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Add support for multiple GPUs on Windows #187

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6 changes: 5 additions & 1 deletion libvpl/src/windows/mfx_library_iterator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -619,9 +619,13 @@ mfxStatus MFXLibraryIterator::GetRegkeyDir(std::wstring &regDir, size_t length,
mfxStatus sts = MFX_ERR_UNSUPPORTED;
MFX::MFXLibraryIterator libIterator;
wchar_t wRegDir[MFX_MAX_DLL_PATH];
int adapterNum = 0;

regDir.clear();
sts = libIterator.Init(MFX_LIB_HARDWARE, MFX_IMPL_VIA_D3D11, 0, storageID);
do {
sts = libIterator.Init(MFX_LIB_HARDWARE, MFX_IMPL_VIA_D3D11, adapterNum, storageID);
adapterNum++;
} while (sts == MFX_ERR_NONE && !libIterator.isIntelAdapter());
if (sts)
return MFX_ERR_UNSUPPORTED;

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3 changes: 3 additions & 0 deletions libvpl/src/windows/mfx_library_iterator.h
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Expand Up @@ -99,6 +99,9 @@ class MFXLibraryIterator {
mfxU32 deviceID,
int storageID);
static mfxStatus GetRegkeyDir(std::wstring &regDir, size_t length, int storageID);
bool isIntelAdapter() const {
return m_vendorID == INTEL_VENDOR_ID;
}

protected:
// Release the iterator
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