Begin moving non window-related member functions out of Fl_X class.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11629 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

2 files changed, 10 insertions, 15 deletions

diff --git a/src/Fl_x.cxx b/src/Fl_x.cxx
index 47b984480..cdcbfe4f6 100644
--- a/src/Fl_x.cxx
+++ b/src/Fl_x.cxx
@@ -40,6 +40,7 @@
 #  include "drivers/X11/Fl_X11_Screen_Driver.H"
 #  include "drivers/X11/Fl_X11_Window_Driver.H"
 #  include "drivers/X11/Fl_X11_System_Driver.H"
+#  include "drivers/Xlib/Fl_Xlib_Graphics_Driver.H"
 #  include <unistd.h>
 #  include <time.h>
 #  include <sys/time.h>
@@ -2194,17 +2195,17 @@ int Fl_X::ewmh_supported() {
   return result;
 }
 
-int Fl_X::xrender_supported() {
 #if HAVE_XRENDER
-  static int result = -1;
-
-  if (result == -1) {
-    fl_open_display();
-
-    int nop1, nop2;
-    result = XRenderQueryExtension(fl_display, &nop1, &nop2);
-  }
+static int xrender_supported() {
+  int nop1, nop2;
+  fl_open_display();
+  return XRenderQueryExtension(fl_display, &nop1, &nop2);
+}
+#endif
 
+char Fl_Xlib_Graphics_Driver::can_do_alpha_blending() {
+#if HAVE_XRENDER
+  static char result = (char)xrender_supported();
   return result;
 #else
   return 0;
diff --git a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx
index 98dafbb7e..44d0ad1a5 100644
--- a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx
+++ b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx
@@ -61,12 +61,6 @@ void Fl_Xlib_Graphics_Driver::gc(void *value) {
   fl_gc = gc_;
 }
 
-
-char Fl_Xlib_Graphics_Driver::can_do_alpha_blending() {
-  return Fl_X::xrender_supported();
-}
-
-
 void Fl_Xlib_Graphics_Driver::copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy) {
   XCopyArea(fl_display, pixmap, fl_window, gc_, srcx, srcy, w, h, x, y);
 }