Added plain text error messages to log entries from cOsd::SetAreas()

CONTRIBUTORS

@@ -1090,6 +1090,7 @@ Rolf Ahrenberg <rahrenbe@cc.hut.fi>
  in some syslog calls
  for a patch that was used to implement handling the "component descriptor" ("genre")
  for a patch that was used to implement handling the "parental rating descriptor"
+ suggesting to add plain text error messages to log entries from cOsd::SetAreas()
 
 Ralf Klueber <ralf.klueber@vodafone.com>
  for reporting a bug in cutting a recording if there is only a single editing mark

HISTORY

@@ -6287,3 +6287,5 @@ Video Disk Recorder Revision History
   is opened only for the local host (thanks to Manuel Reimer).
 - Renamed 'runvdr' to 'runvdr.template' and no longer copying it to the BINDIR
   in 'make install' (thanks to Martin Dauskardt).
+- Added plain text error messages to log entries from cOsd::SetAreas() (suggested
+  by Rolf Ahrenberg).

osd.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: osd.c 2.6 2009/12/06 11:33:47 kls Exp $
+ * $Id: osd.c 2.7 2010/01/17 13:27:24 kls Exp $
  */
 
 #include "osd.h"
@@ -724,6 +724,18 @@ void cBitmap::ShrinkBpp(int NewBpp)
 
 // --- cOsd ------------------------------------------------------------------
 
+static const char *OsdErrorTexts[] = {
+  "ok",
+  "too many areas",
+  "too many colors",
+  "bpp not supported",
+  "areas overlap",
+  "wrong alignment",
+  "out of memory",
+  "wrong area size",
+  "unknown",
+  };
+
 int cOsd::osdLeft = 0;
 int cOsd::osdTop = 0;
 int cOsd::osdWidth = 0;
@@ -814,7 +826,7 @@ eOsdError cOsd::SetAreas(const tArea *Areas, int NumAreas)
          }
      }
   else
-     esyslog("ERROR: cOsd::SetAreas returned %d", Result);
+     esyslog("ERROR: cOsd::SetAreas returned %d (%s)", Result, Result < oeUnknown ? OsdErrorTexts[Result] : OsdErrorTexts[oeUnknown]);
   return Result;
 }
 

osd.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: osd.h 2.4 2009/05/08 13:41:03 kls Exp $
+ * $Id: osd.h 2.5 2010/01/17 13:23:50 kls Exp $
  */
 
 #ifndef __OSD_H
@@ -36,7 +36,7 @@ enum {
   clrWhite       = 0xFFFCFCFC,
   };
 
-enum eOsdError { oeOk,
+enum eOsdError { oeOk, // see also OsdErrorTexts in osd.c
                  oeTooManyAreas,
                  oeTooManyColors,
                  oeBppNotSupported,