source: trunk/source/visualization/externals/gl2ps/include/gl2ps.h @ 919

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1//
2// ********************************************************************
3// * License and Disclaimer                                           *
4// *                                                                  *
5// * The  Geant4 software  is  copyright of the Copyright Holders  of *
6// * the Geant4 Collaboration.  It is provided  under  the terms  and *
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19// * technical work of the GEANT4 collaboration.                      *
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21// * any work based  on the software)  you  agree  to acknowledge its *
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23// * acceptance of all terms of the Geant4 Software license.          *
24// ********************************************************************
25//
26/*
27 * GL2PS, an OpenGL to PostScript Printing Library
28 * Copyright (C) 1999-2003  Christophe Geuzaine
29 *
30 * $Id: gl2ps.h,v 1.5 2006/06/29 21:23:11 gunter Exp $
31 *
32 * E-mail: geuz@geuz.org
33 * URL: http://www.geuz.org/gl2ps/
34 *
35 * This library is free software; you can redistribute it and/or
36 * modify it under the terms of the GNU Library General Public
37 * License as published by the Free Software Foundation; either
38 * version 2 of the License, or (at your option) any later version.
39 *
40 * This library is distributed in the hope that it will be useful,
41 * but WITHOUT ANY WARRANTY; without even the implied warranty of
42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
43 * Library General Public License for more details.
44 *
45 * You should have received a copy of the GNU Library General Public
46 * License along with this library; if not, write to the Free
47 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
48 *
49 */
50
51#ifndef __GL2PS_H__
52#define __GL2PS_H__
53
54#include <stdio.h>
55#include <stdlib.h>
56#include <cmath>
57
58/* To generate a Windows dll, you have to define GL2PSDLL at compile
59   time */
60
61#ifdef WIN32
62#  include <windows.h>
63#  ifdef GL2PSDLL
64#    ifdef GL2PSDLL_EXPORTS
65#      define GL2PSDLL_API __declspec(dllexport)
66#    else
67#      define GL2PSDLL_API __declspec(dllimport)
68#    endif
69#  else
70#    define GL2PSDLL_API
71#  endif
72#else
73#  define GL2PSDLL_API
74#endif
75
76#ifdef __APPLE__
77#  include <OpenGL/gl.h>
78#else
79#  include <GL/gl.h>
80#endif
81
82
83#define GL2PS_VERSION                    0.8
84#define GL2PS_NONE                       0
85
86/* Output file format */
87
88#define GL2PS_PS                         1
89#define GL2PS_EPS                        2
90#define GL2PS_TEX                        3
91
92/* Sorting algorithms */
93
94#define GL2PS_NO_SORT                    1
95#define GL2PS_SIMPLE_SORT                2
96#define GL2PS_BSP_SORT                   3
97
98/* Options for gl2psBeginPage */
99
100#define GL2PS_DRAW_BACKGROUND            (1<<0)
101#define GL2PS_SIMPLE_LINE_OFFSET         (1<<1)
102#define GL2PS_SILENT                     (1<<2)
103#define GL2PS_BEST_ROOT                  (1<<3)
104#define GL2PS_OCCLUSION_CULL             (1<<4)
105#define GL2PS_NO_TEXT                    (1<<5)
106#define GL2PS_LANDSCAPE                  (1<<6)
107#define GL2PS_NO_PS3_SHADING             (1<<7)
108#define GL2PS_NO_PIXMAP                  (1<<8)
109
110/* Arguments for gl2psEnable/gl2psDisable */
111
112#define GL2PS_POLYGON_OFFSET_FILL        1
113#define GL2PS_POLYGON_BOUNDARY           2
114#define GL2PS_LINE_STIPPLE               3
115
116/* Magic numbers */
117
118#define GL2PS_EPSILON                    5.e-3
119#define GL2PS_DEPTH_FACT                 1000.0
120#define GL2PS_SIMPLE_OFFSET              0.05
121#define GL2PS_SIMPLE_OFFSET_LARGE        1.0
122#define GL2PS_ZERO(arg)                  (std::fabs(arg)<1.e-20)
123/*#define GL2PS_ZERO(arg)                ((arg)==0.0)*/
124
125/* Message levels and error codes */
126
127#define GL2PS_SUCCESS                    0
128#define GL2PS_INFO                       1
129#define GL2PS_WARNING                    2
130#define GL2PS_ERROR                      3
131#define GL2PS_NO_FEEDBACK                4
132#define GL2PS_OVERFLOW                   5
133#define GL2PS_UNINITIALIZED              6
134
135/* Primitive types */
136
137#define GL2PS_TEXT                       1
138#define GL2PS_POINT                      2
139#define GL2PS_LINE                       3
140#define GL2PS_QUADRANGLE                 4
141#define GL2PS_TRIANGLE                   5
142#define GL2PS_PIXMAP                     6
143
144/* BSP tree primitive comparison */
145
146#define GL2PS_COINCIDENT                 1
147#define GL2PS_IN_FRONT_OF                2
148#define GL2PS_IN_BACK_OF                 3
149#define GL2PS_SPANNING                   4
150
151/* 2D BSP tree primitive comparison */
152
153#define GL2PS_POINT_COINCIDENT           0
154#define GL2PS_POINT_INFRONT              1
155#define GL2PS_POINT_BACK                 2
156
157/* Pass through options */
158
159#define GL2PS_BEGIN_POLYGON_OFFSET_FILL  1
160#define GL2PS_END_POLYGON_OFFSET_FILL    2
161#define GL2PS_BEGIN_POLYGON_BOUNDARY     3
162#define GL2PS_END_POLYGON_BOUNDARY       4
163#define GL2PS_BEGIN_LINE_STIPPLE         5
164#define GL2PS_END_LINE_STIPPLE           6
165#define GL2PS_SET_POINT_SIZE             7
166#define GL2PS_SET_LINE_WIDTH             8
167
168typedef GLfloat GL2PSrgba[4];
169typedef GLfloat GL2PSxyz[3];
170typedef GLfloat GL2PSplane[4];
171
172typedef struct _GL2PSbsptree2d GL2PSbsptree2d;
173
174struct _GL2PSbsptree2d {
175  GL2PSplane plane;
176  GL2PSbsptree2d *front, *back;
177};
178
179typedef struct {
180  GLint nmax, size, incr, n;
181  char *array;
182} GL2PSlist;
183
184typedef struct _GL2PSbsptree GL2PSbsptree;
185
186struct _GL2PSbsptree {
187  GL2PSplane plane;
188  GL2PSlist *primitives;
189  GL2PSbsptree *front, *back;
190};
191
192typedef struct {
193  GL2PSxyz xyz;
194  GL2PSrgba rgba;
195} GL2PSvertex;
196
197typedef struct {
198  GLshort fontsize;
199  char *str, *fontname;
200} GL2PSstring;
201
202typedef struct {
203  GLsizei width, height;
204  GLenum format, type;
205  GLfloat *pixels;
206} GL2PSimage;
207
208typedef struct {
209  GLshort type, numverts;
210  char boundary, dash, culled;
211  GLfloat width, depth;
212  GL2PSvertex *verts;
213  GL2PSstring *text;
214  GL2PSimage *image;
215} GL2PSprimitive;
216
217typedef struct {
218  GLint format, sort, options, colorsize, colormode, buffersize, maxbestroot;
219  const char *title, *producer, *filename;
220  GLboolean shade, boundary;
221  GLfloat *feedback, offset[2];
222  GLint viewport[4];
223  GL2PSrgba *colormap, lastrgba, threshold;
224  float lastlinewidth;
225  GL2PSlist *primitives;
226  GL2PSbsptree2d *imagetree;
227  FILE *stream;
228} GL2PScontext;
229
230/* public functions */
231
232#ifdef __cplusplus
233extern "C" {
234#endif
235
236GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer,
237                                  GLint viewport[4], GLint format, GLint sort,
238                                  GLint options, GLint colormode,
239                                  GLint colorsize, GL2PSrgba *colormap,
240                                  GLint nr, GLint ng, GLint nb, GLint buffersize,
241                                  FILE *stream, const char *filename);
242GL2PSDLL_API GLint gl2psEndPage(void);
243GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]);
244GL2PSDLL_API GLint gl2psEndViewport(void);
245GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, GLshort fontsize);
246GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
247                                   GLint xorig, GLint yorig,
248                                   GLenum format, GLenum type, const void *pixels);
249GL2PSDLL_API GLint gl2psEnable(GLint mode);
250GL2PSDLL_API GLint gl2psDisable(GLint mode);
251GL2PSDLL_API GLint gl2psPointSize(GLfloat value);
252GL2PSDLL_API GLint gl2psLineWidth(GLfloat value);
253
254#ifdef __cplusplus
255}
256#endif
257
258#endif /* __GL2PS_H__ */
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