public void CreateWindowSizeDependentResources()
{
WaitForGpu();
for (int n = 0; n < FrameCount; n++)
{
DirectXHelper.ReleaseCom(_renderTargets[n]);
_renderTargets[n] = null;
_fenceValues[n] = _fenceValues[_currentFrame];
}
UpdateRenderTargetSize();
DXGI_MODE_ROTATION displayRotation = ComputeDisplayRotation();
bool swapDimensions =
displayRotation == DXGI_MODE_ROTATION.DXGI_MODE_ROTATION_ROTATE90 ||
displayRotation == DXGI_MODE_ROTATION.DXGI_MODE_ROTATION_ROTATE270;
_d3dRenderTargetSize.Width = swapDimensions ? _outputSize.Height : _outputSize.Width;
_d3dRenderTargetSize.Height = swapDimensions ? _outputSize.Width : _outputSize.Height;
uint backBufferWidth = (uint)Math.Round(_d3dRenderTargetSize.Width, MidpointRounding.AwayFromZero);
uint backBufferHeight = (uint)Math.Round(_d3dRenderTargetSize.Height, MidpointRounding.AwayFromZero);
if (_swapChain != null)
{
HRESULT hr = _swapChain.Ptr->ResizeBuffers(FrameCount, backBufferWidth, backBufferHeight, _backBufferFormat,
0);
if (hr == DXGI_ERROR_DEVICE_REMOVED || hr == DXGI_ERROR_DEVICE_RESET)
{
_deviceRemoved = true;
return;
}
else
{
DirectXHelper.ThrowIfFailed(hr);
}
}
else
{
DXGI_SCALING scaling = DisplayMetrics.SupportHighResolutions
? DXGI_SCALING.DXGI_SCALING_NONE
: DXGI_SCALING.DXGI_SCALING_STRETCH;
DXGI_SWAP_CHAIN_DESC1 swapChainDesc;
swapChainDesc.Width = backBufferWidth;
swapChainDesc.Height = backBufferHeight;
swapChainDesc.Format = _backBufferFormat;
swapChainDesc.Stereo = 0;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.BufferUsage = DXGI.DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.BufferCount = FrameCount;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT.DXGI_SWAP_EFFECT_FLIP_DISCARD;
swapChainDesc.Flags = 0;
swapChainDesc.Scaling = scaling;
swapChainDesc.AlphaMode = DXGI_ALPHA_MODE.DXGI_ALPHA_MODE_IGNORE;
{
using ComPtr <IDXGISwapChain1> swapChain = null;
IntPtr pWindow = Marshal.GetIUnknownForObject(_window);
DirectXHelper.ThrowIfFailed(
_dxgiFactory.Ptr->CreateSwapChainForCoreWindow(
_commandQueue,
(IUnknown *)pWindow,
&swapChainDesc,
null,
swapChain.GetAddressOf()));
IDXGISwapChain3 *swapChain3;
Guid iid = DXGI.IID_IDXGISwapChain3;
DirectXHelper.ThrowIfFailed(swapChain.Ptr->QueryInterface(&iid, (void **)&swapChain3));
_swapChain = swapChain3;
}
}
switch (displayRotation)
{
case DXGI_MODE_ROTATION.DXGI_MODE_ROTATION_IDENTITY:
_orientationTransform3D = ScreenRotation.Rotation0;
break;
case DXGI_MODE_ROTATION.DXGI_MODE_ROTATION_ROTATE90:
_orientationTransform3D = ScreenRotation.Rotation270;
break;
case DXGI_MODE_ROTATION.DXGI_MODE_ROTATION_ROTATE180:
_orientationTransform3D = ScreenRotation.Rotation180;
break;
case DXGI_MODE_ROTATION.DXGI_MODE_ROTATION_ROTATE270:
_orientationTransform3D = ScreenRotation.Rotation90;
break;
}
DirectXHelper.ThrowIfFailed(_swapChain.Ptr->SetRotation(displayRotation));
{
_currentFrame = (int)_swapChain.Ptr->GetCurrentBackBufferIndex();
D3D12_CPU_DESCRIPTOR_HANDLE rtvDescriptor;
_rtvHeap.Ptr->GetCPUDescriptorHandleForHeapStart(&rtvDescriptor);
fixed(void *pBuffer = & _renderTargets)
{
var p = (ID3D12Resource **)pBuffer;
Guid iid = D3D12.IID_ID3D12Resource;
for (var n = 0; n < FrameCount; n++)
{
DirectXHelper.ThrowIfFailed(_swapChain.Ptr->GetBuffer((uint)n, &iid, (void **)&p[n]));
_d3dDevice.Ptr->CreateRenderTargetView(
_renderTargets[n],
null,
rtvDescriptor);
rtvDescriptor.Offset((int)_rtvDescriptorSize);
DirectXHelper.NameObject(_renderTargets[n], $"{nameof(_renderTargets)}[{n}]"); // _renderTargets[n]
}
}
}
{
D3D12_HEAP_PROPERTIES depthHeapProperties = CD3DX12_HEAP_PROPERTIES.Create(D3D12_HEAP_TYPE.D3D12_HEAP_TYPE_DEFAULT);
D3D12_RESOURCE_DESC depthResourceDesc =
CD3DX12_RESOURCE_DESC.Tex2D(_depthBufferFormat, backBufferWidth, backBufferHeight, 1, 1);
depthResourceDesc.Flags |= D3D12_RESOURCE_FLAGS.D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL;
D3D12_CLEAR_VALUE depthOptimizedClearValue = CD3DX12_CLEAR_VALUE.Create(_depthBufferFormat, 1, 0);
fixed(ID3D12Resource **p = _depthStencil)
{
Guid iid = D3D12.IID_ID3D12Resource;
DirectXHelper.ThrowIfFailed(_d3dDevice.Ptr->CreateCommittedResource(
&depthHeapProperties,
D3D12_HEAP_FLAGS.D3D12_HEAP_FLAG_NONE,
&depthResourceDesc,
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_DEPTH_WRITE,
&depthOptimizedClearValue,
&iid,
(void **)p
));
DirectXHelper.NameObject(_depthStencil, nameof(_depthStencil));
D3D12_DEPTH_STENCIL_VIEW_DESC dsvDesc = default;
dsvDesc.Format = _depthBufferFormat;
dsvDesc.ViewDimension = D3D12_DSV_DIMENSION.D3D12_DSV_DIMENSION_TEXTURE2D;
dsvDesc.Flags = D3D12_DSV_FLAGS.D3D12_DSV_FLAG_NONE;
D3D12_CPU_DESCRIPTOR_HANDLE handle;
_dsvHeap.Ptr->GetCPUDescriptorHandleForHeapStart(&handle);
_d3dDevice.Ptr->CreateDepthStencilView(_depthStencil.Ptr, &dsvDesc, handle);
}
}
// 0.0f, 0.0f, m_d3dRenderTargetSize.Width, m_d3dRenderTargetSize.Height, 0.0f, 1.0f
_screenViewport = new D3D12_VIEWPORT
{
TopLeftX = 0,
TopLeftY = 0,
Width = (float)_d3dRenderTargetSize.Width,
Height = (float)_d3dRenderTargetSize.Height,
MinDepth = 0,
MaxDepth = 1
};
}
private void CreateDeviceResources()
{
Guid iid;
#if DEBUG
{
using ComPtr <ID3D12Debug> debugController = null;
iid = D3D12.IID_ID3D12Debug;
if (SUCCEEDED(D3D12.D3D12GetDebugInterface(&iid, (void **)debugController.GetAddressOf())))
{
debugController.Ptr->EnableDebugLayer();
}
}
#endif
iid = DXGI.IID_IDXGIFactory4;
IDXGIFactory4 *dxgiFactory;
DirectXHelper.ThrowIfFailed(DXGI.CreateDXGIFactory1(&iid, (void **)&dxgiFactory));
_dxgiFactory = dxgiFactory;
using ComPtr <IDXGIAdapter1> adapter = null;
GetHardwareAdapter(adapter.ReleaseGetAddressOf());
ID3D12Device *d3dDevice;
iid = D3D12.IID_ID3D12Device;
HRESULT hr;
{
hr = D3D12.D3D12CreateDevice(
adapter,
D3D_FEATURE_LEVEL.D3D_FEATURE_LEVEL_11_0,
&iid,
(void **)&d3dDevice
);
#if DEBUG
if (FAILED(hr))
{
using ComPtr <IDXGIAdapter> warpAdapter = null;
iid = DXGI.IID_IDXGIAdapter;
DirectXHelper.ThrowIfFailed(_dxgiFactory.Ptr->EnumWarpAdapter(&iid, (void **)warpAdapter.GetAddressOf()));
iid = D3D12.IID_ID3D12Device1;
hr = D3D12.D3D12CreateDevice(
warpAdapter,
D3D_FEATURE_LEVEL.D3D_FEATURE_LEVEL_11_0,
&iid,
(void **)&d3dDevice
);
}
#endif
}
_d3dDevice = d3dDevice;
DirectXHelper.ThrowIfFailed(hr);
D3D12_COMMAND_QUEUE_DESC queueDesc;
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAGS.D3D12_COMMAND_QUEUE_FLAG_NONE;
queueDesc.Type = D3D12_COMMAND_LIST_TYPE.D3D12_COMMAND_LIST_TYPE_DIRECT;
ID3D12CommandQueue *commandQueue;
{
iid = D3D12.IID_ID3D12CommandQueue;
DirectXHelper.ThrowIfFailed(_d3dDevice.Ptr->CreateCommandQueue(&queueDesc, &iid, (void **)&commandQueue));
}
_commandQueue = commandQueue;
DirectXHelper.NameObject(_commandQueue, nameof(_commandQueue));
D3D12_DESCRIPTOR_HEAP_DESC rtvHeapDesc;
rtvHeapDesc.NumDescriptors = FrameCount;
rtvHeapDesc.Type = D3D12_DESCRIPTOR_HEAP_TYPE.D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
rtvHeapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAGS.D3D12_DESCRIPTOR_HEAP_FLAG_NONE;
ID3D12DescriptorHeap *rtvHeap;
{
iid = D3D12.IID_ID3D12DescriptorHeap;
DirectXHelper.ThrowIfFailed(_d3dDevice.Ptr->CreateDescriptorHeap(&rtvHeapDesc, &iid, (void **)&rtvHeap));
}
_rtvHeap = rtvHeap;
DirectXHelper.NameObject(_rtvHeap, nameof(_rtvHeap));
_rtvDescriptorSize =
_d3dDevice.Ptr->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE
.D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
D3D12_DESCRIPTOR_HEAP_DESC dsvHeapDesc;
dsvHeapDesc.NumDescriptors = 1;
dsvHeapDesc.Type = D3D12_DESCRIPTOR_HEAP_TYPE.D3D12_DESCRIPTOR_HEAP_TYPE_DSV;
dsvHeapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAGS.D3D12_DESCRIPTOR_HEAP_FLAG_NONE;
ID3D12DescriptorHeap *dsvHeap;
{
iid = D3D12.IID_ID3D12DescriptorHeap;
DirectXHelper.ThrowIfFailed(_d3dDevice.Ptr->CreateDescriptorHeap(&dsvHeapDesc, &iid, (void **)&dsvHeap));
}
_dsvHeap = dsvHeap;
DirectXHelper.NameObject(_dsvHeap, nameof(_dsvHeap));
fixed(CommandAllocators_e__FixedBuffer *pBuffer = &_commandAllocators)
{
var p = (ID3D12CommandAllocator **)pBuffer;
iid = D3D12.IID_ID3D12CommandAllocator;
for (var n = 0; n < FrameCount; n++)
{
DirectXHelper.ThrowIfFailed(_d3dDevice.Ptr->CreateCommandAllocator(
D3D12_COMMAND_LIST_TYPE.D3D12_COMMAND_LIST_TYPE_DIRECT,
&iid,
(void **)(p + n)));
}
}
ID3D12Fence *fence;
{
iid = D3D12.IID_ID3D12Fence;
DirectXHelper.ThrowIfFailed(
_d3dDevice.Ptr->CreateFence(_fenceValues[_currentFrame],
D3D12_FENCE_FLAGS.D3D12_FENCE_FLAG_NONE,
&iid,
(void **)&fence));
_fenceValues[_currentFrame]++;
}
_fence = fence;
DirectXHelper.NameObject(_fence, nameof(_fence));
_fenceEvent = Kernel32.CreateEvent(null, FALSE, FALSE, null);
if (_fenceEvent == IntPtr.Zero)
{
DirectXHelper.ThrowIfFailed(Marshal.GetLastWin32Error());
}
}