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[STR New]
Link: http://www.fltk.org/str.php?L2081
Version: 1.3-feature
I request opengl3 in fltk2/fltk.
The patch adds basic opengl3 context creation to fltk2 linux, and it works
for me.
My suggestion is to add 2 new modes (no driver support for these yet) for
the mode() function
OPENGL3_FORWARD_COMPATIBLE
OPENGL3_DEBUG
And by default enable opengl 3 if it's available.
Link: http://www.fltk.org/str.php?L2081
Version: 1.3-feature
diff -u ../origfltk/fltk/OpenGL/Fl_Gl_Choice.cxx OpenGL/Fl_Gl_Choice.cxx
--- ../origfltk/fltk/OpenGL/Fl_Gl_Choice.cxx 2008-10-31 19:39:57.844679794
-0400
+++ OpenGL/Fl_Gl_Choice.cxx 2008-10-30 22:22:33.516924443 -0400
@@ -226,7 +226,40 @@
#endif
GLContext fltk::create_gl_context(XVisualInfo* vis) {
- GLContext context = glXCreateContext(xdisplay, vis, first_context, 1);
+
+ typedef GLXFBConfig (*PFNGLXGETFBCONFIGFROMVISUALSGIXPROC)( Display *dpy,
+ XVisualInfo
*vis );
+ typedef GLXContext (*PFNGLXCREATECONTEXTATTRIBSARB)(
+ Display *dpy,
+ GLXFBConfig config,
+ GLXContext share_context,
+ Bool direct,
+ const int *attrib_list);
+
+ PFNGLXGETFBCONFIGFROMVISUALSGIXPROC glXGetFBConfigFromVisualSGIX =
(PFNGLXGETFBCONFIGFROMVISUALSGIXPROC)
+ glXGetProcAddress((const GLubyte *)
"glXGetFBConfigFromVisualSGIX");
+
+ PFNGLXCREATECONTEXTATTRIBSARB glXCreateContextAttribsARB =
+ (PFNGLXCREATECONTEXTATTRIBSARB) glXGetProcAddress((const
GLubyte *) "glXCreateContextAttribsARB");
+
+ GLContext context;
+ if (glXGetFBConfigFromVisualSGIX == 0 || glXCreateContextAttribsARB == 0)
+ {
+ context = glXCreateContext(xdisplay, vis, first_context, 1);
+ }
+ else
+ {
+ GLXFBConfig c = glXGetFBConfigFromVisualSGIX(xdisplay, vis);
+
+#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
+#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
+
+ int arr2[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
+ GLX_CONTEXT_MINOR_VERSION_ARB, 0, None };
+
+ context = glXCreateContextAttribsARB(xdisplay, c, first_context,
True, arr2);
+ }
+
#if DESTROY_ON_EXIT
Contexts* p = new Contexts;
p->context = context;
Only in OpenGL/: .Fl_Gl_Choice.cxx.swp
Only in OpenGL/: makedepend
Common subdirectories: ../origfltk/fltk/OpenGL/.svn and OpenGL/.svn
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