set the valuator values to be in synch with dix/event.c
* DefineInitialRootWindow().
*/
void
xf86InitValuatorDefaults(DeviceIntPtr dev, int axnum)
{
#ifdef XINPUT
if (axnum == 0)
dev->valuator->axisVal[0] = screenInfo.screens[0]->width / 2;
else if (axnum == 1)
dev->valuator->axisVal[1] = screenInfo.screens[0]->height / 2;
#endif
}
/* end of xf86Xinput.c */
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