--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/gem/SDL_gemmouse.c	Sun Feb 17 19:54:28 2002 +0000
@@ -0,0 +1,158 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    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
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+/*
+ *	GEM Mouse manager
+ *
+ *	Patrice Mandin
+ */
+
+#include <stdlib.h>
+
+#include <gem.h>
+
+#include "SDL_error.h"
+#include "SDL_mouse.h"
+#include "SDL_events_c.h"
+#include "SDL_cursor_c.h"
+#include "SDL_gemmouse_c.h"
+
+/* Defines */
+
+#define MAXCURWIDTH 16
+#define MAXCURHEIGHT 16
+
+/* The implementation dependent data for the window manager cursor */
+struct WMcursor {
+	MFORM *mform_p;
+};
+
+
+void GEM_FreeWMCursor(_THIS, WMcursor *cursor)
+{
+	if (cursor == NULL)
+		return;
+	
+	graf_mouse(ARROW, NULL);
+
+	if (cursor->mform_p != NULL)
+		free(cursor->mform_p);
+
+	free(cursor);
+}
+
+WMcursor *GEM_CreateWMCursor(_THIS,
+		Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
+{
+	WMcursor *cursor;
+	MFORM *new_mform;
+	int i;
+
+	/* Check the size */
+	if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) {
+		SDL_SetError("Only cursors of dimension (%dx%d) are allowed",
+							MAXCURWIDTH, MAXCURHEIGHT);
+		return(NULL);
+	}
+
+	/* Allocate the cursor memory */
+	cursor = (WMcursor *)malloc(sizeof(WMcursor));
+	if ( cursor == NULL ) {
+		SDL_OutOfMemory();
+		return(NULL);
+	}
+
+	/* Allocate mform */
+	new_mform = (MFORM *)malloc(sizeof(MFORM));		
+	if (new_mform == NULL) {
+		free(cursor);
+		SDL_OutOfMemory();
+		return(NULL);
+	}
+
+	cursor->mform_p = new_mform;
+
+	new_mform->mf_xhot = hot_x;
+	new_mform->mf_yhot = hot_y;
+	new_mform->mf_nplanes = 1;
+	new_mform->mf_fg = 0;
+	new_mform->mf_bg = 1;
+
+	for (i=0;i<MAXCURHEIGHT;i++)
+	{
+		new_mform->mf_mask[i]=0;
+		new_mform->mf_data[i]=0;
+	}
+
+	if (w<=8) {
+		for (i=0;i<h;i++)
+		{
+			new_mform->mf_mask[i]= mask[i]<<8;
+			new_mform->mf_data[i]= data[i]<<8;
+		}
+	} else {
+		for (i=0;i<h;i++)
+		{
+			new_mform->mf_mask[i]= mask[i<<1]<<8 | mask[(i<<1)+1];
+			new_mform->mf_data[i]= data[i<<1]<<8 | data[(i<<1)+1];
+		}
+	}
+
+	return cursor;
+}
+
+int GEM_ShowWMCursor(_THIS, WMcursor *cursor)
+{
+	if (cursor == NULL) {
+		graf_mouse(M_OFF, NULL);
+	} else if (cursor->mform_p) {
+		graf_mouse(USER_DEF, cursor->mform_p);
+	}
+
+	return 1;
+}
+
+void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
+{
+	EVNTREC	warpevent;
+	
+	warpevent.ap_event = APPEVNT_MOUSE; 
+	warpevent.ap_value = (y << 16) | x;
+
+	appl_tplay(&warpevent, 1, 1000);
+}
+
+void GEM_CheckMouseMode(_THIS)
+{
+	/* If the mouse is hidden and input is grabbed, we use relative mode */
+	if ( !(SDL_cursorstate & CURSOR_VISIBLE) &&
+		(this->input_grab != SDL_GRAB_OFF) ) {
+		GEM_mouse_relative = SDL_TRUE;
+	} else {
+		GEM_mouse_relative = SDL_FALSE;
+	}
+}