Added basic GFX wrapper

1 files changed, 170 insertions, 0 deletions

diff --git a/src/config.c b/src/config.c
new file mode 100644
index 0000000..edff062
--- /dev/null
+++ b/src/config.c
@@ -0,0 +1,170 @@
+/*
+
+    ezx81 - X11 ZX81 emulator
+
+    Copyright (C) 2003  Ian Cowburn (ianc@noddybox.demon.co.uk)
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    -------------------------------------------------------------------------
+
+    Config file
+
+*/
+static const char ident[]="$Id$";
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "exit.h"
+#include "config.h"
+
+static const char ident_h[]=EZX81_CONFIG_H;
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+
+/* ---------------------------------------- CONFIG
+*/
+static char	rompath[FILENAME_MAX]="zx81.rom";
+static int	fullscreen=FALSE;
+static int	memsize=16;
+static int	frames=50;
+static int	scale=1;
+
+static const struct
+{
+    const char	*name;
+    void	*var;
+    int		is_int;
+} config[]= {
+		{"rompath",	rompath,	FALSE},
+		{"fullscreen",	&fullscreen,	TRUE},
+		{"memsize",	&memsize,	TRUE},
+		{"frames",	&frames,	TRUE},
+		{"scale",	&scale,		TRUE},
+		{NULL,		NULL,		FALSE}
+	    };
+
+
+/* ---------------------------------------- PRIVATE FUNCTIONS
+*/
+static void Parse(FILE *fp)
+{
+    char buff[1024];
+
+    while(fgets(buff,sizeof buff,fp))
+    {
+    	size_t l;
+
+	l=strlen(buff);
+
+	if (buff[l-1]=='\n')
+	    buff[--l]=0;
+
+	if (l>0 && buff[0]!='#')
+	{
+	    char *t1=NULL;
+	    char *t2=NULL;
+
+	    t1=strtok(buff,"\t");
+	    t2=strtok(NULL,"\t");
+
+	    if (t2)
+	    {
+	    	int f;
+
+		for(f=0;config[f].name;f++)
+		{
+		    if (strcmp(config[f].name,t1)==0)
+		    {
+			if (config[f].is_int)
+			{
+			    int *i;
+
+			    i=config[f].var;
+			    *i=atoi(t2);
+			}
+			else
+			{
+			    char *p;
+
+			    p=config[f].var;
+			    strcpy(p,t2);
+			}
+		    }
+		}
+	    }
+	    else
+	    {
+	    	fprintf(stderr,"Ignored bad config: %s %s\n",t1,t2 ? t2:"");
+	    }
+	}
+    }
+}
+
+
+/* ---------------------------------------- EXPORTED INTERFACES
+*/
+void ConfigRead(void)
+{
+    FILE *fp;
+    char path[FILENAME_MAX]={0};
+
+    if (getenv("HOME"))
+    	strcpy(path,getenv("HOME"));
+
+    strcat(path,"/.ezx81");
+
+    if ((fp=fopen(path,"r")))
+    {
+    	Parse(fp);
+	fclose(fp);
+    }
+}
+
+
+int IConfig(IConfigVar v)
+{
+    static const int *vars[]=
+    		{
+		    &fullscreen,
+		    &memsize,
+		    &frames,
+		    &scale
+		};
+
+    return *vars[v];
+}
+
+
+const char *SConfig(SConfigVar v)
+{
+    static const char *vars[]=
+    		{
+		    rompath
+		};
+
+    return vars[v];
+}
+
+
+/* END OF FILE */