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gl2ps.h 8.72 KiB
/*
* GL2PS, an OpenGL to PostScript Printing Library
* Copyright (C) 1999-2020 C. Geuzaine
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of either:
*
* a) the GNU Library General Public License as published by the Free Software
* Foundation, either version 2 of the License, or (at your option) any later
* version; or
*
* b) the GL2PS License as published by Christophe Geuzaine, either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See either the GNU Library General Public License
* or the GL2PS License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library in the file named "COPYING.LGPL"; if not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* You should have received a copy of the GL2PS License with this library in the
* file named "COPYING.GL2PS"; if not, I will be glad to provide one.
*
* For the latest info about gl2ps and a full list of contributors, see
* https://geuz.org/gl2ps/.
*
* Please report all issues on https://gitlab.onelab.info/gl2ps/gl2ps/issues.
*/
#ifndef GL2PS_H
#define GL2PS_H
#include <stdio.h>
#include <stdlib.h>
/* Define GL2PSDLL at compile time to build a Windows DLL */
#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
# if defined(_MSC_VER)
# pragma warning(disable:4115)
# pragma warning(disable:4127)
# pragma warning(disable:4996)
# endif
# if !defined(NOMINMAX)
# define NOMINMAX
# endif
# include <windows.h>
# undef NOMINMAX
# if defined(GL2PSDLL)
# if defined(GL2PSDLL_EXPORTS)
# define GL2PSDLL_API __declspec(dllexport)
# else
# define GL2PSDLL_API __declspec(dllimport)
# endif
# else
# define GL2PSDLL_API
# endif
#else
# define GL2PSDLL_API
#endif
#if defined(__APPLE__) || defined(HAVE_OPENGL_GL_H)
# include <OpenGL/gl.h>
#else
# include <GL/gl.h>
#endif
/* Support for compressed PostScript/PDF/SVG and for embedded PNG
images in SVG */
#if defined(HAVE_ZLIB) || defined(HAVE_LIBZ)
# define GL2PS_HAVE_ZLIB
# if defined(HAVE_LIBPNG) || defined(HAVE_PNG)
# define GL2PS_HAVE_LIBPNG
# endif
#endif
#if defined(HAVE_NO_VSNPRINTF)
# define GL2PS_HAVE_NO_VSNPRINTF
#endif
/* Version number */
#define GL2PS_MAJOR_VERSION 1
#define GL2PS_MINOR_VERSION 4
#define GL2PS_PATCH_VERSION 3
#define GL2PS_EXTRA_VERSION ""
#define GL2PS_VERSION (GL2PS_MAJOR_VERSION + \
0.01 * GL2PS_MINOR_VERSION + \
0.0001 * GL2PS_PATCH_VERSION)
#define GL2PS_COPYRIGHT "(C) 1999-2020 C. Geuzaine"
/* Output file formats (the values and the ordering are important!) */
#define GL2PS_PS 0
#define GL2PS_EPS 1
#define GL2PS_TEX 2
#define GL2PS_PDF 3
#define GL2PS_SVG 4
#define GL2PS_PGF 5
/* Sorting algorithms */
#define GL2PS_NO_SORT 1
#define GL2PS_SIMPLE_SORT 2
#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 */
#define GL2PS_NONE 0
#define GL2PS_DRAW_BACKGROUND (1<<0)
#define GL2PS_SIMPLE_LINE_OFFSET (1<<1)
#define GL2PS_SILENT (1<<2)
#define GL2PS_BEST_ROOT (1<<3)
#define GL2PS_OCCLUSION_CULL (1<<4)
#define GL2PS_NO_TEXT (1<<5)
#define GL2PS_LANDSCAPE (1<<6)
#define GL2PS_NO_PS3_SHADING (1<<7)
#define GL2PS_NO_PIXMAP (1<<8)
#define GL2PS_USE_CURRENT_VIEWPORT (1<<9)
#define GL2PS_COMPRESS (1<<10)
#define GL2PS_NO_BLENDING (1<<11)
#define GL2PS_TIGHT_BOUNDING_BOX (1<<12)
#define GL2PS_NO_OPENGL_CONTEXT (1<<13)#define GL2PS_NO_TEX_FONTSIZE (1<<14)
#define GL2PS_SQUARE_POINTS (1<<15)
/* Arguments for gl2psEnable/gl2psDisable */
#define GL2PS_POLYGON_OFFSET_FILL 1
#define GL2PS_POLYGON_BOUNDARY 2
#define GL2PS_LINE_STIPPLE 3
#define GL2PS_BLEND 4
/* Arguments for gl2psLineCap/Join */
#define GL2PS_LINE_CAP_BUTT 0
#define GL2PS_LINE_CAP_ROUND 1
#define GL2PS_LINE_CAP_SQUARE 2
#define GL2PS_LINE_JOIN_MITER 0
#define GL2PS_LINE_JOIN_ROUND 1
#define GL2PS_LINE_JOIN_BEVEL 2
/* Text alignment (o=raster position; default mode is BL):
+---+ +---+ +---+ +---+ +---+ +---+ +-o-+ o---+ +---o
| o | o | | o | | | | | | | | | | | |
+---+ +---+ +---+ +-o-+ o---+ +---o +---+ +---+ +---+
C CL CR B BL BR T TL TR */
#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
typedef GLfloat GL2PSrgba[4];
typedef GLfloat GL2PSxyz[3];
typedef struct {
GL2PSxyz xyz;
GL2PSrgba rgba;
} GL2PSvertex;
/* Primitive types */
#define GL2PS_NO_TYPE -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
#define GL2PS_IMAGEMAP 7
#define GL2PS_IMAGEMAP_WRITTEN 8
#define GL2PS_IMAGEMAP_VISIBLE 9
#define GL2PS_SPECIAL 10
#if defined(__cplusplus)
extern "C" {
#endif
GL2PSDLL_API GLint gl2psBeginPage(const char *title, const char *producer,
GLint viewport[4], GLint format, GLint sort,
GLint options, GLint colormode,
GLint colorsize, GL2PSrgba *colormap,
GLint nr, GLint ng, GLint nb, GLint buffersize,
FILE *stream, const char *filename);
GL2PSDLL_API GLint gl2psEndPage(void);
GL2PSDLL_API GLint gl2psSetOptions(GLint options);
GL2PSDLL_API GLint gl2psGetOptions(GLint *options);GL2PSDLL_API GLint gl2psBeginViewport(GLint viewport[4]);
GL2PSDLL_API GLint gl2psEndViewport(void);
GL2PSDLL_API GLint gl2psText(const char *str, const char *fontname,
GLshort fontsize);
GL2PSDLL_API GLint gl2psTextOpt(const char *str, const char *fontname,
GLshort fontsize, GLint align, GLfloat angle);
GL2PSDLL_API GLint gl2psTextOptColor(const char *str, const char *fontname,
GLshort fontsize, GLint align, GLfloat angle,
GL2PSrgba color);
GL2PSDLL_API GLint gl2psTextOptColorBL(const char *str, const char *fontname,
GLshort fontsize, GLint align, GLfloat angle,
GL2PSrgba color, GLfloat blx, GLfloat bly);
GL2PSDLL_API GLint gl2psSpecial(GLint format, const char *str);
GL2PSDLL_API GLint gl2psSpecialColor(GLint format, const char *str, GL2PSrgba rgba);
GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
GLint xorig, GLint yorig,
GLenum format, GLenum type, const void *pixels);
GL2PSDLL_API GLint gl2psEnable(GLint mode);
GL2PSDLL_API GLint gl2psDisable(GLint mode);
GL2PSDLL_API GLint gl2psPointSize(GLfloat value);
GL2PSDLL_API GLint gl2psLineCap(GLint value);
GL2PSDLL_API GLint gl2psLineJoin(GLint value);
GL2PSDLL_API GLint gl2psLineWidth(GLfloat value);
GL2PSDLL_API GLint gl2psBlendFunc(GLenum sfactor, GLenum dfactor);
GL2PSDLL_API GLint gl2psSorting(GLint mode);
/* referenced in the documentation, but not fully documented */
GL2PSDLL_API GLint gl2psForceRasterPos(GL2PSvertex *vert);
GL2PSDLL_API void gl2psAddPolyPrimitive(GLshort type, GLshort numverts,
GL2PSvertex *verts, GLint offset,
GLfloat ofactor, GLfloat ounits,
GLushort pattern, GLint factor,
GLfloat width, GLint linecap,
GLint linejoin, char boundary);
/* undocumented */
GL2PSDLL_API GLint gl2psDrawImageMap(GLsizei width, GLsizei height,
const GLfloat position[3],
const unsigned char *imagemap);
GL2PSDLL_API const char *gl2psGetFileExtension(GLint format);
GL2PSDLL_API const char *gl2psGetFormatDescription(GLint format);
GL2PSDLL_API GLint gl2psGetFileFormat(void);
GL2PSDLL_API GLint gl2psSetTexScaling(GLfloat scaling);
#if defined(__cplusplus)
}
#endif
#endif