/*	SCCS Id: @(#)macsnd.c	3.1	92/11/28	*/
/* 	Copyright (c) 1992 by Jon Watte */
/* NetHack may be freely redistributed.  See license for details. */

/*
 * This file contains music playing code.
 *
 * If we were REALLY determinated, we would make the sound play
 * asynchronously, but I'll save that one for a rainy day...
 *
 * This may break A/UX, since it defines MAC but we need to
 * check that the toolbox is booted. I'll defer that one too.
 *
 * - h+ 921128
 */

#include "hack.h"
#include <Sound.h>
#include <Resources.h>

#define SND_BUFFER(s) (&(*s)[20])
#define SND_LEN(s) (GetHandleSize(s)-42)

void mac_speaker ( struct obj * instr , char * melody ) ;

void
mac_speaker ( struct obj * instr , char * melody )
{
	SndChannelPtr theChannel = NULL ;
	SndCommand theCmd ;
	Handle theSound ;
	unsigned char theName [ 32 ] ;
	char * n = ( char * ) & theName [ 1 ] ;
	int typ = instr -> otyp ;
	const char * actualn = OBJ_NAME ( objects [ typ ] ) ;

	/*
	 * First: are we in the library ?
	 *
	 */
	if ( flags . silent ) {

		return ;
	}

	/*
	 * Is this a known instrument ?
	 *
	 */
	strcpy ( n , actualn ) ;
	theName [ 0 ] = strlen ( n ) ;
	theSound = GetNamedResource ( 'snd ' , theName ) ;
	if ( ! theSound ) {

		return ;
	}
	HLock ( theSound ) ;

	/*
	 * Set up the synth
	 *
	 */
	if ( itworked ( SndNewChannel ( & theChannel , sampledSynth , initMono +
		initNoInterp , ( void * ) NULL ) ) ) {

		char midi_note [ ] = { 57 , 59 , 60 , 62 , 64 , 65 , 67 } ;

		short err ;
		short snd_len = SND_LEN ( theSound ) / 18 ;

		theCmd . cmd = soundCmd ;
		theCmd . param1 = 0 ;
		theCmd . param2 = SND_BUFFER ( theSound ) ;
		err = SndDoCommand ( theChannel , & theCmd , false ) ;

	/*
	 * We rack 'em up all in a row
	 * The mac will play them correctly and then end, since
	 * we do a sync close below.
	 *
	 */
		while ( * melody && ! err ) {

			while ( * melody > 'G' ) {

				* melody -= 8 ;
			}
			while ( * melody < 'A' ) {

				* melody += 8 ;
			}
			theCmd . cmd = freqDurationCmd ;
			theCmd . param1 = snd_len ;
			theCmd . param2 = midi_note [ * melody - 'A' ] ;
			err = SndDoCommand ( theChannel , & theCmd , false ) ;
			melody ++ ;
		}
		SndDisposeChannel ( theChannel , false ) ;
			/* Sync wait for completion */
		ReleaseResource ( theSound ) ;

		mustwork ( err ) ;
	}
}