X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd-terminal%2Fgrdev.c;h=0c21eac5512d37f8a98516c48ac9c907b4bd5c90;hb=b7af2c8740e91a73348457fade97609b93e70a8d;hp=aaac06ec3435eddd9c609cdfc6ad1b5a7723ae11;hpb=158c1e3e0c1e9dd8ebf1b93061e1c81805eac339;p=elogind.git

diff --git a/src/libsystemd-terminal/grdev.c b/src/libsystemd-terminal/grdev.c
index aaac06ec3..0c21eac55 100644
--- a/src/libsystemd-terminal/grdev.c
+++ b/src/libsystemd-terminal/grdev.c
@@ -343,7 +343,7 @@ void grdev_display_disable(grdev_display *display) {
         }
 }
 
-const grdev_display_target *grdev_display_next_target(grdev_display *display, const grdev_display_target *prev, uint64_t minage) {
+const grdev_display_target *grdev_display_next_target(grdev_display *display, const grdev_display_target *prev) {
         grdev_display_cache *cache;
         size_t idx;
 
@@ -374,52 +374,38 @@ const grdev_display_target *grdev_display_next_target(grdev_display *display, co
                 if (!pipe->running || !pipe->enabled)
                         continue;
 
-                /* if front-buffer is up-to-date, there's nothing to do */
-                if (minage > 0 && pipe->front && pipe->front->age >= minage)
-                        continue;
-
                 /* find suitable back-buffer */
-                if (!(fb = pipe->back)) {
-                        if (!pipe->vtable->target || !(fb = pipe->vtable->target(pipe)))
+                if (!pipe->back) {
+                        if (!pipe->vtable->target)
+                                continue;
+                        if (!(fb = pipe->vtable->target(pipe)))
                                 continue;
-                }
 
-                /* if back-buffer is up-to-date, schedule flip */
-                if (minage > 0 && fb->age >= minage) {
-                        grdev_display_flip_target(display, target, fb->age);
-                        continue;
+                        assert(fb == pipe->back);
                 }
 
-                /* we have an out-of-date back-buffer; return for redraw */
-                target->fb = fb;
+                target->front = pipe->front;
+                target->back = pipe->back;
+
                 return target;
         }
 
         return NULL;
 }
 
-void grdev_display_flip_target(grdev_display *display, const grdev_display_target *target, uint64_t age) {
+void grdev_display_flip_target(grdev_display *display, const grdev_display_target *target) {
         grdev_display_cache *cache;
-        size_t i;
 
         assert(display);
         assert(!display->modified);
         assert(display->enabled);
         assert(target);
-        assert(target->fb);
 
         cache = container_of(target, grdev_display_cache, target);
 
         assert(cache->pipe);
         assert(cache->pipe->tile->display == display);
 
-        /* reset age of all FB on overflow */
-        if (age < target->fb->age)
-                for (i = 0; i < cache->pipe->max_fbs; ++i)
-                        if (cache->pipe->fbs[i])
-                                cache->pipe->fbs[i]->age = 0;
-
-        ((grdev_fb*)target->fb)->age = age;
         cache->pipe->flip = true;
 }