src/libds/presentation.c

   1 // TODO
   2
   3 #include "libds-private.h"
   4 #include "presentation-time-protocol.h"
   5
   6 #define PRESENTATION_VERSION 1
   7
   8 struct ds_presentation
   9 {
  10     struct wl_global *global;
  11
  12     struct {
  13         struct wl_signal destroy;
  14     } events;
  15 };
  16
  17 struct ds_presentation_feedback
  18 {
  19     struct wl_list resources;
  20
  21 }
  22
  23 struct ds_presentation_surface_state
  24 {
  25 };
  26
  27 struct ds_presentation_feedback
  28 {
  29     struct wl_resource *resource;
  30     struct wl_list link;
  31     uint32_t psf_flags;
  32 };
  33
  34 static void presentation_bind(struct wl_client *client, void *data,
  35         uint32_t version, uint32_t id);
  36 static void handle_display_destroy(struct wl_listener *listener, void *data);
  37
  38 struct ds_presentation *
  39 ds_presentation_create(struct wl_display *display, clockid_t clk_id)
  40 {
  41     struct ds_presentation *presentation;
  42
  43     presentation = calloc(1, sizeof *presentation);
  44     if (!presentation)
  45         return NULL;
  46
  47     presentation->global = wl_global_create(display, &wp_presentation_interface,
  48             PRESENTATION_VERSION, presentation, presentation_bind);
  49     if (!presentation->global) {
  50         free(presentation);
  51         return NULL;
  52     }
  53
  54     presentation->clock = clk_id;
  55
  56     wl_signal_init(&presentation->events.destroy);
  57
  58     presentation->display_destroy.notify = handle_display_destroy;
  59     wl_display_add_destroy_listener(display, &presentation->display_destroy);
  60 }
  61
  62 static void
  63 presentation_handle_destroy(struct wl_client *client, struct wl_resource *resource)
  64 {
  65     wl_resource_destroy(resource);
  66 }
  67
  68 static void
  69 presentation_handle_feedback(struct wl_client *client,
  70         struct wl_resource *presentation_resource,
  71         struct wl_resource *surface_resource, uint32_t id)
  72 {
  73     struct ds_presentation *presentation;
  74     struct ds_surface *surface;
  75
  76     presentation = wl_resource_get_user_data(presentation_resource);
  77     surface = ds_surface_from_resource(surface_resource);
  78 }
  79
  80 static const struct wp_presentation_interface presentation_impl =
  81 {
  82     .destroy = presentation_handle_destroy,
  83     .feedback = presentation_handle_feedback,
  84 };
  85
  86 static void
  87 presentation_bind(struct wl_client *client, void *data,
  88         uint32_t version, uint32_t id)
  89 {
  90     struct ds_presentation *presentation = data;
  91     struct wl_resource *resource;
  92
  93     resource = wl_resource_create(client, &wp_presentation_interface,
  94             version, id);
  95     if (!resource) {
  96         wl_client_post_no_memory(client);
  97         return;
  98     }
  99     wl_resource_set_implementation(resource, &presentation_impl,
 100             presentation, NULL);
 101
 102     wp_presentation_send_clock_id(resource, (uint32_t)presentation->clock);
 103 }
 104
 105 static void
 106 handle_display_destroy(struct wl_listener *listener, void *data)
 107 {
 108     struct ds_presentation *presentation;
 109
 110     presentation = wl_container_of(listener, presentation, display_destroy);
 111     wl_signal_emit(&presentation->events.destroy, presentation);
 112     wl_list_remove(&presentation->display_destroy.link);
 113     wl_global_destroy(presentation->global);
 114     free(presentation);
 115 }