MapQuant: graph/gl2ps.h Source File

00001 /* $Id: gl2ps.h,v 1.1.1.1 2004/07/10 00:15:04 leptos Exp $ */ 00002 /* 00003 * GL2PS, an OpenGL to PostScript Printing Library 00004 * Copyright (C) 1999-2003 Christophe Geuzaine <geuz@geuz.org> 00005 * 00006 * This program is free software; you can redistribute it and/or 00007 * modify it under the terms of either: 00008 * 00009 * a) the GNU Library General Public License as published by the Free 00010 * Software Foundation, either version 2 of the License, or (at your 00011 * option) any later version; or 00012 * 00013 * b) the GL2PS License as published by Christophe Geuzaine, either 00014 * version 2 of the License, or (at your option) any later version. 00015 * 00016 * This program is distributed in the hope that it will be useful, but 00017 * WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See either 00019 * the GNU Library General Public License or the GL2PS License for 00020 * more details. 00021 * 00022 * You should have received a copy of the GNU Library General Public 00023 * License along with this library in the file named "COPYING.LGPL"; 00024 * if not, write to the Free Software Foundation, Inc., 675 Mass Ave, 00025 * Cambridge, MA 02139, USA. 00026 * 00027 * You should have received a copy of the GL2PS License with this 00028 * library in the file named "COPYING.GL2PS"; if not, I will be glad 00029 * to provide one. 00030 * 00031 * For the latest info about gl2ps, see http://www.geuz.org/gl2ps/ 00032 */ 00033 00034 #ifndef __GL2PS_H__ 00035 #define __GL2PS_H__ 00036 00037 #include <stdio.h> 00038 #include <stdlib.h> 00039 #include <math.h> 00040 00041 /* To generate a Windows dll, define GL2PSDLL at compile time */ 00042 00043 #ifdef WIN32 00044 # include <windows.h> 00045 # ifdef GL2PSDLL 00046 # ifdef GL2PSDLL_EXPORTS 00047 # define GL2PSDLL_API __declspec(dllexport) 00048 # else 00049 # define GL2PSDLL_API __declspec(dllimport) 00050 # endif 00051 # else 00052 # define GL2PSDLL_API 00053 # endif 00054 #else 00055 # define GL2PSDLL_API 00056 #endif 00057 00058 #ifdef __APPLE__ 00059 # include <OpenGL/gl.h> 00060 #else 00061 # include <GL/gl.h> 00062 #endif 00063 00064 /* Support for compressed PDF */ 00065 00066 #if defined(HAVE_ZLIB) || defined(HAVE_LIBZ) || defined(GL2PS_HAVE_ZLIB) 00067 # include <zlib.h> 00068 # ifndef GL2PS_HAVE_ZLIB 00069 # define GL2PS_HAVE_ZLIB 00070 # endif 00071 #endif 00072 00073 /* Version number */ 00074 00075 #define GL2PS_MAJOR_VERSION 1 00076 #define GL2PS_MINOR_VERSION 1 00077 #define GL2PS_PATCH_VERSION 0 00078 00079 #define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \ 00080 0.01 * GL2PS_MINOR_VERSION + \ 00081 0.0001 * GL2PS_PATCH_VERSION) 00082 00083 /* Output file format */ 00084 00085 #define GL2PS_PS 1 00086 #define GL2PS_EPS 2 00087 #define GL2PS_TEX 3 00088 #define GL2PS_PDF 4 00089 00090 /* Sorting algorithms */ 00091 00092 #define GL2PS_NO_SORT 1 00093 #define GL2PS_SIMPLE_SORT 2 00094 #define GL2PS_BSP_SORT 3 00095 00096 /* Options for gl2psBeginPage */ 00097 00098 #define GL2PS_NONE 0 00099 #define GL2PS_DRAW_BACKGROUND (1<<0) 00100 #define GL2PS_SIMPLE_LINE_OFFSET (1<<1) 00101 #define GL2PS_SILENT (1<<2) 00102 #define GL2PS_BEST_ROOT (1<<3) 00103 #define GL2PS_OCCLUSION_CULL (1<<4) 00104 #define GL2PS_NO_TEXT (1<<5) 00105 #define GL2PS_LANDSCAPE (1<<6) 00106 #define GL2PS_NO_PS3_SHADING (1<<7) 00107 #define GL2PS_NO_PIXMAP (1<<8) 00108 #define GL2PS_USE_CURRENT_VIEWPORT (1<<9) 00109 #define GL2PS_COMPRESS (1<<10) 00110 00111 /* Arguments for gl2psEnable/gl2psDisable */ 00112 00113 #define GL2PS_POLYGON_OFFSET_FILL 1 00114 #define GL2PS_POLYGON_BOUNDARY 2 00115 #define GL2PS_LINE_STIPPLE 3 00116 00117 /* Magic numbers */ 00118 00119 #define GL2PS_EPSILON 5.0e-3F 00120 #define GL2PS_DEPTH_FACT 1000.0F 00121 #define GL2PS_SIMPLE_OFFSET 0.05F 00122 #define GL2PS_SIMPLE_OFFSET_LARGE 1.0F 00123 #define GL2PS_ZERO(arg) (fabs(arg)<1.e-20) 00124 #define GL2PS_FIXED_XREF_ENTRIES 7 00125 00126 /* Message levels and error codes */ 00127 00128 #define GL2PS_SUCCESS 0 00129 #define GL2PS_INFO 1 00130 #define GL2PS_WARNING 2 00131 #define GL2PS_ERROR 3 00132 #define GL2PS_NO_FEEDBACK 4 00133 #define GL2PS_OVERFLOW 5 00134 #define GL2PS_UNINITIALIZED 6 00135 00136 /* Primitive types */ 00137 00138 #define GL2PS_NOTYPE -1 00139 #define GL2PS_TEXT 1 00140 #define GL2PS_POINT 2 00141 #define GL2PS_LINE 3 00142 #define GL2PS_QUADRANGLE 4 00143 #define GL2PS_TRIANGLE 5 00144 #define GL2PS_PIXMAP 6 00145 00146 /* Text alignment */ 00147 00148 #define GL2PS_TEXT_C 1 00149 #define GL2PS_TEXT_CL 2 00150 #define GL2PS_TEXT_CR 3 00151 #define GL2PS_TEXT_B 4 00152 #define GL2PS_TEXT_BL 5 00153 #define GL2PS_TEXT_BR 6 00154 #define GL2PS_TEXT_T 7 00155 #define GL2PS_TEXT_TL 8 00156 #define GL2PS_TEXT_TR 9 00157 00158 /* BSP tree primitive comparison */ 00159 00160 #define GL2PS_COINCIDENT 1 00161 #define GL2PS_IN_FRONT_OF 2 00162 #define GL2PS_IN_BACK_OF 3 00163 #define GL2PS_SPANNING 4 00164 00165 /* 2D BSP tree primitive comparison */ 00166 00167 #define GL2PS_POINT_COINCIDENT 0 00168 #define GL2PS_POINT_INFRONT 1 00169 #define GL2PS_POINT_BACK 2 00170 00171 /* Pass through options */ 00172 00173 #define GL2PS_BEGIN_POLYGON_OFFSET_FILL 1 00174 #define GL2PS_END_POLYGON_OFFSET_FILL 2 00175 #define GL2PS_BEGIN_POLYGON_BOUNDARY 3 00176 #define GL2PS_END_POLYGON_BOUNDARY 4 00177 #define GL2PS_BEGIN_LINE_STIPPLE 5 00178 #define GL2PS_END_LINE_STIPPLE 6 00179 #define GL2PS_SET_POINT_SIZE 7 00180 #define GL2PS_SET_LINE_WIDTH 8 00181 00182 typedef GLfloat GL2PSrgba[4]; 00183 typedef GLfloat GL2PSxyz[3]; 00184 typedef GLfloat GL2PSplane[4]; 00185 00186 typedef struct _GL2PSbsptree2d GL2PSbsptree2d; 00187 00188 struct _GL2PSbsptree2d { 00189 GL2PSplane plane; 00190 GL2PSbsptree2d *front, *back; 00191 }; 00192 00193 typedef struct { 00194 GLint nmax, size, incr, n; 00195 char *array; 00196 } GL2PSlist; 00197 00198 typedef struct _GL2PSbsptree GL2PSbsptree; 00199 00200 struct _GL2PSbsptree { 00201 GL2PSplane plane; 00202 GL2PSlist *primitives; 00203 GL2PSbsptree *front, *back; 00204 }; 00205 00206 typedef struct { 00207 GL2PSxyz xyz; 00208 GL2PSrgba rgba; 00209 } GL2PSvertex; 00210 00211 typedef GL2PSvertex GL2PStriangle[3]; 00212 00213 typedef struct { 00214 GLshort fontsize; 00215 char *str, *fontname; 00216 GLint alignment; 00217 } GL2PSstring; 00218 00219 typedef struct { 00220 GLsizei width, height; 00221 GLenum format, type; 00222 void* pixels; // ADDED 00223 } GL2PSimage; 00224 00225 typedef struct { 00226 GLshort type, numverts; 00227 char boundary, dash, culled; 00228 GLfloat width, depth; 00229 GL2PSvertex *verts; 00230 GL2PSstring *text; 00231 GL2PSimage *image; 00232 } GL2PSprimitive; 00233 00234 typedef struct { 00235 #ifdef GL2PS_HAVE_ZLIB 00236 Bytef *dest, *src, *start; 00237 uLongf destLen, srcLen; 00238 #else 00239 int dummy; 00240 #endif 00241 } GL2PScompress; 00242 00243 typedef struct { 00244 /* general */ 00245 GLint format, sort, options, colorsize, colormode, buffersize; 00246 const char *title, *producer, *filename; 00247 GLboolean boundary; 00248 GLfloat *feedback, offset[2], lastlinewidth; 00249 GLint viewport[4]; 00250 GL2PSrgba *colormap, lastrgba, threshold; 00251 GL2PSlist *primitives; 00252 FILE *stream; 00253 GL2PScompress *compress; 00254 00255 /* BSP-specific */ 00256 GLint maxbestroot; 00257 00258 /* occlusion culling-specific */ 00259 GLboolean zerosurfacearea; 00260 GL2PSbsptree2d *imagetree; 00261 GL2PSprimitive *primitivetoadd; 00262 00263 /* PDF-specific */ 00264 int cref[GL2PS_FIXED_XREF_ENTRIES]; 00265 int streamlength; 00266 GL2PSlist *tlist, *tidxlist, *ilist, *slist; 00267 int lasttype, consec_cnt, consec_inner_cnt; 00268 int line_width_diff, line_rgb_diff, last_line_finished, last_triangle_finished; 00269 } GL2PScontext; 00270 00271 /* public functions */ 00272 00273 #ifdef __cplusplus 00274 extern "C" { 00275 #endif 00276 00277 GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer, 00278 GLint viewport[4], GLint format, GLint sort, 00279 GLint options, GLint colormode, 00280 GLint colorsize, GL2PSrgba *colormap, 00281 GLint nr, GLint ng, GLint nb, GLint buffersize, 00282 FILE *stream, const char *filename); 00283 GL2PSDLL_API GLint gl2psEndPage(void); 00284 GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]); 00285 GL2PSDLL_API GLint gl2psEndViewport(void); 00286 GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, GLshort fontsize); 00287 GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height, 00288 GLint xorig, GLint yorig, GLfloat xscale, GLfloat yscale, 00289 GLenum format, GLenum type, const void *pixels); 00290 GL2PSDLL_API GLint gl2psEnable(GLint mode); 00291 GL2PSDLL_API GLint gl2psDisable(GLint mode); 00292 GL2PSDLL_API GLint gl2psPointSize(GLfloat value); 00293 GL2PSDLL_API GLint gl2psLineWidth(GLfloat value); 00294 00295 /* Undocumented */ 00296 GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname, GLshort fontsize, 00297 GLint align, GL2PSrgba color); 00298 00299 #ifdef __cplusplus 00300 }; 00301 #endif 00302 00303 #endif /* __GL2PS_H__ */ 00304