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scene: add support for output layers

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This commit is contained in:
Simon Ser 2020-05-06 18:29:17 +02:00
parent 7e9ad9a67b
commit 606d6f990e
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GPG key ID: 0FDE7BE0E88F5E48
2 changed files with 134 additions and 19 deletions
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2
include/wlr/types/wlr_scene.h
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@ -56,6 +56,8 @@ struct wlr_scene_surface {
struct wlr_scene_node node;
struct wlr_surface *surface;
struct wl_list surface_outputs; // wlr_scene_surface_output.link
struct wl_listener surface_destroy;
};

151
types/wlr_scene.c
View file

@ -3,10 +3,19 @@
#include <wlr/backend.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_output_layer.h>
#include <wlr/types/wlr_scene.h>
#include <wlr/types/wlr_surface.h>
#include "util/signal.h"
struct wlr_scene_surface_output {
struct wlr_output *output;
struct wl_list link; // wlr_scene_surface.surface_outputs
struct wlr_output_layer *layer;
struct wl_listener output_destroy;
};
static struct wlr_scene *scene_node_get_root(struct wlr_scene_node *node) {
assert(node->type == WLR_SCENE_NODE_ROOT);
return (struct wlr_scene *)node;
@ -61,6 +70,8 @@ static void scene_node_finish(struct wlr_scene_node *node) {
scene_node_state_finish(&node->pending);
}
static void surface_output_destroy(struct wlr_scene_surface_output *so);
void wlr_scene_node_destroy(struct wlr_scene_node *node) {
if (node == NULL) {
return;
@ -77,6 +88,10 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
break;
case WLR_SCENE_NODE_SURFACE:;
struct wlr_scene_surface *scene_surface = scene_node_get_surface(node);
struct wlr_scene_surface_output *so, *so_tmp;
wl_list_for_each_safe(so, so_tmp, &scene_surface->surface_outputs, link) {
surface_output_destroy(so);
}
wl_list_remove(&scene_surface->surface_destroy.link);
free(scene_surface);
break;
@ -110,6 +125,7 @@ struct wlr_scene_surface *wlr_scene_surface_create(struct wlr_scene_node *parent
scene_node_init(&scene_surface->node, WLR_SCENE_NODE_SURFACE, parent);
scene_surface->surface = surface;
wl_list_init(&scene_surface->surface_outputs);
scene_surface->surface_destroy.notify = scene_surface_handle_surface_destroy;
wl_signal_add(&surface->events.destroy, &scene_surface->surface_destroy);
@ -261,25 +277,16 @@ static void render_texture(struct wlr_output *output,
pixman_region32_fini(&damage);
}
struct render_data {
struct wlr_output *output;
pixman_region32_t *damage;
};
static void render_surface_iterator(struct wlr_surface *surface,
int x, int y, void *_data) {
struct render_data *data = _data;
struct wlr_output *output = data->output;
pixman_region32_t *output_damage = data->damage;
static void render_surface(struct wlr_surface *surface,
struct wlr_output *output, int ox, int oy, pixman_region32_t *output_damage) {
struct wlr_texture *texture = wlr_surface_get_texture(surface);
if (texture == NULL) {
return;
}
struct wlr_box box = {
.x = x,
.y = y,
.x = ox,
.y = oy,
.width = surface->current.width,
.height = surface->current.height,
};
@ -294,6 +301,39 @@ static void render_surface_iterator(struct wlr_surface *surface,
render_texture(output, output_damage, texture, &box, matrix);
}
static struct wlr_scene_surface_output *get_or_create_surface_output(
struct wlr_scene_surface *scene_surface, struct wlr_output *output);
static void node_render(struct wlr_scene_node *node,
struct wlr_output *output, int ox, int oy,
pixman_region32_t *output_damage) {
if (!node->current.enabled) {
return;
}
ox += node->current.x;
oy += node->current.y;
if (node->type == WLR_SCENE_NODE_SURFACE) {
struct wlr_scene_surface *scene_surface = scene_node_get_surface(node);
struct wlr_scene_surface_output *so =
get_or_create_surface_output(scene_surface, output);
if (so == NULL) {
return;
}
if (!so->layer->accepted) {
render_surface(scene_surface->surface, output, ox, oy, output_damage);
}
}
struct wlr_scene_node *child;
wl_list_for_each(child, &node->current.children, current.link) {
node_render(child, output, ox, oy, output_damage);
}
}
void wlr_scene_render(struct wlr_scene *scene, struct wlr_output *output,
int lx, int ly, pixman_region32_t *damage) {
pixman_region32_t full_region;
@ -307,20 +347,93 @@ void wlr_scene_render(struct wlr_scene *scene, struct wlr_output *output,
assert(renderer);
if (output->enabled && pixman_region32_not_empty(damage)) {
struct render_data data = {
.output = output,
.damage = damage,
};
scene_node_for_each_surface(&scene->node, -lx, -ly,
render_surface_iterator, &data);
node_render(&scene->node, output, -lx, -ly, damage);
wlr_renderer_scissor(renderer, NULL);
}
pixman_region32_fini(&full_region);
}
static void surface_output_destroy(struct wlr_scene_surface_output *so) {
wl_list_remove(&so->link);
wl_list_remove(&so->output_destroy.link);
free(so);
}
static void surface_output_handle_output_destroy(struct wl_listener *listener,
void *data) {
struct wlr_scene_surface_output *so =
wl_container_of(listener, so, output_destroy);
surface_output_destroy(so);
}
static struct wlr_scene_surface_output *get_or_create_surface_output(
struct wlr_scene_surface *scene_surface, struct wlr_output *output) {
struct wlr_scene_surface_output *so;
wl_list_for_each(so, &scene_surface->surface_outputs, link) {
if (so->output == output) {
return so;
}
}
so = calloc(1, sizeof(struct wlr_scene_surface_output));
if (so == NULL) {
return NULL;
}
so->output = output;
so->layer = wlr_output_layer_create(output);
if (so->layer == NULL) {
free(so);
return NULL;
}
so->output_destroy.notify = surface_output_handle_output_destroy;
wl_signal_add(&output->events.destroy, &so->output_destroy);
wl_list_insert(&scene_surface->surface_outputs, &so->link);
return so;
}
static void node_setup_output_layers(struct wlr_scene_node *node,
struct wlr_output *output, int ox, int oy,
struct wlr_output_layer **prev_layer) {
ox += node->current.x;
oy += node->current.y;
if (node->type == WLR_SCENE_NODE_SURFACE) {
struct wlr_scene_surface *scene_surface = scene_node_get_surface(node);
struct wlr_scene_surface_output *so =
get_or_create_surface_output(scene_surface, output);
if (so == NULL) {
return;
}
struct wlr_buffer *buffer = NULL;
if (node->current.enabled && scene_surface->surface->buffer != NULL) {
buffer = &scene_surface->surface->buffer->base;
}
if (*prev_layer != NULL) {
wlr_output_layer_place_above(so->layer, *prev_layer);
}
*prev_layer = so->layer;
wlr_output_layer_move(so->layer, ox, oy);
wlr_output_layer_attach_buffer(so->layer, buffer);
}
struct wlr_scene_node *child;
wl_list_for_each(child, &node->current.children, current.link) {
node_setup_output_layers(child, output, ox, oy, prev_layer);
}
}
bool wlr_scene_commit_output(struct wlr_scene *scene, struct wlr_output *output,
int lx, int ly) {
struct wlr_output_layer *prev_layer = NULL;
node_setup_output_layers(&scene->node, output, -lx, -ly, &prev_layer);
if (!wlr_output_test(output)) {
return false;
}
if (!wlr_output_attach_render(output, NULL)) {
return false;
}