commit d5a1e7feb98f0d3efc17ea755a5f94d008cd4f80
Author:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
AuthorDate: Sat Aug 20 17:26:02 2022 +0200
Commit:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
CommitDate: Sat Aug 20 17:26:02 2022 +0200

    Add static Fl_Wayland_Window_Driver::gl_plugin() member function.

 src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx |  3 +--
 src/drivers/Wayland/Fl_Wayland_Window_Driver.H   |  3 +++
 src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx | 30 ++++++++++--------------
 3 files changed, 17 insertions(+), 19 deletions(-)

diff --git src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx
index 57d43c6..6a185ed 100644
--- src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx
+++ src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx
@@ -1115,8 +1115,7 @@ void Fl_Wayland_Screen_Driver::open_display_platform() {
 }
 
 void Fl_Wayland_Screen_Driver::close_display() {
-  Fl_Plugin_Manager pm("wayland.fltk.org");
-  Fl_Wayland_Plugin *plugin = (Fl_Wayland_Plugin*)pm.plugin("gl.wayland.fltk.org");
+  Fl_Wayland_Plugin *plugin = Fl_Wayland_Window_Driver::gl_plugin();
   if (plugin) plugin->terminate();
 
   Fl::remove_fd(wl_display_get_fd(Fl_Wayland_Screen_Driver::wl_display));
diff --git src/drivers/Wayland/Fl_Wayland_Window_Driver.H src/drivers/Wayland/Fl_Wayland_Window_Driver.H
index 2a76b86..a419fa5 100644
--- src/drivers/Wayland/Fl_Wayland_Window_Driver.H
+++ src/drivers/Wayland/Fl_Wayland_Window_Driver.H
@@ -41,12 +41,14 @@
  */
 
 typedef struct _cairo_pattern cairo_pattern_t;
+class Fl_Wayland_Plugin;
 
 
 class Fl_Wayland_Window_Driver : public Fl_Window_Driver
 {
   friend class Fl_X;
   friend class Fl_Wayland_Gl_Window_Driver;
+  friend class Fl_Wayland_Screen_Driver;
 private:
   struct shape_data_type {
     int lw_; ///<  width of shape image
@@ -55,6 +57,7 @@ private:
     cairo_pattern_t *mask_pattern_;
   } *shape_data_;
   static bool in_flush; // useful for progressive window drawing
+  static Fl_Wayland_Plugin *gl_plugin();
   struct wl_cursor *cursor_;
   void delete_cursor_();
   struct gl_start_support *gl_start_support_; // for support of gl_start/gl_finish
diff --git src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
index d9b6d14..b935fe6 100644
--- src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
+++ src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
@@ -98,14 +98,7 @@ Fl_Wayland_Window_Driver::~Fl_Wayland_Window_Driver()
   }
   delete_cursor_();
   if (gl_start_support_) { // occurs only if gl_start/gl_finish was used
-    static Fl_Wayland_Plugin *plugin = NULL;
-    if (!plugin) {
-      Fl_Plugin_Manager pm("wayland.fltk.org");
-      plugin = (Fl_Wayland_Plugin*)pm.plugin("gl.wayland.fltk.org");
-    }
-    if (plugin) {
-      plugin->destroy(gl_start_support_);
-    }
+    gl_plugin()->destroy(gl_start_support_);
   }
 }
 
@@ -388,15 +381,8 @@ void Fl_Wayland_Window_Driver::flush() {
     Fl_Wayland_Window_Driver::in_flush = true;
     Fl_Window_Driver::flush();
     Fl_Wayland_Window_Driver::in_flush = false;
-    static Fl_Wayland_Plugin *plugin = NULL;
-    if (!plugin) {
-      Fl_Plugin_Manager pm("wayland.fltk.org");
-      plugin = (Fl_Wayland_Plugin*)pm.plugin("gl.wayland.fltk.org");
-    }
-    if (plugin) {
-      plugin->do_swap(pWindow); // useful only for GL win with overlay
-      if (scale != fl_graphics_driver->scale() || W != pWindow->w() || H != pWindow->h()) plugin->invalidate(pWindow);
-    }
+    gl_plugin()->do_swap(pWindow); // useful only for GL win with overlay
+    if (scale != fl_graphics_driver->scale() || W != pWindow->w() || H != pWindow->h()) gl_plugin()->invalidate(pWindow);
     return;
   }
   struct wld_window *window = fl_xid(pWindow);
@@ -1531,3 +1517,13 @@ cairo_t *fl_wl_cairo() {
 struct wl_display *fl_wl_display() {
   return Fl_Wayland_Screen_Driver::wl_display;
 }
+
+
+Fl_Wayland_Plugin *Fl_Wayland_Window_Driver::gl_plugin() {
+  static Fl_Wayland_Plugin *plugin = NULL;
+  if (!plugin) {
+    Fl_Plugin_Manager pm("wayland.fltk.org");
+    plugin = (Fl_Wayland_Plugin*)pm.plugin("gl.wayland.fltk.org");
+  }
+  return plugin;
+}