public static H1GpuTexture2D Create(Vector4 clearValue, H1Texture2D.Description desc, H1SubresourceData initialData)
{
H1GpuTexture2D newTex2D = new H1GpuTexture2D();
CreatePlatformDependent(clearValue, desc, initialData, ref newTex2D);
if (newTex2D.Resource == null)
{
newTex2D.Destroy();
return(null);
}
return(newTex2D);
}
public UInt64 RequestUpload(H1DX12Resource destResource, UInt32 subresource, H1SubresourceData desc, UInt64 size)
{
return(0);
}
public H1DX12Resource(Resource resource, ResourceStates initialState, ResourceDescription desc, H1SubresourceData[] initialData = null, UInt32 numInitialData = 0)
{
m_Resource = resource;
m_Desc = desc;
if (m_Resource != null)
{
HeapProperties heapProperties;
HeapFlags heapFlag;
m_Resource.GetHeapProperties(out heapProperties, out heapFlag);
m_HeapType = heapProperties.Type;
// certain heaps are restricted to certain 'ResourceStates'
if (m_HeapType == HeapType.Upload)
{
m_CurrentState = ResourceStates.GenericRead;
}
else if (m_HeapType == HeapType.Readback)
{
m_CurrentState = ResourceStates.CopyDestination;
}
else
{
m_CurrentState = initialState;
}
if (desc.Dimension == ResourceDimension.Buffer)
{
m_GPUVirtualAddress.Ptr = resource.GPUVirtualAddress;
}
}
// null resource put on the UPLOAD heap to prevent attemps to transition the resource
else
{
m_HeapType = HeapType.Upload;
}
// defaultly set it as false
m_bCompressed = false;
if (initialData != null && numInitialData > 0)
{
//@TODO - I need to change this by H1DX12DeviceContext
//@TODO - I need to move this chunck code to H1DX12DeviceContext as 'UploadResource'
Device device = H1Global <H1ManagedRenderer> .Instance.Device;
// create instance of InitialData
m_InitialData.Size = GetSize(0, numInitialData);
// create new instance of SubResourceData
m_InitialData.SubResourceData = new List <H1SubresourceData>();
for (UInt32 i = 0; i < numInitialData; ++i)
{
H1SubresourceData newInitialData = initialData[i];
UInt64 curSize = GetSize(i, 1);
UInt64 cpySize = curSize;
if (desc.Dimension != ResourceDimension.Texture3D && newInitialData.SlicePitch != 0)
{
cpySize = newInitialData.SlicePitch;
newInitialData.SlicePitch = 0;
}
else if (desc.Dimension == ResourceDimension.Texture3D && newInitialData.SlicePitch != 0)
{
cpySize = Convert.ToUInt64((Convert.ToInt32(desc.DepthOrArraySize) >> Convert.ToInt32(i))) * newInitialData.SlicePitch;
}
newInitialData.pData = SharpDX.Utilities.AllocateMemory(Convert.ToInt32(curSize));
SharpDX.Utilities.CopyMemory(newInitialData.pData, initialData[i].pData, Convert.ToInt32(cpySize));
m_InitialData.SubResourceData.Add(newInitialData);
}
}
}
static void CreatePlatformDependent(Vector4 clearValue, H1Texture2D.Description desc, H1SubresourceData initialData, ref H1GpuTexture2D result)
{
// get device for directX 12
Device deviceDX12 = H1Global <H1ManagedRenderer> .Instance.Device;
H1GpuResourceDesc desc12 = H1RHIDefinitionHelper.Texture2DDescToGpuResourceDesc(desc);
H1HeapType heapType = H1RHIDefinitionHelper.GetHeapTypeFromTexture2DDesc(desc);
H1ResourceStates resourceStates = H1RHIDefinitionHelper.GetResourceStatesFromTexture2DDesc(desc);
// generate resource
//if (result != null)
// result.Resource.CreateResource(heapType, desc12, resourceStates);
// generate RHI resource description (need resource description for generating UAV or SRV or etc.)
result.CreateResourceDescription(desc12);
}
