gl2ps.h   gl2ps.h 
/* /*
* 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
* *
* $Id: gl2ps.h,v 1.39 2003/01/30 18:13:18 geuzaine Exp $ * $Id: gl2ps.h,v 1.48 2003/03/22 16:15:42 geuzaine Exp $
* *
* E-mail: geuz@geuz.org * E-mail: geuz@geuz.org
* URL: http://www.geuz.org/gl2ps/ * 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,
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* *
*/ */
#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, you have to define GL2PSDLL at compile /* To generate a Windows dll, define GL2PSDLL at compile time */
time */
#ifdef WIN32 #ifdef WIN32
# include <windows.h> # include <windows.h>
# ifdef GL2PSDLL # ifdef GL2PSDLL
# ifdef GL2PSDLL_EXPORTS # ifdef GL2PSDLL_EXPORTS
# define GL2PSDLL_API __declspec(dllexport) # define GL2PSDLL_API __declspec(dllexport)
# else # else
# define GL2PSDLL_API __declspec(dllimport) # define GL2PSDLL_API __declspec(dllimport)
# endif # endif
# else # else
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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 0.73 #define GL2PS_VERSION 0.81
#define GL2PS_NONE 0 #define GL2PS_NONE 0
/* 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
/* Sorting algorithms */ /* Sorting algorithms */
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/* Options for gl2psBeginPage */ /* Options for gl2psBeginPage */
#define GL2PS_DRAW_BACKGROUND (1<<0) #define GL2PS_DRAW_BACKGROUND (1<<0)
#define GL2PS_SIMPLE_LINE_OFFSET (1<<1) #define GL2PS_SIMPLE_LINE_OFFSET (1<<1)
#define GL2PS_SILENT (1<<2) #define GL2PS_SILENT (1<<2)
#define GL2PS_BEST_ROOT (1<<3) #define GL2PS_BEST_ROOT (1<<3)
#define GL2PS_OCCLUSION_CULL (1<<4) #define GL2PS_OCCLUSION_CULL (1<<4)
#define GL2PS_NO_TEXT (1<<5) #define GL2PS_NO_TEXT (1<<5)
#define GL2PS_LANDSCAPE (1<<6) #define GL2PS_LANDSCAPE (1<<6)
#define GL2PS_NO_PS3_SHADING (1<<7) #define GL2PS_NO_PS3_SHADING (1<<7)
#define GL2PS_NO_PIXMAP (1<<8)
/* 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_ZERO(arg) ((arg)==0.0)*/
/* Message levels */ /* Message levels and error codes */
#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
/* Error codes */ #define GL2PS_OVERFLOW 5
#define GL2PS_UNINITIALIZED 6
#define GL2PS_SUCCESS 0
#define GL2PS_NO_FEEDBACK -1
#define GL2PS_OVERFLOW -2
/* Primitive types */ /* Primitive types */
#define GL2PS_TEXT 1 #define GL2PS_TEXT 1
#define GL2PS_POINT 2 #define GL2PS_POINT 2
#define GL2PS_LINE 3 #define GL2PS_LINE 3
#define GL2PS_QUADRANGLE 4 #define GL2PS_QUADRANGLE 4
#define GL2PS_TRIANGLE 5 #define GL2PS_TRIANGLE 5
#define GL2PS_PIXMAP 6
/* 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 */
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GL2PSxyz xyz; GL2PSxyz xyz;
GL2PSrgba rgba; GL2PSrgba rgba;
} GL2PSvertex; } GL2PSvertex;
typedef struct { typedef struct {
GLshort fontsize; GLshort fontsize;
char *str, *fontname; char *str, *fontname;
} GL2PSstring; } GL2PSstring;
typedef struct { typedef struct {
GLsizei width, height;
GLenum format, type;
GLfloat *pixels;
} GL2PSimage;
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;
} GL2PSprimitive; } GL2PSprimitive;
typedef struct { typedef struct {
GLint format, sort, options, colorsize, colormode, buffersize, maxbestroo t; GLint format, sort, options, colorsize, colormode, buffersize, maxbestroo t;
const char *title, *producer, *filename; const char *title, *producer, *filename;
GLboolean shade, boundary; GLboolean shade, boundary;
GLfloat *feedback, offset[2]; GLfloat *feedback, offset[2];
GLint viewport[4];
GL2PSrgba *colormap, lastrgba, threshold; GL2PSrgba *colormap, lastrgba, threshold;
float lastlinewidth; float lastlinewidth;
GL2PSlist *primitives; GL2PSlist *primitives;
GL2PSbsptree2d *image; GL2PSbsptree2d *imagetree;
FILE *stream; FILE *stream;
} GL2PScontext; } GL2PScontext;
/* public functions */ /* public functions */
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
GL2PSDLL_API void gl2psBeginPage(const char *title, const char *producer, GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer,
GLint format, GLint sort, GLint options, GLint viewport[4], GLint format, GLint sor
GLint colormode, GLint colorsize, t,
GL2PSrgba *colormap, GLint buffersize, GLint options, GLint colormode,
GLint colorsize, GL2PSrgba *colormap,
GLint nr, GLint ng, GLint nb, GLint buffer
size,
FILE *stream, const char *filename); FILE *stream, const char *filename);
GL2PSDLL_API GLint gl2psEndPage(void); GL2PSDLL_API GLint gl2psEndPage(void);
GL2PSDLL_API void gl2psText(const char *str, const char *fontname, GLshort GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]);
fontsize); GL2PSDLL_API GLint gl2psEndViewport(void);
GL2PSDLL_API void gl2psEnable(GLint mode); GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, GLshort
GL2PSDLL_API void gl2psDisable(GLint mode); fontsize);
GL2PSDLL_API void gl2psPointSize(GLfloat value); GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
GL2PSDLL_API void gl2psLineWidth(GLfloat value); GLint xorig, GLint yorig,
GL2PSDLL_API void gl2psNumShadeColors(GLint nr, GLint ng, GLint nb); GLenum format, GLenum type, const void *p
ixels);
GL2PSDLL_API GLint gl2psEnable(GLint mode);
GL2PSDLL_API GLint gl2psDisable(GLint mode);
GL2PSDLL_API GLint gl2psPointSize(GLfloat value);
GL2PSDLL_API GLint gl2psLineWidth(GLfloat value);
#ifdef __cplusplus #ifdef __cplusplus
}; };
#endif #endif
#endif /* __GL2PS_H__ */ #endif /* __GL2PS_H__ */
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