Added a new property for the rfb version

Original commit message from CVS:
Added a new property for the rfb version

gst/librfb/gstrfbsrc.c

@@ -35,6 +35,7 @@ enum
   ARG_0,
   ARG_HOST,
   ARG_PORT,
+  ARG_VERSION,
 };
 
 #define RGB332_R(x)  ((((x)&0x07) * 0x124)>>3)
@@ -116,6 +117,9 @@ gst_rfb_src_class_init (GstRfbSrcClass * klass)
   g_object_class_install_property (gobject_class, ARG_PORT,
       g_param_spec_int ("port", "Port", "Port",
           1, 65535, 5900, G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class, ARG_VERSION,
+      g_param_spec_string ("version", "RFB protocol version",
+          "RFB protocol version", "3.3", G_PARAM_READWRITE));
 
   gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_rfb_src_start);
   gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_rfb_src_stop);
@@ -136,6 +140,8 @@ gst_rfb_src_init (GstRfbSrc * src, GstRfbSrcClass * klass)
 
   src->host = g_strdup ("127.0.0.1");
   src->port = 5900;
+  src->version_major = 3;
+  src->version_minor = 3;
 }
 
 static void
@@ -148,6 +154,49 @@ gst_rfb_src_dispose (GObject * object)
   G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
+static void
+gst_rfb_property_set_version (GstRfbSrc * src, gchar * value)
+{
+  g_return_if_fail (src != NULL);
+  g_return_if_fail (value != NULL);
+
+  gchar *major = g_strdup (value);
+  gchar *minor = g_strrstr (value, ".");
+
+  g_return_if_fail (minor != NULL);
+
+  *minor++ = 0;
+
+  g_return_if_fail (g_ascii_isdigit (*major) == TRUE);
+  g_return_if_fail (g_ascii_isdigit (*minor) == TRUE);
+
+  src->version_major = g_ascii_digit_value (*major);
+  src->version_minor = g_ascii_digit_value (*minor);
+
+  GST_DEBUG ("Version major : %d", src->version_major);
+  GST_DEBUG ("Version minor : %d", src->version_minor);
+
+  g_free (major);
+  g_free (value);
+}
+
+static gchar *
+gst_rfb_property_get_version (GstRfbSrc * src)
+{
+  gchar *version = g_malloc (8);
+  gchar *major = g_strdup_printf ("%d", src->version_major);
+  gchar *minor = g_strdup_printf ("%d", src->version_minor);
+
+  g_stpcpy (version, major);
+  g_strlcat (version, ".", 8);
+  g_strlcat (version, minor, 8);
+
+  g_free (major);
+  g_free (minor);
+
+  return version;
+}
+
 static void
 gst_rfb_src_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec)
@@ -161,6 +210,9 @@ gst_rfb_src_set_property (GObject * object, guint prop_id,
     case ARG_PORT:
       src->port = g_value_get_int (value);
       break;
+    case ARG_VERSION:
+      gst_rfb_property_set_version (src, g_strdup (g_value_get_string (value)));
+      break;
     default:
       break;
   }
@@ -171,6 +223,7 @@ gst_rfb_src_get_property (GObject * object, guint prop_id,
     GValue * value, GParamSpec * pspec)
 {
   GstRfbSrc *src = GST_RFB_SRC (object);
+  gchar *version;
 
   switch (prop_id) {
     case ARG_HOST:
@@ -179,6 +232,11 @@ gst_rfb_src_get_property (GObject * object, guint prop_id,
     case ARG_PORT:
       g_value_set_int (value, src->port);
       break;
+    case ARG_VERSION:
+      version = gst_rfb_property_get_version (src);
+      g_value_set_string (value, version);
+      g_free (version);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;

gst/librfb/gstrfbsrc.h

@@ -60,6 +60,11 @@ struct _GstRfbSrc
   gboolean inter;
 
   guint button_mask;
+
+  /* protocol version */
+  guint version_major;
+  guint version_minor;
+
 };
 
 GType gst_rfb_src_get_type (void);

gst/librfb/rfbdecoder.c

@@ -2,7 +2,7 @@
 #include "config.h"
 #endif
 
-#include "rfbdecoder.h"
+#include "gst/gst.h"
 
 #include <rfb.h>
 #include <unistd.h>
@@ -20,6 +20,9 @@
 #define RFB_SET_UINT16(ptr, val) (*(guint16 *)(ptr) = GUINT16_TO_BE (val))
 #define RFB_SET_UINT8(ptr, val) (*(guint8 *)(ptr) = val)
 
+GST_DEBUG_CATEGORY_STATIC (rfbdecoder_debug);
+#define GST_CAT_DEFAULT rfbdecoder_debug
+
 #if 0
 struct _RfbSocketPrivate
 {
@@ -109,17 +112,28 @@ rfb_decoder_connect_tcp (RfbDecoder * decoder, gchar * addr, guint port)
   return TRUE;
 }
 
+/**
+ * rfb_decoder_iterate:
+ * @decoder: The rfb context
+ *
+ * Initializes the connection with the rfb server
+ *
+ * Returns: TRUE if initialization was succesfull, FALSE on fail.
+ */
 gboolean
 rfb_decoder_iterate (RfbDecoder * decoder)
 {
+  GST_DEBUG_CATEGORY_INIT (rfbdecoder_debug, "rfbdecoder", 0, "Rfb source");
+
   g_return_val_if_fail (decoder != NULL, FALSE);
   g_return_val_if_fail (decoder->fd != -1, FALSE);
 
   if (decoder->state == NULL) {
+    GST_DEBUG ("First iteration: set state to -> wait for protocol version");
     decoder->state = rfb_decoder_state_wait_for_protocol_version;
   }
-  // g_print ("iterating...\n");
 
+  GST_DEBUG ("Executing next state in initialization");
   return decoder->state (decoder);
 }
 
@@ -185,6 +199,13 @@ rfb_decoder_send_pointer_event (RfbDecoder * decoder,
   rfb_decoder_send (decoder, data, 6);
 }
 
+/**
+ * rfb_decoder_state_wait_for_protocol_version:
+ *
+ * Negotiate the rfb version used
+ *
+ * \TODO Support for versions 3.7 and 3.8
+ */
 static gboolean
 rfb_decoder_state_wait_for_protocol_version (RfbDecoder * decoder)
 {
@@ -198,10 +219,32 @@ rfb_decoder_state_wait_for_protocol_version (RfbDecoder * decoder)
 
   data = buffer->data;
 
-  g_assert (memcmp (buffer->data, "RFB 003.00", 10) == 0);
-  // g_print ("\"%.11s\"\n", buffer->data);
+  g_return_val_if_fail (memcmp (buffer->data, "RFB 003.00", 10) == 0, FALSE);
+  g_return_val_if_fail (*(buffer->data + 11) == 0x0a, FALSE);
+
+  GST_DEBUG ("\"%.11s\"", buffer->data);
+  *(buffer->data + 7) = 0x00;
+  *(buffer->data + 11) = 0x00;
+  decoder->protocol_major = atoi ((char *) (buffer->data + 4));
+  decoder->protocol_minor = atoi ((char *) (buffer->data + 8));
+  GST_DEBUG ("Major version : %d", decoder->protocol_major);
+  GST_DEBUG ("Minor version : %d", decoder->protocol_minor);
   rfb_buffer_free (buffer);
 
+  if (decoder->protocol_major != 3) {
+    GST_INFO
+        ("A major protocol version of %d is not supported, falling back to 3",
+        decoder->protocol_major);
+    decoder->protocol_major = 3;
+  }
+  switch (decoder->protocol_minor) {
+    case 3:
+      break;
+    default:
+      GST_INFO ("Minor version %d is not supported, using 3",
+          decoder->protocol_minor);
+      decoder->protocol_minor = 3;
+  }
   rfb_decoder_send (decoder, (guint8 *) "RFB 003.003\n", 12);
 
   decoder->state = rfb_decoder_state_wait_for_security;

gst/librfb/rfbdecoder.h

@@ -31,8 +31,8 @@ struct _RfbDecoder
   /* readable properties */
   gboolean inited;
 
-  gint protocol_major;
-  gint protocol_minor;
+  guint protocol_major;
+  guint protocol_minor;
   guint security_type;
 
   guint width;