Imported Debian patch 2:1.15.1-0ubuntu2.6

[deb_xorg-server.git] / dri3 / dri3_event.c

diff --git a/dri3/dri3_event.c b/dri3/dri3_event.c
new file mode 100644 (file)
index 0000000..02f0f65
--- /dev/null
+++ b/dri3/dri3_event.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "dri3_priv.h"
+
+RESTYPE dri3_event_type;
+
+static int
+dri3_free_event(pointer data, XID id)
+{
+    dri3_event_ptr dri3_event = (dri3_event_ptr) data;
+    dri3_window_priv_ptr window_priv = dri3_window_priv(dri3_event->window);
+    dri3_event_ptr *previous, current;
+
+    for (previous = &window_priv->events; (current = *previous); previous = &current->next) {
+        if (current == dri3_event) {
+            *previous = dri3_event->next;
+            break;
+        }
+    }
+    free((pointer) dri3_event);
+    return 1;
+
+}
+
+void
+dri3_free_events(WindowPtr window)
+{
+    dri3_window_priv_ptr window_priv = dri3_window_priv(window);
+    dri3_event_ptr event;
+
+    if (!window_priv)
+        return;
+
+    while ((event = window_priv->events))
+        FreeResource(event->id, RT_NONE);
+}
+
+static void
+dri3_event_swap(xGenericEvent *from, xGenericEvent *to)
+{
+    *to = *from;
+    swaps(&to->sequenceNumber);
+    swapl(&to->length);
+    swaps(&to->evtype);
+    switch (from->evtype) {
+    case DRI3_ConfigureNotify: {
+        xDRI3ConfigureNotify *c = (xDRI3ConfigureNotify *) to;
+
+        swapl(&c->eid);
+        swapl(&c->window);
+        swaps(&c->x);
+        swaps(&c->y);
+        swaps(&c->width);
+        swaps(&c->height);
+        swaps(&c->off_x);
+        swaps(&c->off_y);
+        swaps(&c->pixmap_width);
+        swaps(&c->pixmap_height);
+        swapl(&c->pixmap_flags);
+        break;
+    }
+    }
+}
+
+void
+dri3_send_config_notify(WindowPtr window, int x, int y, int w, int h, int bw, WindowPtr sibling)
+{
+    dri3_window_priv_ptr window_priv = dri3_window_priv(window);
+
+    if (window_priv) {
+        xDRI3ConfigureNotify cn = {
+            .type = GenericEvent,
+            .extension = dri3_request,
+            .length = (sizeof(xDRI3ConfigureNotify) - 32) >> 2,
+            .evtype = DRI3_ConfigureNotify,
+            .eid = 0,
+            .window = window->drawable.id,
+            .x = x,
+            .y = y,
+            .width = w,
+            .height = h,
+            .off_x = 0,
+            .off_y = 0,
+            .pixmap_width = w,
+            .pixmap_height = h,
+            .pixmap_flags = 0
+        };
+        dri3_event_ptr event;
+        dri3_screen_priv_ptr screen_priv = dri3_screen_priv(window->drawable.pScreen);
+
+        if (screen_priv->info && screen_priv->info->driver_config)
+            screen_priv->info->driver_config(window, &cn);
+
+        for (event = window_priv->events; event; event = event->next) {
+            if (event->mask & (1 << DRI3ConfigureNotify)) {
+                cn.eid = event->id;
+                WriteEventsToClient(event->client, 1, (xEvent *) &cn);
+            }
+        }
+    }
+}
+
+int
+dri3_select_input(ClientPtr client, XID eid, WindowPtr window, CARD32 mask)
+{
+    dri3_window_priv_ptr window_priv = dri3_window_priv(window);
+    dri3_event_ptr event;
+
+    if (!window_priv)
+        return BadAlloc;
+
+    event = calloc (1, sizeof (dri3_event_rec));
+    if (!event)
+        return BadAlloc;
+
+    event->client = client;
+    event->window = window;
+    event->id = eid;
+    event->mask = mask;
+
+    event->next = window_priv->events;
+    window_priv->events = event;
+
+    if (!AddResource(event->id, dri3_event_type, (pointer) event))
+        return BadAlloc;
+
+    return Success;
+}
+
+Bool
+dri3_event_init(void)
+{
+    dri3_event_type = CreateNewResourceType(dri3_free_event, "DRI3Event");
+    if (!dri3_event_type)
+        return FALSE;
+
+    GERegisterExtension(dri3_request, dri3_event_swap);
+    return TRUE;
+}