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/************************************************************************
************************************************************************
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 <string>
#include <utility>
#include <vector>
#include "instructions.hh"
// Describe a field memory location in the DSP structure
struct MemoryDesc {
int fIndex; // Field index
int fOffset; // Field offset in bytes in a mixed int/real zone
int fIntOffset; // Field offset in bytes in a separated int zone
int fRealOffset; // Field offset in bytes in a separated real zone
int fSize; // Field size in bytes
Typed::VarType fType;
MemoryDesc() : fIndex(-1), fOffset(-1), fIntOffset(-1), fRealOffset(-1), fSize(-1), fType(Typed::kNoType) {}
MemoryDesc(int index, int offset, int size, Typed::VarType type)
: fIndex(index), fOffset(offset), fIntOffset(-1), fRealOffset(-1), fSize(size), fType(type) {}
MemoryDesc(int index, int offset, int int_offset, int read_offset, int size, Typed::VarType type)
: fIndex(index), fOffset(offset), fIntOffset(int_offset), fRealOffset(read_offset), fSize(size), fType(type) {}
Typed* getTyped()
{
if (fSize > 1) {
return InstBuilder::genArrayTyped(InstBuilder::genBasicTyped(fType), fSize);
} else {
return InstBuilder::genBasicTyped(fType);
}
}
};
/*
Compute all field info, the DSP size, and separate 'int' and 'real' types
*/
struct StructInstVisitor : public DispatchVisitor {
int fStructIntOffset; // Keep the int offset in bytes
int fStructRealOffset; // Keep the real offset in bytes
int fFieldIndex; // Keep the field index
MemoryDesc fDefault;
// Vector is used so that field names are ordered in 'getStructType'
typedef vector<pair<string, MemoryDesc> > field_table_type;
field_table_type fFieldTable; // Table: field_name, { index, offset, size, type }
StructInstVisitor() : fStructIntOffset(0), fStructRealOffset(0), fFieldIndex(0) {}
// Check if the field name exists
bool hasField(const string& name, Typed::VarType& type)
{
for (auto& field : fFieldTable) {
if (field.first == name) {
type = field.second.fType;
return true;
}
}
return false;
}
// Return the offset of a given field in bytes
int getFieldOffset(const string& name)
{
for (auto& field : fFieldTable) {
if (field.first == name) return field.second.fOffset;
}
std::cerr << "ERROR in getFieldOffset : " << name << std::endl;
faustassert(false);
return -1;
}
// Return the int offset of a given field in bytes
int getFieldIntOffset(const string& name)
{
for (auto& field : fFieldTable) {
if (field.first == name) return field.second.fIntOffset;
}
std::cerr << "ERROR in getFieldIntOffset : " << name << std::endl;
faustassert(false);
return -1;
}
// Return the real offset of a given field in bytes
int getFieldRealOffset(const string& name)
{
for (auto& field : fFieldTable) {
if (field.first == name) return field.second.fRealOffset;
}
std::cerr << "ERROR in getFieldRealOffset : " << name << std::endl;
faustassert(false);
return -1;
}
// Return the index of a given field
int getFieldIndex(const string& name)
{
for (auto& field : fFieldTable) {
if (field.first == name) return field.second.fIndex;
}
std::cerr << "ERROR in getFieldIndex : " << name << std::endl;
faustassert(false);
return -1;
}
// Return the memory description of a given field
MemoryDesc& getMemoryDesc(const string& name)
{
for (auto& field : fFieldTable) {
if (field.first == name) return field.second;
}
std::cerr << "ERROR in getMemoryDesc : " << name << std::endl;
faustassert(false);
return fDefault;
}
// Return the struct 'int' size in bytes
int getStructIntSize() { return fStructIntOffset; }
// Return the struct 'real' size in bytes
int getStructRealSize() { return fStructRealOffset; }
// Return the struct size in bytes
int getStructSize() { return fStructIntOffset + fStructRealOffset; }
field_table_type& getFieldTable() { return fFieldTable; }
// Return the struct type
DeclareStructTypeInst* getStructType(const string& name)
{
vector<NamedTyped*> dsp_type_fields;
for (auto& field : fFieldTable) {
// std::cout << "getStructType " << field.first << std::endl;
dsp_type_fields.push_back(InstBuilder::genNamedTyped(field.first, field.second.getTyped()));
}
return InstBuilder::genDeclareStructTypeInst(InstBuilder::genStructTyped(name, dsp_type_fields));
}
// Declarations
virtual void visit(DeclareVarInst* inst)
{
//dump2FIR(inst);
string name = inst->fAddress->getName();
Address::AccessType access = inst->fAddress->getAccess();
bool is_struct = (access & Address::kStruct) || (access & Address::kStaticStruct);
ArrayTyped* array_typed = dynamic_cast<ArrayTyped*>(inst->fType);
if (array_typed && array_typed->fSize > 1) {
if (is_struct) {
if (array_typed->fType->getType() == Typed::kInt32) {
fFieldTable.push_back(make_pair(name, MemoryDesc(fFieldIndex++,
getStructSize(),
getStructIntSize(),
getStructRealSize(),
array_typed->fSize,
array_typed->fType->getType())));
fStructIntOffset += array_typed->getSize();
} else {
fFieldTable.push_back(make_pair(name, MemoryDesc(fFieldIndex++,
getStructSize(),
getStructIntSize(),
getStructRealSize(),
array_typed->fSize,
array_typed->fType->getType())));
fStructRealOffset += array_typed->getSize();
}
} else {
// Should never happen...
faustassert(false);
}
} else {
if (is_struct) {
if (inst->fType->getType() == Typed::kInt32) {
fFieldTable.push_back(make_pair(name, MemoryDesc(fFieldIndex++,
getStructSize(),
getStructIntSize(),
getStructRealSize(),
1, inst->fType->getType())));
fStructIntOffset += inst->fType->getSize();
} else {
fFieldTable.push_back(make_pair(name, MemoryDesc(fFieldIndex++,
getStructSize(),
getStructIntSize(),
getStructRealSize(),
1, inst->fType->getType())));
fStructRealOffset += inst->fType->getSize();
}
} else {
// Local variables declared by [var_num, type] pairs
faustassert(inst->fValue == nullptr);
}
}
}
};
#endif
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