input: add support for RawDeviceEvents.

Xi/exevents.c

@@ -75,6 +75,7 @@ SOFTWARE.
 #include "listdev.h" /* for CopySwapXXXClass */
 #include "xace.h"
 #include "querydev.h" /* For List*Info */
+#include "eventconvert.h"
 
 #include <X11/extensions/XKBproto.h>
 #include "xkbsrv.h"
@@ -914,6 +915,33 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event)
     return DEFAULT;
 }
 
+static void
+ProcessRawEvent(RawDeviceEvent *ev, DeviceIntPtr device)
+{
+    GrabPtr grab = device->deviceGrab.grab;
+
+    if (grab)
+        DeliverGrabbedEvent(ev, device, FALSE);
+    else { /* deliver to all root windows */
+        xEvent *xi;
+        int i;
+
+        i = EventToXI2((InternalEvent*)ev, (xEvent**)&xi);
+        if (i != Success)
+        {
+            ErrorF("[Xi] %s: XI2 conversion failed in ProcessRawEvent (%d)\n",
+                    device->name, i);
+            return;
+        }
+
+        for (i = 0; i < screenInfo.numScreens; i++)
+            DeliverEventsToWindow(device, WindowTable[i], xi, 1,
+                                  GetEventFilter(device, xi), NULL,
+                                  device->id);
+        xfree(xi);
+    }
+}
+
 /**
  * Main device event processing function.
  * Called from when processing the events from the event queue.
@@ -935,6 +963,12 @@ ProcessOtherEvent(InternalEvent *ev, DeviceIntPtr device)
 
     CHECKEVENT(ev);
 
+    if (ev->u.any.type == ET_Raw)
+    {
+        ProcessRawEvent((RawDeviceEvent*)ev, device);
+        return;
+    }
+
     if (IsPointerDevice(device))
     {
         kbd = GetPairedDevice(device);

dix/eventconvert.c

@@ -52,6 +52,7 @@ static int getValuatorEvents(DeviceEvent *ev, deviceValuator *xv);
 static int eventToKeyButtonPointer(DeviceEvent *ev, xEvent **xi, int *count);
 static int eventToClassesChanged(DeviceChangedEvent *ev, xEvent **dcce);
 static int eventToDeviceEvent(DeviceEvent *ev, xEvent **xi);
+static int eventToRawEvent(RawDeviceEvent *ev, xEvent **xi);
 /**
  * Convert the given event to the respective core event.
  *
@@ -126,6 +127,7 @@ EventToXI(InternalEvent *ev, xEvent **xi, int *count)
         case ET_ProximityOut:
             return eventToKeyButtonPointer((DeviceEvent*)ev, xi, count);
         case ET_DeviceChanged:
+        case ET_Raw:
             *count = 0;
             *xi = NULL;
             return Success;
@@ -164,6 +166,8 @@ EventToXI2(InternalEvent *ev, xEvent **xi)
             return Success;
         case ET_DeviceChanged:
             return eventToClassesChanged((DeviceChangedEvent*)ev, xi);
+        case ET_Raw:
+            return eventToRawEvent((RawDeviceEvent*)ev, xi);
 
     }
 
@@ -412,6 +416,50 @@ eventToDeviceEvent(DeviceEvent *ev, xEvent **xi)
     return Success;
 }
 
+static int
+eventToRawEvent(RawDeviceEvent *ev, xEvent **xi)
+{
+    xXIRawDeviceEvent* raw;
+    int vallen, nvals;
+    int i, len = sizeof(xXIRawDeviceEvent);
+    char *ptr;
+    FP3232 *axisval;
+
+    nvals = count_bits(ev->valuators.mask, sizeof(ev->valuators.mask)/sizeof(ev->valuators.mask[0]));
+    len += nvals * (2 * sizeof(uint32_t)) * 2; /* 8 byte per valuator, once
+                                                   raw, once processed */
+    vallen = (((MAX_VALUATORS + 7)/8) + 3)/4;
+    len += vallen * 4; /* valuators mask */
+
+    *xi = xcalloc(1, len);
+    raw = (xXIRawDeviceEvent*)*xi;
+    raw->type           = GenericEvent;
+    raw->extension      = IReqCode;
+    raw->evtype         = GetXI2Type((InternalEvent*)ev);
+    raw->time           = ev->time;
+    raw->length         = (len - sizeof(xEvent) + 3)/4;
+    raw->eventtype      = ev->subtype;
+    raw->detail         = ev->detail.button;
+    raw->deviceid       = ev->deviceid;
+    raw->valuators_len  = vallen;
+
+    ptr = (char*)&raw[1];
+    axisval = (FP3232*)(ptr + raw->valuators_len * 4);
+    for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++)
+    {
+        if (BitIsOn(ev->valuators.mask, i))
+        {
+            SetBit(ptr, i);
+            axisval->integral = ev->valuators.data[i];
+            (axisval + nvals)->integral = ev->valuators.data_raw[i];
+            axisval++;
+            /* FIXME: frac part */
+        }
+    }
+
+    return Success;
+}
+
 /**
  * Return the corresponding core type for the given event or 0 if no core
  * equivalent exists.
@@ -472,6 +520,7 @@ GetXI2Type(InternalEvent *event)
         case ET_Leave:          xi2type = XI_Leave;            break;
         case ET_Hierarchy:      xi2type = XI_HierarchyChanged; break;
         case ET_DeviceChanged:  xi2type = XI_DeviceChanged;    break;
+        case ET_Raw:            xi2type = XI_RawEvent;         break;
         default:
             break;
     }

dix/events.c

@@ -420,7 +420,7 @@ static Mask filters[MAXDEVICES][128] = {
  *
  * @see GetEventMask
  */
-static Mask
+Mask
 GetEventFilter(DeviceIntPtr dev, xEvent *event)
 {
     if (event->u.u.type != GenericEvent)
@@ -2215,6 +2215,10 @@ FixUpEventFromWindow(
     if (XI2_EVENT(xE))
     {
         xXIDeviceEvent* event = (xXIDeviceEvent*)xE;
+
+        if (event->evtype == XI_RawEvent)
+            return;
+
         event->root = RootWindow(pDev)->drawable.id;
         event->event = pWin->drawable.id;
         if (pSprite->hot.pScreen == pWin->drawable.pScreen)

dix/getevents.c

@@ -136,6 +136,33 @@ init_event(DeviceIntPtr dev, DeviceEvent* event, Time ms)
     event->sourceid = dev->id;
 }
 
+static void
+init_raw(DeviceIntPtr dev, RawDeviceEvent *event, Time ms, int subtype,
+         int detail)
+{
+    memset(event, 0, sizeof(RawDeviceEvent));
+    event->header = ET_Internal;
+    event->length = sizeof(RawDeviceEvent);
+    event->type = ET_Raw;
+    event->subtype = subtype;
+    event->time = ms;
+    event->deviceid = dev->id;
+    event->sourceid = dev->id;
+    event->detail.button = detail;
+}
+
+static void
+set_raw_valuators(RawDeviceEvent *event, int first, int num, int *valuators, int32_t* data)
+{
+    int i;
+    for (i = first; i < first + num; i++)
+    {
+        SetBit(event->valuators.mask, i);
+        data[i] = valuators[i - first];
+    }
+}
+
+
 static void
 set_valuators(DeviceIntPtr dev, DeviceEvent* event, int first_valuator,
               int num_valuators, int *valuators)
@@ -802,6 +829,7 @@ GetKeyboardValuatorEvents(EventList *events, DeviceIntPtr pDev, int type,
     int num_events = 0;
     CARD32 ms = 0;
     DeviceEvent *event;
+    RawDeviceEvent *raw;
 
     if (!events ||!pDev->key || !pDev->focus || !pDev->kbdfeed ||
        (type != KeyPress && type != KeyRelease) ||
@@ -822,10 +850,21 @@ GetKeyboardValuatorEvents(EventList *events, DeviceIntPtr pDev, int type,
             return 0;
     }
 
+    ms = GetTimeInMillis();
+
+    raw = (RawDeviceEvent*)events->event;
+    events++;
+    num_events++;
+
+    init_raw(pDev, raw, ms, type, key_code);
+    set_raw_valuators(raw, first_valuator, num_valuators, valuators,
+                      raw->valuators.data_raw);
+
     if (num_valuators)
         clipValuators(pDev, first_valuator, num_valuators, valuators);
 
-    ms = GetTimeInMillis();
+    set_raw_valuators(raw, first_valuator, num_valuators, valuators,
+                      raw->valuators.data);
 
     event = (DeviceEvent*) events->event;
     init_event(pDev, event, ms);
@@ -949,6 +988,7 @@ GetPointerEvents(EventList *events, DeviceIntPtr pDev, int type, int buttons,
     int num_events = 1;
     CARD32 ms;
     DeviceEvent *event;
+    RawDeviceEvent    *raw;
     int x, y, /* switches between device and screen coords */
         cx, cy; /* only screen coordinates */
     ScreenPtr scr = miPointerGetScreen(pDev);
@@ -965,6 +1005,14 @@ GetPointerEvents(EventList *events, DeviceIntPtr pDev, int type, int buttons,
 
     events = updateFromMaster(events, pDev, &num_events);
 
+    raw = (RawDeviceEvent*)events->event;
+    events++;
+    num_events++;
+
+    init_raw(pDev, raw, ms, type, buttons);
+    set_raw_valuators(raw, first_valuator, num_valuators, valuators,
+                      raw->valuators.data_raw);
+
     if (flags & POINTER_ABSOLUTE)
     {
         if (flags & POINTER_SCREEN) /* valuators are in screen coords */
@@ -985,10 +1033,12 @@ GetPointerEvents(EventList *events, DeviceIntPtr pDev, int type, int buttons,
         moveRelative(pDev, &x, &y, first_valuator, num_valuators, valuators);
     }
 
+    set_raw_valuators(raw, first_valuator, num_valuators, valuators,
+                      raw->valuators.data);
+
     positionSprite(pDev, &x, &y, scr, &cx, &cy);
     updateHistory(pDev, first_valuator, num_valuators, ms);
 
-
     /* Update the valuators with the true value sent to the client*/
     if (num_valuators >= 1 && first_valuator == 0)
         valuators[0] = x;
@@ -1023,7 +1073,6 @@ GetPointerEvents(EventList *events, DeviceIntPtr pDev, int type, int buttons,
 
     set_valuators(pDev, event, first_valuator, num_valuators, valuators);
 
-
     return num_events;
 }
 

include/events.h

@@ -59,6 +59,7 @@ enum {
 #if XFreeXDGA
     ET_DGAEvent,
 #endif
+    ET_Raw,
     ET_Internal = 0xFF /* First byte */
 } EventType;
 
@@ -170,6 +171,30 @@ typedef struct
 } DGAEvent;
 #endif
 
+/**
+ * Raw event, contains the data as posted by the device.
+ */
+typedef struct
+{
+    unsigned char header; /**<  Always ET_Internal */
+    int type;             /**<  ET_Raw */
+    int length;           /**<  Length in bytes */
+    Time time;            /**<  Time in ms */
+    int subtype;          /**<  KeyPress, KeyRelease, ButtonPress,
+                                ButtonRelease, MotionNotify */
+    int deviceid;         /**< Device to post this event for */
+    int sourceid;         /**< The physical source device */
+    union {
+        uint32_t button;  /**< Button number */
+        uint32_t key;     /**< Key code */
+    } detail;
+    struct {
+        uint8_t  mask[(MAX_VALUATORS + 7)/8]; /**< Valuator mask */
+        int32_t  data[MAX_VALUATORS];         /**< Valuator data */
+        int32_t  data_raw[MAX_VALUATORS];     /**< Valuator data as posted */
+    } valuators;
+} RawDeviceEvent;
+
 /**
  * Event type used inside the X server for input event
  * processing.
@@ -188,6 +213,7 @@ typedef struct
 #if XFreeXDGA
         DGAEvent dga;
 #endif
+        RawDeviceEvent raw;
     } u;
 } InternalEvent;
 

mi/mieq.c

@@ -277,6 +277,9 @@ ChangeDeviceID(DeviceIntPtr dev, InternalEvent* event)
         case ET_DeviceChanged:
             event->u.device.deviceid = dev->id;
             break;
+        case ET_Raw:
+            event->u.raw.deviceid = dev->id;
+            break;
         default:
             ErrorF("[mi] Unknown event type (%d), cannot change id.\n",
                    event->u.any.type);