80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
#include <assert.h>
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#include <pixman.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wayland-server-core.h>
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#include <wlr/types/wlr_region.h>
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#include "types/wlr_region.h"
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static void region_add(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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pixman_region32_t *region = wlr_region_from_resource(resource);
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pixman_region32_union_rect(region, region, x, y, width, height);
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}
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static void region_subtract(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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pixman_region32_t *region = wlr_region_from_resource(resource);
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pixman_region32_union_rect(region, region, x, y, width, height);
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pixman_region32_t rect;
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pixman_region32_init_rect(&rect, x, y, width, height);
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pixman_region32_subtract(region, region, &rect);
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pixman_region32_fini(&rect);
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}
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static void region_destroy(struct wl_client *client, struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static const struct wl_region_interface region_impl = {
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.destroy = region_destroy,
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.add = region_add,
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.subtract = region_subtract,
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};
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static void region_handle_resource_destroy(struct wl_resource *resource) {
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pixman_region32_t *reg = wlr_region_from_resource(resource);
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wl_list_remove(wl_resource_get_link(resource));
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pixman_region32_fini(reg);
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free(reg);
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}
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struct wl_resource *region_create(struct wl_client *client,
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uint32_t version, uint32_t id, struct wl_list *resource_list) {
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pixman_region32_t *region = calloc(1, sizeof(pixman_region32_t));
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if (region == NULL) {
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wl_client_post_no_memory(client);
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return NULL;
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}
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pixman_region32_init(region);
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struct wl_resource *region_resource = wl_resource_create(client,
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&wl_region_interface, version, id);
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if (region_resource == NULL) {
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free(region);
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wl_client_post_no_memory(client);
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return NULL;
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}
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wl_resource_set_implementation(region_resource, ®ion_impl, region,
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region_handle_resource_destroy);
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struct wl_list *resource_link = wl_resource_get_link(region_resource);
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if (resource_list != NULL) {
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wl_list_insert(resource_list, resource_link);
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} else {
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wl_list_init(resource_link);
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}
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return region_resource;
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}
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pixman_region32_t *wlr_region_from_resource(struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &wl_region_interface,
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®ion_impl));
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return wl_resource_get_user_data(resource);
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}
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