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wlr_scene: Fix not updating the scene node when setting a new buffer

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If a new buffer is set for a buffer node, we must update the entire
node unconditionally if the buffer size changes, or the buffer is given
a buffer where it was previously NULL.

While we're here, let's avoid calling scene_node_update on just damage
updates. If the caller hasn't given us a damage region we just assume
the whole buffer.
This commit is contained in:
Alexander Orzechowski 2022-10-07 11:31:07 -04:00 committed by Kirill Primak
parent dd9cfd3e2f
commit f0e31e806f
1 changed files with 31 additions and 15 deletions
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46
types/scene/wlr_scene.c
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@ -552,23 +552,32 @@ void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buff
// coordinates. // coordinates.
assert(buffer || !damage); assert(buffer || !damage);
if (buffer != scene_buffer->buffer) { if (buffer == scene_buffer->buffer) {
wlr_texture_destroy(scene_buffer->texture); return;
scene_buffer->texture = NULL;
wlr_buffer_unlock(scene_buffer->buffer);
if (buffer) {
scene_buffer->buffer = wlr_buffer_lock(buffer);
} else {
scene_buffer->buffer = NULL;
}
if (!damage) {
scene_node_update(&scene_buffer->node, NULL);
}
} }
if (!damage) { bool update = false;
wlr_buffer_unlock(scene_buffer->buffer);
if (buffer) {
// if this node used to not be mapped or its previous displayed
// buffer region will be different from what the new buffer would
// produce we need to update the node.
update = !scene_buffer->buffer ||
(scene_buffer->dst_width == 0 && scene_buffer->dst_height == 0 &&
(scene_buffer->buffer->width != buffer->width ||
scene_buffer->buffer->height != buffer->height));
scene_buffer->buffer = wlr_buffer_lock(buffer);
} else {
update = true;
scene_buffer->buffer = NULL;
}
if (update) {
scene_node_update(&scene_buffer->node, NULL);
// updating the node will already damage the whole node for us. Return
// early to not damage again
return; return;
} }
@ -577,6 +586,12 @@ void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buff
return; return;
} }
pixman_region32_t fallback_damage;
pixman_region32_init_rect(&fallback_damage, 0, 0, buffer->width, buffer->height);
if (!damage) {
damage = &fallback_damage;
}
struct wlr_fbox box = scene_buffer->src_box; struct wlr_fbox box = scene_buffer->src_box;
if (wlr_fbox_empty(&box)) { if (wlr_fbox_empty(&box)) {
box.x = 0; box.x = 0;
@ -633,6 +648,7 @@ void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buff
} }
pixman_region32_fini(&trans_damage); pixman_region32_fini(&trans_damage);
pixman_region32_fini(&fallback_damage);
} }
void wlr_scene_buffer_set_buffer(struct wlr_scene_buffer *scene_buffer, void wlr_scene_buffer_set_buffer(struct wlr_scene_buffer *scene_buffer,