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-rw-r--r--recordmydesktop/src/rmd_poll_events.c43
1 files changed, 41 insertions, 2 deletions
diff --git a/recordmydesktop/src/rmd_poll_events.c b/recordmydesktop/src/rmd_poll_events.c
index 349aeba..96730fd 100644
--- a/recordmydesktop/src/rmd_poll_events.c
+++ b/recordmydesktop/src/rmd_poll_events.c
@@ -97,6 +97,43 @@ static int clip_event_area(XDamageNotifyEvent *e, XRectangle *cliprect, XRectang
}
+/* Try align xrect to even boundaries relative to cliprect,
+ * this is done for the UV routines which operate at 2x2 rgb pixel granularity.
+ */
+static void uv_align(XRectangle *cliprect, XRectangle *xrect) {
+ XRectangle rel;
+
+ rel.x = xrect->x - cliprect->x;
+ rel.y = xrect->y - cliprect->y;
+
+ if (rel.x % 2) {
+ rel.x -= 1;
+ rel.width = xrect->width + 1;
+ } else {
+ rel.width = xrect->width;
+ }
+
+ if (rel.y % 2) {
+ rel.y -= 1;
+ rel.height = xrect->height + 1;
+ } else {
+ rel.height = xrect->height;
+ }
+
+ /* XXX: note when cliprect prevents an even width, we can't do anything
+ * about it. rmd could force even-sized recording windows to prevent
+ * this, but that would be kind of annoying. For now it's assumed
+ * the UV routines will handle the exception - which might temporarily
+ * mean they just lop the odd row/column off the edge.
+ */
+ if (rel.width % 2 && rel.width + rel.x < cliprect->x + cliprect->width)
+ rel.width++;
+
+ if (rel.height % 2 && rel.height + rel.y < cliprect->y + cliprect->height)
+ rel.height++;
+}
+
+
void rmdInitEventsPolling(ProgData *pdata) {
Window root_return,
parent_return,
@@ -198,8 +235,10 @@ void rmdEventLoop(ProgData *pdata) {
XDamageNotifyEvent *e = (XDamageNotifyEvent *)&event;
XRectangle xrect;
- if (clip_event_area(e, &pdata->brwin.rrect, &xrect))
- inserts += rmdRectInsert(&pdata->rect_root,&xrect);
+ if (clip_event_area(e, &pdata->brwin.rrect, &xrect)) {
+ uv_align(&pdata->brwin.rrect, &xrect);
+ inserts += rmdRectInsert(&pdata->rect_root, &xrect);
+ }
}
}
}
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