2 * Copyright (c) 2007-2009 Ariff Abdullah <ariff@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _SND_MATRIX_H_
30 #define _SND_MATRIX_H_
32 #undef SND_MULTICHANNEL
34 #define SND_MULTICHANNEL 1
38 * XXX = unused, but part of the definition (will be used someday, maybe).
40 #define SND_CHN_T_FL 0 /* Front Left */
41 #define SND_CHN_T_FR 1 /* Front Right */
42 #define SND_CHN_T_FC 2 /* Front Center */
43 #define SND_CHN_T_LF 3 /* Low Frequency */
44 #define SND_CHN_T_BL 4 /* Back Left */
45 #define SND_CHN_T_BR 5 /* Back Right */
46 #define SND_CHN_T_FLC 6 /* Front Left Center XXX */
47 #define SND_CHN_T_FRC 7 /* Front Right Center XXX */
48 #define SND_CHN_T_BC 8 /* Back Center */
49 #define SND_CHN_T_SL 9 /* Side Left */
50 #define SND_CHN_T_SR 10 /* Side Right */
51 #define SND_CHN_T_TC 11 /* Top Center XXX */
52 #define SND_CHN_T_TFL 12 /* Top Front Left XXX */
53 #define SND_CHN_T_TFC 13 /* Top Front Center XXX */
54 #define SND_CHN_T_TFR 14 /* Top Front Right XXX */
55 #define SND_CHN_T_TBL 15 /* Top Back Left XXX */
56 #define SND_CHN_T_TBC 16 /* Top Back Center XXX */
57 #define SND_CHN_T_TBR 17 /* Top Back Right XXX */
58 #define SND_CHN_T_MAX 18 /* Maximum channels */
60 #define SND_CHN_T_ZERO (SND_CHN_T_MAX + 1) /* Zero samples */
62 #define SND_CHN_T_LABELS { \
63 "fl", "fr", "fc", "lf", "bl", "br", \
64 "flc", "frc", "bc", "sl", "sr", "tc", \
65 "tfl", "tfc", "tfr", "tbl", "tbc", "tbr" \
68 #define SND_CHN_T_NAMES { \
69 "Front Left", "Front Right", "Front Center", \
70 "Low Frequency Effects", \
71 "Back Left", "Back Right", \
72 "Front Left Center", "Front Right Center", \
74 "Side Left", "Side Right", \
76 "Top Front Left", "Top Front Center", "Top Front Right", \
77 "Top Back Left", "Top Back Center", "Top Back Right" \
80 #define SND_CHN_T_MASK_FL (1 << SND_CHN_T_FL)
81 #define SND_CHN_T_MASK_FR (1 << SND_CHN_T_FR)
82 #define SND_CHN_T_MASK_FC (1 << SND_CHN_T_FC)
83 #define SND_CHN_T_MASK_LF (1 << SND_CHN_T_LF)
84 #define SND_CHN_T_MASK_BL (1 << SND_CHN_T_BL)
85 #define SND_CHN_T_MASK_BR (1 << SND_CHN_T_BR)
86 #define SND_CHN_T_MASK_FLC (1 << SND_CHN_T_FLC)
87 #define SND_CHN_T_MASK_FRC (1 << SND_CHN_T_FRC)
88 #define SND_CHN_T_MASK_BC (1 << SND_CHN_T_BC)
89 #define SND_CHN_T_MASK_SL (1 << SND_CHN_T_SL)
90 #define SND_CHN_T_MASK_SR (1 << SND_CHN_T_SR)
91 #define SND_CHN_T_MASK_TC (1 << SND_CHN_T_TC)
92 #define SND_CHN_T_MASK_TFL (1 << SND_CHN_T_TFL)
93 #define SND_CHN_T_MASK_TFC (1 << SND_CHN_T_TFC)
94 #define SND_CHN_T_MASK_TFR (1 << SND_CHN_T_TFR)
95 #define SND_CHN_T_MASK_TBL (1 << SND_CHN_T_TBL)
96 #define SND_CHN_T_MASK_TBC (1 << SND_CHN_T_TBC)
97 #define SND_CHN_T_MASK_TBR (1 << SND_CHN_T_TBR)
99 #define SND_CHN_LEFT_MASK (SND_CHN_T_MASK_FL | \
100 SND_CHN_T_MASK_BL | \
101 SND_CHN_T_MASK_FLC | \
102 SND_CHN_T_MASK_SL | \
103 SND_CHN_T_MASK_TFL | \
106 #define SND_CHN_RIGHT_MASK (SND_CHN_T_MASK_FR | \
107 SND_CHN_T_MASK_BR | \
108 SND_CHN_T_MASK_FRC | \
109 SND_CHN_T_MASK_SR | \
110 SND_CHN_T_MASK_TFR | \
113 #define SND_CHN_CENTER_MASK (SND_CHN_T_MASK_FC | \
114 SND_CHN_T_MASK_BC | \
115 SND_CHN_T_MASK_TC | \
116 SND_CHN_T_MASK_TFC | \
117 SND_CHN_T_MASK_TBC | \
118 SND_CHN_T_MASK_LF) /* XXX what?!? */
125 #define SND_CHN_MATRIX_1_0 0
126 #define SND_CHN_MATRIX_1 SND_CHN_MATRIX_1_0
129 #define SND_CHN_MATRIX_2_0 1
130 #define SND_CHN_MATRIX_2 SND_CHN_MATRIX_2_0
132 /* 3 @ 2.1 (lfe), 3.0 (rear center, DEFAULT) */
133 #define SND_CHN_MATRIX_2_1 2
134 #define SND_CHN_MATRIX_3_0 3
135 #define SND_CHN_MATRIX_3 SND_CHN_MATRIX_3_0
137 /* 4 @ 4.0 Quadraphonic */
138 #define SND_CHN_MATRIX_4_0 4
139 #define SND_CHN_MATRIX_4 SND_CHN_MATRIX_4_0
141 /* 5 @ 4.1 (lfe), 5.0 (center, DEFAULT) */
142 #define SND_CHN_MATRIX_4_1 5
143 #define SND_CHN_MATRIX_5_0 6
144 #define SND_CHN_MATRIX_5 SND_CHN_MATRIX_5_0
146 /* 6 @ 5.1 (lfe, DEFAULT), 6.0 (rear center) */
147 #define SND_CHN_MATRIX_5_1 7
148 #define SND_CHN_MATRIX_6_0 8
149 #define SND_CHN_MATRIX_6 SND_CHN_MATRIX_5_1
152 #define SND_CHN_MATRIX_6_1 9
153 #define SND_CHN_MATRIX_7 SND_CHN_MATRIX_6_1
156 #define SND_CHN_MATRIX_7_1 10
157 #define SND_CHN_MATRIX_8 SND_CHN_MATRIX_7_1
159 #define SND_CHN_MATRIX_MAX 11
161 #define SND_CHN_MATRIX_BEGIN SND_CHN_MATRIX_1_0
162 #define SND_CHN_MATRIX_END SND_CHN_MATRIX_7_1
164 /* Custom matrix identity */
165 #define SND_CHN_MATRIX_DRV -4 /* driver own identity */
166 #define SND_CHN_MATRIX_PCMCHANNEL -3 /* PCM channel identity */
167 #define SND_CHN_MATRIX_MISC -2 /* misc, custom defined */
168 #define SND_CHN_MATRIX_UNKNOWN -1 /* unknown */
170 #define SND_CHN_T_VOL_0DB SND_CHN_T_MAX
171 #define SND_CHN_T_VOL_MAX (SND_CHN_T_VOL_0DB + 1)
173 #define SND_CHN_T_BEGIN SND_CHN_T_FL
174 #define SND_CHN_T_END SND_CHN_T_TBR
175 #define SND_CHN_T_STEP 1
176 #define SND_CHN_MIN 1
178 #ifdef SND_MULTICHANNEL
179 #define SND_CHN_MAX 8
181 #define SND_CHN_MAX 2
185 * Multichannel interleaved volume matrix. Each calculated value relative
186 * to master and 0db will be stored in each CLASS + 1 as long as
187 * chn_setvolume_matrix() or the equivalent CHN_SETVOLUME() macros is
188 * used (see channel.c).
190 #define SND_VOL_C_MASTER 0
191 #define SND_VOL_C_PCM 1
192 #define SND_VOL_C_PCM_VAL 2
193 #define SND_VOL_C_MAX 3
195 #define SND_VOL_C_BEGIN SND_VOL_C_PCM
196 #define SND_VOL_C_END SND_VOL_C_PCM
197 #define SND_VOL_C_STEP 2
199 #define SND_VOL_C_VAL(x) ((x) + 1)
201 #define SND_VOL_0DB_MIN 1
202 #define SND_VOL_0DB_MAX 100
204 #define SND_VOL_0DB_MASTER 100
205 #define SND_VOL_0DB_PCM 45
207 #define SND_VOL_RESOLUTION 8
208 #define SND_VOL_FLAT (1 << SND_VOL_RESOLUTION)
210 #define SND_VOL_CALC_SAMPLE(x, y) (((x) * (y)) >> SND_VOL_RESOLUTION)
212 #define SND_VOL_CALC_VAL(x, y, z) \
213 (((((x)[y][z] << SND_VOL_RESOLUTION) / \
214 (x)[y][SND_CHN_T_VOL_0DB]) * \
215 (x)[SND_VOL_C_MASTER][z]) / \
216 (x)[SND_VOL_C_MASTER][SND_CHN_T_VOL_0DB]) \
218 #endif /* !_SND_MATRIX_H_ */