1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/*
MCLD Poll-based units for SuperCollider.
Copyright (c) 2010 Dan Stowell. All rights reserved.
Incorporating some code from SuperCollider3 "Poll" UGen, (c) SC developers.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "SC_PlugIn.h"
#include <algorithm> /* for std::min and std::max */
static InterfaceTable *ft;
//////////////////////////////////////////////////////////////////////////////////////////////////
struct TextVU : public Unit
{
int m_samplesRemain, m_intervalSamples;
float m_trig;
float m_lastTextVU, m_id;
char *m_id_string;
bool m_mayprint;
size_t m_width;
float *m_cutoffs;
char *m_vustring;
float m_maxinepoch;
size_t m_maxever;
};
extern "C"
{
void load(InterfaceTable *inTable);
void TextVU_Ctor(TextVU* unit);
void TextVU_next_kk(TextVU *unit, int inNumSamples);
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
void TextVU_Ctor(TextVU* unit)
{
SETCALC(TextVU_next_kk);
unit->m_trig = IN0(0);
unit->m_id = IN0(4); // number of chars in the id string
unit->m_id_string = (char*)RTAlloc(unit->mWorld, ((int)unit->m_id + 1) * sizeof(char));
Print("TextVU: string length %g\n", unit->m_id);
for(int i = 0; i < (int)unit->m_id; i++){
unit->m_id_string[i] = (char)IN0(5+i);
};
unit->m_id_string[(int)unit->m_id] = '\0';
size_t width = (size_t)std::max(IN0(2), 2.f);
unit->m_width = width;
// Now we want to initialise the set of cutoffs, where the first is -60dB and last is 0dB.
unit->m_cutoffs = (float*)RTAlloc(unit->mWorld, width * sizeof(float));
unit->m_vustring = (char*)RTAlloc(unit->mWorld, (width+1) * sizeof(char));
unit->m_vustring[width] = 0;
float cutstep = 60.f / (float)(width-1);
float db = -60.f;
for(size_t i=0; i<width; ++i){
// calc cutoffs in amplitude from the db vals
unit->m_cutoffs[i] = sc_dbamp(db);
//Print("cutoff %i: %g\n", i, unit->m_cutoffs[i]);
db += cutstep;
}
unit->m_maxinepoch = 0.f;
unit->m_maxever = 0;
unit->m_mayprint = unit->mWorld->mVerbosity >= 0;
TextVU_next_kk(unit, 1);
}
void TextVU_Dtor(TextVU* unit)
{
if(unit->m_id_string) RTFree(unit->mWorld, unit->m_id_string);
if(unit->m_cutoffs) RTFree(unit->mWorld, unit->m_cutoffs);
if(unit->m_vustring) RTFree(unit->mWorld, unit->m_vustring);
}
void TextVU_next_kk(TextVU *unit, int inNumSamples){
float in = IN0(1);
float trig = IN0(0);
float maxinepoch = unit->m_maxinepoch;
size_t maxever = unit->m_maxever;
size_t width = unit->m_width;
float* cutoffs = unit->m_cutoffs;
char* vustring = unit->m_vustring;
if(IN0(3)){
maxinepoch = 0.f;
maxever = 0;
}
maxinepoch = sc_max(maxinepoch, in);
if((unit->m_trig <= 0.f) && (trig > 0.f)){
if(unit->m_mayprint){
// convert the input value to a meter position, using the precalced thresholds
size_t index = 0;
for(size_t i=0; i<width; ++i){
if(maxinepoch < cutoffs[i]){
if(maxever==i){
vustring[i] = '|';
}else{
vustring[i] = '-';
}
}else{
index = i; // this will get pushed up until it stops at the peak
vustring[i] = 'X';
}
}
// note the best ever
if(index > maxever){
maxever = index;
}
Print("%s: %s\n", unit->m_id_string, vustring);
maxinepoch = 0.f;
}
}
unit->m_trig = trig;
unit->m_maxever = maxever;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
PluginLoad(MCLDPoll)
{
ft = inTable;
DefineDtorUnit(TextVU);
}
|
