Merge pull request #7 from llvm-beanz/revert-4-dsets

Revert "Fix setting root descriptor table"

Author: llvm-beanz

lib/API/DX/Device.cpp

@@ -513,14 +513,16 @@ class DXDevice : public hlsltest::Device {
 
     uint32_t Inc = Device->GetDescriptorHandleIncrementSize(
         D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
-    CD3DX12_GPU_DESCRIPTOR_HANDLE Handle{
-        IS.DescHeap->GetGPUDescriptorHandleForHeapStart()};
 
-    for (uint32_t Idx = 0; Idx < P.Sets.size(); ++Idx) {
+    uint32_t Offset = 0;
+    for (uint32_t Idx = 0; Idx < P.Sets.size(); ++Idx, Offset += Inc) {
+      D3D12_GPU_DESCRIPTOR_HANDLE Handle =
+          IS.DescHeap->GetGPUDescriptorHandleForHeapStart();
+      Handle.ptr += Offset;
       IS.CmdList->SetComputeRootDescriptorTable(Idx, Handle);
-      Handle.Offset(P.Sets[Idx].Resources.size(), Inc);
+      // TODO: This probably computes the wrong offsets if I have multiple
+      // descriptor tables in use.
     }
-
     IS.CmdList->Dispatch(P.DispatchSize[0], P.DispatchSize[1],
                          P.DispatchSize[2]);