FLTK 1.3.0
gl.h
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1 //
2 // "$Id: gl.h 8623 2011-04-24 17:09:41Z AlbrechtS $"
3 //
4 // OpenGL header file for the Fast Light Tool Kit (FLTK).
5 //
6 // Copyright 1998-2011 by Bill Spitzak and others.
7 //
8 // You must include this instead of GL/gl.h to get the Microsoft
9 // APIENTRY stuff included (from <windows.h>) prior to the OpenGL
10 // header files.
11 //
12 // This file also provides "missing" OpenGL functions, and
13 // gl_start() and gl_finish() to allow OpenGL to be used in any window
14 //
15 // This library is free software; you can redistribute it and/or
16 // modify it under the terms of the GNU Library General Public
17 // License as published by the Free Software Foundation; either
18 // version 2 of the License, or (at your option) any later version.
19 //
20 // This library is distributed in the hope that it will be useful,
21 // but WITHOUT ANY WARRANTY; without even the implied warranty of
22 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 // Library General Public License for more details.
24 //
25 // You should have received a copy of the GNU Library General Public
26 // License along with this library; if not, write to the Free Software
27 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 // USA.
29 //
30 // Please report all bugs and problems on the following page:
31 //
32 // http://www.fltk.org/str.php
33 //
34 
51 #ifndef FL_gl_H
52 # define FL_gl_H
53 
54 # include "Enumerations.H" // for color names
55 # ifdef WIN32
56 # include <windows.h>
57 # endif
58 # ifndef APIENTRY
59 # if defined(__CYGWIN__)
60 # define APIENTRY __attribute__ ((__stdcall__))
61 # else
62 # define APIENTRY
63 # endif
64 # endif
65 
66 # ifdef __APPLE__
67 # include <OpenGL/gl.h>
68 # else
69 # include <GL/gl.h>
70 # endif
71 
72 FL_EXPORT void gl_start();
73 FL_EXPORT void gl_finish();
74 
75 FL_EXPORT void gl_color(Fl_Color i);
77 inline void gl_color(int c) {gl_color((Fl_Color)c);}
78 
79 FL_EXPORT void gl_rect(int x,int y,int w,int h);
84 inline void gl_rectf(int x,int y,int w,int h) {glRecti(x,y,x+w,y+h);}
85 
86 FL_EXPORT void gl_font(int fontid, int size);
87 FL_EXPORT int gl_height();
88 FL_EXPORT int gl_descent();
89 FL_EXPORT double gl_width(const char *);
90 FL_EXPORT double gl_width(const char *, int n);
91 FL_EXPORT double gl_width(uchar);
92 
93 FL_EXPORT void gl_draw(const char*);
94 FL_EXPORT void gl_draw(const char*, int n);
95 FL_EXPORT void gl_draw(const char*, int x, int y);
96 FL_EXPORT void gl_draw(const char*, float x, float y);
97 FL_EXPORT void gl_draw(const char*, int n, int x, int y);
98 FL_EXPORT void gl_draw(const char*, int n, float x, float y);
99 FL_EXPORT void gl_draw(const char*, int x, int y, int w, int h, Fl_Align);
100 FL_EXPORT void gl_measure(const char*, int& x, int& y);
101 #ifdef __APPLE__
102 extern FL_EXPORT void gl_texture_pile_height(int max);
103 extern FL_EXPORT int gl_texture_pile_height();
104 #endif
105 
106 FL_EXPORT void gl_draw_image(const uchar *, int x,int y,int w,int h, int d=3, int ld=0);
107 
108 #endif // !FL_gl_H
109 
110 //
111 // End of "$Id: gl.h 8623 2011-04-24 17:09:41Z AlbrechtS $".
112 //