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scene: set output damage during direct scan-out

Browse source 
This allows the backend to have access to the frame damage, as
reported by the scanned-out client. Some KMS drivers can make use
of it (e.g. for PSR, or optimized USB transfers in the GUD driver),
and the Wayland/X11 backends forward it to the parent compositor.
This commit is contained in:
Simon Ser 2022-11-26 10:06:56 +01:00
parent ce089498cc
commit 35a0d9c85d
1 changed files with 27 additions and 11 deletions
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38
types/scene/wlr_scene.c
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@ -1378,6 +1378,21 @@ static bool construct_render_list_iterator(struct wlr_scene_node *node,
return false;
}
static void get_frame_damage(struct wlr_scene_output *scene_output, pixman_region32_t *frame_damage) {
struct wlr_output *output = scene_output->output;
int tr_width, tr_height;
wlr_output_transformed_resolution(output, &tr_width, &tr_height);
enum wl_output_transform transform =
wlr_output_transform_invert(output->transform);
pixman_region32_init(frame_damage);
wlr_region_transform(frame_damage,
&scene_output->damage_ring.current,
transform, tr_width, tr_height);
}
static bool scene_node_try_direct_scanout(struct wlr_scene_node *node,
struct wlr_scene_output *scene_output, struct wlr_box *box) {
if (!scene_output->scene->direct_scanout) {
@ -1433,7 +1448,17 @@ static bool scene_node_try_direct_scanout(struct wlr_scene_node *node,
return false;
}
return wlr_output_commit_state(output, &state);
state.committed |= WLR_OUTPUT_STATE_DAMAGE;
get_frame_damage(scene_output, &state.damage);
bool ok = wlr_output_commit_state(output, &state);
pixman_region32_fini(&state.damage);
if (!ok) {
return false;
}
wlr_damage_ring_rotate(&scene_output->damage_ring);
return true;
}
bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
@ -1634,17 +1659,8 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
wlr_renderer_end(renderer);
pixman_region32_fini(&damage);
int tr_width, tr_height;
wlr_output_transformed_resolution(output, &tr_width, &tr_height);
enum wl_output_transform transform =
wlr_output_transform_invert(output->transform);
pixman_region32_t frame_damage;
pixman_region32_init(&frame_damage);
wlr_region_transform(&frame_damage,
&scene_output->damage_ring.current,
transform, tr_width, tr_height);
get_frame_damage(scene_output, &frame_damage);
wlr_output_set_damage(output, &frame_damage);
pixman_region32_fini(&frame_damage);