[D3D12] Experimental incomplete custom sample positions, disabled by default

src/xenia/ui/d3d12/command_list.cc

@@ -31,6 +31,9 @@ CommandList::CommandList(ID3D12Device* device, ID3D12CommandQueue* queue,
     : device_(device), queue_(queue), type_(type) {}
 
 CommandList::~CommandList() {
+  if (command_list_1_ != nullptr) {
+    command_list_1_->Release();
+  }
   if (command_list_ != nullptr) {
     command_list_->Release();
   }
@@ -52,6 +55,8 @@ bool CommandList::Initialize() {
     command_allocator_ = nullptr;
     return false;
   }
+  // Optional - added in Creators Update (SDK 10.0.15063.0).
+  command_list_->QueryInterface(IID_PPV_ARGS(&command_list_1_));
   // A command list is initially open, need to close it before resetting.
   command_list_->Close();
   return true;

src/xenia/ui/d3d12/command_list.h

@@ -27,6 +27,9 @@ class CommandList {
                                              D3D12_COMMAND_LIST_TYPE type);
 
   ID3D12GraphicsCommandList* GetCommandList() const { return command_list_; }
+  ID3D12GraphicsCommandList1* GetCommandList1() const {
+    return command_list_1_;
+  }
 
   ID3D12GraphicsCommandList* BeginRecording();
   void AbortRecording();
@@ -43,6 +46,7 @@ class CommandList {
 
   ID3D12CommandAllocator* command_allocator_ = nullptr;
   ID3D12GraphicsCommandList* command_list_ = nullptr;
+  ID3D12GraphicsCommandList1* command_list_1_ = nullptr;
 };
 
 }  // namespace d3d12

src/xenia/ui/d3d12/d3d12_provider.cc

@@ -146,6 +146,18 @@ bool D3D12Provider::Initialize() {
   descriptor_size_dsv_ =
       device->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_DSV);
 
+  // Check if programmable sample positions are supported (added in Creators
+  // Update).
+  programmable_sample_positions_tier_ = 0;
+  D3D12_FEATURE_DATA_D3D12_OPTIONS2 options2;
+  if (SUCCEEDED(device->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS2,
+                                            &options2, sizeof(options2)))) {
+    programmable_sample_positions_tier_ =
+        uint32_t(options2.ProgrammableSamplePositionsTier);
+  }
+  XELOGD3D("Direct3D 12 device supports programmable sample positions tier %u",
+           programmable_sample_positions_tier_);
+
   return true;
 }
 

src/xenia/ui/d3d12/d3d12_provider.h

@@ -38,6 +38,10 @@ class D3D12Provider : public GraphicsProvider {
   uint32_t GetDescriptorSizeRTV() const { return descriptor_size_rtv_; }
   uint32_t GetDescriptorSizeDSV() const { return descriptor_size_dsv_; }
 
+  uint32_t GetProgrammableSamplePositionsTier() const {
+    return programmable_sample_positions_tier_;
+  }
+
  private:
   explicit D3D12Provider(Window* main_window);
 
@@ -52,6 +56,8 @@ class D3D12Provider : public GraphicsProvider {
   uint32_t descriptor_size_sampler_;
   uint32_t descriptor_size_rtv_;
   uint32_t descriptor_size_dsv_;
+
+  uint32_t programmable_sample_positions_tier_;
 };
 
 }  // namespace d3d12