//-----------------------------------------------------------------------------
GpuPtr Helper::getGpu(int index)
{
// Check it against selection criteria.
pair_int gpuBlock = selectDeviceAndBlock(index);
if (-1 == gpuBlock.first) return GpuPtr();
scoped_lock lock(mutex);
// First check to see if this GPU device has been initialized.
DevicePtr device;
DevicelPtrMap::iterator dit = devPtrMap.find(gpuBlock.first);
if (dit == devPtrMap.end())
{
device.reset(new Device(gpuBlock.first));
// Double check to make sure our device is OK
if (-1 == device->ID()) return GpuPtr();
devPtrMap.insert(std::make_pair(gpuBlock.first, device));
}
else
{
device = dit->second;
// Make sure we activate this per-thread.
device->setDevice();
}
// Now that we have a device, get the block implementation handle.
GpuPtr impl;
GpuPtrMap::iterator it = gpuPtrMap.find(index);
if (it == gpuPtrMap.end())
{
impl.reset(new Gpu(device));
gpuPtrMap.insert(std::make_pair(index, impl));
}
else
{
impl = it->second;
}
if (!atExitRegistered)
{
atexit(Helper::destroy);
atExitRegistered = true;
}
return impl;
}
bool Create(HWND hWnd)
{
// デバイスとスワップチェーンの作成。
RECT rectClient;
GetClientRect(hWnd, &rectClient);
DXGI_SWAP_CHAIN_DESC sd;
ZeroMemory(&sd, sizeof(sd));
sd.BufferCount = 1;
sd.BufferDesc.Width = rectClient.right - rectClient.left;
sd.BufferDesc.Height = rectClient.bottom - rectClient.top;
sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.BufferDesc.RefreshRate.Numerator = 60;
sd.BufferDesc.RefreshRate.Denominator = 1;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.OutputWindow = hWnd;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;//1;
sd.Windowed = TRUE;
sd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
D3D_FEATURE_LEVEL featureLevel;
IDXGISwapChain* pSwapChainTmp;
ID3D11Device* pDeviceTmp;
ID3D11DeviceContext* pDeviceContextTmp;
HRESULT hr = D3D11CreateDeviceAndSwapChain(NULL // pAdapter
, D3D_DRIVER_TYPE_HARDWARE // DriverType
, NULL // Software
, 0 // Flags
, NULL // pFeatureLevels
, 0// FeatureLevels
, D3D11_SDK_VERSION
, &sd
, &pSwapChainTmp
, &pDeviceTmp
, &featureLevel
, &pDeviceContextTmp
);
if (FAILED(hr))
{
DebugTraceHresult(hr);
return false;
}
_pSwapChain.reset(pSwapChainTmp, &SafeRelease<SwapChainPtr::element_type>);
_pDevice.reset(pDeviceTmp, &SafeRelease<DevicePtr::element_type>);
_pDeviceContext.reset(pDeviceContextTmp, &SafeRelease<DeviceContextPtr::element_type>);
switch (featureLevel)
{
case D3D_FEATURE_LEVEL_11_0: DebugTrace(_T("D3D_FEATURE_LEVEL_11_0")); break;
case D3D_FEATURE_LEVEL_10_0: DebugTrace(_T("D3D_FEATURE_LEVEL_10_0")); break;
case D3D_FEATURE_LEVEL_10_1: DebugTrace(_T("D3D_FEATURE_LEVEL_10_1")); break;
case D3D_FEATURE_LEVEL_9_3: DebugTrace(_T("D3D_FEATURE_LEVEL_9_3")); break;
case D3D_FEATURE_LEVEL_9_2: DebugTrace(_T("D3D_FEATURE_LEVEL_9_2")); break;
case D3D_FEATURE_LEVEL_9_1: DebugTrace(_T("D3D_FEATURE_LEVEL_9_1")); break;
default: DebugTrace(_T("Unknown")); break;
}
return true;
}
