mirror of https://github.com/AxioDL/metaforce.git
124 lines
3.1 KiB
C++
124 lines
3.1 KiB
C++
#include "CDvdFile.hpp"
|
|
#include "CDvdRequest.hpp"
|
|
|
|
namespace urde
|
|
{
|
|
|
|
hecl::ProjectPath CDvdFile::m_DvdRoot;
|
|
|
|
class CFileDvdRequest : public IDvdRequest
|
|
{
|
|
CDvdFile& m_dvdFile;
|
|
void* m_buf;
|
|
u32 m_len;
|
|
ESeekOrigin m_whence;
|
|
int m_offset;
|
|
bool m_cancel = false;
|
|
bool m_complete = false;
|
|
public:
|
|
~CFileDvdRequest()
|
|
{
|
|
PostCancelRequest();
|
|
}
|
|
|
|
void WaitUntilComplete()
|
|
{
|
|
while (!m_complete && !m_cancel)
|
|
{
|
|
std::unique_lock<std::mutex> lk(CDvdFile::m_WaitMutex);
|
|
}
|
|
}
|
|
bool IsComplete() {return m_complete;}
|
|
void PostCancelRequest()
|
|
{
|
|
std::unique_lock<std::mutex> lk(CDvdFile::m_WorkerMutex);
|
|
m_cancel = true;
|
|
}
|
|
|
|
EMediaType GetMediaType() const
|
|
{
|
|
return EMediaType::File;
|
|
}
|
|
|
|
CFileDvdRequest(CDvdFile& file, void* buf, u32 len, ESeekOrigin whence, int off)
|
|
: m_dvdFile(file), m_buf(buf), m_len(len), m_whence(whence), m_offset(off) {}
|
|
|
|
void DoRequest()
|
|
{
|
|
if (m_cancel)
|
|
return;
|
|
if (m_whence == ESeekOrigin::Cur && m_offset == 0)
|
|
m_dvdFile.m_reader.readBytesToBuf(m_buf, m_len);
|
|
else
|
|
{
|
|
m_dvdFile.m_reader.seek(m_offset, athena::SeekOrigin(m_whence));
|
|
m_dvdFile.m_reader.readBytesToBuf(m_buf, m_len);
|
|
}
|
|
m_complete = true;
|
|
}
|
|
};
|
|
|
|
std::thread CDvdFile::m_WorkerThread;
|
|
std::mutex CDvdFile::m_WorkerMutex;
|
|
std::condition_variable CDvdFile::m_WorkerCV;
|
|
std::mutex CDvdFile::m_WaitMutex;
|
|
bool CDvdFile::m_WorkerRun = false;
|
|
std::vector<std::shared_ptr<IDvdRequest>> CDvdFile::m_RequestQueue;
|
|
void CDvdFile::WorkerProc()
|
|
{
|
|
while (m_WorkerRun)
|
|
{
|
|
std::unique_lock<std::mutex> lk(CDvdFile::m_WorkerMutex);
|
|
while (CDvdFile::m_RequestQueue.size())
|
|
{
|
|
std::vector<std::shared_ptr<IDvdRequest>> swapQueue;
|
|
swapQueue.swap(CDvdFile::m_RequestQueue);
|
|
lk.unlock();
|
|
std::unique_lock<std::mutex> waitlk(CDvdFile::m_WaitMutex);
|
|
for (std::shared_ptr<IDvdRequest>& req : swapQueue)
|
|
{
|
|
CFileDvdRequest& concreteReq = static_cast<CFileDvdRequest&>(*req);
|
|
concreteReq.DoRequest();
|
|
}
|
|
waitlk.unlock();
|
|
lk.lock();
|
|
}
|
|
if (!m_WorkerRun)
|
|
break;
|
|
m_WorkerCV.wait(lk);
|
|
}
|
|
}
|
|
|
|
std::shared_ptr<IDvdRequest> CDvdFile::AsyncSeekRead(void* buf, u32 len, ESeekOrigin whence, int off)
|
|
{
|
|
std::shared_ptr<IDvdRequest> ret =
|
|
std::make_shared<CFileDvdRequest>(*this, buf, len, whence, off);
|
|
std::unique_lock<std::mutex> lk(CDvdFile::m_WorkerMutex);
|
|
m_RequestQueue.emplace_back(ret);
|
|
lk.unlock();
|
|
m_WorkerCV.notify_one();
|
|
return ret;
|
|
}
|
|
|
|
void CDvdFile::Initialize(const hecl::ProjectPath& path)
|
|
{
|
|
m_DvdRoot = path;
|
|
if (m_WorkerRun)
|
|
return;
|
|
m_WorkerRun = true;
|
|
m_WorkerThread = std::thread(WorkerProc);
|
|
}
|
|
|
|
void CDvdFile::Shutdown()
|
|
{
|
|
if (!m_WorkerRun)
|
|
return;
|
|
m_WorkerRun = false;
|
|
m_WorkerCV.notify_one();
|
|
if (m_WorkerThread.joinable())
|
|
m_WorkerThread.join();
|
|
m_RequestQueue.clear();
|
|
}
|
|
|
|
}
|