output-damage: support direct scan-out
In case direct scan-out is used, we still need to accumulate damage for the
render-buffers.
@@ -59,12 +59,25 @@ static void output_handle_commit(struct wl_listener *listener, void *data) {
return;
}
+ pixman_region32_t *prev;
+ switch (output_damage->output->pending.buffer_type) {
+ case WLR_OUTPUT_STATE_BUFFER_RENDER:
+ // render-buffers have been swapped, rotate the damage
+
// same as decrementing, but works on unsigned integers
output_damage->previous_idx += WLR_OUTPUT_DAMAGE_PREVIOUS_LEN - 1;
output_damage->previous_idx %= WLR_OUTPUT_DAMAGE_PREVIOUS_LEN;
- pixman_region32_copy(&output_damage->previous[output_damage->previous_idx],
- &output_damage->current);
+ prev = &output_damage->previous[output_damage->previous_idx];
+ pixman_region32_copy(prev, &output_damage->current);
+ break;
+ case WLR_OUTPUT_STATE_BUFFER_SCANOUT:
+ // accumulate render-buffer damage
+ prev = &output_damage->previous[output_damage->previous_idx];
+ pixman_region32_union(prev, prev, &output_damage->current);
+ break;
+ }
+
pixman_region32_clear(&output_damage->current);
}
