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scaled-scene-buffer: store all the scaled_scene_buffers in a single list

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tokyo4j 2025-01-12 18:14:59 +09:00 • committed by Hiroaki Yamamoto
parent 138a514c90
commit c49f577c6b
5 changed files with 21 additions and 32 deletions
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13
include/common/scaled-scene-buffer.h
View file

@ -36,12 +36,7 @@ struct scaled_scene_buffer {
struct wl_listener destroy;
struct wl_listener outputs_update;
const struct scaled_scene_buffer_impl *impl;
/*
* Pointer to the per-implementation list of scaled-scene-buffers.
* This is used to share the backing wlr_buffers.
*/
struct wl_list *cached_buffers;
struct wl_list link; /* struct scaled_scene_buffer.cached_buffers */
struct wl_list link; /* all_scaled_buffers */
};
/*
@ -89,8 +84,8 @@ struct scaled_scene_buffer {
* allocations.
*
* Besides caching buffers for each scale per scaled_scene_buffer, we also
* store all the scaled_scene_buffers in a per-implementer list passed as
* @cached_buffers in order to reuse backing buffers for visually duplicated
* store all the scaled_scene_buffers from all the implementers in a list
* in order to reuse backing buffers for visually duplicated
* scaled_scene_buffers found via impl->equal().
*
* All requested lab_data_buffers via impl->create_buffer() will be locked
@ -119,7 +114,7 @@ struct scaled_scene_buffer {
struct scaled_scene_buffer *scaled_scene_buffer_create(
struct wlr_scene_tree *parent,
const struct scaled_scene_buffer_impl *implementation,
struct wl_list *cached_buffers, bool drop_buffer);
bool drop_buffer);
/**
* scaled_scene_buffer_request_update - mark the buffer that needs to be

6
src/common/scaled-font-buffer.c
View file

@ -7,14 +7,10 @@
#include <wlr/util/log.h>
#include "buffer.h"
#include "common/font.h"
#include "common/list.h"
#include "common/mem.h"
#include "common/scaled-scene-buffer.h"
#include "common/scaled-font-buffer.h"
/* This holds all the scaled-font-buffers and used for sharing backing buffers */
static struct wl_list cached_buffers = WL_LIST_INIT(&cached_buffers);
static struct lab_data_buffer *
_create_buffer(struct scaled_scene_buffer *scaled_buffer, double scale)
{
@ -78,7 +74,7 @@ scaled_font_buffer_create(struct wlr_scene_tree *parent)
assert(parent);
struct scaled_font_buffer *self = znew(*self);
struct scaled_scene_buffer *scaled_buffer = scaled_scene_buffer_create(
parent, &impl, &cached_buffers, /* drop_buffer */ true);
parent, &impl, /* drop_buffer */ true);
if (!scaled_buffer) {
free(self);
return NULL;

5
src/common/scaled-img-buffer.c
View file

@ -4,15 +4,12 @@
#include <wayland-server-core.h>
#include <wlr/types/wlr_scene.h>
#include "buffer.h"
#include "common/list.h"
#include "common/mem.h"
#include "common/scaled-img-buffer.h"
#include "common/scaled-scene-buffer.h"
#include "img/img.h"
#include "node.h"
static struct wl_list cached_buffers = WL_LIST_INIT(&cached_buffers);
static struct lab_data_buffer *
_create_buffer(struct scaled_scene_buffer *scaled_buffer, double scale)
{
@ -55,7 +52,7 @@ scaled_img_buffer_create(struct wlr_scene_tree *parent, struct lab_img *img,
{
assert(img);
struct scaled_scene_buffer *scaled_buffer = scaled_scene_buffer_create(
parent, &impl, &cached_buffers, /* drop_buffer */ true);
parent, &impl, /* drop_buffer */ true);
struct scaled_img_buffer *self = znew(*self);
self->scaled_buffer = scaled_buffer;
self->scene_buffer = scaled_buffer->scene_buffer;

5
src/common/scaled-rect-buffer.c
View file

@ -7,14 +7,11 @@
#include <wlr/util/log.h>
#include "buffer.h"
#include "common/graphic-helpers.h"
#include "common/list.h"
#include "common/macros.h"
#include "common/mem.h"
#include "common/scaled-scene-buffer.h"
#include "common/scaled-rect-buffer.h"
static struct wl_list cached_buffers = WL_LIST_INIT(&cached_buffers);
static void
draw_rectangle_path(cairo_t *cairo, int width, int height, int border_width)
{
@ -100,7 +97,7 @@ struct scaled_rect_buffer *scaled_rect_buffer_create(
assert(parent);
struct scaled_rect_buffer *self = znew(*self);
struct scaled_scene_buffer *scaled_buffer = scaled_scene_buffer_create(
parent, &impl, &cached_buffers, /* drop_buffer */ true);
parent, &impl, /* drop_buffer */ true);
scaled_buffer->data = self;
self->scaled_buffer = scaled_buffer;
self->scene_buffer = scaled_buffer->scene_buffer;

24
src/common/scaled-scene-buffer.c
View file

@ -8,11 +8,18 @@
#include <wlr/types/wlr_scene.h>
#include <wlr/util/log.h>
#include "buffer.h"
#include "common/list.h"
#include "common/macros.h"
#include "common/mem.h"
#include "common/scaled-scene-buffer.h"
#include "node.h"
/*
* This holds all the scaled_scene_buffers from all the implementers.
* This is used to share visually duplicated buffers found via impl->equal().
*/
static struct wl_list all_scaled_buffers = WL_LIST_INIT(&all_scaled_buffers);
/* Internal API */
static void
_cache_entry_destroy(struct scaled_scene_buffer_cache_entry *cache_entry, bool drop_buffer)
@ -63,13 +70,16 @@ _update_buffer(struct scaled_scene_buffer *self, double scale)
struct wlr_buffer *wlr_buffer = NULL;
if (self->impl->equal && self->cached_buffers) {
if (self->impl->equal) {
/* Search from other cached scaled-scene-buffers */
struct scaled_scene_buffer *scene_buffer;
wl_list_for_each(scene_buffer, self->cached_buffers, link) {
wl_list_for_each(scene_buffer, &all_scaled_buffers, link) {
if (scene_buffer == self) {
continue;
}
if (self->impl != scene_buffer->impl) {
continue;
}
if (!self->impl->equal(self, scene_buffer)) {
continue;
}
@ -174,7 +184,7 @@ _handle_outputs_update(struct wl_listener *listener, void *data)
struct scaled_scene_buffer *
scaled_scene_buffer_create(struct wlr_scene_tree *parent,
const struct scaled_scene_buffer_impl *impl,
struct wl_list *cached_buffers, bool drop_buffer)
bool drop_buffer)
{
assert(parent);
assert(impl);
@ -199,13 +209,7 @@ scaled_scene_buffer_create(struct wlr_scene_tree *parent,
self->drop_buffer = drop_buffer;
wl_list_init(&self->cache);
self->cached_buffers = cached_buffers;
if (self->cached_buffers) {
wl_list_insert(self->cached_buffers, &self->link);
} else {
/* Ensure self->link can be removed safely in the destroy handler */
wl_list_init(&self->link);
}
wl_list_insert(&all_scaled_buffers, &self->link);
/* Listen to outputs_update so we get notified about scale changes */
self->outputs_update.notify = _handle_outputs_update;