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199
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1 /*
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2 TiMidity -- Experimental MIDI to WAVE converter
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3 Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>
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4
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5 This program is free software; you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 2 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program; if not, write to the Free Software
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17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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18 */
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19
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20 /* When a patch file can't be opened, one of these extensions is
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21 appended to the filename and the open is tried again.
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22 */
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23 #define PATCH_EXT_LIST { ".pat", 0 }
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24
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25 /* Acoustic Grand Piano seems to be the usual default instrument. */
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26 #define DEFAULT_PROGRAM 0
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27
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28 /* 9 here is MIDI channel 10, which is the standard percussion channel.
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29 Some files (notably C:\WINDOWS\CANYON.MID) think that 16 is one too.
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30 On the other hand, some files know that 16 is not a drum channel and
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31 try to play music on it. This is now a runtime option, so this isn't
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32 a critical choice anymore. */
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33 #define DEFAULT_DRUMCHANNELS ((1<<9) | (1<<15))
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34
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35 /* In percent. */
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36 #define DEFAULT_AMPLIFICATION 70
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37
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38 /* Default polyphony */
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39 #define DEFAULT_VOICES 32
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40
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41 /* 1000 here will give a control ratio of 22:1 with 22 kHz output.
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42 Higher CONTROLS_PER_SECOND values allow more accurate rendering
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43 of envelopes and tremolo. The cost is CPU time. */
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44 #define CONTROLS_PER_SECOND 1000
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45
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46 /* Make envelopes twice as fast. Saves ~20% CPU time (notes decay
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47 faster) and sounds more like a GUS. There is now a command line
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48 option to toggle this as well. */
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49 #define FAST_DECAY
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50
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51 /* How many bits to use for the fractional part of sample positions.
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52 This affects tonal accuracy. The entire position counter must fit
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53 in 32 bits, so with FRACTION_BITS equal to 12, the maximum size of
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54 a sample is 1048576 samples (2 megabytes in memory). The GUS gets
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55 by with just 9 bits and a little help from its friends...
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56 "The GUS does not SUCK!!!" -- a happy user :) */
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57 #define FRACTION_BITS 12
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58
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59 /* For some reason the sample volume is always set to maximum in all
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60 patch files. Define this for a crude adjustment that may help
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61 equalize instrument volumes. */
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62 #define ADJUST_SAMPLE_VOLUMES
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63
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64 /* The number of samples to use for ramping out a dying note. Affects
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65 click removal. */
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66 #define MAX_DIE_TIME 20
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67
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68 /**************************************************************************/
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69 /* Anything below this shouldn't need to be changed unless you're porting
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70 to a new machine with other than 32-bit, big-endian words. */
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71 /**************************************************************************/
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72
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73 /* change FRACTION_BITS above, not these */
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74 #define INTEGER_MASK (0xFFFFFFFF << FRACTION_BITS)
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75 #define FRACTION_MASK (~ INTEGER_MASK)
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76
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77 /* This is enforced by some computations that must fit in an int */
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78 #define MAX_CONTROL_RATIO 255
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79
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80 #define MAX_AMPLIFICATION 800
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81
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82 /* The TiMidity configuration file */
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83 #define CONFIG_FILE "timidity.cfg"
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84
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85 /* These affect general volume */
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86 #define GUARD_BITS 3
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87 #define AMP_BITS (15-GUARD_BITS)
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88
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89 #define MAX_AMP_VALUE ((1<<(AMP_BITS+1))-1)
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90
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91 #define FSCALE(a,b) (float)((a) * (double)(1<<(b)))
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92 #define FSCALENEG(a,b) (float)((a) * (1.0L / (double)(1<<(b))))
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93
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94 /* Vibrato and tremolo Choices of the Day */
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95 #define SWEEP_TUNING 38
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96 #define VIBRATO_AMPLITUDE_TUNING 1.0L
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97 #define VIBRATO_RATE_TUNING 38
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98 #define TREMOLO_AMPLITUDE_TUNING 1.0L
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99 #define TREMOLO_RATE_TUNING 38
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100
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101 #define SWEEP_SHIFT 16
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102 #define RATE_SHIFT 5
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103
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104 #ifndef PI
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105 #define PI 3.14159265358979323846
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106 #endif
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107
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108 /* The path separator (D.M.) */
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109 #ifdef WIN32
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110 # define PATH_SEP '\\'
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111 #else
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112 # define PATH_SEP '/'
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113 #endif
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