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Added r_graphicsAdapter to select a specific GPU

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This commit is contained in:
Robert Beckebans 2023-02-28 22:01:26 +01:00
parent b8a99d1330
commit 513674c4bf
1 changed files with 27 additions and 1 deletions
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28
neo/sys/DeviceManager_DX12.cpp
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@ -43,6 +43,8 @@ using nvrhi::RefCountPtr;
#define HR_RETURN(hr) if(FAILED(hr)) return false
idCVar r_graphicsAdapter( "r_graphicsAdapter", "", CVAR_RENDERER | CVAR_INIT | CVAR_ARCHIVE, "Substring in the name the DXGI graphics adapter to select a certain GPU" );
class DeviceManager_DX12 : public DeviceManager
{
RefCountPtr<ID3D12Device> m_Device12;
@ -202,6 +204,22 @@ void DeviceManager_DX12::ReportLiveObjects()
}
}
std::wstring StrToWS( const std::string& str )
{
int sizeNeeded = MultiByteToWideChar( CP_UTF8, 0, &str[0], ( int )str.size(), NULL, 0 );
std::wstring wstrTo( sizeNeeded, 0 );
MultiByteToWideChar( CP_UTF8, 0, &str[0], ( int )str.size(), &wstrTo[0], sizeNeeded );
return wstrTo;
}
std::wstring StrToWS( const idStr& str )
{
int sizeNeeded = MultiByteToWideChar( CP_UTF8, 0, str.c_str(), str.Length(), NULL, 0 );
std::wstring wstrTo( sizeNeeded, 0 );
MultiByteToWideChar( CP_UTF8, 0, str.c_str(), str.Length(), &wstrTo[0], sizeNeeded );
return wstrTo;
}
bool DeviceManager_DX12::CreateDeviceAndSwapChain()
{
RefCountPtr<IDXGIAdapter> targetAdapter;
@ -212,7 +230,15 @@ bool DeviceManager_DX12::CreateDeviceAndSwapChain()
}
else
{
targetAdapter = FindAdapter( deviceParms.adapterNameSubstring );
idStr adapterName( r_graphicsAdapter.GetString() );
if( !adapterName.IsEmpty() )
{
targetAdapter = FindAdapter( StrToWS( adapterName ) );
}
else
{
targetAdapter = FindAdapter( deviceParms.adapterNameSubstring );
}
if( !targetAdapter )
{