Author: spitzak
Date: 2009-09-16 18:57:42 -0700 (Wed, 16 Sep 2009)
New Revision: 6875
Log:
More comments and test code added for OpenGL3.0 support. I could not get any
visual to work, they all produced identical errors.
Modified:
trunk/OpenGL/Fl_Gl_Choice.cxx
Modified: trunk/OpenGL/Fl_Gl_Choice.cxx
===================================================================
--- trunk/OpenGL/Fl_Gl_Choice.cxx 2009-09-17 01:09:48 UTC (rev 6874)
+++ trunk/OpenGL/Fl_Gl_Choice.cxx 2009-09-17 01:57:42 UTC (rev 6875)
@@ -165,7 +165,14 @@
list[n] = 0;
open_display();
+#if 0 // force it to use a specific visual number, for testing
+ XVisualInfo templt;
+ templt.visualid = 0x34; // use glxinfo to list these numbers
+ int num;
+ XVisualInfo *vis=XGetVisualInfo(xdisplay, VisualIDMask, &templt, &num);
+#else
XVisualInfo* vis = glXChooseVisual(xdisplay, xscreen, list);
+#endif
if (!vis) {
# if defined(GLX_VERSION_1_1) && defined(GLX_SGIS_multisample)
if (mode&MULTISAMPLE) return find(mode&~MULTISAMPLE);
@@ -207,11 +214,6 @@
// Define this to destroy all OpenGL contexts at exit to try to fix NVidia
crashes
#define DESTROY_ON_EXIT 0
-// Define this to select OpenGL3 contexts. This is disabled because it fails
-// on SUSE11 with Nvidia cards. I suspect the visual selected above is
-// incorrect but do not know how to fix that.
-#define OPENGL3 0
-
#if DESTROY_ON_EXIT
static struct Contexts {
GLContext context;
@@ -232,7 +234,13 @@
GLContext fltk::create_gl_context(XVisualInfo* vis) {
GLContext context;
-#if OPENGL3 // enable OpenGL3 support if possible
+#if 0 // enable OpenGL3 support if possible
+ // This is disabled because it does not work on SUSE11 with NVidia cards.
+ // I tried all the visuals and none worked. Error is returned when attempts
+ // are made to use the context:
+ // XRequest.144: BadAlloc (insufficient resources for operation) 0x1e00006
+ // XRequest.144: GLXBadContext 0x1e00006
+ // XRequest.144: GLXBadDrawable 0x1e00004
typedef GLXFBConfig (*PFNGLXGETFBCONFIGFROMVISUALSGIXPROC)(
Display *dpy,
XVisualInfo *vis );
@@ -250,13 +258,16 @@
(PFNGLXCREATECONTEXTATTRIBSARB) glXGetProcAddress((const
GLubyte *) "glXCreateContextAttribsARB");
if (glXGetFBConfigFromVisualSGIX && glXCreateContextAttribsARB) {
+ printf("A\n");
// printf("Success!\n");
GLXFBConfig c = glXGetFBConfigFromVisualSGIX(xdisplay, vis);
+ printf("B\n");
# 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);
+ printf("C\n");
} else
#endif
context = glXCreateContext(xdisplay, vis, first_context, 1);
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