diff options
| -rw-r--r-- | recordmydesktop/src/rmd_poll_events.c | 43 |
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); + } } } } |