kmscube/cube-wl.cpp

   1
   2 #include <wayland-client.h>
   3 #include <wayland-egl.h>
   4
   5 #include <string.h>
   6 #include <stdio.h>
   7
   8 #include "cube.h"
   9 #include "cube-egl.h"
  10 #include "cube-gles2.h"
  11
  12 static struct wl_compositor *s_compositor = NULL;
  13 static struct wl_shell *s_shell = NULL;
  14 static char s_running = 1;
  15
  16 struct window {
  17         struct wl_surface *surface;
  18         struct wl_shell_surface *shell_surface;
  19         struct wl_egl_window *egl_window;
  20 };
  21
  22 // listeners
  23 static void registry_add_object(void *data, struct wl_registry *registry, uint32_t name, const char *interface, uint32_t version)
  24 {
  25         if (!strcmp(interface, "wl_compositor"))
  26                 s_compositor = (struct wl_compositor*)wl_registry_bind(registry, name, &wl_compositor_interface, 0);
  27         else if (!strcmp(interface, "wl_shell"))
  28                 s_shell = (struct wl_shell*)wl_registry_bind(registry, name, &wl_shell_interface, 0);
  29 }
  30
  31 static void registry_remove_object(void *data, struct wl_registry *registry, uint32_t name)
  32 {
  33
  34 }
  35
  36 static struct wl_registry_listener registry_listener = { &registry_add_object, &registry_remove_object };
  37
  38 static void shell_surface_ping(void *data, struct wl_shell_surface *shell_surface, uint32_t serial)
  39 {
  40         wl_shell_surface_pong(shell_surface, serial);
  41 }
  42
  43 static void shell_surface_configure(void *data, struct wl_shell_surface *shell_surface, uint32_t edges, int32_t width, int32_t height)
  44 {
  45         struct window *window = (struct window*)data;
  46
  47         wl_egl_window_resize(window->egl_window, width, height, 0, 0);
  48 }
  49
  50 static void shell_surface_popup_done(void *data, struct wl_shell_surface *shell_surface)
  51 {
  52
  53 }
  54
  55 static struct wl_shell_surface_listener shell_surface_listener = {
  56         &shell_surface_ping, &shell_surface_configure, &shell_surface_popup_done
  57 };
  58
  59 static void create_window(struct window *window, int32_t width, int32_t height)
  60 {
  61         window->surface = wl_compositor_create_surface(s_compositor);
  62         window->shell_surface = wl_shell_get_shell_surface(s_shell, window->surface);
  63         wl_shell_surface_add_listener(window->shell_surface, &shell_surface_listener, window);
  64         wl_shell_surface_set_toplevel(window->shell_surface);
  65         window->egl_window = wl_egl_window_create(window->surface, width, height);
  66 }
  67
  68 static void delete_window(struct window *window)
  69 {
  70         wl_egl_window_destroy(window->egl_window);
  71         wl_shell_surface_destroy(window->shell_surface);
  72         wl_surface_destroy(window->surface);
  73 }
  74
  75 void main_wl()
  76 {
  77         struct wl_display *display = wl_display_connect(NULL);
  78         struct wl_registry *registry = wl_display_get_registry(display);
  79         wl_registry_add_listener(registry, &registry_listener, NULL);
  80         wl_display_roundtrip(display);
  81
  82         uint32_t width = 600;
  83         uint32_t height = 600;
  84
  85         struct window window;
  86         create_window(&window, width, height);
  87
  88         {
  89                 EglState egl(display);
  90                 EglSurface surface(egl, window.egl_window);
  91                 GlScene scene;
  92
  93                 scene.set_viewport(width, height);
  94
  95                 int framenum = 0;
  96
  97                 while (s_running) {
  98                         wl_display_dispatch_pending(display);
  99
 100                         surface.make_current();
 101                         scene.draw(framenum++);
 102                         surface.swap_buffers();
 103                 }
 104         }
 105
 106         delete_window(&window);
 107         wl_display_disconnect(display);
 108 }