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
178
|
/*
* MissingLink Firmware
* Copyright 2011 Jabrudian Industries LLC
*
* MissingLink Firmware 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 3 of the License, or
* (at your option) any later version.
*
* MissingLink Firmware 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 MissingLink Firmware. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <avr/interrupt.h>
#include "Parse.h"
#include "Output.h"
bool getMessageInfo(OSCMessage& oscMess, MessageInfo& mi)
{
const char* addr = oscMess.getOSCAddress();
int addrLen = oscMess.getOSCAddressLen();
if (addrLen <= 0)
return false;
mi.isZ = (addrLen > 2) && (addr[addrLen - 2] == '/') && (addr[addrLen - 1] == 'z');
mi.hasX = ((addr[0] == 'x') || addr[0] == 'X');
mi.hasY = ((addr[0] == 'y') || addr[0] == 'Y');
for (int i = 1; i < addrLen; i++)
{
mi.hasX |= ((addr[i] == 'x' || addr[i] == 'X') && (addr[i-1] != '0'));
mi.hasY |= (addr[i] == 'y' || addr[i] == 'Y');
}
// Make sure this message passes basic checks
// Make sure we've got at least one argument if we're reference it in the message
if ((mi.hasX || mi.isZ) && oscMess.getArgsNum() < 1)
return false;
// Make sure there's a y argument if we're referencing y
if (mi.hasY && oscMess.getArgsNum() < 2)
return false;
return true;
}
uint8_t getTouchArg(OSCMessage& oscMess, uint8_t arg, float fScale, float fOffset)
{
switch( oscMess.getTypeTag(arg) )
{
case 'i':
return oscMess.getInteger32(arg);
break;
case 'f':
{
const float HAXVALUE = 0.9f; // Make sliders in TouchOSC happier
return trunc(oscMess.getFloat(arg) * (fScale+HAXVALUE)) + fOffset;
}
break;
case 's':
default :
return 0xFF;
break;
}
}
int getValue(const char* str, char** numstr, OSCMessage& oscMess)
{
char* currOffset = (char*) str;
float offset = 0.0f;
float scale = 127.0f;
int argIndex = -1;
int whichBits = 0; // 0 = all, 1 = lsb7, 2 = msb7
// Eat whitespace
while ((*currOffset == ' ') || (*currOffset == '_'))
currOffset++;
// Handle constants
if (*currOffset >= '0' && *currOffset <= '9')
{
return strtol(currOffset, numstr, 0);
}
// Handle variables
if (*currOffset == 'x' || *currOffset == 'y' || *currOffset == 'z' ||
*currOffset == 'X' || *currOffset == 'Y' || *currOffset == 'Z')
{
switch (*currOffset)
{
case 'X' :
case 'x' : // first var
argIndex = 0;
break;
case 'Y':
case 'y': // second var
argIndex = 1;
break;
case 'Z' :
case 'z' : // first var for /z messages
argIndex = 0;
break;
}
currOffset++;
if (*currOffset == 'L')
{
whichBits = 1;
currOffset++;
} else {
if (*currOffset == 'M')
{
whichBits = 2;
currOffset++;
}
}
// Check for offset/scale
if (*currOffset == '(')
{
currOffset++; // (
const char* oldOffset = currOffset;
float lowEnd = (float) strtol(currOffset, &currOffset, 0);
// Check for parse issues
if (oldOffset == currOffset)
return 0;
// Skip ".."
currOffset += 2;
// Parse the next param
oldOffset = currOffset;
float highEnd = (float) strtol(currOffset, &currOffset, 0);
if (oldOffset == currOffset)
return 0;
currOffset++; // )
offset = lowEnd;
scale = highEnd - lowEnd;
}
*numstr = currOffset;
int ret = getTouchArg(oscMess, argIndex, scale, offset);
switch (whichBits)
{
case 1 :
return ret & 0x7F;
break;
case 2 :
return (ret >> 7) & 0x7F;
break;
default :
return ret;
break;
}
}
return 0;
}
void sendChunk(const char* inbuffer, const uint8_t inlen, OSCMessage& oscMess)
{
char* currOffset = (char*) inbuffer;
while (currOffset < inbuffer + inlen)
{
cli();
const char* oldOffset = currOffset;
uint8_t val = (uint8_t) getValue(currOffset, &currOffset, oscMess);
if (oldOffset != currOffset)
{
sendByte(val);
} else {
currOffset++;
}
sei();
}
DEBUG_PRINTF("\n");
}
|
