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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@18259 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 73 insertions, 13 deletions

diff --git a/m_struct.h b/m_struct.h
index e698dca211..3753f8a3b7 100644
--- a/m_struct.h
+++ b/m_struct.h
@@ -1,48 +1,108 @@
 #ifndef _M_STRUCT_H
 #define _M_STRUCT_H
 
-///////////////////// A struct setter ////////////////////////
+/// \defgroup OptionsStruct Options struct
+/// \ingroup Options
+/// An API to manipulate structs using m_option.
+///@{
+
+/// \file m_struct.h
 
 struct m_option;
 
 /// Struct definition
 typedef struct m_struct_st {
-  char* name; // For error msg and debuging
-  unsigned int size; // size of the whole struct
-  void* defaults; // Pointer to a struct filled with the default settings
-  struct m_option* fields; // settable fields
+  /// For error msg and debuging
+  char* name;
+  /// size of the whole struct
+  unsigned int size;
+  /// Pointer to a struct filled with the default settings
+  void* defaults;
+  /// Field list.
+  /** The p field of the \ref m_option struct must contain the offset
+   *  of the member in the struct (use M_ST_OFF macro for this).
+   */
+  struct m_option* fields;
 } m_struct_t;
 
-// Note : the p field of the m_option_t struct must contain the offset
-// of the member in the struct (use M_ST_OFF macro for this).
 
 // From glib.h (modified ;-)
+
+/// Get the offset of a struct field.
+/** \param struct_type Struct type.
+ *  \param member Name of the field.
+ *  \return The offset of the field in bytes.
+ */
 #define M_ST_OFF(struct_type, member)    \
     ((void*) &((struct_type*) 0)->member)
+
+/// Get a pointer to a struct field.
+/** \param struct_p Pointer to the struct.
+ *  \param struct_offset Offset of the field in the struct.
+ *  \return Pointer to the struct field.
+ */
 #define M_ST_MB_P(struct_p, struct_offset)   \
     ((void*) (struct_p) + (unsigned long) (struct_offset))
+
+/// Acces a struct field at a given offset.
+/** \param member_type Type of the field.
+ *  \param struct_p Pointer to the struct.
+ *  \param struct_offset Offset of the field in the struct.
+ *  \return The struct field at the given offset.
+ */
 #define M_ST_MB(member_type, struct_p, struct_offset)   \
     (*(member_type*) M_ST_MB_P ((struct_p), (struct_offset)))
 
 
 
-/// Allocate the struct and set it to the defaults
+/// Allocate the struct and set it to the defaults.
+/** \param st Struct definition.
+ *  \return The newly allocated object set to default.
+ */
 void*
 m_struct_alloc(m_struct_t* st);
-/// Set a field of the struct
+
+/// Set a field of the struct.
+/** \param st Struct definition.
+ *  \param obj Pointer to the struct to set.
+ *  \param field Name of the field to set.
+ *  \param param New value of the field.
+ *  \return 0 on error, 1 on success.
+ */
 int
 m_struct_set(m_struct_t* st, void* obj, char* field, char* param);
-/// Reset a field (or all if field == NULL) to defaults
+
+/// Reset a field (or all if field == NULL) to defaults.
+/** \param st Struct definiton.
+ *  \param obj Pointer to the struct to set.
+ *  \param field Name of the field to reset, if NULL all fields are reseted.
+ */
 void
 m_struct_reset(m_struct_t* st, void* obj, char* field);
-/// Create a copy of an existing struct
+
+/// Create a copy of an existing struct.
+/** \param st Struct definiton.
+ *  \param obj Pointer to the struct to copy.
+ *  \return Newly allocated copy of obj.
+ */
 void*
 m_struct_copy(m_struct_t* st, void* obj);
-/// Free an allocated struct
+
+/// Free an allocated struct.
+/** \param st Struct definiton.
+ *  \param obj Pointer to the struct to copy.
+ */
 void
 m_struct_free(m_struct_t* st, void* obj);
-/// Get a field description
+
+/// Get a field description.
+/** \param st Struct definiton.
+ *  \param f Name of the field.
+ *  \return The \ref m_option struct describing the field or NULL if not found.
+ */
 struct m_option*
 m_struct_get_field(m_struct_t* st,char* f);
 
+///@}
+
 #endif /* _M_STRUCT_H */