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console: clip update rectangle 

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Gerd Hoffmann 2012-12-14 08:54:25 +01:00 committed by Blue Swirl
parent bc210eb163
commit 4b4496dbcc
1 changed files with 10 additions and 0 deletions
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10
console.h
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@ -229,6 +229,16 @@ static inline void unregister_displaychangelistener(DisplayState *ds,
static inline void dpy_gfx_update(DisplayState *s, int x, int y, int w, int h)
{
struct DisplayChangeListener *dcl;
int width = pixman_image_get_width(s->surface->image);
int height = pixman_image_get_height(s->surface->image);
x = MAX(x, 0);
y = MAX(y, 0);
x = MIN(x, width);
y = MIN(y, height);
w = MIN(w, width - x);
h = MIN(h, height - y);
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->dpy_gfx_update) {
dcl->dpy_gfx_update(s, x, y, w, h);