Changes related to OpenGL context handling (only one context per display) and patches to avoid using widget structure in image cache */

1 files changed, 20 insertions, 0 deletions

diff --git a/generic/tkZinc.h b/generic/tkZinc.h
index 78b8556..361fdd2 100644
--- a/generic/tkZinc.h
+++ b/generic/tkZinc.h
@@ -60,6 +60,26 @@ typedef struct _ZnTagSearch {
   ZnList	item_stack;
 } ZnTagSearch;
 
+#ifdef GL
+typedef struct _ZnGLContextEntry {
+  ZnGLContext	context;
+  Display	*dpy;
+  ZnReal	max_line_width;
+  ZnReal	max_point_width;
+  unsigned int	max_tex_size;
+#ifdef WIN
+  HDC		hdc;
+#else
+  XVisualInfo	*visual; /* Should these two be managed by screen ? */
+  Colormap	colormap;
+#endif
+  struct _ZnGLContextEntry *next;
+} ZnGLContextEntry;
+
+ZnGLContextEntry *ZnGetGLContext(Display *dpy);
+void ZnGLMakeCurrent(Display *dpy, Tk_Window win);
+void ZnGLSwapBuffers(Display *dpy, Tk_Window win);
+#endif
 
 int ZnParseCoordList(ZnWInfo *wi, Tcl_Obj *arg, ZnPoint **pts,
 		     char **controls, unsigned int *num_pts, ZnBool *old_format);