C++ (Cpp) xcb_dri2_get_msc_reply примеры использования

Пример #1

Файл: platform_x11.c Проект: BNieuwenhuizen/mesa

static EGLBoolean
dri2_x11_get_sync_values(_EGLDisplay *display, _EGLSurface *surface,
                         EGLuint64KHR *ust, EGLuint64KHR *msc,
                         EGLuint64KHR *sbc)
{
   struct dri2_egl_display *dri2_dpy = dri2_egl_display(display);
   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
   xcb_dri2_get_msc_cookie_t cookie;
   xcb_dri2_get_msc_reply_t *reply;

   cookie = xcb_dri2_get_msc(dri2_dpy->conn, dri2_surf->drawable);
   reply = xcb_dri2_get_msc_reply(dri2_dpy->conn, cookie, NULL);

   if (!reply) {
      _eglError(EGL_BAD_ACCESS, __func__);
      return EGL_FALSE;
   }

   *ust = ((EGLuint64KHR) reply->ust_hi << 32) | reply->ust_lo;
   *msc = ((EGLuint64KHR) reply->msc_hi << 32) | reply->msc_lo;
   *sbc = ((EGLuint64KHR) reply->sbc_hi << 32) | reply->sbc_lo;
   free(reply);

   return EGL_TRUE;
}

Пример #2

Файл: vl_winsys_dri.c Проект: ValveSoftware/steamos_mesa

static uint64_t
vl_dri2_screen_get_timestamp(struct vl_screen *vscreen, void *drawable)
{
   struct vl_dri_screen *scrn = (struct vl_dri_screen *)vscreen;
   xcb_dri2_get_msc_cookie_t cookie;
   xcb_dri2_get_msc_reply_t *reply;

   assert(scrn);

   vl_dri2_set_drawable(scrn, (Drawable)drawable);
   if (!scrn->last_ust) {
      cookie = xcb_dri2_get_msc_unchecked(scrn->conn, (Drawable)drawable);
      reply = xcb_dri2_get_msc_reply(scrn->conn, cookie, NULL);

      if (reply) {
         vl_dri2_handle_stamps(scrn, reply->ust_hi, reply->ust_lo,
                               reply->msc_hi, reply->msc_lo);
         free(reply);
      }
   }
   return scrn->last_ust;
}