xserver/dix/touch.c

95 lines
2.7 KiB
C

/*
* Copyright © 2011 Collabra Ltd.
* Copyright © 2011 Red Hat, Inc.
*
* 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
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Author: Daniel Stone <daniel@fooishbar.org>
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "inputstr.h"
#include "scrnintstr.h"
void
TouchInitDDXTouchPoint(DeviceIntPtr dev, DDXTouchPointInfoPtr ddxtouch)
{
memset(ddxtouch, 0, sizeof(*ddxtouch));
ddxtouch->valuators = valuator_mask_new(dev->valuator->numAxes);
}
Bool
TouchInitTouchPoint(TouchClassPtr t, ValuatorClassPtr v, int index)
{
TouchPointInfoPtr ti;
if (index >= t->num_touches)
return FALSE;
ti = &t->touches[index];
memset(ti, 0, sizeof(*ti));
ti->valuators = valuator_mask_new(v->numAxes);
if (!ti->valuators)
return FALSE;
ti->sprite.spriteTrace = calloc(32, sizeof(*ti->sprite.spriteTrace));
if (!ti->sprite.spriteTrace)
{
valuator_mask_free(&ti->valuators);
return FALSE;
}
ti->sprite.spriteTraceSize = 32;
ti->sprite.spriteTrace[0] = screenInfo.screens[0]->root;
ti->sprite.hot.pScreen = screenInfo.screens[0];
ti->sprite.hotPhys.pScreen = screenInfo.screens[0];
ti->client_id = -1;
return TRUE;
}
void
TouchFreeTouchPoint(DeviceIntPtr device, int index)
{
TouchPointInfoPtr ti;
if (!device->touch || index >= device->touch->num_touches)
return;
ti = &device->touch->touches[index];
valuator_mask_free(&ti->valuators);
free(ti->sprite.spriteTrace);
ti->sprite.spriteTrace = NULL;
free(ti->listeners);
ti->listeners = NULL;
free(ti->history);
ti->history = NULL;
ti->history_size = 0;
ti->history_elements = 0;
}