initial version for the glut eventloop

2 files changed, 187 insertions, 0 deletions

diff --git a/src/ivyglutloop.c b/src/ivyglutloop.c
new file mode 100755
index 0000000..b78c183
--- /dev/null
+++ b/src/ivyglutloop.c
@@ -0,0 +1,131 @@
+/*
+ *	Ivy, C interface
+ *
+ *	Copyright (C) 1997-1999
+ *	Centre d'Études de la Navigation Aérienne
+ *
+ * 	Main loop based on GLUT ( OpenGL ) Toolkit
+ *
+ *	Authors: François-Régis Colin <colin@cenatoulouse.dgac.fr>
+ *		 Stéphane Chatty <chatty@cenatoulouse.dgac.fr>
+ *
+ *	$Id$
+ * 
+ *	Please refer to file version.h for the
+ *	copyright notice regarding this software
+ */
+
+#ifdef WIN32
+#include <windows.h>
+#endif
+#include <stdlib.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+
+#ifdef WIN32
+#else
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <signal.h>
+#endif
+
+
+#include <GL/Glut.h>
+
+#include "ivychannel.h"
+#include "ivyglutloop.h"
+
+struct _channel {
+	GLUTInputId id_read;
+	GLUTInputId id_delete;
+	void *data;
+	ChannelHandleDelete handle_delete;
+	ChannelHandleRead handle_read;
+	};
+
+
+static int channel_initialized = 0;
+
+ChannelInit channel_init = IvyGlutChannelInit;
+ChannelSetUp channel_setup = IvyGlutChannelSetUp;
+ChannelClose channel_close = IvyGlutChannelClose;
+
+
+void IvyGlutChannelInit(void)
+{
+
+	if ( channel_initialized ) return;
+
+	/* pour eviter les plantages quand les autres applis font core-dump */
+#ifndef WIN32
+	signal( SIGPIPE, SIG_IGN);
+#endif
+	channel_initialized = 1;
+}
+
+void IvyGlutChannelClose( Channel channel )
+{
+
+	if ( channel->handle_delete )
+		(*channel->handle_delete)( channel->data );
+	glutRemoveInput( channel->id_read );
+	glutRemoveInput( channel->id_delete );
+}
+
+
+static void IvyGlutHandleChannelRead( int source, GLUTInputId id, void *data )
+{
+	Channel channel = (Channel)data;
+#ifdef DEBUG
+	printf("Handle Channel read %d\n",source );
+#endif
+	(*channel->handle_read)(channel,source,channel->data);
+}
+
+static void IvyGlutHandleChannelDelete( int source, GLUTInputId id, void *data )
+{
+	Channel channel = (Channel)data;
+#ifdef DEBUG
+	printf("Handle Channel delete %d\n",source );
+#endif
+	(*channel->handle_delete)(channel->data);
+}
+
+Channel IvyGlutChannelSetUp(HANDLE fd, void *data,
+				ChannelHandleDelete handle_delete,
+				ChannelHandleRead handle_read
+				)						
+{
+	Channel channel;
+
+	channel = (Channel)malloc( sizeof(struct _channel) );
+	if ( !channel )
+		{
+		fprintf(stderr,"NOK Memory Alloc Error\n");
+		exit(0);
+		}
+
+	channel->handle_delete = handle_delete;
+	channel->handle_read = handle_read;
+	channel->data = data;
+
+	channel->id_read = glutAddInput( fd,  IvyGlutHandleChannelRead, channel);
+	channel->id_delete = glutAddInput( fd, IvyGlutHandleChannelDelete, channel);
+
+	return channel;
+}
+
+
+void
+IvyStop ()
+{
+  /* To be implemented */
+}
+
diff --git a/src/ivyglutloop.h b/src/ivyglutloop.h
new file mode 100755
index 0000000..0819a93
--- /dev/null
+++ b/src/ivyglutloop.h
@@ -0,0 +1,56 @@
+/*
+ *	Ivy, C interface
+ *
+ *	Copyright (C) 1997-1999
+ *	Centre d'Études de la Navigation Aérienne
+ *
+ * 	Main loop based on GLUT ( OpenGL ) Toolkit
+ *
+ *	Authors: François-Régis Colin <colin@cenatoulouse.dgac.fr>
+ *		 Stéphane Chatty <chatty@cenatoulouse.dgac.fr>
+ *
+ *	$Id$
+ * 
+ *	Please refer to file version.h for the
+ *	copyright notice regarding this software
+ */
+
+#ifndef IVYGLUTLOOP_H
+#define IVYGLUTLOOP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <GL/Glut.h>
+
+/* general Handle */
+
+#define ANYPORT	0
+
+#ifdef WIN32
+#include <windows.h>
+#define HANDLE SOCKET
+#else
+#define HANDLE int
+#endif
+
+#include "ivychannel.h"
+
+extern void IvyGlutChannelInit(void);
+
+extern Channel IvyGlutChannelSetUp(
+		HANDLE fd,
+		void *data,
+		ChannelHandleDelete handle_delete,
+		ChannelHandleRead handle_read
+);
+
+extern void IvyGlutChannelClose( Channel channel );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+