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mtk: Use an arc box for region

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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3363>
This commit is contained in:
Zander Brown 2023-11-04 13:56:00 +00:00
parent 8ec26dfd27
commit 9610665ab8
3 changed files with 23 additions and 47 deletions
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1
mtk/mtk/meson.build
View file

@ -21,7 +21,6 @@ if have_x11
endif
mtk_private_headers = [
'mtk-region-private.h',
]

31
mtk/mtk/mtk-region-private.h
View file

@ -1,31 +0,0 @@
/*
* Mtk
*
* A low-level base library.
*
* Copyright (C) 2023 Red Hat
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <pixman.h>
struct _MtkRegion
{
gatomicrefcount ref_count;
pixman_region32_t inner_region;
};

38
mtk/mtk/mtk-region.c
View file

@ -22,8 +22,15 @@
*/
#include "config.h"
#include <pixman.h>
#include "mtk/mtk-region.h"
#include "mtk/mtk-region-private.h"
struct _MtkRegion
{
pixman_region32_t inner_region;
};
/**
* mtk_region_ref:
@ -38,8 +45,15 @@ mtk_region_ref (MtkRegion *region)
{
g_return_val_if_fail (region != NULL, NULL);
g_atomic_ref_count_inc (&region->ref_count);
return region;
return g_atomic_rc_box_acquire (region);
}
static void
clear_region (gpointer data)
{
MtkRegion *region = data;
pixman_region32_fini (&region->inner_region);
}
void
@ -47,11 +61,7 @@ mtk_region_unref (MtkRegion *region)
{
g_return_if_fail (region != NULL);
if (g_atomic_ref_count_dec (&region->ref_count))
{
pixman_region32_fini (&region->inner_region);
g_free (region);
}
g_atomic_rc_box_release_full (region, clear_region);
}
G_DEFINE_BOXED_TYPE (MtkRegion, mtk_region,
@ -62,9 +72,8 @@ mtk_region_create (void)
{
MtkRegion *region;
region = g_new0 (MtkRegion, 1);
region = g_atomic_rc_box_new0 (MtkRegion);
g_atomic_ref_count_init (&region->ref_count);
pixman_region32_init (&region->inner_region);
return region;
@ -181,7 +190,7 @@ mtk_region_union_rectangle (MtkRegion *region,
pixman_region32_init_rect (&pixman_region,
rect->x, rect->y,
rect->width, rect->height);
pixman_region32_union (&region->inner_region,
pixman_region32_union (&region->inner_region,
&region->inner_region,
&pixman_region);
pixman_region32_fini (&pixman_region);
@ -265,8 +274,8 @@ mtk_region_create_rectangle (const MtkRectangle *rect)
MtkRegion *region;
g_return_val_if_fail (rect != NULL, NULL);
region = g_new0 (MtkRegion, 1);
g_atomic_ref_count_init (&region->ref_count);
region = g_atomic_rc_box_new0 (MtkRegion);
pixman_region32_init_rect (&region->inner_region,
rect->x, rect->y,
rect->width, rect->height);
@ -285,8 +294,7 @@ mtk_region_create_rectangles (const MtkRectangle *rects,
g_return_val_if_fail (rects != NULL, NULL);
g_return_val_if_fail (n_rects != 0, NULL);
region = g_new0 (MtkRegion, 1);
g_atomic_ref_count_init (&region->ref_count);
region = g_atomic_rc_box_new0 (MtkRegion);
if (n_rects == 1)
{