normalize common filenames in VideoBackends/D3D12

Source/Core/VideoBackends/D3D12/D3D12PerfQuery.h

@@ -0,0 +1,60 @@
+// Copyright 2019 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include "VideoBackends/D3D12/DX12Context.h"
+#include "VideoCommon/PerfQueryBase.h"
+
+namespace DX12
+{
+class PerfQuery final : public PerfQueryBase
+{
+public:
+  PerfQuery();
+  ~PerfQuery();
+
+  static PerfQuery* GetInstance() { return static_cast<PerfQuery*>(g_perf_query.get()); }
+
+  bool Initialize();
+  void ResolveQueries();
+
+  void EnableQuery(PerfQueryGroup type) override;
+  void DisableQuery(PerfQueryGroup type) override;
+  void ResetQuery() override;
+  u32 GetQueryResult(PerfQueryType type) override;
+  void FlushResults() override;
+  bool IsFlushed() const override;
+
+private:
+  struct ActiveQuery
+  {
+    u64 fence_value;
+    PerfQueryType query_type;
+    bool has_value;
+    bool resolved;
+  };
+
+  void ResolveQueries(u32 query_count);
+  void ReadbackQueries(bool blocking);
+  void AccumulateQueriesFromBuffer(u32 query_count);
+
+  void PartialFlush(bool resolve, bool blocking);
+
+  // when testing in SMS: 64 was too small, 128 was ok
+  // TODO: This should be size_t, but the base class uses u32s
+  using PerfQueryDataType = u64;
+  static const u32 PERF_QUERY_BUFFER_SIZE = 512;
+  std::array<ActiveQuery, PERF_QUERY_BUFFER_SIZE> m_query_buffer = {};
+  u32 m_unresolved_queries = 0;
+  u32 m_query_resolve_pos = 0;
+  u32 m_query_readback_pos = 0;
+  u32 m_query_next_pos = 0;
+
+  ComPtr<ID3D12QueryHeap> m_query_heap;
+  ComPtr<ID3D12Resource> m_query_readback_buffer;
+};
+
+}  // namespace DX12