1 files changed, 149 insertions, 141 deletions
diff --git a/xorg-server/hw/dmx/input/dmxmotion.c b/xorg-server/hw/dmx/input/dmxmotion.c
index 7a4b8a0dc..1642894a2 100644
--- a/xorg-server/hw/dmx/input/dmxmotion.c
+++ b/xorg-server/hw/dmx/input/dmxmotion.c
@@ -1,141 +1,149 @@
-/*
- * 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
- * This file provides functions similar to miPointerGetMotionEvents and
- * miPointerPutMotionEvents, with the exception that devices with more
- * than two axes are fully supported.  These routines may be used only
- * for motion buffers for extension devices, and are \a not compatible
- * replacements for the mi routines.  */
-
-#ifdef HAVE_DMX_CONFIG_H
-#include <dmx-config.h>
-#endif
-
-#include "inputstr.h"
-#include "dmxinputinit.h"
-#include "dmxcommon.h"
-#include "dmxmotion.h"
-
-#define OFFSET(offset,element) ((offset) * (numAxes + 1) + (element))
-
-/** Return size of motion buffer. \see DMX_MOTION_SIZE */
-int dmxPointerGetMotionBufferSize(void)
-{
-    return DMX_MOTION_SIZE;
-}
-
-/** This routine performs the same function as \a miPointerGetMotionEvents:
- * the events in the motion history that are between the start and stop
- * times (in mS) are placed in the coords vector, and the count of the
- * number of items so placed is returned.  This routine is called from
- * dix/devices.c so that coords can hold valuator->numMotionEvents
- * events.  This routine is called from \a Xi/gtmotion.c with coords large
- * enough to hold the same number of events in a variable-length
- * extended \a xTimecoord structure.  This provides sufficient data for the
- * \a XGetDeviceMotionEvents library call, and would be identical to
- * \a miPointerGetMotionEvents for devices with only 2 axes (i.e., core
- * pointers) if \a xTimecoord used 32bit integers.
- *
- * Because DMX uses the mi* routines for all core devices, this routine
- * only has to support extension devices using the polymorphic coords.
- * Because compatibility with miPointerGetMotionEvents is not possible,
- * it is not provided. */
-int dmxPointerGetMotionEvents(DeviceIntPtr pDevice,
-                              xTimecoord *coords,
-                              unsigned long start,
-                              unsigned long stop,
-                              ScreenPtr pScreen)
-{
-    GETDMXLOCALFROMPDEVICE;
-    int           numAxes = pDevice->valuator->numAxes;
-    unsigned long *c      = (unsigned long *)coords;
-    int           count   = 0;
-    int           i, j;
-
-    if (!dmxLocal->history) return 0;
-    for (i = dmxLocal->head; i != dmxLocal->tail;) {
-        if (dmxLocal->history[OFFSET(i,0)] >= stop) break;
-        if (dmxLocal->history[OFFSET(i,0)] >= start) {
-            for (j = 0; j < numAxes + 1; j++)
-                c[OFFSET(count,j)] = dmxLocal->history[OFFSET(i,j)];
-            ++count;
-        }
-        if (++i >= DMX_MOTION_SIZE) i = 0;
-    }
-    return count;
-}
-
-/** This routine adds an event to the motion history.  A similar
- * function is performed by miPointerMove for the mi versions of these
- * routines. */
-void dmxPointerPutMotionEvent(DeviceIntPtr pDevice,
-                              int firstAxis, int axesCount, int *v,
-                              unsigned long time)
-{
-    GETDMXLOCALFROMPDEVICE;
-    int           numAxes = pDevice->valuator->numAxes;
-    int           i;
-
-    if (!dmxLocal->history) {
-        dmxLocal->history   = malloc(sizeof(*dmxLocal->history)
-                                     * (numAxes + 1)
-                                     * DMX_MOTION_SIZE);
-        dmxLocal->head      = 0;
-        dmxLocal->tail      = 0;
-        dmxLocal->valuators = calloc(sizeof(*dmxLocal->valuators), numAxes);
-    } else {
-        if (++dmxLocal->tail >= DMX_MOTION_SIZE) dmxLocal->tail = 0;
-        if (dmxLocal->head == dmxLocal->tail)
-            if (++dmxLocal->head >= DMX_MOTION_SIZE) dmxLocal->head = 0;
-    }
-
-    dmxLocal->history[OFFSET(dmxLocal->tail,0)] = time;
-
-                                /* Initialize the data from the known
-                                 * values (if Absolute) or to zero (if
-                                 * Relative) */
-    for (i = 0; i < numAxes; i++) {
-        if (pDevice->valuator->axes[i].mode == Absolute)
-            dmxLocal->history[OFFSET(dmxLocal->tail,i+1)]
-                = dmxLocal->valuators[i];
-        else
-            dmxLocal->history[OFFSET(dmxLocal->tail,i+1)] = 0;
-    }
-    
-    for (i = firstAxis; i < axesCount; i++) {
-        dmxLocal->history[OFFSET(dmxLocal->tail,i+i)]
-            = (unsigned long)v[i-firstAxis];
-        dmxLocal->valuators[i] = v[i-firstAxis];
-    }
-}
+/*
+ * 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
+ * This file provides functions similar to miPointerGetMotionEvents and
+ * miPointerPutMotionEvents, with the exception that devices with more
+ * than two axes are fully supported.  These routines may be used only
+ * for motion buffers for extension devices, and are \a not compatible
+ * replacements for the mi routines.  */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "inputstr.h"
+#include "dmxinputinit.h"
+#include "dmxcommon.h"
+#include "dmxmotion.h"
+
+#define OFFSET(offset,element) ((offset) * (numAxes + 1) + (element))
+
+/** Return size of motion buffer. \see DMX_MOTION_SIZE */
+int
+dmxPointerGetMotionBufferSize(void)
+{
+    return DMX_MOTION_SIZE;
+}
+
+/** This routine performs the same function as \a miPointerGetMotionEvents:
+ * the events in the motion history that are between the start and stop
+ * times (in mS) are placed in the coords vector, and the count of the
+ * number of items so placed is returned.  This routine is called from
+ * dix/devices.c so that coords can hold valuator->numMotionEvents
+ * events.  This routine is called from \a Xi/gtmotion.c with coords large
+ * enough to hold the same number of events in a variable-length
+ * extended \a xTimecoord structure.  This provides sufficient data for the
+ * \a XGetDeviceMotionEvents library call, and would be identical to
+ * \a miPointerGetMotionEvents for devices with only 2 axes (i.e., core
+ * pointers) if \a xTimecoord used 32bit integers.
+ *
+ * Because DMX uses the mi* routines for all core devices, this routine
+ * only has to support extension devices using the polymorphic coords.
+ * Because compatibility with miPointerGetMotionEvents is not possible,
+ * it is not provided. */
+int
+dmxPointerGetMotionEvents(DeviceIntPtr pDevice,
+                          xTimecoord * coords,
+                          unsigned long start,
+                          unsigned long stop, ScreenPtr pScreen)
+{
+    GETDMXLOCALFROMPDEVICE;
+    int numAxes = pDevice->valuator->numAxes;
+    unsigned long *c = (unsigned long *) coords;
+    int count = 0;
+    int i, j;
+
+    if (!dmxLocal->history)
+        return 0;
+    for (i = dmxLocal->head; i != dmxLocal->tail;) {
+        if (dmxLocal->history[OFFSET(i, 0)] >= stop)
+            break;
+        if (dmxLocal->history[OFFSET(i, 0)] >= start) {
+            for (j = 0; j < numAxes + 1; j++)
+                c[OFFSET(count, j)] = dmxLocal->history[OFFSET(i, j)];
+            ++count;
+        }
+        if (++i >= DMX_MOTION_SIZE)
+            i = 0;
+    }
+    return count;
+}
+
+/** This routine adds an event to the motion history.  A similar
+ * function is performed by miPointerMove for the mi versions of these
+ * routines. */
+void
+dmxPointerPutMotionEvent(DeviceIntPtr pDevice,
+                         int firstAxis, int axesCount, int *v,
+                         unsigned long time)
+{
+    GETDMXLOCALFROMPDEVICE;
+    int numAxes = pDevice->valuator->numAxes;
+    int i;
+
+    if (!dmxLocal->history) {
+        dmxLocal->history = malloc(sizeof(*dmxLocal->history)
+                                   * (numAxes + 1)
+                                   * DMX_MOTION_SIZE);
+        dmxLocal->head = 0;
+        dmxLocal->tail = 0;
+        dmxLocal->valuators = calloc(sizeof(*dmxLocal->valuators), numAxes);
+    }
+    else {
+        if (++dmxLocal->tail >= DMX_MOTION_SIZE)
+            dmxLocal->tail = 0;
+        if (dmxLocal->head == dmxLocal->tail)
+            if (++dmxLocal->head >= DMX_MOTION_SIZE)
+                dmxLocal->head = 0;
+    }
+
+    dmxLocal->history[OFFSET(dmxLocal->tail, 0)] = time;
+
+    /* Initialize the data from the known
+     * values (if Absolute) or to zero (if
+     * Relative) */
+    for (i = 0; i < numAxes; i++) {
+        if (pDevice->valuator->axes[i].mode == Absolute)
+            dmxLocal->history[OFFSET(dmxLocal->tail, i + 1)]
+                = dmxLocal->valuators[i];
+        else
+            dmxLocal->history[OFFSET(dmxLocal->tail, i + 1)] = 0;
+    }
+
+    for (i = firstAxis; i < axesCount; i++) {
+        dmxLocal->history[OFFSET(dmxLocal->tail, i + i)]
+            = (unsigned long) v[i - firstAxis];
+        dmxLocal->valuators[i] = v[i - firstAxis];
+    }
+}