diff -r 000000000000 -r bde4ae8d615e os/graphics/graphicscomposition/openwfcompositionengine/common/src/owfdebug.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/graphics/graphicscomposition/openwfcompositionengine/common/src/owfdebug.c	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,148 @@
+/* Copyright (c) 2009 The Khronos Group Inc.
+ * Portions copyright (c) 2009-2010  Nokia Corporation and/or its subsidiary(-ies)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and/or associated documentation files (the
+ * "Materials"), to deal in the Materials without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Materials, and to
+ * permit persons to whom the Materials are furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Materials.
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+ */
+
+
+#include "owfdebug.h"
+#ifdef DEBUG_LOG
+
+#include <pthread.h>
+
+#include "owfdebug.h"
+#include "owftypes.h"
+#include "owfdebug.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifndef OWF_DEBUG_PREFIX
+#define OWF_DEBUG_PREFIX "OWF: "
+#endif
+int xprintf(const char* aFormat, ...);
+
+/* This pair of macros are a standard trick 
+ * to convert the content of a macro into a string after expansion
+ * TOSTR causes the macro to be expanded, then TOSTR2 applies quotes.
+ * This is used because .MMP MACRO does not consistantly process macro value quotes.
+ */
+#define TOSTR2(x)    #x
+#define TOSTR(x)    TOSTR2(x)
+
+
+/* Filters debug messages based on filename or function name.
+ * @param symbol the file or function name string generated by predefined macros
+ * @param symlen the length of the string (calculated at compile-time)
+ * Defining DEBUG_LOG enables all log file output. Do this in the make or .MMP file
+ * The file output can be filtered by filename or by function name:
+ * Defining DEBUG_FUNCTION=fnname will filter for all functions STARTING with the name fnname
+ * Defining DEBUG_FILE=filename will filter for all functions ending with the name filename
+ * 
+ * These filters utilise the predefined macros __FILE__ and __FUNCTION__ which are defined in current standards,
+ * but may contain platform-specific features such as path names, or linkage decoration,
+ * so the filter-string may require some platform-specific tuning.
+ * 
+ * Note that use of #pragma message may also be platform-specific, and is only present in order to 
+ * print clues about the format of the __FILE__ and __FUNCTION__ macros.
+ */
+int  OWF_Debug_DoLog(const char* symbol,int symlen)
+    {
+#if defined(DEBUG_LOG_FILE)
+#pragma message ("DEBUG filter DEBUG_FILE= '" TOSTR(DEBUG_FILE) "' eg= '" __FILE__ "'")
+    if (symlen>=(sizeof(TOSTR(DEBUG_FILE))-1))
+        {
+        return strncmp( symbol+symlen-(sizeof(TOSTR(DEBUG_FILE))-1) , TOSTR(DEBUG_FILE) , sizeof(TOSTR(DEBUG_FILE))-1 )==0;
+        }
+    else
+        return 0;
+#elif defined(DEBUG_LOG_FUNCTION)
+#pragma message("DEBUG filter DEBUG_FUNCTION= '" TOSTR(DEBUG_FUNCTION) "' eg= '" __FUNCTION__ "'")
+    if (symlen>=(sizeof(TOSTR(DEBUG_FILE))-1))
+        {
+        return(strncmp(TOSTR(DEBUG_FUNCTION),symbol,sizeof(TOSTR(DEBUG_FUNCTION))-1)==0);
+        }
+    else
+        return 0;
+#else
+    (void)symbol;
+    (void)symlen;
+    return 1;
+#endif
+
+    }
+
+void OWF_Debug_Print(const char* format, ...)
+{    
+    va_list                 ap;
+    char                    __spager[512];
+
+    va_start(ap, format);
+    __spager[0] = 0;
+    vsnprintf(__spager, 511, format, ap);
+    xprintf("%s %s\n", OWF_DEBUG_PREFIX, __spager);
+    va_end(ap);
+}
+
+
+void OWF_Debug_Trace(const char* fmt, ...)
+{
+    fmt = fmt;
+}
+
+
+
+void OWF_Debug_TraceIndent()
+{
+}
+
+void OWF_Debug_TraceUndent()
+{
+}
+
+void OWF_Debug_TraceEnter(const char* func)
+{
+    if (func)
+    {
+        OWF_Debug_Trace("ENTER %s", func);
+    }
+    OWF_Debug_TraceIndent();
+}
+
+void OWF_Debug_TraceExit(const char* func)
+{
+    OWF_Debug_TraceUndent();
+    if (func)
+    {
+        OWF_Debug_Trace("EXIT %s", func);
+    }
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#else
+
+
+#endif /* DEBUG */