Index: src/FTGlyph/FTPixmapGlyph.cpp
===================================================================
--- src/FTGlyph/FTPixmapGlyph.cpp	(revision 1224)
+++ src/FTGlyph/FTPixmapGlyph.cpp	(working copy)
@@ -91,14 +91,28 @@
         unsigned char* dest = data + ((destHeight - 1) * destWidth * 2);
         size_t destStep = destWidth * 2 * 2;
 
-        for(int y = 0; y < srcHeight; ++y)
-        {
-            for(int x = 0; x < srcWidth; ++x)
-            {
-                *dest++ = static_cast<unsigned char>(255);
-                *dest++ = *src++;
-            }
-            dest -= destStep;
+	if (FT_PIXEL_MODE_MONO == bitmap.pixel_mode) {
+	    // convert the bitmap to gray map
+	    for(int y = 0; y < srcHeight; ++y)
+	    {
+		for(int x = 0; x < srcWidth; ++x)
+		{
+		    *dest++ = static_cast<unsigned char>(255);
+		    *dest++ = static_cast<unsigned char>((src[x >> 3] & (128 >> (x & 7))) ? 255 : 0);
+		}
+		dest -= destStep;
+		src += bitmap.pitch;
+	    }
+	} else {	  
+	    for(int y = 0; y < srcHeight; ++y)
+	    {
+		for(int x = 0; x < srcWidth; ++x)
+		{
+		    *dest++ = static_cast<unsigned char>(255);
+		    *dest++ = *src++;
+		}
+		dest -= destStep;
+	    }
         }
 
         destHeight = srcHeight;