Patchwork [5/5] console: clip update rectangle

login
register
mail settings
Submitter Gerd Hoffmann
Date Dec. 14, 2012, 7:54 a.m.
Message ID <1355471665-23903-6-git-send-email-kraxel@redhat.com>
Download mbox | patch
Permalink /patch/206367/
State New
Headers show

Comments

Gerd Hoffmann - Dec. 14, 2012, 7:54 a.m.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 console.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

Patch

diff --git a/console.h b/console.h
index 50a0512..edb1950 100644
--- a/console.h
+++ b/console.h
@@ -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);