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wait for occlusion

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This commit is contained in:
David Rose 2007-06-04 18:39:33 +00:00
parent fe826af9b0
commit 9dbd150169
1 changed files with 7 additions and 5 deletions
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12
panda/src/dxgsg9/dxOcclusionQueryContext9.cxx
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@ -62,9 +62,7 @@ is_answer_ready() const {
////////////////////////////////////////////////////////////////////
void DXOcclusionQueryContext9::
waiting_for_answer() {
DWORD result;
PStatTimer timer(DXGraphicsStateGuardian9::_wait_occlusion_pcollector);
HRESULT hr = _query->GetData(&result, sizeof(result), D3DGETDATA_FLUSH);
get_num_fragments();
}
////////////////////////////////////////////////////////////////////
@ -89,12 +87,16 @@ get_num_fragments() const {
{
// The answer is not ready; this call will block.
PStatTimer timer(DXGraphicsStateGuardian9::_wait_occlusion_pcollector);
hr = _query->GetData(&result, sizeof(result), D3DGETDATA_FLUSH);
while (hr == S_FALSE) {
hr = _query->GetData(&result, sizeof(result), D3DGETDATA_FLUSH);
}
}
if (hr != S_OK) {
if (FAILED(hr)) {
// Some failure, e.g. devicelost. Return a nonzero value as a
// worst-case answer.
dxgsg9_cat.info()
<< "occlusion query failed " << D3DERRORSTRING(hr);
return 1;
}