DWORD CXySubPicQueue::ThreadProc()
{
SetThreadName(DWORD(-1), "Subtitle Renderer Thread");
SetThreadPriority(m_hThread, THREAD_PRIORITY_ABOVE_NORMAL);
bool bAgain = true;
for (;;) {
DWORD Ret = WaitForMultipleObjects(EVENT_COUNT, m_ThreadEvents, FALSE, bAgain ? 0 : INFINITE);
bAgain = false;
if (Ret == WAIT_TIMEOUT) {
;
} else if ((Ret - WAIT_OBJECT_0) != EVENT_TIME) {
break;
}
double fps = m_fps;
REFERENCE_TIME rtTimePerFrame = (REFERENCE_TIME)(10000000.0 / fps);
REFERENCE_TIME rtNow = UpdateQueue();
int nMaxSubPic = m_nMaxSubPic;
CComPtr<ISubPicProvider> pSubPicProvider;
GetSubPicProvider(&pSubPicProvider);
CComQIPtr<IXyCompatProvider> pXySubPicProvider = pSubPicProvider;
if (pXySubPicProvider && SUCCEEDED(pSubPicProvider->Lock())) {
for (REFERENCE_TIME rtStart = rtNow; !m_fBreakBuffering && GetQueueCount() < nMaxSubPic; rtStart += rtTimePerFrame) {
REFERENCE_TIME rtStop = rtStart + rtTimePerFrame;
if (m_rtNow >= rtStart) {
if (m_rtNow >= rtStop) {
continue;
}
}
if (rtStart >= m_rtNow + 60 * 10000000i64) { // we are already one minute ahead, this should be enough
break;
}
if (m_rtNow > rtStop) {
TRACE(_T("BEHIND\n"));
}
HRESULT hr = pXySubPicProvider->RequestFrame(rtStart, rtStop, INFINITE);
if (SUCCEEDED(hr)) {
ULONGLONG id;
hr = pXySubPicProvider->GetID(&id);
if (SUCCEEDED(hr)) {
SIZE MaxTextureSize, VirtualSize;
POINT VirtualTopLeft;
HRESULT hr2;
if (SUCCEEDED(hr2 = pSubPicProvider->GetTextureSize(0, MaxTextureSize, VirtualSize, VirtualTopLeft))) {
m_pAllocator->SetMaxTextureSize(MaxTextureSize);
}
if (m_llSubId == id && !m_Queue.IsEmpty()) { // same subtitle as last time
CComPtr<ISubPic> pSubPic = m_Queue.GetTail();
pSubPic->SetStop(rtStop);
#if SUBPIC_TRACE_LEVEL > 1
CRect r;
pSubPic->GetDirtyRect(&r);
TRACE(_T("Skip: %f->%f %dx%d\n"), double(pSubPic->GetStart()) / 10000000.0, double(pSubPic->GetStop()) / 10000000.0, r.Width(), r.Height());
#endif
continue;
} else {
CComPtr<ISubPic> pStatic;
if (FAILED(m_pAllocator->GetStatic(&pStatic))) {
break;
}
pStatic->SetInverseAlpha(true);
hr = RenderTo(pStatic, rtStart, rtStop, fps, true);
#if SUBPIC_TRACE_LEVEL > 0
CRect r;
pStatic->GetDirtyRect(&r);
TRACE(_T("Render: %f->%f %dx%d\n"), double(rtStart) / 10000000.0, double(rtStop) / 10000000.0, r.Width(), r.Height());
#endif
if (FAILED(hr)) {
break;
}
CComPtr<ISubPic> pDynamic;
if (FAILED(m_pAllocator->AllocDynamic(&pDynamic))
|| FAILED(pStatic->CopyTo(pDynamic))) {
break;
}
if (SUCCEEDED(hr2)) {
pDynamic->SetVirtualTextureSize(VirtualSize, VirtualTopLeft);
}
RelativeTo relativeTo;
if (SUCCEEDED(pSubPicProvider->GetRelativeTo(0, relativeTo))) {
pDynamic->SetRelativeTo(relativeTo);
}
AppendQueue(pDynamic);
m_llSubId = id;
bAgain = true;
}
}
}
}
pSubPicProvider->Unlock();
}
if (m_fBreakBuffering) {
bAgain = true;
CAutoLock cQueueLock(&m_csQueueLock);
REFERENCE_TIME rtInvalidate = m_rtInvalidate;
POSITION Iter = m_Queue.GetHeadPosition();
while (Iter) {
POSITION ThisPos = Iter;
ISubPic* pSubPic = m_Queue.GetNext(Iter);
REFERENCE_TIME rtStart = pSubPic->GetStart();
REFERENCE_TIME rtStop = pSubPic->GetStop();
if (rtStop > rtInvalidate) {
#if SUBPIC_TRACE_LEVEL >= 0
TRACE(_T("Removed subtitle because of invalidation: %f->%f\n"), double(rtStart) / 10000000.0, double(rtStop) / 10000000.0);
#endif
m_Queue.RemoveAt(ThisPos);
continue;
}
}
/*
while (GetCount() && GetTail()->GetStop() > rtInvalidate)
{
if (GetTail()->GetStart() < rtInvalidate) GetTail()->SetStop(rtInvalidate);
else
{
RemoveTail();
}
}
*/
m_fBreakBuffering = false;
}
}
return 0;
}
STDMETHODIMP_(bool) CXySubPicQueueNoThread::LookupSubPic(REFERENCE_TIME rtNow, CComPtr<ISubPic>& ppSubPic)
{
CComPtr<ISubPic> pSubPic;
CComPtr<ISubPicProvider> pSubPicProvider;
GetSubPicProvider(&pSubPicProvider);
CComQIPtr<IXyCompatProvider> pXySubPicProvider = pSubPicProvider;
if (pXySubPicProvider) {
double fps = m_fps;
REFERENCE_TIME rtTimePerFrame = (REFERENCE_TIME)(10000000.0 / fps);
REFERENCE_TIME rtStart = rtNow;
REFERENCE_TIME rtStop = rtNow + rtTimePerFrame;
HRESULT hr = pXySubPicProvider->RequestFrame(rtStart, rtStop, (DWORD)(1000.0 / fps));
if (SUCCEEDED(hr)) {
ULONGLONG id;
hr = pXySubPicProvider->GetID(&id);
if (SUCCEEDED(hr)) {
SIZE MaxTextureSize, VirtualSize;
POINT VirtualTopLeft;
HRESULT hr2;
if (SUCCEEDED(hr2 = pSubPicProvider->GetTextureSize(0, MaxTextureSize, VirtualSize, VirtualTopLeft))) {
m_pAllocator->SetMaxTextureSize(MaxTextureSize);
}
if (!pSubPic) {
if (FAILED(m_pAllocator->AllocDynamic(&pSubPic))) {
return false;
}
}
if (m_pSubPic && m_llSubId == id) { // same subtitle as last time
pSubPic->SetStop(rtStop);
ppSubPic = m_pSubPic;
} else if (m_pAllocator->IsDynamicWriteOnly()) {
CComPtr<ISubPic> pStatic;
hr = m_pAllocator->GetStatic(&pStatic);
if (SUCCEEDED(hr)) {
pStatic->SetInverseAlpha(true);
hr = RenderTo(pStatic, rtStart, rtStop, fps, true);
}
if (SUCCEEDED(hr)) {
hr = pStatic->CopyTo(pSubPic);
}
if (SUCCEEDED(hr)) {
ppSubPic = pSubPic;
m_llSubId = id;
}
} else {
pSubPic->SetInverseAlpha(true);
if (SUCCEEDED(RenderTo(pSubPic, rtStart, rtStop, fps, true))) {
ppSubPic = pSubPic;
m_llSubId = id;
}
}
if (SUCCEEDED(hr2)) {
pSubPic->SetVirtualTextureSize(VirtualSize, VirtualTopLeft);
}
RelativeTo relativeTo;
if (SUCCEEDED(pSubPicProvider->GetRelativeTo(0, relativeTo))) {
pSubPic->SetRelativeTo(relativeTo);
}
}
}
if (ppSubPic) {
CAutoLock cAutoLock(&m_csLock);
m_pSubPic = ppSubPic;
}
}
return !!ppSubPic;
}
