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   1 /* Written for XI1 by Nikolas Doerfler <doerflen@in.tum.de> (c) 2008 *
   2  * Rewritten for XI2 by Florian Echtler <echtler@in.tum.de> (c) 2009 */
   3
   4 #include <GL/freeglut.h>
   5
   6 #include "../fg_internal.h"
   7
   8 #ifdef HAVE_X11_EXTENSIONS_XINPUT2_H
   9
  10 #include <errno.h>
  11 #include <stdarg.h>
  12
  13 #include <X11/Xlib.h>
  14 #include <X11/extensions/XInput2.h>
  15
  16 /* import function from freeglut_main.c */
  17 extern int fgPlatformGetModifiers( int state );
  18
  19 /* extension opcode for XInput */
  20 int xi_opcode = -1;
  21
  22 /**
  23  * \brief Sets window up for XI2 events.
  24  */
  25 void fgRegisterDevices( Display* dpy, Window* win ) {
  26
  27         XIEventMask mask;
  28         unsigned char flags[2] = { 0, 0 };
  29         int event, error;
  30
  31         /*Display* dpy = fgDisplay.pDisplay.Display;
  32         Window* win = glutGetXWindow();*/
  33
  34         /* get XInput extension opcode */
  35         if (!XQueryExtension( dpy, "XInputExtension", &xi_opcode, &event, &error )) { xi_opcode = -1; }
  36
  37         /* Select for motion events */
  38         mask.deviceid = XIAllMasterDevices;
  39         mask.mask_len = 2;
  40         mask.mask = flags;
  41
  42         XISetMask(mask.mask, XI_Enter);
  43         XISetMask(mask.mask, XI_Motion);
  44         XISetMask(mask.mask, XI_ButtonPress);
  45         XISetMask(mask.mask, XI_ButtonRelease);
  46         XISetMask(mask.mask, XI_Leave);
  47         /*XISetMask(mask.mask, XI_KeyPress);
  48         XISetMask(mask.mask, XI_KeyRelease);
  49         XISetMask(mask.mask, XI_DeviceChanged);
  50         XISetMask(mask.mask, XI_RawEvent);
  51         XISetMask(mask.mask, XI_FocusIn);
  52         XISetMask(mask.mask, XI_FocusOut);
  53         XISetMask(mask.mask, XI_HierarchyChanged);*/
  54
  55         XISelectEvents( dpy, *win, &mask, 1 );
  56 }
  57
  58
  59 void fgPrintXILeaveEvent(XILeaveEvent* event)
  60 {
  61     char* mode = "";
  62                 char* detail = "";
  63     int i;
  64
  65     printf("    windows: root 0x%lx event 0x%lx child 0x%ld\n",
  66             event->root, event->event, event->child);
  67     switch(event->mode)
  68     {
  69         case NotifyNormal:       mode = "NotifyNormal"; break;
  70         case NotifyGrab:         mode = "NotifyGrab"; break;
  71         case NotifyUngrab:       mode = "NotifyUngrab"; break;
  72         case NotifyWhileGrabbed: mode = "NotifyWhileGrabbed"; break;
  73     }
  74     switch (event->detail)
  75     {
  76         case NotifyAncestor: detail = "NotifyAncestor"; break;
  77         case NotifyVirtual: detail = "NotifyVirtual"; break;
  78         case NotifyInferior: detail = "NotifyInferior"; break;
  79         case NotifyNonlinear: detail = "NotifyNonlinear"; break;
  80         case NotifyNonlinearVirtual: detail = "NotifyNonlinearVirtual"; break;
  81         case NotifyPointer: detail = "NotifyPointer"; break;
  82         case NotifyPointerRoot: detail = "NotifyPointerRoot"; break;
  83         case NotifyDetailNone: detail = "NotifyDetailNone"; break;
  84     }
  85     printf("    mode: %s (detail %s)\n", mode, detail);
  86     printf("    flags: %s %s\n", event->focus ? "[focus]" : "",
  87                                  event->same_screen ? "[same screen]" : "");
  88     printf("    buttons:");
  89     for (i = 0; i < event->buttons.mask_len * 8; i++)
  90         if (XIMaskIsSet(event->buttons.mask, i))
  91             printf(" %d", i);
  92     printf("\n");
  93
  94     printf("    modifiers: locked 0x%x latched 0x%x base 0x%x\n",
  95             event->mods.locked, event->mods.latched,
  96             event->mods.base);
  97     printf("    group: locked 0x%x latched 0x%x base 0x%x\n",
  98             event->group.locked, event->group.latched,
  99             event->group.base);
 100
 101     printf("    root x/y:  %.2f / %.2f\n", event->root_x, event->root_y);
 102     printf("    event x/y: %.2f / %.2f\n", event->event_x, event->event_y);
 103
 104 }
 105
 106
 107 void fgPrintXIDeviceEvent(XIDeviceEvent* event)
 108 {
 109     double *val;
 110     int i;
 111
 112     printf("    device: %d (%d)\n", event->deviceid, event->sourceid);
 113     printf("    detail: %d\n", event->detail);
 114     printf("    buttons:");
 115           for (i = 0; i < event->buttons.mask_len * 8; i++)
 116             if (XIMaskIsSet(event->buttons.mask, i))
 117               printf(" %d", i);
 118     printf("\n");
 119
 120     printf("    modifiers: locked 0x%x latched 0x%x base 0x%x\n",
 121             event->mods.locked, event->mods.latched,
 122             event->mods.base);
 123     printf("    group: locked 0x%x latched 0x%x base 0x%x\n",
 124             event->group.locked, event->group.latched,
 125             event->group.base);
 126     printf("    valuators:");
 127
 128     val = event->valuators.values;
 129     for (i = 0; i < event->valuators.mask_len * 8; i++)
 130         if (XIMaskIsSet(event->valuators.mask, i))
 131             printf(" %d: %.2f", i, *val++);
 132     printf("\n");
 133
 134     printf("    windows: root 0x%lx event 0x%lx child 0x%ld\n",
 135             event->root, event->event, event->child);
 136     printf("    root x/y:  %.2f / %.2f\n", event->root_x, event->root_y);
 137     printf("    event x/y: %.2f / %.2f\n", event->event_x, event->event_y);
 138
 139 }
 140
 141 /**
 142  * \brief This function is called when an Extension Event is received
 143  * and calls the corresponding callback functions for these events.
 144  */
 145 void fgHandleExtensionEvents( XEvent* base_ev )
 146 {
 147         XEvent std_ev;  /* standard single-pointer event to be added to the event queue */
 148         int i, button = 0;
 149         XGenericEventCookie* cookie = (XGenericEventCookie*)&(base_ev->xcookie);
 150
 151         /* initialize the generic fields from base_ev */
 152         std_ev.xany = base_ev->xany;
 153
 154         if ( XGetEventData( fgDisplay.pDisplay.Display, cookie ) && (cookie->type == GenericEvent) && (cookie->extension == xi_opcode) ) {
 155
 156                 XIDeviceEvent* event = (XIDeviceEvent*)(cookie->data);
 157                 XIEnterEvent *evcross;
 158                 /*printf("XI2 event type: %d - %d\n", cookie->evtype, event->type );*/
 159
 160                 SFG_Window* window = fgWindowByHandle( event->event );
 161                 if (!window) return;
 162
 163                 switch (cookie->evtype) {
 164                 case XI_Enter:
 165                 case XI_Leave:
 166                         evcross = (XIEnterEvent*)event;
 167
 168                         fgState.Modifiers = fgPlatformGetModifiers( evcross->mods.base );
 169                         INVOKE_WCB( *window, MultiEntry, (
 170                                 event->deviceid,
 171                                 (event->evtype == XI_Enter ? GLUT_ENTERED : GLUT_LEFT)
 172                         ));
 173                         #if _DEBUG
 174                         fgPrintXILeaveEvent((XILeaveEvent*)event);
 175                         #endif
 176
 177                         /* Also process the standard crossing event */
 178                         std_ev.type = evcross->evtype == XI_Enter ? EnterNotify : LeaveNotify;
 179                         std_ev.xcrossing.window = evcross->event;
 180                         std_ev.xcrossing.root = evcross->root;
 181                         std_ev.xcrossing.subwindow = evcross->child;
 182                         std_ev.xcrossing.x = evcross->event_x;
 183                         std_ev.xcrossing.y = evcross->event_y;
 184                         std_ev.xcrossing.x_root = evcross->root_x;
 185                         std_ev.xcrossing.y_root = evcross->root_y;
 186                         std_ev.xcrossing.mode = evcross->mode;
 187                         std_ev.xcrossing.detail = evcross->detail;
 188                         std_ev.xcrossing.same_screen = evcross->same_screen;
 189                         std_ev.xcrossing.focus = evcross->focus;
 190                         std_ev.xcrossing.state = *(unsigned int*)evcross->buttons.mask;
 191
 192                         XPutBackEvent(fgDisplay.pDisplay.Display, &std_ev);
 193                         break;
 194
 195                 case XI_ButtonPress:
 196                 case XI_ButtonRelease:
 197                         fgState.Modifiers = fgPlatformGetModifiers( event->mods.base );
 198                         INVOKE_WCB( *window, MultiButton, (
 199                                 event->deviceid,
 200                                 event->event_x,
 201                                 event->event_y,
 202                                 event->detail-1,
 203                                 (event->evtype == XI_ButtonPress ? GLUT_DOWN : GLUT_UP)
 204                         ));
 205
 206                         /* Also process the standard button event */
 207                         std_ev.type = event->evtype == XI_ButtonPress ? ButtonPress : ButtonRelease;
 208                         std_ev.xbutton.window = event->event;
 209                         std_ev.xbutton.root = event->root;
 210                         std_ev.xbutton.subwindow = event->child;
 211                         std_ev.xbutton.x = event->event_x;
 212                         std_ev.xbutton.y = event->event_y;
 213                         std_ev.xbutton.x_root = event->root_x;
 214                         std_ev.xbutton.y_root = event->root_y;
 215                         std_ev.xbutton.state = *(unsigned int*)event->buttons.mask;
 216                         std_ev.xbutton.button = event->detail;
 217
 218                         XPutBackEvent(fgDisplay.pDisplay.Display, &std_ev);
 219                         break;
 220
 221                 case XI_Motion:
 222                         fgState.Modifiers = fgPlatformGetModifiers( event->mods.base );
 223                         for (i = 0; i < event->buttons.mask_len; i++) {
 224                                 if (event->buttons.mask[i]) {
 225                                         button = 1;
 226                                 }
 227                         }
 228                         if (button) {
 229                                 INVOKE_WCB( *window, MultiMotion,  ( event->deviceid, event->event_x, event->event_y ) );
 230                         } else {
 231                                 INVOKE_WCB( *window, MultiPassive, ( event->deviceid, event->event_x, event->event_y ) );
 232                         }
 233                         #if _DEBUG
 234                         fgPrintXIDeviceEvent(event);
 235                         #endif
 236
 237                         /* Also process the standard motion event */
 238                         std_ev.type = MotionNotify;
 239                         std_ev.xmotion.window = event->event;
 240                         std_ev.xmotion.root = event->root;
 241                         std_ev.xmotion.subwindow = event->child;
 242                         std_ev.xmotion.time = event->time;
 243                         std_ev.xmotion.x = event->event_x;
 244                         std_ev.xmotion.y = event->event_y;
 245                         std_ev.xmotion.x_root = event->root_x;
 246                         std_ev.xmotion.y_root = event->root_y;
 247                         std_ev.xmotion.state = *(unsigned int*)event->buttons.mask;
 248                         std_ev.xmotion.is_hint = NotifyNormal;
 249
 250                         XPutBackEvent(fgDisplay.pDisplay.Display, &std_ev);
 251                         break;
 252
 253                 default:
 254                         #if _DEBUG
 255                         fgWarning( "Unknown XI2 device event:" );
 256                         fgPrintXIDeviceEvent( event );
 257                         #endif
 258                         break;
 259                 }
 260                 fgState.Modifiers = INVALID_MODIFIERS;
 261         }
 262         XFreeEventData( fgDisplay.pDisplay.Display, cookie );
 263 }
 264
 265 #endif