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xserver-multidpi/hw/dmx/input/dmxevents.c

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Add Distributed Multihead X (DMX) support
2004-06-30 22:06:56 +02:00
/* $XFree86$ */
/*
* Copyright 2002-2003 Red Hat Inc., Durham, North Carolina.
*
* All Rights Reserved.
*
* 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 on 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
* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
* 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.
*/
/*
* Authors:
* Rickard E. (Rik) Faith <faith@redhat.com>
*
*/
/** \file
* Provide support and helper functions for enqueing events received by
* the low-level input drivers. */
#define DMX_EVENTS_DEBUG 0
#include "dmxinputinit.h"
#include "dmxevents.h"
#include "dmxcb.h"
#include "dmxcommon.h"
#include "dmxcursor.h"
#include "dmxmotion.h"
#include "dmxeq.h"
#include "dmxsigio.h"
#include "dmxmap.h"
#include "keysym.h"
#include "opaque.h"
#include "inputstr.h"
#include "mipointer.h"
#ifdef XINPUT
#include "XIstubs.h"
#endif
static int dmxGlobalX, dmxGlobalY; /* Global cursor position */
static int dmxGlobalInvalid; /* Flag indicating dmxCoreMotion
* should move the mouse anyway. */
#if DMX_EVENTS_DEBUG
#define DMXDBG0(f) dmxLog(dmxDebug,f)
#define DMXDBG1(f,a) dmxLog(dmxDebug,f,a)
#define DMXDBG2(f,a,b) dmxLog(dmxDebug,f,a,b)
#define DMXDBG3(f,a,b,c) dmxLog(dmxDebug,f,a,b,c)
#define DMXDBG4(f,a,b,c,d) dmxLog(dmxDebug,f,a,b,c,d)
#define DMXDBG5(f,a,b,c,d,e) dmxLog(dmxDebug,f,a,b,c,d,e)
#define DMXDBG6(f,a,b,c,d,e,g) dmxLog(dmxDebug,f,a,b,c,d,e,g)
#define DMXDBG7(f,a,b,c,d,e,g,h) dmxLog(dmxDebug,f,a,b,c,d,e,g,h)
#else
#define DMXDBG0(f)
#define DMXDBG1(f,a)
#define DMXDBG2(f,a,b)
#define DMXDBG3(f,a,b,c)
#define DMXDBG4(f,a,b,c,d)
#define DMXDBG5(f,a,b,c,d,e)
#define DMXDBG6(f,a,b,c,d,e,g)
#define DMXDBG7(f,a,b,c,d,e,g,h)
#endif
static int dmxApplyFunctions(DMXInputInfo *dmxInput, DMXFunctionType f)
{
int i;
int rc = 0;
for (i = 0; i < dmxInput->numDevs; i+= dmxInput->devs[i]->binding)
if (dmxInput->devs[i]->functions)
rc += dmxInput->devs[i]->functions(dmxInput->devs[i]->private, f);
return rc;
}
static int dmxCheckFunctionKeys(DMXLocalInputInfoPtr dmxLocal,
int type,
KeySym keySym)
{
DMXInputInfo *dmxInput = &dmxInputs[dmxLocal->inputIdx];
unsigned short state = 0;
if (dmxLocal->sendsCore)
state = dmxLocalCoreKeyboard->pDevice->key->state;
else if (dmxLocal->pDevice->key)
state = dmxLocal->pDevice->key->state;
DMXDBG3("dmxCheckFunctionKeys: keySym=0x%04x %s state=0x%04x\n",
keySym, type == KeyPress ? "press" : "release", state);
if ((state & (ControlMask|Mod1Mask)) != (ControlMask|Mod1Mask)) return 0;
switch (keySym) {
case XK_g:
if (type == KeyPress)
dmxApplyFunctions(dmxInput, DMX_FUNCTION_GRAB);
return 1;
case XK_f:
if (type == KeyPress)
dmxApplyFunctions(dmxInput, DMX_FUNCTION_FINE);
return 1;
case XK_q:
if (type == KeyPress && dmxLocal->sendsCore)
if (dmxApplyFunctions(dmxInput, DMX_FUNCTION_TERMINATE)) {
dmxLog(dmxInfo, "User request for termination\n");
dispatchException |= DE_TERMINATE;
}
return 1;
}
return 0;
}
#ifdef XINPUT
static void dmxEnqueueExtEvent(DMXLocalInputInfoPtr dmxLocal, xEvent *e,
DMXBlockType block)
{
xEvent xE[2];
deviceKeyButtonPointer *xev = (deviceKeyButtonPointer *)xE;
deviceValuator *xv = (deviceValuator *)xev+1;
DeviceIntPtr pDevice = dmxLocal->pDevice;
DMXInputInfo *dmxInput = &dmxInputs[dmxLocal->inputIdx];
int type = e->u.u.type;
switch (e->u.u.type) {
case KeyPress: type = DeviceKeyPress; break;
case KeyRelease: type = DeviceKeyRelease; break;
case ButtonPress: type = DeviceButtonPress; break;
case ButtonRelease: type = DeviceButtonRelease; break;
case MotionNotify:
dmxLog(dmxError,
"dmxEnqueueExtEvent: MotionNotify not allowed here\n");
return;
default:
if (e->u.u.type == ProximityIn || e->u.u.type == ProximityOut) break;
dmxLogInput(dmxInput,
"dmxEnqueueExtEvent: Unhandled %s event (%d)\n",
e->u.u.type >= LASTEvent ? "extension" : "non-extension",
e->u.u.type);
return;
}
xev->type = type;
xev->detail = e->u.u.detail;
xev->deviceid = pDevice->id | MORE_EVENTS;
xev->time = e->u.keyButtonPointer.time;
xv->type = DeviceValuator;
xv->deviceid = pDevice->id;
xv->num_valuators = 0;
xv->first_valuator = 0;
if (block) dmxSigioBlock();
dmxeqEnqueue(xE);
if (block) dmxSigioUnblock();
}
#endif
DMXScreenInfo *dmxFindFirstScreen(int x, int y)
{
int i;
for (i = 0; i < dmxNumScreens; i++) {
DMXScreenInfo *dmxScreen = &dmxScreens[i];
if (dmxOnScreen(x, y, dmxScreen)) return dmxScreen;
}
return NULL;
}
void dmxCoreMotion(int x, int y, int delta, DMXBlockType block)
{
DMXScreenInfo *dmxScreen;
DMXInputInfo *dmxInput;
ScreenPtr pScreen;
int localX;
int localY;
int i;
if (!dmxGlobalInvalid && dmxGlobalX == x && dmxGlobalY == y) return;
DMXDBG5("dmxCoreMotion(%d,%d,%d) dmxGlobalX=%d dmxGlobalY=%d\n",
x, y, delta, dmxGlobalX, dmxGlobalY);
dmxGlobalInvalid = 0;
dmxGlobalX = x;
dmxGlobalY = y;
if (dmxGlobalX < 0) dmxGlobalX = 0;
if (dmxGlobalY < 0) dmxGlobalY = 0;
if (dmxGlobalX >= dmxGlobalWidth) dmxGlobalX = dmxGlobalWidth + delta -1;
if (dmxGlobalY >= dmxGlobalHeight) dmxGlobalY = dmxGlobalHeight + delta -1;
if ((dmxScreen = dmxFindFirstScreen(dmxGlobalX, dmxGlobalY))) {
localX = dmxGlobalX - dmxScreen->rootXOrigin;
localY = dmxGlobalY - dmxScreen->rootYOrigin;
if ((pScreen = miPointerCurrentScreen())
&& pScreen->myNum == dmxScreen->index) {
/* Screen is old screen */
if (block) dmxSigioBlock();
miPointerAbsoluteCursor(localX, localY, GetTimeInMillis());
if (block) dmxSigioUnblock();
} else {
/* Screen is new */
DMXDBG4(" New screen: old=%d new=%d localX=%d localY=%d\n",
pScreen->myNum, dmxScreen->index, localX, localY);
if (block) dmxSigioBlock();
dmxeqProcessInputEvents();
miPointerSetNewScreen(dmxScreen->index, localX, localY);
miPointerAbsoluteCursor(localX, localY, GetTimeInMillis());
if (block) dmxSigioUnblock();
}
miPointerPosition(&localX, &localY);
if ((pScreen = miPointerCurrentScreen())) {
dmxGlobalX = localX + dmxScreens[pScreen->myNum].rootXOrigin;
dmxGlobalY = localY + dmxScreens[pScreen->myNum].rootYOrigin;
DMXDBG6(" Moved to dmxGlobalX=%d dmxGlobalY=%d"
" on screen index=%d/%d localX=%d localY=%d\n",
dmxGlobalX, dmxGlobalY,
dmxScreen ? dmxScreen->index : -1, pScreen->myNum,
localX, localY);
}
}
/* Send updates down to all core input
* drivers */
for (i = 0, dmxInput = &dmxInputs[0]; i < dmxNumInputs; i++, dmxInput++) {
int j;
for (j = 0; j < dmxInput->numDevs; j += dmxInput->devs[j]->binding)
if (!dmxInput->detached
&& dmxInput->devs[j]->sendsCore
&& dmxInput->devs[j]->update_position)
dmxInput->devs[j]->update_position(dmxInput->devs[j]->private,
dmxGlobalX, dmxGlobalY);
}
if (!dmxScreen) ProcessInputEvents();
}
#ifdef XINPUT
#define DMX_MAX_AXES 32 /* Max axes reported by this routine */
static void dmxExtMotion(DMXLocalInputInfoPtr dmxLocal,
int *v, int firstAxis, int axesCount,
DMXMotionType type, DMXBlockType block)
{
DeviceIntPtr pDevice = dmxLocal->pDevice;
xEvent xE[2 * DMX_MAX_AXES/6];
deviceKeyButtonPointer *xev = (deviceKeyButtonPointer *)xE;
deviceValuator *xv = (deviceValuator *)xev+1;
int thisX = 0;
int thisY = 0;
int i;
int count;
memset(xE, 0, sizeof(xE));
if (axesCount > DMX_MAX_AXES) axesCount = DMX_MAX_AXES;
if (!pDevice->valuator->mode && axesCount == 2) {
/* The dmx console is a relative mode
* device that sometimes reports
* absolute motion. It only has two
* axes. */
if (type == DMX_RELATIVE) {
thisX = -v[0];
thisY = -v[1];
dmxLocal->lastX += thisX;
dmxLocal->lastY += thisY;
if (dmxLocal->update_position)
dmxLocal->update_position(dmxLocal->private,
dmxLocal->lastX, dmxLocal->lastY);
} else { /* Convert to relative */
if (dmxLocal->lastX || dmxLocal->lastY) {
thisX = v[0] - dmxLocal->lastX;
thisY = v[1] - dmxLocal->lastY;
}
dmxLocal->lastX = v[0];
dmxLocal->lastY = v[1];
}
v[0] = thisX;
v[1] = thisY;
}
if (axesCount <= 6) {
/* Optimize for the common case when
* only 1 or 2 axes change. */
xev->time = GetTimeInMillis();
xev->type = DeviceMotionNotify;
xev->detail = 0;
xev->deviceid = pDevice->id | MORE_EVENTS;
xv->type = DeviceValuator;
xv->deviceid = pDevice->id;
xv->num_valuators = axesCount;
xv->first_valuator = firstAxis;
switch (xv->num_valuators) {
case 6: xv->valuator5 = v[5];
case 5: xv->valuator4 = v[4];
case 4: xv->valuator3 = v[3];
case 3: xv->valuator2 = v[2];
case 2: xv->valuator1 = v[1];
case 1: xv->valuator0 = v[0];
}
count = 2;
} else {
for (i = 0, count = 0; i < axesCount; i += 6) {
xev->time = GetTimeInMillis();
xev->type = DeviceMotionNotify;
xev->detail = 0;
xev->deviceid = pDevice->id | MORE_EVENTS;
xev += 2;
xv->type = DeviceValuator;
xv->deviceid = pDevice->id;
xv->num_valuators = (i+6 >= axesCount ? axesCount - i : 6);
xv->first_valuator = firstAxis + i;
switch (xv->num_valuators) {
case 6: xv->valuator5 = v[i+5];
case 5: xv->valuator4 = v[i+4];
case 4: xv->valuator3 = v[i+3];
case 3: xv->valuator2 = v[i+2];
case 2: xv->valuator1 = v[i+1];
case 1: xv->valuator0 = v[i+0];
}
xv += 2;
count += 2;
}
}
if (block) dmxSigioBlock();
dmxPointerPutMotionEvent(pDevice, firstAxis, axesCount, v, xev->time);
dmxeqEnqueue(xE);
if (block) dmxSigioUnblock();
}
static int dmxTranslateAndEnqueueExtEvent(DMXLocalInputInfoPtr dmxLocal,
XEvent *e, DMXBlockType block)
{
xEvent xE[2];
deviceKeyButtonPointer *xev = (deviceKeyButtonPointer *)xE;
deviceValuator *xv = (deviceValuator *)xev+1;
int type;
int event = -1;
XDeviceKeyEvent *ke = (XDeviceKeyEvent *)e;
XDeviceMotionEvent *me = (XDeviceMotionEvent *)e;
if (!e) return -1; /* No extended event passed, cannot handle */
if ((XID)dmxLocal->deviceId != ke->deviceid) {
/* Search for the correct dmxLocal,
* since backend and console events are
* picked up for the first device on
* that X server. */
int i;
DMXInputInfo *dmxInput = &dmxInputs[dmxLocal->inputIdx];
for (i = 0; i < dmxInput->numDevs; i++) {
dmxLocal = dmxInput->devs[i];
if ((XID)dmxLocal->deviceId == ke->deviceid) break;
}
}
if ((XID)dmxLocal->deviceId != ke->deviceid
|| (type = dmxMapLookup(dmxLocal, e->type)) < 0)
return -1; /* No mapping, so this event is unhandled */
switch (type) {
case XI_DeviceValuator: event = DeviceValuator; break;
case XI_DeviceKeyPress: event = DeviceKeyPress; break;
case XI_DeviceKeyRelease: event = DeviceKeyRelease; break;
case XI_DeviceButtonPress: event = DeviceButtonPress; break;
case XI_DeviceButtonRelease: event = DeviceButtonRelease; break;
case XI_DeviceMotionNotify: event = DeviceMotionNotify; break;
case XI_DeviceFocusIn: event = DeviceFocusIn; break;
case XI_DeviceFocusOut: event = DeviceFocusOut; break;
case XI_ProximityIn: event = ProximityIn; break;
case XI_ProximityOut: event = ProximityOut; break;
case XI_DeviceStateNotify: event = DeviceStateNotify; break;
case XI_DeviceMappingNotify: event = DeviceMappingNotify; break;
case XI_ChangeDeviceNotify: event = ChangeDeviceNotify; break;
case XI_DeviceKeystateNotify: event = DeviceStateNotify; break;
case XI_DeviceButtonstateNotify: event = DeviceStateNotify; break;
}
switch (type) {
case XI_DeviceKeyPress:
case XI_DeviceKeyRelease:
case XI_DeviceButtonPress:
case XI_DeviceButtonRelease:
case XI_ProximityIn:
case XI_ProximityOut:
xev->type = event;
xev->detail = ke->keycode; /* same as ->button */
xev->deviceid = dmxLocal->pDevice->id | MORE_EVENTS;
xev->time = GetTimeInMillis();
xv->type = DeviceValuator;
xv->deviceid = dmxLocal->pDevice->id;
xv->num_valuators = ke->axes_count;
xv->first_valuator = ke->first_axis;
xv->valuator0 = ke->axis_data[0];
xv->valuator1 = ke->axis_data[1];
xv->valuator2 = ke->axis_data[2];
xv->valuator3 = ke->axis_data[3];
xv->valuator4 = ke->axis_data[4];
xv->valuator5 = ke->axis_data[5];
if (block) dmxSigioBlock();
dmxeqEnqueue(xE);
if (block) dmxSigioUnblock();
break;
case XI_DeviceMotionNotify:
dmxExtMotion(dmxLocal, me->axis_data, me->first_axis, me->axes_count,
DMX_ABSOLUTE, block);
break;
case XI_DeviceFocusIn:
case XI_DeviceFocusOut:
case XI_DeviceStateNotify:
case XI_DeviceMappingNotify:
case XI_ChangeDeviceNotify:
case XI_DeviceKeystateNotify:
case XI_DeviceButtonstateNotify:
/* These are ignored, since DMX will
* generate its own events of these
* types, as necessary.
* Perhaps ChangeDeviceNotify should
* generate an error, because it is
* unexpected? */
break;
case XI_DeviceValuator:
default:
dmxLog(dmxWarning,
"XInput extension event (remote=%d -> zero-based=%d)"
" not supported yet\n", e->type, type);
return -1;
}
return 0;
}
#endif
static int dmxGetButtonMapping(DMXLocalInputInfoPtr dmxLocal, int button)
{
ButtonClassPtr b = dmxLocal->pDevice->button;
if (button > b->numButtons) { /* This shouldn't happen. */
dmxLog(dmxWarning, "Button %d pressed, but only %d buttons?!?\n",
button, b->numButtons);
return button;
}
return b->map[button];
}
/** Return DMX's notion of the pointer position in the global coordinate
* space. */
void dmxGetGlobalPosition(int *x, int *y)
{
*x = dmxGlobalX;
*y = dmxGlobalY;
}
/** Invalidate the global position for #dmxCoreMotion. */
void dmxInvalidateGlobalPosition(void)
{
dmxGlobalInvalid = 1;
}
/** Enqueue a motion event for \a pDev. The \a v vector has length \a
* axesCount, and contains values for each of the axes, starting at \a
* firstAxes.
*
* The \a type of the motion may be \a DMX_RELATIVE, \a DMX_ABSOLUTE, or
* \a DMX_ABSOLUTE_CONFINED (in the latter case, the pointer will not be
* allowed to move outside the global boundaires).
*
* If \a block is set to \a DMX_BLOCK, then the SIGIO handler will be
* blocked around calls to #dmxeqEnqueue(). */
void dmxMotion(DevicePtr pDev, int *v, int firstAxes, int axesCount,
DMXMotionType type, DMXBlockType block)
{
#ifdef XINPUT
GETDMXLOCALFROMPDEV;
if (!dmxLocal->sendsCore) {
dmxExtMotion(dmxLocal, v, firstAxes, axesCount, type, block);
return;
}
#endif
if (axesCount == 2) switch (type) {
case DMX_RELATIVE: dmxCoreMotion(dmxGlobalX - v[0],
dmxGlobalY - v[1],
0, block); break;
case DMX_ABSOLUTE: dmxCoreMotion(v[0], v[1], 0, block); break;
case DMX_ABSOLUTE_CONFINED: dmxCoreMotion(v[0], v[1], -1, block); break;
}
}
static KeySym dmxKeyCodeToKeySym(DMXLocalInputInfoPtr dmxLocal,
KeyCode keyCode)
{
KeySymsPtr pKeySyms = NULL;
if (!dmxLocal || !dmxLocal->pDevice || !dmxLocal->pDevice->key)
return NoSymbol;
pKeySyms = &dmxLocal->pDevice->key->curKeySyms;
if (!pKeySyms) return NoSymbol;
if (keyCode > pKeySyms->minKeyCode && keyCode <= pKeySyms->maxKeyCode) {
DMXDBG2("dmxKeyCodeToKeySym: Translated keyCode=%d to keySym=0x%04x\n",
keyCode,
pKeySyms->map[(keyCode - pKeySyms->minKeyCode)
* pKeySyms->mapWidth]);
return pKeySyms->map[(keyCode - pKeySyms->minKeyCode)
* pKeySyms->mapWidth];
}
return NoSymbol;
}
static KeyCode dmxKeySymToKeyCode(DMXLocalInputInfoPtr dmxLocal, KeySym keySym,
int tryFirst)
{
KeySymsPtr pKeySyms = &dmxLocal->pDevice->key->curKeySyms;
int i;
/* Optimize for similar maps */
if (tryFirst >= pKeySyms->minKeyCode
&& tryFirst <= pKeySyms->maxKeyCode
&& pKeySyms->map[(tryFirst - pKeySyms->minKeyCode)
* pKeySyms->mapWidth] == keySym)
return tryFirst;
for (i = pKeySyms->minKeyCode; i <= pKeySyms->maxKeyCode; i++) {
if (pKeySyms->map[(i - pKeySyms->minKeyCode)
* pKeySyms->mapWidth] == keySym) {
DMXDBG3("dmxKeySymToKeyCode: Translated keySym=0x%04x to"
" keyCode=%d (reverses to core keySym=0x%04x)\n",
keySym, i, dmxKeyCodeToKeySym(dmxLocalCoreKeyboard,i));
return i;
}
}
return 0;
}
static int dmxFixup(DevicePtr pDev, int detail, KeySym keySym)
{
GETDMXLOCALFROMPDEV;
int keyCode;
if (!dmxLocal->pDevice->key) {
dmxLog(dmxWarning, "dmxFixup: not a keyboard device (%s)\n",
dmxLocal->pDevice->name);
return NoSymbol;
}
if (!keySym) keySym = dmxKeyCodeToKeySym(dmxLocal, detail);
if (keySym == NoSymbol) return detail;
keyCode = dmxKeySymToKeyCode(dmxLocalCoreKeyboard, keySym, detail);
return keyCode ? keyCode : detail;
}
/** Enqueue a non-motion event from the \a pDev device with the
* specified \a type and \a detail. If the event is a KeyPress or
* KeyRelease event, then the \a keySym is also specified.
*
* If \a block is set to \a DMX_BLOCK, then the SIGIO handler will be
* blocked around calls to #dmxeqEnqueue(). */
void dmxEnqueue(DevicePtr pDev, int type, int detail, KeySym keySym,
XEvent *e, DMXBlockType block)
{
GETDMXINPUTFROMPDEV;
xEvent xE;
DMXDBG2("dmxEnqueue: Enqueuing type=%d detail=0x%0x\n", type, detail);
switch (type) {
case KeyPress:
case KeyRelease:
if (!keySym) keySym = dmxKeyCodeToKeySym(dmxLocal, detail);
if (dmxCheckFunctionKeys(dmxLocal, type, keySym))
return;
if (dmxLocal->sendsCore && dmxLocal != dmxLocalCoreKeyboard)
xE.u.u.detail = dmxFixup(pDev, detail, keySym);
break;
case ButtonPress:
case ButtonRelease:
detail = dmxGetButtonMapping(dmxLocal, detail);
break;
case MotionNotify:
/* All MotionNotify events should be sent via dmxCoreMotion and
* dmxExtMotion -- no input driver should build motion events by
* hand. */
dmxLog(dmxError, "dmxEnqueueXEvent: MotionNotify not allowed here\n");
break;
/* Always ignore these events */
case EnterNotify:
case LeaveNotify:
case KeymapNotify:
case MappingNotify: /* This is sent because we change the
* modifier map on the backend/console
* input device so that we have complete
* control of the input device LEDs. */
return;
default:
#ifdef XINPUT
if (type == ProximityIn || type == ProximityOut) {
if (dmxLocal->sendsCore) return; /* Not a core event */
break;
}
#endif
if (type >= LASTEvent) {
#ifdef XINPUT
if (dmxTranslateAndEnqueueExtEvent(dmxLocal, e, block))
#endif
dmxLogInput(dmxInput, "Unhandled extension event: %d\n", type);
} else {
dmxLogInput(dmxInput, "Unhandled event: %d (%s)\n",
type, dmxEventName(type));
}
return;
}
memset(&xE, 0, sizeof(xE));
xE.u.u.type = type;
xE.u.u.detail = detail;
xE.u.keyButtonPointer.time = GetTimeInMillis();
#ifdef XINPUT
if (!dmxLocal->sendsCore) dmxEnqueueExtEvent(dmxLocal, &xE, block);
else
#endif
dmxeqEnqueue(&xE);
}
/** A pointer to this routine is passed to low-level input drivers so
* that all special keychecking is unified to this file. This function
* returns 0 if no special keys have been pressed. If the user has
* requested termination of the DMX server, -1 is returned. If the user
* has requested a switch to a VT, then the (1-based) number of that VT
* is returned. */
int dmxCheckSpecialKeys(DevicePtr pDev, KeySym keySym)
{
GETDMXINPUTFROMPDEV;
int vt = 0;
unsigned short state = 0;
if (dmxLocal->sendsCore)
state = dmxLocalCoreKeyboard->pDevice->key->state;
else if (dmxLocal->pDevice->key)
state = dmxLocal->pDevice->key->state;
if (!dmxLocal->sendsCore) return 0; /* Only for core devices */
DMXDBG2("dmxCheckSpecialKeys: keySym=0x%04x state=0x%04x\n", keySym,state);
if ((state & (ControlMask|Mod1Mask)) != (ControlMask|Mod1Mask)) return 0;
switch (keySym) {
case XK_F1:
case XK_F2:
case XK_F3:
case XK_F4:
case XK_F5:
case XK_F6:
case XK_F7:
case XK_F8:
case XK_F9:
case XK_F10:
vt = keySym - XK_F1 + 1;
break;
case XK_F11:
case XK_F12:
vt = keySym - XK_F11 + 11;
break;
case XK_q: /* To avoid confusion */
case XK_BackSpace:
case XK_Delete:
case XK_KP_Delete:
dmxLog(dmxInfo, "User request for termination\n");
dispatchException |= DE_TERMINATE;
return -1; /* Terminate */
}
if (vt) {
dmxLog(dmxInfo, "Request to switch to VT %d\n", vt);
dmxInput->vt_switch_pending = vt;
return vt;
}
return 0; /* Do nothing */
}