掌機 - GKD Pixel 2 - Wayland Client (xdg-shell) - Add Listener


參考資訊：
https://jan.newmarch.name/Wayland/index.html
https://wayland.freedesktop.org/docs/html/apa.html
https://bugaevc.gitbooks.io/writing-wayland-clients/content/

main.c 

#include <stdio.h>
#include <wayland-client.h>
   
void cb_handle(void *dat, struct wl_registry *reg, uint32_t id, const char *intf, uint32_t ver)
{
    printf("%s, intf:%s, ver:%u, id:%u\n", __func__, intf, ver, id);
}
   
void cb_remove(void *dat, struct wl_registry *reg, uint32_t id)
{
    printf("%s, %u\n", __func__, id);
}
   
int main(int argc, char **argv)
{
    struct wl_display *dis = wl_display_connect(NULL);
    struct wl_registry *reg = wl_display_get_registry(dis);
    struct wl_registry_listener cb = {
        .global = cb_handle,
        .global_remove = cb_remove
    };
   
    wl_registry_add_listener(reg, &cb, NULL);
    wl_display_dispatch(dis);
    wl_display_roundtrip(dis);
 
    wl_registry_destroy(reg);
    wl_display_disconnect(dis);
    return 0;
}

編譯 

$ arm-linux-gnueabihf-gcc main.c -o test -I/opt/mini/include -lwayland-client

執行 

# ./test 
    cb_handle, intf:mali_buffer_sharing, ver:5, id:1
    cb_handle, intf:wl_shm, ver:2, id:2
    cb_handle, intf:zwp_linux_dmabuf_v1, ver:4, id:3
    cb_handle, intf:wl_compositor, ver:6, id:4
    cb_handle, intf:wl_subcompositor, ver:1, id:5
    cb_handle, intf:wl_data_device_manager, ver:3, id:6
    cb_handle, intf:zwlr_gamma_control_manager_v1, ver:1, id:7
    cb_handle, intf:zxdg_output_manager_v1, ver:3, id:8
    cb_handle, intf:ext_idle_notifier_v1, ver:1, id:9
    cb_handle, intf:zwp_idle_inhibit_manager_v1, ver:1, id:10
    cb_handle, intf:zwlr_layer_shell_v1, ver:4, id:11
    cb_handle, intf:xdg_wm_base, ver:5, id:12
    cb_handle, intf:zwp_tablet_manager_v2, ver:1, id:13
    cb_handle, intf:org_kde_kwin_server_decoration_manager, ver:1, id:14
    cb_handle, intf:zxdg_decoration_manager_v1, ver:1, id:15
    cb_handle, intf:zwp_relative_pointer_manager_v1, ver:1, id:16
    cb_handle, intf:zwp_pointer_constraints_v1, ver:1, id:17
    cb_handle, intf:wp_presentation, ver:1, id:18
    cb_handle, intf:wp_alpha_modifier_v1, ver:1, id:19
    cb_handle, intf:zwlr_output_manager_v1, ver:4, id:20
    cb_handle, intf:zwlr_output_power_manager_v1, ver:1, id:21
    cb_handle, intf:zwp_input_method_manager_v2, ver:1, id:22
    cb_handle, intf:zwp_text_input_manager_v3, ver:1, id:23
    cb_handle, intf:ext_foreign_toplevel_list_v1, ver:1, id:24
    cb_handle, intf:zwlr_foreign_toplevel_manager_v1, ver:3, id:25
    cb_handle, intf:ext_session_lock_manager_v1, ver:1, id:26
    cb_handle, intf:wp_drm_lease_device_v1, ver:1, id:27
    cb_handle, intf:zwlr_export_dmabuf_manager_v1, ver:1, id:28
    cb_handle, intf:zwlr_screencopy_manager_v1, ver:3, id:29
    cb_handle, intf:zwlr_data_control_manager_v1, ver:2, id:30
    cb_handle, intf:wp_security_context_manager_v1, ver:1, id:31
    cb_handle, intf:wp_viewporter, ver:1, id:32
    cb_handle, intf:wp_single_pixel_buffer_manager_v1, ver:1, id:33
    cb_handle, intf:wp_content_type_manager_v1, ver:1, id:34
    cb_handle, intf:wp_fractional_scale_manager_v1, ver:1, id:35
    cb_handle, intf:wp_tearing_control_manager_v1, ver:1, id:36
    cb_handle, intf:zxdg_exporter_v1, ver:1, id:37
    cb_handle, intf:zxdg_importer_v1, ver:1, id:38
    cb_handle, intf:zxdg_exporter_v2, ver:1, id:39
    cb_handle, intf:zxdg_importer_v2, ver:1, id:40
    cb_handle, intf:xdg_activation_v1, ver:1, id:41
    cb_handle, intf:wp_cursor_shape_manager_v1, ver:1, id:42
    cb_handle, intf:zwp_virtual_keyboard_manager_v1, ver:1, id:43
    cb_handle, intf:zwlr_virtual_pointer_manager_v1, ver:2, id:44
    cb_handle, intf:zwp_keyboard_shortcuts_inhibit_manager_v1, ver:1, id:45
    cb_handle, intf:zwp_pointer_gestures_v1, ver:3, id:46
    cb_handle, intf:ext_transient_seat_manager_v1, ver:1, id:47
    cb_handle, intf:wl_seat, ver:9, id:48
    cb_handle, intf:zwp_primary_selection_device_manager_v1, ver:1, id:50
    cb_handle, intf:wl_output, ver:4, id:51