1 /*
2  * GL2PS, an OpenGL to PostScript Printing Library
3  * Copyright (C) 1999-2012 C. Geuzaine
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of either:
7  *
8  * a) the GNU Library General Public License as published by the Free
9  * Software Foundation, either version 2 of the License, or (at your
10  * option) any later version; or
11  *
12  * b) the GL2PS License as published by Christophe Geuzaine, either
13  * version 2 of the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful, but
16  * WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See either
18  * the GNU Library General Public License or the GL2PS License for
19  * more details.
20  *
21  * You should have received a copy of the GNU Library General Public
22  * License along with this library in the file named "COPYING.LGPL";
23  * if not, write to the Free Software Foundation, Inc., 51 Franklin
24  * Street, Fifth Floor, Boston, MA 02110-1301, USA.
25  *
26  * You should have received a copy of the GL2PS License with this
27  * library in the file named "COPYING.GL2PS"; if not, I will be glad
28  * to provide one.
29  *
30  * For the latest info about gl2ps and a full list of contributors,
31  * see http://www.geuz.org/gl2ps/.
32  *
33  * Please report all bugs and problems to <gl2ps@geuz.org>.
34  */
35 
36 #ifndef __GL2PS_H__
37 #define __GL2PS_H__
38 
39 #include <stdio.h>
40 #include <stdlib.h>
41 
42 /* Define GL2PSDLL at compile time to build a Windows DLL */
43 
44 #if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
45 #  if defined(_MSC_VER)
46 #    pragma warning(disable:4115)
47 #    pragma warning(disable:4996)
48 #  endif
49 #  include <windows.h>
50 #  if defined(GL2PSDLL)
51 #    if defined(GL2PSDLL_EXPORTS)
52 #      define GL2PSDLL_API __declspec(dllexport)
53 #    else
54 #      define GL2PSDLL_API __declspec(dllimport)
55 #    endif
56 #  else
57 #    define GL2PSDLL_API
58 #  endif
59 #else
60 #  define GL2PSDLL_API
61 #endif
62 
63 #if defined(__APPLE__) || defined(HAVE_OPENGL_GL_H)
64 #  include <OpenGL/gl.h>
65 #else
66 #  include <GL/gl.h>
67 #endif
68 
69 /* Support for compressed PostScript/PDF/SVG and for embedded PNG
70    images in SVG */
71 
72 #if defined(HAVE_ZLIB) || defined(HAVE_LIBZ)
73 #  define GL2PS_HAVE_ZLIB
74 #  if defined(HAVE_LIBPNG) || defined(HAVE_PNG)
75 #    define GL2PS_HAVE_LIBPNG
76 #  endif
77 #endif
78 
79 #if defined(HAVE_NO_VSNPRINTF)
80 #  define GL2PS_HAVE_NO_VSNPRINTF
81 #endif
82 
83 /* Version number */
84 
85 #define GL2PS_MAJOR_VERSION 1
86 #define GL2PS_MINOR_VERSION 3
87 #define GL2PS_PATCH_VERSION 8
88 #define GL2PS_EXTRA_VERSION ""
89 
90 #define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \
91                        0.01 * GL2PS_MINOR_VERSION + \
92                        0.0001 * GL2PS_PATCH_VERSION)
93 
94 #define GL2PS_COPYRIGHT "(C) 1999-2012 C. Geuzaine"
95 
96 /* Output file formats (the values and the ordering are important!) */
97 
98 #define GL2PS_PS  0
99 #define GL2PS_EPS 1
100 #define GL2PS_TEX 2
101 #define GL2PS_PDF 3
102 #define GL2PS_SVG 4
103 #define GL2PS_PGF 5
104 
105 /* Sorting algorithms */
106 
107 #define GL2PS_NO_SORT     1
108 #define GL2PS_SIMPLE_SORT 2
109 #define GL2PS_BSP_SORT    3
110 
111 /* Message levels and error codes */
112 
113 #define GL2PS_SUCCESS       0
114 #define GL2PS_INFO          1
115 #define GL2PS_WARNING       2
116 #define GL2PS_ERROR         3
117 #define GL2PS_NO_FEEDBACK   4
118 #define GL2PS_OVERFLOW      5
119 #define GL2PS_UNINITIALIZED 6
120 
121 /* Options for gl2psBeginPage */
122 
123 #define GL2PS_NONE                 0
124 #define GL2PS_DRAW_BACKGROUND      (1<<0)
125 #define GL2PS_SIMPLE_LINE_OFFSET   (1<<1)
126 #define GL2PS_SILENT               (1<<2)
127 #define GL2PS_BEST_ROOT            (1<<3)
128 #define GL2PS_OCCLUSION_CULL       (1<<4)
129 #define GL2PS_NO_TEXT              (1<<5)
130 #define GL2PS_LANDSCAPE            (1<<6)
131 #define GL2PS_NO_PS3_SHADING       (1<<7)
132 #define GL2PS_NO_PIXMAP            (1<<8)
133 #define GL2PS_USE_CURRENT_VIEWPORT (1<<9)
134 #define GL2PS_COMPRESS             (1<<10)
135 #define GL2PS_NO_BLENDING          (1<<11)
136 #define GL2PS_TIGHT_BOUNDING_BOX   (1<<12)
137 
138 /* Arguments for gl2psEnable/gl2psDisable */
139 
140 #define GL2PS_POLYGON_OFFSET_FILL 1
141 #define GL2PS_POLYGON_BOUNDARY    2
142 #define GL2PS_LINE_STIPPLE        3
143 #define GL2PS_BLEND               4
144 
145 /* Text alignment (o=raster position; default mode is BL):
146    +---+ +---+ +---+ +---+ +---+ +---+ +-o-+ o---+ +---o
147    | o | o   | |   o |   | |   | |   | |   | |   | |   |
148    +---+ +---+ +---+ +-o-+ o---+ +---o +---+ +---+ +---+
149     C     CL    CR    B     BL    BR    T     TL    TR */
150 
151 #define GL2PS_TEXT_C  1
152 #define GL2PS_TEXT_CL 2
153 #define GL2PS_TEXT_CR 3
154 #define GL2PS_TEXT_B  4
155 #define GL2PS_TEXT_BL 5
156 #define GL2PS_TEXT_BR 6
157 #define GL2PS_TEXT_T  7
158 #define GL2PS_TEXT_TL 8
159 #define GL2PS_TEXT_TR 9
160 
161 typedef GLfloat GL2PSrgba[4];
162 
163 #if defined(__cplusplus)
164 extern "C" {
165 #endif
166 
167 GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer,
168                                   GLint viewport[4], GLint format, GLint sort,
169                                   GLint options, GLint colormode,
170                                   GLint colorsize, GL2PSrgba *colormap,
171                                   GLint nr, GLint ng, GLint nb, GLint buffersize,
172                                   FILE *stream, const char *filename);
173 GL2PSDLL_API GLint gl2psEndPage(void);
174 GL2PSDLL_API GLint gl2psSetOptions(GLint options);
175 GL2PSDLL_API GLint gl2psGetOptions(GLint *options);
176 GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]);
177 GL2PSDLL_API GLint gl2psEndViewport(void);
178 GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname,
179                              GLshort fontsize);
180 GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname,
181                                 GLshort fontsize, GLint align, GLfloat angle);
182 GL2PSDLL_API GLint gl2psTextOptColor(const char *str, const char *fontname,
183                                      GLshort fontsize, GLint align, GLfloat angle,
184                                      GL2PSrgba color);
185 GL2PSDLL_API GLint gl2psSpecial(GLint format, const char *str);
186 GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
187                                    GLint xorig, GLint yorig,
188                                    GLenum format, GLenum type, const void *pixels);
189 GL2PSDLL_API GLint gl2psEnable(GLint mode);
190 GL2PSDLL_API GLint gl2psDisable(GLint mode);
191 GL2PSDLL_API GLint gl2psPointSize(GLfloat value);
192 GL2PSDLL_API GLint gl2psLineWidth(GLfloat value);
193 GL2PSDLL_API GLint gl2psBlendFunc(GLenum sfactor, GLenum dfactor);
194 
195 /* undocumented */
196 GL2PSDLL_API GLint gl2psDrawImageMap(GLsizei width, GLsizei height,
197                                      const GLfloat position[3],
198                                      const unsigned char *imagemap);
199 GL2PSDLL_API const char *gl2psGetFileExtension(GLint format);
200 GL2PSDLL_API const char *gl2psGetFormatDescription(GLint format);
201 GL2PSDLL_API GLint gl2psGetFileFormat();
202 
203 #if defined(__cplusplus)
204 }
205 #endif
206 
207 #endif /* __GL2PS_H__ */
208