std::vector<GPU_DEVICE> RenderContext::enumGpuDevicesNV(HGPUNV gpu) const
{
std::vector<GPU_DEVICE> devices;
if(WGLEW_NV_gpu_affinity)
{
GPU_DEVICE device;
for (UINT deviceIndex = 0;wglEnumGpuDevicesNV(gpu, deviceIndex, &device);++deviceIndex)
{
devices.push_back(device);
}
}
return devices;
}
int main( const int argc, char** argv )
{
if( !initWGLEW( ))
std::cerr << "WGL extension query failed" << std::endl;
else if( !WGLEW_NV_gpu_affinity )
std::cerr << "WGL_NV_gpu_affinity unsupported" << std::endl;
else for( UINT gpu = 0; true; ++gpu )
{
HGPUNV hGPU = 0;
if( !wglEnumGpusNV( gpu, &hGPU ))
break;
GPU_DEVICE gpuDevice;
gpuDevice.cb = sizeof( gpuDevice );
const bool found = wglEnumGpuDevicesNV( hGPU, 0, &gpuDevice );
assert( found );
std::cout << "GPU " << gpu << ": " << gpuDevice.DeviceString;
if( gpuDevice.Flags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP )
{
const RECT& rect = gpuDevice.rcVirtualScreen;
std::cout << " used on [" << rect.left << ' ' << rect.top << ' '
<< rect.right - rect.left << ' '
<< rect.bottom - rect.top << ']';
}
else
std::cout << " offline";
std::cout << std::endl;
}
std::cout << "Press Enter to exit..." << std::endl;
char foo[256];
std::cin.getline( foo, 256 );
return EXIT_SUCCESS;
}
//---------------------------------------------------------------------------
// WGL init
//---------------------------------------------------------------------------
bool Pipe::configInit()
{
if ( !_configInitWGLEW() )
return false;
PixelViewport pvp = getPipe()->getPixelViewport();
if( pvp.isValid( ))
return true;
// setup pvp
// ...using gpu affinity API
HGPUNV hGPU = 0;
if( !_getGPUHandle( hGPU ))
return false;
if( hGPU != 0 )
{
GPU_DEVICE gpuDevice;
gpuDevice.cb = sizeof( gpuDevice );
const bool found = wglEnumGpuDevicesNV( hGPU, 0, &gpuDevice );
EQASSERT( found );
if( gpuDevice.Flags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP )
{
const RECT& rect = gpuDevice.rcVirtualScreen;
pvp.x = rect.left;
pvp.y = rect.top;
pvp.w = rect.right - rect.left;
pvp.h = rect.bottom - rect.top;
}
else
{
pvp.x = 0;
pvp.y = 0;
pvp.w = 4096;
pvp.h = 4096;
}
}
else // ... using Win32 API
{
HDC dc = createWGLDisplayDC();
pvp.x = 0;
pvp.y = 0;
if( dc )
{
pvp.w = GetDeviceCaps( dc, HORZRES );
pvp.h = GetDeviceCaps( dc, VERTRES );
DeleteDC( dc );
}
else
{
EQWARN << "Can't create display dc query pipe resolution: "
<< co::base::sysError << std::endl;
pvp.w = 2048;
pvp.h = 2048;
}
}
getPipe()->setPixelViewport( pvp );
EQINFO << "Pipe pixel viewport " << pvp << std::endl;
return true;
}
