Port of Duke Nukem 3D

This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.

Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9

1 files changed, 134 insertions, 0 deletions

diff --git a/apps/plugins/sdl/src/SDL_fatal.c b/apps/plugins/sdl/src/SDL_fatal.c
new file mode 100644
index 0000000..d422a01
--- /dev/null
+++ b/apps/plugins/sdl/src/SDL_fatal.c
@@ -0,0 +1,134 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2012 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+/* General fatal signal handling code for SDL */
+
+#ifdef HAVE_SIGNAL_H
+
+#include <signal.h>
+
+#include "SDL.h"
+#include "SDL_fatal.h"
+
+/* This installs some signal handlers for the more common fatal signals,
+   so that if the programmer is lazy, the app doesn't die so horribly if
+   the program crashes.
+*/
+
+static void SDL_Parachute(int sig)
+{
+	signal(sig, SIG_DFL);
+	SDL_Quit();
+	raise(sig);
+}
+
+static int SDL_fatal_signals[] = {
+	SIGSEGV,
+#ifdef SIGBUS
+	SIGBUS,
+#endif
+#ifdef SIGFPE
+	SIGFPE,
+#endif
+#ifdef SIGQUIT
+	SIGQUIT,
+#endif
+	0
+};
+
+void SDL_InstallParachute(void)
+{
+	/* Set a handler for any fatal signal not already handled */
+	int i;
+#ifdef HAVE_SIGACTION
+	struct sigaction action;
+
+	for ( i=0; SDL_fatal_signals[i]; ++i ) {
+		sigaction(SDL_fatal_signals[i], NULL, &action);
+		if ( action.sa_handler == SIG_DFL ) {
+			action.sa_handler = SDL_Parachute;
+			sigaction(SDL_fatal_signals[i], &action, NULL);
+		}
+	}
+#ifdef SIGALRM
+	/* Set SIGALRM to be ignored -- necessary on Solaris */
+	sigaction(SIGALRM, NULL, &action);
+	if ( action.sa_handler == SIG_DFL ) {
+		action.sa_handler = SIG_IGN;
+		sigaction(SIGALRM, &action, NULL);
+	}
+#endif
+#else
+	void (*ohandler)(int);
+
+	for ( i=0; SDL_fatal_signals[i]; ++i ) {
+		ohandler = signal(SDL_fatal_signals[i], SDL_Parachute);
+		if ( ohandler != SIG_DFL ) {
+			signal(SDL_fatal_signals[i], ohandler);
+		}
+	}
+#endif /* HAVE_SIGACTION */
+	return;
+}
+
+void SDL_UninstallParachute(void)
+{
+	/* Remove a handler for any fatal signal handled */
+	int i;
+#ifdef HAVE_SIGACTION
+	struct sigaction action;
+
+	for ( i=0; SDL_fatal_signals[i]; ++i ) {
+		sigaction(SDL_fatal_signals[i], NULL, &action);
+		if ( action.sa_handler == SDL_Parachute ) {
+			action.sa_handler = SIG_DFL;
+			sigaction(SDL_fatal_signals[i], &action, NULL);
+		}
+	}
+#else
+	void (*ohandler)(int);
+
+	for ( i=0; SDL_fatal_signals[i]; ++i ) {
+		ohandler = signal(SDL_fatal_signals[i], SIG_DFL);
+		if ( ohandler != SDL_Parachute ) {
+			signal(SDL_fatal_signals[i], ohandler);
+		}
+	}
+#endif /* HAVE_SIGACTION */
+}
+
+#else
+
+/* No signals on this platform, nothing to do.. */
+
+void SDL_InstallParachute(void)
+{
+	return;
+}
+
+void SDL_UninstallParachute(void)
+{
+	return;
+}
+
+#endif /* HAVE_SIGNAL_H */