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/*****************************************************************************
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* rsc_files.h: resources files manipulation functions
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* (c)1999 VideoLAN
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*****************************************************************************
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* This library describe a general format used to store 'resources'. Resources
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* can be anything, including pictures, audio streams, and so on.
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*****************************************************************************
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* Requires:
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* config.h
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* common.h
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*****************************************************************************/
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/*****************************************************************************
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* Constants
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*****************************************************************************/
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/* Maximum length of a resource name (not including the final '\0') - this
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* constant should not be changed without extreme care */
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#define RESOURCE_MAX_NAME 32
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/*****************************************************************************
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* resource_descriptor_t: resource descriptor
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*****************************************************************************
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* This type describe an entry in the resource table.
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*****************************************************************************/
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typedef struct
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{
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char psz_name[RESOURCE_MAX_NAME + 1]; /* name */
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u16 i_type; /* type */
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u64 i_offset; /* data offset */
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u64 i_size; /* data size */
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} resource_descriptor_t;
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/* Resources types */
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#define EMPTY_RESOURCE 0 /* empty place in table */
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#define PICTURE_RESOURCE 10 /* native video picture */
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/*****************************************************************************
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* resource_file_t: resource file descriptor
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*****************************************************************************
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* This type describes a resource file and store it's resources table. It can
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* be used through the *Resource functions, or directly with the i_file field.
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*****************************************************************************/
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typedef struct
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{
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/* File informations */
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int i_file; /* file descriptor */
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int i_type; /* file type */
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boolean_t b_up_to_date; /* is file up to date ? */
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boolean_t b_read_only; /* read-only mode */
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/* Resources table */
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int i_size; /* table size */
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resource_descriptor_t * p_resource; /* resources table */
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} resource_file_t;
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/* Resources files types */
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#define VLC_RESOURCE_FILE 0 /* VideoLAN Client resource file */
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/*****************************************************************************
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* Prototypes
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*****************************************************************************/
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resource_file_t * CreateResourceFile ( char *psz_filename, int i_type, int i_size, int i_mode );
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resource_file_t * OpenResourceFile ( char *psz_filename, int i_type, int i_flags );
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int UpdateResourceFile ( resource_file_t *p_file );
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int CloseResourceFile ( resource_file_t *p_file );
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int SeekResource ( resource_file_t *p_file, char *psz_name, int i_type );
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int ReadResource ( resource_file_t *p_file, char *psz_name, int i_type,
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size_t max_size, byte_t *p_data );
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int WriteResource ( resource_file_t *p_file, char *psz_name, int i_type,
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size_t size, byte_t *p_data );
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