Initial revision

10 files changed, 1706 insertions, 0 deletions

diff --git a/src/glw/GLwDrawA.c b/src/glw/GLwDrawA.c
new file mode 100644
index 00000000000..670ddb18edb
--- /dev/null
+++ b/src/glw/GLwDrawA.c
@@ -0,0 +1,686 @@
+/*
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED 
+ * Permission to use, copy, modify, and distribute this software for 
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that 
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. 
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * 
+ * US Government Users Restricted Rights 
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+
+/*
+ *
+ * This file has been slightly modified from the original for use with Mesa
+ *
+ *     Jeroen van der Zijp
+ *
+ *     [email protected]
+ *
+ */
+#include <X11/IntrinsicP.h>
+#include <X11/StringDefs.h>
+#include <GL/glx.h>
+#include <GL/gl.h>
+#ifdef __GLX_MOTIF
+#include <Xm/PrimitiveP.h>
+#include "GLwMDrawAP.h"
+#else 
+#include "GLwDrawAP.h"
+#endif 
+#include <assert.h>
+#include <stdio.h>
+
+#ifdef __GLX_MOTIF
+#define GLwDrawingAreaWidget             GLwMDrawingAreaWidget
+#define GLwDrawingAreaClassRec           GLwMDrawingAreaClassRec
+#define glwDrawingAreaClassRec           glwMDrawingAreaClassRec
+#define glwDrawingAreaWidgetClass        glwMDrawingAreaWidgetClass
+#define GLwDrawingAreaRec                GLwMDrawingAreaRec
+#endif 
+
+#define ATTRIBLIST_SIZE 30
+
+#define offset(field) XtOffset(GLwDrawingAreaWidget,glwDrawingArea.field)
+
+
+/* forward definitions */
+static void createColormap(GLwDrawingAreaWidget w,int offset,XrmValue *value);
+static void Initialize(GLwDrawingAreaWidget req,GLwDrawingAreaWidget neww,ArgList args,Cardinal *num_args);
+static void Realize(Widget w,Mask *valueMask,XSetWindowAttributes *attributes);
+static void Redraw(GLwDrawingAreaWidget w,XEvent *event,Region region);
+static void Resize(GLwDrawingAreaWidget glw);
+static void Destroy(GLwDrawingAreaWidget glw);
+static void glwInput(GLwDrawingAreaWidget glw,XEvent *event,String *params,Cardinal *numParams);
+
+
+
+static char defaultTranslations[] =
+#ifdef __GLX_MOTIF
+     "<Key>osfHelp:PrimitiveHelp() \n"
+#endif
+    "<KeyDown>:   glwInput() \n\
+     <KeyUp>:     glwInput() \n\
+     <BtnDown>:   glwInput() \n\
+     <BtnUp>:     glwInput() \n\
+     <BtnMotion>: glwInput() ";
+
+
+static XtActionsRec actions[] = {
+  {"glwInput",(XtActionProc)glwInput},                /* key or mouse input */
+  };
+
+
+/*
+ * There is a bit of unusual handling of the resources here.
+ * Because Xt insists on allocating the colormap resource when it is
+ * processing the core resources (even if we redeclare the colormap
+ * resource here, we need to do a little trick.  When Xt first allocates
+ * the colormap, we allow it to allocate the default one, since we have
+ * not yet determined the appropriate visual (which is determined from
+ * resources parsed after the colormap).  We also let it allocate colors
+ * in that default colormap.
+ *
+ * In the initialize proc we calculate the actual visual.  Then, we
+ * reobtain the colormap resource using XtGetApplicationResources in
+ * the initialize proc.  If requested, we also reallocate colors in
+ * that colormap using the same method.
+ */
+
+static XtResource resources[] = {
+  /* The GLX attributes.  Add any new attributes here */
+
+  {GLwNbufferSize, GLwCBufferSize, XtRInt, sizeof (int),
+       offset(bufferSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNlevel, GLwCLevel, XtRInt, sizeof (int),
+       offset(level), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNrgba, GLwCRgba, XtRBoolean, sizeof (Boolean),
+       offset(rgba), XtRImmediate, (XtPointer) FALSE},
+  
+  {GLwNdoublebuffer, GLwCDoublebuffer, XtRBoolean, sizeof (Boolean),
+       offset(doublebuffer), XtRImmediate, (XtPointer) FALSE},
+  
+  {GLwNstereo, GLwCStereo, XtRBoolean, sizeof (Boolean),
+       offset(stereo), XtRImmediate, (XtPointer) FALSE},
+  
+  {GLwNauxBuffers, GLwCAuxBuffers, XtRInt, sizeof (int),
+       offset(auxBuffers), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNredSize, GLwCColorSize, XtRInt, sizeof (int),
+       offset(redSize), XtRImmediate, (XtPointer) 1},
+  
+  {GLwNgreenSize, GLwCColorSize, XtRInt, sizeof (int),
+       offset(greenSize), XtRImmediate, (XtPointer) 1},
+  
+  {GLwNblueSize, GLwCColorSize, XtRInt, sizeof (int),
+       offset(blueSize), XtRImmediate, (XtPointer) 1},
+  
+  {GLwNalphaSize, GLwCAlphaSize, XtRInt, sizeof (int),
+       offset(alphaSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNdepthSize, GLwCDepthSize, XtRInt, sizeof (int),
+       offset(depthSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNstencilSize, GLwCStencilSize, XtRInt, sizeof (int),
+       offset(stencilSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNaccumRedSize, GLwCAccumColorSize, XtRInt, sizeof (int),
+       offset(accumRedSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNaccumGreenSize, GLwCAccumColorSize, XtRInt, sizeof (int),
+       offset(accumGreenSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNaccumBlueSize, GLwCAccumColorSize, XtRInt, sizeof (int),
+       offset(accumBlueSize), XtRImmediate, (XtPointer) 0},
+  
+  {GLwNaccumAlphaSize, GLwCAccumAlphaSize, XtRInt, sizeof (int),
+       offset(accumAlphaSize), XtRImmediate, (XtPointer) 0},
+  
+  /* the attribute list */
+  {GLwNattribList, GLwCAttribList, XtRPointer, sizeof(int *),
+       offset(attribList), XtRImmediate, (XtPointer) NULL},
+
+  /* the visual info */
+  {GLwNvisualInfo, GLwCVisualInfo, GLwRVisualInfo, sizeof (XVisualInfo *),
+       offset(visualInfo), XtRImmediate, (XtPointer) NULL},
+
+  /* miscellaneous resources */
+  {GLwNinstallColormap, GLwCInstallColormap, XtRBoolean, sizeof (Boolean),
+       offset(installColormap), XtRImmediate, (XtPointer) TRUE},
+
+  {GLwNallocateBackground, GLwCAllocateColors, XtRBoolean, sizeof (Boolean),
+       offset(allocateBackground), XtRImmediate, (XtPointer) FALSE},
+
+  {GLwNallocateOtherColors, GLwCAllocateColors, XtRBoolean, sizeof (Boolean),
+       offset(allocateOtherColors), XtRImmediate, (XtPointer) FALSE},
+
+  {GLwNinstallBackground, GLwCInstallBackground, XtRBoolean, sizeof (Boolean),
+       offset(installBackground), XtRImmediate, (XtPointer) TRUE},
+
+  {GLwNginitCallback, GLwCCallback, XtRCallback, sizeof (XtCallbackList),
+       offset(ginitCallback), XtRImmediate, (XtPointer) NULL},
+
+  {GLwNinputCallback, GLwCCallback, XtRCallback, sizeof (XtCallbackList),
+       offset(inputCallback), XtRImmediate, (XtPointer) NULL},
+
+  {GLwNresizeCallback, GLwCCallback, XtRCallback, sizeof (XtCallbackList),
+       offset(resizeCallback), XtRImmediate, (XtPointer) NULL},
+
+  {GLwNexposeCallback, GLwCCallback, XtRCallback, sizeof (XtCallbackList),
+       offset(exposeCallback), XtRImmediate, (XtPointer) NULL},
+
+  /* Changes to Motif primitive resources */
+#ifdef __GLX_MOTIF
+  {XmNtraversalOn, XmCTraversalOn, XmRBoolean, sizeof (Boolean),
+   XtOffset (GLwDrawingAreaWidget, primitive.traversal_on), XmRImmediate,
+   (XtPointer)FALSE},
+  
+  /* highlighting is normally disabled, as when Motif tries to disable
+   * highlighting, it tries to reset the color back to the parent's
+   * background (usually Motif blue).  Unfortunately, that is in a
+   * different colormap, and doesn't work too well.
+   */
+  {XmNhighlightOnEnter, XmCHighlightOnEnter, XmRBoolean, sizeof (Boolean),
+   XtOffset (GLwDrawingAreaWidget, primitive.highlight_on_enter),
+   XmRImmediate, (XtPointer) FALSE},
+  
+  {XmNhighlightThickness, XmCHighlightThickness, XmRHorizontalDimension,
+   sizeof (Dimension),
+   XtOffset (GLwDrawingAreaWidget, primitive.highlight_thickness),
+   XmRImmediate, (XtPointer) 0},
+#endif 
+  };
+
+
+/*
+** The following resources are reobtained using XtGetApplicationResources
+** in the initialize proc.
+*/
+
+/* The colormap */
+static XtResource initializeResources[] = {
+  /* reobtain the colormap with the new visual */
+  {XtNcolormap, XtCColormap, XtRColormap, sizeof(Colormap),
+   XtOffset(GLwDrawingAreaWidget, core.colormap),
+   XtRCallProc,(XtPointer) createColormap},
+  };
+
+
+/* reallocate any colors we need in the new colormap */
+  
+/* The background is obtained only if the allocateBackground resource is TRUE*/
+static XtResource backgroundResources[] = {
+#ifdef __GLX_MOTIF
+  {XmNbackground, XmCBackground,XmRPixel, 
+   sizeof(Pixel),XtOffset(GLwDrawingAreaWidget,core.background_pixel),
+   XmRString,(XtPointer)"lightgrey"},
+   /*XmRCallProc,(XtPointer)_XmBackgroundColorDefault},*/
+
+  {XmNbackgroundPixmap,XmCPixmap,XmRXmBackgroundPixmap, 
+   sizeof(Pixmap),XtOffset(GLwDrawingAreaWidget,core.background_pixmap),
+   XmRImmediate,(XtPointer)XmUNSPECIFIED_PIXMAP},
+
+#else
+  {XtNbackground,XtCBackground,XtRPixel,sizeof(Pixel),
+   XtOffset(GLwDrawingAreaWidget,core.background_pixel),
+   XtRString,(XtPointer)"lightgrey"},
+   /*XtRString,(XtPointer)"XtDefaultBackground"},*/
+
+  {XtNbackgroundPixmap, XtCPixmap, XtRPixmap, sizeof(Pixmap),
+   XtOffset(GLwDrawingAreaWidget,core.background_pixmap),
+   XtRImmediate,(XtPointer)XtUnspecifiedPixmap},
+#endif  
+  };
+
+
+
+/* The other colors such as the foreground are allocated only if
+ * allocateOtherColors are set.  These resources only exist in Motif.
+ */
+#ifdef __GLX_MOTIF
+static XtResource otherColorResources[] = {
+  {XmNforeground,XmCForeground,XmRPixel, 
+   sizeof(Pixel),XtOffset(GLwDrawingAreaWidget,primitive.foreground),
+   XmRString,(XtPointer)"lighgrey"},
+   /*XmRCallProc, (XtPointer) _XmForegroundColorDefault},*/
+
+  {XmNhighlightColor,XmCHighlightColor,XmRPixel,sizeof(Pixel),
+   XtOffset(GLwDrawingAreaWidget,primitive.highlight_color),
+   XmRString,(XtPointer)"lightgrey"},
+   /*XmRCallProc,(XtPointer)_XmHighlightColorDefault},*/
+
+  {XmNhighlightPixmap,XmCHighlightPixmap,XmRPrimHighlightPixmap,
+   sizeof(Pixmap),
+   XtOffset(GLwDrawingAreaWidget,primitive.highlight_pixmap),
+   XmRImmediate,(XtPointer)XmUNSPECIFIED_PIXMAP},
+   /*XmRCallProc,(XtPointer)_XmPrimitiveHighlightPixmapDefault},*/
+  };
+#endif
+
+
+#undef offset
+
+
+GLwDrawingAreaClassRec glwDrawingAreaClassRec = {
+  { /* core fields */
+#ifdef __GLX_MOTIF
+    /* superclass                */        (WidgetClass) &xmPrimitiveClassRec,
+    /* class_name                */        "GLwMDrawingArea",
+#else /* not __GLX_MOTIF */
+    /* superclass                */        (WidgetClass) &widgetClassRec,
+    /* class_name                */        "GLwDrawingArea",
+#endif /* __GLX_MOTIF */
+    /* widget_size               */        sizeof(GLwDrawingAreaRec),
+    /* class_initialize          */        NULL,
+    /* class_part_initialize     */        NULL,
+    /* class_inited              */        FALSE,
+    /* initialize                */        (XtInitProc) Initialize,
+    /* initialize_hook           */        NULL,
+    /* realize                   */        Realize,
+    /* actions                   */        actions,
+    /* num_actions               */        XtNumber(actions),
+    /* resources                 */        resources,
+    /* num_resources             */        XtNumber(resources),
+    /* xrm_class                 */        NULLQUARK,
+    /* compress_motion           */        TRUE,
+    /* compress_exposure         */        TRUE,
+    /* compress_enterleave       */        TRUE,
+    /* visible_interest          */        TRUE,
+    /* destroy                   */        (XtWidgetProc) Destroy,
+    /* resize                    */        (XtWidgetProc) Resize,
+    /* expose                    */        (XtExposeProc) Redraw,
+    /* set_values                */        NULL,
+    /* set_values_hook           */        NULL,
+    /* set_values_almost         */        XtInheritSetValuesAlmost,
+    /* get_values_hook           */        NULL,
+    /* accept_focus              */        NULL,
+    /* version                   */        XtVersion,
+    /* callback_private          */        NULL,
+    /* tm_table                  */        defaultTranslations,
+    /* query_geometry            */        XtInheritQueryGeometry,
+    /* display_accelerator       */        XtInheritDisplayAccelerator,
+    /* extension                 */        NULL
+  },
+#ifdef __GLX_MOTIF /* primitive resources */
+  {
+    /* border_highlight          */        XmInheritBorderHighlight,
+    /* border_unhighlight        */        XmInheritBorderUnhighlight,
+    /* translations              */        XtInheritTranslations,
+    /* arm_and_activate          */        NULL,
+    /* get_resources             */        NULL,
+    /* num get_resources         */        0,
+    /* extension                 */        NULL,                                
+  }
+#endif 
+  };
+
+WidgetClass glwDrawingAreaWidgetClass=(WidgetClass)&glwDrawingAreaClassRec;
+
+
+
+static void error(Widget w,char* string){
+  char buf[100];
+#ifdef __GLX_MOTIF
+  sprintf(buf,"GLwMDrawingArea: %s\n",string);
+#else
+  sprintf(buf,"GLwDrawingArea: %s\n",string);
+#endif
+  XtAppError(XtWidgetToApplicationContext(w),buf);
+  }
+
+
+static void warning(Widget w,char* string){
+  char buf[100];
+#ifdef __GLX_MOTIF
+  sprintf (buf, "GLwMDraw: %s\n", string);
+#else
+  sprintf (buf, "GLwDraw: %s\n", string);
+#endif
+  XtAppWarning(XtWidgetToApplicationContext(w), buf);
+  }
+
+
+
+/* Initialize the attribList based on the attributes */
+static void createAttribList(GLwDrawingAreaWidget w){
+  int *ptr;
+  w->glwDrawingArea.attribList = (int*)XtMalloc(ATTRIBLIST_SIZE*sizeof(int));
+  if(!w->glwDrawingArea.attribList){
+    error((Widget)w,"Unable to allocate attribute list");
+    }
+  ptr = w->glwDrawingArea.attribList;
+  *ptr++ = GLX_BUFFER_SIZE;
+  *ptr++ = w->glwDrawingArea.bufferSize;
+  *ptr++ = GLX_LEVEL;
+  *ptr++ = w->glwDrawingArea.level;
+  if(w->glwDrawingArea.rgba) *ptr++ = GLX_RGBA;
+  if(w->glwDrawingArea.doublebuffer) *ptr++ = GLX_DOUBLEBUFFER;
+  if(w->glwDrawingArea.stereo) *ptr++ = GLX_STEREO;
+  *ptr++ = GLX_AUX_BUFFERS;
+  *ptr++ = w->glwDrawingArea.auxBuffers;
+  *ptr++ = GLX_RED_SIZE;
+  *ptr++ = w->glwDrawingArea.redSize;
+  *ptr++ = GLX_GREEN_SIZE;
+  *ptr++ = w->glwDrawingArea.greenSize;
+  *ptr++ = GLX_BLUE_SIZE;
+  *ptr++ = w->glwDrawingArea.blueSize;
+  *ptr++ = GLX_ALPHA_SIZE;
+  *ptr++ = w->glwDrawingArea.alphaSize;
+  *ptr++ = GLX_DEPTH_SIZE;
+  *ptr++ = w->glwDrawingArea.depthSize;
+  *ptr++ = GLX_STENCIL_SIZE;
+  *ptr++ = w->glwDrawingArea.stencilSize;
+  *ptr++ = GLX_ACCUM_RED_SIZE;
+  *ptr++ = w->glwDrawingArea.accumRedSize;
+  *ptr++ = GLX_ACCUM_GREEN_SIZE;
+  *ptr++ = w->glwDrawingArea.accumGreenSize;
+  *ptr++ = GLX_ACCUM_BLUE_SIZE;
+  *ptr++ = w->glwDrawingArea.accumBlueSize;
+  *ptr++ = GLX_ACCUM_ALPHA_SIZE;
+  *ptr++ = w->glwDrawingArea.accumAlphaSize;
+  *ptr++ = None;
+  assert((ptr-w->glwDrawingArea.attribList)<ATTRIBLIST_SIZE);
+  }
+
+
+
+/* Initialize the visualInfo based on the attribute list */
+static void createVisualInfo(GLwDrawingAreaWidget w){
+  static XVisualInfo *visualInfo;
+  assert(w->glwDrawingArea.attribList);
+  w->glwDrawingArea.visualInfo=glXChooseVisual(XtDisplay(w),XScreenNumberOfScreen(XtScreen(w)),w->glwDrawingArea.attribList);
+  if(!w->glwDrawingArea.visualInfo) error((Widget)w,"requested visual not supported");
+  }
+
+
+
+/* Initialize the colormap based on the visual info.
+ * This routine maintains a cache of visual-infos to colormaps.  If two
+ * widgets share the same visual info, they share the same colormap.
+ * This function is called by the callProc of the colormap resource entry.
+ */
+static void createColormap(GLwDrawingAreaWidget w,int offset,XrmValue *value){
+  static struct cmapCache { Visual *visual; Colormap cmap; } *cmapCache;
+  static int cacheEntries=0;
+  static int cacheMalloced=0;
+  register int i;
+    
+  assert(w->glwDrawingArea.visualInfo);
+
+  /* see if we can find it in the cache */
+  for(i=0; i<cacheEntries; i++){
+    if(cmapCache[i].visual==w->glwDrawingArea.visualInfo->visual){
+      value->addr=(XtPointer)(&cmapCache[i].cmap);
+      return;
+      }
+    }
+
+  /* not in the cache, create a new entry */
+  if(cacheEntries >= cacheMalloced){
+    /* need to malloc a new one.  Since we are likely to have only a
+     * few colormaps, we allocate one the first time, and double
+     * each subsequent time.
+     */
+    if(cacheMalloced==0){
+      cacheMalloced=1;
+      cmapCache=(struct cmapCache*)XtMalloc(sizeof(struct cmapCache));
+      }
+    else{
+      cacheMalloced<<=1;
+      cmapCache=(struct cmapCache*)XtRealloc((char*)cmapCache,sizeof(struct cmapCache)*cacheMalloced);
+      }
+    }
+       
+  cmapCache[cacheEntries].cmap=XCreateColormap(XtDisplay(w),
+                                               RootWindow(XtDisplay(w),
+                                               w->glwDrawingArea.visualInfo->screen),
+                                               w->glwDrawingArea.visualInfo->visual,
+                                               AllocNone);
+  cmapCache[cacheEntries].visual=w->glwDrawingArea.visualInfo->visual;
+  value->addr=(XtPointer)(&cmapCache[cacheEntries++].cmap);
+  }
+
+
+
+static void Initialize(GLwDrawingAreaWidget req,GLwDrawingAreaWidget neww,ArgList args,Cardinal *num_args){
+
+  /* fix size */
+  if(req->core.width==0) neww->core.width=100;
+  if(req->core.height==0) neww->core.width=100;
+
+  /* create the attribute list if needed */
+  neww->glwDrawingArea.myList=FALSE;
+  if(neww->glwDrawingArea.attribList==NULL){
+    neww->glwDrawingArea.myList=TRUE;
+    createAttribList(neww);
+    }
+
+  /* Gotta have it */
+  assert(neww->glwDrawingArea.attribList);
+
+  /* determine the visual info if needed */
+  neww->glwDrawingArea.myVisual=FALSE;
+  if(neww->glwDrawingArea.visualInfo==NULL){
+    neww->glwDrawingArea.myVisual=TRUE;
+    createVisualInfo(neww);
+    }
+
+  /* Gotta have that too */
+  assert(neww->glwDrawingArea.visualInfo);
+
+  neww->core.depth=neww->glwDrawingArea.visualInfo->depth;
+
+  /* Reobtain the colormap and colors in it using XtGetApplicationResources*/
+  XtGetApplicationResources((Widget)neww,neww,initializeResources,XtNumber(initializeResources),args,*num_args);
+
+  /* obtain the color resources if appropriate */
+  if(req->glwDrawingArea.allocateBackground){
+    XtGetApplicationResources((Widget)neww,neww,backgroundResources,XtNumber(backgroundResources),args,*num_args);
+    }
+
+#ifdef __GLX_MOTIF
+  if(req->glwDrawingArea.allocateOtherColors){
+    XtGetApplicationResources((Widget)neww,neww,otherColorResources,XtNumber(otherColorResources),args,*num_args);
+    }
+#endif 
+  }
+
+
+
+static void Realize(Widget w,Mask *valueMask,XSetWindowAttributes *attributes){
+  register GLwDrawingAreaWidget glw=(GLwDrawingAreaWidget)w;
+  GLwDrawingAreaCallbackStruct cb;
+  Widget parentShell;
+  Status status;
+  Window windows[2],*windowsReturn,*windowList;
+  int countReturn,i;
+   
+  /* if we haven't requested that the background be both installed and
+   * allocated, don't install it.
+   */
+  if(!(glw->glwDrawingArea.installBackground && glw->glwDrawingArea.allocateBackground)){
+    *valueMask&=~CWBackPixel;
+    }
+ 
+  XtCreateWindow(w,(unsigned int)InputOutput,glw->glwDrawingArea.visualInfo->visual,*valueMask,attributes);
+
+  /* if appropriate, call XSetWMColormapWindows to install the colormap */
+  if(glw->glwDrawingArea.installColormap){
+
+    /* Get parent shell */
+    for(parentShell=XtParent(w); parentShell&&!XtIsShell(parentShell); parentShell=XtParent(parentShell));
+
+    if(parentShell && XtWindow(parentShell)){
+
+      /* check to see if there is already a property */
+      status=XGetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),&windowsReturn,&countReturn);
+            
+      /* if no property, just create one */
+      if(!status){
+        windows[0]=XtWindow(w);
+        windows[1]=XtWindow(parentShell);
+        XSetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),windows,2);
+        }
+
+      /* there was a property, add myself to the beginning */
+      else{
+        windowList=(Window *)XtMalloc((sizeof(Window))*(countReturn+1));
+        windowList[0]=XtWindow(w);
+        for(i=0; i<countReturn; i++) windowList[i+1]=windowsReturn[i];
+        XSetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),windowList,countReturn+1);
+        XtFree((char*)windowList);
+        XtFree((char*)windowsReturn);
+        }
+      }
+    else{
+      warning(w,"Could not set colormap property on parent shell");
+      }
+    }
+
+  /* Invoke callbacks */
+  cb.reason=GLwCR_GINIT;
+  cb.event=NULL;
+  cb.width=glw->core.width;
+  cb.height=glw->core.height;
+  XtCallCallbackList((Widget)glw,glw->glwDrawingArea.ginitCallback,&cb);
+  }
+
+
+
+static void Redraw(GLwDrawingAreaWidget w,XEvent *event,Region region){
+  GLwDrawingAreaCallbackStruct cb;
+  XtCallbackList cblist;
+  if(!XtIsRealized((Widget)w)) return;
+  cb.reason=GLwCR_EXPOSE;
+  cb.event=event;
+  cb.width=w->core.width;
+  cb.height=w->core.height;
+  XtCallCallbackList((Widget)w,w->glwDrawingArea.exposeCallback,&cb);
+  }
+
+
+
+static void Resize(GLwDrawingAreaWidget glw){
+  GLwDrawingAreaCallbackStruct cb;
+  if(!XtIsRealized((Widget)glw)) return;
+  cb.reason=GLwCR_RESIZE;
+  cb.event=NULL;
+  cb.width=glw->core.width;
+  cb.height=glw->core.height;
+  XtCallCallbackList((Widget)glw,glw->glwDrawingArea.resizeCallback,&cb);
+  }
+
+
+
+static void Destroy(GLwDrawingAreaWidget glw){
+  Window *windowsReturn;
+  Widget parentShell;
+  Status status;
+  int countReturn;
+  register int i;
+
+  if(glw->glwDrawingArea.myList && glw->glwDrawingArea.attribList){
+    XtFree((XtPointer)glw->glwDrawingArea.attribList);
+    }
+
+  if(glw->glwDrawingArea.myVisual && glw->glwDrawingArea.visualInfo){
+    XtFree((XtPointer)glw->glwDrawingArea.visualInfo);
+    }
+
+  /* if my colormap was installed, remove it */
+  if(glw->glwDrawingArea.installColormap){
+
+    /* Get parent shell */
+    for(parentShell=XtParent(glw); parentShell&&!XtIsShell(parentShell); parentShell=XtParent(parentShell));
+
+    if(parentShell && XtWindow(parentShell)){
+
+      /* make sure there is a property */
+      status=XGetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),&windowsReturn,&countReturn);
+            
+      /* if no property, just return.  If there was a property, continue */
+      if(status){
+
+        /* search for a match */
+        for(i=0; i<countReturn; i++){
+          if(windowsReturn[i]==XtWindow(glw)){
+
+            /* we found a match, now copy the rest down */
+            for(i++; i<countReturn; i++){ windowsReturn[i-1]=windowsReturn[i]; }
+
+            XSetWMColormapWindows(XtDisplay(parentShell),XtWindow(parentShell),windowsReturn,countReturn-1);
+            break; 
+            }
+          }
+        XtFree((char *)windowsReturn);
+        }
+      }
+    }
+  }
+
+
+
+/* Action routine for keyboard and mouse events */
+static void glwInput(GLwDrawingAreaWidget glw,XEvent *event,String *params,Cardinal *numParams){
+  GLwDrawingAreaCallbackStruct cb;
+  cb.reason=GLwCR_INPUT;
+  cb.event=event;
+  cb.width=glw->core.width;
+  cb.height=glw->core.height;
+  XtCallCallbackList((Widget)glw,glw->glwDrawingArea.inputCallback,&cb);
+  }
+
+
+#ifdef __GLX_MOTIF
+
+/* Create routine */
+Widget GLwCreateMDrawingArea(Widget parent, char *name,ArgList arglist,Cardinal argcount){
+  return XtCreateWidget(name,glwMDrawingAreaWidgetClass, parent, arglist,argcount);
+  }
+
+#endif
+
+
+#ifndef __GLX_MOTIF
+
+/* Make context current */
+void GLwDrawingAreaMakeCurrent(Widget w,GLXContext ctx){
+  glXMakeCurrent(XtDisplay(w),XtWindow(w),ctx);
+  }
+
+
+/* Swap buffers convenience function */
+void GLwDrawingAreaSwapBuffers(Widget w){
+  glXSwapBuffers(XtDisplay(w),XtWindow(w));
+  }
+
+#endif
diff --git a/src/glw/GLwDrawA.h b/src/glw/GLwDrawA.h
new file mode 100644
index 00000000000..a62852c260f
--- /dev/null
+++ b/src/glw/GLwDrawA.h
@@ -0,0 +1,195 @@
+/*
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED 
+ * Permission to use, copy, modify, and distribute this software for 
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that 
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. 
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * 
+ * US Government Users Restricted Rights 
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+#ifndef _GLwDrawA_h
+#define _GLwDrawA_h
+
+#include <GL/glx.h>
+#include <GL/gl.h>
+
+/****************************************************************
+ *
+ * GLwDrawingArea widgets
+ *
+ ****************************************************************/
+
+/* Resources:
+
+ Name		     Class		RepType		Default Value
+ ----		     -----		-------		-------------
+ attribList	     AttribList		int *		NULL
+ visualInfo	     VisualInfo		VisualInfo	NULL
+ installColormap     InstallColormap	Boolean		TRUE
+ allocateBackground  AllocateColors	Boolean		FALSE
+ allocateOtherColors AllocateColors	Boolean		FALSE
+ installBackground   InstallBackground	Boolean		TRUE
+ exposeCallback      Callback		Pointer		NULL
+ ginitCallback       Callback		Pointer		NULL
+ inputCallback       Callback		Pointer		NULL
+ resizeCallback      Callback		Pointer		NULL
+
+*** The following resources all correspond to the GLX configuration
+*** attributes and are used to create the attribList if it is NULL
+ bufferSize	     BufferSize		int		0
+ level		     Level		int		0
+ rgba		     Rgba		Boolean		FALSE
+ doublebuffer	     Doublebuffer	Boolean		FALSE
+ stereo		     Stereo		Boolean		FALSE
+ auxBuffers	     AuxBuffers		int		0
+ redSize	     ColorSize		int		1
+ greenSize	     ColorSize		int		1
+ blueSize	     ColorSize		int		1
+ alphaSize	     AlphaSize		int		0
+ depthSize	     DepthSize		int		0
+ stencilSize	     StencilSize	int		0
+ accumRedSize	     AccumColorSize	int		0
+ accumGreenSize	     AccumColorSize	int		0
+ accumBlueSize	     AccumColorSize	int		0
+ accumAlphaSize	     AccumAlphaSize	int		0
+*/
+
+#define GLwNattribList		"attribList"
+#define GLwCAttribList		"AttribList"
+#define GLwNvisualInfo		"visualInfo"
+#define GLwCVisualInfo		"VisualInfo"
+#define GLwRVisualInfo		"VisualInfo"
+
+#define GLwNinstallColormap	"installColormap"
+#define GLwCInstallColormap	"InstallColormap"
+#define GLwNallocateBackground	"allocateBackground"
+#define GLwNallocateOtherColors	"allocateOtherColors"
+#define GLwCAllocateColors	"AllocateColors"
+#define GLwNinstallBackground	"installBackground"
+#define GLwCInstallBackground	"InstallBackground"
+
+#define GLwCCallback		"Callback"
+#define GLwNexposeCallback	"exposeCallback"
+#define GLwNginitCallback	"ginitCallback"
+#define GLwNresizeCallback	"resizeCallback"
+#define GLwNinputCallback	"inputCallback"
+
+#define GLwNbufferSize		"bufferSize"
+#define GLwCBufferSize		"BufferSize"
+#define GLwNlevel		"level"
+#define GLwCLevel		"Level"
+#define GLwNrgba		"rgba"
+#define GLwCRgba		"Rgba"
+#define GLwNdoublebuffer	"doublebuffer"
+#define GLwCDoublebuffer	"Doublebuffer"
+#define GLwNstereo		"stereo"
+#define GLwCStereo		"Stereo"
+#define GLwNauxBuffers		"auxBuffers"
+#define GLwCAuxBuffers		"AuxBuffers"
+#define GLwNredSize		"redSize"
+#define GLwNgreenSize		"greenSize"
+#define GLwNblueSize		"blueSize"
+#define GLwCColorSize		"ColorSize"
+#define GLwNalphaSize		"alphaSize"
+#define GLwCAlphaSize		"AlphaSize"
+#define GLwNdepthSize		"depthSize"
+#define GLwCDepthSize		"DepthSize"
+#define GLwNstencilSize		"stencilSize"
+#define GLwCStencilSize		"StencilSize"
+#define GLwNaccumRedSize	"accumRedSize"
+#define GLwNaccumGreenSize	"accumGreenSize"
+#define GLwNaccumBlueSize	"accumBlueSize"
+#define GLwCAccumColorSize	"AccumColorSize"
+#define GLwNaccumAlphaSize	"accumAlphaSize"
+#define GLwCAccumAlphaSize	"AccumAlphaSize"
+
+#ifdef __GLX_MOTIF
+
+typedef struct _GLwMDrawingAreaClassRec	*GLwMDrawingAreaWidgetClass;
+typedef struct _GLwMDrawingAreaRec	*GLwMDrawingAreaWidget;
+
+extern WidgetClass glwMDrawingAreaWidgetClass;
+
+
+#else 
+
+typedef struct _GLwDrawingAreaClassRec	*GLwDrawingAreaWidgetClass;
+typedef struct _GLwDrawingAreaRec	*GLwDrawingAreaWidget;
+
+extern WidgetClass glwDrawingAreaWidgetClass;
+
+
+#endif
+
+
+/* Callback reasons */
+#ifdef __GLX_MOTIF
+#define GLwCR_EXPOSE	XmCR_EXPOSE
+#define GLwCR_RESIZE	XmCR_RESIZE
+#define GLwCR_INPUT	XmCR_INPUT
+#else 
+/* The same values as Motif, but don't use Motif constants */
+#define GLwCR_EXPOSE	38
+#define GLwCR_RESIZE	39
+#define GLwCR_INPUT	40
+#endif
+
+#define GLwCR_GINIT	32135	/* Arbitrary number that should neverr clash */
+
+typedef struct 
+  {
+  int       reason;
+  XEvent   *event;
+  Dimension width,height;
+  } 
+  GLwDrawingAreaCallbackStruct;
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+/* front ends to glXMakeCurrent and glXSwapBuffers */
+extern void GLwDrawingAreaMakeCurrent(Widget w,GLXContext ctx);
+extern void GLwDrawingAreaSwapBuffers(Widget w);
+
+#ifdef __GLX_MOTIF
+#ifdef _NO_PROTO
+extern Widget GLwCreateMDrawingArea();
+#else
+extern Widget GLwCreateMDrawingArea(Widget parent,char *name,ArgList arglist,Cardinal argcount);
+#endif
+#endif 
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
+
+#endif
diff --git a/src/glw/GLwDrawAP.h b/src/glw/GLwDrawAP.h
new file mode 100644
index 00000000000..f1217019541
--- /dev/null
+++ b/src/glw/GLwDrawAP.h
@@ -0,0 +1,130 @@
+/*
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED 
+ * Permission to use, copy, modify, and distribute this software for 
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that 
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. 
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * 
+ * US Government Users Restricted Rights 
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+#ifndef _GLwDrawAP_h
+#define _GLwDrawAP_h
+
+
+/* MOTIF */
+#ifdef __GLX_MOTIF
+#include "GLwMDrawA.h"
+#else
+#include "GLwDrawA.h"
+#endif
+
+typedef struct _GLwDrawingAreaClassPart {
+  caddr_t extension;
+  } GLwDrawingAreaClassPart;
+
+
+#ifdef __GLX_MOTIF
+typedef struct _GLwMDrawingAreaClassRec {
+  CoreClassPart               core_class;
+  XmPrimitiveClassPart        primitive_class;
+  GLwDrawingAreaClassPart     glwDrawingArea_class;
+  } GLwMDrawingAreaClassRec;
+
+
+extern GLwMDrawingAreaClassRec glwMDrawingAreaClassRec;
+
+
+/* XT */
+#else 
+
+typedef struct _GLwDrawingAreaClassRec {
+  CoreClassPart               core_class;
+  GLwDrawingAreaClassPart     glwDrawingArea_class;
+  } GLwDrawingAreaClassRec;
+
+extern GLwDrawingAreaClassRec glwDrawingAreaClassRec;
+
+
+#endif 
+
+
+
+typedef struct {
+  /* resources */
+  int *                attribList;
+  XVisualInfo *        visualInfo;
+  Boolean              myList;                /* TRUE if we malloced the attribList*/
+  Boolean              myVisual;        /* TRUE if we created the visualInfo*/
+  Boolean              installColormap;
+  Boolean              allocateBackground;
+  Boolean              allocateOtherColors;
+  Boolean              installBackground;
+  XtCallbackList       ginitCallback;
+  XtCallbackList       resizeCallback;
+  XtCallbackList       exposeCallback;
+  XtCallbackList       inputCallback;
+  /* specific attributes; add as we get new attributes */
+  int                  bufferSize;
+  int                  level;
+  Boolean              rgba;
+  Boolean              doublebuffer;
+  Boolean              stereo;
+  int                  auxBuffers;
+  int                  redSize;
+  int                  greenSize;
+  int                  blueSize;
+  int                  alphaSize;
+  int                  depthSize;
+  int                  stencilSize;
+  int                  accumRedSize;
+  int                  accumGreenSize;
+  int                  accumBlueSize;
+  int                  accumAlphaSize;
+  } GLwDrawingAreaPart;
+
+#ifdef __GLX_MOTIF
+
+typedef struct _GLwMDrawingAreaRec {
+  CorePart             core;
+  XmPrimitivePart      primitive;
+  GLwDrawingAreaPart   glwDrawingArea;
+  } GLwMDrawingAreaRec;
+
+#else 
+
+typedef struct _GLwDrawingAreaRec {
+  CorePart             core;
+  GLwDrawingAreaPart   glwDrawingArea;
+  } GLwDrawingAreaRec;
+
+#endif 
+
+#endif
diff --git a/src/glw/GLwMDrawA.c b/src/glw/GLwMDrawA.c
new file mode 100644
index 00000000000..bdefe92a6d0
--- /dev/null
+++ b/src/glw/GLwMDrawA.c
@@ -0,0 +1,41 @@
+/*
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED 
+ * Permission to use, copy, modify, and distribute this software for 
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that 
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. 
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * 
+ * US Government Users Restricted Rights 
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+#ifndef __GLX_MOTIF
+#define __GLX_MOTIF 1
+#endif
+#include "GLwDrawA.c"
diff --git a/src/glw/GLwMDrawA.h b/src/glw/GLwMDrawA.h
new file mode 100644
index 00000000000..2e245890410
--- /dev/null
+++ b/src/glw/GLwMDrawA.h
@@ -0,0 +1,41 @@
+/*
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED 
+ * Permission to use, copy, modify, and distribute this software for 
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that 
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. 
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * 
+ * US Government Users Restricted Rights 
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+#ifndef __GLX_MOTIF
+#define __GLX_MOTIF 1
+#endif
+#include "GLwDrawA.h"
diff --git a/src/glw/GLwMDrawAP.h b/src/glw/GLwMDrawAP.h
new file mode 100644
index 00000000000..a0a689bb996
--- /dev/null
+++ b/src/glw/GLwMDrawAP.h
@@ -0,0 +1,41 @@
+/*
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED 
+ * Permission to use, copy, modify, and distribute this software for 
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that 
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. 
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * 
+ * US Government Users Restricted Rights 
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+#ifndef __GLX_MOTIF
+#define __GLX_MOTIF 1
+#endif
+#include "GLwDrawAP.h"
diff --git a/src/glw/Makefile b/src/glw/Makefile
new file mode 100644
index 00000000000..af55a1bf38f
--- /dev/null
+++ b/src/glw/Makefile
@@ -0,0 +1,59 @@
+# Makefile for OpenGL widgets
+
+# NOTE: widget code is from SGI.  See any of the .c or .h files for the
+# complete copyright.  Mesa's GNU copyright DOES NOT apply to this widget
+# code.
+
+
+##### MACROS #####
+
+VPATH = RCS
+
+INCDIRS = -I../include -I/usr/include/Motif1.2 -I/usr/X11R6/include
+LIBDIR = ../lib
+
+SOURCES = GLwDrawA.c GLwMDrawA.c
+
+
+OBJECTS = $(SOURCES:.c=.o)
+
+
+
+##### RULES #####
+
+.c.o:
+	$(CC) -c $(INCDIRS) $(CFLAGS) $<
+
+
+
+##### TARGETS #####
+
+default:
+	@echo "Specify a target configuration"
+
+clean:
+	-rm *.o *~
+
+# The name of the library file comes from Make-config
+#XXX GLW_LIB = libGLw.a
+
+targets: $(LIBDIR)/$(GLW_LIB)
+
+
+# Make the library
+$(LIBDIR)/$(GLW_LIB): $(OBJECTS)
+	$(MAKELIB) $(GLW_LIB) $(MAJOR) $(MINOR) $(OBJECTS)
+	mv $(GLW_LIB)* $(LIBDIR)
+
+include ../Make-config
+
+include depend
+
+
+
+#
+# Run 'make depend' to update the dependencies if you change what's included
+# by any source file.
+# 
+dep: $(SOURCES)
+	makedepend -fdepend -Y -I../include $(SOURCES)
diff --git a/src/glw/README b/src/glw/README
new file mode 100644
index 00000000000..545f8b2a4c6
--- /dev/null
+++ b/src/glw/README
@@ -0,0 +1,56 @@
+
+
+                           widgets README file
+
+
+This directory contains the source code for SGI's OpenGL Xt/Motif widgets,
+slightly modified by Jeroen van der Zijp to work better with Mesa.
+
+To compile the widget code (producing lib/libGLw.a) cd to the widgets/
+directory and type 'make <config>' where <config> is the system configuration
+you used to compile Mesa.  This hasn't been tested on many systems so
+let us know if you have trouble.
+
+If you want to make a Linux ELF shared lib instead of the non-shared .a
+file see the notes in the Makefile.
+
+
+These files are NOT covered by Mesa's GNU copyright.  The real copyright
+is as follows.
+
+
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED 
+ * Permission to use, copy, modify, and distribute this software for 
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that 
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. 
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * 
+ * US Government Users Restricted Rights 
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States.  Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
diff --git a/src/glw/boilerplate.c b/src/glw/boilerplate.c
new file mode 100644
index 00000000000..c53a3fa7356
--- /dev/null
+++ b/src/glw/boilerplate.c
@@ -0,0 +1,451 @@
+/*
+
+                                BOILERPLATE
+
+   To get started with mixed model programming with Motif and OpenGL, this
+   boilerplate `application' might help get you started.
+
+   This program honors two environment variables:
+
+      SETVISUAL <id>    Makes the application use the indicated visual,
+                        instead of the one chosen by glxChooseVisual.
+
+      SAMEVISUAL        Make the application use the same visual for the
+                        GUI as for the 3D GL Widget.
+
+   The basic idea is to minimize colormap `flash' on systems with only one
+   hardware colormap, especially when focus shifts between several
+   of the application's windows, e.g. the about box.
+
+   If you have suggestions for improvements, please mail to:
+
+
+      Jeroen van der Zijp  <[email protected]>
+
+
+   Feel free to turn this into a useful program!!
+
+*/
+
+
+/*
+
+    This code is hereby placed under GNU GENERAL PUBLIC LICENSE.
+    Copyright (C) 1996 Jeroen van der Zijp <[email protected]>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+/* Include the kitchen sink */
+#include <stdio.h>
+#include <stdlib.h>
+#include <X11/Intrinsic.h>
+#include <X11/StringDefs.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
+#include <Xm/Xm.h>
+#include <Xm/MainW.h>
+#include <Xm/RowColumn.h>
+#include <Xm/PushB.h>
+#include <Xm/CascadeB.h>
+#include <Xm/BulletinB.h>
+#include <Xm/DialogS.h>
+#include <Xm/Frame.h>
+#include <Xm/MessageB.h>
+#include <Xm/Form.h>
+#include <Xm/Separator.h>
+#include <Xm/MwmUtil.h>
+
+/* Now some good stuff */
+#include <GLwMDrawA.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <GL/glx.h>
+
+
+/* Stuff */
+Display      *display;
+Visual       *gui_visual;
+Colormap      gui_colormap;
+Colormap      gl_colormap;
+XVisualInfo  *gl_visualinfo;
+XtAppContext  app_context;
+Widget        toplevel;
+Widget        mainwindow;
+Widget        menubar;
+Widget        mainform;
+Widget        mainframe;
+Widget        glwidget;
+Widget        button;
+Widget        separator;
+GLXContext    glx_context;
+
+#ifndef __cplusplus
+#define c_class class
+#endif
+
+/* Requested attributes; fix as you see fit */
+static int glxConfig[]={
+  GLX_RGBA,
+  GLX_DOUBLEBUFFER,
+  GLX_DEPTH_SIZE,   16,
+  GLX_RED_SIZE,     1,
+  GLX_GREEN_SIZE,   1,
+  GLX_BLUE_SIZE,    1,
+  None
+  };
+
+
+/* Forwards */
+static void exposeCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs);
+static void initCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs);
+static void resizeCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs);
+static void inputCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs);
+static void byeCB(Widget w,XtPointer client_data,XtPointer call_data);
+static void aboutCB(Widget w,XtPointer client_data,XtPointer call_data);
+static char* showvisualclass(int cls);
+
+
+
+/* Sample application */
+int main(int argc, char *argv[]){
+  char *thevisual;
+  XVisualInfo vi;
+  int nvisinfos,visid,n;
+  Arg args[30];
+  Widget pane,cascade,but;
+
+  /*
+  ** Initialize toolkit
+  ** We do *not* use XtAppInitialize as we want to figure visual and
+  ** colormap BEFORE we create the top level shell!!!
+  */
+  XtToolkitInitialize();
+
+  /* Make application context */
+  app_context=XtCreateApplicationContext();
+
+  /* Try open display */
+  display=XtOpenDisplay(app_context,NULL,"boilerPlate","BoilerPlate",NULL,0,&argc,argv);
+
+  /* Report failure */
+  if(!display){
+    fprintf(stderr,"Unable to open the specified display.\n");
+    fprintf(stderr,"Set your `DISPLAY' environment variable properly or\n");
+    fprintf(stderr,"use the `xhost' command to authorize access to the display.\n");
+    exit(1);
+    }
+
+  /* Check for extension; for Mesa, this is always cool */
+  if(!glXQueryExtension(display,NULL,NULL)){
+    fprintf(stderr,"The specified display does not support the OpenGL extension\n");
+    exit(1);
+    }
+
+  /* Init with default visual and colormap */
+  gui_visual=DefaultVisual(display,0);
+  gui_colormap=DefaultColormap(display,0);
+  gl_colormap=DefaultColormap(display,0);
+
+  /* User insists on a specific visual */
+  if((thevisual=getenv("SETVISUAL"))!=NULL){
+    if(sscanf(thevisual,"%x",&visid)==1){
+      vi.visualid=visid;
+      gl_visualinfo=XGetVisualInfo(display,VisualIDMask,&vi,&nvisinfos);
+      }
+    else{
+      fprintf(stderr,"Please set the `SETVISUAL' variable in hexadecimal\n");
+      fprintf(stderr,"Use one of the Visual ID's reported by `xdpyinfo'\n");
+      exit(1);
+      }
+    }
+
+  /* Find visual the regular way */
+  else{
+    gl_visualinfo=glXChooseVisual(display,DefaultScreen(display),glxConfig);
+    }
+
+  /* Make sure we have a visual */
+  if(!gl_visualinfo){
+    fprintf(stderr,"Unable to obtain visual for graphics\n");
+    exit(1);
+    }
+
+  /* Show what visual is being used */
+  fprintf(stderr,"Using the following visual:\n");
+  fprintf(stderr,"  visualid: %lx\n",gl_visualinfo->visualid);
+  fprintf(stderr,"     depth: %d\n",gl_visualinfo->depth);
+  fprintf(stderr,"    screen: %d\n",gl_visualinfo->screen);
+  fprintf(stderr,"  bits/rgb: %d\n",gl_visualinfo->bits_per_rgb);
+  fprintf(stderr,"     class: %s\n",showvisualclass(gl_visualinfo->c_class));
+
+  /*
+  ** If not using default visual, we need a colormap for this visual.
+  ** Yes, the GL widget can allocate one itself, but we want to make
+  ** sure the GUI and the 3D have the same one (if hardware does not
+  ** allow more than one simultaneously).
+  ** This prevents nasty flashing when the window with the 3D widget
+  ** looses the focus.
+  */
+  if(gl_visualinfo->visual!=DefaultVisual(display,0)){
+    fprintf(stderr,"Making another colormap\n");
+    gl_colormap=XCreateColormap(display,
+                                RootWindow(display,0),
+                                gl_visualinfo->visual,
+                                AllocNone);
+    if(!gl_colormap){
+      fprintf(stderr,"Unable to create private colormap\n");
+      exit(1);
+      }
+    }
+
+  /*
+  ** Use common visual for GUI and GL?
+  ** Maybe you can invoke some hardware interrogation function and
+  ** see if more than one hardware map is supported.  For the purpose
+  ** of this demo, we'll use an environment variable instead.
+  */
+  if(getenv("SAMEVISUAL")!=NULL){
+    gui_visual=gl_visualinfo->visual;
+    gui_colormap=gl_colormap;
+    }
+
+  fprintf(stderr,"GUI uses visual: %lx\n",XVisualIDFromVisual(gui_visual));
+
+  /* Create application shell, finally */
+  n=0;
+  XtSetArg(args[n],XmNvisual,gui_visual); n++;  	/* Plug in that visual */
+  XtSetArg(args[n],XmNcolormap,gui_colormap); n++;	/* And that colormap */
+  toplevel=XtAppCreateShell("boilerPlate","BoilerPlate",
+                            applicationShellWidgetClass,display,args,n);
+
+
+  /* Main window */
+  n=0;
+  mainwindow=XmCreateMainWindow(toplevel,"window",args,n);
+  XtManageChild(mainwindow);
+
+  /* Make a menu */
+  n=0;
+  XtSetArg(args[n],XmNmarginWidth,0); n++;
+  XtSetArg(args[n],XmNmarginHeight,0); n++;
+  menubar=XmCreateMenuBar(mainwindow,"menubar",args,2);
+  XtManageChild(menubar);
+
+  n=0;
+  pane=XmCreatePulldownMenu(menubar,"pane",args,n);
+  n=0;
+  but=XmCreatePushButton(pane,"Open",args,n);
+  XtManageChild(but);
+  but=XmCreatePushButton(pane,"Save",args,n);
+  XtManageChild(but);
+  but=XmCreatePushButton(pane,"Save As",args,n);
+  XtManageChild(but);
+  but=XmCreatePushButton(pane,"Quit",args,n);
+  XtAddCallback(but,XmNactivateCallback,byeCB,(XtPointer)NULL);
+  XtManageChild(but);
+  XtSetArg(args[0],XmNsubMenuId,pane);
+  cascade=XmCreateCascadeButton(menubar,"File",args,1);
+  XtManageChild(cascade);
+
+  n=0;
+  pane=XmCreatePulldownMenu(menubar,"pane",args,n);
+  n=0;
+  but=XmCreatePushButton(pane,"About",args,n);
+  XtAddCallback(but,XmNactivateCallback,aboutCB,(XtPointer)NULL);
+  XtManageChild(but);
+  XtSetArg(args[0],XmNsubMenuId,pane);
+  cascade=XmCreateCascadeButton(menubar,"Help",args,1);
+  XtManageChild(cascade);
+  XtVaSetValues(menubar,XmNmenuHelpWidget,cascade,NULL);
+
+  /* Main window form */
+  n=0;
+  XtSetArg(args[n],XmNmarginWidth,5); n++;
+  XtSetArg(args[n],XmNmarginHeight,5); n++;
+  mainform=XmCreateForm(mainwindow,"mainForm",args,n);
+  XtManageChild(mainform);
+
+  /* Some nice button */
+  n=0;
+  XtSetArg(args[n],XmNbottomAttachment,XmATTACH_FORM); n++;
+  XtSetArg(args[n],XmNrightAttachment,XmATTACH_FORM); n++;
+  button=XmCreatePushButton(mainform,"Bye",args,n);
+  XtAddCallback(button,XmNactivateCallback,byeCB,(XtPointer)NULL);
+  XtManageChild(button);
+
+  n=0;
+  XtSetArg(args[n],XmNleftAttachment,XmATTACH_FORM); n++;
+  XtSetArg(args[n],XmNrightAttachment,XmATTACH_FORM); n++;
+  XtSetArg(args[n],XmNbottomAttachment,XmATTACH_WIDGET); n++;
+  XtSetArg(args[n],XmNbottomWidget,button); n++;
+  XtSetArg(args[n],XmNshadowType,XmSHADOW_ETCHED_IN); n++;
+  separator=XmCreateSeparator(mainform,"separator",args,n);
+  XtManageChild(separator);
+
+  /* Main window frame */
+  n = 0;
+  XtSetArg(args[n],XmNleftAttachment,XmATTACH_FORM); n++;
+  XtSetArg(args[n],XmNrightAttachment,XmATTACH_FORM); n++;
+  XtSetArg(args[n],XmNtopAttachment,XmATTACH_FORM); n++;
+  XtSetArg(args[n],XmNbottomAttachment,XmATTACH_WIDGET); n++;
+  XtSetArg(args[n],XmNbottomWidget,separator); n++;
+  XtSetArg(args[n],XmNshadowType,XmSHADOW_IN); n++;
+  mainframe = XmCreateFrame(mainform,"mainFrame",args,n);
+  XtManageChild(mainframe);
+
+  /* GL drawing area */
+  n = 0;
+  XtSetArg(args[n],XmNcolormap,gl_colormap); n++;
+  XtSetArg(args[n],GLwNvisualInfo,gl_visualinfo); n++;
+  XtSetArg(args[n],GLwNinstallColormap,True); n++;
+  XtSetArg(args[n],XmNtraversalOn,True); n++;
+  XtSetArg(args[n],XmNwidth,400); n++;
+  XtSetArg(args[n],XmNheight,300); n++;
+  glwidget = GLwCreateMDrawingArea(mainframe,"glWidget",args,n);
+  XtAddCallback(glwidget,GLwNexposeCallback,(XtCallbackProc)exposeCB,(XtPointer)NULL);
+  XtAddCallback(glwidget,GLwNresizeCallback,(XtCallbackProc)resizeCB,(XtPointer)NULL);
+  XtAddCallback(glwidget,GLwNginitCallback,(XtCallbackProc)initCB,(XtPointer)NULL);
+  XtAddCallback(glwidget,GLwNinputCallback,(XtCallbackProc)inputCB,(XtPointer)NULL);
+  XtManageChild(glwidget);
+
+  /* Set into main window */
+  XmMainWindowSetAreas(mainwindow,menubar,NULL,NULL,NULL,mainform);
+  XtRealizeWidget(toplevel);
+
+  /* Loop until were done */
+  XtAppMainLoop(app_context);
+  return 0;
+  }
+
+
+/* Show visual class */
+static char* showvisualclass(int cls){
+  if(cls==TrueColor) return "TrueColor";
+  if(cls==DirectColor) return "DirectColor";
+  if(cls==PseudoColor) return "PseudoColor";
+  if(cls==StaticColor) return "StaticColor";
+  if(cls==GrayScale) return "GrayScale";
+  if(cls==StaticGray) return "StaticGray";
+  return "Unknown";
+  }
+
+
+static void exposeCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs){
+  GLwDrawingAreaMakeCurrent(glwidget,glx_context);
+
+  glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT);
+  glMatrixMode(GL_PROJECTION);
+
+  glLoadIdentity();
+  glOrtho(-1.0,1.0,-1.0,1.0,0.0,1.0);
+
+  glMatrixMode(GL_MODELVIEW);
+
+  glLoadIdentity();
+
+  glColor3f(1.0,0.0,0.0);
+  glBegin(GL_LINE_STRIP);
+  glVertex3f(-1.0,-1.0,0.0);
+  glVertex3f( 1.0, 1.0,0.0);
+  glEnd();
+  glXSwapBuffers(display,XtWindow(glwidget));
+  }
+
+
+/* Initialize widget */
+static void initCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs){
+
+  /* First, create context. We prefer direct rendering */
+  glx_context=glXCreateContext(display,gl_visualinfo,0,TRUE);
+  if(!glx_context){
+    fprintf(stderr,"Unable to create gl context\n");
+    exit(1);
+    }
+
+  /* Make it current */
+  GLwDrawingAreaMakeCurrent(glwidget,glx_context);
+
+  /* Set a viewport */
+  glViewport(0,0,cbs->width,cbs->height);
+
+  /* You might want to do a lot more here ... */
+  glEnable(GL_DEPTH_TEST);
+  glDepthFunc(GL_LEQUAL);
+  glClearColor(1.0,1.0,1.0,1.0);
+  glClearDepth(1.0);
+
+
+  }
+
+
+/* Widget changed size, so adjust txform */
+static void resizeCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs){
+  GLwDrawingAreaMakeCurrent(glwidget,glx_context);
+  glViewport(0,0,cbs->width,cbs->height);
+
+  /* blablabla */
+  }
+
+
+/* Boilerplate event handling */
+static void inputCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs){
+  switch(cbs->event->type){
+    case ButtonPress:
+      switch(cbs->event->xbutton.button){
+        case Button1: fprintf(stderr,"Pressed 1\n"); break;
+        case Button2: fprintf(stderr,"Pressed 2\n"); break;
+        case Button3: fprintf(stderr,"Pressed 3\n"); break;
+        }
+      break;
+    case ButtonRelease:
+      switch(cbs->event->xbutton.button){
+        case Button1: fprintf(stderr,"Released 1\n"); break;
+        case Button2: fprintf(stderr,"Released 2\n"); break;
+        case Button3: fprintf(stderr,"Released 3\n"); break;
+        }
+      break;
+    case MotionNotify:
+      fprintf(stderr,"Moved mouse to (%d %d)\n",
+              cbs->event->xbutton.x,
+              cbs->event->xbutton.y);
+      break;
+    }
+  }
+
+
+/* Hasta la vista, baby */
+static void byeCB(Widget w,XtPointer client_data,XtPointer call_data){
+  exit(0);
+  }
+
+
+/* Pop informative panel */
+static void aboutCB(Widget w,XtPointer client_data,XtPointer call_data){
+  Arg args[10];
+  XmString str;
+  Widget box;
+  str=XmStringCreateLtoR("Boilerplate Mixed Model Programming Example\n\n   (C) 1996 Jeroen van der Zijp \n\n    [email protected]",XmSTRING_DEFAULT_CHARSET);
+  XtSetArg(args[0],XmNnoResize,True);
+  XtSetArg(args[1],XmNautoUnmanage,True);
+  XtSetArg(args[2],XmNmessageString,str);
+  XtSetArg(args[3],XmNdefaultPosition,False);
+  box=XmCreateInformationDialog(toplevel,"About Boilerplate",args,4);
+  XtManageChild(box);
+  XtUnmanageChild(XmMessageBoxGetChild(box,XmDIALOG_HELP_BUTTON));
+  XtUnmanageChild(XmMessageBoxGetChild(box,XmDIALOG_CANCEL_BUTTON));
+  XmStringFree(str);
+  }
diff --git a/src/glw/depend b/src/glw/depend
new file mode 100644
index 00000000000..e0c23de53d4
--- /dev/null
+++ b/src/glw/depend
@@ -0,0 +1,6 @@
+# DO NOT DELETE
+
+GLwDrawA.o: ../include/GL/glx.h ../include/GL/gl.h ../include/GL/xmesa.h
+GLwDrawA.o: GLwDrawAP.h GLwDrawA.h
+GLwMDrawA.o: GLwDrawA.c ../include/GL/glx.h ../include/GL/gl.h
+GLwMDrawA.o: ../include/GL/xmesa.h GLwDrawAP.h GLwDrawA.h GLwMDrawAP.h