mirrors/foot
1
0
Fork 0
mirror of https://codeberg.org/dnkl/foot.git synced 2026-02-05 04:06:08 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

render: more fine-grained wayland surface damage tracking

Browse source 
Before this patch. Wayland surface damage tracking was done on a
per-row basis. That is, even if just one cell was updated, the entire
row was "damaged".

Now, damage is per cell. This hopefully results in lower latencies in
many use cases, and especially on high DPI monitors.
This commit is contained in:
Daniel Eklöf 2023-10-07 16:23:09 +02:00
parent 1c9d98d57e
commit c50b1f9900
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
4 changed files with 75 additions and 50 deletions
Download patch file Download diff file Expand all files Collapse all files

14
shm.c
View file

@ -157,7 +157,9 @@ buffer_destroy(struct buffer_private *buf)
pool_unref(buf->pool);
buf->pool = NULL;
pixman_region32_fini(&buf->public.dirty);
for (size_t i = 0; i < buf->public.pix_instances; i++)
pixman_region32_fini(&buf->public.dirty[i]);
free(buf->public.dirty);
free(buf);
}
@ -476,7 +478,12 @@ get_new_buffers(struct buffer_chain *chain, size_t count,
else
tll_push_front(chain->bufs, buf);
pixman_region32_init(&buf->public.dirty);
buf->public.dirty = malloc(
chain->pix_instances * sizeof(buf->public.dirty[0]));
for (size_t j = 0; j < chain->pix_instances; j++)
pixman_region32_init(&buf->public.dirty[j]);
pool->ref_count++;
offset += buf->size;
bufs[i] = &buf->public;
@ -585,7 +592,8 @@ shm_get_buffer(struct buffer_chain *chain, int width, int height)
if (cached != NULL) {
LOG_DBG("re-using buffer %p from cache", (void *)cached);
cached->busy = true;
pixman_region32_clear(&cached->public.dirty);
for (size_t i = 0; i < cached->public.pix_instances; i++)
pixman_region32_clear(&cached->public.dirty[i]);
xassert(cached->public.pix_instances == chain->pix_instances);
return &cached->public;
}