From 3319741e6f9fc3232eb40462a261271b9af2dcb2 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Thu, 20 May 2010 07:07:37 +0000
Subject: xserver git update 20/5/2010

---
 xorg-server/hw/xfree86/common/xf86Option.c | 47 ++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

(limited to 'xorg-server/hw/xfree86/common/xf86Option.c')

diff --git a/xorg-server/hw/xfree86/common/xf86Option.c b/xorg-server/hw/xfree86/common/xf86Option.c
index 965ce4c7d..9856a6352 100644
--- a/xorg-server/hw/xfree86/common/xf86Option.c
+++ b/xorg-server/hw/xfree86/common/xf86Option.c
@@ -223,6 +223,18 @@ LookupBoolOption(pointer optlist, const char *name, int deflt, Bool markUsed)
     return deflt;
 }
 
+static int
+LookupPercentOption(pointer optlist, const char *name, double deflt, Bool markUsed)
+{
+    OptionInfoRec o;
+
+    o.name = name;
+    o.type = OPTV_PERCENT;
+    if (ParseOptionValue(-1, optlist, &o, markUsed))
+	deflt = o.value.realnum;
+    return deflt;
+}
+
 /* These xf86Set* functions are intended for use by non-screen specific code */
 
 int
@@ -252,6 +264,12 @@ xf86SetBoolOption(pointer optlist, const char *name, int deflt)
     return LookupBoolOption(optlist, name, deflt, TRUE);
 }
 
+double
+xf86SetPercentOption(pointer optlist, const char *name, double deflt)
+{
+    return LookupPercentOption(optlist, name, deflt, TRUE);
+}
+
 /*
  * These are like the Set*Option functions, but they don't mark the options
  * as used.
@@ -283,6 +301,12 @@ xf86CheckBoolOption(pointer optlist, const char *name, int deflt)
     return LookupBoolOption(optlist, name, deflt, FALSE);
 }
 
+
+double
+xf86CheckPercentOption(pointer optlist, const char *name, double deflt)
+{
+    return LookupPercentOption(optlist, name, deflt, FALSE);
+}
 /*
  * addNewOption() has the required property of replacing the option value
  * if the option is already present.
@@ -309,6 +333,14 @@ xf86ReplaceBoolOption(pointer optlist, const char *name, const Bool val)
     return xf86AddNewOption(optlist,name,val?"True":"False");
 }
 
+pointer
+xf86ReplacePercentOption(pointer optlist, const char *name, const double val)
+{
+    char tmp[16];
+    sprintf(tmp, "%lf%%", val);
+    return xf86AddNewOption(optlist,name,tmp);
+}
+
 pointer
 xf86ReplaceStrOption(pointer optlist, const char *name, const char* val)
 {
@@ -533,6 +565,21 @@ ParseOptionValue(int scrnIndex, pointer options, OptionInfoPtr p,
 		p->found = FALSE;
 	    }
 	    break;
+	case OPTV_PERCENT:
+	    {
+		char tmp = 0;
+		/* awkward match, but %% doesn't increase the match counter,
+		 * hence 100 looks the same as 100% to the caller of sccanf
+		 */
+		if (sscanf(s, "%lf%c", &p->value.realnum, &tmp) != 2 || tmp != '%') {
+		    xf86DrvMsg(scrnIndex, X_WARNING,
+			       "Option \"%s\" requires a percent value\n", p->name);
+		    p->found = FALSE;
+		} else {
+		    p->found = TRUE;
+		}
+	    }
+	    break;
 	case OPTV_FREQ:	
 	    if (*s == '\0') {
 		xf86DrvMsg(scrnIndex, X_WARNING,
-- 
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