#include "general.h"


/* Prototype */
int16 init_mfdb( MFDB *bm, int16 width, int16 height, int16 planes);
void delete_mfdb( MFDB *bm, int16 nbr);


/*==================================================================================*
 * int16 init_mfdb:																	*
 *				fit a MFDB with the parameters suppplied.							*
 *----------------------------------------------------------------------------------*
 * input:																			*
 * 		bm		-> 	The MFDB to fit.												*
 * 		width	-> 	Image's width. 													*
 * 		height	-> 	Image's height.										 			*
 * 		planes	->	Screen planes or 1 if the image is monochrome.					*
 *----------------------------------------------------------------------------------*
 * returns: 																		*	
 *		'0' if error or the memory size allocated.									*
 *==================================================================================*/
int16 init_mfdb( MFDB *bm, int16 width, int16 height, int16 planes)
{
	uint32 length;

	bm->fd_w 		= width;
	bm->fd_h 		= height;
	bm->fd_wdwidth	= ( width >> 4) + (( width % 16) != 0);
	bm->fd_stand 	= 0;
	bm->fd_nplanes 	= planes;
	bm->fd_r1      	= 0;
	bm->fd_r2      	= 0;
	bm->fd_r3	  	= 0;

	length			= (( (( uint32)bm->fd_wdwidth << 1 ) * ( uint32)bm->fd_nplanes) * ( uint32)bm->fd_h) + 256L;
	bm->fd_addr 	= gmalloc( length);

	if( bm->fd_addr)
		return( 1);
	
	bm->fd_addr = NULL;

	return ( 0);
}


/*==================================================================================*
 * int16 delete_mfdb:																*
 *		free the data of MFDB struct.												*
 *----------------------------------------------------------------------------------*
 * input:																			*
 * 		bm		-> 	pointer to the MFDB to delete.									*
 * 		nbr		-> 	The number of MFDB struct. to delete.							*
 *----------------------------------------------------------------------------------*
 * returns: 																		*	
 *		--																			*
 *==================================================================================*/
void delete_mfdb( MFDB *bm, int16 nbr)
{
	register int16 i;

	if(( nbr == 0) || ( bm == NULL))
		return;

	for ( i = 0; i < nbr; i++)
	{
		if ( bm[i].fd_addr == NULL)
			continue;
		
		gfree( bm[i].fd_addr); 
	}

	gfree( bm);
}