OpenDX/src/d3d11/d3d11_query.h

#pragma once

#include "../dxvk/dxvk_gpu_event.h"
#include "../dxvk/dxvk_gpu_query.h"

#include "../d3d10/d3d10_query.h"

#include "d3d11_device_child.h"

namespace dxvk {
  
  enum D3D11_VK_QUERY_STATE : uint32_t {
    D3D11_VK_QUERY_INITIAL,
    D3D11_VK_QUERY_BEGUN,
    D3D11_VK_QUERY_ENDED,
  };
  
  class D3D11Query : public D3D11DeviceChild<ID3D11Predicate> {
    
  public:
    
    D3D11Query(
            D3D11Device*      device,
      const D3D11_QUERY_DESC& desc);
    
    ~D3D11Query();
    
    HRESULT STDMETHODCALLTYPE QueryInterface(
            REFIID  riid,
            void**  ppvObject) final;
    
    void STDMETHODCALLTYPE GetDevice(
            ID3D11Device **ppDevice) final;
    
    UINT STDMETHODCALLTYPE GetDataSize();
    
    void STDMETHODCALLTYPE GetDesc(
            D3D11_QUERY_DESC *pDesc) final;
    
    void Begin(DxvkContext* ctx);
    
    void End(DxvkContext* ctx);
    
    HRESULT STDMETHODCALLTYPE GetData(
            void*                             pData,
            UINT                              GetDataFlags);
    
    DxvkBufferSlice GetPredicate(DxvkContext* ctx);

    bool IsEvent() const {
      return m_desc.Query == D3D11_QUERY_EVENT;
    }

    bool IsStalling() const {
      return m_stallFlag;
    }

    void NotifyEnd() {
      m_stallMask <<= 1;
    }

    void NotifyStall() {
      m_stallMask |= 1;
      m_stallFlag |= bit::popcnt(m_stallMask) >= 16;
    }
    
    D3D10Query* GetD3D10Iface() {
      return &m_d3d10;
    }
    
  private:
    
    D3D11Device* const m_device;
    D3D11_QUERY_DESC   m_desc;

    D3D11_VK_QUERY_STATE m_state;
    
    Rc<DxvkGpuQuery>  m_query = nullptr;
    Rc<DxvkGpuEvent>  m_event = nullptr;

    sync::Spinlock  m_predicateLock;
    DxvkBufferSlice m_predicate;

    D3D10Query m_d3d10;

    uint32_t m_stallMask = 0;
    bool     m_stallFlag = false;

    UINT64 GetTimestampQueryFrequency() const;
    
  };
  
}