gl2ps.h   gl2ps.h 
/* $Id: gl2ps.h,v 1.61 2003/09/22 17:06:38 geuzaine Exp $ */
/* /*
* GL2PS, an OpenGL to PostScript Printing Library * GL2PS, an OpenGL to PostScript Printing Library
* Copyright (C) 1999-2003 Christophe Geuzaine * Copyright (C) 1999-2003 Christophe Geuzaine <geuz@geuz.org>
*
* $Id: gl2ps.h,v 1.48 2003/03/22 16:15:42 geuzaine Exp $
*
* E-mail: geuz@geuz.org
* URL: http://www.geuz.org/gl2ps/
* *
* This library is free software; you can redistribute it and/or * This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public * modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either * License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version. * version 2 of the License, or (at your option) any later version.
* *
* This library is distributed in the hope that it will be useful, * This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of * but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details. * Library General Public License for more details.
* *
* You should have received a copy of the GNU Library General Public * You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free * License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* *
* For the latest info about gl2ps, see http://www.geuz.org/gl2ps/
*/ */
#ifndef __GL2PS_H__ #ifndef __GL2PS_H__
#define __GL2PS_H__ #define __GL2PS_H__
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <math.h> #include <math.h>
/* To generate a Windows dll, define GL2PSDLL at compile time */ /* To generate a Windows dll, define GL2PSDLL at compile time */
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#else #else
# define GL2PSDLL_API # define GL2PSDLL_API
#endif #endif
#ifdef __APPLE__ #ifdef __APPLE__
# include <OpenGL/gl.h> # include <OpenGL/gl.h>
#else #else
# include <GL/gl.h> # include <GL/gl.h>
#endif #endif
#define GL2PS_VERSION 0.81 /* Version number */
#define GL2PS_NONE 0
#define GL2PS_MAJOR_VERSION 1
#define GL2PS_MINOR_VERSION 0
#define GL2PS_PATCH_VERSION 0
#define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \
0.01 * GL2PS_MINOR_VERSION + \
0.0001 * GL2PS_PATCH_VERSION)
/* Output file format */ /* Output file format */
#define GL2PS_PS 1 #define GL2PS_PS 1
#define GL2PS_EPS 2 #define GL2PS_EPS 2
#define GL2PS_TEX 3 #define GL2PS_TEX 3
#define GL2PS_PDF 4
/* Sorting algorithms */ /* Sorting algorithms */
#define GL2PS_NO_SORT 1 #define GL2PS_NO_SORT 1
#define GL2PS_SIMPLE_SORT 2 #define GL2PS_SIMPLE_SORT 2
#define GL2PS_BSP_SORT 3 #define GL2PS_BSP_SORT 3
/* Options for gl2psBeginPage */ /* Options for gl2psBeginPage */
#define GL2PS_DRAW_BACKGROUND (1<<0) #define GL2PS_NONE 0
#define GL2PS_SIMPLE_LINE_OFFSET (1<<1) #define GL2PS_DRAW_BACKGROUND (1<<0)
#define GL2PS_SILENT (1<<2) #define GL2PS_SIMPLE_LINE_OFFSET (1<<1)
#define GL2PS_BEST_ROOT (1<<3) #define GL2PS_SILENT (1<<2)
#define GL2PS_OCCLUSION_CULL (1<<4) #define GL2PS_BEST_ROOT (1<<3)
#define GL2PS_NO_TEXT (1<<5) #define GL2PS_OCCLUSION_CULL (1<<4)
#define GL2PS_LANDSCAPE (1<<6) #define GL2PS_NO_TEXT (1<<5)
#define GL2PS_NO_PS3_SHADING (1<<7) #define GL2PS_LANDSCAPE (1<<6)
#define GL2PS_NO_PIXMAP (1<<8) #define GL2PS_NO_PS3_SHADING (1<<7)
#define GL2PS_NO_PIXMAP (1<<8)
#define GL2PS_USE_CURRENT_VIEWPORT (1<<9)
#define GL2PS_DEFLATE (1<<10)
/* Arguments for gl2psEnable/gl2psDisable */ /* Arguments for gl2psEnable/gl2psDisable */
#define GL2PS_POLYGON_OFFSET_FILL 1 #define GL2PS_POLYGON_OFFSET_FILL 1
#define GL2PS_POLYGON_BOUNDARY 2 #define GL2PS_POLYGON_BOUNDARY 2
#define GL2PS_LINE_STIPPLE 3 #define GL2PS_LINE_STIPPLE 3
/* Magic numbers */ /* Magic numbers */
#define GL2PS_EPSILON 5.e-3 #define GL2PS_EPSILON 5.e-3
#define GL2PS_DEPTH_FACT 1000.0 #define GL2PS_DEPTH_FACT 1000.0
#define GL2PS_SIMPLE_OFFSET 0.05 #define GL2PS_SIMPLE_OFFSET 0.05
#define GL2PS_SIMPLE_OFFSET_LARGE 1.0 #define GL2PS_SIMPLE_OFFSET_LARGE 1.0
#define GL2PS_ZERO(arg) (fabs(arg)<1.e-20) #define GL2PS_ZERO(arg) (fabs(arg)<1.e-20)
#define GL2PS_FIXED_XREF_ENTRIES 7
/* Message levels and error codes */ /* Message levels and error codes */
#define GL2PS_SUCCESS 0 #define GL2PS_SUCCESS 0
#define GL2PS_INFO 1 #define GL2PS_INFO 1
#define GL2PS_WARNING 2 #define GL2PS_WARNING 2
#define GL2PS_ERROR 3 #define GL2PS_ERROR 3
#define GL2PS_NO_FEEDBACK 4 #define GL2PS_NO_FEEDBACK 4
#define GL2PS_OVERFLOW 5 #define GL2PS_OVERFLOW 5
#define GL2PS_UNINITIALIZED 6 #define GL2PS_UNINITIALIZED 6
/* Primitive types */ /* Primitive types */
#define GL2PS_TEXT 1 #define GL2PS_NOTYPE -1
#define GL2PS_POINT 2 #define GL2PS_TEXT 1
#define GL2PS_LINE 3 #define GL2PS_POINT 2
#define GL2PS_QUADRANGLE 4 #define GL2PS_LINE 3
#define GL2PS_TRIANGLE 5 #define GL2PS_QUADRANGLE 4
#define GL2PS_PIXMAP 6 #define GL2PS_TRIANGLE 5
#define GL2PS_PIXMAP 6
/* Text alignment */
#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
/* BSP tree primitive comparison */ /* BSP tree primitive comparison */
#define GL2PS_COINCIDENT 1 #define GL2PS_COINCIDENT 1
#define GL2PS_IN_FRONT_OF 2 #define GL2PS_IN_FRONT_OF 2
#define GL2PS_IN_BACK_OF 3 #define GL2PS_IN_BACK_OF 3
#define GL2PS_SPANNING 4 #define GL2PS_SPANNING 4
/* 2D BSP tree primitive comparison */ /* 2D BSP tree primitive comparison */
#define GL2PS_POINT_COINCIDENT 0 #define GL2PS_POINT_COINCIDENT 0
#define GL2PS_POINT_INFRONT 1 #define GL2PS_POINT_INFRONT 1
#define GL2PS_POINT_BACK 2 #define GL2PS_POINT_BACK 2
/* Pass through options */ /* Pass through options */
#define GL2PS_BEGIN_POLYGON_OFFSET_FILL 1 #define GL2PS_BEGIN_POLYGON_OFFSET_FILL 1
#define GL2PS_END_POLYGON_OFFSET_FILL 2 #define GL2PS_END_POLYGON_OFFSET_FILL 2
#define GL2PS_BEGIN_POLYGON_BOUNDARY 3 #define GL2PS_BEGIN_POLYGON_BOUNDARY 3
#define GL2PS_END_POLYGON_BOUNDARY 4 #define GL2PS_END_POLYGON_BOUNDARY 4
#define GL2PS_BEGIN_LINE_STIPPLE 5 #define GL2PS_BEGIN_LINE_STIPPLE 5
#define GL2PS_END_LINE_STIPPLE 6 #define GL2PS_END_LINE_STIPPLE 6
#define GL2PS_SET_POINT_SIZE 7 #define GL2PS_SET_POINT_SIZE 7
#define GL2PS_SET_LINE_WIDTH 8 #define GL2PS_SET_LINE_WIDTH 8
typedef GLfloat GL2PSrgba[4]; typedef GLfloat GL2PSrgba[4];
typedef GLfloat GL2PSxyz[3]; typedef GLfloat GL2PSxyz[3];
typedef GLfloat GL2PSplane[4]; typedef GLfloat GL2PSplane[4];
typedef struct _GL2PSbsptree2d GL2PSbsptree2d; typedef struct _GL2PSbsptree2d GL2PSbsptree2d;
struct _GL2PSbsptree2d { struct _GL2PSbsptree2d {
GL2PSplane plane; GL2PSplane plane;
GL2PSbsptree2d *front, *back; GL2PSbsptree2d *front, *back;
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GL2PSplane plane; GL2PSplane plane;
GL2PSlist *primitives; GL2PSlist *primitives;
GL2PSbsptree *front, *back; GL2PSbsptree *front, *back;
}; };
typedef struct { typedef struct {
GL2PSxyz xyz; GL2PSxyz xyz;
GL2PSrgba rgba; GL2PSrgba rgba;
} GL2PSvertex; } GL2PSvertex;
typedef GL2PSvertex GL2PStriangle[3];
typedef struct { typedef struct {
GLshort fontsize; GLshort fontsize;
char *str, *fontname; char *str, *fontname;
GLint alignment;
} GL2PSstring; } GL2PSstring;
typedef struct { typedef struct {
GLsizei width, height; GLsizei width, height;
GLenum format, type; GLenum format, type;
GLfloat *pixels; GLfloat *pixels;
} GL2PSimage; } GL2PSimage;
typedef struct { typedef struct {
GLshort type, numverts; GLshort type, numverts;
char boundary, dash, culled; char boundary, dash, culled;
GLfloat width, depth; GLfloat width, depth;
GL2PSvertex *verts; GL2PSvertex *verts;
GL2PSstring *text; GL2PSstring *text;
GL2PSimage *image; GL2PSimage *image;
} GL2PSprimitive; } GL2PSprimitive;
typedef struct { typedef struct {
GLint format, sort, options, colorsize, colormode, buffersize, maxbestroo /* general */
t; GLint format, sort, options, colorsize, colormode, buffersize;
const char *title, *producer, *filename; const char *title, *producer, *filename;
GLboolean shade, boundary; GLboolean boundary;
GLfloat *feedback, offset[2]; GLfloat *feedback, offset[2];
GLint viewport[4]; GLint viewport[4];
GL2PSrgba *colormap, lastrgba, threshold; GL2PSrgba *colormap, lastrgba, threshold;
float lastlinewidth; float lastlinewidth;
GL2PSlist *primitives; GL2PSlist *primitives;
GL2PSbsptree2d *imagetree;
FILE *stream; FILE *stream;
/* BSP-specific */
GLint maxbestroot;
/* occlusion culling-specific */
GLboolean zerosurfacearea;
GL2PSbsptree2d *imagetree;
GL2PSprimitive *primitivetoadd;
/* PDF-specific */
int cref[GL2PS_FIXED_XREF_ENTRIES];
int streamlength;
GL2PSlist *tlist, *tidxlist, *ilist, *slist;
int lasttype, consec_cnt, consec_inner_cnt;
int line_width_diff, line_rgb_diff, last_line_finished, last_triangle_fin
ished;
} GL2PScontext; } GL2PScontext;
/* public functions */ /* public functions */
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer, GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer,
GLint viewport[4], GLint format, GLint sor t, GLint viewport[4], GLint format, GLint sor t,
skipping to change at line 226 skipping to change at line 266
GL2PSDLL_API GLint gl2psEndViewport(void); GL2PSDLL_API GLint gl2psEndViewport(void);
GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, GLshort fontsize); GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, GLshort fontsize);
GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height, GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
GLint xorig, GLint yorig, GLint xorig, GLint yorig,
GLenum format, GLenum type, const void *p ixels); GLenum format, GLenum type, const void *p ixels);
GL2PSDLL_API GLint gl2psEnable(GLint mode); GL2PSDLL_API GLint gl2psEnable(GLint mode);
GL2PSDLL_API GLint gl2psDisable(GLint mode); GL2PSDLL_API GLint gl2psDisable(GLint mode);
GL2PSDLL_API GLint gl2psPointSize(GLfloat value); GL2PSDLL_API GLint gl2psPointSize(GLfloat value);
GL2PSDLL_API GLint gl2psLineWidth(GLfloat value); GL2PSDLL_API GLint gl2psLineWidth(GLfloat value);
/* Undocumented */
GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname, GLsh
ort fontsize,
GLint align, GL2PSrgba color);
#ifdef __cplusplus #ifdef __cplusplus
}; };
#endif #endif
#endif /* __GL2PS_H__ */ #endif /* __GL2PS_H__ */
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