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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#define NUM_DEVICES 3
#define MAX_SENSORS 32
#define MAX_SWEEP_INFO 4
#define MAX_DATAPOINTS_PER_SECTION 16384
//Takes 300MB of ram to boot.
const char * Devices[] = { "HMD", "WM0", "WM1" };
const char * DevMap[] = { "LX", "LY", "RX", "RY" };
uint32_t DATASWEEP[NUM_DEVICES][MAX_SENSORS][MAX_SWEEP_INFO][MAX_DATAPOINTS_PER_SECTION];
uint16_t DATALENGTH[NUM_DEVICES][MAX_SENSORS][MAX_SWEEP_INFO][MAX_DATAPOINTS_PER_SECTION];
int DPNUM[NUM_DEVICES][MAX_SENSORS][MAX_SWEEP_INFO];
int main( int argc, char ** argv )
{
if( argc < 2 )
{
fprintf( stderr, "Error: usage process_to_points [raw data.csv]\n" );
exit( -5 );
}
FILE * f = fopen( argv[1], "r" );
int lineno = 0;
while(!feof(f) && !ferror(f) )
{
int i;
lineno++;
//Expecting; L X WM0 632359048 2 2 190890 319
//Pulsecode is ignored, L/R X/Y is what is used.
char * line;
size_t n = 0;
ssize_t r = getline( &line, &n, f );
if( r <= 0 ) break;
char lhn[10];
char axn[10];
char dev[10];
int unusedtime = 0;
int sensor = 0;
int unusedcode = 0;
int timeinsweep = 0;
int pulselength = 0;
int rr = sscanf(line,"%8s %8s %8s %d %d %d %d %d\n", lhn, axn, dev, &unusedtime, &sensor, &unusedcode, &timeinsweep, &pulselength );
free( line );
if( rr != 8 )
{
fprintf( stderr, "Warning: On line %d, only %d values read\n", lineno, rr );
continue;
}
int devnum = -1;
for( i = 0; i < NUM_DEVICES; i++ )
{
if( strcmp( dev, Devices[i] ) == 0 ) break;
}
if( i == NUM_DEVICES )
{
fprintf( stderr, "Error: unrecognized device %s on line %d\n",dev, lineno );
continue;
}
devnum = i;
if( sensor < 0 || sensor > MAX_SENSORS )
{
fprintf( stderr, "Error: sensor # too high on dev at line %d\n",lineno );
continue;
}
char lcom[3];
lcom[0] = lhn[0];
lcom[1] = axn[0];
lcom[2] = 0;
for( i = 0; i < 4; i++ )
{
if( strcmp( lcom, DevMap[i] ) == 0 ) break;
}
if( i == 4 )
{
fprintf( stderr, "Error: entry type %s confusing on line %d\n", lcom, lineno );
continue;
}
int swe = i;
int num = DPNUM[devnum][sensor][swe]++;
if( num >= MAX_DATAPOINTS_PER_SECTION )
{
fprintf( stderr, "Error: Too many datapoints on line %d - %d found, %d max\n", lineno, num, MAX_DATAPOINTS_PER_SECTION );
continue;
}
DATASWEEP[devnum][sensor][swe][num] = timeinsweep;
DATALENGTH[devnum][sensor][swe][num] = pulselength;
}
printf( "Read %d lines of data.\n", lineno );
//Now, process the data.
FILE * hists = fopen( "histograms.csv", "w" );
int dev, sen, swe;
for( dev = 0; dev < NUM_DEVICES; dev++ )
for( sen = 0; sen < MAX_SENSORS; sen++ )
for( swe = 0; swe < 4; swe++ )
{
int dpmax = DPNUM[dev][sen][swe];
if( !dpmax ) continue;
int i;
double sumsweeptime = 0;
double sumlentime = 0;
int count = 0;
for( i = 0; i < dpmax; i++ )
{
int sweeptime = DATASWEEP[dev][sen][swe][i];
int datalen = DATALENGTH[dev][sen][swe][i];
sumsweeptime += sweeptime;
sumlentime += datalen;
count++;
}
double avgsweep = sumsweeptime / count;
double avglen = sumlentime / count;
double stddevtim = 0;
double stddevlen = 0;
#define HISTOGRAMSIZE 65
int histo[HISTOGRAMSIZE];
memset( histo, 0, sizeof( histo ) );
for( i = 0; i < dpmax; i++ )
{
int sweeptime = DATASWEEP[dev][sen][swe][i];
int datalen = DATALENGTH[dev][sen][swe][i];
double Sdiff = sweeptime - avgsweep;
double Ldiff = datalen - avglen;
stddevtim += Sdiff * Sdiff;
stddevlen += Ldiff * Ldiff;
Sdiff/=4;
int llm = Sdiff + (HISTOGRAMSIZE/2.0);
if( llm < 0 ) llm = 0;
if( llm >= HISTOGRAMSIZE ) llm = HISTOGRAMSIZE-1;
histo[llm]++;
}
stddevtim /= count;
stddevlen /= count;
fprintf( hists, "%s%s%02d, ", Devices[dev], DevMap[swe], sen );
for( i = 0; i < HISTOGRAMSIZE; i++ )
{
fprintf( hists, "%d, ", histo[i] );
}
fprintf( hists, "\n" );
printf( "%s %s %d %d %f %f %f %f\n", Devices[dev], DevMap[swe], sen, count, avgsweep, avglen, stddevtim, stddevlen );
}
}
|
