[SCM] Gmsh packaging. Gmsh is an automatic 3D finite element mesh generator. branch, experimental, updated. upstream/2.5.0.dfsg-29-g998c80a

Anton Gladky gladky.anton at gmail.com
Fri Jun 3 18:15:21 UTC 2011


The following commit has been merged in the experimental branch:
commit e46bffcb2d7cdb0fe940f7a4396f6f35dab61dc5
Author: Anton Gladky <gladky.anton at gmail.com>
Date:   Fri Jun 3 19:52:26 2011 +0200

    Link with packaged gl2ps instead of shipped with the source.

diff --git a/debian/patches/delete_gl2ps_from_source.patch b/debian/patches/delete_gl2ps_from_source.patch
new file mode 100644
index 0000000..a65cfda
--- /dev/null
+++ b/debian/patches/delete_gl2ps_from_source.patch
@@ -0,0 +1,6250 @@
+Description: delete gl2ps.* and use packaged version.
+Author: Anton Gladky <gladky.anton at gmail.com>
+
+--- a/Graphics/gl2ps.cpp
++++ /dev/null
+@@ -1,6031 +0,0 @@
+-/*
+- * GL2PS, an OpenGL to PostScript Printing Library
+- * Copyright (C) 1999-2009 C. Geuzaine
+- *
+- * This program is free software; you can redistribute it and/or
+- * modify it under the terms of either:
+- *
+- * a) the GNU Library General Public License as published by the Free
+- * Software Foundation, either version 2 of the License, or (at your
+- * option) any later version; or
+- *
+- * b) the GL2PS License as published by Christophe Geuzaine, 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 either
+- * the GNU Library General Public License or the GL2PS License for
+- * more details.
+- *
+- * You should have received a copy of the GNU Library General Public
+- * License along with this library in the file named "COPYING.LGPL";
+- * if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+- * Cambridge, MA 02139, USA.
+- *
+- * You should have received a copy of the GL2PS License with this
+- * library in the file named "COPYING.GL2PS"; if not, I will be glad
+- * to provide one.
+- *
+- * For the latest info about gl2ps and a full list of contributors,
+- * see http://www.geuz.org/gl2ps/.
+- *
+- * Please report all bugs and problems to <gl2ps at geuz.org>.
+- */
+-
+-#include "gl2ps.h"
+-
+-#include <math.h>
+-#include <string.h>
+-#include <sys/types.h>
+-#include <stdarg.h>
+-#include <time.h>
+-#include <float.h>
+-
+-#if defined(GL2PS_HAVE_ZLIB)
+-#include <zlib.h>
+-#endif
+-
+-#if defined(GL2PS_HAVE_LIBPNG)
+-#include <png.h>
+-#endif
+-
+-/********************************************************************* 
+- *
+- * Private definitions, data structures and prototypes
+- *
+- *********************************************************************/
+-
+-/* Magic numbers (assuming that the order of magnitude of window
+-   coordinates is 10^3) */
+-
+-#define GL2PS_EPSILON       5.0e-3F
+-#define GL2PS_ZSCALE        1000.0F
+-#define GL2PS_ZOFFSET       5.0e-2F
+-#define GL2PS_ZOFFSET_LARGE 20.0F
+-#define GL2PS_ZERO(arg)     (fabs(arg) < 1.e-20)
+-
+-/* Primitive types */
+-
+-#define GL2PS_NO_TYPE          -1
+-#define GL2PS_TEXT             1
+-#define GL2PS_POINT            2
+-#define GL2PS_LINE             3
+-#define GL2PS_QUADRANGLE       4
+-#define GL2PS_TRIANGLE         5
+-#define GL2PS_PIXMAP           6
+-#define GL2PS_IMAGEMAP         7
+-#define GL2PS_IMAGEMAP_WRITTEN 8
+-#define GL2PS_IMAGEMAP_VISIBLE 9
+-#define GL2PS_SPECIAL          10
+-
+-/* BSP tree primitive comparison */
+-
+-#define GL2PS_COINCIDENT  1
+-#define GL2PS_IN_FRONT_OF 2
+-#define GL2PS_IN_BACK_OF  3
+-#define GL2PS_SPANNING    4
+-
+-/* 2D BSP tree primitive comparison */
+-
+-#define GL2PS_POINT_COINCIDENT 0
+-#define GL2PS_POINT_INFRONT    1
+-#define GL2PS_POINT_BACK       2
+-
+-/* Internal feedback buffer pass-through tokens */
+-
+-#define GL2PS_BEGIN_OFFSET_TOKEN   1
+-#define GL2PS_END_OFFSET_TOKEN     2
+-#define GL2PS_BEGIN_BOUNDARY_TOKEN 3
+-#define GL2PS_END_BOUNDARY_TOKEN   4
+-#define GL2PS_BEGIN_STIPPLE_TOKEN  5
+-#define GL2PS_END_STIPPLE_TOKEN    6
+-#define GL2PS_POINT_SIZE_TOKEN     7
+-#define GL2PS_LINE_WIDTH_TOKEN     8
+-#define GL2PS_BEGIN_BLEND_TOKEN    9
+-#define GL2PS_END_BLEND_TOKEN      10
+-#define GL2PS_SRC_BLEND_TOKEN      11
+-#define GL2PS_DST_BLEND_TOKEN      12
+-#define GL2PS_IMAGEMAP_TOKEN       13
+-#define GL2PS_DRAW_PIXELS_TOKEN    14
+-#define GL2PS_TEXT_TOKEN           15
+-
+-typedef enum {
+-  T_UNDEFINED    = -1,
+-  T_CONST_COLOR  = 1,
+-  T_VAR_COLOR    = 1<<1,
+-  T_ALPHA_1      = 1<<2,
+-  T_ALPHA_LESS_1 = 1<<3,
+-  T_VAR_ALPHA    = 1<<4
+-} GL2PS_TRIANGLE_PROPERTY;
+-
+-typedef GLfloat GL2PSxyz[3];
+-typedef GLfloat GL2PSplane[4];
+-
+-typedef struct _GL2PSbsptree2d GL2PSbsptree2d;
+-
+-struct _GL2PSbsptree2d {
+-  GL2PSplane plane;
+-  GL2PSbsptree2d *front, *back;
+-};
+-
+-typedef struct {
+-  GLint nmax, size, incr, n;
+-  char *array;
+-} GL2PSlist;
+-
+-typedef struct _GL2PSbsptree GL2PSbsptree;
+-
+-struct _GL2PSbsptree {
+-  GL2PSplane plane;
+-  GL2PSlist *primitives;
+-  GL2PSbsptree *front, *back;
+-};
+-
+-typedef struct {
+-  GL2PSxyz xyz;
+-  GL2PSrgba rgba;
+-} GL2PSvertex;
+-
+-typedef struct {
+-  GL2PSvertex vertex[3];
+-  int prop;
+-} GL2PStriangle;
+-
+-typedef struct {
+-  GLshort fontsize;
+-  char *str, *fontname;
+-  /* Note: for a 'special' string, 'alignment' holds the format
+-     (PostScript, PDF, etc.) of the special string */
+-  GLint alignment;
+-  GLfloat angle;
+-} GL2PSstring;
+-
+-typedef struct {
+-  GLsizei width, height;
+-  /* Note: for an imagemap, 'type' indicates if it has already been
+-     written to the file or not, and 'format' indicates if it is
+-     visible or not */
+-  GLenum format, type;
+-  GLfloat *pixels;
+-} GL2PSimage;
+-
+-typedef struct _GL2PSimagemap GL2PSimagemap;
+-
+-struct _GL2PSimagemap {
+-  GL2PSimage *image;
+-  GL2PSimagemap *next;
+-};
+-
+-typedef struct {
+-  GLshort type, numverts;
+-  GLushort pattern;
+-  char boundary, offset, culled;
+-  GLint factor;
+-  GLfloat width;
+-  GL2PSvertex *verts;
+-  union {
+-    GL2PSstring *text;
+-    GL2PSimage *image;
+-  } data;
+-} GL2PSprimitive;
+-
+-typedef struct {
+-#if defined(GL2PS_HAVE_ZLIB)
+-  Bytef *dest, *src, *start;
+-  uLongf destLen, srcLen;
+-#else
+-  int dummy;
+-#endif
+-} GL2PScompress;
+-
+-typedef struct{
+-  GL2PSlist* ptrlist;
+-  int gsno, fontno, imno, shno, maskshno, trgroupno;
+-  int gsobjno, fontobjno, imobjno, shobjno, maskshobjno, trgroupobjno;
+-} GL2PSpdfgroup;
+-
+-typedef struct {
+-  /* General */
+-  GLint format, sort, options, colorsize, colormode, buffersize;
+-  char *title, *producer, *filename;
+-  GLboolean boundary, blending;
+-  GLfloat *feedback, offset[2], lastlinewidth;
+-  GLint viewport[4], blendfunc[2], lastfactor;
+-  GL2PSrgba *colormap, lastrgba, threshold, bgcolor;
+-  GLushort lastpattern;
+-  GL2PSvertex lastvertex;
+-  GL2PSlist *primitives, *auxprimitives;
+-  FILE *stream;
+-  GL2PScompress *compress;
+-  GLboolean header;
+-
+-  /* BSP-specific */
+-  GLint maxbestroot;
+-
+-  /* Occlusion culling-specific */
+-  GLboolean zerosurfacearea;
+-  GL2PSbsptree2d *imagetree;
+-  GL2PSprimitive *primitivetoadd;
+-  
+-  /* PDF-specific */
+-  int streamlength;
+-  GL2PSlist *pdfprimlist, *pdfgrouplist;
+-  int *xreflist;
+-  int objects_stack; /* available objects */
+-  int extgs_stack; /* graphics state object number */
+-  int font_stack; /* font object number */
+-  int im_stack; /* image object number */
+-  int trgroupobjects_stack; /* xobject numbers */
+-  int shader_stack; /* shader object numbers */
+-  int mshader_stack; /* mask shader object numbers */
+-
+-  /* for image map list */
+-  GL2PSimagemap *imagemap_head;
+-  GL2PSimagemap *imagemap_tail;
+-} GL2PScontext;
+-
+-typedef struct {
+-  void  (*printHeader)(void);
+-  void  (*printFooter)(void);
+-  void  (*beginViewport)(GLint viewport[4]);
+-  GLint (*endViewport)(void);
+-  void  (*printPrimitive)(void *data);
+-  void  (*printFinalPrimitive)(void);
+-  const char *file_extension;
+-  const char *description;
+-} GL2PSbackend;
+-
+-/* The gl2ps context. gl2ps is not thread safe (we should create a
+-   local GL2PScontext during gl2psBeginPage) */
+-
+-static GL2PScontext *gl2ps = NULL;
+-
+-/* Need to forward-declare this one */
+-
+-static GLint gl2psPrintPrimitives(void);
+-
+-/********************************************************************* 
+- *
+- * Utility routines
+- *
+- *********************************************************************/
+-
+-static void gl2psMsg(GLint level, const char *fmt, ...)
+-{
+-  va_list args;
+-
+-  if(!(gl2ps->options & GL2PS_SILENT)){
+-    switch(level){
+-    case GL2PS_INFO : fprintf(stderr, "GL2PS info: "); break;
+-    case GL2PS_WARNING : fprintf(stderr, "GL2PS warning: "); break;
+-    case GL2PS_ERROR : fprintf(stderr, "GL2PS error: "); break;
+-    }
+-    va_start(args, fmt);
+-    vfprintf(stderr, fmt, args); 
+-    va_end(args);
+-    fprintf(stderr, "\n");
+-  }
+-  /* if(level == GL2PS_ERROR) exit(1); */
+-}
+-
+-static void *gl2psMalloc(size_t size)
+-{
+-  void *ptr;
+-
+-  if(!size) return NULL;
+-  ptr = malloc(size);
+-  if(!ptr){
+-    gl2psMsg(GL2PS_ERROR, "Couldn't allocate requested memory");
+-    return NULL;
+-  }
+-  return ptr;
+-}
+-
+-static void *gl2psRealloc(void *ptr, size_t size)
+-{
+-  if(!size) return NULL;
+-  ptr = realloc(ptr, size);
+-  if(!ptr){
+-    gl2psMsg(GL2PS_ERROR, "Couldn't reallocate requested memory");
+-    return NULL;
+-  }
+-  return ptr;
+-}
+-
+-static void gl2psFree(void *ptr)
+-{
+-  if(!ptr) return;
+-  free(ptr);
+-}
+-
+-static size_t gl2psWriteBigEndian(unsigned long data, size_t bytes)
+-{
+-  size_t i;
+-  size_t size = sizeof(unsigned long);
+-  for(i = 1; i <= bytes; ++i){
+-    fputc(0xff & (data >> (size-i) * 8), gl2ps->stream);
+-  }
+-  return bytes;
+-}
+-
+-/* zlib compression helper routines */
+-
+-#if defined(GL2PS_HAVE_ZLIB)
+-
+-static void gl2psSetupCompress(void)
+-{
+-  gl2ps->compress = (GL2PScompress*)gl2psMalloc(sizeof(GL2PScompress));
+-  gl2ps->compress->src = NULL;
+-  gl2ps->compress->start = NULL;
+-  gl2ps->compress->dest = NULL;
+-  gl2ps->compress->srcLen = 0;
+-  gl2ps->compress->destLen = 0;
+-}
+-
+-static void gl2psFreeCompress(void)
+-{
+-  if(!gl2ps->compress)
+-    return;
+-  gl2psFree(gl2ps->compress->start);
+-  gl2psFree(gl2ps->compress->dest);
+-  gl2ps->compress->src = NULL;
+-  gl2ps->compress->start = NULL;
+-  gl2ps->compress->dest = NULL;
+-  gl2ps->compress->srcLen = 0;
+-  gl2ps->compress->destLen = 0;
+-}
+-
+-static int gl2psAllocCompress(unsigned int srcsize)
+-{
+-  gl2psFreeCompress();
+-  
+-  if(!gl2ps->compress || !srcsize)
+-    return GL2PS_ERROR;
+-  
+-  gl2ps->compress->srcLen = srcsize;
+-  gl2ps->compress->destLen = (int)ceil(1.001 * gl2ps->compress->srcLen + 12);
+-  gl2ps->compress->src = (Bytef*)gl2psMalloc(gl2ps->compress->srcLen);
+-  gl2ps->compress->start = gl2ps->compress->src;
+-  gl2ps->compress->dest = (Bytef*)gl2psMalloc(gl2ps->compress->destLen);
+-  
+-  return GL2PS_SUCCESS;
+-}
+-
+-static void *gl2psReallocCompress(unsigned int srcsize)
+-{
+-  if(!gl2ps->compress || !srcsize)
+-    return NULL;
+-  
+-  if(srcsize < gl2ps->compress->srcLen)
+-    return gl2ps->compress->start;
+-  
+-  gl2ps->compress->srcLen = srcsize;
+-  gl2ps->compress->destLen = (int)ceil(1.001 * gl2ps->compress->srcLen + 12);
+-  gl2ps->compress->src = (Bytef*)gl2psRealloc(gl2ps->compress->src, 
+-                                              gl2ps->compress->srcLen);
+-  gl2ps->compress->start = gl2ps->compress->src;
+-  gl2ps->compress->dest = (Bytef*)gl2psRealloc(gl2ps->compress->dest, 
+-                                               gl2ps->compress->destLen);
+-  
+-  return gl2ps->compress->start;
+-}
+-
+-static size_t gl2psWriteBigEndianCompress(unsigned long data, size_t bytes)
+-{
+-  size_t i;
+-  size_t size = sizeof(unsigned long);
+-  for(i = 1; i <= bytes; ++i){
+-    *gl2ps->compress->src = (Bytef)(0xff & (data >> (size-i) * 8));
+-    ++gl2ps->compress->src;
+-  }
+-  return bytes;
+-}
+-
+-static int gl2psDeflate(void)
+-{
+-  /* For compatibility with older zlib versions, we use compress(...)
+-     instead of compress2(..., Z_BEST_COMPRESSION) */
+-  return compress(gl2ps->compress->dest, &gl2ps->compress->destLen, 
+-                  gl2ps->compress->start, gl2ps->compress->srcLen);  
+-}
+-
+-#endif
+-
+-static int gl2psPrintf(const char* fmt, ...)
+-{
+-  int ret;
+-  va_list args;
+-
+-#if defined(GL2PS_HAVE_ZLIB)
+-  unsigned int oldsize = 0;
+-  static char buf[1000];
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    va_start(args, fmt);
+-    ret = vsprintf(buf, fmt, args);
+-    va_end(args);
+-    oldsize = gl2ps->compress->srcLen;
+-    gl2ps->compress->start = (Bytef*)gl2psReallocCompress(oldsize + ret);
+-    memcpy(gl2ps->compress->start+oldsize, buf, ret);
+-    ret = 0;
+-  }
+-  else{
+-#endif
+-    va_start(args, fmt);
+-    ret = vfprintf(gl2ps->stream, fmt, args);
+-    va_end(args);
+-#if defined(GL2PS_HAVE_ZLIB)
+-  }
+-#endif
+-  return ret;
+-}
+-
+-static void gl2psPrintGzipHeader()
+-{
+-#if defined(GL2PS_HAVE_ZLIB)
+-  char tmp[10] = {'\x1f', '\x8b', /* magic numbers: 0x1f, 0x8b */
+-                  8, /* compression method: Z_DEFLATED */
+-                  0, /* flags */
+-                  0, 0, 0, 0, /* time */
+-                  2, /* extra flags: max compression */
+-                  '\x03'}; /* OS code: 0x03 (Unix) */
+-
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    gl2psSetupCompress();
+-    /* add the gzip file header */
+-    fwrite(tmp, 10, 1, gl2ps->stream);
+-  }
+-#endif  
+-}
+-
+-static void gl2psPrintGzipFooter()
+-{
+-#if defined(GL2PS_HAVE_ZLIB)
+-  int n;
+-  uLong crc, len;
+-  char tmp[8];
+-
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    if(Z_OK != gl2psDeflate()){
+-      gl2psMsg(GL2PS_ERROR, "Zlib deflate error");
+-    }
+-    else{
+-      /* determine the length of the header in the zlib stream */
+-      n = 2; /* CMF+FLG */
+-      if(gl2ps->compress->dest[1] & (1<<5)){
+-        n += 4; /* DICTID */
+-      }
+-      /* write the data, without the zlib header and footer */
+-      fwrite(gl2ps->compress->dest+n, gl2ps->compress->destLen-(n+4), 
+-             1, gl2ps->stream);
+-      /* add the gzip file footer */
+-      crc = crc32(0L, gl2ps->compress->start, gl2ps->compress->srcLen);
+-      for(n = 0; n < 4; ++n){
+-        tmp[n] = (char)(crc & 0xff);
+-        crc >>= 8;
+-      }
+-      len = gl2ps->compress->srcLen;
+-      for(n = 4; n < 8; ++n){
+-        tmp[n] = (char)(len & 0xff);
+-        len >>= 8;
+-      }
+-      fwrite(tmp, 8, 1, gl2ps->stream);
+-    }
+-    gl2psFreeCompress();
+-    gl2psFree(gl2ps->compress);
+-    gl2ps->compress = NULL;
+-  }
+-#endif 
+-}
+-
+-/* The list handling routines */
+-
+-static void gl2psListRealloc(GL2PSlist *list, GLint n)
+-{
+-  if(!list){
+-    gl2psMsg(GL2PS_ERROR, "Cannot reallocate NULL list");
+-    return;
+-  }
+-  if(n <= 0) return;
+-  if(!list->array){
+-    list->nmax = n;
+-    list->array = (char*)gl2psMalloc(list->nmax * list->size);
+-  }
+-  else{
+-    if(n > list->nmax){
+-      list->nmax = ((n - 1) / list->incr + 1) * list->incr;
+-      list->array = (char*)gl2psRealloc(list->array,
+-                                        list->nmax * list->size);
+-    }
+-  }
+-}
+-
+-static GL2PSlist *gl2psListCreate(GLint n, GLint incr, GLint size)
+-{
+-  GL2PSlist *list;
+-
+-  if(n < 0) n = 0;
+-  if(incr <= 0) incr = 1;
+-  list = (GL2PSlist*)gl2psMalloc(sizeof(GL2PSlist));
+-  list->nmax = 0;
+-  list->incr = incr;
+-  list->size = size;
+-  list->n = 0;
+-  list->array = NULL;
+-  gl2psListRealloc(list, n);
+-  return list;
+-}
+-
+-static void gl2psListReset(GL2PSlist *list)
+-{
+-  if(!list) return;
+-  list->n = 0;
+-}
+-
+-static void gl2psListDelete(GL2PSlist *list)
+-{
+-  if(!list) return;  
+-  gl2psFree(list->array);
+-  gl2psFree(list);
+-}
+-
+-static void gl2psListAdd(GL2PSlist *list, void *data)
+-{
+-  if(!list){
+-    gl2psMsg(GL2PS_ERROR, "Cannot add into unallocated list");
+-    return;
+-  }
+-  list->n++;
+-  gl2psListRealloc(list, list->n);
+-  memcpy(&list->array[(list->n - 1) * list->size], data, list->size);
+-}
+-
+-static int gl2psListNbr(GL2PSlist *list)
+-{
+-  if(!list)
+-    return 0;
+-  return list->n;
+-}
+-
+-static void *gl2psListPointer(GL2PSlist *list, GLint index)
+-{
+-  if(!list){
+-    gl2psMsg(GL2PS_ERROR, "Cannot point into unallocated list");
+-    return NULL;
+-  }
+-  if((index < 0) || (index >= list->n)){
+-    gl2psMsg(GL2PS_ERROR, "Wrong list index in gl2psListPointer");
+-    return NULL;
+-  }
+-  return &list->array[index * list->size];
+-}
+-
+-static void gl2psListSort(GL2PSlist *list,
+-                          int (*fcmp)(const void *a, const void *b))
+-{
+-  if(!list)
+-    return;
+-  qsort(list->array, list->n, list->size, fcmp);
+-}
+-
+-static void gl2psListAction(GL2PSlist *list, void (*action)(void *data))
+-{
+-  GLint i;
+-
+-  for(i = 0; i < gl2psListNbr(list); i++){
+-    (*action)(gl2psListPointer(list, i));
+-  }
+-}
+-
+-static void gl2psListActionInverse(GL2PSlist *list, void (*action)(void *data))
+-{
+-  GLint i;
+-
+-  for(i = gl2psListNbr(list); i > 0; i--){
+-    (*action)(gl2psListPointer(list, i-1));
+-  }
+-}
+-
+-#if defined(GL2PS_HAVE_LIBPNG)
+-
+-static void gl2psListRead(GL2PSlist *list, int index, void *data)
+-{
+-  if((index < 0) || (index >= list->n))
+-    gl2psMsg(GL2PS_ERROR, "Wrong list index in gl2psListRead");
+-  memcpy(data, &list->array[index * list->size], list->size);
+-}
+-
+-static void gl2psEncodeBase64Block(unsigned char in[3], unsigned char out[4], int len)
+-{
+-  static const char cb64[] = 
+-    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+-
+-  out[0] = cb64[ in[0] >> 2 ];
+-  out[1] = cb64[ ((in[0] & 0x03) << 4) | ((in[1] & 0xf0) >> 4) ];
+-  out[2] = (len > 1) ? cb64[ ((in[1] & 0x0f) << 2) | ((in[2] & 0xc0) >> 6) ] : '=';
+-  out[3] = (len > 2) ? cb64[ in[2] & 0x3f ] : '=';
+-}
+-
+-static void gl2psListEncodeBase64(GL2PSlist *list)
+-{
+-  unsigned char *buffer, in[3], out[4];
+-  int i, n, index, len;
+-
+-  n = list->n * list->size;
+-  buffer = (unsigned char*)gl2psMalloc(n * sizeof(unsigned char));
+-  memcpy(buffer, list->array, n * sizeof(unsigned char));
+-  gl2psListReset(list);
+-
+-  index = 0;
+-  while(index < n) {
+-    len = 0;
+-    for(i = 0; i < 3; i++) {
+-      if(index < n){
+-        in[i] = buffer[index];
+-        len++;
+-      }
+-      else{
+-        in[i] = 0;
+-      }
+-      index++;
+-    }
+-    if(len) {
+-      gl2psEncodeBase64Block(in, out, len);
+-      for(i = 0; i < 4; i++)
+-        gl2psListAdd(list, &out[i]);
+-    }
+-  }
+-  gl2psFree(buffer);
+-}
+-
+-#endif
+-
+-/* Helpers for rgba colors */
+-
+-static GLboolean gl2psSameColor(GL2PSrgba rgba1, GL2PSrgba rgba2)
+-{
+-  if(!GL2PS_ZERO(rgba1[0] - rgba2[0]) ||
+-     !GL2PS_ZERO(rgba1[1] - rgba2[1]) ||
+-     !GL2PS_ZERO(rgba1[2] - rgba2[2]))
+-    return GL_FALSE;
+-  return GL_TRUE;
+-}
+-  
+-static GLboolean gl2psVertsSameColor(const GL2PSprimitive *prim)
+-{
+-  int i;
+-
+-  for(i = 1; i < prim->numverts; i++){
+-    if(!gl2psSameColor(prim->verts[0].rgba, prim->verts[i].rgba)){
+-      return GL_FALSE;
+-    }
+-  }
+-  return GL_TRUE;
+-}
+-
+-static GLboolean gl2psSameColorThreshold(int n, GL2PSrgba rgba[],
+-                                         GL2PSrgba threshold)
+-{
+-  int i;
+-
+-  if(n < 2) return GL_TRUE;
+-  
+-  for(i = 1; i < n; i++){
+-    if(fabs(rgba[0][0] - rgba[i][0]) > threshold[0] ||
+-       fabs(rgba[0][1] - rgba[i][1]) > threshold[1] ||
+-       fabs(rgba[0][2] - rgba[i][2]) > threshold[2])
+-      return GL_FALSE;
+-  }
+-  
+-  return GL_TRUE;
+-}
+-
+-static void gl2psSetLastColor(GL2PSrgba rgba)
+-{
+-  int i;        
+-  for(i = 0; i < 3; ++i){
+-    gl2ps->lastrgba[i] = rgba[i];
+-  }
+-}
+-
+-static GLfloat gl2psGetRGB(GL2PSimage *im, GLuint x, GLuint y,
+-                           GLfloat *red, GLfloat *green, GLfloat *blue)
+-{
+-  
+-  GLsizei width = im->width;
+-  GLsizei height = im->height;
+-  GLfloat *pixels = im->pixels;
+-  GLfloat *pimag;
+-
+-  /* OpenGL image is from down to up, PS image is up to down */  
+-  switch(im->format){
+-  case GL_RGBA:
+-    pimag = pixels + 4 * (width * (height - 1 - y) + x);
+-    break;
+-  case GL_RGB:
+-  default:
+-    pimag = pixels + 3 * (width * (height - 1 - y) + x);
+-    break;
+-  }
+-  *red = *pimag; pimag++;
+-  *green = *pimag; pimag++;
+-  *blue = *pimag; pimag++;
+-
+-  return (im->format == GL_RGBA) ? *pimag : 1.0F;
+-}
+-
+-/* Helper routines for pixmaps */
+-
+-static GL2PSimage *gl2psCopyPixmap(GL2PSimage *im)
+-{
+-  int size;
+-  GL2PSimage *image = (GL2PSimage*)gl2psMalloc(sizeof(GL2PSimage));
+-  
+-  image->width = im->width;
+-  image->height = im->height;
+-  image->format = im->format;
+-  image->type = im->type;
+-
+-  switch(image->format){
+-  case GL_RGBA:
+-    size = image->height * image->width * 4 * sizeof(GLfloat);
+-    break;
+-  case GL_RGB:
+-  default:
+-    size = image->height * image->width * 3 * sizeof(GLfloat);
+-    break;
+-  }
+-
+-  image->pixels = (GLfloat*)gl2psMalloc(size);
+-  memcpy(image->pixels, im->pixels, size);
+-  
+-  return image;
+-}
+-
+-static void gl2psFreePixmap(GL2PSimage *im)
+-{
+-  if(!im)
+-    return;
+-  gl2psFree(im->pixels);
+-  gl2psFree(im);
+-}
+-
+-#if defined(GL2PS_HAVE_LIBPNG)
+-
+-#if !defined(png_jmpbuf)
+-#  define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
+-#endif
+-
+-static void gl2psUserWritePNG(png_structp png_ptr, png_bytep data, png_size_t length)
+-{
+-  unsigned int i;
+-  GL2PSlist *png = (GL2PSlist*)png_get_io_ptr(png_ptr);
+-  for(i = 0; i < length; i++) 
+-    gl2psListAdd(png, &data[i]);
+-}
+-
+-static void gl2psUserFlushPNG(png_structp png_ptr)
+-{
+-}
+-
+-static void gl2psConvertPixmapToPNG(GL2PSimage *pixmap, GL2PSlist *png)
+-{
+-  png_structp png_ptr;
+-  png_infop info_ptr;
+-  unsigned char *row_data;
+-  GLfloat dr, dg, db;
+-  int row, col;
+-
+-  if(!(png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL)))
+-    return;
+-  
+-  if(!(info_ptr = png_create_info_struct(png_ptr))){
+-    png_destroy_write_struct(&png_ptr, NULL);
+-    return;
+-  }
+-  
+-  if(setjmp(png_jmpbuf(png_ptr))) {
+-    png_destroy_write_struct(&png_ptr, &info_ptr);
+-    return;
+-  }
+-  
+-  png_set_write_fn(png_ptr, (void *)png, gl2psUserWritePNG, gl2psUserFlushPNG);
+-  png_set_compression_level(png_ptr, Z_DEFAULT_COMPRESSION);
+-  png_set_IHDR(png_ptr, info_ptr, pixmap->width, pixmap->height, 8, 
+-               PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, 
+-               PNG_FILTER_TYPE_BASE);
+-  png_write_info(png_ptr, info_ptr);
+-
+-  row_data = (unsigned char*)gl2psMalloc(3 * pixmap->width * sizeof(unsigned char));
+-  for(row = 0; row < pixmap->height; row++){
+-    for(col = 0; col < pixmap->width; col++){
+-      gl2psGetRGB(pixmap, col, row, &dr, &dg, &db);
+-      row_data[3*col] = (unsigned char)(255. * dr);
+-      row_data[3*col+1] = (unsigned char)(255. * dg);
+-      row_data[3*col+2] = (unsigned char)(255. * db);
+-    }
+-    png_write_row(png_ptr, (png_bytep)row_data);
+-  }
+-  gl2psFree(row_data);
+-
+-  png_write_end(png_ptr, info_ptr);
+-  png_destroy_write_struct(&png_ptr, &info_ptr);
+-}
+-
+-#endif
+-
+-/* Helper routines for text strings */
+-
+-static GLint gl2psAddText(GLint type, const char *str, const char *fontname, 
+-                          GLshort fontsize, GLint alignment, GLfloat angle)
+-{
+-  GLfloat pos[4];
+-  GL2PSprimitive *prim;
+-  GLboolean valid;
+-
+-  if(!gl2ps || !str || !fontname) return GL2PS_UNINITIALIZED;
+-
+-  if(gl2ps->options & GL2PS_NO_TEXT) return GL2PS_SUCCESS;
+-
+-  glGetBooleanv(GL_CURRENT_RASTER_POSITION_VALID, &valid);
+-  if(GL_FALSE == valid) return GL2PS_SUCCESS; /* the primitive is culled */
+-
+-  glGetFloatv(GL_CURRENT_RASTER_POSITION, pos);
+-
+-  prim = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-  prim->type = type;
+-  prim->boundary = 0;
+-  prim->numverts = 1;
+-  prim->verts = (GL2PSvertex*)gl2psMalloc(sizeof(GL2PSvertex));
+-  prim->verts[0].xyz[0] = pos[0];
+-  prim->verts[0].xyz[1] = pos[1];
+-  prim->verts[0].xyz[2] = pos[2];
+-  prim->culled = 0;
+-  prim->offset = 0;
+-  prim->pattern = 0;
+-  prim->factor = 0;
+-  prim->width = 1;
+-  glGetFloatv(GL_CURRENT_RASTER_COLOR, prim->verts[0].rgba);
+-  prim->data.text = (GL2PSstring*)gl2psMalloc(sizeof(GL2PSstring));
+-  prim->data.text->str = (char*)gl2psMalloc((strlen(str)+1)*sizeof(char));
+-  strcpy(prim->data.text->str, str); 
+-  prim->data.text->fontname = (char*)gl2psMalloc((strlen(fontname)+1)*sizeof(char));
+-  strcpy(prim->data.text->fontname, fontname);
+-  prim->data.text->fontsize = fontsize;
+-  prim->data.text->alignment = alignment;
+-  prim->data.text->angle = angle;
+-
+-  gl2psListAdd(gl2ps->auxprimitives, &prim);
+-  glPassThrough(GL2PS_TEXT_TOKEN);
+-    
+-  return GL2PS_SUCCESS;
+-}
+-
+-static GL2PSstring *gl2psCopyText(GL2PSstring *t)
+-{
+-  GL2PSstring *text = (GL2PSstring*)gl2psMalloc(sizeof(GL2PSstring));
+-  text->str = (char*)gl2psMalloc((strlen(t->str)+1)*sizeof(char));
+-  strcpy(text->str, t->str); 
+-  text->fontname = (char*)gl2psMalloc((strlen(t->fontname)+1)*sizeof(char));
+-  strcpy(text->fontname, t->fontname);
+-  text->fontsize = t->fontsize;
+-  text->alignment = t->alignment;
+-  text->angle = t->angle;
+-  
+-  return text;
+-}
+-
+-static void gl2psFreeText(GL2PSstring *text)
+-{
+-  if(!text)
+-    return;
+-  gl2psFree(text->str);
+-  gl2psFree(text->fontname);
+-  gl2psFree(text);
+-}
+-
+-/* Helpers for blending modes */
+-
+-static GLboolean gl2psSupportedBlendMode(GLenum sfactor, GLenum dfactor)
+-{
+-  /* returns TRUE if gl2ps supports the argument combination: only two
+-     blending modes have been implemented so far */
+-
+-  if( (sfactor == GL_SRC_ALPHA && dfactor == GL_ONE_MINUS_SRC_ALPHA) || 
+-      (sfactor == GL_ONE && dfactor == GL_ZERO) )
+-    return GL_TRUE;
+-  return GL_FALSE;
+-}
+-
+-static void gl2psAdaptVertexForBlending(GL2PSvertex *v)
+-{
+-  /* Transforms vertex depending on the actual blending function -
+-     currently the vertex v is considered as source vertex and his
+-     alpha value is changed to 1.0 if source blending GL_ONE is
+-     active. This might be extended in the future */
+-
+-  if(!v || !gl2ps)
+-    return;
+-
+-  if(gl2ps->options & GL2PS_NO_BLENDING || !gl2ps->blending){
+-    v->rgba[3] = 1.0F;
+-    return;
+-  }
+-  
+-  switch(gl2ps->blendfunc[0]){
+-  case GL_ONE:
+-    v->rgba[3] = 1.0F;
+-    break;
+-  default:
+-    break;
+-  }
+-}
+-
+-static void gl2psAssignTriangleProperties(GL2PStriangle *t)
+-{
+-  /* int i; */
+-
+-  t->prop = T_VAR_COLOR;
+-
+-  /* Uncommenting the following lines activates an even more fine
+-     grained distinction between triangle types - please don't delete,
+-     a remarkable amount of PDF handling code inside this file depends
+-     on it if activated */
+-  /*
+-  t->prop = T_CONST_COLOR;    
+-  for(i = 0; i < 3; ++i){
+-    if(!GL2PS_ZERO(t->vertex[0].rgba[i] - t->vertex[1].rgba[i]) || 
+-       !GL2PS_ZERO(t->vertex[1].rgba[i] - t->vertex[2].rgba[i])){
+-      t->prop = T_VAR_COLOR;
+-      break;
+-    }
+-  }
+-  */
+-
+-  if(!GL2PS_ZERO(t->vertex[0].rgba[3] - t->vertex[1].rgba[3]) || 
+-     !GL2PS_ZERO(t->vertex[1].rgba[3] - t->vertex[2].rgba[3])){
+-    t->prop |= T_VAR_ALPHA;
+-  }
+-  else{
+-    if(t->vertex[0].rgba[3] < 1)
+-      t->prop |= T_ALPHA_LESS_1;
+-    else
+-      t->prop |= T_ALPHA_1;
+-  }
+-}
+-
+-static void gl2psFillTriangleFromPrimitive(GL2PStriangle *t, GL2PSprimitive *p,
+-                                           GLboolean assignprops)
+-{
+-  t->vertex[0] = p->verts[0];
+-  t->vertex[1] = p->verts[1];
+-  t->vertex[2] = p->verts[2];
+-  if(GL_TRUE == assignprops)
+-    gl2psAssignTriangleProperties(t);
+-}
+-
+-static void gl2psInitTriangle(GL2PStriangle *t)
+-{
+-  int i;
+-  GL2PSvertex vertex = { {-1.0F, -1.0F, -1.0F}, {-1.0F, -1.0F, -1.0F, -1.0F} };
+-  for(i = 0; i < 3; i++)
+-    t->vertex[i] = vertex;
+-  t->prop = T_UNDEFINED;
+-}
+-
+-/* Miscellaneous helper routines */
+-
+-static GL2PSprimitive *gl2psCopyPrimitive(GL2PSprimitive *p)
+-{
+-  GL2PSprimitive *prim;
+-
+-  if(!p){
+-    gl2psMsg(GL2PS_ERROR, "Trying to copy an empty primitive");
+-    return NULL;
+-  }
+-
+-  prim = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-  
+-  prim->type = p->type;
+-  prim->numverts = p->numverts;
+-  prim->boundary = p->boundary;
+-  prim->offset = p->offset;
+-  prim->pattern = p->pattern;
+-  prim->factor = p->factor;
+-  prim->culled = p->culled;
+-  prim->width = p->width;
+-  prim->verts = (GL2PSvertex*)gl2psMalloc(p->numverts*sizeof(GL2PSvertex));
+-  memcpy(prim->verts, p->verts, p->numverts * sizeof(GL2PSvertex));
+-
+-  switch(prim->type){
+-  case GL2PS_PIXMAP :
+-    prim->data.image = gl2psCopyPixmap(p->data.image);
+-    break;
+-  case GL2PS_TEXT :
+-  case GL2PS_SPECIAL :
+-    prim->data.text = gl2psCopyText(p->data.text);
+-    break;
+-  default:
+-    break;
+-  }
+-
+-  return prim;
+-}
+-
+-static GLboolean gl2psSamePosition(GL2PSxyz p1, GL2PSxyz p2)
+-{
+-  if(!GL2PS_ZERO(p1[0] - p2[0]) ||
+-     !GL2PS_ZERO(p1[1] - p2[1]) ||
+-     !GL2PS_ZERO(p1[2] - p2[2]))
+-    return GL_FALSE;
+-  return GL_TRUE;
+-}
+-
+-/********************************************************************* 
+- *
+- * 3D sorting routines 
+- *
+- *********************************************************************/
+-
+-static GLfloat gl2psComparePointPlane(GL2PSxyz point, GL2PSplane plane)
+-{
+-  return (plane[0] * point[0] + 
+-          plane[1] * point[1] + 
+-          plane[2] * point[2] + 
+-          plane[3]);
+-}
+-
+-static GLfloat gl2psPsca(GLfloat *a, GLfloat *b)
+-{
+-  return (a[0]*b[0] + a[1]*b[1] + a[2]*b[2]);
+-}
+-
+-static void gl2psPvec(GLfloat *a, GLfloat *b, GLfloat *c)
+-{
+-  c[0] = a[1]*b[2] - a[2]*b[1];
+-  c[1] = a[2]*b[0] - a[0]*b[2];
+-  c[2] = a[0]*b[1] - a[1]*b[0];
+-}
+-
+-static GLfloat gl2psNorm(GLfloat *a)
+-{
+-  return (GLfloat)sqrt(a[0]*a[0] + a[1]*a[1] + a[2]*a[2]);
+-}
+-
+-static void gl2psGetNormal(GLfloat *a, GLfloat *b, GLfloat *c)
+-{
+-  GLfloat norm;
+-
+-  gl2psPvec(a, b, c);
+-  if(!GL2PS_ZERO(norm = gl2psNorm(c))){
+-    c[0] = c[0] / norm;
+-    c[1] = c[1] / norm;
+-    c[2] = c[2] / norm;
+-  }
+-  else{
+-    /* The plane is still wrong despite our tests in gl2psGetPlane.
+-       Let's return a dummy value for now (this is a hack: we should
+-       do more intelligent tests in GetPlane) */
+-    c[0] = c[1] = 0.0F;
+-    c[2] = 1.0F;
+-  }
+-}
+-
+-static void gl2psGetPlane(GL2PSprimitive *prim, GL2PSplane plane)
+-{
+-  GL2PSxyz v = {0.0F, 0.0F, 0.0F}, w = {0.0F, 0.0F, 0.0F};
+-
+-  switch(prim->type){
+-  case GL2PS_TRIANGLE :
+-  case GL2PS_QUADRANGLE :
+-    v[0] = prim->verts[1].xyz[0] - prim->verts[0].xyz[0]; 
+-    v[1] = prim->verts[1].xyz[1] - prim->verts[0].xyz[1]; 
+-    v[2] = prim->verts[1].xyz[2] - prim->verts[0].xyz[2]; 
+-    w[0] = prim->verts[2].xyz[0] - prim->verts[0].xyz[0]; 
+-    w[1] = prim->verts[2].xyz[1] - prim->verts[0].xyz[1]; 
+-    w[2] = prim->verts[2].xyz[2] - prim->verts[0].xyz[2]; 
+-    if((GL2PS_ZERO(v[0]) && GL2PS_ZERO(v[1]) && GL2PS_ZERO(v[2])) || 
+-       (GL2PS_ZERO(w[0]) && GL2PS_ZERO(w[1]) && GL2PS_ZERO(w[2]))){
+-      plane[0] = plane[1] = 0.0F;
+-      plane[2] = 1.0F;
+-      plane[3] = -prim->verts[0].xyz[2];
+-    }
+-    else{
+-      gl2psGetNormal(v, w, plane);
+-      plane[3] = 
+-        - plane[0] * prim->verts[0].xyz[0] 
+-        - plane[1] * prim->verts[0].xyz[1] 
+-        - plane[2] * prim->verts[0].xyz[2];
+-    }
+-    break;
+-  case GL2PS_LINE :
+-    v[0] = prim->verts[1].xyz[0] - prim->verts[0].xyz[0]; 
+-    v[1] = prim->verts[1].xyz[1] - prim->verts[0].xyz[1]; 
+-    v[2] = prim->verts[1].xyz[2] - prim->verts[0].xyz[2]; 
+-    if(GL2PS_ZERO(v[0]) && GL2PS_ZERO(v[1]) && GL2PS_ZERO(v[2])){
+-      plane[0] = plane[1] = 0.0F;
+-      plane[2] = 1.0F;
+-      plane[3] = -prim->verts[0].xyz[2];
+-    }
+-    else{
+-      if(GL2PS_ZERO(v[0]))      w[0] = 1.0F;
+-      else if(GL2PS_ZERO(v[1])) w[1] = 1.0F;
+-      else                      w[2] = 1.0F;
+-      gl2psGetNormal(v, w, plane);
+-      plane[3] = 
+-        - plane[0] * prim->verts[0].xyz[0] 
+-        - plane[1] * prim->verts[0].xyz[1] 
+-        - plane[2] * prim->verts[0].xyz[2];
+-    }
+-    break;
+-  case GL2PS_POINT :
+-  case GL2PS_PIXMAP :
+-  case GL2PS_TEXT :
+-  case GL2PS_SPECIAL :
+-  case GL2PS_IMAGEMAP:
+-    plane[0] = plane[1] = 0.0F;
+-    plane[2] = 1.0F;
+-    plane[3] = -prim->verts[0].xyz[2];
+-    break;
+-  default :
+-    gl2psMsg(GL2PS_ERROR, "Unknown primitive type in BSP tree");
+-    plane[0] = plane[1] = plane[3] = 0.0F;
+-    plane[2] = 1.0F;
+-    break;
+-  }
+-}
+-
+-static void gl2psCutEdge(GL2PSvertex *a, GL2PSvertex *b, GL2PSplane plane,
+-                         GL2PSvertex *c)
+-{
+-  GL2PSxyz v;
+-  GLfloat sect, psca;
+-
+-  v[0] = b->xyz[0] - a->xyz[0];
+-  v[1] = b->xyz[1] - a->xyz[1];
+-  v[2] = b->xyz[2] - a->xyz[2];
+-
+-  if(!GL2PS_ZERO(psca = gl2psPsca(plane, v)))
+-    sect = -gl2psComparePointPlane(a->xyz, plane) / psca;
+-  else
+-    sect = 0.0F;
+-  
+-  c->xyz[0] = a->xyz[0] + v[0] * sect;
+-  c->xyz[1] = a->xyz[1] + v[1] * sect;
+-  c->xyz[2] = a->xyz[2] + v[2] * sect;
+-  
+-  c->rgba[0] = (1 - sect) * a->rgba[0] + sect * b->rgba[0];
+-  c->rgba[1] = (1 - sect) * a->rgba[1] + sect * b->rgba[1];
+-  c->rgba[2] = (1 - sect) * a->rgba[2] + sect * b->rgba[2];
+-  c->rgba[3] = (1 - sect) * a->rgba[3] + sect * b->rgba[3];
+-}
+-
+-static void gl2psCreateSplitPrimitive(GL2PSprimitive *parent, GL2PSplane plane,
+-                                      GL2PSprimitive *child, GLshort numverts,
+-                                      GLshort *index0, GLshort *index1)
+-{
+-  GLshort i;
+-
+-  if(parent->type == GL2PS_IMAGEMAP){
+-    child->type = GL2PS_IMAGEMAP;
+-    child->data.image = parent->data.image;
+-  }
+-  else{
+-    if(numverts > 4){
+-      gl2psMsg(GL2PS_WARNING, "%d vertices in polygon", numverts);
+-      numverts = 4;
+-    }
+-    switch(numverts){
+-    case 1 : child->type = GL2PS_POINT; break; 
+-    case 2 : child->type = GL2PS_LINE; break; 
+-    case 3 : child->type = GL2PS_TRIANGLE; break; 
+-    case 4 : child->type = GL2PS_QUADRANGLE; break;    
+-    default: child->type = GL2PS_NO_TYPE; break;
+-    }
+-  }
+-
+-  child->boundary = 0; /* FIXME: not done! */
+-  child->culled = parent->culled;
+-  child->offset = parent->offset;
+-  child->pattern = parent->pattern;
+-  child->factor = parent->factor;
+-  child->width = parent->width;
+-  child->numverts = numverts;
+-  child->verts = (GL2PSvertex*)gl2psMalloc(numverts * sizeof(GL2PSvertex));
+-
+-  for(i = 0; i < numverts; i++){
+-    if(index1[i] < 0){
+-      child->verts[i] = parent->verts[index0[i]];
+-    }
+-    else{
+-      gl2psCutEdge(&parent->verts[index0[i]], &parent->verts[index1[i]], 
+-                   plane, &child->verts[i]);
+-    }
+-  }
+-}
+-
+-static void gl2psAddIndex(GLshort *index0, GLshort *index1, GLshort *nb, 
+-                          GLshort i, GLshort j)
+-{
+-  GLint k;
+-
+-  for(k = 0; k < *nb; k++){
+-    if((index0[k] == i && index1[k] == j) ||
+-       (index1[k] == i && index0[k] == j)) return;
+-  }
+-  index0[*nb] = i;
+-  index1[*nb] = j;
+-  (*nb)++;
+-}
+-
+-static GLshort gl2psGetIndex(GLshort i, GLshort num)
+-{
+-  return (i < num - 1) ? i + 1 : 0;
+-}
+-
+-static GLint gl2psTestSplitPrimitive(GL2PSprimitive *prim, GL2PSplane plane)
+-{
+-  GLint type = GL2PS_COINCIDENT;
+-  GLshort i, j;
+-  GLfloat d[5]; 
+-
+-  for(i = 0; i < prim->numverts; i++){  
+-    d[i] = gl2psComparePointPlane(prim->verts[i].xyz, plane);
+-  }
+-
+-  if(prim->numverts < 2){
+-    return 0;
+-  }
+-  else{
+-    for(i = 0; i < prim->numverts; i++){
+-      j = gl2psGetIndex(i, prim->numverts);
+-      if(d[j] > GL2PS_EPSILON){
+-        if(type == GL2PS_COINCIDENT)      type = GL2PS_IN_BACK_OF;
+-        else if(type != GL2PS_IN_BACK_OF) return 1; 
+-        if(d[i] < -GL2PS_EPSILON)         return 1;
+-      }
+-      else if(d[j] < -GL2PS_EPSILON){
+-        if(type == GL2PS_COINCIDENT)       type = GL2PS_IN_FRONT_OF;   
+-        else if(type != GL2PS_IN_FRONT_OF) return 1;
+-        if(d[i] > GL2PS_EPSILON)           return 1;
+-      }
+-    }
+-  }
+-  return 0;
+-}
+-
+-static GLint gl2psSplitPrimitive(GL2PSprimitive *prim, GL2PSplane plane, 
+-                                 GL2PSprimitive **front, GL2PSprimitive **back)
+-{
+-  GLshort i, j, in = 0, out = 0, in0[5], in1[5], out0[5], out1[5];
+-  GLint type;
+-  GLfloat d[5]; 
+-
+-  type = GL2PS_COINCIDENT;
+-
+-  for(i = 0; i < prim->numverts; i++){  
+-    d[i] = gl2psComparePointPlane(prim->verts[i].xyz, plane);
+-  }
+-
+-  switch(prim->type){
+-  case GL2PS_POINT :
+-    if(d[0] > GL2PS_EPSILON)       type = GL2PS_IN_BACK_OF;
+-    else if(d[0] < -GL2PS_EPSILON) type = GL2PS_IN_FRONT_OF;
+-    else                           type = GL2PS_COINCIDENT;
+-    break;
+-  default :
+-    for(i = 0; i < prim->numverts; i++){
+-      j = gl2psGetIndex(i, prim->numverts);
+-      if(d[j] > GL2PS_EPSILON){
+-        if(type == GL2PS_COINCIDENT)      type = GL2PS_IN_BACK_OF;
+-        else if(type != GL2PS_IN_BACK_OF) type = GL2PS_SPANNING; 
+-        if(d[i] < -GL2PS_EPSILON){
+-          gl2psAddIndex(in0, in1, &in, i, j);
+-          gl2psAddIndex(out0, out1, &out, i, j);
+-          type = GL2PS_SPANNING;
+-        }
+-        gl2psAddIndex(out0, out1, &out, j, -1);
+-      }
+-      else if(d[j] < -GL2PS_EPSILON){
+-        if(type == GL2PS_COINCIDENT)       type = GL2PS_IN_FRONT_OF;   
+-        else if(type != GL2PS_IN_FRONT_OF) type = GL2PS_SPANNING;
+-        if(d[i] > GL2PS_EPSILON){
+-          gl2psAddIndex(in0, in1, &in, i, j);
+-          gl2psAddIndex(out0, out1, &out, i, j);
+-          type = GL2PS_SPANNING;
+-        }
+-        gl2psAddIndex(in0, in1, &in, j, -1);
+-      }
+-      else{
+-        gl2psAddIndex(in0, in1, &in, j, -1);
+-        gl2psAddIndex(out0, out1, &out, j, -1);
+-      }
+-    }
+-    break;
+-  }
+-
+-  if(type == GL2PS_SPANNING){
+-    *back = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-    *front = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-    gl2psCreateSplitPrimitive(prim, plane, *back, out, out0, out1);
+-    gl2psCreateSplitPrimitive(prim, plane, *front, in, in0, in1);
+-  }
+-
+-  return type;
+-}
+-
+-static void gl2psDivideQuad(GL2PSprimitive *quad, 
+-                            GL2PSprimitive **t1, GL2PSprimitive **t2)
+-{
+-  *t1 = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-  *t2 = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-  (*t1)->type = (*t2)->type = GL2PS_TRIANGLE;
+-  (*t1)->numverts = (*t2)->numverts = 3;
+-  (*t1)->culled = (*t2)->culled = quad->culled;
+-  (*t1)->offset = (*t2)->offset = quad->offset;
+-  (*t1)->pattern = (*t2)->pattern = quad->pattern;
+-  (*t1)->factor = (*t2)->factor = quad->factor;
+-  (*t1)->width = (*t2)->width = quad->width;
+-  (*t1)->verts = (GL2PSvertex*)gl2psMalloc(3 * sizeof(GL2PSvertex));
+-  (*t2)->verts = (GL2PSvertex*)gl2psMalloc(3 * sizeof(GL2PSvertex));
+-  (*t1)->verts[0] = quad->verts[0];
+-  (*t1)->verts[1] = quad->verts[1];
+-  (*t1)->verts[2] = quad->verts[2];
+-  (*t1)->boundary = ((quad->boundary & 1) ? 1 : 0) | ((quad->boundary & 2) ? 2 : 0);
+-  (*t2)->verts[0] = quad->verts[0];
+-  (*t2)->verts[1] = quad->verts[2];
+-  (*t2)->verts[2] = quad->verts[3];
+-  (*t2)->boundary = ((quad->boundary & 4) ? 2 : 0) | ((quad->boundary & 4) ? 2 : 0);
+-}
+-
+-static int gl2psCompareDepth(const void *a, const void *b)
+-{
+-  GL2PSprimitive *q, *w;
+-  GLfloat dq = 0.0F, dw = 0.0F, diff;
+-  int i;
+-  
+-  q = *(GL2PSprimitive**)a;
+-  w = *(GL2PSprimitive**)b;
+-
+-  for(i = 0; i < q->numverts; i++){
+-    dq += q->verts[i].xyz[2]; 
+-  }
+-  dq /= (GLfloat)q->numverts;
+-
+-  for(i = 0; i < w->numverts; i++){
+-    dw += w->verts[i].xyz[2]; 
+-  }
+-  dw /= (GLfloat)w->numverts;
+-
+-  diff = dq - dw;
+-  if(diff > 0.){
+-    return -1;
+-  }
+-  else if(diff < 0.){
+-    return 1;
+-  }
+-  else{
+-    return 0;
+-  }
+-}
+-
+-static int gl2psTrianglesFirst(const void *a, const void *b)
+-{
+-  GL2PSprimitive *q, *w;
+-
+-  q = *(GL2PSprimitive**)a;
+-  w = *(GL2PSprimitive**)b;
+-  return (q->type < w->type ? 1 : -1);
+-}
+-
+-static GLint gl2psFindRoot(GL2PSlist *primitives, GL2PSprimitive **root)
+-{
+-  GLint i, j, count, best = 1000000, index = 0;
+-  GL2PSprimitive *prim1, *prim2;
+-  GL2PSplane plane;
+-  GLint maxp;
+-
+-  if(!gl2psListNbr(primitives)){
+-    gl2psMsg(GL2PS_ERROR, "Cannot fint root in empty primitive list");
+-    return 0;
+-  }
+-
+-  *root = *(GL2PSprimitive**)gl2psListPointer(primitives, 0);
+-
+-  if(gl2ps->options & GL2PS_BEST_ROOT){
+-    maxp = gl2psListNbr(primitives);
+-    if(maxp > gl2ps->maxbestroot){
+-      maxp = gl2ps->maxbestroot;
+-    }
+-    for(i = 0; i < maxp; i++){
+-      prim1 = *(GL2PSprimitive**)gl2psListPointer(primitives, i);
+-      gl2psGetPlane(prim1, plane);
+-      count = 0;
+-      for(j = 0; j < gl2psListNbr(primitives); j++){
+-        if(j != i){
+-          prim2 = *(GL2PSprimitive**)gl2psListPointer(primitives, j);
+-          count += gl2psTestSplitPrimitive(prim2, plane); 
+-        }
+-        if(count > best) break;
+-      }
+-      if(count < best){
+-        best = count;
+-        index = i;
+-        *root = prim1;
+-        if(!count) return index;
+-      }
+-    }
+-    /* if(index) gl2psMsg(GL2PS_INFO, "GL2PS_BEST_ROOT was worth it: %d", index); */
+-    return index;
+-  }
+-  else{
+-    return 0;
+-  }
+-}
+-
+-static void gl2psFreeImagemap(GL2PSimagemap *list)
+-{
+-  GL2PSimagemap *next;
+-  while(list != NULL){
+-    next = list->next;
+-    gl2psFree(list->image->pixels);
+-    gl2psFree(list->image);
+-    gl2psFree(list);
+-    list = next;
+-  }
+-}
+-
+-static void gl2psFreePrimitive(void *data)
+-{
+-  GL2PSprimitive *q;
+-  
+-  q = *(GL2PSprimitive**)data;
+-  gl2psFree(q->verts);
+-  if(q->type == GL2PS_TEXT || q->type == GL2PS_SPECIAL){
+-    gl2psFreeText(q->data.text);
+-  }
+-  else if(q->type == GL2PS_PIXMAP){
+-    gl2psFreePixmap(q->data.image);
+-  }
+-  gl2psFree(q);
+-}
+-
+-static void gl2psAddPrimitiveInList(GL2PSprimitive *prim, GL2PSlist *list)
+-{
+-  GL2PSprimitive *t1, *t2;
+-
+-  if(prim->type != GL2PS_QUADRANGLE){
+-    gl2psListAdd(list, &prim);
+-  }
+-  else{
+-    gl2psDivideQuad(prim, &t1, &t2);
+-    gl2psListAdd(list, &t1);
+-    gl2psListAdd(list, &t2);
+-    gl2psFreePrimitive(&prim);
+-  }
+-  
+-}
+-
+-static void gl2psFreeBspTree(GL2PSbsptree **tree)
+-{
+-  if(*tree){
+-    if((*tree)->back) gl2psFreeBspTree(&(*tree)->back);
+-    if((*tree)->primitives){
+-      gl2psListAction((*tree)->primitives, gl2psFreePrimitive);
+-      gl2psListDelete((*tree)->primitives);
+-    }
+-    if((*tree)->front) gl2psFreeBspTree(&(*tree)->front);
+-    gl2psFree(*tree);
+-    *tree = NULL;
+-  }
+-}
+-
+-static GLboolean gl2psGreater(GLfloat f1, GLfloat f2)
+-{
+-  if(f1 > f2) return GL_TRUE;
+-  else return GL_FALSE;
+-}
+-
+-static GLboolean gl2psLess(GLfloat f1, GLfloat f2)
+-{
+-  if(f1 < f2) return GL_TRUE;
+-  else return GL_FALSE;
+-}
+-
+-static void gl2psBuildBspTree(GL2PSbsptree *tree, GL2PSlist *primitives)
+-{
+-  GL2PSprimitive *prim, *frontprim = NULL, *backprim = NULL;
+-  GL2PSlist *frontlist, *backlist;
+-  GLint i, index;
+-
+-  tree->front = NULL;
+-  tree->back = NULL;
+-  tree->primitives = gl2psListCreate(1, 2, sizeof(GL2PSprimitive*));
+-  index = gl2psFindRoot(primitives, &prim);
+-  gl2psGetPlane(prim, tree->plane);
+-  gl2psAddPrimitiveInList(prim, tree->primitives);
+-
+-  frontlist = gl2psListCreate(1, 2, sizeof(GL2PSprimitive*));
+-  backlist = gl2psListCreate(1, 2, sizeof(GL2PSprimitive*));
+-
+-  for(i = 0; i < gl2psListNbr(primitives); i++){
+-    if(i != index){
+-      prim = *(GL2PSprimitive**)gl2psListPointer(primitives,i);
+-      switch(gl2psSplitPrimitive(prim, tree->plane, &frontprim, &backprim)){
+-      case GL2PS_COINCIDENT:
+-        gl2psAddPrimitiveInList(prim, tree->primitives);
+-        break;
+-      case GL2PS_IN_BACK_OF:
+-        gl2psAddPrimitiveInList(prim, backlist);
+-        break;
+-      case GL2PS_IN_FRONT_OF:
+-        gl2psAddPrimitiveInList(prim, frontlist);
+-        break;
+-      case GL2PS_SPANNING:
+-        gl2psAddPrimitiveInList(backprim, backlist);
+-        gl2psAddPrimitiveInList(frontprim, frontlist);
+-        gl2psFreePrimitive(&prim);
+-        break;
+-      }
+-    }
+-  }
+-
+-  if(gl2psListNbr(tree->primitives)){
+-    gl2psListSort(tree->primitives, gl2psTrianglesFirst);
+-  }
+-
+-  if(gl2psListNbr(frontlist)){
+-    gl2psListSort(frontlist, gl2psTrianglesFirst);
+-    tree->front = (GL2PSbsptree*)gl2psMalloc(sizeof(GL2PSbsptree));
+-    gl2psBuildBspTree(tree->front, frontlist);
+-  }
+-  else{
+-    gl2psListDelete(frontlist);
+-  }
+-
+-  if(gl2psListNbr(backlist)){
+-    gl2psListSort(backlist, gl2psTrianglesFirst);
+-    tree->back = (GL2PSbsptree*)gl2psMalloc(sizeof(GL2PSbsptree));
+-    gl2psBuildBspTree(tree->back, backlist);
+-  }
+-  else{
+-    gl2psListDelete(backlist);
+-  }
+-
+-  gl2psListDelete(primitives);
+-}
+-
+-static void gl2psTraverseBspTree(GL2PSbsptree *tree, GL2PSxyz eye, GLfloat epsilon,
+-                                 GLboolean (*compare)(GLfloat f1, GLfloat f2),
+-                                 void (*action)(void *data), int inverse)
+-{
+-  GLfloat result;
+-
+-  if(!tree) return;
+-
+-  result = gl2psComparePointPlane(eye, tree->plane);
+-
+-  if(GL_TRUE == compare(result, epsilon)){
+-    gl2psTraverseBspTree(tree->back, eye, epsilon, compare, action, inverse);
+-    if(inverse){
+-      gl2psListActionInverse(tree->primitives, action);
+-    }
+-    else{
+-      gl2psListAction(tree->primitives, action);
+-    }
+-    gl2psTraverseBspTree(tree->front, eye, epsilon, compare, action, inverse);
+-  }
+-  else if(GL_TRUE == compare(-epsilon, result)){ 
+-    gl2psTraverseBspTree(tree->front, eye, epsilon, compare, action, inverse);
+-    if(inverse){
+-      gl2psListActionInverse(tree->primitives, action);
+-    }
+-    else{
+-      gl2psListAction(tree->primitives, action);
+-    }
+-    gl2psTraverseBspTree(tree->back, eye, epsilon, compare, action, inverse);
+-  }
+-  else{
+-    gl2psTraverseBspTree(tree->front, eye, epsilon, compare, action, inverse);
+-    gl2psTraverseBspTree(tree->back, eye, epsilon, compare, action, inverse);
+-  }
+-}
+-
+-static void gl2psRescaleAndOffset()
+-{
+-  GL2PSprimitive *prim;
+-  GLfloat minZ, maxZ, rangeZ, scaleZ;
+-  GLfloat factor, units, area, dZ, dZdX, dZdY, maxdZ;
+-  int i, j;
+-
+-  if(!gl2psListNbr(gl2ps->primitives))
+-    return;
+-
+-  /* get z-buffer range */
+-  prim = *(GL2PSprimitive**)gl2psListPointer(gl2ps->primitives, 0);
+-  minZ = maxZ = prim->verts[0].xyz[2];
+-  for(i = 1; i < prim->numverts; i++){
+-    if(prim->verts[i].xyz[2] < minZ) minZ = prim->verts[i].xyz[2];
+-    if(prim->verts[i].xyz[2] > maxZ) maxZ = prim->verts[i].xyz[2];
+-  }
+-  for(i = 1; i < gl2psListNbr(gl2ps->primitives); i++){
+-    prim = *(GL2PSprimitive**)gl2psListPointer(gl2ps->primitives, i);
+-    for(j = 0; j < prim->numverts; j++){
+-      if(prim->verts[j].xyz[2] < minZ) minZ = prim->verts[j].xyz[2];
+-      if(prim->verts[j].xyz[2] > maxZ) maxZ = prim->verts[j].xyz[2];
+-    }
+-  }
+-  rangeZ = (maxZ - minZ);
+-
+-  /* rescale z-buffer coordinate in [0,GL2PS_ZSCALE], to make it of
+-     the same order of magnitude as the x and y coordinates */
+-  scaleZ = GL2PS_ZERO(rangeZ) ? GL2PS_ZSCALE : (GL2PS_ZSCALE / rangeZ);
+-  /* avoid precision loss (we use floats!) */
+-  if(scaleZ > 100000.F) scaleZ = 100000.F;
+-
+-  /* apply offsets */
+-  for(i = 0; i < gl2psListNbr(gl2ps->primitives); i++){
+-    prim = *(GL2PSprimitive**)gl2psListPointer(gl2ps->primitives, i);
+-    for(j = 0; j < prim->numverts; j++){
+-      prim->verts[j].xyz[2] = (prim->verts[j].xyz[2] - minZ) * scaleZ;
+-    }
+-    if((gl2ps->options & GL2PS_SIMPLE_LINE_OFFSET) &&
+-       (prim->type == GL2PS_LINE)){
+-      if(gl2ps->sort == GL2PS_SIMPLE_SORT){
+-        prim->verts[0].xyz[2] -= GL2PS_ZOFFSET_LARGE;
+-        prim->verts[1].xyz[2] -= GL2PS_ZOFFSET_LARGE;
+-      }
+-      else{
+-        prim->verts[0].xyz[2] -= GL2PS_ZOFFSET;
+-        prim->verts[1].xyz[2] -= GL2PS_ZOFFSET;
+-      }
+-    }
+-    else if(prim->offset && (prim->type == GL2PS_TRIANGLE)){
+-      factor = gl2ps->offset[0];
+-      units = gl2ps->offset[1];
+-      area = 
+-        (prim->verts[1].xyz[0] - prim->verts[0].xyz[0]) * 
+-        (prim->verts[2].xyz[1] - prim->verts[1].xyz[1]) - 
+-        (prim->verts[2].xyz[0] - prim->verts[1].xyz[0]) * 
+-        (prim->verts[1].xyz[1] - prim->verts[0].xyz[1]);
+-      if(!GL2PS_ZERO(area)){
+-        dZdX = 
+-          ((prim->verts[2].xyz[1] - prim->verts[1].xyz[1]) *
+-           (prim->verts[1].xyz[2] - prim->verts[0].xyz[2]) -
+-           (prim->verts[1].xyz[1] - prim->verts[0].xyz[1]) *
+-           (prim->verts[2].xyz[2] - prim->verts[1].xyz[2])) / area;
+-        dZdY = 
+-          ((prim->verts[1].xyz[0] - prim->verts[0].xyz[0]) *
+-           (prim->verts[2].xyz[2] - prim->verts[1].xyz[2]) -
+-           (prim->verts[2].xyz[0] - prim->verts[1].xyz[0]) *
+-           (prim->verts[1].xyz[2] - prim->verts[0].xyz[2])) / area;
+-        maxdZ = (GLfloat)sqrt(dZdX * dZdX + dZdY * dZdY);
+-      }
+-      else{
+-        maxdZ = 0.0F;
+-      }
+-      dZ = factor * maxdZ + units;
+-      prim->verts[0].xyz[2] += dZ;
+-      prim->verts[1].xyz[2] += dZ;
+-      prim->verts[2].xyz[2] += dZ;
+-    }
+-  }
+-}
+-
+-/********************************************************************* 
+- *
+- * 2D sorting routines (for occlusion culling) 
+- *
+- *********************************************************************/
+-
+-static GLint gl2psGetPlaneFromPoints(GL2PSxyz a, GL2PSxyz b, GL2PSplane plane)
+-{
+-  GLfloat n; 
+-
+-  plane[0] = b[1] - a[1];
+-  plane[1] = a[0] - b[0];
+-  n = (GLfloat)sqrt(plane[0]*plane[0] + plane[1]*plane[1]);
+-  plane[2] = 0.0F;
+-  if(!GL2PS_ZERO(n)){
+-    plane[0] /= n;
+-    plane[1] /= n;
+-    plane[3] = -plane[0]*a[0]-plane[1]*a[1]; 
+-    return 1;
+-  }
+-  else{
+-    plane[0] = -1.0F;
+-    plane[1] = 0.0F;
+-    plane[3] = a[0];
+-    return 0;
+-  }
+-}
+-
+-static void gl2psFreeBspImageTree(GL2PSbsptree2d **tree)
+-{
+-  if(*tree){
+-    if((*tree)->back)  gl2psFreeBspImageTree(&(*tree)->back);
+-    if((*tree)->front) gl2psFreeBspImageTree(&(*tree)->front);
+-    gl2psFree(*tree);
+-    *tree = NULL;
+-  }
+-}
+-
+-static GLint gl2psCheckPoint(GL2PSxyz point, GL2PSplane plane)
+-{
+-  GLfloat pt_dis;
+-
+-  pt_dis = gl2psComparePointPlane(point, plane);
+-  if(pt_dis > GL2PS_EPSILON)        return GL2PS_POINT_INFRONT;
+-  else if(pt_dis < -GL2PS_EPSILON)  return GL2PS_POINT_BACK;
+-  else                              return GL2PS_POINT_COINCIDENT;
+-}
+-
+-static void gl2psAddPlanesInBspTreeImage(GL2PSprimitive *prim,
+-                                         GL2PSbsptree2d **tree)
+-{
+-  GLint ret = 0;
+-  GLint i;
+-  GLint offset = 0;
+-  GL2PSbsptree2d *head = NULL, *cur = NULL;
+-
+-  if((*tree == NULL) && (prim->numverts > 2)){
+-    /* don't cull if transparent
+-    for(i = 0; i < prim->numverts - 1; i++)
+-      if(prim->verts[i].rgba[3] < 1.0F) return;
+-    */
+-    head = (GL2PSbsptree2d*)gl2psMalloc(sizeof(GL2PSbsptree2d));
+-    for(i = 0; i < prim->numverts-1; i++){
+-      if(!gl2psGetPlaneFromPoints(prim->verts[i].xyz,
+-                                  prim->verts[i+1].xyz,
+-                                  head->plane)){
+-        if(prim->numverts-i > 3){
+-          offset++;
+-        }
+-        else{
+-          gl2psFree(head);
+-          return;
+-        }
+-      }
+-      else{
+-        break;
+-      }
+-    }
+-    head->back = NULL;
+-    head->front = NULL;
+-    for(i = 2+offset; i < prim->numverts; i++){
+-      ret = gl2psCheckPoint(prim->verts[i].xyz, head->plane);
+-      if(ret != GL2PS_POINT_COINCIDENT) break;
+-    }
+-    switch(ret){
+-    case GL2PS_POINT_INFRONT :
+-      cur = head;
+-      for(i = 1+offset; i < prim->numverts-1; i++){
+-        if(cur->front == NULL){
+-          cur->front = (GL2PSbsptree2d*)gl2psMalloc(sizeof(GL2PSbsptree2d));
+-        }
+-        if(gl2psGetPlaneFromPoints(prim->verts[i].xyz,
+-                                   prim->verts[i+1].xyz,
+-                                   cur->front->plane)){
+-          cur = cur->front;
+-          cur->front = NULL;
+-          cur->back = NULL;
+-        }
+-      }
+-      if(cur->front == NULL){
+-        cur->front = (GL2PSbsptree2d*)gl2psMalloc(sizeof(GL2PSbsptree2d));
+-      }
+-      if(gl2psGetPlaneFromPoints(prim->verts[i].xyz,
+-                                 prim->verts[offset].xyz,
+-                                 cur->front->plane)){
+-        cur->front->front = NULL;
+-        cur->front->back = NULL;
+-      }
+-      else{
+-        gl2psFree(cur->front);
+-        cur->front = NULL;
+-      }
+-      break;
+-    case GL2PS_POINT_BACK :
+-      for(i = 0; i < 4; i++){
+-        head->plane[i] = -head->plane[i];
+-      }
+-      cur = head;
+-      for(i = 1+offset; i < prim->numverts-1; i++){
+-        if(cur->front == NULL){
+-          cur->front = (GL2PSbsptree2d*)gl2psMalloc(sizeof(GL2PSbsptree2d));
+-        }
+-        if(gl2psGetPlaneFromPoints(prim->verts[i+1].xyz,
+-                                   prim->verts[i].xyz,
+-                                   cur->front->plane)){
+-          cur = cur->front;
+-          cur->front = NULL;
+-          cur->back = NULL;
+-        }
+-      }
+-      if(cur->front == NULL){
+-        cur->front = (GL2PSbsptree2d*)gl2psMalloc(sizeof(GL2PSbsptree2d));
+-      }
+-      if(gl2psGetPlaneFromPoints(prim->verts[offset].xyz,
+-                                 prim->verts[i].xyz,
+-                                 cur->front->plane)){
+-        cur->front->front = NULL;
+-        cur->front->back = NULL;
+-      }
+-      else{
+-        gl2psFree(cur->front);
+-        cur->front = NULL;
+-      }
+-      break;
+-    default:
+-      gl2psFree(head);
+-      return;
+-    }
+-    (*tree) = head;
+-  }
+-}
+-
+-static GLint gl2psCheckPrimitive(GL2PSprimitive *prim, GL2PSplane plane)
+-{
+-  GLint i;
+-  GLint pos;
+-
+-  pos = gl2psCheckPoint(prim->verts[0].xyz, plane);
+-  for(i = 1; i < prim->numverts; i++){
+-    pos |= gl2psCheckPoint(prim->verts[i].xyz, plane);
+-    if(pos == (GL2PS_POINT_INFRONT | GL2PS_POINT_BACK)) return GL2PS_SPANNING;
+-  }
+-  if(pos & GL2PS_POINT_INFRONT)   return GL2PS_IN_FRONT_OF;
+-  else if(pos & GL2PS_POINT_BACK) return GL2PS_IN_BACK_OF;
+-  else                            return GL2PS_COINCIDENT;
+-}
+-
+-static GL2PSprimitive *gl2psCreateSplitPrimitive2D(GL2PSprimitive *parent,
+-                                                   GLshort numverts,
+-                                                   GL2PSvertex *vertx)
+-{
+-  GLint i;
+-  GL2PSprimitive *child = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-
+-  if(parent->type == GL2PS_IMAGEMAP){
+-    child->type = GL2PS_IMAGEMAP;
+-    child->data.image = parent->data.image;
+-  }
+-  else {
+-    switch(numverts){
+-    case 1 : child->type = GL2PS_POINT; break;
+-    case 2 : child->type = GL2PS_LINE; break;
+-    case 3 : child->type = GL2PS_TRIANGLE; break;
+-    case 4 : child->type = GL2PS_QUADRANGLE; break;
+-    default: child->type = GL2PS_NO_TYPE; break; /* FIXME */
+-    }
+-  }
+-  child->boundary = 0; /* FIXME: not done! */
+-  child->culled = parent->culled;
+-  child->offset = parent->offset;
+-  child->pattern = parent->pattern;
+-  child->factor = parent->factor;
+-  child->width = parent->width;
+-  child->numverts = numverts;
+-  child->verts = (GL2PSvertex*)gl2psMalloc(numverts * sizeof(GL2PSvertex));
+-  for(i = 0; i < numverts; i++){
+-    child->verts[i] = vertx[i];
+-  }
+-  return child;
+-}
+-
+-static void gl2psSplitPrimitive2D(GL2PSprimitive *prim,
+-                                  GL2PSplane plane, 
+-                                  GL2PSprimitive **front, 
+-                                  GL2PSprimitive **back)
+-{
+-  /* cur will hold the position of the current vertex
+-     prev will hold the position of the previous vertex
+-     prev0 will hold the position of the vertex number 0
+-     v1 and v2 represent the current and previous vertices, respectively
+-     flag is set if the current vertex should be checked against the plane */
+-  GLint cur = -1, prev = -1, i, v1 = 0, v2 = 0, flag = 1, prev0 = -1;
+-  
+-  /* list of vertices that will go in front and back primitive */
+-  GL2PSvertex *front_list = NULL, *back_list = NULL;
+-  
+-  /* number of vertices in front and back list */
+-  GLshort front_count = 0, back_count = 0;
+-
+-  for(i = 0; i <= prim->numverts; i++){
+-    v1 = i;
+-    if(v1 == prim->numverts){
+-      if(prim->numverts < 3) break;
+-      v1 = 0;
+-      v2 = prim->numverts - 1;
+-      cur = prev0;
+-    }
+-    else if(flag){
+-      cur = gl2psCheckPoint(prim->verts[v1].xyz, plane);
+-      if(i == 0){
+-        prev0 = cur;
+-      }
+-    } 
+-    if(((prev == -1) || (prev == cur) || (prev == 0) || (cur == 0)) &&
+-       (i < prim->numverts)){
+-      if(cur == GL2PS_POINT_INFRONT){
+-        front_count++;
+-        front_list = (GL2PSvertex*)gl2psRealloc(front_list,
+-                                                sizeof(GL2PSvertex)*front_count);
+-        front_list[front_count-1] = prim->verts[v1];
+-      }
+-      else if(cur == GL2PS_POINT_BACK){
+-        back_count++;
+-        back_list = (GL2PSvertex*)gl2psRealloc(back_list,
+-                                               sizeof(GL2PSvertex)*back_count);
+-        back_list[back_count-1] = prim->verts[v1];
+-      }
+-      else{
+-        front_count++;
+-        front_list = (GL2PSvertex*)gl2psRealloc(front_list,
+-                                                sizeof(GL2PSvertex)*front_count);
+-        front_list[front_count-1] = prim->verts[v1];
+-        back_count++;
+-        back_list = (GL2PSvertex*)gl2psRealloc(back_list,
+-                                               sizeof(GL2PSvertex)*back_count);
+-        back_list[back_count-1] = prim->verts[v1];
+-      }
+-      flag = 1;
+-    }
+-    else if((prev != cur) && (cur != 0) && (prev != 0)){
+-      if(v1 != 0){
+-        v2 = v1-1;
+-        i--;
+-      }
+-      front_count++;
+-      front_list = (GL2PSvertex*)gl2psRealloc(front_list,
+-                                              sizeof(GL2PSvertex)*front_count);
+-      gl2psCutEdge(&prim->verts[v2], &prim->verts[v1],
+-                   plane, &front_list[front_count-1]);
+-      back_count++;
+-      back_list = (GL2PSvertex*)gl2psRealloc(back_list,
+-                                             sizeof(GL2PSvertex)*back_count);
+-      back_list[back_count-1] = front_list[front_count-1];
+-      flag = 0;
+-    }
+-    prev = cur;
+-  }
+-  *front = gl2psCreateSplitPrimitive2D(prim, front_count, front_list);
+-  *back = gl2psCreateSplitPrimitive2D(prim, back_count, back_list);
+-  gl2psFree(front_list);
+-  gl2psFree(back_list);
+-}
+-
+-static GLint gl2psAddInBspImageTree(GL2PSprimitive *prim, GL2PSbsptree2d **tree)
+-{
+-  GLint ret = 0;
+-  GL2PSprimitive *frontprim = NULL, *backprim = NULL;
+-  
+-  /* FIXME: until we consider the actual extent of text strings and
+-     pixmaps, never cull them. Otherwise the whole string/pixmap gets
+-     culled as soon as the reference point is hidden */
+-  if(prim->type == GL2PS_PIXMAP || 
+-     prim->type == GL2PS_TEXT || 
+-     prim->type == GL2PS_SPECIAL){
+-    return 1;
+-  }
+-
+-  if(*tree == NULL){
+-    if((prim->type != GL2PS_IMAGEMAP) && (GL_FALSE == gl2ps->zerosurfacearea)){
+-      gl2psAddPlanesInBspTreeImage(gl2ps->primitivetoadd, tree);
+-    }
+-    return 1;
+-  }
+-  else{
+-    switch(gl2psCheckPrimitive(prim, (*tree)->plane)){
+-    case GL2PS_IN_BACK_OF: return gl2psAddInBspImageTree(prim, &(*tree)->back);
+-    case GL2PS_IN_FRONT_OF: 
+-      if((*tree)->front != NULL) return gl2psAddInBspImageTree(prim, &(*tree)->front);
+-      else                       return 0;
+-    case GL2PS_SPANNING:
+-      gl2psSplitPrimitive2D(prim, (*tree)->plane, &frontprim, &backprim);
+-      ret = gl2psAddInBspImageTree(backprim, &(*tree)->back);
+-      if((*tree)->front != NULL){
+-        if(gl2psAddInBspImageTree(frontprim, &(*tree)->front)){
+-          ret = 1;
+-        }
+-      }
+-      gl2psFree(frontprim->verts);
+-      gl2psFree(frontprim);
+-      gl2psFree(backprim->verts);
+-      gl2psFree(backprim);
+-      return ret;
+-    case GL2PS_COINCIDENT:
+-      if((*tree)->back != NULL){
+-        gl2ps->zerosurfacearea = GL_TRUE;
+-        ret = gl2psAddInBspImageTree(prim, &(*tree)->back);
+-        gl2ps->zerosurfacearea = GL_FALSE;
+-        if(ret) return ret;
+-      }
+-      if((*tree)->front != NULL){
+-        gl2ps->zerosurfacearea = GL_TRUE;
+-        ret = gl2psAddInBspImageTree(prim, &(*tree)->front);
+-        gl2ps->zerosurfacearea = GL_FALSE;
+-        if(ret) return ret;
+-      }
+-      if(prim->type == GL2PS_LINE) return 1;
+-      else                         return 0;
+-    }
+-  }
+-  return 0;
+-}
+-
+-static void gl2psAddInImageTree(void *data)
+-{
+-  GL2PSprimitive *prim = *(GL2PSprimitive **)data;
+-  gl2ps->primitivetoadd = prim;
+-  if(prim->type == GL2PS_IMAGEMAP && prim->data.image->format == GL2PS_IMAGEMAP_VISIBLE){
+-    prim->culled = 1;
+-  }
+-  else if(!gl2psAddInBspImageTree(prim, &gl2ps->imagetree)){
+-    prim->culled = 1;
+-  }
+-  else if(prim->type == GL2PS_IMAGEMAP){
+-    prim->data.image->format = GL2PS_IMAGEMAP_VISIBLE;
+-  }
+-}
+-
+-/* Boundary construction */
+-
+-static void gl2psAddBoundaryInList(GL2PSprimitive *prim, GL2PSlist *list)
+-{
+-  GL2PSprimitive *b;
+-  GLshort i;
+-  GL2PSxyz c;
+-
+-  c[0] = c[1] = c[2] = 0.0F;
+-  for(i = 0; i < prim->numverts; i++){
+-    c[0] += prim->verts[i].xyz[0];
+-    c[1] += prim->verts[i].xyz[1];
+-  }
+-  c[0] /= prim->numverts;
+-  c[1] /= prim->numverts;
+-
+-  for(i = 0; i < prim->numverts; i++){
+-    if(prim->boundary & (GLint)pow(2., i)){
+-      b = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-      b->type = GL2PS_LINE;
+-      b->offset = prim->offset;
+-      b->pattern = prim->pattern;
+-      b->factor = prim->factor;
+-      b->culled = prim->culled;
+-      b->width = prim->width;
+-      b->boundary = 0;
+-      b->numverts = 2;
+-      b->verts = (GL2PSvertex*)gl2psMalloc(2 * sizeof(GL2PSvertex));
+-
+-#if 0 /* FIXME: need to work on boundary offset... */
+-      v[0] = c[0] - prim->verts[i].xyz[0];
+-      v[1] = c[1] - prim->verts[i].xyz[1];
+-      v[2] = 0.0F;
+-      norm = gl2psNorm(v);
+-      v[0] /= norm;
+-      v[1] /= norm;
+-      b->verts[0].xyz[0] = prim->verts[i].xyz[0] +0.1*v[0];
+-      b->verts[0].xyz[1] = prim->verts[i].xyz[1] +0.1*v[1];
+-      b->verts[0].xyz[2] = prim->verts[i].xyz[2];
+-      v[0] = c[0] - prim->verts[gl2psGetIndex(i, prim->numverts)].xyz[0];
+-      v[1] = c[1] - prim->verts[gl2psGetIndex(i, prim->numverts)].xyz[1];
+-      norm = gl2psNorm(v);
+-      v[0] /= norm;
+-      v[1] /= norm;
+-      b->verts[1].xyz[0] = prim->verts[gl2psGetIndex(i, prim->numverts)].xyz[0] +0.1*v[0];
+-      b->verts[1].xyz[1] = prim->verts[gl2psGetIndex(i, prim->numverts)].xyz[1] +0.1*v[1];
+-      b->verts[1].xyz[2] = prim->verts[gl2psGetIndex(i, prim->numverts)].xyz[2];
+-#else
+-      b->verts[0].xyz[0] = prim->verts[i].xyz[0];
+-      b->verts[0].xyz[1] = prim->verts[i].xyz[1];
+-      b->verts[0].xyz[2] = prim->verts[i].xyz[2];
+-      b->verts[1].xyz[0] = prim->verts[gl2psGetIndex(i, prim->numverts)].xyz[0];
+-      b->verts[1].xyz[1] = prim->verts[gl2psGetIndex(i, prim->numverts)].xyz[1];
+-      b->verts[1].xyz[2] = prim->verts[gl2psGetIndex(i, prim->numverts)].xyz[2];
+-#endif
+-
+-      b->verts[0].rgba[0] = 0.0F;
+-      b->verts[0].rgba[1] = 0.0F;
+-      b->verts[0].rgba[2] = 0.0F;
+-      b->verts[0].rgba[3] = 0.0F;
+-      b->verts[1].rgba[0] = 0.0F;
+-      b->verts[1].rgba[1] = 0.0F;
+-      b->verts[1].rgba[2] = 0.0F;
+-      b->verts[1].rgba[3] = 0.0F;
+-      gl2psListAdd(list, &b);
+-    }
+-  }
+-
+-}
+-
+-static void gl2psBuildPolygonBoundary(GL2PSbsptree *tree)
+-{
+-  GLint i;
+-  GL2PSprimitive *prim;
+-
+-  if(!tree) return;
+-  gl2psBuildPolygonBoundary(tree->back);
+-  for(i = 0; i < gl2psListNbr(tree->primitives); i++){
+-    prim = *(GL2PSprimitive**)gl2psListPointer(tree->primitives, i);
+-    if(prim->boundary) gl2psAddBoundaryInList(prim, tree->primitives);
+-  }
+-  gl2psBuildPolygonBoundary(tree->front);
+-}
+-
+-/********************************************************************* 
+- *
+- * Feedback buffer parser
+- *
+- *********************************************************************/
+-
+-static void gl2psAddPolyPrimitive(GLshort type, GLshort numverts, 
+-                                  GL2PSvertex *verts, GLint offset, 
+-                                  GLushort pattern, GLint factor,
+-                                  GLfloat width, char boundary)
+-{
+-  GL2PSprimitive *prim;
+-
+-  prim = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-  prim->type = type;
+-  prim->numverts = numverts;
+-  prim->verts = (GL2PSvertex*)gl2psMalloc(numverts * sizeof(GL2PSvertex));
+-  memcpy(prim->verts, verts, numverts * sizeof(GL2PSvertex));
+-  prim->boundary = boundary;
+-  prim->offset = offset;
+-  prim->pattern = pattern;
+-  prim->factor = factor;
+-  prim->width = width;
+-  prim->culled = 0;
+-
+-  /* FIXME: here we should have an option to split stretched
+-     tris/quads to enhance SIMPLE_SORT */
+-
+-  gl2psListAdd(gl2ps->primitives, &prim);
+-}
+-
+-static GLint gl2psGetVertex(GL2PSvertex *v, GLfloat *p)
+-{
+-  GLint i;
+-
+-  v->xyz[0] = p[0];
+-  v->xyz[1] = p[1];
+-  v->xyz[2] = p[2];
+-
+-  if(gl2ps->colormode == GL_COLOR_INDEX && gl2ps->colorsize > 0){
+-    i = (GLint)(p[3] + 0.5);
+-    v->rgba[0] = gl2ps->colormap[i][0];
+-    v->rgba[1] = gl2ps->colormap[i][1];
+-    v->rgba[2] = gl2ps->colormap[i][2];
+-    v->rgba[3] = gl2ps->colormap[i][3];
+-    return 4;
+-  }
+-  else{
+-    v->rgba[0] = p[3];
+-    v->rgba[1] = p[4];
+-    v->rgba[2] = p[5];
+-    v->rgba[3] = p[6];
+-    return 7;
+-  }
+-}
+-
+-static void gl2psParseFeedbackBuffer(GLint used)
+-{
+-  char flag;
+-  GLushort pattern = 0;
+-  GLboolean boundary;
+-  GLint i, sizeoffloat, count, v, vtot, offset = 0, factor = 0, auxindex = 0;
+-  GLfloat lwidth = 1.0F, psize = 1.0F;
+-  GLfloat *current;
+-  GL2PSvertex vertices[3];
+-  GL2PSprimitive *prim;
+-  GL2PSimagemap *node;
+-
+-  current = gl2ps->feedback;
+-  boundary = gl2ps->boundary = GL_FALSE;
+-
+-  while(used > 0){
+-
+-    if(GL_TRUE == boundary) gl2ps->boundary = GL_TRUE;
+-    
+-    switch((GLint)*current){
+-    case GL_POINT_TOKEN :
+-      current ++;
+-      used --;
+-      i = gl2psGetVertex(&vertices[0], current);
+-      current += i;
+-      used    -= i;
+-      gl2psAddPolyPrimitive(GL2PS_POINT, 1, vertices, 0, 
+-                            pattern, factor, psize, 0);
+-      break;
+-    case GL_LINE_TOKEN :
+-    case GL_LINE_RESET_TOKEN :
+-      current ++;
+-      used --;
+-      i = gl2psGetVertex(&vertices[0], current);
+-      current += i;
+-      used    -= i;
+-      i = gl2psGetVertex(&vertices[1], current);
+-      current += i;
+-      used    -= i;
+-      gl2psAddPolyPrimitive(GL2PS_LINE, 2, vertices, 0, 
+-                            pattern, factor, lwidth, 0);
+-      break;
+-    case GL_POLYGON_TOKEN :
+-      count = (GLint)current[1];
+-      current += 2;
+-      used -= 2;
+-      v = vtot = 0;
+-      while(count > 0 && used > 0){
+-        i = gl2psGetVertex(&vertices[v], current);
+-        gl2psAdaptVertexForBlending(&vertices[v]);
+-        current += i;
+-        used    -= i;
+-        count --;
+-        vtot++;
+-        if(v == 2){
+-          if(GL_TRUE == boundary){
+-            if(!count && vtot == 2) flag = 1|2|4;
+-            else if(!count) flag = 2|4;
+-            else if(vtot == 2) flag = 1|2;
+-            else flag = 2;
+-          }
+-          else
+-            flag = 0;
+-          gl2psAddPolyPrimitive(GL2PS_TRIANGLE, 3, vertices, offset,
+-                                pattern, factor, 1, flag);
+-          vertices[1] = vertices[2];
+-        }
+-        else
+-          v ++;
+-      }
+-      break;      
+-    case GL_BITMAP_TOKEN :
+-    case GL_DRAW_PIXEL_TOKEN :
+-    case GL_COPY_PIXEL_TOKEN :
+-      current ++;
+-      used --;
+-      i = gl2psGetVertex(&vertices[0], current);
+-      current += i;
+-      used    -= i;
+-      break;      
+-    case GL_PASS_THROUGH_TOKEN :
+-      switch((GLint)current[1]){
+-      case GL2PS_BEGIN_OFFSET_TOKEN : offset = 1; break;
+-      case GL2PS_END_OFFSET_TOKEN : offset = 0; break;
+-      case GL2PS_BEGIN_BOUNDARY_TOKEN : boundary = GL_TRUE; break;
+-      case GL2PS_END_BOUNDARY_TOKEN : boundary = GL_FALSE; break;
+-      case GL2PS_END_STIPPLE_TOKEN : pattern = factor = 0; break;
+-      case GL2PS_BEGIN_BLEND_TOKEN : gl2ps->blending = GL_TRUE; break;
+-      case GL2PS_END_BLEND_TOKEN : gl2ps->blending = GL_FALSE; break;
+-      case GL2PS_BEGIN_STIPPLE_TOKEN : 
+-        current += 2;
+-        used -= 2; 
+-        pattern = (GLushort)current[1]; 
+-        current += 2;
+-        used -= 2; 
+-        factor = (GLint)current[1]; 
+-        break;
+-      case GL2PS_SRC_BLEND_TOKEN : 
+-        current += 2; 
+-        used -= 2; 
+-        gl2ps->blendfunc[0] = (GLint)current[1];
+-        break;
+-      case GL2PS_DST_BLEND_TOKEN : 
+-        current += 2; 
+-        used -= 2; 
+-        gl2ps->blendfunc[1] = (GLint)current[1];
+-        break;
+-      case GL2PS_POINT_SIZE_TOKEN : 
+-        current += 2; 
+-        used -= 2; 
+-        psize = current[1];
+-        break;
+-      case GL2PS_LINE_WIDTH_TOKEN : 
+-        current += 2; 
+-        used -= 2; 
+-        lwidth = current[1];
+-        break;
+-      case GL2PS_IMAGEMAP_TOKEN :
+-        prim = (GL2PSprimitive *)gl2psMalloc(sizeof(GL2PSprimitive));
+-        prim->type = GL2PS_IMAGEMAP;
+-        prim->boundary = 0;
+-        prim->numverts = 4;
+-        prim->verts = (GL2PSvertex *)gl2psMalloc(4 * sizeof(GL2PSvertex));
+-        prim->culled = 0;
+-        prim->offset = 0;
+-        prim->pattern = 0;
+-        prim->factor = 0;
+-        prim->width = 1;
+-        
+-        node = (GL2PSimagemap*)gl2psMalloc(sizeof(GL2PSimagemap));
+-        node->image = (GL2PSimage*)gl2psMalloc(sizeof(GL2PSimage));
+-        node->image->type = 0;
+-        node->image->format = 0;
+-        node->next = NULL;
+-        
+-        if(gl2ps->imagemap_head == NULL)
+-          gl2ps->imagemap_head = node;
+-        else
+-          gl2ps->imagemap_tail->next = node;
+-        gl2ps->imagemap_tail = node;
+-        prim->data.image = node->image;
+-        
+-        current += 2; used -= 2;
+-        i = gl2psGetVertex(&prim->verts[0], &current[1]);
+-        current += i; used -= i;
+-        
+-        node->image->width = (GLint)current[2];
+-        current += 2; used -= 2;
+-        node->image->height = (GLint)current[2];
+-        prim->verts[0].xyz[0] = prim->verts[0].xyz[0] - (int)(node->image->width / 2) + 0.5F;
+-        prim->verts[0].xyz[1] = prim->verts[0].xyz[1] - (int)(node->image->height / 2) + 0.5F;
+-        for(i = 1; i < 4; i++){
+-          for(v = 0; v < 3; v++){
+-            prim->verts[i].xyz[v] = prim->verts[0].xyz[v];
+-            prim->verts[i].rgba[v] = prim->verts[0].rgba[v];
+-          }
+-          prim->verts[i].rgba[v] = prim->verts[0].rgba[v];
+-        }
+-        prim->verts[1].xyz[0] = prim->verts[1].xyz[0] + node->image->width;
+-        prim->verts[2].xyz[0] = prim->verts[1].xyz[0];
+-        prim->verts[2].xyz[1] = prim->verts[2].xyz[1] + node->image->height;
+-        prim->verts[3].xyz[1] = prim->verts[2].xyz[1];
+-
+-        sizeoffloat = sizeof(GLfloat);
+-        v = 2 * sizeoffloat;
+-        vtot = node->image->height + node->image->height * 
+-          ((node->image->width - 1) / 8);
+-        node->image->pixels = (GLfloat*)gl2psMalloc(v + vtot);
+-        node->image->pixels[0] = prim->verts[0].xyz[0];
+-        node->image->pixels[1] = prim->verts[0].xyz[1];
+-        
+-        for(i = 0; i < vtot; i += sizeoffloat){
+-          current += 2; used -= 2;
+-          if((vtot - i) >= 4)
+-            memcpy(&(((char*)(node->image->pixels))[i + v]), &(current[2]), sizeoffloat);
+-          else
+-            memcpy(&(((char*)(node->image->pixels))[i + v]), &(current[2]), vtot - i);
+-        }
+-        current++; used--;
+-        gl2psListAdd(gl2ps->primitives, &prim);
+-        break;
+-      case GL2PS_DRAW_PIXELS_TOKEN :
+-      case GL2PS_TEXT_TOKEN :
+-        if(auxindex < gl2psListNbr(gl2ps->auxprimitives))
+-          gl2psListAdd(gl2ps->primitives, 
+-                       gl2psListPointer(gl2ps->auxprimitives, auxindex++));
+-        else
+-          gl2psMsg(GL2PS_ERROR, "Wrong number of auxiliary tokens in buffer");
+-        break;
+-      }
+-      current += 2; 
+-      used -= 2; 
+-      break;      
+-    default :
+-      gl2psMsg(GL2PS_WARNING, "Unknown token in buffer");
+-      current ++;
+-      used --;
+-      break;
+-    }
+-  }
+-
+-  gl2psListReset(gl2ps->auxprimitives);
+-}
+-
+-/********************************************************************* 
+- *
+- * PostScript routines
+- *
+- *********************************************************************/
+-
+-static void gl2psWriteByte(unsigned char byte)
+-{
+-  unsigned char h = byte / 16;
+-  unsigned char l = byte % 16;
+-  gl2psPrintf("%x%x", h, l);
+-}
+-
+-static void gl2psPrintPostScriptPixmap(GLfloat x, GLfloat y, GL2PSimage *im)
+-{
+-  GLuint nbhex, nbyte, nrgb, nbits;
+-  GLuint row, col, ibyte, icase;
+-  GLfloat dr, dg, db, fgrey;
+-  unsigned char red = 0, green = 0, blue = 0, b, grey;
+-  GLuint width = (GLuint)im->width;
+-  GLuint height = (GLuint)im->height;
+-
+-  /* FIXME: should we define an option for these? Or just keep the
+-     8-bit per component case? */
+-  int greyscale = 0; /* set to 1 to output greyscale image */
+-  int nbit = 8; /* number of bits per color compoment (2, 4 or 8) */
+-
+-  if((width <= 0) || (height <= 0)) return;
+-
+-  gl2psPrintf("gsave\n");
+-  gl2psPrintf("%.2f %.2f translate\n", x, y); 
+-  gl2psPrintf("%d %d scale\n", width, height); 
+-
+-  if(greyscale){ /* greyscale */
+-    gl2psPrintf("/picstr %d string def\n", width); 
+-    gl2psPrintf("%d %d %d\n", width, height, 8); 
+-    gl2psPrintf("[ %d 0 0 -%d 0 %d ]\n", width, height, height); 
+-    gl2psPrintf("{ currentfile picstr readhexstring pop }\n");
+-    gl2psPrintf("image\n");
+-    for(row = 0; row < height; row++){
+-      for(col = 0; col < width; col++){ 
+-        gl2psGetRGB(im, col, row, &dr, &dg, &db);
+-        fgrey = (0.30F * dr + 0.59F * dg + 0.11F * db);
+-        grey = (unsigned char)(255. * fgrey);
+-        gl2psWriteByte(grey);
+-      }
+-      gl2psPrintf("\n");
+-    }
+-    nbhex = width * height * 2; 
+-    gl2psPrintf("%%%% nbhex digit          :%d\n", nbhex); 
+-  }
+-  else if(nbit == 2){ /* color, 2 bits for r and g and b; rgbs following each other */
+-    nrgb = width  * 3;
+-    nbits = nrgb * nbit;
+-    nbyte = nbits / 8;
+-    if((nbyte * 8) != nbits) nbyte++;
+-    gl2psPrintf("/rgbstr %d string def\n", nbyte);
+-    gl2psPrintf("%d %d %d\n", width, height, nbit);
+-    gl2psPrintf("[ %d 0 0 -%d 0 %d ]\n", width, height, height);
+-    gl2psPrintf("{ currentfile rgbstr readhexstring pop }\n");
+-    gl2psPrintf("false 3\n");
+-    gl2psPrintf("colorimage\n");
+-    for(row = 0; row < height; row++){
+-      icase = 1;
+-      col = 0;
+-      b = 0;
+-      for(ibyte = 0; ibyte < nbyte; ibyte++){
+-        if(icase == 1) {
+-          if(col < width) {
+-            gl2psGetRGB(im, col, row, &dr, &dg, &db);
+-          } 
+-          else {
+-            dr = dg = db = 0;
+-          }
+-          col++;
+-          red = (unsigned char)(3. * dr);
+-          green = (unsigned char)(3. * dg);
+-          blue = (unsigned char)(3. * db);
+-          b = red;
+-          b = (b<<2) + green;
+-          b = (b<<2) + blue;
+-          if(col < width) {
+-            gl2psGetRGB(im, col, row, &dr, &dg, &db);
+-          } 
+-          else {
+-            dr = dg = db = 0;
+-          }
+-          col++;
+-          red = (unsigned char)(3. * dr);
+-          green = (unsigned char)(3. * dg);
+-          blue = (unsigned char)(3. * db);
+-          b = (b<<2) + red;
+-          gl2psWriteByte(b);
+-          b = 0;
+-          icase++;
+-        } 
+-        else if(icase == 2) {
+-          b = green;
+-          b = (b<<2) + blue;
+-          if(col < width) {
+-            gl2psGetRGB(im, col, row, &dr, &dg, &db);
+-          }
+-          else {
+-            dr = dg = db = 0;
+-          }
+-          col++;
+-          red = (unsigned char)(3. * dr);
+-          green = (unsigned char)(3. * dg);
+-          blue = (unsigned char)(3. * db);
+-          b = (b<<2) + red;
+-          b = (b<<2) + green;
+-          gl2psWriteByte(b);
+-          b = 0;
+-          icase++;
+-        } 
+-        else if(icase == 3) {
+-          b = blue;
+-          if(col < width) {
+-            gl2psGetRGB(im, col, row, &dr, &dg, &db);
+-          }
+-          else {
+-            dr = dg = db = 0;
+-          }
+-          col++;
+-          red = (unsigned char)(3. * dr);
+-          green = (unsigned char)(3. * dg);
+-          blue = (unsigned char)(3. * db);
+-          b = (b<<2) + red;
+-          b = (b<<2) + green;
+-          b = (b<<2) + blue;
+-          gl2psWriteByte(b);
+-          b = 0;
+-          icase = 1;
+-        }
+-      }
+-      gl2psPrintf("\n");
+-    }
+-  }
+-  else if(nbit == 4){ /* color, 4 bits for r and g and b; rgbs following each other */
+-    nrgb = width  * 3;
+-    nbits = nrgb * nbit;
+-    nbyte = nbits / 8;
+-    if((nbyte * 8) != nbits) nbyte++; 
+-    gl2psPrintf("/rgbstr %d string def\n", nbyte);
+-    gl2psPrintf("%d %d %d\n", width, height, nbit);
+-    gl2psPrintf("[ %d 0 0 -%d 0 %d ]\n", width, height, height);
+-    gl2psPrintf("{ currentfile rgbstr readhexstring pop }\n");
+-    gl2psPrintf("false 3\n");
+-    gl2psPrintf("colorimage\n");
+-    for(row = 0; row < height; row++){
+-      col = 0;
+-      icase = 1;
+-      for(ibyte = 0; ibyte < nbyte; ibyte++){
+-        if(icase == 1) {
+-          if(col < width) {
+-            gl2psGetRGB(im, col, row, &dr, &dg, &db);
+-          } 
+-          else {
+-            dr = dg = db = 0;
+-          }
+-          col++;
+-          red = (unsigned char)(15. * dr);
+-          green = (unsigned char)(15. * dg);
+-          gl2psPrintf("%x%x", red, green);
+-          icase++;
+-        } 
+-        else if(icase == 2) {
+-          blue = (unsigned char)(15. * db);
+-          if(col < width) {
+-            gl2psGetRGB(im, col, row, &dr, &dg, &db);
+-          } 
+-          else {
+-            dr = dg = db = 0;
+-          }
+-          col++;
+-          red = (unsigned char)(15. * dr);
+-          gl2psPrintf("%x%x", blue, red);
+-          icase++;
+-        }
+-        else if(icase == 3) {
+-          green = (unsigned char)(15. * dg);
+-          blue = (unsigned char)(15. * db);
+-          gl2psPrintf("%x%x", green, blue);
+-          icase = 1;
+-        }
+-      }
+-      gl2psPrintf("\n");
+-    }
+-  }
+-  else{ /* 8 bit for r and g and b */
+-    nbyte = width * 3;
+-    gl2psPrintf("/rgbstr %d string def\n", nbyte);
+-    gl2psPrintf("%d %d %d\n", width, height, 8);
+-    gl2psPrintf("[ %d 0 0 -%d 0 %d ]\n", width, height, height); 
+-    gl2psPrintf("{ currentfile rgbstr readhexstring pop }\n");
+-    gl2psPrintf("false 3\n");
+-    gl2psPrintf("colorimage\n");
+-    for(row = 0; row < height; row++){
+-      for(col = 0; col < width; col++){
+-        gl2psGetRGB(im, col, row, &dr, &dg, &db);
+-        red = (unsigned char)(255. * dr);
+-        gl2psWriteByte(red);
+-        green = (unsigned char)(255. * dg);
+-        gl2psWriteByte(green);
+-        blue = (unsigned char)(255. * db);
+-        gl2psWriteByte(blue);
+-      }
+-      gl2psPrintf("\n");
+-    }
+-  }
+-  
+-  gl2psPrintf("grestore\n");
+-}
+-
+-static void gl2psPrintPostScriptImagemap(GLfloat x, GLfloat y,
+-                                         GLsizei width, GLsizei height,
+-                                         const unsigned char *imagemap){
+-  int i, size;
+-  
+-  if((width <= 0) || (height <= 0)) return;
+-  
+-  size = height + height * (width - 1) / 8;
+-  
+-  gl2psPrintf("gsave\n");
+-  gl2psPrintf("%.2f %.2f translate\n", x, y);
+-  gl2psPrintf("%d %d scale\n%d %d\ntrue\n", width, height,width, height); 
+-  gl2psPrintf("[ %d 0 0 -%d 0 %d ] {<", width, height);
+-  for(i = 0; i < size; i++){
+-    gl2psWriteByte(*imagemap);
+-    imagemap++;
+-  }
+-  gl2psPrintf(">} imagemask\ngrestore\n");
+-}
+-
+-static void gl2psPrintPostScriptHeader(void)
+-{
+-  time_t now;
+-
+-  /* Since compression is not part of the PostScript standard,
+-     compressed PostScript files are just gzipped PostScript files
+-     ("ps.gz" or "eps.gz") */
+-  gl2psPrintGzipHeader();
+-
+-  time(&now);
+-
+-  if(gl2ps->format == GL2PS_PS){
+-    gl2psPrintf("%%!PS-Adobe-3.0\n");
+-  }
+-  else{
+-    gl2psPrintf("%%!PS-Adobe-3.0 EPSF-3.0\n");
+-  }
+-
+-  gl2psPrintf("%%%%Title: %s\n"
+-              "%%%%Creator: GL2PS %d.%d.%d%s, %s\n"
+-              "%%%%For: %s\n"
+-              "%%%%CreationDate: %s"
+-              "%%%%LanguageLevel: 3\n"
+-              "%%%%DocumentData: Clean7Bit\n"
+-              "%%%%Pages: 1\n",
+-              gl2ps->title, GL2PS_MAJOR_VERSION, GL2PS_MINOR_VERSION, 
+-              GL2PS_PATCH_VERSION, GL2PS_EXTRA_VERSION, GL2PS_COPYRIGHT,
+-              gl2ps->producer, ctime(&now));
+-
+-  if(gl2ps->format == GL2PS_PS){
+-    gl2psPrintf("%%%%Orientation: %s\n"
+-                "%%%%DocumentMedia: Default %d %d 0 () ()\n",
+-                (gl2ps->options & GL2PS_LANDSCAPE) ? "Landscape" : "Portrait",
+-                (gl2ps->options & GL2PS_LANDSCAPE) ? (int)gl2ps->viewport[3] :
+-                (int)gl2ps->viewport[2], 
+-                (gl2ps->options & GL2PS_LANDSCAPE) ? (int)gl2ps->viewport[2] : 
+-                (int)gl2ps->viewport[3]);
+-  }
+-
+-  gl2psPrintf("%%%%BoundingBox: %d %d %d %d\n"
+-              "%%%%EndComments\n",
+-              (gl2ps->options & GL2PS_LANDSCAPE) ? (int)gl2ps->viewport[1] : 
+-              (int)gl2ps->viewport[0],
+-              (gl2ps->options & GL2PS_LANDSCAPE) ? (int)gl2ps->viewport[0] :
+-              (int)gl2ps->viewport[1],
+-              (gl2ps->options & GL2PS_LANDSCAPE) ? (int)gl2ps->viewport[3] : 
+-              (int)gl2ps->viewport[2],
+-              (gl2ps->options & GL2PS_LANDSCAPE) ? (int)gl2ps->viewport[2] :
+-              (int)gl2ps->viewport[3]);
+-
+-  /* RGB color: r g b C (replace C by G in output to change from rgb to gray)
+-     Grayscale: r g b G
+-     Font choose: size fontname FC
+-     Text string: (string) x y size fontname S??
+-     Rotated text string: (string) angle x y size fontname S??R
+-     Point primitive: x y size P
+-     Line width: width W
+-     Line start: x y LS
+-     Line joining last point: x y L
+-     Line end: x y LE
+-     Flat-shaded triangle: x3 y3 x2 y2 x1 y1 T
+-     Smooth-shaded triangle: x3 y3 r3 g3 b3 x2 y2 r2 g2 b2 x1 y1 r1 g1 b1 ST */
+-
+-  gl2psPrintf("%%%%BeginProlog\n"
+-              "/gl2psdict 64 dict def gl2psdict begin\n"
+-              "0 setlinecap 0 setlinejoin\n"
+-              "/tryPS3shading %s def %% set to false to force subdivision\n"
+-              "/rThreshold %g def %% red component subdivision threshold\n"
+-              "/gThreshold %g def %% green component subdivision threshold\n"
+-              "/bThreshold %g def %% blue component subdivision threshold\n",
+-              (gl2ps->options & GL2PS_NO_PS3_SHADING) ? "false" : "true",
+-              gl2ps->threshold[0], gl2ps->threshold[1], gl2ps->threshold[2]);
+-
+-  gl2psPrintf("/BD { bind def } bind def\n"
+-              "/C  { setrgbcolor } BD\n"
+-              "/G  { 0.082 mul exch 0.6094 mul add exch 0.3086 mul add neg 1.0 add setgray } BD\n"
+-              "/W  { setlinewidth } BD\n");
+-
+-  gl2psPrintf("/FC { findfont exch /SH exch def SH scalefont setfont } BD\n"
+-              "/SW { dup stringwidth pop } BD\n"
+-              "/S  { FC moveto show } BD\n"
+-              "/SBC{ FC moveto SW -2 div 0 rmoveto show } BD\n"
+-              "/SBR{ FC moveto SW neg 0 rmoveto show } BD\n"
+-              "/SCL{ FC moveto 0 SH -2 div rmoveto show } BD\n"
+-              "/SCC{ FC moveto SW -2 div SH -2 div rmoveto show } BD\n"
+-              "/SCR{ FC moveto SW neg SH -2 div rmoveto show } BD\n"
+-              "/STL{ FC moveto 0 SH neg rmoveto show } BD\n"
+-              "/STC{ FC moveto SW -2 div SH neg rmoveto show } BD\n"
+-              "/STR{ FC moveto SW neg SH neg rmoveto show } BD\n");
+-
+-  /* rotated text routines: same nameanem with R appended */
+-
+-  gl2psPrintf("/FCT { FC translate 0 0 } BD\n"
+-              "/SR  { gsave FCT moveto rotate show grestore } BD\n"  
+-              "/SBCR{ gsave FCT moveto rotate SW -2 div 0 rmoveto show grestore } BD\n"
+-              "/SBRR{ gsave FCT moveto rotate SW neg 0 rmoveto show grestore } BD\n"
+-              "/SCLR{ gsave FCT moveto rotate 0 SH -2 div rmoveto show grestore} BD\n");
+-  gl2psPrintf("/SCCR{ gsave FCT moveto rotate SW -2 div SH -2 div rmoveto show grestore} BD\n"
+-              "/SCRR{ gsave FCT moveto rotate SW neg SH -2 div rmoveto show grestore} BD\n"
+-              "/STLR{ gsave FCT moveto rotate 0 SH neg rmoveto show grestore } BD\n"
+-              "/STCR{ gsave FCT moveto rotate SW -2 div SH neg rmoveto show grestore } BD\n"
+-              "/STRR{ gsave FCT moveto rotate SW neg SH neg rmoveto show grestore } BD\n");
+-
+-  gl2psPrintf("/P  { newpath 0.0 360.0 arc closepath fill } BD\n"
+-              "/LS { newpath moveto } BD\n"
+-              "/L  { lineto } BD\n"
+-              "/LE { lineto stroke } BD\n"
+-              "/T  { newpath moveto lineto lineto closepath fill } BD\n");
+-  
+-  /* Smooth-shaded triangle with PostScript level 3 shfill operator:
+-        x3 y3 r3 g3 b3 x2 y2 r2 g2 b2 x1 y1 r1 g1 b1 STshfill */
+-
+-  gl2psPrintf("/STshfill {\n"
+-              "      /b1 exch def /g1 exch def /r1 exch def /y1 exch def /x1 exch def\n"
+-              "      /b2 exch def /g2 exch def /r2 exch def /y2 exch def /x2 exch def\n"
+-              "      /b3 exch def /g3 exch def /r3 exch def /y3 exch def /x3 exch def\n"
+-              "      gsave << /ShadingType 4 /ColorSpace [/DeviceRGB]\n"
+-              "      /DataSource [ 0 x1 y1 r1 g1 b1 0 x2 y2 r2 g2 b2 0 x3 y3 r3 g3 b3 ] >>\n"
+-              "      shfill grestore } BD\n");
+-
+-  /* Flat-shaded triangle with middle color:
+-        x3 y3 r3 g3 b3 x2 y2 r2 g2 b2 x1 y1 r1 g1 b1 Tm */
+-
+-  gl2psPrintf(/* stack : x3 y3 r3 g3 b3 x2 y2 r2 g2 b2 x1 y1 r1 g1 b1 */
+-              "/Tm { 3 -1 roll 8 -1 roll 13 -1 roll add add 3 div\n" /* r = (r1+r2+r3)/3 */
+-              /* stack : x3 y3 g3 b3 x2 y2 g2 b2 x1 y1 g1 b1 r */
+-              "      3 -1 roll 7 -1 roll 11 -1 roll add add 3 div\n" /* g = (g1+g2+g3)/3 */
+-              /* stack : x3 y3 b3 x2 y2 b2 x1 y1 b1 r g b */
+-              "      3 -1 roll 6 -1 roll 9 -1 roll add add 3 div" /* b = (b1+b2+b3)/3 */
+-              /* stack : x3 y3 x2 y2 x1 y1 r g b */
+-              " C T } BD\n");
+-
+-  /* Split triangle in four sub-triangles (at sides middle points) and call the
+-     STnoshfill procedure on each, interpolating the colors in RGB space:
+-        x3 y3 r3 g3 b3 x2 y2 r2 g2 b2 x1 y1 r1 g1 b1 STsplit
+-     (in procedure comments key: (Vi) = xi yi ri gi bi) */
+-
+-  gl2psPrintf("/STsplit {\n"
+-              "      4 index 15 index add 0.5 mul\n" /* x13 = (x1+x3)/2 */
+-              "      4 index 15 index add 0.5 mul\n" /* y13 = (y1+y3)/2 */
+-              "      4 index 15 index add 0.5 mul\n" /* r13 = (r1+r3)/2 */
+-              "      4 index 15 index add 0.5 mul\n" /* g13 = (g1+g3)/2 */
+-              "      4 index 15 index add 0.5 mul\n" /* b13 = (b1+b3)/2 */
+-              "      5 copy 5 copy 25 15 roll\n");
+-
+-  /* at his point, stack = (V3) (V13) (V13) (V13) (V2) (V1) */
+-
+-  gl2psPrintf("      9 index 30 index add 0.5 mul\n" /* x23 = (x2+x3)/2 */
+-              "      9 index 30 index add 0.5 mul\n" /* y23 = (y2+y3)/2 */
+-              "      9 index 30 index add 0.5 mul\n" /* r23 = (r2+r3)/2 */
+-              "      9 index 30 index add 0.5 mul\n" /* g23 = (g2+g3)/2 */
+-              "      9 index 30 index add 0.5 mul\n" /* b23 = (b2+b3)/2 */
+-              "      5 copy 5 copy 35 5 roll 25 5 roll 15 5 roll\n");
+-
+-  /* stack = (V3) (V13) (V23) (V13) (V23) (V13) (V23) (V2) (V1) */
+-
+-  gl2psPrintf("      4 index 10 index add 0.5 mul\n" /* x12 = (x1+x2)/2 */
+-              "      4 index 10 index add 0.5 mul\n" /* y12 = (y1+y2)/2 */
+-              "      4 index 10 index add 0.5 mul\n" /* r12 = (r1+r2)/2 */
+-              "      4 index 10 index add 0.5 mul\n" /* g12 = (g1+g2)/2 */
+-              "      4 index 10 index add 0.5 mul\n" /* b12 = (b1+b2)/2 */
+-              "      5 copy 5 copy 40 5 roll 25 5 roll 15 5 roll 25 5 roll\n");
+-  
+-  /* stack = (V3) (V13) (V23) (V13) (V12) (V23) (V13) (V1) (V12) (V23) (V12) (V2) */
+-
+-  gl2psPrintf("      STnoshfill STnoshfill STnoshfill STnoshfill } BD\n");
+-  
+-  /* Gouraud shaded triangle using recursive subdivision until the difference
+-     between corner colors does not exceed the thresholds:
+-        x3 y3 r3 g3 b3 x2 y2 r2 g2 b2 x1 y1 r1 g1 b1 STnoshfill  */
+-
+-  gl2psPrintf("/STnoshfill {\n"
+-              "      2 index 8 index sub abs rThreshold gt\n" /* |r1-r2|>rth */
+-              "      { STsplit }\n"
+-              "      { 1 index 7 index sub abs gThreshold gt\n" /* |g1-g2|>gth */
+-              "        { STsplit }\n"
+-              "        { dup 6 index sub abs bThreshold gt\n" /* |b1-b2|>bth */
+-              "          { STsplit }\n"
+-              "          { 2 index 13 index sub abs rThreshold gt\n" /* |r1-r3|>rht */
+-              "            { STsplit }\n"
+-              "            { 1 index 12 index sub abs gThreshold gt\n" /* |g1-g3|>gth */
+-              "              { STsplit }\n"
+-              "              { dup 11 index sub abs bThreshold gt\n" /* |b1-b3|>bth */
+-              "                { STsplit }\n"
+-              "                { 7 index 13 index sub abs rThreshold gt\n"); /* |r2-r3|>rht */
+-  gl2psPrintf("                  { STsplit }\n"
+-              "                  { 6 index 12 index sub abs gThreshold gt\n" /* |g2-g3|>gth */
+-              "                    { STsplit }\n"
+-              "                    { 5 index 11 index sub abs bThreshold gt\n" /* |b2-b3|>bth */
+-              "                      { STsplit }\n"
+-              "                      { Tm }\n" /* all colors sufficiently similar */
+-              "                      ifelse }\n"
+-              "                    ifelse }\n"
+-              "                  ifelse }\n"
+-              "                ifelse }\n"
+-              "              ifelse }\n"
+-              "            ifelse }\n"
+-              "          ifelse }\n"
+-              "        ifelse }\n"
+-              "      ifelse } BD\n");
+-  
+-  gl2psPrintf("tryPS3shading\n"
+-              "{ /shfill where\n"
+-              "  { /ST { STshfill } BD }\n"
+-              "  { /ST { STnoshfill } BD }\n"
+-              "  ifelse }\n"
+-              "{ /ST { STnoshfill } BD }\n"
+-              "ifelse\n");
+-
+-  gl2psPrintf("end\n"
+-              "%%%%EndProlog\n"
+-              "%%%%BeginSetup\n"
+-              "/DeviceRGB setcolorspace\n"
+-              "gl2psdict begin\n"
+-              "%%%%EndSetup\n"
+-              "%%%%Page: 1 1\n"
+-              "%%%%BeginPageSetup\n");
+-  
+-  if(gl2ps->options & GL2PS_LANDSCAPE){
+-    gl2psPrintf("%d 0 translate 90 rotate\n",
+-                (int)gl2ps->viewport[3]);
+-  }
+-
+-  gl2psPrintf("%%%%EndPageSetup\n"
+-              "mark\n"
+-              "gsave\n"
+-              "1.0 1.0 scale\n");
+-          
+-  if(gl2ps->options & GL2PS_DRAW_BACKGROUND){
+-    gl2psPrintf("%g %g %g C\n"
+-                "newpath %d %d moveto %d %d lineto %d %d lineto %d %d lineto\n"
+-                "closepath fill\n",
+-                gl2ps->bgcolor[0], gl2ps->bgcolor[1], gl2ps->bgcolor[2], 
+-                (int)gl2ps->viewport[0], (int)gl2ps->viewport[1], (int)gl2ps->viewport[2], 
+-                (int)gl2ps->viewport[1], (int)gl2ps->viewport[2], (int)gl2ps->viewport[3], 
+-                (int)gl2ps->viewport[0], (int)gl2ps->viewport[3]);
+-  }
+-}
+-
+-static void gl2psPrintPostScriptColor(GL2PSrgba rgba)
+-{
+-  if(!gl2psSameColor(gl2ps->lastrgba, rgba)){
+-    gl2psSetLastColor(rgba);
+-    gl2psPrintf("%g %g %g C\n", rgba[0], rgba[1], rgba[2]);
+-  }
+-}
+-
+-static void gl2psResetPostScriptColor(void)
+-{
+-  gl2ps->lastrgba[0] = gl2ps->lastrgba[1] = gl2ps->lastrgba[2] = -1.;
+-}
+-
+-static void gl2psEndPostScriptLine(void)
+-{
+-  int i;
+-  if(gl2ps->lastvertex.rgba[0] >= 0.){
+-    gl2psPrintf("%g %g LE\n", gl2ps->lastvertex.xyz[0], gl2ps->lastvertex.xyz[1]);
+-    for(i = 0; i < 3; i++)
+-      gl2ps->lastvertex.xyz[i] = -1.;
+-    for(i = 0; i < 4; i++)
+-      gl2ps->lastvertex.rgba[i] = -1.;
+-  }
+-}
+-
+-static void gl2psParseStipplePattern(GLushort pattern, GLint factor, 
+-                                     int *nb, int array[10])
+-{
+-  int i, n;
+-  int on[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+-  int off[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+-  char tmp[16];
+-
+-  /* extract the 16 bits from the OpenGL stipple pattern */
+-  for(n = 15; n >= 0; n--){
+-    tmp[n] = (char)(pattern & 0x01);
+-    pattern >>= 1;
+-  }
+-  /* compute the on/off pixel sequence */
+-  n = 0;
+-  for(i = 0; i < 8; i++){
+-    while(n < 16 && !tmp[n]){ off[i]++; n++; }
+-    while(n < 16 && tmp[n]){ on[i]++; n++; }
+-    if(n >= 15){ i++; break; }
+-  }
+-
+-  /* store the on/off array from right to left, starting with off
+-     pixels. The PostScript specification allows for at most 11
+-     elements in the on/off array, so we limit ourselves to 5 on/off
+-     couples (our longest possible array is thus [on4 off4 on3 off3
+-     on2 off2 on1 off1 on0 off0]) */
+-  *nb = 0;
+-  for(n = i - 1; n >= 0; n--){
+-    array[(*nb)++] = factor * on[n];
+-    array[(*nb)++] = factor * off[n];
+-    if(*nb == 10) break;
+-  }
+-}
+-
+-static int gl2psPrintPostScriptDash(GLushort pattern, GLint factor, const char *str)
+-{
+-  int len = 0, i, n, array[10];
+-
+-  if(pattern == gl2ps->lastpattern && factor == gl2ps->lastfactor)
+-    return 0;
+-  
+-  gl2ps->lastpattern = pattern;
+-  gl2ps->lastfactor = factor;
+-  
+-  if(!pattern || !factor){
+-    /* solid line */
+-    len += gl2psPrintf("[] 0 %s\n", str);
+-  }
+-  else{
+-    gl2psParseStipplePattern(pattern, factor, &n, array);
+-    len += gl2psPrintf("[");
+-    for(i = 0; i < n; i++){
+-      if(i) len += gl2psPrintf(" ");
+-      len += gl2psPrintf("%d", array[i]);
+-    }
+-    len += gl2psPrintf("] 0 %s\n", str);
+-  }
+-  
+-  return len;
+-}
+-
+-static void gl2psPrintPostScriptPrimitive(void *data)
+-{
+-  int newline;
+-  GL2PSprimitive *prim;
+-
+-  prim = *(GL2PSprimitive**)data;
+-
+-  if((gl2ps->options & GL2PS_OCCLUSION_CULL) && prim->culled) return;
+-
+-  /* Every effort is made to draw lines as connected segments (i.e.,
+-     using a single PostScript path): this is the only way to get nice
+-     line joins and to not restart the stippling for every line
+-     segment. So if the primitive to print is not a line we must first
+-     finish the current line (if any): */
+-  if(prim->type != GL2PS_LINE) gl2psEndPostScriptLine();
+-
+-  switch(prim->type){
+-  case GL2PS_POINT :
+-    gl2psPrintPostScriptColor(prim->verts[0].rgba);
+-    gl2psPrintf("%g %g %g P\n", 
+-                prim->verts[0].xyz[0], prim->verts[0].xyz[1], 0.5 * prim->width);
+-    break;
+-  case GL2PS_LINE :
+-    if(!gl2psSamePosition(gl2ps->lastvertex.xyz, prim->verts[0].xyz) ||
+-       !gl2psSameColor(gl2ps->lastrgba, prim->verts[0].rgba) ||
+-       gl2ps->lastlinewidth != prim->width ||
+-       gl2ps->lastpattern != prim->pattern ||
+-       gl2ps->lastfactor != prim->factor){
+-      /* End the current line if the new segment does not start where
+-         the last one ended, or if the color, the width or the
+-         stippling have changed (multi-stroking lines with changing
+-         colors is necessary until we use /shfill for lines;
+-         unfortunately this means that at the moment we can screw up
+-         line stippling for smooth-shaded lines) */
+-      gl2psEndPostScriptLine();
+-      newline = 1;
+-    }
+-    else{
+-      newline = 0;
+-    }
+-    if(gl2ps->lastlinewidth != prim->width){
+-      gl2ps->lastlinewidth = prim->width;
+-      gl2psPrintf("%g W\n", gl2ps->lastlinewidth);
+-    }
+-    gl2psPrintPostScriptDash(prim->pattern, prim->factor, "setdash");
+-    gl2psPrintPostScriptColor(prim->verts[0].rgba);
+-    gl2psPrintf("%g %g %s\n", prim->verts[0].xyz[0], prim->verts[0].xyz[1],
+-                newline ? "LS" : "L");
+-    gl2ps->lastvertex = prim->verts[1];
+-    break;
+-  case GL2PS_TRIANGLE :
+-    if(!gl2psVertsSameColor(prim)){
+-      gl2psResetPostScriptColor();
+-      gl2psPrintf("%g %g %g %g %g %g %g %g %g %g %g %g %g %g %g ST\n",
+-                  prim->verts[2].xyz[0], prim->verts[2].xyz[1],
+-                  prim->verts[2].rgba[0], prim->verts[2].rgba[1],
+-                  prim->verts[2].rgba[2], prim->verts[1].xyz[0],
+-                  prim->verts[1].xyz[1], prim->verts[1].rgba[0],
+-                  prim->verts[1].rgba[1], prim->verts[1].rgba[2],
+-                  prim->verts[0].xyz[0], prim->verts[0].xyz[1],
+-                  prim->verts[0].rgba[0], prim->verts[0].rgba[1],
+-                  prim->verts[0].rgba[2]);
+-    }
+-    else{
+-      gl2psPrintPostScriptColor(prim->verts[0].rgba);
+-      gl2psPrintf("%g %g %g %g %g %g T\n",
+-                  prim->verts[2].xyz[0], prim->verts[2].xyz[1],
+-                  prim->verts[1].xyz[0], prim->verts[1].xyz[1],
+-                  prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-    }
+-    break;
+-  case GL2PS_QUADRANGLE :
+-    gl2psMsg(GL2PS_WARNING, "There should not be any quad left to print");
+-    break;
+-  case GL2PS_PIXMAP :
+-    gl2psPrintPostScriptPixmap(prim->verts[0].xyz[0], prim->verts[0].xyz[1],
+-                               prim->data.image);
+-    break;
+-  case GL2PS_IMAGEMAP :
+-    if(prim->data.image->type != GL2PS_IMAGEMAP_WRITTEN){
+-      gl2psPrintPostScriptColor(prim->verts[0].rgba);
+-      gl2psPrintPostScriptImagemap(prim->data.image->pixels[0],
+-                                   prim->data.image->pixels[1],
+-                                   prim->data.image->width, prim->data.image->height,
+-                                   (const unsigned char*)(&(prim->data.image->pixels[2])));
+-      prim->data.image->type = GL2PS_IMAGEMAP_WRITTEN;
+-    }
+-    break;
+-  case GL2PS_TEXT :
+-    gl2psPrintPostScriptColor(prim->verts[0].rgba);
+-    gl2psPrintf("(%s) ", prim->data.text->str);
+-    if(prim->data.text->angle)
+-      gl2psPrintf("%g ", prim->data.text->angle);
+-    gl2psPrintf("%g %g %d /%s ",
+-                prim->verts[0].xyz[0], prim->verts[0].xyz[1],
+-                prim->data.text->fontsize, prim->data.text->fontname);
+-    switch(prim->data.text->alignment){
+-    case GL2PS_TEXT_C:
+-      gl2psPrintf(prim->data.text->angle ? "SCCR\n" : "SCC\n");
+-      break;
+-    case GL2PS_TEXT_CL:
+-      gl2psPrintf(prim->data.text->angle ? "SCLR\n" : "SCL\n");
+-      break;
+-    case GL2PS_TEXT_CR:
+-      gl2psPrintf(prim->data.text->angle ? "SCRR\n" : "SCR\n");
+-      break;
+-    case GL2PS_TEXT_B:
+-      gl2psPrintf(prim->data.text->angle ? "SBCR\n" : "SBC\n");
+-      break;
+-    case GL2PS_TEXT_BR:
+-      gl2psPrintf(prim->data.text->angle ? "SBRR\n" : "SBR\n");
+-      break;
+-    case GL2PS_TEXT_T:
+-      gl2psPrintf(prim->data.text->angle ? "STCR\n" : "STC\n");
+-      break;
+-    case GL2PS_TEXT_TL:
+-      gl2psPrintf(prim->data.text->angle ? "STLR\n" : "STL\n");
+-      break;
+-    case GL2PS_TEXT_TR:
+-      gl2psPrintf(prim->data.text->angle ? "STRR\n" : "STR\n");
+-      break;
+-    case GL2PS_TEXT_BL:
+-    default:
+-      gl2psPrintf(prim->data.text->angle ? "SR\n" : "S\n");
+-      break;
+-    }
+-    break;
+-  case GL2PS_SPECIAL :
+-    /* alignment contains the format for which the special output text
+-       is intended */
+-    if(prim->data.text->alignment == GL2PS_PS ||
+-       prim->data.text->alignment == GL2PS_EPS)
+-      gl2psPrintf("%s\n", prim->data.text->str);
+-    break;
+-  default :
+-    break;
+-  }
+-}
+-
+-static void gl2psPrintPostScriptFooter(void)
+-{
+-  gl2psPrintf("grestore\n"
+-              "showpage\n"
+-              "cleartomark\n"
+-              "%%%%PageTrailer\n"
+-              "%%%%Trailer\n"
+-              "end\n"
+-              "%%%%EOF\n");
+-
+-  gl2psPrintGzipFooter();
+-}
+-
+-static void gl2psPrintPostScriptBeginViewport(GLint viewport[4])
+-{
+-  GLint index;
+-  GLfloat rgba[4];
+-  int x = viewport[0], y = viewport[1], w = viewport[2], h = viewport[3];
+-
+-  glRenderMode(GL_FEEDBACK);
+-
+-  if(gl2ps->header){
+-    gl2psPrintPostScriptHeader();
+-    gl2ps->header = GL_FALSE;
+-  }
+-
+-  gl2psPrintf("gsave\n"
+-              "1.0 1.0 scale\n");
+-
+-  if(gl2ps->options & GL2PS_DRAW_BACKGROUND){
+-    if(gl2ps->colormode == GL_RGBA || gl2ps->colorsize == 0){
+-      glGetFloatv(GL_COLOR_CLEAR_VALUE, rgba);
+-    }
+-    else{
+-      glGetIntegerv(GL_INDEX_CLEAR_VALUE, &index);
+-      rgba[0] = gl2ps->colormap[index][0];
+-      rgba[1] = gl2ps->colormap[index][1];
+-      rgba[2] = gl2ps->colormap[index][2];
+-      rgba[3] = 1.0F;
+-    }
+-    gl2psPrintf("%g %g %g C\n"
+-                "newpath %d %d moveto %d %d lineto %d %d lineto %d %d lineto\n"
+-                "closepath fill\n",
+-                rgba[0], rgba[1], rgba[2], 
+-                x, y, x+w, y, x+w, y+h, x, y+h);
+-  }
+-    
+-  gl2psPrintf("newpath %d %d moveto %d %d lineto %d %d lineto %d %d lineto\n"
+-              "closepath clip\n",
+-              x, y, x+w, y, x+w, y+h, x, y+h);
+-  
+-}
+-
+-static GLint gl2psPrintPostScriptEndViewport(void)
+-{
+-  GLint res;
+-
+-  res = gl2psPrintPrimitives();
+-  gl2psPrintf("grestore\n");
+-  return res;
+-}
+-
+-static void gl2psPrintPostScriptFinalPrimitive(void)
+-{
+-  /* End any remaining line, if any */
+-  gl2psEndPostScriptLine();
+-}
+-
+-/* definition of the PostScript and Encapsulated PostScript backends */
+-
+-static GL2PSbackend gl2psPS = {
+-  gl2psPrintPostScriptHeader,
+-  gl2psPrintPostScriptFooter,
+-  gl2psPrintPostScriptBeginViewport,
+-  gl2psPrintPostScriptEndViewport,
+-  gl2psPrintPostScriptPrimitive,
+-  gl2psPrintPostScriptFinalPrimitive,
+-  "ps",
+-  "Postscript"
+-};
+-
+-static GL2PSbackend gl2psEPS = {
+-  gl2psPrintPostScriptHeader,
+-  gl2psPrintPostScriptFooter,
+-  gl2psPrintPostScriptBeginViewport,
+-  gl2psPrintPostScriptEndViewport,
+-  gl2psPrintPostScriptPrimitive,
+-  gl2psPrintPostScriptFinalPrimitive,
+-  "eps",
+-  "Encapsulated Postscript"
+-};
+-
+-/********************************************************************* 
+- *
+- * LaTeX routines
+- *
+- *********************************************************************/
+-
+-static void gl2psPrintTeXHeader(void)
+-{
+-  char name[256];
+-  time_t now;
+-  int i;
+-
+-  if(gl2ps->filename && strlen(gl2ps->filename) < 256){
+-    for(i = strlen(gl2ps->filename)-1; i >= 0; i--){
+-      if(gl2ps->filename[i] == '.'){
+-        strncpy(name, gl2ps->filename, i);
+-        name[i] = '\0';
+-        break;
+-      }
+-    }
+-    if(i <= 0) strcpy(name, gl2ps->filename);
+-  }
+-  else{
+-    strcpy(name, "untitled");
+-  }
+-
+-  time(&now);
+-
+-  fprintf(gl2ps->stream, 
+-          "%% Title: %s\n"
+-          "%% Creator: GL2PS %d.%d.%d%s, %s\n"
+-          "%% For: %s\n"
+-          "%% CreationDate: %s",
+-          gl2ps->title, GL2PS_MAJOR_VERSION, GL2PS_MINOR_VERSION,
+-          GL2PS_PATCH_VERSION, GL2PS_EXTRA_VERSION, GL2PS_COPYRIGHT,
+-          gl2ps->producer, ctime(&now));
+-
+-  fprintf(gl2ps->stream, 
+-          "\\setlength{\\unitlength}{1pt}\n"
+-          "\\begin{picture}(0,0)\n"
+-          "\\includegraphics{%s}\n"
+-          "\\end{picture}%%\n"
+-          "%s\\begin{picture}(%d,%d)(0,0)\n",
+-          name, (gl2ps->options & GL2PS_LANDSCAPE) ? "\\rotatebox{90}{" : "",
+-          (int)gl2ps->viewport[2], (int)gl2ps->viewport[3]);
+-}
+-
+-static void gl2psPrintTeXPrimitive(void *data)
+-{
+-  GL2PSprimitive *prim;
+-
+-  prim = *(GL2PSprimitive**)data;
+-
+-  switch(prim->type){
+-  case GL2PS_TEXT :
+-    fprintf(gl2ps->stream, "\\fontsize{%d}{0}\n\\selectfont", 
+-            prim->data.text->fontsize);
+-    fprintf(gl2ps->stream, "\\put(%g,%g){\\makebox(0,0)",
+-            prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-    switch(prim->data.text->alignment){
+-    case GL2PS_TEXT_C:
+-      fprintf(gl2ps->stream, "{");
+-      break;
+-    case GL2PS_TEXT_CL:
+-      fprintf(gl2ps->stream, "[l]{");
+-      break;
+-    case GL2PS_TEXT_CR:
+-      fprintf(gl2ps->stream, "[r]{");
+-      break;
+-    case GL2PS_TEXT_B:
+-      fprintf(gl2ps->stream, "[b]{");
+-      break;
+-    case GL2PS_TEXT_BR:
+-      fprintf(gl2ps->stream, "[br]{");
+-      break;
+-    case GL2PS_TEXT_T:
+-      fprintf(gl2ps->stream, "[t]{");
+-      break;
+-    case GL2PS_TEXT_TL:
+-      fprintf(gl2ps->stream, "[tl]{");
+-      break;
+-    case GL2PS_TEXT_TR:
+-      fprintf(gl2ps->stream, "[tr]{");
+-      break;
+-    case GL2PS_TEXT_BL:
+-    default:
+-      fprintf(gl2ps->stream, "[bl]{");
+-      break;
+-    }
+-    if(prim->data.text->angle)
+-      fprintf(gl2ps->stream, "\\rotatebox{%g}{", prim->data.text->angle);
+-    fprintf(gl2ps->stream, "\\textcolor[rgb]{%g,%g,%g}{{%s}}",
+-            prim->verts[0].rgba[0], prim->verts[0].rgba[1], prim->verts[0].rgba[2],
+-            prim->data.text->str);
+-    if(prim->data.text->angle)
+-      fprintf(gl2ps->stream, "}");
+-    fprintf(gl2ps->stream, "}}\n");
+-    break;
+-  case GL2PS_SPECIAL :
+-    /* alignment contains the format for which the special output text
+-       is intended */
+-    if (prim->data.text->alignment == GL2PS_TEX)
+-      fprintf(gl2ps->stream, "%s\n", prim->data.text->str);
+-    break;
+-  default :
+-    break;
+-  }
+-}
+-
+-static void gl2psPrintTeXFooter(void)
+-{
+-  fprintf(gl2ps->stream, "\\end{picture}%s\n",
+-          (gl2ps->options & GL2PS_LANDSCAPE) ? "}" : "");
+-}
+-
+-static void gl2psPrintTeXBeginViewport(GLint viewport[4])
+-{
+-  glRenderMode(GL_FEEDBACK);
+-  
+-  if(gl2ps->header){
+-    gl2psPrintTeXHeader();
+-    gl2ps->header = GL_FALSE;
+-  }
+-}
+-
+-static GLint gl2psPrintTeXEndViewport(void)
+-{
+-  return gl2psPrintPrimitives();
+-}
+-
+-static void gl2psPrintTeXFinalPrimitive(void)
+-{
+-}
+-
+-/* definition of the LaTeX backend */
+-
+-static GL2PSbackend gl2psTEX = {
+-  gl2psPrintTeXHeader,
+-  gl2psPrintTeXFooter,
+-  gl2psPrintTeXBeginViewport,
+-  gl2psPrintTeXEndViewport,
+-  gl2psPrintTeXPrimitive,
+-  gl2psPrintTeXFinalPrimitive,
+-  "tex",
+-  "LaTeX text"
+-};
+-
+-/********************************************************************* 
+- *
+- * PDF routines
+- *
+- *********************************************************************/
+-
+-static int gl2psPrintPDFCompressorType(void)
+-{
+-#if defined(GL2PS_HAVE_ZLIB)
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    return fprintf(gl2ps->stream, "/Filter [/FlateDecode]\n");
+-  }
+-#endif
+-  return 0;
+-}
+-
+-static int gl2psPrintPDFStrokeColor(GL2PSrgba rgba)
+-{
+-  int i, offs = 0;
+-
+-  gl2psSetLastColor(rgba);
+-  for(i = 0; i < 3; ++i){
+-    if(GL2PS_ZERO(rgba[i]))
+-      offs += gl2psPrintf("%.0f ", 0.);
+-    else if(rgba[i] < 1e-4 || rgba[i] > 1e6) /* avoid %e formatting */
+-      offs += gl2psPrintf("%f ", rgba[i]);
+-    else
+-      offs += gl2psPrintf("%g ", rgba[i]);
+-  }
+-  offs += gl2psPrintf("RG\n");
+-  return offs;
+-}
+-
+-static int gl2psPrintPDFFillColor(GL2PSrgba rgba)
+-{
+-  int i, offs = 0;
+-  
+-  for(i = 0; i < 3; ++i){
+-    if(GL2PS_ZERO(rgba[i]))
+-      offs += gl2psPrintf("%.0f ", 0.);
+-    else if(rgba[i] < 1e-4 || rgba[i] > 1e6) /* avoid %e formatting */
+-      offs += gl2psPrintf("%f ", rgba[i]);
+-    else
+-      offs += gl2psPrintf("%g ", rgba[i]);
+-  }
+-  offs += gl2psPrintf("rg\n");
+-  return offs;
+-}
+-
+-static int gl2psPrintPDFLineWidth(GLfloat lw)
+-{
+-  if(GL2PS_ZERO(lw))
+-    return gl2psPrintf("%.0f w\n", 0.);
+-  else if(lw < 1e-4 || lw > 1e6) /* avoid %e formatting */
+-    return gl2psPrintf("%f w\n", lw);
+-  else
+-    return gl2psPrintf("%g w\n", lw);
+-}
+-
+-static void gl2psPutPDFText(GL2PSstring *text, int cnt, GLfloat x, GLfloat y)
+-{
+-  GLfloat rad, crad, srad;
+-  
+-  if(text->angle == 0.0F){
+-    gl2ps->streamlength += gl2psPrintf
+-      ("BT\n"
+-       "/F%d %d Tf\n"
+-       "%f %f Td\n"
+-       "(%s) Tj\n"
+-       "ET\n", 
+-       cnt, text->fontsize, x, y, text->str);
+-  }
+-  else{
+-    rad = (GLfloat)M_PI * text->angle / 180.0F;
+-    srad = (GLfloat)sin(rad);
+-    crad = (GLfloat)cos(rad);
+-    gl2ps->streamlength += gl2psPrintf
+-      ("BT\n"
+-       "/F%d %d Tf\n"
+-       "%f %f %f %f %f %f Tm\n"
+-       "(%s) Tj\n"
+-       "ET\n",
+-       cnt, text->fontsize, crad, srad, -srad, crad, x, y, text->str);
+-  }
+-}
+-
+-static void gl2psPutPDFImage(GL2PSimage *image, int cnt, GLfloat x, GLfloat y)
+-{
+-  gl2ps->streamlength += gl2psPrintf
+-    ("q\n"
+-     "%d 0 0 %d %f %f cm\n"
+-     "/Im%d Do\n"
+-     "Q\n",
+-     (int)image->width, (int)image->height, x, y, cnt);
+-}
+-
+-static void gl2psPDFstacksInit(void)
+-{
+-  gl2ps->objects_stack = 7 /* FIXED_XREF_ENTRIES */ + 1; 
+-  gl2ps->extgs_stack = 0;   
+-  gl2ps->font_stack = 0;    
+-  gl2ps->im_stack = 0;      
+-  gl2ps->trgroupobjects_stack = 0;    
+-  gl2ps->shader_stack = 0;  
+-  gl2ps->mshader_stack = 0; 
+-}
+-
+-static void gl2psPDFgroupObjectInit(GL2PSpdfgroup *gro)
+-{
+-  if(!gro)
+-    return;
+-  
+-  gro->ptrlist = NULL;
+-  gro->fontno = gro->gsno = gro->imno = gro->maskshno = gro->shno 
+-    = gro->trgroupno = gro->fontobjno = gro->imobjno = gro->shobjno 
+-    = gro->maskshobjno = gro->gsobjno = gro->trgroupobjno = -1;
+-}
+-
+-/* Build up group objects and assign name and object numbers */
+-
+-static void gl2psPDFgroupListInit(void)
+-{
+-  int i;
+-  GL2PSprimitive *p = NULL;
+-  GL2PSpdfgroup gro;
+-  int lasttype = GL2PS_NO_TYPE;
+-  GL2PSrgba lastrgba = {-1.0F, -1.0F, -1.0F, -1.0F};
+-  GLushort lastpattern = 0;
+-  GLint lastfactor = 0;
+-  GLfloat lastwidth = 1;
+-  GL2PStriangle lastt, tmpt;
+-  int lastTriangleWasNotSimpleWithSameColor = 0;
+-
+-  if(!gl2ps->pdfprimlist)
+-    return;
+-
+-  gl2ps->pdfgrouplist = gl2psListCreate(500, 500, sizeof(GL2PSpdfgroup));
+-  gl2psInitTriangle(&lastt);
+-
+-  for(i = 0; i < gl2psListNbr(gl2ps->pdfprimlist); ++i){  
+-    p = *(GL2PSprimitive**)gl2psListPointer(gl2ps->pdfprimlist, i);
+-    switch(p->type){
+-    case GL2PS_PIXMAP:
+-      gl2psPDFgroupObjectInit(&gro);
+-      gro.ptrlist = gl2psListCreate(1, 2, sizeof(GL2PSprimitive*));
+-      gro.imno = gl2ps->im_stack++;
+-      gl2psListAdd(gro.ptrlist, &p);
+-      gl2psListAdd(gl2ps->pdfgrouplist, &gro);
+-      break;
+-    case GL2PS_TEXT:
+-      gl2psPDFgroupObjectInit(&gro);
+-      gro.ptrlist = gl2psListCreate(1, 2, sizeof(GL2PSprimitive*));
+-      gro.fontno = gl2ps->font_stack++;
+-      gl2psListAdd(gro.ptrlist, &p);
+-      gl2psListAdd(gl2ps->pdfgrouplist, &gro);
+-      break;
+-    case GL2PS_LINE:
+-      if(lasttype != p->type || lastwidth != p->width || 
+-         lastpattern != p->pattern || lastfactor != p->factor ||
+-         !gl2psSameColor(p->verts[0].rgba, lastrgba)){
+-        gl2psPDFgroupObjectInit(&gro);
+-        gro.ptrlist = gl2psListCreate(1, 2, sizeof(GL2PSprimitive*));
+-        gl2psListAdd(gro.ptrlist, &p);
+-        gl2psListAdd(gl2ps->pdfgrouplist, &gro);
+-      }
+-      else{
+-        gl2psListAdd(gro.ptrlist, &p);
+-      }
+-      lastpattern = p->pattern;
+-      lastfactor = p->factor;
+-      lastwidth = p->width;
+-      lastrgba[0] = p->verts[0].rgba[0];
+-      lastrgba[1] = p->verts[0].rgba[1];
+-      lastrgba[2] = p->verts[0].rgba[2];
+-      break;
+-    case GL2PS_POINT:
+-      if(lasttype != p->type || lastwidth != p->width || 
+-         !gl2psSameColor(p->verts[0].rgba, lastrgba)){
+-        gl2psPDFgroupObjectInit(&gro);
+-        gro.ptrlist = gl2psListCreate(1,2,sizeof(GL2PSprimitive*));
+-        gl2psListAdd(gro.ptrlist, &p);
+-        gl2psListAdd(gl2ps->pdfgrouplist, &gro);
+-      }
+-      else{
+-        gl2psListAdd(gro.ptrlist, &p);
+-      }
+-      lastwidth = p->width;
+-      lastrgba[0] = p->verts[0].rgba[0];
+-      lastrgba[1] = p->verts[0].rgba[1];
+-      lastrgba[2] = p->verts[0].rgba[2];
+-      break;
+-    case GL2PS_TRIANGLE:
+-      gl2psFillTriangleFromPrimitive(&tmpt, p, GL_TRUE);
+-      lastTriangleWasNotSimpleWithSameColor = 
+-        !(tmpt.prop & T_CONST_COLOR && tmpt.prop & T_ALPHA_1) ||
+-        !gl2psSameColor(tmpt.vertex[0].rgba, lastt.vertex[0].rgba);
+-      if(lasttype == p->type && tmpt.prop == lastt.prop && 
+-         lastTriangleWasNotSimpleWithSameColor){
+-        /* TODO Check here for last alpha */
+-        gl2psListAdd(gro.ptrlist, &p);
+-      }
+-      else{
+-        gl2psPDFgroupObjectInit(&gro);
+-        gro.ptrlist = gl2psListCreate(1, 2, sizeof(GL2PSprimitive*));
+-        gl2psListAdd(gro.ptrlist, &p);
+-        gl2psListAdd(gl2ps->pdfgrouplist, &gro);
+-      }
+-      lastt = tmpt;
+-      break;
+-    default:
+-      break;
+-    } 
+-    lasttype = p->type;
+-  }
+-}
+-
+-static void gl2psSortOutTrianglePDFgroup(GL2PSpdfgroup *gro)
+-{
+-  GL2PStriangle t;
+-  GL2PSprimitive *prim = NULL;
+-  
+-  if(!gro)
+-    return;
+-
+-  if(!gl2psListNbr(gro->ptrlist))
+-    return;
+-
+-  prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, 0);
+-
+-  if(prim->type != GL2PS_TRIANGLE)
+-    return;
+-
+-  gl2psFillTriangleFromPrimitive(&t, prim, GL_TRUE);
+-  
+-  if(t.prop & T_CONST_COLOR && t.prop & T_ALPHA_LESS_1){        
+-    gro->gsno = gl2ps->extgs_stack++; 
+-    gro->gsobjno = gl2ps->objects_stack ++;
+-  }
+-  else if(t.prop & T_CONST_COLOR && t.prop & T_VAR_ALPHA){              
+-    gro->gsno = gl2ps->extgs_stack++;
+-    gro->gsobjno = gl2ps->objects_stack++;
+-    gro->trgroupno = gl2ps->trgroupobjects_stack++; 
+-    gro->trgroupobjno = gl2ps->objects_stack++;
+-    gro->maskshno = gl2ps->mshader_stack++;
+-    gro->maskshobjno = gl2ps->objects_stack++;
+-  }
+-  else if(t.prop & T_VAR_COLOR && t.prop & T_ALPHA_1){          
+-    gro->shno = gl2ps->shader_stack++;
+-    gro->shobjno = gl2ps->objects_stack++;
+-  }
+-  else if(t.prop & T_VAR_COLOR && t.prop & T_ALPHA_LESS_1){             
+-    gro->gsno = gl2ps->extgs_stack++;
+-    gro->gsobjno = gl2ps->objects_stack++;
+-    gro->shno = gl2ps->shader_stack++; 
+-    gro->shobjno = gl2ps->objects_stack++;
+-  }
+-  else if(t.prop & T_VAR_COLOR && t.prop & T_VAR_ALPHA){                
+-    gro->gsno = gl2ps->extgs_stack++;
+-    gro->gsobjno = gl2ps->objects_stack++;
+-    gro->shno = gl2ps->shader_stack++; 
+-    gro->shobjno = gl2ps->objects_stack++;
+-    gro->trgroupno = gl2ps->trgroupobjects_stack++; 
+-    gro->trgroupobjno = gl2ps->objects_stack++;
+-    gro->maskshno = gl2ps->mshader_stack++;
+-    gro->maskshobjno = gl2ps->objects_stack++;
+-  }
+-}
+-
+-/* Main stream data */
+-
+-static void gl2psPDFgroupListWriteMainStream(void)
+-{
+-  int i, j, lastel;
+-  GL2PSprimitive *prim = NULL, *prev = NULL;
+-  GL2PSpdfgroup *gro;
+-  GL2PStriangle t;
+-
+-  if(!gl2ps->pdfgrouplist)
+-    return;
+-
+-  for(i = 0; i < gl2psListNbr(gl2ps->pdfgrouplist); ++i){
+-    gro = (GL2PSpdfgroup*)gl2psListPointer(gl2ps->pdfgrouplist, i);
+-
+-    lastel = gl2psListNbr(gro->ptrlist) - 1;
+-    if(lastel < 0)
+-      continue;
+-
+-    prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, 0);
+-
+-    switch(prim->type){
+-    case GL2PS_POINT:
+-      gl2ps->streamlength += gl2psPrintf("1 J\n");
+-      gl2ps->streamlength += gl2psPrintPDFLineWidth(prim->width);
+-      gl2ps->streamlength += gl2psPrintPDFStrokeColor(prim->verts[0].rgba);
+-      for(j = 0; j <= lastel; ++j){  
+-        prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, j);
+-        gl2ps->streamlength +=
+-          gl2psPrintf("%f %f m %f %f l\n",
+-                      prim->verts[0].xyz[0], prim->verts[0].xyz[1],
+-                      prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-      }
+-      gl2ps->streamlength += gl2psPrintf("S\n"); 
+-      gl2ps->streamlength += gl2psPrintf("0 J\n");
+-      break;
+-    case GL2PS_LINE:
+-      /* We try to use as few paths as possible to draw lines, in
+-         order to get nice stippling even when the individual segments
+-         are smaller than the stipple */
+-      gl2ps->streamlength += gl2psPrintPDFLineWidth(prim->width);
+-      gl2ps->streamlength += gl2psPrintPDFStrokeColor(prim->verts[0].rgba);
+-      gl2ps->streamlength += gl2psPrintPostScriptDash(prim->pattern, prim->factor, "d");
+-      /* start new path */
+-      gl2ps->streamlength += 
+-        gl2psPrintf("%f %f m\n", 
+-                    prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-      
+-      for(j = 1; j <= lastel; ++j){
+-        prev = prim;
+-        prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, j);
+-        if(!gl2psSamePosition(prim->verts[0].xyz, prev->verts[1].xyz)){
+-          /* the starting point of the new segment does not match the
+-             end point of the previous line, so we end the current
+-             path and start a new one */
+-          gl2ps->streamlength += 
+-            gl2psPrintf("%f %f l\n", 
+-                        prev->verts[1].xyz[0], prev->verts[1].xyz[1]);
+-          gl2ps->streamlength += 
+-            gl2psPrintf("%f %f m\n", 
+-                        prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-        }
+-        else{
+-          /* the two segements are connected, so we just append to the
+-             current path */
+-          gl2ps->streamlength += 
+-            gl2psPrintf("%f %f l\n",
+-                        prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-        }
+-      }
+-      /* end last path */
+-      gl2ps->streamlength += 
+-        gl2psPrintf("%f %f l\n", 
+-                    prim->verts[1].xyz[0], prim->verts[1].xyz[1]);
+-      gl2ps->streamlength += gl2psPrintf("S\n");
+-      break;
+-    case GL2PS_TRIANGLE:
+-      gl2psFillTriangleFromPrimitive(&t, prim, GL_TRUE);
+-      gl2psSortOutTrianglePDFgroup(gro);
+-      
+-      /* No alpha and const color: Simple PDF draw orders  */
+-      if(t.prop & T_CONST_COLOR && t.prop & T_ALPHA_1){         
+-        gl2ps->streamlength += gl2psPrintPDFFillColor(t.vertex[0].rgba);        
+-        for(j = 0; j <= lastel; ++j){  
+-          prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, j);
+-          gl2psFillTriangleFromPrimitive(&t, prim, GL_FALSE);
+-          gl2ps->streamlength 
+-            += gl2psPrintf("%f %f m\n"
+-                           "%f %f l\n"
+-                           "%f %f l\n"
+-                           "h f\n",
+-                           t.vertex[0].xyz[0], t.vertex[0].xyz[1],
+-                           t.vertex[1].xyz[0], t.vertex[1].xyz[1],
+-                           t.vertex[2].xyz[0], t.vertex[2].xyz[1]);
+-        }
+-      }
+-      /* Const alpha < 1 and const color: Simple PDF draw orders 
+-         and an extra extended Graphics State for the alpha const */
+-      else if(t.prop & T_CONST_COLOR && t.prop & T_ALPHA_LESS_1){               
+-        gl2ps->streamlength += gl2psPrintf("q\n"
+-                                           "/GS%d gs\n",
+-                                           gro->gsno);
+-        gl2ps->streamlength += gl2psPrintPDFFillColor(prim->verts[0].rgba);
+-        for(j = 0; j <= lastel; ++j){  
+-          prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, j);
+-          gl2psFillTriangleFromPrimitive(&t, prim, GL_FALSE);
+-          gl2ps->streamlength 
+-            += gl2psPrintf("%f %f m\n"
+-                           "%f %f l\n"
+-                           "%f %f l\n"
+-                           "h f\n",
+-                           t.vertex[0].xyz[0], t.vertex[0].xyz[1],
+-                           t.vertex[1].xyz[0], t.vertex[1].xyz[1],
+-                           t.vertex[2].xyz[0], t.vertex[2].xyz[1]);
+-        }
+-        gl2ps->streamlength += gl2psPrintf("Q\n");
+-      }
+-      /* Variable alpha and const color: Simple PDF draw orders 
+-         and an extra extended Graphics State + Xobject + Shader 
+-         object for the alpha mask */
+-      else if(t.prop & T_CONST_COLOR && t.prop & T_VAR_ALPHA){          
+-        gl2ps->streamlength += gl2psPrintf("q\n"
+-                                           "/GS%d gs\n"
+-                                           "/TrG%d Do\n",
+-                                           gro->gsno, gro->trgroupno);
+-        gl2ps->streamlength += gl2psPrintPDFFillColor(prim->verts[0].rgba);
+-        for(j = 0; j <= lastel; ++j){  
+-          prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, j);
+-          gl2psFillTriangleFromPrimitive(&t, prim, GL_FALSE);
+-          gl2ps->streamlength 
+-            += gl2psPrintf("%f %f m\n"
+-                           "%f %f l\n"
+-                           "%f %f l\n"
+-                           "h f\n",
+-                           t.vertex[0].xyz[0], t.vertex[0].xyz[1],
+-                           t.vertex[1].xyz[0], t.vertex[1].xyz[1],
+-                           t.vertex[2].xyz[0], t.vertex[2].xyz[1]);
+-        }
+-        gl2ps->streamlength += gl2psPrintf("Q\n");
+-      }
+-      /* Variable color and no alpha: Shader Object for the colored
+-         triangle(s) */
+-      else if(t.prop & T_VAR_COLOR && t.prop & T_ALPHA_1){              
+-        gl2ps->streamlength += gl2psPrintf("/Sh%d sh\n", gro->shno);
+-      }
+-      /* Variable color and const alpha < 1: Shader Object for the 
+-         colored triangle(s) and an extra extended Graphics State 
+-         for the alpha const */
+-      else if(t.prop & T_VAR_COLOR && t.prop & T_ALPHA_LESS_1){         
+-        gl2ps->streamlength += gl2psPrintf("q\n"
+-                                           "/GS%d gs\n"
+-                                           "/Sh%d sh\n"
+-                                           "Q\n",
+-                                           gro->gsno, gro->shno);
+-      }
+-      /* Variable alpha and color: Shader Object for the colored 
+-         triangle(s) and an extra extended Graphics State 
+-         + Xobject + Shader object for the alpha mask */
+-      else if(t.prop & T_VAR_COLOR && t.prop & T_VAR_ALPHA){            
+-        gl2ps->streamlength += gl2psPrintf("q\n"
+-                                           "/GS%d gs\n"
+-                                           "/TrG%d Do\n"
+-                                           "/Sh%d sh\n"
+-                                           "Q\n",
+-                                           gro->gsno, gro->trgroupno, gro->shno);
+-      }
+-      break;
+-    case GL2PS_PIXMAP:
+-      for(j = 0; j <= lastel; ++j){
+-        prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, j);
+-        gl2psPutPDFImage(prim->data.image, gro->imno, prim->verts[0].xyz[0], 
+-                         prim->verts[0].xyz[1]);
+-      }
+-      break;
+-    case GL2PS_TEXT:
+-      for(j = 0; j <= lastel; ++j){  
+-        prim = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, j);
+-        gl2ps->streamlength += gl2psPrintPDFFillColor(prim->verts[0].rgba);
+-        gl2psPutPDFText(prim->data.text, gro->fontno, prim->verts[0].xyz[0],
+-                        prim->verts[0].xyz[1]);
+-      }
+-      break;
+-    default:
+-      break;
+-    } 
+-  }
+-}
+-
+-/* Graphics State names */
+-
+-static int gl2psPDFgroupListWriteGStateResources(void)
+-{
+-  GL2PSpdfgroup *gro;
+-  int offs = 0;
+-  int i;
+-
+-  offs += fprintf(gl2ps->stream,
+-                  "/ExtGState\n" 
+-                  "<<\n"
+-                  "/GSa 7 0 R\n");
+-  for(i = 0; i < gl2psListNbr(gl2ps->pdfgrouplist); ++i){  
+-    gro = (GL2PSpdfgroup*)gl2psListPointer(gl2ps->pdfgrouplist, i); 
+-    if(gro->gsno >= 0)
+-      offs += fprintf(gl2ps->stream, "/GS%d %d 0 R\n", gro->gsno, gro->gsobjno);
+-  }
+-  offs += fprintf(gl2ps->stream, ">>\n"); 
+-  return offs;
+-}
+-
+-/* Main Shader names */
+-
+-static int gl2psPDFgroupListWriteShaderResources(void)
+-{
+-  GL2PSpdfgroup *gro;
+-  int offs = 0;
+-  int i;
+-
+-  offs += fprintf(gl2ps->stream,
+-                  "/Shading\n"
+-                  "<<\n");
+-  for(i = 0; i < gl2psListNbr(gl2ps->pdfgrouplist); ++i){  
+-    gro = (GL2PSpdfgroup*)gl2psListPointer(gl2ps->pdfgrouplist, i); 
+-    if(gro->shno >= 0)
+-      offs += fprintf(gl2ps->stream, "/Sh%d %d 0 R\n", gro->shno, gro->shobjno);
+-    if(gro->maskshno >= 0)
+-      offs += fprintf(gl2ps->stream, "/TrSh%d %d 0 R\n", gro->maskshno, gro->maskshobjno);
+-  }
+-  offs += fprintf(gl2ps->stream,">>\n");  
+-  return offs;
+-}
+-
+-/* Images & Mask Shader XObject names */
+-
+-static int gl2psPDFgroupListWriteXObjectResources(void)
+-{
+-  int i;
+-  GL2PSprimitive *p = NULL;
+-  GL2PSpdfgroup *gro;
+-  int offs = 0;
+-
+-  offs += fprintf(gl2ps->stream,
+-                  "/XObject\n"
+-                  "<<\n");
+-
+-  for(i = 0; i < gl2psListNbr(gl2ps->pdfgrouplist); ++i){  
+-    gro = (GL2PSpdfgroup*)gl2psListPointer(gl2ps->pdfgrouplist, i); 
+-    if(!gl2psListNbr(gro->ptrlist))
+-      continue;
+-    p = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, 0);
+-    switch(p->type){
+-    case GL2PS_PIXMAP:
+-      gro->imobjno = gl2ps->objects_stack++;
+-      if(GL_RGBA == p->data.image->format)  /* reserve one object for image mask */
+-        gl2ps->objects_stack++;
+-      offs += fprintf(gl2ps->stream, "/Im%d %d 0 R\n", gro->imno, gro->imobjno);
+-    case GL2PS_TRIANGLE:
+-      if(gro->trgroupno >=0)
+-        offs += fprintf(gl2ps->stream, "/TrG%d %d 0 R\n", gro->trgroupno, gro->trgroupobjno);
+-      break;
+-    default:
+-      break;
+-    }
+-  }
+-  offs += fprintf(gl2ps->stream,">>\n");
+-  return offs;
+-}
+-
+-/* Font names */
+-
+-static int gl2psPDFgroupListWriteFontResources(void)
+-{
+-  int i;
+-  GL2PSpdfgroup *gro;
+-  int offs = 0;
+-
+-  offs += fprintf(gl2ps->stream, "/Font\n<<\n");
+-
+-  for(i = 0; i < gl2psListNbr(gl2ps->pdfgrouplist); ++i){  
+-    gro = (GL2PSpdfgroup*)gl2psListPointer(gl2ps->pdfgrouplist, i); 
+-    if(gro->fontno < 0)
+-      continue;
+-    gro->fontobjno = gl2ps->objects_stack++;
+-    offs += fprintf(gl2ps->stream, "/F%d %d 0 R\n", gro->fontno, gro->fontobjno);
+-  }
+-  offs += fprintf(gl2ps->stream, ">>\n");
+-
+-  return offs;
+-}
+-
+-static void gl2psPDFgroupListDelete(void)
+-{
+-  int i;
+-  GL2PSpdfgroup *gro = NULL;
+-  
+-  if(!gl2ps->pdfgrouplist)
+-    return;
+-
+-  for(i = 0; i < gl2psListNbr(gl2ps->pdfgrouplist); ++i){ 
+-    gro = (GL2PSpdfgroup*)gl2psListPointer(gl2ps->pdfgrouplist,i);
+-    gl2psListDelete(gro->ptrlist);
+-  }
+-
+-  gl2psListDelete(gl2ps->pdfgrouplist);
+-  gl2ps->pdfgrouplist = NULL;
+-}
+-
+-/* Print 1st PDF object - file info */
+-
+-static int gl2psPrintPDFInfo(void)
+-{
+-  int offs;
+-  time_t now;
+-  struct tm *newtime;
+-  
+-  time(&now);
+-  newtime = gmtime(&now);
+-  
+-  offs = fprintf(gl2ps->stream,
+-                 "1 0 obj\n"
+-                 "<<\n"
+-                 "/Title (%s)\n"
+-                 "/Creator (GL2PS %d.%d.%d%s, %s)\n"
+-                 "/Producer (%s)\n",
+-                 gl2ps->title, GL2PS_MAJOR_VERSION, GL2PS_MINOR_VERSION,
+-                 GL2PS_PATCH_VERSION, GL2PS_EXTRA_VERSION, GL2PS_COPYRIGHT,
+-                 gl2ps->producer);
+-  
+-  if(!newtime){
+-    offs += fprintf(gl2ps->stream, 
+-                    ">>\n"
+-                    "endobj\n");
+-    return offs;
+-  }
+-  
+-  offs += fprintf(gl2ps->stream, 
+-                  "/CreationDate (D:%d%02d%02d%02d%02d%02d)\n"
+-                  ">>\n"
+-                  "endobj\n",
+-                  newtime->tm_year+1900, 
+-                  newtime->tm_mon+1, 
+-                  newtime->tm_mday,
+-                  newtime->tm_hour,
+-                  newtime->tm_min,
+-                  newtime->tm_sec);
+-  return offs;
+-}
+-
+-/* Create catalog and page structure - 2nd and 3th PDF object */
+-
+-static int gl2psPrintPDFCatalog(void)
+-{
+-  return fprintf(gl2ps->stream, 
+-                 "2 0 obj\n"
+-                 "<<\n"
+-                 "/Type /Catalog\n"
+-                 "/Pages 3 0 R\n"
+-                 ">>\n"
+-                 "endobj\n");
+-}
+-
+-static int gl2psPrintPDFPages(void)
+-{
+-  return fprintf(gl2ps->stream, 
+-                 "3 0 obj\n"
+-                 "<<\n" 
+-                 "/Type /Pages\n"
+-                 "/Kids [6 0 R]\n"
+-                 "/Count 1\n"
+-                 ">>\n"
+-                 "endobj\n");
+-}
+-
+-/* Open stream for data - graphical objects, fonts etc. PDF object 4 */
+-
+-static int gl2psOpenPDFDataStream(void)
+-{
+-  int offs = 0;
+-  
+-  offs += fprintf(gl2ps->stream, 
+-                  "4 0 obj\n"
+-                  "<<\n" 
+-                  "/Length 5 0 R\n" );
+-  offs += gl2psPrintPDFCompressorType();
+-  offs += fprintf(gl2ps->stream, 
+-                  ">>\n"
+-                  "stream\n");
+-  return offs;
+-}
+-
+-/* Stream setup - Graphics state, fill background if allowed */
+-
+-static int gl2psOpenPDFDataStreamWritePreface(void)
+-{
+-  int offs;
+-
+-  offs = gl2psPrintf("/GSa gs\n");
+-  
+-  if(gl2ps->options & GL2PS_DRAW_BACKGROUND){
+-    offs += gl2psPrintPDFFillColor(gl2ps->bgcolor);
+-    offs += gl2psPrintf("%d %d %d %d re\n",
+-                        (int)gl2ps->viewport[0], (int)gl2ps->viewport[1],
+-                        (int)gl2ps->viewport[2], (int)gl2ps->viewport[3]);
+-    offs += gl2psPrintf("f\n");  
+-  }
+-  return offs;
+-}
+-
+-/* Use the functions above to create the first part of the PDF*/
+-
+-static void gl2psPrintPDFHeader(void)
+-{
+-  int offs = 0;
+-  gl2ps->pdfprimlist = gl2psListCreate(500, 500, sizeof(GL2PSprimitive*));
+-  gl2psPDFstacksInit();
+-
+-  gl2ps->xreflist = (int*)gl2psMalloc(sizeof(int) * gl2ps->objects_stack); 
+-
+-#if defined(GL2PS_HAVE_ZLIB)
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    gl2psSetupCompress();
+-  }
+-#endif    
+-  gl2ps->xreflist[0] = 0;
+-  offs += fprintf(gl2ps->stream, "%%PDF-1.4\n");
+-  gl2ps->xreflist[1] = offs;
+-  
+-  offs += gl2psPrintPDFInfo();
+-  gl2ps->xreflist[2] = offs;
+-  
+-  offs += gl2psPrintPDFCatalog();
+-  gl2ps->xreflist[3] = offs;
+-  
+-  offs += gl2psPrintPDFPages();
+-  gl2ps->xreflist[4] = offs;
+-  
+-  offs += gl2psOpenPDFDataStream();
+-  gl2ps->xreflist[5] = offs; /* finished in gl2psPrintPDFFooter */
+-  gl2ps->streamlength = gl2psOpenPDFDataStreamWritePreface();
+-}
+-
+-/* The central primitive drawing */
+-
+-static void gl2psPrintPDFPrimitive(void *data)
+-{
+-  GL2PSprimitive *prim = *(GL2PSprimitive**)data;
+-
+-  if((gl2ps->options & GL2PS_OCCLUSION_CULL) && prim->culled) 
+-    return;
+-
+-  prim = gl2psCopyPrimitive(prim); /* deep copy */
+-  gl2psListAdd(gl2ps->pdfprimlist, &prim);
+-}
+-
+-/* close stream and ... */
+-
+-static int gl2psClosePDFDataStream(void)
+-{
+-  int offs = 0;
+- 
+-#if defined(GL2PS_HAVE_ZLIB)
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    if(Z_OK != gl2psDeflate())
+-      gl2psMsg(GL2PS_ERROR, "Zlib deflate error");
+-    else
+-      fwrite(gl2ps->compress->dest, gl2ps->compress->destLen, 1, gl2ps->stream);
+-    gl2ps->streamlength += gl2ps->compress->destLen;
+-    
+-    offs += gl2ps->streamlength;
+-    gl2psFreeCompress();
+-  }
+-#endif 
+-  
+-  offs += fprintf(gl2ps->stream, 
+-                  "endstream\n"
+-                  "endobj\n");
+-  return offs;
+-}
+-
+-/* ... write the now known length object */
+-
+-static int gl2psPrintPDFDataStreamLength(int val)
+-{
+-  return fprintf(gl2ps->stream,
+-                 "5 0 obj\n"
+-                 "%d\n"
+-                 "endobj\n", val);
+-}
+-
+-/* Put the info created before in PDF objects */
+-
+-static int gl2psPrintPDFOpenPage(void)
+-{
+-  int offs;
+-  
+-  /* Write fixed part */
+-  
+-  offs = fprintf(gl2ps->stream, 
+-                 "6 0 obj\n"
+-                 "<<\n" 
+-                 "/Type /Page\n"
+-                 "/Parent 3 0 R\n"
+-                 "/MediaBox [%d %d %d %d]\n",
+-                 (int)gl2ps->viewport[0], (int)gl2ps->viewport[1],
+-                 (int)gl2ps->viewport[2], (int)gl2ps->viewport[3]);
+-  
+-  if(gl2ps->options & GL2PS_LANDSCAPE)
+-    offs += fprintf(gl2ps->stream, "/Rotate -90\n");
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "/Contents 4 0 R\n"
+-                  "/Resources\n" 
+-                  "<<\n" 
+-                  "/ProcSet [/PDF /Text /ImageB /ImageC]  %%/ImageI\n");
+-  
+-  return offs;
+-
+-  /* End fixed part, proceeds in gl2psPDFgroupListWriteVariableResources() */
+-}
+-
+-static int gl2psPDFgroupListWriteVariableResources(void)
+-{
+-  int offs = 0;
+-  
+-  /* a) Graphics States for shader alpha masks*/
+-  offs += gl2psPDFgroupListWriteGStateResources();  
+-  
+-  /* b) Shader and shader masks */ 
+-  offs += gl2psPDFgroupListWriteShaderResources();  
+- 
+-  /* c) XObjects (Images & Shader Masks) */
+-  offs += gl2psPDFgroupListWriteXObjectResources();
+-  
+-  /* d) Fonts */
+-  offs += gl2psPDFgroupListWriteFontResources();
+-  
+-  /* End resources and page */
+-  offs += fprintf(gl2ps->stream,
+-                  ">>\n"
+-                  ">>\n"
+-                  "endobj\n");
+-  return offs;
+-}
+-
+-/* Standard Graphics State */
+-
+-static int gl2psPrintPDFGSObject(void)
+-{
+-  return fprintf(gl2ps->stream,
+-                 "7 0 obj\n"
+-                 "<<\n"
+-                 "/Type /ExtGState\n"
+-                 "/SA false\n"
+-                 "/SM 0.02\n"
+-                 "/OP false\n"
+-                 "/op false\n"
+-                 "/OPM 0\n"
+-                 "/BG2 /Default\n"
+-                 "/UCR2 /Default\n"
+-                 "/TR2 /Default\n"
+-                 ">>\n"
+-                 "endobj\n");
+-}
+-
+-/* Put vertex' edge flag (8bit) and coordinates (32bit) in shader stream */
+-
+-static int gl2psPrintPDFShaderStreamDataCoord(GL2PSvertex *vertex, 
+-                                              size_t (*action)(unsigned long data, 
+-                                                               size_t size), 
+-                                              GLfloat dx, GLfloat dy, 
+-                                              GLfloat xmin, GLfloat ymin)
+-{
+-  int offs = 0;
+-  unsigned long imap;
+-  GLfloat diff;
+-  double dmax = ~1UL;
+-  char edgeflag = 0;
+-
+-  /* FIXME: temp bux fix for 64 bit archs: */
+-  if(sizeof(unsigned long) == 8) dmax = dmax - 2048.;
+-
+-  offs += (*action)(edgeflag, 1);
+-
+-  /* The Shader stream in PDF requires to be in a 'big-endian'
+-     order */
+-    
+-  if(GL2PS_ZERO(dx * dy)){
+-    offs += (*action)(0, 4);
+-    offs += (*action)(0, 4);
+-  }
+-  else{
+-    diff = (vertex->xyz[0] - xmin) / dx;
+-    if(diff > 1)
+-      diff = 1.0F;
+-    else if(diff < 0)
+-      diff = 0.0F;
+-    imap = (unsigned long)(diff * dmax);
+-    offs += (*action)(imap, 4);
+-      
+-    diff = (vertex->xyz[1] - ymin) / dy;
+-    if(diff > 1)
+-      diff = 1.0F;
+-    else if(diff < 0)
+-      diff = 0.0F;
+-    imap = (unsigned long)(diff * dmax);
+-    offs += (*action)(imap, 4);
+-  }
+-  
+-  return offs;
+-}
+-
+-/* Put vertex' rgb value (8bit for every component) in shader stream */
+-
+-static int gl2psPrintPDFShaderStreamDataRGB(GL2PSvertex *vertex,
+-                                            size_t (*action)(unsigned long data, 
+-                                                             size_t size))
+-{
+-  int offs = 0;
+-  unsigned long imap;
+-  double dmax = ~1UL;
+-
+-  /* FIXME: temp bux fix for 64 bit archs: */
+-  if(sizeof(unsigned long) == 8) dmax = dmax - 2048.;
+-
+-  imap = (unsigned long)((vertex->rgba[0]) * dmax);
+-  offs += (*action)(imap, 1);
+-    
+-  imap = (unsigned long)((vertex->rgba[1]) * dmax);
+-  offs += (*action)(imap, 1);
+-    
+-  imap = (unsigned long)((vertex->rgba[2]) * dmax);
+-  offs += (*action)(imap, 1);
+-  
+-  return offs;
+-}
+-
+-/* Put vertex' alpha (8/16bit) in shader stream */
+-
+-static int gl2psPrintPDFShaderStreamDataAlpha(GL2PSvertex *vertex, 
+-                                              size_t (*action)(unsigned long data, 
+-                                                               size_t size),
+-                                              int sigbyte)
+-{
+-  int offs = 0;
+-  unsigned long imap;
+-  double dmax = ~1UL;
+-
+-  /* FIXME: temp bux fix for 64 bit archs: */
+-  if(sizeof(unsigned long) == 8) dmax = dmax - 2048.;
+-
+-  if(sigbyte != 8 && sigbyte != 16)
+-    sigbyte = 8;
+-        
+-  sigbyte /= 8;
+-  
+-  imap = (unsigned long)((vertex->rgba[3]) * dmax);
+-  
+-  offs += (*action)(imap, sigbyte);
+-  
+-  return offs;
+-}
+-
+-/* Put a triangles raw data in shader stream */
+-
+-static int gl2psPrintPDFShaderStreamData(GL2PStriangle *triangle, 
+-                                         GLfloat dx, GLfloat dy, 
+-                                         GLfloat xmin, GLfloat ymin,
+-                                         size_t (*action)(unsigned long data, 
+-                                                          size_t size),
+-                                         int gray)
+-{
+-  int i, offs = 0;
+-  GL2PSvertex v;
+-  
+-  if(gray && gray != 8 && gray != 16)
+-    gray = 8;
+-  
+-  for(i = 0; i < 3; ++i){
+-    offs += gl2psPrintPDFShaderStreamDataCoord(&triangle->vertex[i], action,
+-                                               dx, dy, xmin, ymin);
+-    if(gray){ 
+-      v = triangle->vertex[i];
+-      offs += gl2psPrintPDFShaderStreamDataAlpha(&v, action, gray); 
+-    }
+-    else{
+-      offs += gl2psPrintPDFShaderStreamDataRGB(&triangle->vertex[i], action);
+-    }
+-  }
+-  
+-  return offs;
+-}
+-
+-static void gl2psPDFRectHull(GLfloat *xmin, GLfloat *xmax, 
+-                             GLfloat *ymin, GLfloat *ymax, 
+-                             GL2PStriangle *triangles, int cnt)
+-{
+-  int i, j;
+-
+-  *xmin = triangles[0].vertex[0].xyz[0];
+-  *xmax = triangles[0].vertex[0].xyz[0];
+-  *ymin = triangles[0].vertex[0].xyz[1];
+-  *ymax = triangles[0].vertex[0].xyz[1];
+-  
+-  for(i = 0; i < cnt; ++i){
+-    for(j = 0; j < 3; ++j){
+-      if(*xmin > triangles[i].vertex[j].xyz[0])
+-        *xmin = triangles[i].vertex[j].xyz[0];
+-      if(*xmax < triangles[i].vertex[j].xyz[0])
+-        *xmax = triangles[i].vertex[j].xyz[0];
+-      if(*ymin > triangles[i].vertex[j].xyz[1])
+-        *ymin = triangles[i].vertex[j].xyz[1];
+-      if(*ymax < triangles[i].vertex[j].xyz[1])
+-        *ymax = triangles[i].vertex[j].xyz[1];
+-    }
+-  }
+-}
+-
+-/* Writes shaded triangle 
+-   gray == 0 means write RGB triangles
+-   gray == 8             8bit-grayscale (for alpha masks)
+-   gray == 16            16bit-grayscale (for alpha masks) */
+-
+-static int gl2psPrintPDFShader(int obj, GL2PStriangle *triangles, 
+-                               int size, int gray)
+-{
+-  int i, offs = 0, vertexbytes, done = 0;
+-  GLfloat xmin, xmax, ymin, ymax;
+-        
+-  switch(gray){
+-  case 0:
+-    vertexbytes = 1+4+4+1+1+1;
+-    break;
+-  case 8:
+-    vertexbytes = 1+4+4+1;
+-    break;
+-  case 16:
+-    vertexbytes = 1+4+4+2;
+-    break;
+-  default:
+-    gray = 8;
+-    vertexbytes = 1+4+4+1;
+-    break;
+-  }
+-  
+-  gl2psPDFRectHull(&xmin, &xmax, &ymin, &ymax, triangles, size);
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "%d 0 obj\n"
+-                  "<< "
+-                  "/ShadingType 4 "
+-                  "/ColorSpace %s "
+-                  "/BitsPerCoordinate 32 "
+-                  "/BitsPerComponent %d "
+-                  "/BitsPerFlag 8 "
+-                  "/Decode [%f %f %f %f 0 1 %s] ",
+-                  obj,
+-                  (gray) ? "/DeviceGray" : "/DeviceRGB", 
+-                  (gray) ? gray : 8,
+-                  xmin, xmax, ymin, ymax,
+-                  (gray) ? "" : "0 1 0 1");
+-  
+-#if defined(GL2PS_HAVE_ZLIB)
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    gl2psAllocCompress(vertexbytes * size * 3);
+-
+-    for(i = 0; i < size; ++i)
+-      gl2psPrintPDFShaderStreamData(&triangles[i],
+-                                    xmax-xmin, ymax-ymin, xmin, ymin, 
+-                                    gl2psWriteBigEndianCompress, gray);
+-
+-    if(Z_OK == gl2psDeflate() && 23 + gl2ps->compress->destLen < gl2ps->compress->srcLen){
+-      offs += gl2psPrintPDFCompressorType();
+-      offs += fprintf(gl2ps->stream,
+-                      "/Length %d "
+-                      ">>\n"
+-                      "stream\n",
+-                      (int)gl2ps->compress->destLen);
+-      offs += gl2ps->compress->destLen * fwrite(gl2ps->compress->dest, 
+-                                                gl2ps->compress->destLen, 
+-                                                1, gl2ps->stream);
+-      done = 1;
+-    }
+-    gl2psFreeCompress();
+-  }
+-#endif
+-
+-  if(!done){
+-    /* no compression, or too long after compression, or compress error
+-       -> write non-compressed entry */
+-    offs += fprintf(gl2ps->stream,
+-                    "/Length %d "
+-                    ">>\n"
+-                    "stream\n",
+-                    vertexbytes * 3 * size);
+-    for(i = 0; i < size; ++i)
+-      offs += gl2psPrintPDFShaderStreamData(&triangles[i],
+-                                            xmax-xmin, ymax-ymin, xmin, ymin,
+-                                            gl2psWriteBigEndian, gray);
+-  }
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "\nendstream\n"
+-                  "endobj\n");
+-  
+-  return offs;
+-}
+-
+-/* Writes a XObject for a shaded triangle mask */
+-
+-static int gl2psPrintPDFShaderMask(int obj, int childobj)
+-{
+-  int offs = 0, len;
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "%d 0 obj\n"
+-                  "<<\n"
+-                  "/Type /XObject\n"
+-                  "/Subtype /Form\n"
+-                  "/BBox [ %d %d %d %d ]\n"
+-                  "/Group \n<<\n/S /Transparency /CS /DeviceRGB\n"
+-                  ">>\n",
+-                  obj,
+-                  (int)gl2ps->viewport[0], (int)gl2ps->viewport[1],
+-                  (int)gl2ps->viewport[2], (int)gl2ps->viewport[3]);
+-  
+-  len = (childobj>0) 
+-    ? strlen("/TrSh sh\n") + (int)log10((double)childobj)+1
+-    : strlen("/TrSh0 sh\n"); 
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "/Length %d\n"
+-                  ">>\n"
+-                  "stream\n",
+-                  len);
+-  offs += fprintf(gl2ps->stream,
+-                  "/TrSh%d sh\n",
+-                  childobj);
+-  offs += fprintf(gl2ps->stream,
+-                  "endstream\n"
+-                  "endobj\n");
+-  
+-  return offs;
+-}
+-
+-/* Writes a Extended graphics state for a shaded triangle mask if
+-   simplealpha ist true the childobj argument is ignored and a /ca
+-   statement will be written instead */
+-
+-static int gl2psPrintPDFShaderExtGS(int obj, int childobj)
+-{
+-  int offs = 0;
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "%d 0 obj\n"
+-                  "<<\n",
+-                  obj);
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "/SMask << /S /Alpha /G %d 0 R >> ",
+-                  childobj);
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  ">>\n"
+-                  "endobj\n");
+-  return offs;
+-}
+-
+-/* a simple graphics state */
+-
+-static int gl2psPrintPDFShaderSimpleExtGS(int obj, GLfloat alpha)
+-{
+-  int offs = 0;
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "%d 0 obj\n"
+-                  "<<\n"
+-                  "/ca %g"
+-                  ">>\n"
+-                  "endobj\n",
+-                  obj, alpha);
+-  return offs;
+-}
+-
+-/* Similar groups of functions for pixmaps and text */
+-
+-static int gl2psPrintPDFPixmapStreamData(GL2PSimage *im,
+-                                         size_t (*action)(unsigned long data, 
+-                                                          size_t size), 
+-                                         int gray)
+-{
+-  int x, y, shift;
+-  GLfloat r, g, b, a;
+-
+-  if(im->format != GL_RGBA && gray)
+-    return 0;
+-
+-  if(gray && gray != 8 && gray != 16)
+-    gray = 8;
+-
+-  gray /= 8;
+-  
+-  shift = (sizeof(unsigned long) - 1) * 8;
+-
+-  for(y = 0; y < im->height; ++y){
+-    for(x = 0; x < im->width; ++x){
+-      a = gl2psGetRGB(im, x, y, &r, &g, &b);
+-      if(im->format == GL_RGBA && gray){
+-        (*action)((unsigned long)(a * 255) << shift, gray);
+-      }
+-      else{
+-        (*action)((unsigned long)(r * 255) << shift, 1);
+-        (*action)((unsigned long)(g * 255) << shift, 1);
+-        (*action)((unsigned long)(b * 255) << shift, 1);
+-      }
+-    }
+-  }
+-
+-  switch(gray){
+-  case 0: return 3 * im->width * im->height;
+-  case 1: return im->width * im->height;
+-  case 2: return 2 * im->width * im->height;
+-  default: return 3 * im->width * im->height;
+-  }
+-}
+-
+-static int gl2psPrintPDFPixmap(int obj, int childobj, GL2PSimage *im, int gray)
+-{
+-  int offs = 0, done = 0, sigbytes = 3;
+-
+-  if(gray && gray !=8 && gray != 16)
+-    gray = 8;
+-  
+-  if(gray)
+-    sigbytes = gray / 8; 
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "%d 0 obj\n"
+-                  "<<\n"
+-                  "/Type /XObject\n"
+-                  "/Subtype /Image\n"
+-                  "/Width %d\n"
+-                  "/Height %d\n"
+-                  "/ColorSpace %s \n"
+-                  "/BitsPerComponent 8\n",
+-                  obj,
+-                  (int)im->width, (int)im->height,
+-                  (gray) ? "/DeviceGray" : "/DeviceRGB" );
+-  if(GL_RGBA == im->format && gray == 0){
+-    offs += fprintf(gl2ps->stream,
+-                    "/SMask %d 0 R\n",
+-                    childobj);
+-  }
+-  
+-#if defined(GL2PS_HAVE_ZLIB)
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    gl2psAllocCompress((int)(im->width * im->height * sigbytes));
+-    
+-    gl2psPrintPDFPixmapStreamData(im, gl2psWriteBigEndianCompress, gray);
+-    
+-    if(Z_OK == gl2psDeflate() && 23 + gl2ps->compress->destLen < gl2ps->compress->srcLen){
+-      offs += gl2psPrintPDFCompressorType();
+-      offs += fprintf(gl2ps->stream,
+-                      "/Length %d "
+-                      ">>\n"
+-                      "stream\n",
+-                      (int)gl2ps->compress->destLen);
+-      offs += gl2ps->compress->destLen * fwrite(gl2ps->compress->dest, gl2ps->compress->destLen,
+-                                                1, gl2ps->stream);
+-      done = 1;
+-    }
+-    gl2psFreeCompress();
+-  }
+-#endif
+-  
+-  if(!done){
+-    /* no compression, or too long after compression, or compress error
+-       -> write non-compressed entry */
+-    offs += fprintf(gl2ps->stream,
+-                    "/Length %d "
+-                    ">>\n"
+-                    "stream\n",
+-                    (int)(im->width * im->height * sigbytes));
+-    offs += gl2psPrintPDFPixmapStreamData(im, gl2psWriteBigEndian, gray);
+-  }
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "\nendstream\n"
+-                  "endobj\n");
+-  
+-  return offs;
+-}
+-
+-static int gl2psPrintPDFText(int obj, GL2PSstring *s, int fontnumber)
+-{
+-  int offs = 0;
+-  
+-  offs += fprintf(gl2ps->stream,
+-                  "%d 0 obj\n"
+-                  "<<\n"
+-                  "/Type /Font\n"
+-                  "/Subtype /Type1\n"
+-                  "/Name /F%d\n"
+-                  "/BaseFont /%s\n"
+-                  "/Encoding /MacRomanEncoding\n"
+-                  ">>\n"
+-                  "endobj\n",
+-                  obj, fontnumber, s->fontname);
+-  return offs;
+-}
+-
+-/* Write the physical objects */
+-
+-static int gl2psPDFgroupListWriteObjects(int entryoffs)
+-{
+-  int i,j;
+-  GL2PSprimitive *p = NULL;
+-  GL2PSpdfgroup *gro;
+-  int offs = entryoffs;
+-  GL2PStriangle *triangles;
+-  int size = 0;
+-
+-  if(!gl2ps->pdfgrouplist)
+-    return offs;
+-  
+-  for(i = 0; i < gl2psListNbr(gl2ps->pdfgrouplist); ++i){  
+-    gro = (GL2PSpdfgroup*)gl2psListPointer(gl2ps->pdfgrouplist, i); 
+-    if(!gl2psListNbr(gro->ptrlist))
+-      continue;
+-    p = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, 0);
+-    switch(p->type){
+-    case GL2PS_POINT:
+-      break;
+-    case GL2PS_LINE:
+-      break;
+-    case GL2PS_TRIANGLE:
+-      size = gl2psListNbr(gro->ptrlist);
+-      triangles = (GL2PStriangle*)gl2psMalloc(sizeof(GL2PStriangle) * size);
+-      for(j = 0; j < size; ++j){  
+-        p = *(GL2PSprimitive**)gl2psListPointer(gro->ptrlist, j);
+-        gl2psFillTriangleFromPrimitive(&triangles[j], p, GL_TRUE);
+-      }
+-      if(triangles[0].prop & T_VAR_COLOR){
+-        gl2ps->xreflist[gro->shobjno] = offs;
+-        offs += gl2psPrintPDFShader(gro->shobjno, triangles, size, 0);
+-      }
+-      if(triangles[0].prop & T_ALPHA_LESS_1){
+-        gl2ps->xreflist[gro->gsobjno] = offs;
+-        offs += gl2psPrintPDFShaderSimpleExtGS(gro->gsobjno, triangles[0].vertex[0].rgba[3]);
+-      }
+-      if(triangles[0].prop & T_VAR_ALPHA){
+-        gl2ps->xreflist[gro->gsobjno] = offs;
+-        offs += gl2psPrintPDFShaderExtGS(gro->gsobjno, gro->trgroupobjno);
+-        gl2ps->xreflist[gro->trgroupobjno] = offs;
+-        offs += gl2psPrintPDFShaderMask(gro->trgroupobjno, gro->maskshno);
+-        gl2ps->xreflist[gro->maskshobjno] = offs;
+-        offs += gl2psPrintPDFShader(gro->maskshobjno, triangles, size, 8);
+-      }
+-      gl2psFree(triangles);
+-      break;
+-    case GL2PS_PIXMAP:
+-      gl2ps->xreflist[gro->imobjno] = offs;
+-      offs += gl2psPrintPDFPixmap(gro->imobjno, gro->imobjno+1, p->data.image, 0);
+-      if(p->data.image->format == GL_RGBA){
+-        gl2ps->xreflist[gro->imobjno+1] = offs;
+-        offs += gl2psPrintPDFPixmap(gro->imobjno+1, -1, p->data.image, 8);
+-      }
+-      break;
+-    case GL2PS_TEXT:
+-      gl2ps->xreflist[gro->fontobjno] = offs;
+-      offs += gl2psPrintPDFText(gro->fontobjno,p->data.text,gro->fontno);
+-      break;
+-    case GL2PS_SPECIAL :
+-      /* alignment contains the format for which the special output text
+-         is intended */
+-      if(p->data.text->alignment == GL2PS_PDF)
+-        offs += fprintf(gl2ps->stream, "%s\n", p->data.text->str);
+-      break;
+-    default:
+-      break;
+-    } 
+-  }
+-  return offs;
+-}
+-
+-/* All variable data has been written at this point and all required
+-   functioninality has been gathered, so we can write now file footer
+-   with cross reference table and trailer */
+-
+-static void gl2psPrintPDFFooter(void)
+-{
+-  int i, offs;  
+-
+-  gl2psPDFgroupListInit();
+-  gl2psPDFgroupListWriteMainStream();
+- 
+-  offs = gl2ps->xreflist[5] + gl2ps->streamlength; 
+-  offs += gl2psClosePDFDataStream();
+-  gl2ps->xreflist[5] = offs;
+-  
+-  offs += gl2psPrintPDFDataStreamLength(gl2ps->streamlength);
+-  gl2ps->xreflist[6] = offs;
+-  gl2ps->streamlength = 0;
+-  
+-  offs += gl2psPrintPDFOpenPage();
+-  offs += gl2psPDFgroupListWriteVariableResources();
+-  gl2ps->xreflist = (int*)gl2psRealloc(gl2ps->xreflist,
+-                                       sizeof(int) * (gl2ps->objects_stack + 1));
+-  gl2ps->xreflist[7] = offs;
+-  
+-  offs += gl2psPrintPDFGSObject();
+-  gl2ps->xreflist[8] = offs;
+-  
+-  gl2ps->xreflist[gl2ps->objects_stack] = 
+-    gl2psPDFgroupListWriteObjects(gl2ps->xreflist[8]);
+-
+-  /* Start cross reference table. The file has to been opened in
+-     binary mode to preserve the 20 digit string length! */
+-  fprintf(gl2ps->stream,
+-          "xref\n"
+-          "0 %d\n"
+-          "%010d 65535 f \n", gl2ps->objects_stack, 0);
+-  
+-  for(i = 1; i < gl2ps->objects_stack; ++i)
+-    fprintf(gl2ps->stream, "%010d 00000 n \n", gl2ps->xreflist[i]);
+-  
+-  fprintf(gl2ps->stream,
+-          "trailer\n"
+-          "<<\n" 
+-          "/Size %d\n"
+-          "/Info 1 0 R\n"
+-          "/Root 2 0 R\n"
+-          ">>\n"
+-          "startxref\n%d\n"
+-          "%%%%EOF\n",
+-          gl2ps->objects_stack, gl2ps->xreflist[gl2ps->objects_stack]);
+-  
+-  /* Free auxiliary lists and arrays */    
+-  gl2psFree(gl2ps->xreflist);
+-  gl2psListAction(gl2ps->pdfprimlist, gl2psFreePrimitive);
+-  gl2psListDelete(gl2ps->pdfprimlist);
+-  gl2psPDFgroupListDelete();
+-  
+-#if defined(GL2PS_HAVE_ZLIB)
+-  if(gl2ps->options & GL2PS_COMPRESS){
+-    gl2psFreeCompress();
+-    gl2psFree(gl2ps->compress);
+-    gl2ps->compress = NULL;
+-  }
+-#endif
+-}
+-
+-/* PDF begin viewport */
+-
+-static void gl2psPrintPDFBeginViewport(GLint viewport[4])
+-{
+-  int offs = 0;
+-  GLint index;
+-  GLfloat rgba[4];
+-  int x = viewport[0], y = viewport[1], w = viewport[2], h = viewport[3];
+-  
+-  glRenderMode(GL_FEEDBACK);
+-  
+-  if(gl2ps->header){
+-    gl2psPrintPDFHeader();
+-    gl2ps->header = GL_FALSE;
+-  }
+-
+-  offs += gl2psPrintf("q\n");
+-  
+-  if(gl2ps->options & GL2PS_DRAW_BACKGROUND){
+-    if(gl2ps->colormode == GL_RGBA || gl2ps->colorsize == 0){
+-      glGetFloatv(GL_COLOR_CLEAR_VALUE, rgba);
+-    }
+-    else{
+-      glGetIntegerv(GL_INDEX_CLEAR_VALUE, &index);
+-      rgba[0] = gl2ps->colormap[index][0];
+-      rgba[1] = gl2ps->colormap[index][1];
+-      rgba[2] = gl2ps->colormap[index][2];
+-      rgba[3] = 1.0F;
+-    }
+-    offs += gl2psPrintPDFFillColor(rgba);
+-    offs += gl2psPrintf("%d %d %d %d re\n"
+-                        "W\n"
+-                        "f\n",
+-                        x, y, w, h);
+-  }
+-  else{
+-    offs += gl2psPrintf("%d %d %d %d re\n"
+-                        "W\n"   
+-                        "n\n",
+-                        x, y, w, h);            
+-  }
+-  
+-  gl2ps->streamlength += offs;
+-}
+-
+-static GLint gl2psPrintPDFEndViewport(void)
+-{
+-  GLint res;
+-  
+-  res = gl2psPrintPrimitives();
+-  gl2ps->streamlength += gl2psPrintf("Q\n");
+-  return res;
+-}
+-
+-static void gl2psPrintPDFFinalPrimitive(void)
+-{
+-}
+-
+-/* definition of the PDF backend */
+-
+-static GL2PSbackend gl2psPDF = {
+-  gl2psPrintPDFHeader,
+-  gl2psPrintPDFFooter,
+-  gl2psPrintPDFBeginViewport,
+-  gl2psPrintPDFEndViewport,
+-  gl2psPrintPDFPrimitive,
+-  gl2psPrintPDFFinalPrimitive,
+-  "pdf",
+-  "Portable Document Format"
+-};
+-
+-/********************************************************************* 
+- *
+- * SVG routines
+- *
+- *********************************************************************/
+-
+-static void gl2psSVGGetCoordsAndColors(int n, GL2PSvertex *verts, 
+-                                       GL2PSxyz *xyz, GL2PSrgba *rgba)
+-{
+-  int i, j;
+-
+-  for(i = 0; i < n; i++){
+-    xyz[i][0] = verts[i].xyz[0];
+-    xyz[i][1] = gl2ps->viewport[3] - verts[i].xyz[1];
+-    xyz[i][2] = 0.0F;
+-    for(j = 0; j < 4; j++)
+-      rgba[i][j] = verts[i].rgba[j];
+-  }
+-}
+-
+-static void gl2psSVGGetColorString(GL2PSrgba rgba, char str[32])
+-{
+-  int r = (int)(255. * rgba[0]);
+-  int g = (int)(255. * rgba[1]);
+-  int b = (int)(255. * rgba[2]);
+-  int rc = (r < 0) ? 0 : (r > 255) ? 255 : r;
+-  int gc = (g < 0) ? 0 : (g > 255) ? 255 : g;
+-  int bc = (b < 0) ? 0 : (b > 255) ? 255 : b;
+-  sprintf(str, "#%2.2x%2.2x%2.2x", rc, gc, bc);
+-}
+-
+-static void gl2psPrintSVGHeader(void)
+-{
+-  int x, y, width, height;
+-  char col[32];
+-  time_t now;
+-  
+-  time(&now);
+-  
+-  if (gl2ps->options & GL2PS_LANDSCAPE){
+-    x = (int)gl2ps->viewport[1];
+-    y = (int)gl2ps->viewport[0];
+-    width = (int)gl2ps->viewport[3];
+-    height = (int)gl2ps->viewport[2];
+-  }
+-  else{
+-    x = (int)gl2ps->viewport[0];
+-    y = (int)gl2ps->viewport[1];
+-    width = (int)gl2ps->viewport[2];
+-    height = (int)gl2ps->viewport[3];
+-  }
+-  
+-  /* Compressed SVG files (.svgz) are simply gzipped SVG files */
+-  gl2psPrintGzipHeader();
+-  
+-  gl2psPrintf("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
+-  gl2psPrintf("<svg xmlns=\"http://www.w3.org/2000/svg\"\n");
+-  gl2psPrintf("     xmlns:xlink=\"http://www.w3.org/1999/xlink\"\n"
+-              "     width=\"%dpx\" height=\"%dpx\" viewBox=\"%d %d %d %d\">\n",
+-              width, height, x, y, width, height);
+-  gl2psPrintf("<title>%s</title>\n", gl2ps->title);
+-  gl2psPrintf("<desc>\n");
+-  gl2psPrintf("Creator: GL2PS %d.%d.%d%s, %s\n"
+-              "For: %s\n"
+-              "CreationDate: %s",
+-              GL2PS_MAJOR_VERSION, GL2PS_MINOR_VERSION, GL2PS_PATCH_VERSION,
+-              GL2PS_EXTRA_VERSION, GL2PS_COPYRIGHT, gl2ps->producer, ctime(&now));
+-  gl2psPrintf("</desc>\n");
+-  gl2psPrintf("<defs>\n");
+-  gl2psPrintf("</defs>\n");
+-
+-  if(gl2ps->options & GL2PS_DRAW_BACKGROUND){
+-    gl2psSVGGetColorString(gl2ps->bgcolor, col);
+-    gl2psPrintf("<polygon fill=\"%s\" points=\"%d,%d %d,%d %d,%d %d,%d\"/>\n", col,
+-                (int)gl2ps->viewport[0], (int)gl2ps->viewport[1], 
+-                (int)gl2ps->viewport[2], (int)gl2ps->viewport[1], 
+-                (int)gl2ps->viewport[2], (int)gl2ps->viewport[3], 
+-                (int)gl2ps->viewport[0], (int)gl2ps->viewport[3]);
+-  }
+-
+-  /* group all the primitives and disable antialiasing */
+-  gl2psPrintf("<g shape-rendering=\"crispEdges\">\n");
+-}
+-
+-static void gl2psPrintSVGSmoothTriangle(GL2PSxyz xyz[3], GL2PSrgba rgba[3])
+-{
+-  int i;
+-  GL2PSxyz xyz2[3];
+-  GL2PSrgba rgba2[3];
+-  char col[32];
+-
+-  /* Apparently there is no easy way to do Gouraud shading in SVG
+-     without explicitly pre-defining gradients, so for now we just do
+-     recursive subdivision */
+-
+-  if(gl2psSameColorThreshold(3, rgba, gl2ps->threshold)){
+-    gl2psSVGGetColorString(rgba[0], col);
+-    gl2psPrintf("<polygon fill=\"%s\" ", col);
+-    if(rgba[0][3] < 1.0F) gl2psPrintf("fill-opacity=\"%g\" ", rgba[0][3]);
+-    gl2psPrintf("points=\"%g,%g %g,%g %g,%g\"/>\n", xyz[0][0], xyz[0][1], 
+-                xyz[1][0], xyz[1][1], xyz[2][0], xyz[2][1]);
+-  }
+-  else{
+-    /* subdivide into 4 subtriangles */
+-    for(i = 0; i < 3; i++){
+-      xyz2[0][i] = xyz[0][i]; 
+-      xyz2[1][i] = 0.5F * (xyz[0][i] + xyz[1][i]);
+-      xyz2[2][i] = 0.5F * (xyz[0][i] + xyz[2][i]);
+-    }
+-    for(i = 0; i < 4; i++){
+-      rgba2[0][i] = rgba[0][i]; 
+-      rgba2[1][i] = 0.5F * (rgba[0][i] + rgba[1][i]);
+-      rgba2[2][i] = 0.5F * (rgba[0][i] + rgba[2][i]);
+-    }
+-    gl2psPrintSVGSmoothTriangle(xyz2, rgba2);
+-    for(i = 0; i < 3; i++){
+-      xyz2[0][i] = 0.5F * (xyz[0][i] + xyz[1][i]);
+-      xyz2[1][i] = xyz[1][i]; 
+-      xyz2[2][i] = 0.5F * (xyz[1][i] + xyz[2][i]);
+-    }
+-    for(i = 0; i < 4; i++){
+-      rgba2[0][i] = 0.5F * (rgba[0][i] + rgba[1][i]);
+-      rgba2[1][i] = rgba[1][i]; 
+-      rgba2[2][i] = 0.5F * (rgba[1][i] + rgba[2][i]);
+-    }
+-    gl2psPrintSVGSmoothTriangle(xyz2, rgba2);
+-    for(i = 0; i < 3; i++){
+-      xyz2[0][i] = 0.5F * (xyz[0][i] + xyz[2][i]);
+-      xyz2[1][i] = xyz[2][i]; 
+-      xyz2[2][i] = 0.5F * (xyz[1][i] + xyz[2][i]);
+-    }
+-    for(i = 0; i < 4; i++){
+-      rgba2[0][i] = 0.5F * (rgba[0][i] + rgba[2][i]);
+-      rgba2[1][i] = rgba[2][i]; 
+-      rgba2[2][i] = 0.5F * (rgba[1][i] + rgba[2][i]);
+-    }
+-    gl2psPrintSVGSmoothTriangle(xyz2, rgba2);
+-    for(i = 0; i < 3; i++){
+-      xyz2[0][i] = 0.5F * (xyz[0][i] + xyz[1][i]);
+-      xyz2[1][i] = 0.5F * (xyz[1][i] + xyz[2][i]); 
+-      xyz2[2][i] = 0.5F * (xyz[0][i] + xyz[2][i]);
+-    }
+-    for(i = 0; i < 4; i++){
+-      rgba2[0][i] = 0.5F * (rgba[0][i] + rgba[1][i]);
+-      rgba2[1][i] = 0.5F * (rgba[1][i] + rgba[2][i]); 
+-      rgba2[2][i] = 0.5F * (rgba[0][i] + rgba[2][i]);
+-    }
+-    gl2psPrintSVGSmoothTriangle(xyz2, rgba2);
+-  }
+-}
+-
+-static void gl2psPrintSVGDash(GLushort pattern, GLint factor)
+-{
+-  int i, n, array[10];
+-
+-  if(!pattern || !factor) return; /* solid line */
+-
+-  gl2psParseStipplePattern(pattern, factor, &n, array);
+-  gl2psPrintf("stroke-dasharray=\"");
+-  for(i = 0; i < n; i++){
+-    if(i) gl2psPrintf(",");
+-    gl2psPrintf("%d", array[i]);
+-  }
+-  gl2psPrintf("\" ");
+-}
+-
+-static void gl2psEndSVGLine(void)
+-{
+-  int i;
+-  if(gl2ps->lastvertex.rgba[0] >= 0.){
+-    gl2psPrintf("%g,%g\"/>\n", gl2ps->lastvertex.xyz[0], 
+-                gl2ps->viewport[3] - gl2ps->lastvertex.xyz[1]);
+-    for(i = 0; i < 3; i++)
+-      gl2ps->lastvertex.xyz[i] = -1.;
+-    for(i = 0; i < 4; i++)
+-      gl2ps->lastvertex.rgba[i] = -1.;
+-  }
+-}
+-
+-static void gl2psPrintSVGPixmap(GLfloat x, GLfloat y, GL2PSimage *pixmap)
+-{
+-#if defined(GL2PS_HAVE_LIBPNG)
+-  GL2PSlist *png;
+-  unsigned char c;
+-  int i;
+-
+-  /* The only image types supported by the SVG standard are JPEG, PNG
+-     and SVG. Here we choose PNG, and since we want to embed the image
+-     directly in the SVG stream (and not link to an external image
+-     file), we need to encode the pixmap into PNG in memory, then
+-     encode it into base64. */
+-
+-  png = gl2psListCreate(pixmap->width * pixmap->height * 3, 1000, 
+-                        sizeof(unsigned char));
+-  gl2psConvertPixmapToPNG(pixmap, png);
+-  gl2psListEncodeBase64(png);
+-  gl2psPrintf("<image x=\"%g\" y=\"%g\" width=\"%d\" height=\"%d\"\n",
+-              x, y - pixmap->height, pixmap->width, pixmap->height);
+-  gl2psPrintf("xlink:href=\"data:image/png;base64,");
+-  for(i = 0; i < gl2psListNbr(png); i++){
+-    gl2psListRead(png, i, &c);
+-    gl2psPrintf("%c", c);
+-  }
+-  gl2psPrintf("\"/>\n");
+-  gl2psListDelete(png);
+-#else
+-  gl2psMsg(GL2PS_WARNING, "GL2PS must be compiled with PNG support in "
+-           "order to embed images in SVG streams");
+-#endif
+-}
+-
+-static void gl2psPrintSVGPrimitive(void *data)
+-{
+-  GL2PSprimitive *prim;
+-  GL2PSxyz xyz[4];
+-  GL2PSrgba rgba[4];
+-  char col[32];
+-  int newline;
+-
+-  prim = *(GL2PSprimitive**)data;
+-
+-  if((gl2ps->options & GL2PS_OCCLUSION_CULL) && prim->culled) return;
+-
+-  /* We try to draw connected lines as a single path to get nice line
+-     joins and correct stippling. So if the primitive to print is not
+-     a line we must first finish the current line (if any): */
+-  if(prim->type != GL2PS_LINE) gl2psEndSVGLine();
+-
+-  gl2psSVGGetCoordsAndColors(prim->numverts, prim->verts, xyz, rgba);
+-
+-  switch(prim->type){
+-  case GL2PS_POINT :
+-    gl2psSVGGetColorString(rgba[0], col);
+-    gl2psPrintf("<circle fill=\"%s\" ", col);
+-    if(rgba[0][3] < 1.0F) gl2psPrintf("fill-opacity=\"%g\" ", rgba[0][3]);
+-    gl2psPrintf("cx=\"%g\" cy=\"%g\" r=\"%g\"/>\n",
+-                xyz[0][0], xyz[0][1], 0.5 * prim->width);
+-    break;
+-  case GL2PS_LINE :
+-    if(!gl2psSamePosition(gl2ps->lastvertex.xyz, prim->verts[0].xyz) ||
+-       !gl2psSameColor(gl2ps->lastrgba, prim->verts[0].rgba) ||
+-       gl2ps->lastlinewidth != prim->width ||
+-       gl2ps->lastpattern != prim->pattern ||
+-       gl2ps->lastfactor != prim->factor){
+-      /* End the current line if the new segment does not start where
+-         the last one ended, or if the color, the width or the
+-         stippling have changed (we will need to use multi-point
+-         gradients for smooth-shaded lines) */
+-      gl2psEndSVGLine();
+-      newline = 1;
+-    }
+-    else{
+-      newline = 0;
+-    }
+-    gl2ps->lastvertex = prim->verts[1];
+-    gl2psSetLastColor(prim->verts[0].rgba);
+-    gl2ps->lastlinewidth = prim->width;
+-    gl2ps->lastpattern = prim->pattern;
+-    gl2ps->lastfactor = prim->factor;
+-    if(newline){
+-      gl2psSVGGetColorString(rgba[0], col);
+-      gl2psPrintf("<polyline fill=\"none\" stroke=\"%s\" stroke-width=\"%g\" ", 
+-                  col, prim->width);
+-      if(rgba[0][3] < 1.0F) gl2psPrintf("stroke-opacity=\"%g\" ", rgba[0][3]);
+-      gl2psPrintSVGDash(prim->pattern, prim->factor);
+-      gl2psPrintf("points=\"%g,%g ", xyz[0][0], xyz[0][1]);
+-    }
+-    else{
+-      gl2psPrintf("%g,%g ", xyz[0][0], xyz[0][1]);
+-    }
+-    break;
+-  case GL2PS_TRIANGLE :
+-    gl2psPrintSVGSmoothTriangle(xyz, rgba);
+-    break;
+-  case GL2PS_QUADRANGLE :
+-    gl2psMsg(GL2PS_WARNING, "There should not be any quad left to print");
+-    break;
+-  case GL2PS_PIXMAP :
+-    gl2psPrintSVGPixmap(xyz[0][0], xyz[0][1], prim->data.image);
+-    break;
+-  case GL2PS_TEXT :
+-    gl2psSVGGetColorString(prim->verts[0].rgba, col);
+-    gl2psPrintf("<text fill=\"%s\" x=\"%g\" y=\"%g\" font-size=\"%d\" ",
+-                col, xyz[0][0], xyz[0][1], prim->data.text->fontsize);
+-    if(prim->data.text->angle)
+-      gl2psPrintf("transform=\"rotate(%g, %g, %g)\" ",
+-                  -prim->data.text->angle, xyz[0][0], xyz[0][1]);
+-    if(!strcmp(prim->data.text->fontname, "Times-Roman"))
+-      gl2psPrintf("font-family=\"Times\">");
+-    else if(!strcmp(prim->data.text->fontname, "Times-Bold"))
+-      gl2psPrintf("font-family=\"Times\" font-weight=\"bold\">");
+-    else if(!strcmp(prim->data.text->fontname, "Times-Italic"))
+-      gl2psPrintf("font-family=\"Times\" font-style=\"italic\">");
+-    else if(!strcmp(prim->data.text->fontname, "Times-BoldItalic"))
+-      gl2psPrintf("font-family=\"Times\" font-style=\"italic\" font-weight=\"bold\">");
+-    else if(!strcmp(prim->data.text->fontname, "Helvetica-Bold"))
+-      gl2psPrintf("font-family=\"Helvetica\" font-weight=\"bold\">");
+-    else if(!strcmp(prim->data.text->fontname, "Helvetica-Oblique"))
+-      gl2psPrintf("font-family=\"Helvetica\" font-style=\"oblique\">");
+-    else if(!strcmp(prim->data.text->fontname, "Helvetica-BoldOblique"))
+-      gl2psPrintf("font-family=\"Helvetica\" font-style=\"oblique\" font-weight=\"bold\">");
+-    else if(!strcmp(prim->data.text->fontname, "Courier-Bold"))
+-      gl2psPrintf("font-family=\"Courier\" font-weight=\"bold\">");
+-    else if(!strcmp(prim->data.text->fontname, "Courier-Oblique"))
+-      gl2psPrintf("font-family=\"Courier\" font-style=\"oblique\">");
+-    else if(!strcmp(prim->data.text->fontname, "Courier-BoldOblique"))
+-      gl2psPrintf("font-family=\"Courier\" font-style=\"oblique\" font-weight=\"bold\">");
+-    else
+-      gl2psPrintf("font-family=\"%s\">", prim->data.text->fontname);
+-    gl2psPrintf("%s</text>\n", prim->data.text->str);
+-    break;
+-  case GL2PS_SPECIAL :
+-    /* alignment contains the format for which the special output text
+-       is intended */
+-    if(prim->data.text->alignment == GL2PS_SVG)
+-      gl2psPrintf("%s\n", prim->data.text->str);
+-    break;
+-  default :
+-    break;
+-  }
+-}
+-
+-static void gl2psPrintSVGFooter(void)
+-{
+-  gl2psPrintf("</g>\n");
+-  gl2psPrintf("</svg>\n");  
+-  
+-  gl2psPrintGzipFooter();
+-}
+-
+-static void gl2psPrintSVGBeginViewport(GLint viewport[4])
+-{
+-  GLint index;
+-  char col[32];
+-  GLfloat rgba[4];
+-  int x = viewport[0], y = viewport[1], w = viewport[2], h = viewport[3];
+-
+-  glRenderMode(GL_FEEDBACK);
+-  
+-  if(gl2ps->header){
+-    gl2psPrintSVGHeader();
+-    gl2ps->header = GL_FALSE;
+-  }
+-
+-  if(gl2ps->options & GL2PS_DRAW_BACKGROUND){
+-    if(gl2ps->colormode == GL_RGBA || gl2ps->colorsize == 0){
+-      glGetFloatv(GL_COLOR_CLEAR_VALUE, rgba);
+-    }
+-    else{
+-      glGetIntegerv(GL_INDEX_CLEAR_VALUE, &index);
+-      rgba[0] = gl2ps->colormap[index][0];
+-      rgba[1] = gl2ps->colormap[index][1];
+-      rgba[2] = gl2ps->colormap[index][2];
+-      rgba[3] = 1.0F;
+-    }
+-    gl2psSVGGetColorString(rgba, col);
+-    gl2psPrintf("<polygon fill=\"%s\" points=\"%d,%d %d,%d %d,%d %d,%d\"/>\n", col, 
+-                x, gl2ps->viewport[3] - y, 
+-                x + w, gl2ps->viewport[3] - y, 
+-                x + w, gl2ps->viewport[3] - (y + h), 
+-                x, gl2ps->viewport[3] - (y + h));
+-  }
+-
+-  gl2psPrintf("<clipPath id=\"cp%d%d%d%d\">\n", x, y, w, h);
+-  gl2psPrintf("  <polygon points=\"%d,%d %d,%d %d,%d %d,%d\"/>\n", 
+-              x, gl2ps->viewport[3] - y, 
+-              x + w, gl2ps->viewport[3] - y, 
+-              x + w, gl2ps->viewport[3] - (y + h), 
+-              x, gl2ps->viewport[3] - (y + h));
+-  gl2psPrintf("</clipPath>\n");
+-  gl2psPrintf("<g clip-path=\"url(#cp%d%d%d%d)\">\n", x, y, w, h);
+-}
+-
+-static GLint gl2psPrintSVGEndViewport(void)
+-{
+-  GLint res;
+-
+-  res = gl2psPrintPrimitives();
+-  gl2psPrintf("</g>\n");
+-  return res;
+-}
+-
+-static void gl2psPrintSVGFinalPrimitive(void)
+-{
+-  /* End any remaining line, if any */
+-  gl2psEndSVGLine();
+-}
+-
+-/* definition of the SVG backend */
+-
+-static GL2PSbackend gl2psSVG = {
+-  gl2psPrintSVGHeader,
+-  gl2psPrintSVGFooter,
+-  gl2psPrintSVGBeginViewport,
+-  gl2psPrintSVGEndViewport,
+-  gl2psPrintSVGPrimitive,
+-  gl2psPrintSVGFinalPrimitive,
+-  "svg",
+-  "Scalable Vector Graphics"
+-};
+-
+-/*********************************************************************
+- *
+- * PGF routines
+- *
+- *********************************************************************/
+-
+-static void gl2psPrintPGFColor(GL2PSrgba rgba)
+-{
+-  if(!gl2psSameColor(gl2ps->lastrgba, rgba)){
+-    gl2psSetLastColor(rgba);
+-    fprintf(gl2ps->stream, "\\color[rgb]{%f,%f,%f}\n", rgba[0], rgba[1], rgba[2]);
+-  }
+-}
+-
+-static void gl2psPrintPGFHeader(void)
+-{
+-  time_t now;
+-
+-  time(&now);
+-
+-  fprintf(gl2ps->stream, 
+-          "%% Title: %s\n"
+-          "%% Creator: GL2PS %d.%d.%d%s, %s\n"
+-          "%% For: %s\n"
+-          "%% CreationDate: %s",
+-          gl2ps->title, GL2PS_MAJOR_VERSION, GL2PS_MINOR_VERSION,
+-          GL2PS_PATCH_VERSION, GL2PS_EXTRA_VERSION, GL2PS_COPYRIGHT,
+-          gl2ps->producer, ctime(&now));
+-
+-  fprintf(gl2ps->stream, "\\begin{pgfpicture}\n");
+-  if(gl2ps->options & GL2PS_DRAW_BACKGROUND){
+-    gl2psPrintPGFColor(gl2ps->bgcolor);
+-    fprintf(gl2ps->stream,
+-            "\\pgfpathrectanglecorners{"
+-            "\\pgfpoint{%dpt}{%dpt}}{\\pgfpoint{%dpt}{%dpt}}\n"
+-            "\\pgfusepath{fill}\n",
+-            (int)gl2ps->viewport[0], (int)gl2ps->viewport[1],
+-            (int)gl2ps->viewport[2], (int)gl2ps->viewport[3]);
+-  }
+-}
+-
+-static void gl2psPrintPGFDash(GLushort pattern, GLint factor)
+-{
+-  int i, n, array[10];
+-
+-  if(pattern == gl2ps->lastpattern && factor == gl2ps->lastfactor)
+-    return;
+-
+-  gl2ps->lastpattern = pattern;
+-  gl2ps->lastfactor = factor;
+-
+-  if(!pattern || !factor){
+-    /* solid line */
+-    fprintf(gl2ps->stream, "\\pgfsetdash{}{0pt}\n");
+-  }
+-  else{
+-    gl2psParseStipplePattern(pattern, factor, &n, array);
+-    fprintf(gl2ps->stream, "\\pgfsetdash{");
+-    for(i = 0; i < n; i++) fprintf(gl2ps->stream, "{%dpt}", array[i]);
+-    fprintf(gl2ps->stream, "}{0pt}\n");
+-  }
+-}
+-
+-static const char *gl2psPGFTextAlignment(int align)
+-{
+-  switch(align){
+-  case GL2PS_TEXT_C  : return "center";
+-  case GL2PS_TEXT_CL : return "west";
+-  case GL2PS_TEXT_CR : return "east";
+-  case GL2PS_TEXT_B  : return "south";
+-  case GL2PS_TEXT_BR : return "south east";
+-  case GL2PS_TEXT_T  : return "north";
+-  case GL2PS_TEXT_TL : return "north west";
+-  case GL2PS_TEXT_TR : return "north east";
+-  case GL2PS_TEXT_BL : 
+-  default            : return "south west";
+-  }
+-}
+-
+-static void gl2psPrintPGFPrimitive(void *data)
+-{
+-  GL2PSprimitive *prim;
+-
+-  prim = *(GL2PSprimitive**)data;
+-
+-  switch(prim->type){
+-  case GL2PS_POINT :
+-    /* Points in openGL are rectangular */
+-    gl2psPrintPGFColor(prim->verts[0].rgba);
+-    fprintf(gl2ps->stream, 
+-            "\\pgfpathrectangle{\\pgfpoint{%fpt}{%fpt}}"
+-            "{\\pgfpoint{%fpt}{%fpt}}\n\\pgfusepath{fill}\n",
+-            prim->verts[0].xyz[0]-0.5*prim->width,
+-            prim->verts[0].xyz[1]-0.5*prim->width,
+-            prim->width,prim->width);
+-    break;
+-  case GL2PS_LINE :
+-    gl2psPrintPGFColor(prim->verts[0].rgba);
+-    if(gl2ps->lastlinewidth != prim->width){
+-      gl2ps->lastlinewidth = prim->width;
+-      fprintf(gl2ps->stream, "\\pgfsetlinewidth{%fpt}\n", gl2ps->lastlinewidth);
+-    }
+-    gl2psPrintPGFDash(prim->pattern, prim->factor);
+-    fprintf(gl2ps->stream, 
+-            "\\pgfpathmoveto{\\pgfpoint{%fpt}{%fpt}}\n"
+-            "\\pgflineto{\\pgfpoint{%fpt}{%fpt}}\n"
+-            "\\pgfusepath{stroke}\n",
+-            prim->verts[1].xyz[0], prim->verts[1].xyz[1],
+-            prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-    break;
+-  case GL2PS_TRIANGLE :
+-    if(gl2ps->lastlinewidth != 0){
+-      gl2ps->lastlinewidth = 0;
+-      fprintf(gl2ps->stream, "\\pgfsetlinewidth{0.01pt}\n");
+-    }
+-    gl2psPrintPGFColor(prim->verts[0].rgba);
+-    fprintf(gl2ps->stream, 
+-            "\\pgfpathmoveto{\\pgfpoint{%fpt}{%fpt}}\n"
+-            "\\pgflineto{\\pgfpoint{%fpt}{%fpt}}\n"
+-            "\\pgflineto{\\pgfpoint{%fpt}{%fpt}}\n"
+-            "\\pgfpathclose\n"
+-            "\\pgfusepath{fill,stroke}\n",
+-            prim->verts[2].xyz[0], prim->verts[2].xyz[1],
+-            prim->verts[1].xyz[0], prim->verts[1].xyz[1],
+-            prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-    break;
+-  case GL2PS_TEXT :
+-    fprintf(gl2ps->stream, "{\n\\pgftransformshift{\\pgfpoint{%fpt}{%fpt}}\n",
+-            prim->verts[0].xyz[0], prim->verts[0].xyz[1]);
+-
+-    if(prim->data.text->angle)
+-      fprintf(gl2ps->stream, "\\pgftransformrotate{%f}{", prim->data.text->angle);
+-
+-    fprintf(gl2ps->stream, "\\pgfnode{rectangle}{%s}{\\fontsize{%d}{0}\\selectfont",
+-            gl2psPGFTextAlignment(prim->data.text->alignment),
+-            prim->data.text->fontsize);
+-
+-    fprintf(gl2ps->stream, "\\textcolor[rgb]{%g,%g,%g}{{%s}}",
+-            prim->verts[0].rgba[0], prim->verts[0].rgba[1],
+-            prim->verts[0].rgba[2], prim->data.text->str);
+-
+-    fprintf(gl2ps->stream, "}{}{\\pgfusepath{discard}}}\n");
+-    break;
+-  case GL2PS_SPECIAL :
+-    /* alignment contains the format for which the special output text
+-       is intended */
+-    if (prim->data.text->alignment == GL2PS_PGF)
+-      fprintf(gl2ps->stream, "%s\n", prim->data.text->str);
+-    break;
+-  default :
+-    break;
+-  }
+-}
+-
+-static void gl2psPrintPGFFooter(void)
+-{
+-  fprintf(gl2ps->stream, "\\end{pgfpicture}\n");
+-}
+-
+-static void gl2psPrintPGFBeginViewport(GLint viewport[4])
+-{
+-  GLint index;
+-  GLfloat rgba[4];
+-  int x = viewport[0], y = viewport[1], w = viewport[2], h = viewport[3];
+-
+-  glRenderMode(GL_FEEDBACK);
+-
+-  if(gl2ps->header){
+-    gl2psPrintPGFHeader();
+-    gl2ps->header = GL_FALSE;
+-  }
+-
+-  fprintf(gl2ps->stream, "\\begin{pgfscope}\n");
+-  if(gl2ps->options & GL2PS_DRAW_BACKGROUND){
+-    if(gl2ps->colormode == GL_RGBA || gl2ps->colorsize == 0){
+-      glGetFloatv(GL_COLOR_CLEAR_VALUE, rgba);
+-    }
+-    else{
+-      glGetIntegerv(GL_INDEX_CLEAR_VALUE, &index);
+-      rgba[0] = gl2ps->colormap[index][0];
+-      rgba[1] = gl2ps->colormap[index][1];
+-      rgba[2] = gl2ps->colormap[index][2];
+-      rgba[3] = 1.0F;
+-    }
+-    gl2psPrintPGFColor(rgba);
+-    fprintf(gl2ps->stream, 
+-            "\\pgfpathrectangle{\\pgfpoint{%dpt}{%dpt}}"
+-            "{\\pgfpoint{%dpt}{%dpt}}\n"
+-            "\\pgfusepath{fill}\n",
+-            x, y, w, h);
+-  }
+-  
+-  fprintf(gl2ps->stream, 
+-          "\\pgfpathrectangle{\\pgfpoint{%dpt}{%dpt}}"
+-          "{\\pgfpoint{%dpt}{%dpt}}\n"
+-          "\\pgfusepath{clip}\n",
+-          x, y, w, h);
+-}
+-
+-static GLint gl2psPrintPGFEndViewport(void)
+-{
+-  GLint res;
+-  res = gl2psPrintPrimitives();
+-  fprintf(gl2ps->stream, "\\end{pgfscope}\n");
+-  return res;
+-}
+-
+-static void gl2psPrintPGFFinalPrimitive(void)
+-{
+-}
+-
+-/* definition of the PGF backend */
+-
+-static GL2PSbackend gl2psPGF = {
+-  gl2psPrintPGFHeader,
+-  gl2psPrintPGFFooter,
+-  gl2psPrintPGFBeginViewport,
+-  gl2psPrintPGFEndViewport,
+-  gl2psPrintPGFPrimitive,
+-  gl2psPrintPGFFinalPrimitive,
+-  "tex",
+-  "PGF Latex Graphics"
+-};
+-
+-/********************************************************************* 
+- *
+- * General primitive printing routine
+- *
+- *********************************************************************/
+-
+-/* Warning: the ordering of the backends must match the format
+-   #defines in gl2ps.h */
+-
+-static GL2PSbackend *gl2psbackends[] = {
+-  &gl2psPS,  /* 0 */
+-  &gl2psEPS, /* 1 */
+-  &gl2psTEX, /* 2 */
+-  &gl2psPDF, /* 3 */
+-  &gl2psSVG, /* 4 */
+-  &gl2psPGF  /* 5 */
+-};
+-
+-static void gl2psComputeTightBoundingBox(void *data)
+-{
+-  GL2PSprimitive *prim;
+-  int i;
+-
+-  prim = *(GL2PSprimitive**)data;
+-
+-  for(i = 0; i < prim->numverts; i++){
+-    if(prim->verts[i].xyz[0] < gl2ps->viewport[0])
+-      gl2ps->viewport[0] = (GLint)prim->verts[i].xyz[0];
+-    if(prim->verts[i].xyz[0] > gl2ps->viewport[2])
+-      gl2ps->viewport[2] = (GLint)(prim->verts[i].xyz[0] + 0.5F);
+-    if(prim->verts[i].xyz[1] < gl2ps->viewport[1])
+-      gl2ps->viewport[1] = (GLint)prim->verts[i].xyz[1];
+-    if(prim->verts[i].xyz[1] > gl2ps->viewport[3])
+-      gl2ps->viewport[3] = (GLint)(prim->verts[i].xyz[1] + 0.5F);
+-  }
+-}  
+-
+-static GLint gl2psPrintPrimitives(void)
+-{
+-  GL2PSbsptree *root;
+-  GL2PSxyz eye = {0.0F, 0.0F, 100.0F * GL2PS_ZSCALE};
+-  GLint used;
+-
+-  used = glRenderMode(GL_RENDER);
+-
+-  if(used < 0){
+-    gl2psMsg(GL2PS_INFO, "OpenGL feedback buffer overflow");
+-    return GL2PS_OVERFLOW;
+-  }
+-
+-  if(used > 0)
+-    gl2psParseFeedbackBuffer(used);
+-
+-  gl2psRescaleAndOffset();
+-
+-  if(gl2ps->header){
+-    if(gl2psListNbr(gl2ps->primitives) && 
+-       (gl2ps->options & GL2PS_TIGHT_BOUNDING_BOX)){
+-      gl2ps->viewport[0] = gl2ps->viewport[1] = 100000;
+-      gl2ps->viewport[2] = gl2ps->viewport[3] = -100000;
+-      gl2psListAction(gl2ps->primitives, gl2psComputeTightBoundingBox);
+-    }
+-    (gl2psbackends[gl2ps->format]->printHeader)();
+-    gl2ps->header = GL_FALSE;
+-  }
+-
+-  if(!gl2psListNbr(gl2ps->primitives)){
+-    /* empty feedback buffer and/or nothing else to print */
+-    return GL2PS_NO_FEEDBACK;
+-  }
+-
+-  switch(gl2ps->sort){
+-  case GL2PS_NO_SORT :
+-    gl2psListAction(gl2ps->primitives, gl2psbackends[gl2ps->format]->printPrimitive);
+-    gl2psListAction(gl2ps->primitives, gl2psFreePrimitive);
+-    /* reset the primitive list, waiting for the next viewport */
+-    gl2psListReset(gl2ps->primitives);
+-    break;
+-  case GL2PS_SIMPLE_SORT :
+-    gl2psListSort(gl2ps->primitives, gl2psCompareDepth);
+-    if(gl2ps->options & GL2PS_OCCLUSION_CULL){
+-      gl2psListActionInverse(gl2ps->primitives, gl2psAddInImageTree);
+-      gl2psFreeBspImageTree(&gl2ps->imagetree);
+-    }
+-    gl2psListAction(gl2ps->primitives, gl2psbackends[gl2ps->format]->printPrimitive);
+-    gl2psListAction(gl2ps->primitives, gl2psFreePrimitive);
+-    /* reset the primitive list, waiting for the next viewport */
+-    gl2psListReset(gl2ps->primitives);
+-    break;
+-  case GL2PS_BSP_SORT :
+-    root = (GL2PSbsptree*)gl2psMalloc(sizeof(GL2PSbsptree));
+-    gl2psBuildBspTree(root, gl2ps->primitives);
+-    if(GL_TRUE == gl2ps->boundary) gl2psBuildPolygonBoundary(root);
+-    if(gl2ps->options & GL2PS_OCCLUSION_CULL){
+-      gl2psTraverseBspTree(root, eye, -GL2PS_EPSILON, gl2psLess,
+-                           gl2psAddInImageTree, 1);
+-      gl2psFreeBspImageTree(&gl2ps->imagetree);
+-    }
+-    gl2psTraverseBspTree(root, eye, GL2PS_EPSILON, gl2psGreater, 
+-                         gl2psbackends[gl2ps->format]->printPrimitive, 0);
+-    gl2psFreeBspTree(&root);
+-    /* reallocate the primitive list (it's been deleted by
+-       gl2psBuildBspTree) in case there is another viewport */
+-    gl2ps->primitives = gl2psListCreate(500, 500, sizeof(GL2PSprimitive*));
+-    break;
+-  }
+-  gl2psbackends[gl2ps->format]->printFinalPrimitive();
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-/********************************************************************* 
+- *
+- * Public routines
+- *
+- *********************************************************************/
+-
+-GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer, 
+-                                  GLint viewport[4], GLint format, GLint sort,
+-                                  GLint options, GLint colormode,
+-                                  GLint colorsize, GL2PSrgba *colormap,
+-                                  GLint nr, GLint ng, GLint nb, GLint buffersize,
+-                                  FILE *stream, const char *filename)
+-{
+-  GLint index;
+-  int i;
+-
+-  if(gl2ps){
+-    gl2psMsg(GL2PS_ERROR, "gl2psBeginPage called in wrong program state");
+-    return GL2PS_ERROR;
+-  }
+-
+-  gl2ps = (GL2PScontext*)gl2psMalloc(sizeof(GL2PScontext));
+-
+-  if(format >= 0 && format < (GLint)(sizeof(gl2psbackends) / sizeof(gl2psbackends[0]))){
+-    gl2ps->format = format;
+-  }
+-  else {
+-    gl2psMsg(GL2PS_ERROR, "Unknown output format: %d", format);
+-    gl2psFree(gl2ps);
+-    gl2ps = NULL;
+-    return GL2PS_ERROR;
+-  }
+-
+-  switch(sort){
+-  case GL2PS_NO_SORT :
+-  case GL2PS_SIMPLE_SORT :
+-  case GL2PS_BSP_SORT :
+-    gl2ps->sort = sort;
+-    break;
+-  default :
+-    gl2psMsg(GL2PS_ERROR, "Unknown sorting algorithm: %d", sort);
+-    gl2psFree(gl2ps);
+-    gl2ps = NULL;
+-    return GL2PS_ERROR;
+-  }
+-
+-  if(stream){
+-    gl2ps->stream = stream;
+-  }
+-  else{
+-    gl2psMsg(GL2PS_ERROR, "Bad file pointer");
+-    gl2psFree(gl2ps);
+-    gl2ps = NULL;
+-    return GL2PS_ERROR;
+-  }
+-
+-  gl2ps->header = GL_TRUE;
+-  gl2ps->maxbestroot = 10;
+-  gl2ps->options = options;
+-  gl2ps->compress = NULL;
+-  gl2ps->imagemap_head = NULL;
+-  gl2ps->imagemap_tail = NULL;
+-
+-  if(gl2ps->options & GL2PS_USE_CURRENT_VIEWPORT){
+-    glGetIntegerv(GL_VIEWPORT, gl2ps->viewport);
+-  }
+-  else{
+-    for(i = 0; i < 4; i++){
+-      gl2ps->viewport[i] = viewport[i];
+-    }
+-  }
+-
+-  if(!gl2ps->viewport[2] || !gl2ps->viewport[3]){
+-    gl2psMsg(GL2PS_ERROR, "Incorrect viewport (x=%d, y=%d, width=%d, height=%d)",
+-             gl2ps->viewport[0], gl2ps->viewport[1], 
+-             gl2ps->viewport[2], gl2ps->viewport[3]);
+-    gl2psFree(gl2ps);
+-    gl2ps = NULL;
+-    return GL2PS_ERROR;
+-  }
+-
+-  gl2ps->threshold[0] = nr ? 1.0F / (GLfloat)nr : 0.064F;
+-  gl2ps->threshold[1] = ng ? 1.0F / (GLfloat)ng : 0.034F;
+-  gl2ps->threshold[2] = nb ? 1.0F / (GLfloat)nb : 0.100F;
+-  gl2ps->colormode = colormode;
+-  gl2ps->buffersize = buffersize > 0 ? buffersize : 2048 * 2048;
+-  for(i = 0; i < 3; i++){
+-    gl2ps->lastvertex.xyz[i] = -1.0F;
+-  }
+-  for(i = 0; i < 4; i++){
+-    gl2ps->lastvertex.rgba[i] = -1.0F;
+-    gl2ps->lastrgba[i] = -1.0F;
+-  }
+-  gl2ps->lastlinewidth = -1.0F;
+-  gl2ps->lastpattern = 0;
+-  gl2ps->lastfactor = 0;
+-  gl2ps->imagetree = NULL;
+-  gl2ps->primitivetoadd = NULL;
+-  gl2ps->zerosurfacearea = GL_FALSE;  
+-  gl2ps->pdfprimlist = NULL;
+-  gl2ps->pdfgrouplist = NULL;
+-  gl2ps->xreflist = NULL;
+-  
+-  /* get default blending mode from current OpenGL state (enabled by
+-     default for SVG) */
+-  gl2ps->blending = (gl2ps->format == GL2PS_SVG) ? GL_TRUE : glIsEnabled(GL_BLEND);
+-  glGetIntegerv(GL_BLEND_SRC, &gl2ps->blendfunc[0]);
+-  glGetIntegerv(GL_BLEND_DST, &gl2ps->blendfunc[1]);
+-
+-  if(gl2ps->colormode == GL_RGBA){
+-    gl2ps->colorsize = 0;
+-    gl2ps->colormap = NULL;
+-    glGetFloatv(GL_COLOR_CLEAR_VALUE, gl2ps->bgcolor);
+-  }
+-  else if(gl2ps->colormode == GL_COLOR_INDEX){
+-    if(!colorsize || !colormap){
+-      gl2psMsg(GL2PS_ERROR, "Missing colormap for GL_COLOR_INDEX rendering");
+-      gl2psFree(gl2ps);
+-      gl2ps = NULL;
+-      return GL2PS_ERROR;
+-    }
+-    gl2ps->colorsize = colorsize;
+-    gl2ps->colormap = (GL2PSrgba*)gl2psMalloc(gl2ps->colorsize * sizeof(GL2PSrgba));
+-    memcpy(gl2ps->colormap, colormap, gl2ps->colorsize * sizeof(GL2PSrgba));
+-    glGetIntegerv(GL_INDEX_CLEAR_VALUE, &index);
+-    gl2ps->bgcolor[0] = gl2ps->colormap[index][0];
+-    gl2ps->bgcolor[1] = gl2ps->colormap[index][1];
+-    gl2ps->bgcolor[2] = gl2ps->colormap[index][2];
+-    gl2ps->bgcolor[3] = 1.0F;
+-  }
+-  else{
+-    gl2psMsg(GL2PS_ERROR, "Unknown color mode in gl2psBeginPage");
+-    gl2psFree(gl2ps);
+-    gl2ps = NULL;
+-    return GL2PS_ERROR;
+-  }
+-
+-  if(!title){
+-    gl2ps->title = (char*)gl2psMalloc(sizeof(char));
+-    gl2ps->title[0] = '\0';
+-  }
+-  else{
+-    gl2ps->title = (char*)gl2psMalloc((strlen(title)+1)*sizeof(char));
+-    strcpy(gl2ps->title, title);
+-  }
+-    
+-  if(!producer){
+-    gl2ps->producer = (char*)gl2psMalloc(sizeof(char));
+-    gl2ps->producer[0] = '\0';
+-  }
+-  else{
+-    gl2ps->producer = (char*)gl2psMalloc((strlen(producer)+1)*sizeof(char));
+-    strcpy(gl2ps->producer, producer);
+-  }
+-  
+-  if(!filename){
+-    gl2ps->filename = (char*)gl2psMalloc(sizeof(char));
+-    gl2ps->filename[0] = '\0';
+-  }
+-  else{
+-    gl2ps->filename = (char*)gl2psMalloc((strlen(filename)+1)*sizeof(char));
+-    strcpy(gl2ps->filename, filename);
+-  }
+-
+-  gl2ps->primitives = gl2psListCreate(500, 500, sizeof(GL2PSprimitive*));
+-  gl2ps->auxprimitives = gl2psListCreate(100, 100, sizeof(GL2PSprimitive*));
+-  gl2ps->feedback = (GLfloat*)gl2psMalloc(gl2ps->buffersize * sizeof(GLfloat));
+-  glFeedbackBuffer(gl2ps->buffersize, GL_3D_COLOR, gl2ps->feedback);
+-  glRenderMode(GL_FEEDBACK);  
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psEndPage(void)
+-{
+-  GLint res;
+-
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  res = gl2psPrintPrimitives();
+-
+-  if(res != GL2PS_OVERFLOW)
+-    (gl2psbackends[gl2ps->format]->printFooter)();
+-  
+-  fflush(gl2ps->stream);
+-
+-  gl2psListDelete(gl2ps->primitives);
+-  gl2psListDelete(gl2ps->auxprimitives);
+-  gl2psFreeImagemap(gl2ps->imagemap_head);
+-  gl2psFree(gl2ps->colormap);
+-  gl2psFree(gl2ps->title);
+-  gl2psFree(gl2ps->producer);
+-  gl2psFree(gl2ps->filename);
+-  gl2psFree(gl2ps->feedback);
+-  gl2psFree(gl2ps);
+-  gl2ps = NULL;
+-
+-  return res;
+-}
+-
+-GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4])
+-{
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  (gl2psbackends[gl2ps->format]->beginViewport)(viewport);
+-  
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psEndViewport(void)
+-{
+-  GLint res;
+-
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  res = (gl2psbackends[gl2ps->format]->endViewport)();
+-
+-  /* reset last used colors, line widths */
+-  gl2ps->lastlinewidth = -1.0F;
+-
+-  return res;
+-}
+-
+-GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname, 
+-                                GLshort fontsize, GLint alignment, GLfloat angle)
+-{
+-  return gl2psAddText(GL2PS_TEXT, str, fontname, fontsize, alignment, angle);
+-}
+-
+-GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, GLshort fontsize)
+-{
+-  return gl2psAddText(GL2PS_TEXT, str, fontname, fontsize, GL2PS_TEXT_BL, 0.0F);
+-}
+-
+-GL2PSDLL_API GLint gl2psSpecial(GLint format, const char *str)
+-{
+-  return gl2psAddText(GL2PS_SPECIAL, str, "", 0, format, 0.0F);
+-}
+-
+-GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
+-                                   GLint xorig, GLint yorig,
+-                                   GLenum format, GLenum type, 
+-                                   const void *pixels)
+-{
+-  int size, i;
+-  GLfloat pos[4], *piv;
+-  GL2PSprimitive *prim;
+-  GLboolean valid;
+-
+-  if(!gl2ps || !pixels) return GL2PS_UNINITIALIZED;
+-
+-  if((width <= 0) || (height <= 0)) return GL2PS_ERROR;
+-
+-  if(gl2ps->options & GL2PS_NO_PIXMAP) return GL2PS_SUCCESS;
+-
+-  if((format != GL_RGB && format != GL_RGBA) || type != GL_FLOAT){
+-    gl2psMsg(GL2PS_ERROR, "gl2psDrawPixels only implemented for "
+-             "GL_RGB/GL_RGBA, GL_FLOAT pixels");
+-    return GL2PS_ERROR;
+-  }
+-
+-  glGetBooleanv(GL_CURRENT_RASTER_POSITION_VALID, &valid);
+-  if(GL_FALSE == valid) return GL2PS_SUCCESS; /* the primitive is culled */
+-
+-  glGetFloatv(GL_CURRENT_RASTER_POSITION, pos);
+-
+-  prim = (GL2PSprimitive*)gl2psMalloc(sizeof(GL2PSprimitive));
+-  prim->type = GL2PS_PIXMAP;
+-  prim->boundary = 0;
+-  prim->numverts = 1;
+-  prim->verts = (GL2PSvertex*)gl2psMalloc(sizeof(GL2PSvertex));
+-  prim->verts[0].xyz[0] = pos[0] + xorig;
+-  prim->verts[0].xyz[1] = pos[1] + yorig;
+-  prim->verts[0].xyz[2] = pos[2];
+-  prim->culled = 0;
+-  prim->offset = 0;
+-  prim->pattern = 0;
+-  prim->factor = 0;
+-  prim->width = 1;
+-  glGetFloatv(GL_CURRENT_RASTER_COLOR, prim->verts[0].rgba);
+-  prim->data.image = (GL2PSimage*)gl2psMalloc(sizeof(GL2PSimage));
+-  prim->data.image->width = width;
+-  prim->data.image->height = height;
+-  prim->data.image->format = format;
+-  prim->data.image->type = type;
+-
+-  switch(format){
+-  case GL_RGBA:
+-    if(gl2ps->options & GL2PS_NO_BLENDING || !gl2ps->blending){
+-      /* special case: blending turned off */
+-      prim->data.image->format = GL_RGB;
+-      size = height * width * 3;
+-      prim->data.image->pixels = (GLfloat*)gl2psMalloc(size * sizeof(GLfloat));
+-      piv = (GLfloat*)pixels;
+-      for(i = 0; i < size; ++i, ++piv){
+-        prim->data.image->pixels[i] = *piv;
+-        if(!((i+1)%3))
+-          ++piv;
+-      }   
+-    }
+-    else{
+-      size = height * width * 4;
+-      prim->data.image->pixels = (GLfloat*)gl2psMalloc(size * sizeof(GLfloat));
+-      memcpy(prim->data.image->pixels, pixels, size * sizeof(GLfloat));
+-    }
+-    break;
+-  case GL_RGB:
+-  default:
+-    size = height * width * 3;
+-    prim->data.image->pixels = (GLfloat*)gl2psMalloc(size * sizeof(GLfloat));
+-    memcpy(prim->data.image->pixels, pixels, size * sizeof(GLfloat));
+-    break;
+-  }
+-
+-  gl2psListAdd(gl2ps->auxprimitives, &prim);
+-  glPassThrough(GL2PS_DRAW_PIXELS_TOKEN);
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psDrawImageMap(GLsizei width, GLsizei height,
+-                                     const GLfloat position[3],
+-                                     const unsigned char *imagemap){
+-  int size, i;
+-  int sizeoffloat = sizeof(GLfloat);
+-  
+-  if(!gl2ps || !imagemap) return GL2PS_UNINITIALIZED;
+-
+-  if((width <= 0) || (height <= 0)) return GL2PS_ERROR;
+-  
+-  size = height + height * ((width - 1) / 8);
+-  glPassThrough(GL2PS_IMAGEMAP_TOKEN);
+-  glBegin(GL_POINTS);
+-  glVertex3f(position[0], position[1],position[2]);
+-  glEnd();
+-  glPassThrough((GLfloat)width);
+-  glPassThrough((GLfloat)height);
+-  for(i = 0; i < size; i += sizeoffloat){
+-    float *value = (float*)imagemap;
+-    glPassThrough(*value);
+-    imagemap += sizeoffloat;
+-  }
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psEnable(GLint mode)
+-{
+-  GLint tmp;
+-
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  switch(mode){
+-  case GL2PS_POLYGON_OFFSET_FILL :
+-    glPassThrough(GL2PS_BEGIN_OFFSET_TOKEN);
+-    glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &gl2ps->offset[0]);
+-    glGetFloatv(GL_POLYGON_OFFSET_UNITS, &gl2ps->offset[1]);
+-    break;
+-  case GL2PS_POLYGON_BOUNDARY :
+-    glPassThrough(GL2PS_BEGIN_BOUNDARY_TOKEN);
+-    break;
+-  case GL2PS_LINE_STIPPLE :
+-    glPassThrough(GL2PS_BEGIN_STIPPLE_TOKEN);
+-    glGetIntegerv(GL_LINE_STIPPLE_PATTERN, &tmp);
+-    glPassThrough((GLfloat)tmp);
+-    glGetIntegerv(GL_LINE_STIPPLE_REPEAT, &tmp);
+-    glPassThrough((GLfloat)tmp);
+-    break;
+-  case GL2PS_BLEND :
+-    glPassThrough(GL2PS_BEGIN_BLEND_TOKEN);
+-    break;
+-  default :
+-    gl2psMsg(GL2PS_WARNING, "Unknown mode in gl2psEnable: %d", mode);
+-    return GL2PS_WARNING;
+-  }
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psDisable(GLint mode)
+-{
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  switch(mode){
+-  case GL2PS_POLYGON_OFFSET_FILL :
+-    glPassThrough(GL2PS_END_OFFSET_TOKEN);
+-    break;
+-  case GL2PS_POLYGON_BOUNDARY :
+-    glPassThrough(GL2PS_END_BOUNDARY_TOKEN);
+-    break;
+-  case GL2PS_LINE_STIPPLE :
+-    glPassThrough(GL2PS_END_STIPPLE_TOKEN);
+-    break;
+-  case GL2PS_BLEND :
+-    glPassThrough(GL2PS_END_BLEND_TOKEN);
+-    break;
+-  default :
+-    gl2psMsg(GL2PS_WARNING, "Unknown mode in gl2psDisable: %d", mode);
+-    return GL2PS_WARNING;
+-  }
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psPointSize(GLfloat value)
+-{
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  glPassThrough(GL2PS_POINT_SIZE_TOKEN);
+-  glPassThrough(value);
+-  
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psLineWidth(GLfloat value)
+-{
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  glPassThrough(GL2PS_LINE_WIDTH_TOKEN);
+-  glPassThrough(value);
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psBlendFunc(GLenum sfactor, GLenum dfactor)
+-{
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  if(GL_FALSE == gl2psSupportedBlendMode(sfactor, dfactor))
+-    return GL2PS_WARNING;
+-
+-  glPassThrough(GL2PS_SRC_BLEND_TOKEN);
+-  glPassThrough((GLfloat)sfactor);
+-  glPassThrough(GL2PS_DST_BLEND_TOKEN);
+-  glPassThrough((GLfloat)dfactor);
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psSetOptions(GLint options)
+-{
+-  if(!gl2ps) return GL2PS_UNINITIALIZED;
+-
+-  gl2ps->options = options;
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API GLint gl2psGetOptions(GLint *options)
+-{
+-  if(!gl2ps) {
+-    *options = 0;
+-    return GL2PS_UNINITIALIZED;
+-  }
+-
+-  *options = gl2ps->options;
+-
+-  return GL2PS_SUCCESS;
+-}
+-
+-GL2PSDLL_API const char *gl2psGetFileExtension(GLint format)
+-{
+-  if(format >= 0 && format < (GLint)(sizeof(gl2psbackends) / sizeof(gl2psbackends[0])))
+-    return gl2psbackends[format]->file_extension;
+-  else
+-    return "Unknown format";
+-}
+-
+-GL2PSDLL_API const char *gl2psGetFormatDescription(GLint format)
+-{
+-  if(format >= 0 && format < (GLint)(sizeof(gl2psbackends) / sizeof(gl2psbackends[0])))
+-    return gl2psbackends[format]->description;
+-  else
+-    return "Unknown format";
+-}
+--- a/Graphics/gl2ps.h
++++ /dev/null
+@@ -1,200 +0,0 @@
+-/*
+- * GL2PS, an OpenGL to PostScript Printing Library
+- * Copyright (C) 1999-2009 C. Geuzaine
+- *
+- * This program is free software; you can redistribute it and/or
+- * modify it under the terms of either:
+- *
+- * a) the GNU Library General Public License as published by the Free
+- * Software Foundation, either version 2 of the License, or (at your
+- * option) any later version; or
+- *
+- * b) the GL2PS License as published by Christophe Geuzaine, 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 either
+- * the GNU Library General Public License or the GL2PS License for
+- * more details.
+- *
+- * You should have received a copy of the GNU Library General Public
+- * License along with this library in the file named "COPYING.LGPL";
+- * if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+- * Cambridge, MA 02139, USA.
+- *
+- * You should have received a copy of the GL2PS License with this
+- * library in the file named "COPYING.GL2PS"; if not, I will be glad
+- * to provide one.
+- *
+- * For the latest info about gl2ps and a full list of contributors,
+- * see http://www.geuz.org/gl2ps/.
+- *
+- * Please report all bugs and problems to <gl2ps at geuz.org>.
+- */
+-
+-#ifndef __GL2PS_H__
+-#define __GL2PS_H__
+-
+-#include <stdio.h>
+-#include <stdlib.h>
+-#include "GmshConfig.h"
+-
+-/* Define GL2PSDLL at compile time to build a Windows DLL */
+-
+-#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
+-#  if defined(_MSC_VER)
+-#    pragma warning(disable:4115)
+-#    pragma warning(disable:4996)
+-#  endif
+-#  include <windows.h>
+-#  if defined(GL2PSDLL)
+-#    if defined(GL2PSDLL_EXPORTS)
+-#      define GL2PSDLL_API __declspec(dllexport)
+-#    else
+-#      define GL2PSDLL_API __declspec(dllimport)
+-#    endif
+-#  else
+-#    define GL2PSDLL_API
+-#  endif
+-#else
+-#  define GL2PSDLL_API
+-#endif
+-
+-#if defined(__APPLE__) || defined(HAVE_OPENGL_GL_H)
+-#  include <OpenGL/gl.h>
+-#else
+-#  include <GL/gl.h>
+-#endif
+-
+-/* Support for compressed PostScript/PDF/SVG and for embedded PNG
+-   images in SVG */
+-
+-#if defined(HAVE_ZLIB) || defined(HAVE_LIBZ)
+-#  define GL2PS_HAVE_ZLIB
+-#  if defined(HAVE_LIBPNG) || defined(HAVE_PNG)
+-#    define GL2PS_HAVE_LIBPNG
+-#  endif
+-#endif
+-
+-/* Version number */
+-
+-#define GL2PS_MAJOR_VERSION 1
+-#define GL2PS_MINOR_VERSION 3
+-#define GL2PS_PATCH_VERSION 5
+-#define GL2PS_EXTRA_VERSION ""
+-
+-#define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \
+-                       0.01 * GL2PS_MINOR_VERSION + \
+-                       0.0001 * GL2PS_PATCH_VERSION)
+-
+-#define GL2PS_COPYRIGHT "(C) 1999-2009 C. Geuzaine"
+-
+-/* Output file formats (the values and the ordering are important!) */
+-
+-#define GL2PS_PS  0
+-#define GL2PS_EPS 1
+-#define GL2PS_TEX 2
+-#define GL2PS_PDF 3
+-#define GL2PS_SVG 4
+-#define GL2PS_PGF 5
+-
+-/* Sorting algorithms */
+-
+-#define GL2PS_NO_SORT     1
+-#define GL2PS_SIMPLE_SORT 2
+-#define GL2PS_BSP_SORT    3
+-
+-/* Message levels and error codes */
+-
+-#define GL2PS_SUCCESS       0
+-#define GL2PS_INFO          1
+-#define GL2PS_WARNING       2
+-#define GL2PS_ERROR         3
+-#define GL2PS_NO_FEEDBACK   4
+-#define GL2PS_OVERFLOW      5
+-#define GL2PS_UNINITIALIZED 6
+-
+-/* Options for gl2psBeginPage */
+-
+-#define GL2PS_NONE                 0
+-#define GL2PS_DRAW_BACKGROUND      (1<<0)
+-#define GL2PS_SIMPLE_LINE_OFFSET   (1<<1)
+-#define GL2PS_SILENT               (1<<2)
+-#define GL2PS_BEST_ROOT            (1<<3)
+-#define GL2PS_OCCLUSION_CULL       (1<<4)
+-#define GL2PS_NO_TEXT              (1<<5)
+-#define GL2PS_LANDSCAPE            (1<<6)
+-#define GL2PS_NO_PS3_SHADING       (1<<7)
+-#define GL2PS_NO_PIXMAP            (1<<8)
+-#define GL2PS_USE_CURRENT_VIEWPORT (1<<9)
+-#define GL2PS_COMPRESS             (1<<10)
+-#define GL2PS_NO_BLENDING          (1<<11)
+-#define GL2PS_TIGHT_BOUNDING_BOX   (1<<12)
+-
+-/* Arguments for gl2psEnable/gl2psDisable */
+-
+-#define GL2PS_POLYGON_OFFSET_FILL 1
+-#define GL2PS_POLYGON_BOUNDARY    2
+-#define GL2PS_LINE_STIPPLE        3
+-#define GL2PS_BLEND               4
+-
+-/* Text alignment (o=raster position; default mode is BL):
+-   +---+ +---+ +---+ +---+ +---+ +---+ +-o-+ o---+ +---o 
+-   | o | o   | |   o |   | |   | |   | |   | |   | |   | 
+-   +---+ +---+ +---+ +-o-+ o---+ +---o +---+ +---+ +---+ 
+-    C     CL    CR    B     BL    BR    T     TL    TR */
+-
+-#define GL2PS_TEXT_C  1
+-#define GL2PS_TEXT_CL 2
+-#define GL2PS_TEXT_CR 3
+-#define GL2PS_TEXT_B  4
+-#define GL2PS_TEXT_BL 5
+-#define GL2PS_TEXT_BR 6
+-#define GL2PS_TEXT_T  7
+-#define GL2PS_TEXT_TL 8
+-#define GL2PS_TEXT_TR 9
+-
+-typedef GLfloat GL2PSrgba[4];
+-
+-#if defined(__cplusplus)
+-extern "C" {
+-#endif
+-
+-GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer, 
+-                                  GLint viewport[4], GLint format, GLint sort,
+-                                  GLint options, GLint colormode,
+-                                  GLint colorsize, GL2PSrgba *colormap, 
+-                                  GLint nr, GLint ng, GLint nb, GLint buffersize,
+-                                  FILE *stream, const char *filename);
+-GL2PSDLL_API GLint gl2psEndPage(void);
+-GL2PSDLL_API GLint gl2psSetOptions(GLint options);
+-GL2PSDLL_API GLint gl2psGetOptions(GLint *options);
+-GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]);
+-GL2PSDLL_API GLint gl2psEndViewport(void);
+-GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, 
+-                             GLshort fontsize);
+-GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname, 
+-                                GLshort fontsize, GLint align, GLfloat angle);
+-GL2PSDLL_API GLint gl2psSpecial(GLint format, const char *str);
+-GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
+-                                   GLint xorig, GLint yorig,
+-                                   GLenum format, GLenum type, const void *pixels);
+-GL2PSDLL_API GLint gl2psEnable(GLint mode);
+-GL2PSDLL_API GLint gl2psDisable(GLint mode);
+-GL2PSDLL_API GLint gl2psPointSize(GLfloat value);
+-GL2PSDLL_API GLint gl2psLineWidth(GLfloat value);
+-GL2PSDLL_API GLint gl2psBlendFunc(GLenum sfactor, GLenum dfactor);
+-
+-/* undocumented */
+-GL2PSDLL_API GLint gl2psDrawImageMap(GLsizei width, GLsizei height,
+-                                     const GLfloat position[3],
+-                                     const unsigned char *imagemap);
+-GL2PSDLL_API const char *gl2psGetFileExtension(GLint format);
+-GL2PSDLL_API const char *gl2psGetFormatDescription(GLint format);
+-
+-#if defined(__cplusplus)
+-}
+-#endif
+-
+-#endif /* __GL2PS_H__ */
+--- a/Graphics/CMakeLists.txt
++++ b/Graphics/CMakeLists.txt
+@@ -15,7 +15,6 @@
+   drawScales.cpp 
+   drawGraph2d.cpp 
+   drawGlyph.cpp 
+-  gl2ps.cpp
+   gl2gif.cpp
+   gl2jpeg.cpp
+   gl2png.cpp
diff --git a/debian/patches/series b/debian/patches/series
index e950e91..87a5491 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1,3 +1,4 @@
 skip_license_file.patch
 switch_off_metis_and_tetgen.patch
 fix_spelling_errors.patch
+delete_gl2ps_from_source.patch
diff --git a/debian/rules b/debian/rules
index b61f187..867c56f 100755
--- a/debian/rules
+++ b/debian/rules
@@ -4,7 +4,7 @@ BUILDDIR = $(CURDIR)/debian/build
 %:
 	dh $@ --buildsystem=cmake --builddirectory=$(BUILDDIR)
 
-extra_flags += -DCMAKE_CXX_FLAGS="-DMPICH_SKIP_MPICXX -DOMPI_SKIP_MPICXX -fopenmp" -DCMAKE_INCLUDE_PATH:="/usr/include/mpi"
+extra_flags += -DCMAKE_CXX_FLAGS="-DMPICH_SKIP_MPICXX -DOMPI_SKIP_MPICXX -fopenmp -lgl2ps -lGL -lglut" -DCMAKE_INCLUDE_PATH:="/usr/include/mpi"
 
 override_dh_auto_clean:
 	rm -rf $(BUILDDIR)

-- 
Gmsh packaging. Gmsh is an automatic 3D finite element mesh generator. 



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