/*- * Copyright (c) 2007-2009 Ariff Abdullah * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: head/sys/dev/sound/pcm/matrix.h 193640 2009-06-07 19:12:08Z ariff $ */ #ifndef _SND_MATRIX_H_ #define _SND_MATRIX_H_ #undef SND_MULTICHANNEL #ifndef SND_OLDSTEREO #define SND_MULTICHANNEL 1 #endif /* * XXX = unused, but part of the definition (will be used someday, maybe). */ #define SND_CHN_T_FL 0 /* Front Left */ #define SND_CHN_T_FR 1 /* Front Right */ #define SND_CHN_T_FC 2 /* Front Center */ #define SND_CHN_T_LF 3 /* Low Frequency */ #define SND_CHN_T_BL 4 /* Back Left */ #define SND_CHN_T_BR 5 /* Back Right */ #define SND_CHN_T_FLC 6 /* Front Left Center XXX */ #define SND_CHN_T_FRC 7 /* Front Right Center XXX */ #define SND_CHN_T_BC 8 /* Back Center */ #define SND_CHN_T_SL 9 /* Side Left */ #define SND_CHN_T_SR 10 /* Side Right */ #define SND_CHN_T_TC 11 /* Top Center XXX */ #define SND_CHN_T_TFL 12 /* Top Front Left XXX */ #define SND_CHN_T_TFC 13 /* Top Front Center XXX */ #define SND_CHN_T_TFR 14 /* Top Front Right XXX */ #define SND_CHN_T_TBL 15 /* Top Back Left XXX */ #define SND_CHN_T_TBC 16 /* Top Back Center XXX */ #define SND_CHN_T_TBR 17 /* Top Back Right XXX */ #define SND_CHN_T_MAX 18 /* Maximum channels */ #define SND_CHN_T_ZERO (SND_CHN_T_MAX + 1) /* Zero samples */ #define SND_CHN_T_LABELS { \ "fl", "fr", "fc", "lf", "bl", "br", \ "flc", "frc", "bc", "sl", "sr", "tc", \ "tfl", "tfc", "tfr", "tbl", "tbc", "tbr" \ } #define SND_CHN_T_NAMES { \ "Front Left", "Front Right", "Front Center", \ "Low Frequency Effects", \ "Back Left", "Back Right", \ "Front Left Center", "Front Right Center", \ "Back Center", \ "Side Left", "Side Right", \ "Top Center", \ "Top Front Left", "Top Front Center", "Top Front Right", \ "Top Back Left", "Top Back Center", "Top Back Right" \ } #define SND_CHN_T_MASK_FL (1 << SND_CHN_T_FL) #define SND_CHN_T_MASK_FR (1 << SND_CHN_T_FR) #define SND_CHN_T_MASK_FC (1 << SND_CHN_T_FC) #define SND_CHN_T_MASK_LF (1 << SND_CHN_T_LF) #define SND_CHN_T_MASK_BL (1 << SND_CHN_T_BL) #define SND_CHN_T_MASK_BR (1 << SND_CHN_T_BR) #define SND_CHN_T_MASK_FLC (1 << SND_CHN_T_FLC) #define SND_CHN_T_MASK_FRC (1 << SND_CHN_T_FRC) #define SND_CHN_T_MASK_BC (1 << SND_CHN_T_BC) #define SND_CHN_T_MASK_SL (1 << SND_CHN_T_SL) #define SND_CHN_T_MASK_SR (1 << SND_CHN_T_SR) #define SND_CHN_T_MASK_TC (1 << SND_CHN_T_TC) #define SND_CHN_T_MASK_TFL (1 << SND_CHN_T_TFL) #define SND_CHN_T_MASK_TFC (1 << SND_CHN_T_TFC) #define SND_CHN_T_MASK_TFR (1 << SND_CHN_T_TFR) #define SND_CHN_T_MASK_TBL (1 << SND_CHN_T_TBL) #define SND_CHN_T_MASK_TBC (1 << SND_CHN_T_TBC) #define SND_CHN_T_MASK_TBR (1 << SND_CHN_T_TBR) #define SND_CHN_LEFT_MASK (SND_CHN_T_MASK_FL | \ SND_CHN_T_MASK_BL | \ SND_CHN_T_MASK_FLC | \ SND_CHN_T_MASK_SL | \ SND_CHN_T_MASK_TFL | \ SND_CHN_T_MASK_TBL) #define SND_CHN_RIGHT_MASK (SND_CHN_T_MASK_FR | \ SND_CHN_T_MASK_BR | \ SND_CHN_T_MASK_FRC | \ SND_CHN_T_MASK_SR | \ SND_CHN_T_MASK_TFR | \ SND_CHN_T_MASK_TBR) #define SND_CHN_CENTER_MASK (SND_CHN_T_MASK_FC | \ SND_CHN_T_MASK_BC | \ SND_CHN_T_MASK_TC | \ SND_CHN_T_MASK_TFC | \ SND_CHN_T_MASK_TBC | \ SND_CHN_T_MASK_LF) /* XXX what?!? */ /* * Matrix identity. */ /* 1 @ Mono 1.0 */ #define SND_CHN_MATRIX_1_0 0 #define SND_CHN_MATRIX_1 SND_CHN_MATRIX_1_0 /* 2 @ Stereo 2.0 */ #define SND_CHN_MATRIX_2_0 1 #define SND_CHN_MATRIX_2 SND_CHN_MATRIX_2_0 /* 3 @ 2.1 (lfe), 3.0 (rear center, DEFAULT) */ #define SND_CHN_MATRIX_2_1 2 #define SND_CHN_MATRIX_3_0 3 #define SND_CHN_MATRIX_3 SND_CHN_MATRIX_3_0 /* 4 @ 4.0 Quadraphonic */ #define SND_CHN_MATRIX_4_0 4 #define SND_CHN_MATRIX_4 SND_CHN_MATRIX_4_0 /* 5 @ 4.1 (lfe), 5.0 (center, DEFAULT) */ #define SND_CHN_MATRIX_4_1 5 #define SND_CHN_MATRIX_5_0 6 #define SND_CHN_MATRIX_5 SND_CHN_MATRIX_5_0 /* 6 @ 5.1 (lfe, DEFAULT), 6.0 (rear center) */ #define SND_CHN_MATRIX_5_1 7 #define SND_CHN_MATRIX_6_0 8 #define SND_CHN_MATRIX_6 SND_CHN_MATRIX_5_1 /* 7 @ 6.1 (lfe) */ #define SND_CHN_MATRIX_6_1 9 #define SND_CHN_MATRIX_7 SND_CHN_MATRIX_6_1 /* 8 @ 7.1 (lfe) */ #define SND_CHN_MATRIX_7_1 10 #define SND_CHN_MATRIX_8 SND_CHN_MATRIX_7_1 #define SND_CHN_MATRIX_MAX 11 #define SND_CHN_MATRIX_BEGIN SND_CHN_MATRIX_1_0 #define SND_CHN_MATRIX_END SND_CHN_MATRIX_7_1 /* Custom matrix identity */ #define SND_CHN_MATRIX_DRV -4 /* driver own identity */ #define SND_CHN_MATRIX_PCMCHANNEL -3 /* PCM channel identity */ #define SND_CHN_MATRIX_MISC -2 /* misc, custom defined */ #define SND_CHN_MATRIX_UNKNOWN -1 /* unknown */ #define SND_CHN_T_VOL_0DB SND_CHN_T_MAX #define SND_CHN_T_VOL_MAX (SND_CHN_T_VOL_0DB + 1) #define SND_CHN_T_BEGIN SND_CHN_T_FL #define SND_CHN_T_END SND_CHN_T_TBR #define SND_CHN_T_STEP 1 #define SND_CHN_MIN 1 #ifdef SND_MULTICHANNEL #define SND_CHN_MAX 8 #else #define SND_CHN_MAX 2 #endif /* * Multichannel interleaved volume matrix. Each calculated value relative * to master and 0db will be stored in each CLASS + 1 as long as * chn_setvolume_matrix() or the equivalent CHN_SETVOLUME() macros is * used (see channel.c). */ #define SND_VOL_C_MASTER 0 #define SND_VOL_C_PCM 1 #define SND_VOL_C_PCM_VAL 2 #define SND_VOL_C_MAX 3 #define SND_VOL_C_BEGIN SND_VOL_C_PCM #define SND_VOL_C_END SND_VOL_C_PCM #define SND_VOL_C_STEP 2 #define SND_VOL_C_VAL(x) ((x) + 1) #define SND_VOL_0DB_MIN 1 #define SND_VOL_0DB_MAX 100 #define SND_VOL_0DB_MASTER 100 #define SND_VOL_0DB_PCM 45 #define SND_VOL_RESOLUTION 8 #define SND_VOL_FLAT (1 << SND_VOL_RESOLUTION) #define SND_VOL_CALC_SAMPLE(x, y) (((x) * (y)) >> SND_VOL_RESOLUTION) #define SND_VOL_CALC_VAL(x, y, z) \ (((((x)[y][z] << SND_VOL_RESOLUTION) / \ (x)[y][SND_CHN_T_VOL_0DB]) * \ (x)[SND_VOL_C_MASTER][z]) / \ (x)[SND_VOL_C_MASTER][SND_CHN_T_VOL_0DB]) \ #endif /* !_SND_MATRIX_H_ */