87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
//
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// "$Id: Fl_Gl_Choice.H,v 1.4 1999/01/07 19:17:20 mike Exp $"
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//
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// OpenGL definitions for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-1999 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems to "fltk-bugs@easysw.com".
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//
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// Internal interface to set up OpenGL.
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//
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// A "Fl_Gl_Choice" is used to cache results of calling the
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// OpenGL code for system-specific information needed to
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// implement a "mode".
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// For X this is a visual, and this must be called *before*
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// the X window is created.
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// For win32 this can be delayed to a more convienent time,
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// as it only returns information for modifying a device
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// context.
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// This is used by Fl_Gl_Window, gl_start(), and gl_visual()
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#ifndef Fl_Gl_Choice_H
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#define Fl_Gl_Choice_H
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#ifdef WIN32
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# include <windows.h>
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# include <FL/gl.h>
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# define GLXContext HGLRC
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# define GLX_BUFFER_SIZE 1
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# define GLX_RGBA 2
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# define GLX_GREEN_SIZE 3
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# define GLX_ALPHA_SIZE 4
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# define GLX_ACCUM_GREEN_SIZE 5
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# define GLX_ACCUM_ALPHA_SIZE 6
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# define GLX_DOUBLEBUFFER 7
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# define GLX_DEPTH_SIZE 8
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# define GLX_STENCIL_SIZE 9
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#else
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# include <GL/glx.h>
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#endif
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// one of these structures is returned:
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class Fl_Gl_Choice {
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int mode;
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const int *alist;
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Fl_Gl_Choice *next;
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public:
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#ifdef WIN32
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PIXELFORMATDESCRIPTOR pfd;
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#else
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XVisualInfo *vis; // the visual to use
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Colormap colormap; // a colormap to use
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#endif
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uchar r,d,o; // rgb mode, double buffered, overlay flags
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// either use mode flags from gl_draw.H or a literal glX int list.
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// one of the two arguments must be zero!
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static Fl_Gl_Choice *find(int mode, const int *);
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};
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#ifdef WIN32
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// function to create and init the dc needed to draw OpenGL:
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class Fl_Window;
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HDC fl_private_dc(Fl_Window*, int, Fl_Gl_Choice **gp);
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#endif
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#endif
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//
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// End of "$Id: Fl_Gl_Choice.H,v 1.4 1999/01/07 19:17:20 mike Exp $".
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//
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