gl2ps.h   gl2ps.h 
/* $Id: gl2ps.h,v 1.77 2003/11/15 08:35:30 geuzaine Exp $ */ /* $Id: gl2ps.h,v 1.87 2004/05/09 18:06:01 geuzaine Exp $ */
/* /*
* GL2PS, an OpenGL to PostScript Printing Library * GL2PS, an OpenGL to PostScript Printing Library
* Copyright (C) 1999-2003 Christophe Geuzaine <geuz@geuz.org> * Copyright (C) 1999-2004 Christophe Geuzaine <geuz@geuz.org>
* *
* This program is free software; you can redistribute it and/or * This program is free software; you can redistribute it and/or
* modify it under the terms of either: * modify it under the terms of either:
* *
* a) the GNU Library General Public License as published by the Free * a) the GNU Library General Public License as published by the Free
* Software Foundation, either version 2 of the License, or (at your * Software Foundation, either version 2 of the License, or (at your
* option) any later version; or * option) any later version; or
* *
* b) the GL2PS License as published by Christophe Geuzaine, either * b) the GL2PS License as published by Christophe Geuzaine, 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.
skipping to change at line 42 skipping to change at line 42
* Please report all bugs and problems to <gl2ps@geuz.org>. * Please report all bugs and problems to <gl2ps@geuz.org>.
*/ */
#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, you should define GL2PSDLL at compile
time */
#ifdef WIN32 #if defined (WIN32) || defined(_WIN32)
/* Shut up warning due to bad windows header file */
# if defined(_MSC_VER)
# pragma warning(disable:4115)
# endif
# include <windows.h> # include <windows.h>
# ifdef GL2PSDLL # if defined(GL2PSDLL)
# ifdef GL2PSDLL_EXPORTS # if defined(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
# define GL2PSDLL_API # define GL2PSDLL_API
# endif # endif
#else #else
# define GL2PSDLL_API # define GL2PSDLL_API
#endif #endif
#ifdef __APPLE__ #if defined(__APPLE__)
# include <OpenGL/gl.h> # include <OpenGL/gl.h>
#else #else
# include <GL/gl.h> # include <GL/gl.h>
#endif #endif
/* Support for compressed PDF */ /* Support for compressed PostScript/PDF */
#if defined(HAVE_ZLIB) || defined(HAVE_LIBZ) || defined(GL2PS_HAVE_ZLIB) #if defined(HAVE_ZLIB) || defined(HAVE_LIBZ) || defined(GL2PS_HAVE_ZLIB)
# include <zlib.h> # include <zlib.h>
# ifndef GL2PS_HAVE_ZLIB # if !defined(GL2PS_HAVE_ZLIB)
# define GL2PS_HAVE_ZLIB # define GL2PS_HAVE_ZLIB
# endif # endif
#endif #endif
/* Version number */ /* Version number */
#define GL2PS_MAJOR_VERSION 1 #define GL2PS_MAJOR_VERSION 1
#define GL2PS_MINOR_VERSION 1 #define GL2PS_MINOR_VERSION 2
#define GL2PS_PATCH_VERSION 2 #define GL2PS_PATCH_VERSION 0
#define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \ #define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \
0.01 * GL2PS_MINOR_VERSION + \ 0.01 * GL2PS_MINOR_VERSION + \
0.0001 * GL2PS_PATCH_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 #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
/* Message levels and error codes */
#define GL2PS_SUCCESS 0
#define GL2PS_INFO 1
#define GL2PS_WARNING 2
#define GL2PS_ERROR 3
#define GL2PS_NO_FEEDBACK 4
#define GL2PS_OVERFLOW 5
#define GL2PS_UNINITIALIZED 6
/* Options for gl2psBeginPage */ /* Options for gl2psBeginPage */
#define GL2PS_NONE 0 #define GL2PS_NONE 0
#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) #define GL2PS_NO_PIXMAP (1<<8)
#define GL2PS_USE_CURRENT_VIEWPORT (1<<9) #define GL2PS_USE_CURRENT_VIEWPORT (1<<9)
#define GL2PS_COMPRESS (1<<10) #define GL2PS_COMPRESS (1<<10)
#define GL2PS_NO_BLENDING (1<<11)
/* 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
#define GL2PS_BLEND 4
/* Magic numbers */
#define GL2PS_EPSILON 5.0e-3F
#define GL2PS_DEPTH_FACT 1000.0F
#define GL2PS_SIMPLE_OFFSET 0.05F
#define GL2PS_SIMPLE_OFFSET_LARGE 1.0F
#define GL2PS_ZERO(arg) (fabs(arg)<1.e-20)
#define GL2PS_FIXED_XREF_ENTRIES 7
/* Message levels and error codes */
#define GL2PS_SUCCESS 0
#define GL2PS_INFO 1
#define GL2PS_WARNING 2
#define GL2PS_ERROR 3
#define GL2PS_NO_FEEDBACK 4
#define GL2PS_OVERFLOW 5
#define GL2PS_UNINITIALIZED 6
/* Primitive types */
#define GL2PS_NOTYPE -1
#define GL2PS_TEXT 1
#define GL2PS_POINT 2
#define GL2PS_LINE 3
#define GL2PS_QUADRANGLE 4
#define GL2PS_TRIANGLE 5
#define GL2PS_PIXMAP 6
/* Text alignment */ /* Text alignment */
#define GL2PS_TEXT_C 1 #define GL2PS_TEXT_C 1
#define GL2PS_TEXT_CL 2 #define GL2PS_TEXT_CL 2
#define GL2PS_TEXT_CR 3 #define GL2PS_TEXT_CR 3
#define GL2PS_TEXT_B 4 #define GL2PS_TEXT_B 4
#define GL2PS_TEXT_BL 5 #define GL2PS_TEXT_BL 5
#define GL2PS_TEXT_BR 6 #define GL2PS_TEXT_BR 6
#define GL2PS_TEXT_T 7 #define GL2PS_TEXT_T 7
#define GL2PS_TEXT_TL 8 #define GL2PS_TEXT_TL 8
#define GL2PS_TEXT_TR 9 #define GL2PS_TEXT_TR 9
/* BSP tree primitive comparison */
#define GL2PS_COINCIDENT 1
#define GL2PS_IN_FRONT_OF 2
#define GL2PS_IN_BACK_OF 3
#define GL2PS_SPANNING 4
/* 2D BSP tree primitive comparison */
#define GL2PS_POINT_COINCIDENT 0
#define GL2PS_POINT_INFRONT 1
#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
#define GL2PS_BEGIN_BLEND 9
#define GL2PS_END_BLEND 10
#define GL2PS_SRC_BLEND 11
#define GL2PS_DST_BLEND 12
typedef GLfloat GL2PSrgba[4]; typedef GLfloat GL2PSrgba[4];
typedef GLfloat GL2PSxyz[3];
typedef GLfloat GL2PSplane[4];
typedef struct _GL2PSbsptree2d GL2PSbsptree2d;
struct _GL2PSbsptree2d {
GL2PSplane plane;
GL2PSbsptree2d *front, *back;
};
typedef struct {
GLint nmax, size, incr, n;
char *array;
} GL2PSlist;
typedef struct _GL2PSbsptree GL2PSbsptree;
struct _GL2PSbsptree {
GL2PSplane plane;
GL2PSlist *primitives;
GL2PSbsptree *front, *back;
};
typedef struct {
GL2PSxyz xyz;
GL2PSrgba rgba;
} GL2PSvertex;
typedef GL2PSvertex GL2PStriangle[3];
typedef struct {
GLshort fontsize;
char *str, *fontname;
GLint alignment;
} GL2PSstring;
typedef struct {
GLsizei width, height;
GLenum format, type;
GLfloat *pixels;
} GL2PSimage;
typedef struct {
GLshort type, numverts;
char boundary, dash, culled;
GLfloat width, depth;
GL2PSvertex *verts;
union {
GL2PSstring *text;
GL2PSimage *image;
} data;
} GL2PSprimitive;
typedef struct {
#ifdef GL2PS_HAVE_ZLIB
Bytef *dest, *src, *start;
uLongf destLen, srcLen;
#else
int dummy;
#endif
} GL2PScompress;
typedef struct {
/* general */
GLint format, sort, options, colorsize, colormode, buffersize;
const char *title, *producer, *filename;
GLboolean boundary;
GLfloat *feedback, offset[2], lastlinewidth;
GLint viewport[4];
GL2PSrgba *colormap, lastrgba, threshold;
GL2PSlist *primitives;
FILE *stream;
GL2PScompress *compress;
/* 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;
/* private prototypes */
GLint gl2psPrintPrimitives(void);
/* public functions */
#ifdef __cplusplus #if defined(__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 so rt, GLint viewport[4], GLint format, GLint so rt,
GLint options, GLint colormode, GLint options, GLint colormode,
GLint colorsize, GL2PSrgba *colormap, GLint colorsize, GL2PSrgba *colormap,
GLint nr, GLint ng, GLint nb, GLint buffe rsize, GLint nr, GLint ng, GLint nb, GLint buffe rsize,
FILE *stream, const char *filename); FILE *stream, const char *filename);
GL2PSDLL_API GLint gl2psEndPage(void); GL2PSDLL_API GLint gl2psEndPage(void);
GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]); GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]);
GL2PSDLL_API GLint gl2psEndViewport(void); GL2PSDLL_API GLint gl2psEndViewport(void);
GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname, GLshort GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname,
fontsize); 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 * pixels); GLenum format, GLenum type, const void * pixels);
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);
GL2PSDLL_API GLint gl2psBlendFunc(GLenum sfactor, GLenum dfactor);
/* Undocumented */ /* Undocumented */
GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname, GLsh GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname,
ort fontsize, GLshort fontsize, GLint align, GL2PSrgba co
GLint align, GL2PSrgba color); lor);
#ifdef __cplusplus #if defined(__cplusplus)
}; };
#endif #endif
#endif /* __GL2PS_H__ */ #endif /* __GL2PS_H__ */
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