From deacce35a44fe95baffe942a8acae0da327de619 Mon Sep 17 00:00:00 2001
From: lecoanet
Date: Tue, 12 Apr 2005 09:05:41 +0000
Subject: Switched to the native GLU tesselator instead of the buitlin.

---
 generic/tkZinc.c | 37 ++++++++++++++++++-------------------
 1 file changed, 18 insertions(+), 19 deletions(-)

(limited to 'generic/tkZinc.c')

diff --git a/generic/tkZinc.c b/generic/tkZinc.c
index 03cd6d9..f9ff6a7 100644
--- a/generic/tkZinc.c
+++ b/generic/tkZinc.c
@@ -59,8 +59,8 @@ static const char * const zinc_version = "zinc-version-" VERSION;
 #ifndef _WIN32
 #include "perfos.h"
 #endif
-#include "glu.h"
 
+#include <GL/glu.h>
 #include <ctype.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -8752,7 +8752,11 @@ Redisplay(ClientData client_data)	/* Information about the widget. */
   }
 }
 
-static void
+#ifndef _WIN32
+#define CALLBACK
+#endif
+
+static void CALLBACK
 ZnTessBegin(GLenum	type,
 	    void	*data)
 {
@@ -8779,7 +8783,7 @@ ZnTessBegin(GLenum	type,
 	 //(type == GL_LINE_LOOP) ? "LINE LOOP" : "");
 }
 
-static void
+static void CALLBACK
 ZnTessVertex(void	*vertex_data,
 	     void	*data)
 {
@@ -8789,14 +8793,14 @@ ZnTessVertex(void	*vertex_data,
 
   p.x = ((GLdouble *) vertex_data)[0];
   p.y = ((GLdouble *) vertex_data)[1];
-  /*printf("Sommet en %g %g\n", p.x, p.y);*/
+  //printf("Sommet en %g %g\n", p.x, p.y);
   size = ZnListSize(ZnWorkPoints);
   if ((ZnTesselator.type == GL_TRIANGLES) && (size == 3)) {
     tristrips->strips[tristrips->num_strips-1].num_points = size;
     tristrips->strips[tristrips->num_strips-1].points = ZnMalloc(size * sizeof(ZnPoint));
     memcpy(tristrips->strips[tristrips->num_strips-1].points,
 	   ZnListArray(ZnWorkPoints), size * sizeof(ZnPoint));
-    /*printf("Fin de fragment intermediaire %d, num points: %d\n", tristrips->num_strips-1, size);*/
+    //printf("Fin de fragment intermediaire %d, num points: %d\n", tristrips->num_strips-1, size);
     /* Allocate a new fragment */
     ZnListEmpty(ZnWorkPoints);
     tristrips->num_strips++;
@@ -8807,7 +8811,7 @@ ZnTessVertex(void	*vertex_data,
   ZnListAdd(ZnWorkPoints, &p, ZnListTail);
 }
 
-static void
+static void CALLBACK
 ZnTessEnd(void	*data)
 {
   ZnPoly	*outlines = data;
@@ -8833,10 +8837,10 @@ ZnTessEnd(void	*data)
     memcpy(tristrips->strips[num-1].points,
 	   ZnListArray(ZnWorkPoints), size * sizeof(ZnPoint));
   }
-  /*printf("Fin de fragment %d, num points: %d\n", num, size);*/
+  //printf("Fin de fragment %d, num points: %d\n", num, size);
 }
 
-static void
+static void CALLBACK
 ZnTessCombine(GLdouble	coords[3],
 	      void	*vertex_data[4],
 	      GLfloat	weight[4],
@@ -8856,7 +8860,7 @@ ZnTessCombine(GLdouble	coords[3],
     //cdata->v[0], cdata->v[1]);
 }
 
-static void
+static void CALLBACK
 ZnTessError(GLenum	errno,
 	    void	*data)
 {
@@ -8933,16 +8937,11 @@ InitZinc(Tcl_Interp *interp) {
   ZnTesselator.tess = gluNewTess();
   ZnTesselator.combine_list = NULL;
 	ZnTesselator.combine_length = 0;
-  gluTessCallback(ZnTesselator.tess, GLU_TESS_BEGIN_DATA,
-		  (_GLUfuncptr) ZnTessBegin);
-  gluTessCallback(ZnTesselator.tess, GLU_TESS_VERTEX_DATA,
-		  (_GLUfuncptr) ZnTessVertex);
-  gluTessCallback(ZnTesselator.tess, GLU_TESS_END_DATA,
-		  (_GLUfuncptr) ZnTessEnd);
-  gluTessCallback(ZnTesselator.tess, GLU_TESS_COMBINE_DATA,
-		  (_GLUfuncptr) ZnTessCombine);
-  gluTessCallback(ZnTesselator.tess, GLU_TESS_ERROR_DATA,
-		  (_GLUfuncptr) ZnTessError);
+  gluTessCallback(ZnTesselator.tess, GLU_TESS_BEGIN_DATA, ZnTessBegin);
+  gluTessCallback(ZnTesselator.tess, GLU_TESS_VERTEX_DATA, ZnTessVertex);
+  gluTessCallback(ZnTesselator.tess, GLU_TESS_END_DATA, ZnTessEnd);
+  gluTessCallback(ZnTesselator.tess, GLU_TESS_COMBINE_DATA, ZnTessCombine);
+  gluTessCallback(ZnTesselator.tess, GLU_TESS_ERROR_DATA, ZnTessError);
   gluTessNormal(ZnTesselator.tess, 0.0, 0.0, -1.0);
 
   /*
-- 
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