spandsp 3.0.0
v29tx_constellation_maps.h
1/*
2 * SpanDSP - a series of DSP components for telephony
3 *
4 * v29tx_constellation_maps.h - ITU V.29 modem transmit part.
5 * Constellation mapping.
6 *
7 * Written by Steve Underwood <steveu@coppice.org>
8 *
9 * Copyright (C) 2008, 2012 Steve Underwood
10 *
11 * All rights reserved.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU Lesser General Public License version 2.1,
15 * as published by the Free Software Foundation.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU Lesser General Public License for more details.
21 *
22 * You should have received a copy of the GNU Lesser General Public
23 * License along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 */
26
27#if defined(SPANDSP_USE_FIXED_POINT)
28static const complexi16_t v29_abab_constellation[6] =
29#else
30static const complexf_t v29_abab_constellation[6] =
31#endif
32{
33 {FP_CONSTELLATION_SCALE( 3.0f), FP_CONSTELLATION_SCALE(-3.0f)}, /* 315deg high 9600 */
34 {FP_CONSTELLATION_SCALE(-3.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 180deg low */
35 {FP_CONSTELLATION_SCALE( 1.0f), FP_CONSTELLATION_SCALE(-1.0f)}, /* 315deg low 7200 */
36 {FP_CONSTELLATION_SCALE(-3.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 180deg low */
37 {FP_CONSTELLATION_SCALE( 0.0f), FP_CONSTELLATION_SCALE(-3.0f)}, /* 270deg low 4800 */
38 {FP_CONSTELLATION_SCALE(-3.0f), FP_CONSTELLATION_SCALE( 0.0f)} /* 180deg low */
39};
40
41#if defined(SPANDSP_USE_FIXED_POINT)
42static const complexi16_t v29_cdcd_constellation[6] =
43#else
44static const complexf_t v29_cdcd_constellation[6] =
45#endif
46{
47 {FP_CONSTELLATION_SCALE( 3.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 0deg low 9600 */
48 {FP_CONSTELLATION_SCALE(-3.0f), FP_CONSTELLATION_SCALE( 3.0f)}, /* 135deg high */
49 {FP_CONSTELLATION_SCALE( 3.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 0deg low 7200 */
50 {FP_CONSTELLATION_SCALE(-1.0f), FP_CONSTELLATION_SCALE( 1.0f)}, /* 135deg low */
51 {FP_CONSTELLATION_SCALE( 3.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 0deg low 4800 */
52 {FP_CONSTELLATION_SCALE( 0.0f), FP_CONSTELLATION_SCALE( 3.0f)} /* 90deg low */
53};
54
55#if defined(SPANDSP_USE_FIXED_POINT)
56static const complexi16_t v29_9600_constellation[16] =
57#else
58static const complexf_t v29_9600_constellation[16] =
59#endif
60{
61 {FP_CONSTELLATION_SCALE( 3.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 0deg low */
62 {FP_CONSTELLATION_SCALE( 1.0f), FP_CONSTELLATION_SCALE( 1.0f)}, /* 45deg low */
63 {FP_CONSTELLATION_SCALE( 0.0f), FP_CONSTELLATION_SCALE( 3.0f)}, /* 90deg low */
64 {FP_CONSTELLATION_SCALE(-1.0f), FP_CONSTELLATION_SCALE( 1.0f)}, /* 135deg low */
65 {FP_CONSTELLATION_SCALE(-3.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 180deg low */
66 {FP_CONSTELLATION_SCALE(-1.0f), FP_CONSTELLATION_SCALE(-1.0f)}, /* 225deg low */
67 {FP_CONSTELLATION_SCALE( 0.0f), FP_CONSTELLATION_SCALE(-3.0f)}, /* 270deg low */
68 {FP_CONSTELLATION_SCALE( 1.0f), FP_CONSTELLATION_SCALE(-1.0f)}, /* 315deg low */
69 {FP_CONSTELLATION_SCALE( 5.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 0deg high */
70 {FP_CONSTELLATION_SCALE( 3.0f), FP_CONSTELLATION_SCALE( 3.0f)}, /* 45deg high */
71 {FP_CONSTELLATION_SCALE( 0.0f), FP_CONSTELLATION_SCALE( 5.0f)}, /* 90deg high */
72 {FP_CONSTELLATION_SCALE(-3.0f), FP_CONSTELLATION_SCALE( 3.0f)}, /* 135deg high */
73 {FP_CONSTELLATION_SCALE(-5.0f), FP_CONSTELLATION_SCALE( 0.0f)}, /* 180deg high */
74 {FP_CONSTELLATION_SCALE(-3.0f), FP_CONSTELLATION_SCALE(-3.0f)}, /* 225deg high */
75 {FP_CONSTELLATION_SCALE( 0.0f), FP_CONSTELLATION_SCALE(-5.0f)}, /* 270deg high */
76 {FP_CONSTELLATION_SCALE( 3.0f), FP_CONSTELLATION_SCALE(-3.0f)} /* 315deg high */
77};
78
79/*- End of file ------------------------------------------------------------*/
Definition complex.h:43
Definition complex.h:89