commit 7d58e2385452b8373448e3f91013a8cda39c7aa3
Author:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
AuthorDate: Wed Sep 28 08:23:36 2022 +0200
Commit:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
CommitDate: Wed Sep 28 08:23:36 2022 +0200

    macOS: add necessary setWantsBestResolutionOpenGLSurface:YES message.

 src/Fl_cocoa.mm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git src/Fl_cocoa.mm src/Fl_cocoa.mm
index 7832736..9cb302d 100644
--- src/Fl_cocoa.mm
+++ src/Fl_cocoa.mm
@@ -2953,6 +2953,11 @@ NSOpenGLContext *Fl_Cocoa_Window_Driver::gl1ctxt_create() {
                               initWithFormat:gl1pixelformat shareContext:nil];
   [gl1pixelformat release];
   remove_gl_context_opacity(gl1ctxt);
+#if MAC_OS_X_VERSION_MAX_ALLOWED > MAC_OS_X_VERSION_10_7
+  if (fl_mac_os_version >= 100700 && Fl::use_high_res_GL()) {
+    [gl1view setWantsBestResolutionOpenGLSurface:YES];
+  }
+#endif
   [gl1ctxt setView:gl1view];
   return gl1ctxt;
 }