{ $Id$ Translation of the Mesa GLU headers for FreePascal Copyright (C) 1999 Sebastian Guenther Mesa 3-D graphics library Version: 3.0 Copyright (C) 1995-1998 Brian Paul 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., 675 Mass Ave, Cambridge, MA 02139, USA. } {$MODE delphi} // objfpc would not work because of direct proc var assignments {You have to enable Macros (compiler switch "-Sm") for compiling this unit! This is necessary for supporting different platforms with different calling conventions via a single unit.} unit GLU; interface {$MACRO ON} {$IFDEF Linux} uses GL; {$ELSE} {$MESSAGE Unsupported platform.} {$ENDIF} // ======================================================= // Unit specific extensions // ======================================================= function InitGLUFromLibrary(libname: PChar): Boolean; // determines automatically which libraries to use: function InitGLU: Boolean; var GLUDumpUnresolvedFunctions, GLUInitialized: Boolean; // ======================================================= // GLU consts, types and functions // ======================================================= %GLUDeclsIF var %GLUProcsPD // ======================================================= // // ======================================================= implementation {$LINKLIB m} function dlopen(AFile: PChar; mode: LongInt): Pointer; external 'dl'; function dlclose(handle: Pointer): LongInt; external 'dl'; function dlsym(handle: Pointer; name: PChar): Pointer; external 'dl'; function LoadLibrary(name: PChar): Pointer; begin Result := dlopen(name, $101 {RTLD_GLOBAL or RTLD_LAZY}); end; function GetProc(handle: Pointer; name: PChar): Pointer; begin Result := dlsym(handle, name); if (Result = nil) and GLUDumpUnresolvedFunctions then WriteLn('Unresolved: ', name); end; var libGLU : Pointer; function InitGLUFromLibrary(libname: PChar): Boolean; begin Result := False; libGLU := LoadLibrary(libname); if not Assigned(libGLU) then exit; %GLUProcsPL GLUInitialized := True; Result := True; end; function InitGLU: Boolean; begin Result := InitGLUFromLibrary('libGLU.so') or InitGLUFromLibrary('libGLU.so.1') or InitGLUFromLibrary('libMesaGLU.so') or InitGLUFromLibrary('libMesaGLU.so.3'); end; initialization InitGlU; finalization if Assigned(libGLU) then dlclose(libGLU); end. { $Log$ Revision 1.1 2000-09-03 21:25:45 peter * new updated version * gtkglarea unit and demo * win32 opengl headers * morph3d demo Revision 1.1 2000/07/13 06:34:18 michael + Initial import Revision 1.1 2000/05/31 00:35:14 alex added working templates }