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-rw-r--r--dix/touch.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/dix/touch.c b/dix/touch.c
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+/*
+ * 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;
+}
+
+