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gst/gstvalue.c: Added flags serialize/deserialize/compare code.

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Original commit message from CVS:
* gst/gstvalue.c: (gst_value_compare_flags),
(gst_value_serialize_flags), (gst_value_deserialize_flags),
(_gst_value_initialize):
Added flags serialize/deserialize/compare code.
This commit is contained in:
Wim Taymans 2005-05-10 14:50:55 +00:00
parent b594010249
commit 33992f775b
2 changed files with 112 additions and 0 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2005-05-10 Wim Taymans <wim@fluendo.com>
* gst/gstvalue.c: (gst_value_compare_flags),
(gst_value_serialize_flags), (gst_value_deserialize_flags),
(_gst_value_initialize):
Added flags serialize/deserialize/compare code.
2005-05-09 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasetransform.c (gst_base_transform_proxy_getcaps):

105
gst/gstvalue.c
View file

@ -1435,6 +1435,109 @@ gst_value_deserialize_enum (GValue * dest, const char *s)
return TRUE;
}
/********
* flags *
********/
/* we just compare the value here */
static int
gst_value_compare_flags (const GValue * value1, const GValue * value2)
{
guint fl1, fl2;
GFlagsClass *klass1 =
(GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value1));
GFlagsClass *klass2 =
(GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value2));
g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
fl1 = g_value_get_flags (value1);
fl2 = g_value_get_flags (value2);
g_type_class_unref (klass1);
g_type_class_unref (klass2);
if (fl1 < fl2)
return GST_VALUE_LESS_THAN;
if (fl1 > fl2)
return GST_VALUE_GREATER_THAN;
return GST_VALUE_EQUAL;
}
/* the different flags are serialized separated with a + */
static char *
gst_value_serialize_flags (const GValue * value)
{
guint flags;
GFlagsValue *fl;
GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value));
gchar *result, *tmp;
gboolean first = TRUE;
g_return_val_if_fail (klass, NULL);
result = g_strdup ("");
flags = g_value_get_flags (value);
while (flags) {
fl = g_flags_get_first_value (klass, flags);
if (fl != NULL) {
tmp = g_strconcat (result, (first ? "" : "+"), fl->value_name, NULL);
g_free (result);
result = tmp;
first = FALSE;
}
/* clear flag */
flags &= ~fl->value;
}
g_type_class_unref (klass);
return result;
}
static gboolean
gst_value_deserialize_flags (GValue * dest, const char *s)
{
GFlagsValue *fl;
gchar *endptr = NULL;
GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (dest));
gchar **split;
guint flags;
gint i;
g_return_val_if_fail (klass, FALSE);
/* split into parts delimited with + */
split = g_strsplit (s, "+", 0);
flags = 0;
i = 0;
/* loop over each part */
while (split[i]) {
g_print ("check %s\n", split[i]);
if (!(fl = g_flags_get_value_by_name (klass, split[i]))) {
if (!(fl = g_flags_get_value_by_nick (klass, split[i]))) {
gint val = strtol (split[i], &endptr, 0);
g_print ("strtol %d\n", val);
/* just or numeric value */
if (endptr && *endptr == '\0') {
flags |= val;
}
}
}
if (fl) {
g_print ("value %d\n", fl->value);
flags |= fl->value;
}
i++;
}
g_strfreev (split);
g_print ("final value %d\n", flags);
g_type_class_unref (klass);
g_value_set_flags (dest, flags);
return TRUE;
}
/*********
* union *
*********/
@ -3054,6 +3157,8 @@ _gst_value_initialize (void)
REGISTER_SERIALIZATION (G_TYPE_BOOLEAN, boolean);
REGISTER_SERIALIZATION (G_TYPE_ENUM, enum);
REGISTER_SERIALIZATION (G_TYPE_FLAGS, flags);
REGISTER_SERIALIZATION (G_TYPE_INT, int);
REGISTER_SERIALIZATION (G_TYPE_INT64, int64);