public void ResourceFromTexture3D(Device device, Type bufferType)
{
using Texture3D <float> buffer = device.Get().AllocateTexture3D <float>(bufferType, 16, 16, 4);
using ComPtr <ID3D12Resource> d3D12Resource = default;
InteropServices.GetID3D12Resource(buffer, Windows.__uuidof <ID3D12Resource>(), (void **)d3D12Resource.GetAddressOf());
Assert.IsTrue(d3D12Resource.Get() != null);
Assert.AreEqual(d3D12Resource.Get()->GetDesc().Dimension, D3D12_RESOURCE_DIMENSION_TEXTURE3D);
d3D12Resource.Dispose();
int hResult = InteropServices.TryGetID3D12Resource(buffer, Windows.__uuidof <ID3D12Resource>(), (void **)d3D12Resource.GetAddressOf());
Assert.AreEqual(hResult, S.S_OK);
Assert.IsTrue(d3D12Resource.Get() != null);
Assert.AreEqual(d3D12Resource.Get()->GetDesc().Dimension, D3D12_RESOURCE_DIMENSION_TEXTURE3D);
}
public void ResourceFromBuffer(Device device, Type bufferType)
{
using Buffer <float> buffer = device.Get().AllocateBuffer <float>(bufferType, 128);
using ComPtr <ID3D12Resource> d3D12Resource = default;
InteropServices.GetID3D12Resource(buffer, FX.__uuidof <ID3D12Resource>(), (void **)d3D12Resource.GetAddressOf());
Assert.IsTrue(d3D12Resource.Get() != null);
Assert.AreEqual(d3D12Resource.Get()->GetDesc().Dimension, D3D12_RESOURCE_DIMENSION_BUFFER);
d3D12Resource.Dispose();
int hResult = InteropServices.TryGetID3D12Resource(buffer, FX.__uuidof <ID3D12Resource>(), (void **)d3D12Resource.GetAddressOf());
Assert.AreEqual(hResult, FX.S_OK);
Assert.IsTrue(d3D12Resource.Get() != null);
Assert.AreEqual(d3D12Resource.Get()->GetDesc().Dimension, D3D12_RESOURCE_DIMENSION_BUFFER);
}
/// <inheritdoc/>
public override unsafe void OnUpdate(TimeSpan time)
{
if (this.isResizePending)
{
ApplyResize();
this.isResizePending = false;
}
// Generate the new frame
Gpu.Default.For(this.texture !.Width, this.texture.Height, this.shaderFactory(this.texture, time));
using ComPtr <ID3D12Resource> d3D12Resource = default;
// Get the underlying ID3D12Resource pointer for the texture
_ = InteropServices.TryGetID3D12Resource(this.texture, FX.__uuidof <ID3D12Resource>(), (void **)d3D12Resource.GetAddressOf());
// Get the target back buffer to update
ID3D12Resource *d3D12ResourceBackBuffer = this.currentBufferIndex switch
{
0 => this.d3D12Resource0.Get(),
1 => this.d3D12Resource1.Get(),
_ => null
};
this.currentBufferIndex ^= 1;
// Reset the command list and command allocator
this.d3D12CommandAllocator.Get()->Reset();
this.d3D12GraphicsCommandList.Get()->Reset(this.d3D12CommandAllocator.Get(), null);
D3D12_RESOURCE_BARRIER *d3D12ResourceBarriers = stackalloc D3D12_RESOURCE_BARRIER[]
{
D3D12_RESOURCE_BARRIER.InitTransition(
d3D12Resource.Get(),
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_UNORDERED_ACCESS,
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_COPY_SOURCE),
D3D12_RESOURCE_BARRIER.InitTransition(
d3D12ResourceBackBuffer,
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_COPY_DEST)
};
// Transition the resources to COPY_DEST and COPY_SOURCE respectively
d3D12GraphicsCommandList.Get()->ResourceBarrier(2, d3D12ResourceBarriers);
// Copy the generated frame to the target back buffer
d3D12GraphicsCommandList.Get()->CopyResource(d3D12ResourceBackBuffer, d3D12Resource.Get());
d3D12ResourceBarriers[0] = D3D12_RESOURCE_BARRIER.InitTransition(
d3D12Resource.Get(),
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_COPY_SOURCE,
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_UNORDERED_ACCESS);
d3D12ResourceBarriers[1] = D3D12_RESOURCE_BARRIER.InitTransition(
d3D12ResourceBackBuffer,
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_COPY_DEST,
D3D12_RESOURCE_STATES.D3D12_RESOURCE_STATE_COMMON);
// Transition the resources back to COMMON and UNORDERED_ACCESS respectively
d3D12GraphicsCommandList.Get()->ResourceBarrier(2, d3D12ResourceBarriers);
d3D12GraphicsCommandList.Get()->Close();
// Execute the command list to perform the copy
this.d3D12CommandQueue.Get()->ExecuteCommandLists(1, (ID3D12CommandList **)d3D12GraphicsCommandList.GetAddressOf());
this.d3D12CommandQueue.Get()->Signal(this.d3D12Fence.Get(), this.nextD3D12FenceValue);
// Present the new frame
this.dxgiSwapChain1.Get()->Present(0, 0);
if (this.nextD3D12FenceValue > this.d3D12Fence.Get()->GetCompletedValue())
{
this.d3D12Fence.Get()->SetEventOnCompletion(this.nextD3D12FenceValue, default);
}
this.nextD3D12FenceValue++;
}
}
}