1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
4  * Copyright (c) 2008-2009 Ariff Abdullah <ariff@FreeBSD.org>
59 		src -= PCM_##BIT##_BPS;					\
60 		dst -= PCM_##BIT##_BPS;					\
61 		count -= PCM_##BIT##_BPS;				\
94 	feed_mixer_t mix;  member
144 	if (f->desc->in != f->desc->out)  in feed_mixer_init()
148 		if (AFMT_ENCODING(f->desc->in) ==  in feed_mixer_init()
150 		    	f->data =  in feed_mixer_init()
151 			    FEEDMIXER_DATA(i, AFMT_CHANNEL(f->desc->in));  in feed_mixer_init()
167 		f->data = FEEDMIXER_DATA(FEEDMIXER_INFOIDX(f->data), value);  in feed_mixer_set()
191 	b = c->bufsoft;  in feed_mixer_rec()
192 	b->rp = 0;  in feed_mixer_rec()
193 	b->rl = 0;  in feed_mixer_rec()
198 		cnt = FEEDER_FEED(c->feeder->source, c, b->tmpbuf,  in feed_mixer_rec()
199 		    min(cnt, maxfeed), c->bufhard);  in feed_mixer_rec()
201 			sndbuf_acquire(b, b->tmpbuf, cnt);  in feed_mixer_rec()
207 	if (b->rl < sndbuf_getalign(b)) {  in feed_mixer_rec()
208 		b->rl = 0;  in feed_mixer_rec()
216 	rdy = b->rl;  in feed_mixer_rec()
220 		if (CHN_STOPPED(ch) || (ch->flags & CHN_F_DIRTY)) {  in feed_mixer_rec()
225 		if ((c->flags & CHN_F_DIRTY) && VCHAN_SYNC_REQUIRED(ch)) {  in feed_mixer_rec()
232 		bs = ch->bufsoft;  in feed_mixer_rec()
233 		if (ch->flags & CHN_F_MMAP)  in feed_mixer_rec()
242 			cnt = FEEDER_FEED(ch->feeder, ch, bs->tmpbuf,  in feed_mixer_rec()
245 				sndbuf_acquire(bs, bs->tmpbuf, cnt);  in feed_mixer_rec()
252 		if (b->rl != 0)  in feed_mixer_rec()
253 			ch->xruns++;  in feed_mixer_rec()
258 		b->rp = 0;  in feed_mixer_rec()
259 		b->rl = rdy;  in feed_mixer_rec()
267 	b->rl = 1;  in feed_mixer_rec()
269 	c->flags &= ~CHN_F_DIRTY;  in feed_mixer_rec()
290 	if (c->direction == PCMDIR_REC)  in feed_mixer_feed()
297 	info = &feed_mixer_info_tab[FEEDMIXER_INFOIDX(f->data)];  in feed_mixer_feed()
298 	sz = info->bps * FEEDMIXER_CHANNELS(f->data);  in feed_mixer_feed()
306 	 * list of children and calling mixer function to mix count bytes from  in feed_mixer_feed()
316 		if (CHN_STOPPED(ch) || (ch->flags & CHN_F_DIRTY)) {  in feed_mixer_feed()
321 		if ((c->flags & CHN_F_DIRTY) && VCHAN_SYNC_REQUIRED(ch)) {  in feed_mixer_feed()
328 		if ((ch->flags & CHN_F_MMAP) && !(ch->flags & CHN_F_CLOSING))  in feed_mixer_feed()
329 			sndbuf_acquire(ch->bufsoft, NULL,  in feed_mixer_feed()
330 			    sndbuf_getfree(ch->bufsoft));  in feed_mixer_feed()
331 		if (info->mix == NULL) {  in feed_mixer_feed()
338 			    (ch->format & AFMT_PASSTHROUGH)) {  in feed_mixer_feed()
339 				rcnt = SND_FXROUND(FEEDER_FEED(ch->feeder, ch,  in feed_mixer_feed()
340 				    b, count, ch->bufsoft), sz);  in feed_mixer_feed()
343 				FEEDER_FEED(ch->feeder, ch, tmp, count,  in feed_mixer_feed()
344 				    ch->bufsoft);  in feed_mixer_feed()
345 		} else if (c->flags & CHN_F_EXCLUSIVE) {  in feed_mixer_feed()
351 			if (passthrough == 0 && (ch->flags & CHN_F_EXCLUSIVE)) {  in feed_mixer_feed()
352 				rcnt = SND_FXROUND(FEEDER_FEED(ch->feeder, ch,  in feed_mixer_feed()
353 				    b, count, ch->bufsoft), sz);  in feed_mixer_feed()
356 				FEEDER_FEED(ch->feeder, ch, tmp, count,  in feed_mixer_feed()
357 				    ch->bufsoft);  in feed_mixer_feed()
360 				rcnt = SND_FXROUND(FEEDER_FEED(ch->feeder, ch,  in feed_mixer_feed()
361 				    b, count, ch->bufsoft), sz);  in feed_mixer_feed()
362 				mcnt = count - rcnt;  in feed_mixer_feed()
364 				cnt = SND_FXROUND(FEEDER_FEED(ch->feeder, ch,  in feed_mixer_feed()
365 				    tmp, count, ch->bufsoft), sz);  in feed_mixer_feed()
370 						    f->desc->out), mcnt);  in feed_mixer_feed()
373 					info->mix(tmp, b, cnt);  in feed_mixer_feed()
382 	if (++c->feedcount == 0)  in feed_mixer_feed()
383 		c->feedcount = 2;  in feed_mixer_feed()
385 	c->flags &= ~CHN_F_DIRTY;  in feed_mixer_feed()