dxvk/src/d3d11/d3d11_context.h

#pragma once

#include "../dxvk/dxvk_adapter.h"
#include "../dxvk/dxvk_cs.h"
#include "../dxvk/dxvk_device.h"
#include "../dxvk/dxvk_staging.h"

#include "../d3d10/d3d10_multithread.h"

#include "d3d11_annotation.h"
#include "d3d11_cmd.h"
#include "d3d11_context_ext.h"
#include "d3d11_context_state.h"
#include "d3d11_device_child.h"
#include "d3d11_texture.h"

namespace dxvk {
  
  class D3D11Device;
  
  class D3D11DeviceContext : public D3D11DeviceChild<ID3D11DeviceContext4> {
    template<typename T>
    friend class D3D11DeviceContextExt;
    // Needed in order to call EmitCs for pushing markers
    template<typename T>
    friend class D3D11UserDefinedAnnotation;

    constexpr static VkDeviceSize StagingBufferSize = 4ull << 20;
  public:
    
    D3D11DeviceContext(
            D3D11Device*            pParent,
      const Rc<DxvkDevice>&         Device,
            DxvkCsChunkFlags        CsFlags);
    ~D3D11DeviceContext();
    
    D3D10DeviceLock LockContext() {
      return m_multithread.AcquireLock();
    }

  protected:
    
    D3D10Multithread            m_multithread;
    
    Rc<DxvkDevice>              m_device;
    Rc<DxvkDataBuffer>          m_updateBuffer;

    DxvkStagingBuffer           m_staging;

    DxvkCsChunkFlags            m_csFlags;
    DxvkCsChunkRef              m_csChunk;
    
    D3D11ContextState           m_state;
    D3D11CmdData*               m_cmdData;
    
    VkClearValue ConvertColorValue(
      const FLOAT                             Color[4],
      const DxvkFormatInfo*                   pFormatInfo);
    
    DxvkDataSlice AllocUpdateBufferSlice(size_t Size);
    
    DxvkBufferSlice AllocStagingBuffer(
            VkDeviceSize                      Size);

    void ResetStagingBuffer();

    DxvkCsChunkRef AllocCsChunk();
    
    static void InitDefaultPrimitiveTopology(
            DxvkInputAssemblyState*           pIaState);

    static void InitDefaultRasterizerState(
            DxvkRasterizerState*              pRsState);

    static void InitDefaultDepthStencilState(
            DxvkDepthStencilState*            pDsState);

    static void InitDefaultBlendState(
            DxvkBlendMode*                    pCbState,
            DxvkLogicOpState*                 pLoState,
            DxvkMultisampleState*             pMsState,
            UINT                              SampleMask);

    template<typename T>
    const D3D11CommonShader* GetCommonShader(T* pShader) const {
      return pShader != nullptr ? pShader->GetCommonShader() : nullptr;
    }

    static uint32_t GetIndirectCommandStride(const D3D11CmdDrawIndirectData* cmdData, uint32_t offset, uint32_t minStride) {
      if (likely(cmdData->stride))
        return cmdData->offset + cmdData->count * cmdData->stride == offset ? cmdData->stride : 0;

      uint32_t stride = offset - cmdData->offset;
      return stride >= minStride && stride <= 32 ? stride : 0;
    }

    static bool ValidateDrawBufferSize(ID3D11Buffer* pBuffer, UINT Offset, UINT Size) {
      UINT bufferSize = 0;

      if (likely(pBuffer != nullptr))
        bufferSize = static_cast<D3D11Buffer*>(pBuffer)->Desc()->ByteWidth;

      return bufferSize >= Offset + Size;
    }
    
    template<typename Cmd>
    void EmitCs(Cmd&& command) {
      m_cmdData = nullptr;

      if (unlikely(!m_csChunk->push(command))) {
        EmitCsChunk(std::move(m_csChunk));
        
        m_csChunk = AllocCsChunk();
        m_csChunk->push(command);
      }
    }

    template<typename M, typename Cmd, typename... Args>
    M* EmitCsCmd(Cmd&& command, Args&&... args) {
      M* data = m_csChunk->pushCmd<M, Cmd, Args...>(
        command, std::forward<Args>(args)...);

      if (unlikely(!data)) {
        EmitCsChunk(std::move(m_csChunk));
        
        m_csChunk = AllocCsChunk();
        data = m_csChunk->pushCmd<M, Cmd, Args...>(
          command, std::forward<Args>(args)...);
      }

      m_cmdData = data;
      return data;
    }
    
    void FlushCsChunk() {
      if (likely(!m_csChunk->empty())) {
        EmitCsChunk(std::move(m_csChunk));
        m_csChunk = AllocCsChunk();
        m_cmdData = nullptr;
      }
    }
    
    void TrackResourceSequenceNumber(
            ID3D11Resource*             pResource);

    virtual void EmitCsChunk(DxvkCsChunkRef&& chunk) = 0;
    
    virtual void TrackTextureSequenceNumber(
            D3D11CommonTexture*         pResource,
            UINT                        Subresource) = 0;

    virtual void TrackBufferSequenceNumber(
            D3D11Buffer*                pResource) = 0;

  };
  
}