37  * + very generic and compact, provided that the supplied matrix map is in a
43  * + 'matrix' is kind of 0x7a69, due to prolong mental block.
80 	} matrix[SND_CHN_T_MAX + 1];  member
132 		for (i = 0; info->matrix[i].chn[0] != SND_CHN_T_EOF;	\
134 			if (info->matrix[i].chn[0] == SND_CHN_T_NULL) {	\
139 			} else if (info->matrix[i].chn[1] ==		\
142 				    src + info->matrix[i].chn[0]);	\
151 			    info->matrix[i].chn[j] != SND_CHN_T_EOF;	\
154 				    src + info->matrix[i].chn[j]);	\
158 			accum = (accum * info->matrix[i].mul) >>	\
159 			    info->matrix[i].shift;			\
233 	for (i = 0; i < nitems(info->matrix); i++) {  in feed_matrix_reset()
235 		    j < (sizeof(info->matrix[i].chn) /  in feed_matrix_reset()
236 		    sizeof(info->matrix[i].chn[0])); j++) {  in feed_matrix_reset()
237 			info->matrix[i].chn[j] = SND_CHN_T_EOF;  in feed_matrix_reset()
239 		info->matrix[i].mul   = 1;  in feed_matrix_reset()
240 		info->matrix[i].shift = 0;  in feed_matrix_reset()
254 		for (i = 0; info->matrix[i].chn[0] != SND_CHN_T_EOF;  in feed_matrix_apply_generic()
256 			if (info->matrix[i].chn[0] == SND_CHN_T_NULL) {  in feed_matrix_apply_generic()
260 			} else if (info->matrix[i].chn[1] ==  in feed_matrix_apply_generic()
262 				v = info->rd(src + info->matrix[i].chn[0]);  in feed_matrix_apply_generic()
270 			    info->matrix[i].chn[j] != SND_CHN_T_EOF;  in feed_matrix_apply_generic()
272 				v = info->rd(src + info->matrix[i].chn[j]);  in feed_matrix_apply_generic()
276 			accum = (accum * info->matrix[i].mul) >>  in feed_matrix_apply_generic()
277 			    info->matrix[i].shift;  in feed_matrix_apply_generic()
308 	 * If both in and out are part of standard matrix and identical, skip  in feed_matrix_setup()
316 	 * Special case for mono input matrix. If the output supports  in feed_matrix_setup()
335 			info->matrix[ch].chn[0] = SND_CHN_T_NULL;  in feed_matrix_setup()
345 					info->matrix[ch].chn[j++] =  in feed_matrix_setup()
348 					info->matrix[ch].chn[j++] =  in feed_matrix_setup()
369 			info->matrix[ch].mul   = mul;  in feed_matrix_setup()
370 			info->matrix[ch].shift = shift;  in feed_matrix_setup()
377 	for (i = 0; info->matrix[i].chn[0] != SND_CHN_T_EOF; i++) {  in feed_matrix_setup()
379 		for (j = 0; info->matrix[i].chn[j] != SND_CHN_T_EOF; j++) {  in feed_matrix_setup()
383 			    (info->matrix[i].chn[j] == SND_CHN_T_NULL) ?  in feed_matrix_setup()
384 			    0xffffffff : info->matrix[i].chn[j] / info->bps);  in feed_matrix_setup()
387 		    info->matrix[i].mul, info->matrix[i].shift);  in feed_matrix_setup()
474 	if (info->matrix[0].chn[0] == SND_CHN_T_EOF)  in feed_matrix_feed()
569  * feeder_matrix_default_channel_map(): Ditto, but return matrix map
586  *                                 matrix.
613  * feeder_matrix_format_id(): For a given audio format, return its matrix
634  * feeder_matrix_format_map(): For a given audio format, return its matrix
655  * feeder_matrix_id_map(): For a given matrix id, return its matrix map.
802 		/* channel not exist in matrix */  in feeder_matrix_oss_set_channel_order()