forked from 12to11/12to11
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/* Wayland compositor running on top of an X server.
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Copyright (C) 2022 to various contributors.
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This file is part of 12to11.
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12to11 is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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12to11 is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with 12to11. If not, see <https://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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#include <pixman.h>
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#include "compositor.h"
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static void
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DestroyRegion (struct wl_client *client, struct wl_resource *resource)
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{
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wl_resource_destroy (resource);
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}
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static void
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SubtractRegion (struct wl_client *client, struct wl_resource *resource,
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int32_t x, int32_t y, int32_t width, int32_t height)
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{
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pixman_region32_t *region, operand;
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region = wl_resource_get_user_data (resource);
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pixman_region32_init_rect (&operand, x, y, width, height);
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pixman_region32_subtract (region, region, &operand);
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}
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static void
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AddRegion (struct wl_client *client, struct wl_resource *resource,
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int32_t x, int32_t y, int32_t width, int32_t height)
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{
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pixman_region32_t *region, operand;
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region = wl_resource_get_user_data (resource);
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pixman_region32_init_rect (&operand, x, y, width, height);
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pixman_region32_union (region, region, &operand);
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}
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static const struct wl_region_interface wl_region_impl =
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{
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.destroy = DestroyRegion,
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.subtract = SubtractRegion,
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.add = AddRegion
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};
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static void
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HandleResourceDestroy (struct wl_resource *resource)
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{
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pixman_region32_t *region;
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region = wl_resource_get_user_data (resource);
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pixman_region32_fini (region);
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XLFree (region);
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}
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void
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XLCreateRegion (struct wl_client *client,
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struct wl_resource *resource,
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uint32_t id)
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{
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pixman_region32_t *region;
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struct wl_resource *region_resource;
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region = XLSafeMalloc (sizeof *region);
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if (!region)
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{
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wl_resource_post_no_memory (resource);
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return;
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}
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region_resource
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= wl_resource_create (client, &wl_region_interface,
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wl_resource_get_version (resource),
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id);
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if (!resource)
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{
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wl_resource_post_no_memory (resource);
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XLFree (region);
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return;
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}
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pixman_region32_init (region);
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wl_resource_set_implementation (region_resource,
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&wl_region_impl,
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region,
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HandleResourceDestroy);
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}
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