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-rw-r--r--compton.c19
-rw-r--r--compton.h20
2 files changed, 38 insertions, 1 deletions
diff --git a/compton.c b/compton.c
index b98e6a60f..235ef6ed5 100644
--- a/compton.c
+++ b/compton.c
@@ -69,6 +69,8 @@ Picture root_tile;
XserverRegion all_damage;
Bool has_name_pixmap;
int root_height, root_width;
+/// A region of the size of the screen.
+XserverRegion screen_reg = None;
/// Pregenerated alpha pictures.
Picture *alpha_picts = NULL;
@@ -1638,6 +1640,16 @@ win_paint_win(Display *dpy, win *w, Picture tgt_buffer) {
}
}
+/**
+ * Rebuild cached <code>screen_reg</code>.
+ */
+static void
+rebuild_screen_reg(Display *dpy) {
+ if (screen_reg)
+ XFixesDestroyRegion(dpy, screen_reg);
+ screen_reg = get_screen_region(dpy);
+}
+
static void
paint_all(Display *dpy, XserverRegion region, win *t) {
#ifdef DEBUG_REPAINT
@@ -1652,7 +1664,7 @@ paint_all(Display *dpy, XserverRegion region, win *t) {
}
else {
// Remove the damaged area out of screen
- XFixesIntersectRegion(dpy, region, region, get_screen_region(dpy));
+ XFixesIntersectRegion(dpy, region, region, screen_reg);
}
#ifdef MONITOR_REPAINT
@@ -2483,6 +2495,8 @@ configure_win(Display *dpy, XConfigureEvent *ce) {
root_width = ce->width;
root_height = ce->height;
+ rebuild_screen_reg(dpy);
+
return;
}
@@ -2995,6 +3009,7 @@ ev_focus_out(XFocusChangeEvent *ev) {
inline static void
ev_create_notify(XCreateWindowEvent *ev) {
+ assert(ev->parent == root);
add_win(dpy, ev->window, 0, ev->override_redirect);
}
@@ -4520,6 +4535,8 @@ main(int argc, char **argv) {
root_width = DisplayWidth(dpy, scr);
root_height = DisplayHeight(dpy, scr);
+ rebuild_screen_reg(dpy);
+
root_picture = XRenderCreatePicture(dpy, root,
XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)),
CPSubwindowMode, &pa);
diff --git a/compton.h b/compton.h
index d78e64fe1..3bed918a4 100644
--- a/compton.h
+++ b/compton.h
@@ -89,6 +89,26 @@
#include <GL/glx.h>
#endif
+#ifdef DEBUG_ALLOC_REG
+static inline XserverRegion
+XFixesCreateRegion_(Display *dpy, XRectangle *p, int n,
+ const char *func, int line) {
+ XserverRegion reg = XFixesCreateRegion(dpy, p, n);
+ printf("%#010lx: XFixesCreateRegion() in %s():%d\n", reg, func, line);
+ return reg;
+}
+
+static inline void
+XFixesDestroyRegion_(Display *dpy, XserverRegion reg,
+ const char *func, int line) {
+ XFixesDestroyRegion(dpy, reg);
+ printf("%#010lx: XFixesDestroyRegion() in %s():%d\n", reg, func, line);
+}
+
+#define XFixesCreateRegion(dpy, p, n) XFixesCreateRegion_(dpy, p, n, __func__, __LINE__)
+#define XFixesDestroyRegion(dpy, reg) XFixesDestroyRegion_(dpy, reg, __func__, __LINE__)
+#endif
+
// === Constants ===
#if !(COMPOSITE_MAJOR > 0 || COMPOSITE_MINOR >= 2)
#error libXcomposite version unsupported