2 files changed, 18 insertions, 5 deletions
diff --git a/src/drivers/Cocoa/Fl_Cocoa_Window_Driver.H b/src/drivers/Cocoa/Fl_Cocoa_Window_Driver.H
index 7ce5fe6aa..b46a66e9f 100644
--- a/src/drivers/Cocoa/Fl_Cocoa_Window_Driver.H
+++ b/src/drivers/Cocoa/Fl_Cocoa_Window_Driver.H
@@ -34,10 +34,14 @@ class Fl_Window;
 @class CALayer;
 @class NSCursor;
 @class FLWindow;
+@class NSOpenGLContext;
+@class NSOpenGLPixelFormat;
 #else
 class CALayer;
 class NSCursor;
 class FLWindow;
+class NSOpenGLContext;
+class NSOpenGLPixelFormat;
 #endif // __OBJC__
 
 /**
@@ -136,10 +140,18 @@ public:
   virtual void wait_for_expose();
   static void draw_layer_to_context(CALayer *layer, CGContextRef gc, int w, int h);
   virtual int scroll(int src_x, int src_y, int src_w, int src_h, int dest_x, int dest_y, void (*draw_area)(void*, int,int,int,int), void* data);
+  
+  // these functions are OpenGL-related and use objective-c
+  // they are put here to avoid libfltk_gl dependency in Fl_cocoa.mm
+  static NSOpenGLContext* create_GLcontext_for_window(NSOpenGLPixelFormat *pixelformat, NSOpenGLContext *shared_ctx, Fl_Window *window);
+  static NSOpenGLPixelFormat *mode_to_NSOpenGLPixelFormat(int mode, const int*); // uses Objective-c
+  static void GLcontext_update(NSOpenGLContext*); // uses Objective-c
+  static void GLcontext_release(NSOpenGLContext*); // uses Objective-c
+  static void flush_context(NSOpenGLContext*); // uses Objective-c
+  static void GLcontext_makecurrent(NSOpenGLContext*); // uses Objective-c
+  static void GL_cleardrawable(void); // uses Objective-c
 };
 
-
-
 #endif // FL_COCOA_WINDOW_DRIVER_H
 
 //
diff --git a/src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx b/src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx
index a51788018..3035ff94c 100644
--- a/src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx
+++ b/src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx
@@ -39,6 +39,7 @@ Fl_OpenGL_Display_Device::Fl_OpenGL_Display_Device(Fl_OpenGL_Graphics_Driver *gr
 
 #ifdef FL_CFG_GFX_QUARTZ
 #include "../../Fl_Gl_Window_Driver.H"
+#include "../Cocoa/Fl_Cocoa_Window_Driver.H"
 
 // convert BGRA to RGB and also exchange top and bottom
 static uchar *convert_BGRA_to_RGB(uchar *baseAddress, int w, int h, int mByteWidth)
@@ -68,8 +69,8 @@ Fl_RGB_Image* Fl_OpenGL_Display_Device::capture_gl_rectangle(Fl_Gl_Window* glw,
   if (factor != 1) {
     w *= factor; h *= factor; x *= factor; y *= factor;
   }
-  Fl_Cocoa_Gl_Window_Driver::GLcontext_makecurrent(glw->context());
-  Fl_Cocoa_Gl_Window_Driver::flush_context(glw->context()); // to capture also the overlay and for directGL demo
+  Fl_Cocoa_Window_Driver::GLcontext_makecurrent(glw->context());
+  Fl_Cocoa_Window_Driver::flush_context(glw->context()); // to capture also the overlay and for directGL demo
   // Read OpenGL context pixels directly.
   // For extra safety, save & restore OpenGL states that are changed
   glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
@@ -87,7 +88,7 @@ Fl_RGB_Image* Fl_OpenGL_Display_Device::capture_gl_rectangle(Fl_Gl_Window* glw,
   baseAddress = convert_BGRA_to_RGB(baseAddress, w, h, mByteWidth);
   Fl_RGB_Image *img = new Fl_RGB_Image(baseAddress, w, h, 3, 3 * w);
   img->alloc_array = 1;
-  Fl_Cocoa_Gl_Window_Driver::flush_context(glw->context());
+  Fl_Cocoa_Window_Driver::flush_context(glw->context());
   return img;
 }