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surface: fix non-buffer damage handling

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This commit fixes the way the damage that doesn't come directly from the
client is handled.
This commit is contained in:
Kirill Primak 2021-12-04 20:05:32 +03:00 committed by Simon Ser
parent df7d280343
commit 7964bdae76
2 changed files with 44 additions and 76 deletions
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12
include/wlr/types/wlr_surface.h
View file

@ -111,6 +111,11 @@ struct wlr_surface {
* positions need to be damaged.
*/
pixman_region32_t buffer_damage;
/**
* The last commit's damage caused by surface and its subsurfaces'
* movement, in surface-local coordinates.
*/
pixman_region32_t external_damage;
/**
* The current opaque region, in surface-local coordinates. It is clipped to
* the surface bounds. If the surface's buffer is using a fully opaque
@ -273,9 +278,10 @@ void wlr_surface_for_each_surface(struct wlr_surface *surface,
wlr_surface_iterator_func_t iterator, void *user_data);
/**
* Get the effective damage to the surface in terms of surface local
* coordinates. This includes damage induced by resizing and moving the
* surface. The damage is not expected to be bounded by the surface itself.
* Get the effective surface damage in surface-local coordinate space. Besides
* buffer damage, this includes damage induced by resizing and moving the
* surface and its subsurfaces. The resulting damage is not expected to be
* bounded by the surface itself.
*/
void wlr_surface_get_effective_damage(struct wlr_surface *surface,
pixman_region32_t *damage);

108
types/wlr_surface.c
View file

@ -315,29 +315,6 @@ static void surface_state_move(struct wlr_surface_state *state,
next->cached_state_locks = 0;
}
static void surface_damage_subsurfaces(struct wlr_subsurface *subsurface) {
// XXX: This is probably the wrong way to do it, because this damage should
// come from the client, but weston doesn't do it correctly either and it
// seems to work ok. See the comment on weston_surface_damage for more info
// about a better approach.
struct wlr_surface *surface = subsurface->surface;
pixman_region32_union_rect(&surface->buffer_damage,
&surface->buffer_damage, 0, 0,
surface->current.buffer_width, surface->current.buffer_height);
subsurface->reordered = false;
struct wlr_subsurface *child;
wl_list_for_each(child, &subsurface->surface->current.subsurfaces_below,
current.link) {
surface_damage_subsurfaces(child);
}
wl_list_for_each(child, &subsurface->surface->current.subsurfaces_above,
current.link) {
surface_damage_subsurfaces(child);
}
}
static void surface_apply_damage(struct wlr_surface *surface) {
if (surface->current.buffer == NULL) {
// NULL commit
@ -427,6 +404,15 @@ static void surface_commit_state(struct wlr_surface *surface,
surface->sy += next->dy;
surface_update_damage(&surface->buffer_damage, &surface->current, next);
pixman_region32_clear(&surface->external_damage);
if (surface->current.width > next->width ||
surface->current.height > next->height ||
next->dx != 0 || next->dy != 0) {
pixman_region32_union_rect(&surface->external_damage,
&surface->external_damage, -next->dx, -next->dy,
surface->current.width, surface->current.height);
}
surface->previous.scale = surface->current.scale;
surface->previous.transform = surface->current.transform;
surface->previous.width = surface->current.width;
@ -450,10 +436,6 @@ static void surface_commit_state(struct wlr_surface *surface,
wl_list_insert(&surface->current.subsurfaces_above,
&subsurface->current.link);
if (subsurface->reordered) {
// TODO: damage all the subsurfaces
surface_damage_subsurfaces(subsurface);
}
subsurface_parent_commit(subsurface);
}
wl_list_for_each_reverse(subsurface, &surface->pending.subsurfaces_below,
@ -462,10 +444,6 @@ static void surface_commit_state(struct wlr_surface *surface,
wl_list_insert(&surface->current.subsurfaces_below,
&subsurface->current.link);
if (subsurface->reordered) {
// TODO: damage all the subsurfaces
surface_damage_subsurfaces(subsurface);
}
subsurface_parent_commit(subsurface);
}
@ -501,36 +479,37 @@ static bool subsurface_is_synchronized(struct wlr_subsurface *subsurface) {
return false;
}
static void collect_subsurface_damage_iter(struct wlr_surface *surface,
int sx, int sy, void *data) {
struct wlr_subsurface *subsurface = data;
pixman_region32_t *damage = &subsurface->parent->external_damage;
pixman_region32_union_rect(damage, damage,
subsurface->current.x + sx,
subsurface->current.y + sy,
surface->current.width, surface->current.height);
}
static void subsurface_parent_commit(struct wlr_subsurface *subsurface) {
struct wlr_surface *surface = subsurface->surface;
bool moved = subsurface->current.x != subsurface->pending.x ||
subsurface->current.y != subsurface->pending.y;
if (subsurface->mapped && moved) {
wlr_surface_for_each_surface(surface,
collect_subsurface_damage_iter, subsurface);
}
if (subsurface->synchronized && subsurface->has_cache) {
wlr_surface_unlock_cached(surface, subsurface->cached_seq);
subsurface->has_cache = false;
}
if (subsurface->current.x != subsurface->pending.x ||
subsurface->current.y != subsurface->pending.y) {
// Subsurface has moved
int dx = subsurface->current.x - subsurface->pending.x;
int dy = subsurface->current.y - subsurface->pending.y;
subsurface->current.x = subsurface->pending.x;
subsurface->current.y = subsurface->pending.y;
if ((surface->current.transform & WL_OUTPUT_TRANSFORM_90) != 0) {
int tmp = dx;
dx = dy;
dy = tmp;
}
pixman_region32_union_rect(&surface->buffer_damage,
&surface->buffer_damage,
dx * surface->previous.scale, dy * surface->previous.scale,
surface->previous.buffer_width, surface->previous.buffer_height);
pixman_region32_union_rect(&surface->buffer_damage,
&surface->buffer_damage, 0, 0,
surface->current.buffer_width, surface->current.buffer_height);
subsurface->current.x = subsurface->pending.x;
subsurface->current.y = subsurface->pending.y;
if (subsurface->mapped && (moved || subsurface->reordered)) {
subsurface->reordered = false;
wlr_surface_for_each_surface(surface,
collect_subsurface_damage_iter, subsurface);
}
}
@ -720,6 +699,7 @@ static void surface_handle_resource_destroy(struct wl_resource *resource) {
surface_state_finish(&surface->pending);
surface_state_finish(&surface->current);
pixman_region32_fini(&surface->buffer_damage);
pixman_region32_fini(&surface->external_damage);
pixman_region32_fini(&surface->opaque_region);
pixman_region32_fini(&surface->input_region);
if (surface->buffer != NULL) {
@ -766,6 +746,7 @@ struct wlr_surface *surface_create(struct wl_client *client,
wl_list_init(&surface->current_outputs);
wl_list_init(&surface->cached);
pixman_region32_init(&surface->buffer_damage);
pixman_region32_init(&surface->external_damage);
pixman_region32_init(&surface->opaque_region);
pixman_region32_init(&surface->input_region);
wlr_addon_set_init(&surface->addons);
@ -1427,26 +1408,7 @@ void wlr_surface_get_effective_damage(struct wlr_surface *surface,
wlr_region_scale_xy(damage, damage, scale_x, scale_y);
}
// On resize, damage the previous bounds of the surface. The current bounds
// have already been damaged in surface_update_damage.
if (surface->previous.width > surface->current.width ||
surface->previous.height > surface->current.height) {
pixman_region32_union_rect(damage, damage, 0, 0,
surface->previous.width, surface->previous.height);
}
// On move, damage where the surface was with its old dimensions.
if (surface->current.dx != 0 || surface->current.dy != 0) {
int prev_x = -surface->current.dx;
int prev_y = -surface->current.dy;
if ((surface->previous.transform & WL_OUTPUT_TRANSFORM_90) != 0) {
int temp = prev_x;
prev_x = prev_y;
prev_y = temp;
}
pixman_region32_union_rect(damage, damage, prev_x, prev_y,
surface->previous.width, surface->previous.height);
}
pixman_region32_union(damage, damage, &surface->external_damage);
}
void wlr_surface_get_buffer_source_box(struct wlr_surface *surface,