diff options
Diffstat (limited to 'xorg-server/hw/dmx/input/dmxmotion.c')
| -rw-r--r-- | xorg-server/hw/dmx/input/dmxmotion.c | 284 |
1 files changed, 142 insertions, 142 deletions
diff --git a/xorg-server/hw/dmx/input/dmxmotion.c b/xorg-server/hw/dmx/input/dmxmotion.c index 73580a215..d1c79f126 100644 --- a/xorg-server/hw/dmx/input/dmxmotion.c +++ b/xorg-server/hw/dmx/input/dmxmotion.c @@ -1,142 +1,142 @@ -/* - * 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 = xalloc(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) */ - if (pDevice->valuator->mode == Absolute) { - for (i = 0; i < numAxes; i++) - dmxLocal->history[OFFSET(dmxLocal->tail,i+1)] - = dmxLocal->valuators[i]; - } else { - for (i = 0; i < numAxes; i++) - 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) */
+ if (pDevice->valuator->mode == Absolute) {
+ for (i = 0; i < numAxes; i++)
+ dmxLocal->history[OFFSET(dmxLocal->tail,i+1)]
+ = dmxLocal->valuators[i];
+ } else {
+ for (i = 0; i < numAxes; i++)
+ 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];
+ }
+}
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