gl2ps.h

00001 /*
00002  * GL2PS, an OpenGL to PostScript Printing Library
00003  * Copyright (C) 1999-2006 Christophe Geuzaine <geuz@geuz.org>
00004  *
00005  * This program is free software; you can redistribute it and/or
00006  * modify it under the terms of either:
00007  *
00008  * a) the GNU Library General Public License as published by the Free
00009  * Software Foundation, either version 2 of the License, or (at your
00010  * option) any later version; or
00011  *
00012  * b) the GL2PS License as published by Christophe Geuzaine, either
00013  * version 2 of the License, or (at your option) any later version.
00014  *
00015  * This program is distributed in the hope that it will be useful, but
00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See either
00018  * the GNU Library General Public License or the GL2PS License for
00019  * more details.
00020  *
00021  * You should have received a copy of the GNU Library General Public
00022  * License along with this library in the file named "COPYING.LGPL";
00023  * if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
00024  * Cambridge, MA 02139, USA.
00025  *
00026  * You should have received a copy of the GL2PS License with this
00027  * library in the file named "COPYING.GL2PS"; if not, I will be glad
00028  * to provide one.
00029  *
00030  * For the latest info about gl2ps, see http://www.geuz.org/gl2ps/.
00031  * Please report all bugs and problems to <gl2ps@geuz.org>.
00032  */
00033 
00034 #ifndef __GL2PS_H__
00035 #define __GL2PS_H__
00036 
00037 #include <stdio.h>
00038 #include <stdlib.h>
00039 
00040 /* Define GL2PSDLL at compile time to build a Windows DLL */
00041 
00042 #if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
00043 #  if defined(_MSC_VER)
00044 #    pragma warning(disable:4115)
00045 #  endif
00046 #  include <windows.h>
00047 #  if defined(GL2PSDLL)
00048 #    if defined(GL2PSDLL_EXPORTS)
00049 #      define GL2PSDLL_API __declspec(dllexport)
00050 #    else
00051 #      define GL2PSDLL_API __declspec(dllimport)
00052 #    endif
00053 #  else
00054 #    define GL2PSDLL_API
00055 #  endif
00056 #else
00057 #  define GL2PSDLL_API
00058 #endif
00059 
00060 #if defined(__APPLE__) || defined(HAVE_OPENGL_GL_H)
00061 #  include <OpenGL/gl.h>
00062 #else
00063 #  include <GL/gl.h>
00064 #endif
00065 
00066 /* Support for compressed PostScript/PDF/SVG and for embedded PNG
00067    images in SVG */
00068 
00069 #if defined(HAVE_ZLIB) || defined(HAVE_LIBZ)
00070 #  define GL2PS_HAVE_ZLIB
00071 #  if defined(HAVE_LIBPNG) || defined(HAVE_PNG)
00072 #    define GL2PS_HAVE_LIBPNG
00073 #  endif
00074 #endif
00075 
00076 /* Version number */
00077 
00078 #define GL2PS_MAJOR_VERSION 1
00079 #define GL2PS_MINOR_VERSION 3
00080 #define GL2PS_PATCH_VERSION 2
00081 #define GL2PS_EXTRA_VERSION ""
00082 
00083 #define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \
00084                        0.01 * GL2PS_MINOR_VERSION + \
00085                        0.0001 * GL2PS_PATCH_VERSION)
00086 
00087 #define GL2PS_COPYRIGHT "(C) 1999-2006 Christophe Geuzaine (geuz@geuz.org)"
00088 
00089 /* Output file formats (the values and the ordering are important!) */
00090 
00091 #define GL2PS_PS  0
00092 #define GL2PS_EPS 1
00093 #define GL2PS_TEX 2
00094 #define GL2PS_PDF 3
00095 #define GL2PS_SVG 4
00096 #define GL2PS_PGF 5
00097 
00098 /* Sorting algorithms */
00099 
00100 #define GL2PS_NO_SORT     1
00101 #define GL2PS_SIMPLE_SORT 2
00102 #define GL2PS_BSP_SORT    3
00103 
00104 /* Message levels and error codes */
00105 
00106 #define GL2PS_SUCCESS       0
00107 #define GL2PS_INFO          1
00108 #define GL2PS_WARNING       2
00109 #define GL2PS_ERROR         3
00110 #define GL2PS_NO_FEEDBACK   4
00111 #define GL2PS_OVERFLOW      5
00112 #define GL2PS_UNINITIALIZED 6
00113 
00114 /* Options for gl2psBeginPage */
00115 
00116 #define GL2PS_NONE                 0
00117 #define GL2PS_DRAW_BACKGROUND      (1<<0)
00118 #define GL2PS_SIMPLE_LINE_OFFSET   (1<<1)
00119 #define GL2PS_SILENT               (1<<2)
00120 #define GL2PS_BEST_ROOT            (1<<3)
00121 #define GL2PS_OCCLUSION_CULL       (1<<4)
00122 #define GL2PS_NO_TEXT              (1<<5)
00123 #define GL2PS_LANDSCAPE            (1<<6)
00124 #define GL2PS_NO_PS3_SHADING       (1<<7)
00125 #define GL2PS_NO_PIXMAP            (1<<8)
00126 #define GL2PS_USE_CURRENT_VIEWPORT (1<<9)
00127 #define GL2PS_COMPRESS             (1<<10)
00128 #define GL2PS_NO_BLENDING          (1<<11)
00129 #define GL2PS_TIGHT_BOUNDING_BOX   (1<<12)
00130 
00131 /* Arguments for gl2psEnable/gl2psDisable */
00132 
00133 #define GL2PS_POLYGON_OFFSET_FILL 1
00134 #define GL2PS_POLYGON_BOUNDARY    2
00135 #define GL2PS_LINE_STIPPLE        3
00136 #define GL2PS_BLEND               4
00137 
00138 /* Text alignment (o=raster position; default mode is BL):
00139    +---+ +---+ +---+ +---+ +---+ +---+ +-o-+ o---+ +---o 
00140    | o | o   | |   o |   | |   | |   | |   | |   | |   | 
00141    +---+ +---+ +---+ +-o-+ o---+ +---o +---+ +---+ +---+ 
00142     C     CL    CR    B     BL    BR    T     TL    TR */
00143 
00144 #define GL2PS_TEXT_C  1
00145 #define GL2PS_TEXT_CL 2
00146 #define GL2PS_TEXT_CR 3
00147 #define GL2PS_TEXT_B  4
00148 #define GL2PS_TEXT_BL 5
00149 #define GL2PS_TEXT_BR 6
00150 #define GL2PS_TEXT_T  7
00151 #define GL2PS_TEXT_TL 8
00152 #define GL2PS_TEXT_TR 9
00153 
00154 typedef GLfloat GL2PSrgba[4];
00155 
00156 #if defined(__cplusplus)
00157 extern "C" {
00158 #endif
00159 
00160 GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer, 
00161                                   GLint viewport[4], GLint format, GLint sort,
00162                                   GLint options, GLint colormode,
00163                                   GLint colorsize, GL2PSrgba *colormap, 
00164                                   GLint nr, GLint ng, GLint nb, GLint buffersize,
00165                                   FILE *stream, const char *filename);
00166 GL2PSDLL_API GLint gl2psEndPage(void);
00167 GL2PSDLL_API GLint gl2psSetOptions(GLint options);
00168 GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]);
00169 GL2PSDLL_API GLint gl2psEndViewport(void);
00170 GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, 
00171                              GLshort fontsize);
00172 GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname, 
00173                                 GLshort fontsize, GLint align, GLfloat angle);
00174 GL2PSDLL_API GLint gl2psSpecial(GLint format, const char *str);
00175 GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
00176                                    GLint xorig, GLint yorig,
00177                                    GLenum format, GLenum type, const void *pixels);
00178 GL2PSDLL_API GLint gl2psEnable(GLint mode);
00179 GL2PSDLL_API GLint gl2psDisable(GLint mode);
00180 GL2PSDLL_API GLint gl2psPointSize(GLfloat value);
00181 GL2PSDLL_API GLint gl2psLineWidth(GLfloat value);
00182 GL2PSDLL_API GLint gl2psBlendFunc(GLenum sfactor, GLenum dfactor);
00183 
00184 /* undocumented */
00185 GL2PSDLL_API GLint gl2psDrawImageMap(GLsizei width, GLsizei height,
00186                                      const GLfloat position[3],
00187                                      const unsigned char *imagemap);
00188 GL2PSDLL_API const char *gl2psGetFileExtension(GLint format);
00189 GL2PSDLL_API const char *gl2psGetFormatDescription(GLint format);
00190 
00191 #if defined(__cplusplus)
00192 }
00193 #endif
00194 
00195 #endif /* __GL2PS_H__ */

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