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Diffstat (limited to 'common/fltk/FL/gl.h')
| -rw-r--r-- | common/fltk/FL/gl.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/common/fltk/FL/gl.h b/common/fltk/FL/gl.h new file mode 100644 index 00000000..ecf37a48 --- /dev/null +++ b/common/fltk/FL/gl.h @@ -0,0 +1,112 @@ +// +// "$Id: gl.h 8623 2011-04-24 17:09:41Z AlbrechtS $" +// +// OpenGL header file for the Fast Light Tool Kit (FLTK). +// +// Copyright 1998-2011 by Bill Spitzak and others. +// +// You must include this instead of GL/gl.h to get the Microsoft +// APIENTRY stuff included (from <windows.h>) prior to the OpenGL +// header files. +// +// This file also provides "missing" OpenGL functions, and +// gl_start() and gl_finish() to allow OpenGL to be used in any window +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of 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. +// +// This library 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 the GNU +// Library General Public License for more details. +// +// You should have received a copy of the GNU Library General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +// USA. +// +// Please report all bugs and problems on the following page: +// +// http://www.fltk.org/str.php +// + +/** \file gl.h + * This file defines wrapper functions for OpenGL in FLTK + * + * To use OpenGL from within an FLTK application you MUST use gl_visual() + * to select the default visual before doing show() on any windows. Mesa + * will crash if yoy try to use a visual not returned by glxChooseVidual. + * + * This does not work with Fl_Double_Window's! It will try to draw + * into the front buffer. Depending on the system this will either + * crash or do nothing (when pixmaps are being used as back buffer + * and GL is being done by hardware), work correctly (when GL is done + * with software, such as Mesa), or draw into the front buffer and + * be erased when the buffers are swapped (when double buffer hardware + * is being used) + */ + +#ifndef FL_gl_H +# define FL_gl_H + +# include "Enumerations.H" // for color names +# ifdef WIN32 +# include <windows.h> +# endif +# ifndef APIENTRY +# if defined(__CYGWIN__) +# define APIENTRY __attribute__ ((__stdcall__)) +# else +# define APIENTRY +# endif +# endif + +# ifdef __APPLE__ +# include <OpenGL/gl.h> +# else +# include <GL/gl.h> +# endif + +FL_EXPORT void gl_start(); +FL_EXPORT void gl_finish(); + +FL_EXPORT void gl_color(Fl_Color i); +/** back compatibility */ +inline void gl_color(int c) {gl_color((Fl_Color)c);} + +FL_EXPORT void gl_rect(int x,int y,int w,int h); +/** + Fills the given rectangle with the current color. + \see gl_rect(int x, int y, int w, int h) + */ +inline void gl_rectf(int x,int y,int w,int h) {glRecti(x,y,x+w,y+h);} + +FL_EXPORT void gl_font(int fontid, int size); +FL_EXPORT int gl_height(); +FL_EXPORT int gl_descent(); +FL_EXPORT double gl_width(const char *); +FL_EXPORT double gl_width(const char *, int n); +FL_EXPORT double gl_width(uchar); + +FL_EXPORT void gl_draw(const char*); +FL_EXPORT void gl_draw(const char*, int n); +FL_EXPORT void gl_draw(const char*, int x, int y); +FL_EXPORT void gl_draw(const char*, float x, float y); +FL_EXPORT void gl_draw(const char*, int n, int x, int y); +FL_EXPORT void gl_draw(const char*, int n, float x, float y); +FL_EXPORT void gl_draw(const char*, int x, int y, int w, int h, Fl_Align); +FL_EXPORT void gl_measure(const char*, int& x, int& y); +#ifdef __APPLE__ +extern FL_EXPORT void gl_texture_pile_height(int max); +extern FL_EXPORT int gl_texture_pile_height(); +#endif + +FL_EXPORT void gl_draw_image(const uchar *, int x,int y,int w,int h, int d=3, int ld=0); + +#endif // !FL_gl_H + +// +// End of "$Id: gl.h 8623 2011-04-24 17:09:41Z AlbrechtS $". +// |