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#ifndef _IPXE_PIXBUF_H
#define _IPXE_PIXBUF_H
/** @file
*
* Pixel buffer
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <stddef.h>
#include <ipxe/refcnt.h>
#include <ipxe/uaccess.h>
/** A pixel buffer */
struct pixel_buffer {
/** Reference count */
struct refcnt refcnt;
/** Width */
unsigned int width;
/** Height */
unsigned int height;
/** 32-bit (8:8:8:8) xRGB pixel data, in host-endian order */
userptr_t data;
/** Total length */
size_t len;
};
/**
* Get reference to pixel buffer
*
* @v pixbuf Pixel buffer
* @ret pixbuf Pixel buffer
*/
static inline __attribute__ (( always_inline )) struct pixel_buffer *
pixbuf_get ( struct pixel_buffer *pixbuf ) {
ref_get ( &pixbuf->refcnt );
return pixbuf;
}
/**
* Drop reference to pixel buffer
*
* @v pixbuf Pixel buffer
*/
static inline __attribute__ (( always_inline )) void
pixbuf_put ( struct pixel_buffer *pixbuf ) {
ref_put ( &pixbuf->refcnt );
}
extern struct pixel_buffer * alloc_pixbuf ( unsigned int width,
unsigned int height );
#endif /* _IPXE_PIXBUF_H */
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