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FST building/traversal in place

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This commit is contained in:
Jack Andersen
2015-06-29 14:07:46 -10:00
parent 3f31ad21a0
commit ec8db1694b
8 changed files with 336 additions and 182 deletions
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42
lib/DiscGCN.cpp
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@@ -3,10 +3,50 @@
namespace NOD
{
class PartitionGCN : public DiscBase::IPartition
{
public:
PartitionGCN(const DiscGCN& parent, Kind kind, size_t offset)
: IPartition(parent, kind, offset)
{
/* GCN-specific header reads */
std::unique_ptr<DiscBase::IPartReadStream> s = beginReadStream(0x420);
uint32_t vals[3];
s->read(vals, 12);
m_dolOff = SBig(vals[0]);
m_fstOff = SBig(vals[1]);
m_fstSz = SBig(vals[2]);
/* Yay files!! */
parseFST(*s.get());
}
class PartReadStream : public DiscBase::IPartReadStream
{
const PartitionGCN& m_parent;
std::unique_ptr<IDiscIO::IReadStream> m_dio;
public:
PartReadStream(const PartitionGCN& parent, size_t offset)
: m_parent(parent)
{m_dio = m_parent.m_parent.getDiscIO().beginReadStream(offset);}
void seek(size_t offset, int whence)
{m_dio->seek(offset, whence);}
size_t read(void* buf, size_t length)
{return m_dio->read(buf, length);}
};
std::unique_ptr<DiscBase::IPartReadStream> beginReadStream(size_t offset) const
{
return std::unique_ptr<DiscBase::IPartReadStream>(new PartReadStream(*this, offset));
}
};
DiscGCN::DiscGCN(std::unique_ptr<IDiscIO>&& dio)
: DiscBase(std::move(dio))
{
/* One lone partition for GCN */
m_partitions.emplace_back(new PartitionGCN(*this, IPartition::PART_DATA, 0));
}
bool DiscGCN::commit()