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stuff

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This commit is contained in:
John Cupitt 2010-02-03 21:30:13 +00:00
parent 63c6241c0e
commit e113f7a983
1 changed files with 25 additions and 1 deletions
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26
libvips/format/format.c
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@ -65,6 +65,30 @@
* RAW and one that wraps libMagick. * RAW and one that wraps libMagick.
*/ */
/**
* VipsFormat:
*
* Actually, we never make %VipsFormat objects, we just use virtual methods on
* the class object. It is defined as:
*
* |[
* typedef struct _VipsFormatClass {
* VipsObjectClass parent_class;
*
* gboolean (*is_a)( const char * );
* int (*header)( const char *, IMAGE * );
* int (*load)( const char *, IMAGE * );
* int (*save)( IMAGE *, const char * );
* VipsFormatFlags (*get_flags)( const char * );
* int priority;
* const char **suffs;
* } VipsFormatClass;
* ]|
*
* Subclasses need to implement at least load() or save().
*
*/
/* To iterate over supported formats, we build a temp list of subclasses of /* To iterate over supported formats, we build a temp list of subclasses of
* VipsFormat, sort by priority, iterate, and free. * VipsFormat, sort by priority, iterate, and free.
*/ */
@ -91,7 +115,7 @@ format_compare( VipsFormatClass *a, VipsFormatClass *b )
* @a: user data * @a: user data
* @b: user data * @b: user data
* *
* Apply a function to every #VipsFormatClass that VIPS knows about. Formats * Apply a function to every %VipsFormatClass that VIPS knows about. Formats
* are presented to the function in priority order. * are presented to the function in priority order.
* *
* Like all VIPS map functions, if @fn returns %NULL, iteration continues. If * Like all VIPS map functions, if @fn returns %NULL, iteration continues. If