sound/pcm/feeder_chain.c

138 feeder_build_format(struct pcm_channel *c, struct feeder_chain_desc *cdesc)
144 	desc = &(cdesc->desc);
157 	desc->in = cdesc->current.afmt;
158 	desc->out = cdesc->target.afmt;
169 	cdesc->current.afmt = cdesc->target.afmt;
179 feeder_build_formatne(struct pcm_channel *c, struct feeder_chain_desc *cdesc)
184 	if (cdesc->afmt_ne == 0 ||
185 	    AFMT_ENCODING(cdesc->current.afmt) == cdesc->afmt_ne)
188 	otarget = cdesc->target;
189 	cdesc->target = cdesc->current;
190 	cdesc->target.afmt = SND_FORMAT(cdesc->afmt_ne,
191 	    cdesc->current.matrix->channels, cdesc->current.matrix->ext);
193 	ret = feeder_build_format(c, cdesc);
197 	cdesc->target = otarget;
206 feeder_build_rate(struct pcm_channel *c, struct feeder_chain_desc *cdesc)
213 	ret = feeder_build_formatne(c, cdesc);
217 	desc = &(cdesc->desc);
230 	desc->in = cdesc->current.afmt;
250 	if (cdesc->dummy != 0) {
259 	ret = FEEDER_SET(f, FEEDRATE_SRC, cdesc->current.rate);
266 	ret = FEEDER_SET(f, FEEDRATE_DST, cdesc->target.rate);
275 	cdesc->current.rate = cdesc->target.rate;
284 feeder_build_matrix(struct pcm_channel *c, struct feeder_chain_desc *cdesc)
291 	ret = feeder_build_formatne(c, cdesc);
295 	desc = &(cdesc->desc);
308 	desc->in = cdesc->current.afmt;
309 	desc->out = SND_FORMAT(cdesc->current.afmt,
310 	    cdesc->target.matrix->channels, cdesc->target.matrix->ext);
320 	ret = feeder_matrix_setup(f, cdesc->current.matrix,
321 	    cdesc->target.matrix);
330 	cdesc->current.afmt = desc->out;
331 	cdesc->current.matrix = cdesc->target.matrix;
332 	cdesc->use_matrix = 0;
341 feeder_build_volume(struct pcm_channel *c, struct feeder_chain_desc *cdesc)
348 	ret = feeder_build_formatne(c, cdesc);
352 	desc = &(cdesc->desc);
365 	desc->in = cdesc->current.afmt;
382 	if (cdesc->dummy != 0) {
391 	ret = feeder_volume_apply_matrix(f, cdesc->current.matrix);
400 	cdesc->use_volume = 0;
409 feeder_build_eq(struct pcm_channel *c, struct feeder_chain_desc *cdesc)
416 	ret = feeder_build_formatne(c, cdesc);
420 	desc = &(cdesc->desc);
433 	desc->in = cdesc->current.afmt;
445 	ret = FEEDER_SET(f, FEEDEQ_RATE, cdesc->current.rate);
454 	cdesc->use_eq = 0;
463 feeder_build_root(struct pcm_channel *c, struct feeder_chain_desc *cdesc)
484 	c->feeder->desc->in = cdesc->current.afmt;
485 	c->feeder->desc->out = cdesc->current.afmt;
494 feeder_build_mixer(struct pcm_channel *c, struct feeder_chain_desc *cdesc)
500 	desc = &(cdesc->desc);
513 	desc->in = cdesc->current.afmt;
583 	struct feeder_chain_desc cdesc;
597 	bzero(&cdesc, sizeof(cdesc));
615 	cdesc.mode = feeder_chain_mode;
616 	cdesc.expensive = 1;	/* XXX faster.. */
692 		cdesc.origin.afmt    = softfmt;
693 		cdesc.origin.matrix  = softmatrix;
694 		cdesc.origin.rate    = c->speed;
695 		cdesc.target.afmt    = hwfmt;
696 		cdesc.target.matrix  = hwmatrix;
697 		cdesc.target.rate    = sndbuf_getspd(c->bufhard);
699 		cdesc.origin.afmt    = hwfmt;
700 		cdesc.origin.matrix  = hwmatrix;
701 		cdesc.origin.rate    = sndbuf_getspd(c->bufhard);
702 		cdesc.target.afmt    = softfmt;
703 		cdesc.target.matrix  = softmatrix;
704 		cdesc.target.rate    = c->speed;
716 			cdesc.origin = cdesc.target;
718 			cdesc.target = cdesc.origin;
719 		c->format = cdesc.target.afmt;
720 		c->speed  = cdesc.target.rate;
724 			cdesc.dummy = 1;
730 			cdesc.use_volume = 1;
732 		if (feeder_matrix_compare(cdesc.origin.matrix,
733 		    cdesc.target.matrix) != 0)
734 			cdesc.use_matrix = 1;
737 		if (cdesc.dummy == 0 &&
742 			cdesc.use_eq = 1;
744 		if (FEEDFORMAT_NE_REQUIRED(&cdesc)) {
745 			cdesc.afmt_ne =
746 			    (cdesc.dummy != 0) ?
748 			    feeder_chain_formats[cdesc.mode]) :
749 			    snd_fmtbest(AFMT_ENCODING(cdesc.target.afmt),
750 			    feeder_chain_formats[cdesc.mode]);
751 			if (cdesc.afmt_ne == 0) {
754 				cdesc.afmt_ne =
755 				    (((cdesc.dummy != 0) ? softfmt :
756 				    cdesc.target.afmt) &
763 	cdesc.current = cdesc.origin;
770 	ret = feeder_build_##t(c, &cdesc);				\
795 	if (FEEDMATRIX_UP(&cdesc)) {
796 		if (FEEDEQ_REQUIRED(&cdesc) &&
797 		    (!FEEDEQ_VALIDRATE(&cdesc, target) ||
798 		    (cdesc.expensive == 0 && FEEDEQ_ECONOMY(&cdesc))))
800 		if (FEEDRATE_REQUIRED(&cdesc))
803 		if (FEEDVOLUME_REQUIRED(&cdesc))
805 		if (FEEDEQ_REQUIRED(&cdesc))
807 	} else if (FEEDMATRIX_DOWN(&cdesc)) {
809 		if (FEEDVOLUME_REQUIRED(&cdesc))
811 		if (FEEDEQ_REQUIRED(&cdesc) &&
812 		    (!FEEDEQ_VALIDRATE(&cdesc, target) ||
813 		    FEEDEQ_ECONOMY(&cdesc)))
815 		if (FEEDRATE_REQUIRED(&cdesc))
817 		if (FEEDEQ_REQUIRED(&cdesc))
820 		if (FEEDRATE_DOWN(&cdesc)) {
821 			if (FEEDEQ_REQUIRED(&cdesc) &&
822 			    !FEEDEQ_VALIDRATE(&cdesc, target)) {
823 				if (FEEDVOLUME_REQUIRED(&cdesc))
829 		if (FEEDMATRIX_REQUIRED(&cdesc))
831 		if (FEEDVOLUME_REQUIRED(&cdesc))
833 		if (FEEDRATE_UP(&cdesc)) {
834 			if (FEEDEQ_REQUIRED(&cdesc) &&
835 			    !FEEDEQ_VALIDRATE(&cdesc, target))
839 		if (FEEDEQ_REQUIRED(&cdesc))
843 	if (FEEDFORMAT_REQUIRED(&cdesc))