text: /* $Id: gl2ps.h 173 2007-05-20 15:51:51Z krischnamurti $ */
  /*
   * GL2PS, an OpenGL to PostScript Printing Library
   * Copyright (C) 1999-2006 Christophe Geuzaine <geuz@geuz.org>
   *
   * 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, see http://www.geuz.org/gl2ps/.
   * Please report all bugs and problems to <gl2ps@geuz.org>.
   */
  
  #ifndef __GL2PS_H__
  #define __GL2PS_H__
  
  #include <stdio.h>
  #include <stdlib.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)
  #    if (_MSC_VER >= 1400) /* VS8 - not sure about VC7 */
  #      pragma warning(disable: 4996) /* MS security enhancements */
  #    endif
  #  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 2
  #define GL2PS_EXTRA_VERSION ""
  
  #define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \
                         0.01 * GL2PS_MINOR_VERSION + \
                         0.0001 * GL2PS_PATCH_VERSION)
  
  #define GL2PS_COPYRIGHT "(C) 1999-2006 Christophe Geuzaine (geuz@geuz.org)"
  
  /* 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 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__ */
  