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
|
/************************************************************************
************************************************************************
FAUST compiler
Copyright (C) 2003-2018 GRAME, Centre National de Creation Musicale
---------------------------------------------------------------------
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., 675 Mass Ave, Cambridge, MA 02139, USA.
************************************************************************
************************************************************************/
#ifndef _STRUCT_MANAGER_H
#define _STRUCT_MANAGER_H
#include <map>
#include <string>
#include "instructions.hh"
// Describe a field memory location in the DSP structure
struct MemoryDesc {
MemoryDesc() : fOffset(-1), fSize(-1), fType(Typed::kNoType) {}
MemoryDesc(int offset, int size, Typed::VarType type)
:fOffset(offset), fSize(size), fType(type) {}
int fOffset;
int fSize;
Typed::VarType fType;
};
/*
Compute all fields addresses and DSP structure size
*/
struct StructMemoryInstVisitor : public DispatchVisitor {
int fStructOffset; // Keep the offset in bytes of the structure
map<string, MemoryDesc> fFieldTable; // Table : field_name, { offset, size, type }
StructMemoryInstVisitor() : fStructOffset(0) {}
// Return the index of a given field
int getFieldOffset(const string& name)
{
return (fFieldTable.find(name) != fFieldTable.end()) ? fFieldTable[name].fOffset : -1;
}
// Return the DSP size in bytes
int getStructSize() { return fStructOffset; }
map<string, MemoryDesc>& getFieldTable() { return fFieldTable; }
// Declarations
virtual void visit(DeclareVarInst* inst)
{
// dump2FIR(inst);
bool is_struct =
(inst->fAddress->getAccess() & Address::kStruct) || (inst->fAddress->getAccess() & Address::kStaticStruct);
ArrayTyped* array_typed = dynamic_cast<ArrayTyped*>(inst->fType);
if (array_typed && array_typed->fSize > 1) {
if (is_struct) {
fFieldTable[inst->fAddress->getName()] =
MemoryDesc(fStructOffset, array_typed->fSize, array_typed->fType->getType());
// Always use biggest size so that int/real access are correctly aligned
fStructOffset += (array_typed->fSize * audioSampleSize());
} else {
// Should never happen...
faustassert(false);
}
} else {
if (is_struct) {
fFieldTable[inst->fAddress->getName()] = MemoryDesc(fStructOffset, 1, inst->fType->getType());
// Always use biggest size so that int/real access are correctly aligned
fStructOffset += audioSampleSize();
} else {
// Local variables declared by [var_num, type] pairs
faustassert(inst->fValue == nullptr);
}
}
}
};
#endif
|
