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From:
Jag Talon <jag@aangat.lahat.computer>
Subject:
Re: emulators/minivmac: add sndio for sound
To:
George Koehler <kernigh@gmail.com>, ports@openbsd.org
Date:
Mon, 22 Jul 2024 19:51:28 -0400

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Ok I downloaded https://macintoshgarden.org/games/the-colony and it
played wonderfully.

When removing the audio device, it says, "Cannot open sndio." but it
still works so for me! When I get to my i386 I hope to test it there as
well.

On Mon, 2024-07-22 at 19:26 -0400, Jag Talon wrote:
> This is amazing! I tested it on amd64, and I heard the bootup beep
> and
> also the sample "How are you?" audio in HyperCard.
> 
> I haven't found longer audio to test it with perhaps I can run a game
> inside it soon.
> 
> Thank you so much!
> 
> On Mon, 2024-07-22 at 00:31 -0400, George Koehler wrote:
> > This diff adds sound to Mini vMac, with files/SGLUSNIO.h using
> > sndio.
> > 
> > The emulator passes sound samples via MySound_BeginWrite and
> > MySound_EndWrite to the X11 glue OSGLUXWN.c, which collects them
> > into
> > a ring of 16 buffers of 512 samples each.  The other sound glues
> > (for
> > ALSA and /dev/dsp) use non-blocking writes in a weird way.  I tried
> > to
> > use non-blocking writes for sndio, but that caused the sound to go
> > silent after 3 seconds (at the 3rd call to MySound_SecondNotify).
> > This diff uses blocking writes.
> > 
> > I have not contacted upstream.  When I do, I plan to change the
> > license of files/GLUSNIO.h to Mini vMac's license.
> > 
> > Does it work?  Is it ok to commit?
> > --gkoehler
> > 
> > Index: Makefile
> > ===================================================================
> > RCS file: /cvs/ports/emulators/minivmac/Makefile,v
> > diff -u -p -r1.1.1.1 Makefile
> > --- Makefile	18 Jul 2024 01:58:15 -0000	1.1.1.1
> > +++ Makefile	22 Jul 2024 03:45:27 -0000
> > @@ -2,6 +2,7 @@ ONLY_FOR_ARCHS =	i386 amd64 powerpc
> >  
> >  COMMENT =		early macintosh emulator
> >  V =			36.04
> > +REVISION =		0
> >  DISTNAME =		minivmac-${V}
> >  
> >  CATEGORIES =		emulators
> > @@ -10,7 +11,7 @@ HOMEPAGE
> > = 		https://gryphel.com/c/miniv
> >  
> >  MAINTAINER =		Jag Talon <jag@aangat.lahat.computer>
> >  
> > -WANTLIB =		X11 c
> > +WANTLIB =		X11 c sndio
> >  
> >  # GPLv2
> >  PERMIT_PACKAGE =	Yes
> > @@ -31,6 +32,9 @@ ALL_TARGET =		minivmac
> >  SETUP_FLAGS-amd64 = 	-t ob64
> >  SETUP_FLAGS-i386 = 	-t obsd
> >  SETUP_FLAGS-powerpc = 	-t obsd -cpu ppc
> > +
> > +post-extract:
> > +	cp ${FILESDIR}/SGLUSNIO.h ${WRKSRC}/src
> >  
> >  do-gen:
> >  	cd ${WRKSRC}; cc setup/tool.c -o setup_t && \
> > Index: files/SGLUSNIO.h
> > ===================================================================
> > RCS file: files/SGLUSNIO.h
> > diff -N files/SGLUSNIO.h
> > --- /dev/null	1 Jan 1970 00:00:00 -0000
> > +++ files/SGLUSNIO.h	22 Jul 2024 03:45:27 -0000
> > @@ -0,0 +1,125 @@
> > +/*
> > + * Copyright (c) 2024 George Koehler <gkoehler@openbsd.org>
> > + *
> > + * Permission to use, copy, modify, and distribute this software
> > for
> > any
> > + * purpose with or without fee is hereby granted, provided that
> > the
> > above
> > + * copyright notice and this permission notice appear in all
> > copies.
> > + *
> > + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
> > WARRANTIES
> > + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
> > OF
> > + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
> > LIABLE FOR
> > + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
> > DAMAGES
> > + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
> > IN AN
> > + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
> > ARISING
> > OUT OF
> > + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> > + */
> > +
> > +/*
> > +	Sound GLUe for SNdIO, https://man.openbsd.org/sio_open.3
> > +*/
> > +
> > +LOCALVAR struct sio_hdl *audio_hdl;
> > +LOCALVAR int audio_samples_pending;
> > +
> > +LOCALPROC MySound_Moved(void *arg, int delta)
> > +{
> > +	audio_samples_pending -= delta;
> > +}
> > +
> > +LOCALPROC MySound_Start(void)
> > +{
> > +	if (audio_hdl) {
> > +		MySound_Start0();
> > +		audio_samples_pending = 0;
> > +		sio_start(audio_hdl);
> > +	}
> > +}
> > +
> > +LOCALPROC MySound_Stop(void)
> > +{
> > +	if (audio_hdl) {
> > +		sio_flush(audio_hdl);
> > +	}
> > +}
> > +
> > +LOCALFUNC blnr MySound_Init(void)
> > +{
> > +	struct sio_par par;
> > +
> > +	audio_hdl = sio_open(SIO_DEVANY, SIO_PLAY, 0 /* blocking
> > */);
> > +	if (audio_hdl == NULL) {
> > +		fprintf(stderr, "Cannot open sndio.\n");
> > +		return trueblnr;
> > +	}
> > +
> > +	sio_initpar(&par);
> > +	par.bits = 1 << kLn2SoundSampSz;
> > +	par.sig = 0; /* unsigned samples */
> > +	par.le = SIO_LE_NATIVE; /* byte order */
> > +	par.pchan = 1;
> > +	par.rate = SOUND_SAMPLERATE;
> > +	par.round = kOneBuffLen;
> > +	if (!sio_setpar(audio_hdl, &par) ||
> > +		!sio_getpar(audio_hdl, &par) ||
> > +		par.bits != 1 << kLn2SoundSampSz || par.sig != 0
> > ||
> > +		par.le != SIO_LE_NATIVE || par.pchan != 1 ||
> > +		par.rate < SOUND_SAMPLERATE * 995 / 1000 ||
> > +		par.rate > SOUND_SAMPLERATE * 1005 / 1000)
> > +	{
> > +		fprintf(stderr, "Cannot set sndio parameters.\n");
> > +		goto init_error;
> > +	}
> > +
> > +	sio_onmove(audio_hdl, MySound_Moved, NULL);
> > +	return trueblnr;
> > +
> > +init_error:
> > +	sio_close(audio_hdl);
> > +	audio_hdl = NULL;
> > +	return trueblnr;
> > +}
> > +
> > +LOCALPROC MySound_UnInit(void)
> > +{
> > +	if (audio_hdl) {
> > +		sio_close(audio_hdl);
> > +		audio_hdl = NULL;
> > +	}
> > +}
> > +
> > +GLOBALOSGLUPROC MySound_EndWrite(ui4r actL)
> > +{
> > +	tpSoundSamp PlayPtr;
> > +	ui4b TotPendBuffs;
> > +
> > +	if (!MySound_EndWrite0(actL) || !audio_hdl) {
> > +		return;
> > +	}
> > +
> > +	/* sio_write will call MySound_Moved. */
> > +	audio_samples_pending += kOneBuffLen;
> > +
> > +	/*
> > +		Play one buffer (of kOneBuffSz bytes).
> > +		Don't leave part of the buffer for later.
> > +	*/
> > +	PlayPtr = TheSoundBuffer + (ThePlayOffset & kAllBuffMask);
> > +	if (sio_write(audio_hdl, PlayPtr, kOneBuffSz) !=
> > kOneBuffSz)
> > {
> > +		fprintf(stderr, "Error from sndio playing
> > audio!\n");
> > +		sio_close(audio_hdl);
> > +		audio_hdl = NULL;
> > +	}
> > +	ThePlayOffset += kOneBuffLen;
> > +
> > +	TotPendBuffs = audio_samples_pending >> kLnOneBuffLen;
> > +	if (TotPendBuffs < MinFilledSoundBuffs) {
> > +		MinFilledSoundBuffs = TotPendBuffs;
> > +	}
> > +}
> > +
> > +LOCALPROC MySound_SecondNotify(void)
> > +{
> > +	if (audio_hdl) {
> > +		MySound_SecondNotify0();
> > +	}
> > +}
> > Index: patches/patch-setup_SPBLDOPT_i
> > ===================================================================
> > RCS file: patches/patch-setup_SPBLDOPT_i
> > diff -N patches/patch-setup_SPBLDOPT_i
> > --- /dev/null	1 Jan 1970 00:00:00 -0000
> > +++ patches/patch-setup_SPBLDOPT_i	22 Jul 2024 03:45:27 -0000
> > @@ -0,0 +1,42 @@
> > +- enable sndio on OpenBSD
> > +
> > +Index: setup/SPBLDOPT.i
> > +--- setup/SPBLDOPT.i.orig
> > ++++ setup/SPBLDOPT.i
> > +@@ -542,7 +542,8 @@ LOCALFUNC blnr dfo_SoundEnabled(void)
> > + 		|| ((gbk_apifam_xwn == gbo_apifam)
> > + 			&& ((gbo_targfam == gbk_targfam_linx)
> > + 				|| (gbo_targfam ==
> > gbk_targfam_fbsd)
> > +-				|| (gbo_targfam ==
> > gbk_targfam_nbsd)));
> > ++				|| (gbo_targfam ==
> > gbk_targfam_nbsd)
> > ++				|| (gbo_targfam ==
> > gbk_targfam_obsd)));
> > + 
> > + 	return v;
> > + }
> > +@@ -568,6 +569,7 @@ enum {
> > + 	gbk_sndapi_none,
> > + 	gbk_sndapi_alsa,
> > + 	gbk_sndapi_ddsp,
> > ++	gbk_sndapi_sndio,
> > + 	kNumSndApiLevels
> > + };
> > + 
> > +@@ -594,6 +596,9 @@ LOCALFUNC char * GetSndApiName(int i)
> > + 		case gbk_sndapi_ddsp:
> > + 			s = "ddsp";
> > + 			break;
> > ++		case gbk_sndapi_sndio:
> > ++			s = "sndio";
> > ++			break;
> > + 		default:
> > + 			s = "(unknown sound api)";
> > + 			break;
> > +@@ -617,6 +622,8 @@ LOCALFUNC int dfo_sndapi(void)
> > + 		v = gbk_sndapi_none;
> > + 	} else if (gbo_targfam == gbk_targfam_linx) {
> > + 		v = gbk_sndapi_alsa;
> > ++	} else if (gbo_targfam == gbk_targfam_obsd) {
> > ++		v = gbk_sndapi_sndio;
> > + 	} else {
> > + 		v = gbk_sndapi_ddsp;
> > + 	}
> > Index: patches/patch-setup_SPFILDEF_i
> > ===================================================================
> > RCS file: patches/patch-setup_SPFILDEF_i
> > diff -N patches/patch-setup_SPFILDEF_i
> > --- /dev/null	1 Jan 1970 00:00:00 -0000
> > +++ patches/patch-setup_SPFILDEF_i	22 Jul 2024 03:45:27 -0000
> > @@ -0,0 +1,15 @@
> > +- add sndio
> > +
> > +Index: setup/SPFILDEF.i
> > +--- setup/SPFILDEF.i.orig
> > ++++ setup/SPFILDEF.i
> > +@@ -88,6 +88,9 @@ static void DoMYOSGLUEdepends(tDoOneDepends p)
> > + 				case gbk_sndapi_ddsp:
> > + 					s = "SGLUDDSP.h";
> > + 					break;
> > ++				case gbk_sndapi_sndio:
> > ++					s = "SGLUSNIO.h";
> > ++					break;
> > + 			}
> > + 
> > + 			if (nullpr != s) {
> > Index: patches/patch-setup_SPOTHRCF_i
> > ===================================================================
> > RCS file: patches/patch-setup_SPOTHRCF_i
> > diff -N patches/patch-setup_SPOTHRCF_i
> > --- /dev/null	1 Jan 1970 00:00:00 -0000
> > +++ patches/patch-setup_SPOTHRCF_i	22 Jul 2024 03:45:27 -0000
> > @@ -0,0 +1,15 @@
> > +- add sndio
> > +
> > +Index: setup/SPOTHRCF.i
> > +--- setup/SPOTHRCF.i.orig
> > ++++ setup/SPOTHRCF.i
> > +@@ -555,6 +555,9 @@ LOCALPROC WriteAppSOUNDGLUcontents(void)
> > + 		case gbk_sndapi_ddsp:
> > + 			s = "DDSP";
> > + 			break;
> > ++		case gbk_sndapi_sndio:
> > ++			s = "SNIO";
> > ++			break;
> > + 		default:
> > + 			s = "???";
> > + 			break;
> > Index: patches/patch-setup_WRBGCFLS_i
> > ===================================================================
> > RCS file: patches/patch-setup_WRBGCFLS_i
> > diff -N patches/patch-setup_WRBGCFLS_i
> > --- /dev/null	1 Jan 1970 00:00:00 -0000
> > +++ patches/patch-setup_WRBGCFLS_i	22 Jul 2024 03:45:27 -0000
> > @@ -0,0 +1,14 @@
> > +- add sndio
> > +
> > +Index: setup/WRBGCFLS.i
> > +--- setup/WRBGCFLS.i.orig
> > ++++ setup/WRBGCFLS.i
> > +@@ -357,6 +357,8 @@ LOCALPROC WriteBashGccMakeFile(void)
> > + 					{
> > + 						WriteCStrToDestFil
> > e(
> > " -lossaudio");
> > + 					}
> > ++				} else if (gbk_sndapi_sndio ==
> > gbo_sndapi) {
> > ++					WriteCStrToDestFile(" -
> > lsndio");
> > + 				}
> > + #endif
> > + #if 0
> > Index: patches/patch-setup_WRCNFGAP_i
> > ===================================================================
> > RCS file: patches/patch-setup_WRCNFGAP_i
> > diff -N patches/patch-setup_WRCNFGAP_i
> > --- /dev/null	1 Jan 1970 00:00:00 -0000
> > +++ patches/patch-setup_WRCNFGAP_i	22 Jul 2024 03:45:27 -0000
> > @@ -0,0 +1,15 @@
> > +- add sndio
> > +
> > +Index: setup/WRCNFGAP.i
> > +--- setup/WRCNFGAP.i.orig
> > ++++ setup/WRCNFGAP.i
> > +@@ -194,6 +194,9 @@ LOCALPROC WriteCommonCNFGRAPIContents(void)
> > + 						WriteDestFileLn("#
> > in
> > clude <sys/soundcard.h>");
> > + 					}
> > + 					break;
> > ++				case gbk_sndapi_sndio:
> > ++					WriteDestFileLn("#include
> > <sndio.h>");
> > ++					break;
> > + 				default:
> > + 					break;
> > + 			}
> > 
> 

-- 
he/him
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