add max bpp option to xrdp.ini

libxrdp/libxrdpinc.h

@@ -64,6 +64,7 @@ struct xrdp_client_info
   int brush_cache_code; /* 0 = no cache 1 = 8x8 standard cache
                            2 = arbitrary dimensions */
   char client_ip[256];
+  int max_bpp;
 };
 
 struct xrdp_brush

libxrdp/xrdp_rdp.c

@@ -117,6 +117,10 @@ xrdp_rdp_read_config(struct xrdp_client_info* client_info)
         client_info->channel_code = 1;
       }
     }
+    else if (g_strcasecmp(item, "max_bpp") == 0)
+    {
+      client_info->max_bpp = g_atoi(value);
+    }
   }
   list_delete(items);
   list_delete(values);
@@ -362,6 +366,13 @@ xrdp_rdp_parse_client_mcs_data(struct xrdp_rdp* self)
       self->client_info.bpp = 24;
       break;
   }
+  if (self->client_info.max_bpp > 0)
+  {
+    if (self->client_info.bpp > self->client_info.max_bpp)
+    {
+      self->client_info.bpp = self->client_info.max_bpp;
+    }
+  }
   p->p = p->data;
   DEBUG(("client width %d, client height %d bpp %d",
          self->client_info.width, self->client_info.height,

xrdp/xrdp.ini

@@ -5,6 +5,7 @@ bitmap_compression=yes
 port=3389
 crypt_level=low
 channel_code=1
+max_bpp=16
 #black=000000
 #grey=d6d3ce
 #dark_grey=808080
@@ -15,7 +16,6 @@ channel_code=1
 #green=00ff00
 #background=626c72
 
-
 [xrdp1]
 name=sesman-Xvnc
 lib=libvnc.so