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wlr_scene: Convert render_list to wl_array

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This simplifies some of the growth logic, but uses array_realloc to shrink the
array if needed.
This commit is contained in:
Kenny Levinsen 2022-08-18 11:54:03 +02:00
parent 724aa38fc2
commit 7c575922c0
2 changed files with 19 additions and 56 deletions
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7
include/wlr/types/wlr_scene.h
View file

@ -157,11 +157,6 @@ struct wlr_scene_buffer {
pixman_region32_t opaque_region;
};
struct wlr_scene_output_render_list {
struct wlr_scene_node **data;
size_t capacity;
};
/** A viewport for an output in the scene-graph */
struct wlr_scene_output {
struct wlr_output *output;
@ -189,7 +184,7 @@ struct wlr_scene_output {
struct wl_list damage_highlight_regions;
struct wlr_scene_output_render_list render_list;
struct wl_array render_list;
};
/** A layer shell scene helper */

68
types/scene/wlr_scene.c
View file

@ -13,10 +13,10 @@
#include <wlr/util/region.h>
#include "types/wlr_buffer.h"
#include "types/wlr_scene.h"
#include "util/array.h"
#include "util/time.h"
#define HIGHLIGHT_DAMAGE_FADEOUT_TIME 250
#define RENDER_LIST_MIN_ALLOCATION 8
static struct wlr_scene_tree *scene_tree_from_node(struct wlr_scene_node *node) {
assert(node->type == WLR_SCENE_NODE_TREE);
@ -1276,7 +1276,7 @@ void wlr_scene_output_destroy(struct wlr_scene_output *scene_output) {
wl_list_remove(&scene_output->output_damage.link);
wl_list_remove(&scene_output->output_needs_frame.link);
free(scene_output->render_list.data);
wl_array_release(&scene_output->render_list);
free(scene_output);
}
@ -1321,18 +1321,9 @@ static bool scene_node_invisible(struct wlr_scene_node *node) {
return false;
}
static size_t max(size_t fst, size_t snd) {
if (fst > snd) {
return fst;
} else {
return snd;
}
}
struct render_list_constructor_data {
struct wlr_box box;
struct wlr_scene_output_render_list *render_list;
size_t size;
struct wl_array *render_list;
};
static bool construct_render_list_iterator(struct wlr_scene_node *node,
@ -1367,22 +1358,11 @@ static bool construct_render_list_iterator(struct wlr_scene_node *node,
pixman_region32_fini(&intersection);
if (data->size == data->render_list->capacity) {
size_t alloc_size =
max(data->render_list->capacity * 2, RENDER_LIST_MIN_ALLOCATION);
void *alloc = realloc(data->render_list->data, alloc_size
* sizeof(struct wlr_scene_node *));
if (alloc) {
data->render_list->data = alloc;
data->render_list->capacity = alloc_size;
}
struct wlr_scene_node **entry = wl_array_add(data->render_list,
sizeof(struct wlr_scene_node *));
if (entry) {
*entry = node;
}
if (data->size < data->render_list->capacity) {
data->render_list->data[data->size++] = node;
}
return false;
}
@ -1441,21 +1421,6 @@ static bool scene_node_try_direct_scanout(struct wlr_scene_node *node,
return wlr_output_commit(output);
}
static void compact_render_list(struct wlr_scene_output_render_list *list, size_t size) {
assert(size <= list->capacity);
size_t alloc_size = max(RENDER_LIST_MIN_ALLOCATION, size);
if (alloc_size == list->capacity) {
return;
}
void *alloc = realloc(list->data, alloc_size * sizeof(struct wlr_scene_node *));
if (alloc) {
list->data = alloc;
list->capacity = alloc_size;
}
}
bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
struct wlr_output *output = scene_output->output;
enum wlr_scene_debug_damage_option debug_damage =
@ -1467,20 +1432,23 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
struct render_list_constructor_data list_con = {
.box = { .x = scene_output->x, .y = scene_output->y },
.render_list = &scene_output->render_list,
.size = 0,
};
wlr_output_effective_resolution(output,
&list_con.box.width, &list_con.box.height);
list_con.render_list->size = 0;
scene_nodes_in_box(&scene_output->scene->tree.node, &list_con.box,
construct_render_list_iterator, &list_con);
compact_render_list(list_con.render_list, list_con.size);
array_realloc(list_con.render_list, list_con.render_list->size);
int list_len = list_con.render_list->size / sizeof(struct wlr_scene_node *);
struct wlr_scene_node **list_data = list_con.render_list->data;
// if there is only one thing to render let's see if that thing can be
// directly scanned out
bool scanout = false;
if (list_con.size == 1) {
struct wlr_scene_node *node = list_con.render_list->data[0];
if (list_len == 1) {
struct wlr_scene_node *node = list_data[0];
scanout = scene_node_try_direct_scanout(node, scene_output, &list_con.box);
}
@ -1493,7 +1461,7 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
}
if (scanout) {
struct wlr_scene_node *node = list_con.render_list->data[0];
struct wlr_scene_node *node = list_data[0];
assert(node->type == WLR_SCENE_NODE_BUFFER);
struct wlr_scene_buffer *buffer = wlr_scene_buffer_from_node(node);
@ -1569,11 +1537,11 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
wlr_renderer_clear(renderer, (float[4]){ 0.0, 0.0, 0.0, 1.0 });
}
for (int i = list_con.size - 1; i >= 0; i--) {
struct wlr_scene_node *node = list_con.render_list->data[i];
for (int i = list_len - 1; i >= 0; i--) {
struct wlr_scene_node *node = list_data[i];
scene_node_render(node, scene_output, &damage);
}
wlr_renderer_scissor(renderer, NULL);
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT) {