public static SharpDX.Direct3D12.ClearValue FormatToClearValue(H1PixelFormat pixelFormat, Boolean bDepth)
{
SharpDX.Direct3D12.ClearValue clearValue;
clearValue.Color.X = 0.0f;
clearValue.Color.Y = 0.0f;
clearValue.Color.Z = 0.0f;
clearValue.Color.W = 0.0f;
clearValue.Format = H1RHIDefinitionHelper.ConvertToFormat(pixelFormat);
if (clearValue.Format == SharpDX.DXGI.Format.R32_Typeless)
{
clearValue.Format = bDepth ? SharpDX.DXGI.Format.D32_Float : SharpDX.DXGI.Format.R32_Float;
}
clearValue.DepthStencil.Depth = 0.0f;
clearValue.DepthStencil.Stencil = 0;
return(clearValue);
}
public void CopyTextureRegion(H1Texture2D texObject, H1GeneralBuffer generalBuffer)
{
// reuse the memory associated with command recording
// we can only reset when the associated command lists have finished execution on the GPU
m_CommandList.CommandAllocator.Reset();
// a command list can be reset after it has been added to the command queue via ExecuteCommandList
m_CommandList.CommandList.Reset(m_CommandList.CommandAllocator, null);
// @TODO - I need to change this into parallel copy texture region by managing multiple command queue
H1GPUResourceManager refResourceManager = H1Global <H1ManagedRenderer> .Instance.ResourceManager;
// create destination and source locations
// TextureCopyLocation - describe a portion of texture for the purpose of texture copies
TextureCopyLocation destLocation = new TextureCopyLocation(refResourceManager.GetTexture2D(Convert.ToInt32(texObject.Index)), 0);
TextureCopyLocation srcLocation = new TextureCopyLocation(generalBuffer.Resource,
new PlacedSubResourceFootprint() // describes the footprint of a placed subresource, including the offset and the D3D12_SUBRESOURCE_FOOTPRINT
{
Offset = 0, // the offset of the subresource within the parent resource in bytes
Footprint = new SubResourceFootprint() // describes the format, with, height, depth and row-pitch of the subresource into the parent resource
{
Width = Convert.ToInt32(texObject.Width),
Height = Convert.ToInt32(texObject.Height),
Depth = 1,
Format = H1RHIDefinitionHelper.ConvertToFormat(texObject.PixelFormat),
RowPitch = Convert.ToInt32(texObject.Stride),
}
});
m_CommandList.CommandList.ResourceBarrierTransition(texObject.Resource, ResourceStates.GenericRead, ResourceStates.CopyDestination);
m_CommandList.CommandList.CopyTextureRegion(destLocation, 0, 0, 0, srcLocation, null);
m_CommandList.CommandList.ResourceBarrierTransition(texObject.Resource, ResourceStates.CopyDestination, ResourceStates.GenericRead);
m_CommandList.CommandList.Close();
m_DeviceContext.MainCommandListPool.CommandQueue.ExecuteCommandList(m_CommandList.CommandList);
}