152 lines
3.6 KiB
C++
152 lines
3.6 KiB
C++
// bootstrap.cxx -- bootstrap routines: main()
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//
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// Written by Curtis Olson, started May 1997.
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//
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// Copyright (C) 1997 - 2002 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// 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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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if defined(__linux__) && defined(__i386__)
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# include <fpu_control.h>
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# include <signal.h>
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#endif
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#include <stdlib.h>
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#include <simgear/compiler.h>
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#include <simgear/misc/exception.hxx>
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#include <simgear/debug/logstream.hxx>
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#include STL_IOSTREAM
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SG_USING_STD(cerr);
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SG_USING_STD(endl);
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#include "main.hxx"
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#ifdef HAVE_WINDOWS_H
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# include <windows.h>
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# include <float.h>
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#endif
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#include FG_GLUT_H
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#ifdef macintosh
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# include <console.h> // -dw- for command line dialog
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#endif
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#if defined(__linux__) && defined(__i386__)
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static void handleFPE (int);
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static void
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initFPE ()
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{
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fpu_control_t fpe_flags = 0;
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_FPU_GETCW(fpe_flags);
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// fpe_flags &= ~_FPU_MASK_IM; // invalid operation
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// fpe_flags &= ~_FPU_MASK_DM; // denormalized operand
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// fpe_flags &= ~_FPU_MASK_ZM; // zero-divide
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// fpe_flags &= ~_FPU_MASK_OM; // overflow
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// fpe_flags &= ~_FPU_MASK_UM; // underflow
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// fpe_flags &= ~_FPU_MASK_PM; // precision (inexact result)
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_FPU_SETCW(fpe_flags);
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signal(SIGFPE, handleFPE);
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}
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static void
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handleFPE (int num)
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{
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initFPE();
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SG_LOG(SG_GENERAL, SG_ALERT, "Floating point interrupt (SIGFPE)");
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}
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#endif
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#ifdef __APPLE__
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typedef struct
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{
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int lo;
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int hi;
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} PSN;
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extern "C" {
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short CPSGetCurrentProcess(PSN *psn);
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short CPSSetProcessName (PSN *psn, char *processname);
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short CPSEnableForegroundOperation(PSN *psn, int _arg2, int _arg3, int _arg4, int _arg5);
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short CPSSetFrontProcess(PSN *psn);
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};
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#define CPSEnableFG(psn) CPSEnableForegroundOperation(psn,0x03,0x3C,0x2C,0x1103)
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#endif
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// Main entry point; catch any exceptions that have made it this far.
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int main ( int argc, char **argv ) {
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// Enable floating-point exceptions for Linux/x86
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#if defined(__linux__) && defined(__i386__)
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initFPE();
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#endif
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// Enable floating-point exceptions for Windows
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#if defined( _MSC_VER ) && defined( DEBUG )
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// Christian, we should document what this does
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_control87( _EM_INEXACT, _MCW_EM );
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#endif
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#if defined( HAVE_BC5PLUS )
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_control87(MCW_EM, MCW_EM); /* defined in float.h */
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#endif
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// Keyboard focus hack
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#ifdef __APPLE__
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{
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PSN psn;
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glutInit (&argc, argv);
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CPSGetCurrentProcess(&psn);
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CPSSetProcessName(&psn, "FlightGear");
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CPSEnableFG(&psn);
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CPSSetFrontProcess(&psn);
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}
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#endif
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// FIXME: add other, more specific
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// exceptions.
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try {
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fgMainInit(argc, argv);
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} catch (sg_throwable &t) {
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// We must use cerr rather than
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// logging, since logging may be
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// disabled.
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cerr << "Fatal error: " << t.getFormattedMessage()
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<< "\n (received from " << t.getOrigin() << ')' << endl;
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exit(1);
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}
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return 0;
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}
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