From 2bc5bd50a50931972bcffe59835e6d477343f1cf Mon Sep 17 00:00:00 2001
From: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
Date: Mon, 16 Jul 2012 15:03:01 +0100
Subject: hw/xwin: allow DPI configuration in XWinrc

Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
---
 hw/xwin/man/XWinrc.man |  5 +++++
 hw/xwin/winconfig.c    |  1 +
 hw/xwin/winconfig.h    |  1 +
 hw/xwin/winprefslex.l  |  1 +
 hw/xwin/winprefsyacc.y | 16 ++++++++++++++++
 hw/xwin/winprocarg.c   |  8 ++++++++
 6 files changed, 32 insertions(+)

diff --git a/hw/xwin/man/XWinrc.man b/hw/xwin/man/XWinrc.man
index 71d8dad23..820528730 100644
--- a/hw/xwin/man/XWinrc.man
+++ b/hw/xwin/man/XWinrc.man
@@ -53,6 +53,11 @@ There are four kinds of instructions: miscellaneous, menu, icon and style.
 
 
 .SH Miscellaneous instruction
+.TP 8
+.B DPI \fIresolution\fP
+Sets the resolution for all screens, in dots per inch.  To be used when
+the server cannot determine the screen size(s) from the hardware.
+
 .TP 8
 .B DEBUG \fIString\fP
 The \fIString\fP is printed to the XWin log file.
diff --git a/hw/xwin/winconfig.c b/hw/xwin/winconfig.c
index d26cc9376..afb0cfa27 100644
--- a/hw/xwin/winconfig.c
+++ b/hw/xwin/winconfig.c
@@ -70,6 +70,7 @@ WinCmdlineRec g_cmdline = {
 #ifdef XWIN_XF86CONFIG
     NULL,                       /* keyboard */
 #endif
+    FALSE,                      /* customDPI */
     NULL,                       /* xkbRules */
     NULL,                       /* xkbModel */
     NULL,                       /* xkbLayout */
diff --git a/hw/xwin/winconfig.h b/hw/xwin/winconfig.h
index f079368c7..3bc25d0bf 100644
--- a/hw/xwin/winconfig.h
+++ b/hw/xwin/winconfig.h
@@ -159,6 +159,7 @@ typedef struct {
 #ifdef XWIN_XF86CONFIG
     char *keyboard;
 #endif
+    Bool customDPI;
     char *xkbRules;
     char *xkbModel;
     char *xkbLayout;
diff --git a/hw/xwin/winprefslex.l b/hw/xwin/winprefslex.l
index 9e6f0d6d4..38401345a 100644
--- a/hw/xwin/winprefslex.l
+++ b/hw/xwin/winprefslex.l
@@ -90,6 +90,7 @@ RELOAD                  { return RELOAD; }
 TRAYICON                { return TRAYICON; }
 FORCEEXIT		{ return FORCEEXIT; }
 SILENTEXIT		{ return SILENTEXIT; }
+DPI                     { return DPI; }
 "{"                     { return LB; }
 "}"                     { return RB; }
 "\""[^\"\r\n]+"\""      { yylval.sVal = makestr(yytext+1); \
diff --git a/hw/xwin/winprefsyacc.y b/hw/xwin/winprefsyacc.y
index 9bb28ae92..6cc231fdc 100644
--- a/hw/xwin/winprefsyacc.y
+++ b/hw/xwin/winprefsyacc.y
@@ -39,6 +39,8 @@
 #include <stdlib.h>
 #define _STDLIB_H 1 /* bison checks this to know if stdlib has been included */
 #include <string.h>
+#include "globals.h"
+#include "winconfig.h"
 #include "winprefs.h"
 
 /* The following give better error messages in bison at the cost of a few KB */
@@ -57,6 +59,8 @@ static MENUPARSED menu;
 /* Functions for parsing the tokens into out structure */
 /* Defined at the end section of this file */
 
+static void SetDPI (char *dpi);
+
 static void SetIconDirectory (char *path);
 static void SetDefaultIcon (char *fname);
 static void SetRootMenu (char *menu);
@@ -121,6 +125,7 @@ extern int yylex(void);
 %token TRAYICON
 %token FORCEEXIT
 %token SILENTEXIT
+%token DPI
 
 %token <sVal> STRING
 %type <uVal>  group1
@@ -155,6 +160,10 @@ command:	defaulticon
 	| trayicon
 	| forceexit
 	| silentexit
+	| dpi
+	;
+
+dpi:		DPI STRING NEWLINE { SetDPI($2); free($2); }
 	;
 
 trayicon:	TRAYICON STRING NEWLINE { SetTrayIcon($2); free($2); }
@@ -259,6 +268,13 @@ yyerror (const char *s)
   return 1;
 }
 
+static void
+SetDPI (char *dpi)
+{
+  if (!g_cmdline.customDPI)
+    monitorResolution = atoi (dpi);
+}
+
 /* Miscellaneous functions to store TOKENs into the structure */
 static void
 SetIconDirectory (char *path)
diff --git a/hw/xwin/winprocarg.c b/hw/xwin/winprocarg.c
index 90a65499c..12dd9c5ba 100644
--- a/hw/xwin/winprocarg.c
+++ b/hw/xwin/winprocarg.c
@@ -956,6 +956,14 @@ ddxProcessArgument(int argc, char *argv[], int i)
         return 0;               /* Let DIX parse this again */
     }
 
+    /*
+     * Look for the '-dpi' argument
+     */
+    if (IS_OPTION("-dpi")) {
+        g_cmdline.customDPI = TRUE;
+        return 0;               /* Let DIX parse this again */
+    }
+
     /*
      * Look for the '-config' argument
      */
-- 
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