/*
 * Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
 *
 * SPDX-License-Identifier: MIT
 */

#pragma once

#include "cl_common.hpp"
#include "platform/context.hpp"
#include "platform/memory.hpp"

#include <utility>

/* cl_amd_d3d9_sharing error codes */
#define CL_INVALID_D3D9_RESOURCE_KHR -1022
#define D3DFMT_NV_12 static_cast<D3DFORMAT>(MAKEFOURCC('N', 'V', '1', '2'))
#define D3DFMT_P010 static_cast<D3DFORMAT>(MAKEFOURCC('P', '0', '1', '0'))
#define D3DFMT_YV_12 static_cast<D3DFORMAT>(MAKEFOURCC('Y', 'V', '1', '2'))
#define D3DFMT_YUY2 static_cast<D3DFORMAT>(MAKEFOURCC('Y', 'U', 'Y', '2'))

namespace amd {
typedef struct {
  union {
    UINT ByteWidth;
    UINT Width;
  };
  UINT Height;
  UINT Depth;
} D3D9ObjSize_t;

typedef struct {
  D3D9ObjSize_t objSize_;
  D3DFORMAT d3dFormat_;
  D3DRESOURCETYPE resType_;
  UINT usage_;
  D3DPOOL d3dPool_;
  D3DMULTISAMPLE_TYPE msType_;
  UINT msQuality_;
  UINT mipLevels_;
  UINT fvf_;
  RECT surfRect_;
} D3D9ObjDesc_t;

typedef struct d3d9ResInfo {
  cl_dx9_surface_info_khr surfInfo;
  cl_uint surfPlane;
} TD3D9RESINFO;


// typedef std::pair<cl_dx9_surface_info_khr, D3D9Object*> TD3D9OBJINFO;

//! Class D3D9Object keeps all the info about the D3D9 object
//! from which the CL object is created
class D3D9Object : public InteropObject {
 private:
  IDirect3DSurface9* pD3D9Aux_;
  bool releaseResources_;
  static std::vector<std::pair<TD3D9RESINFO, TD3D9RESINFO>> resources_;

  //! Global lock
  static Monitor resLock_;
  cl_uint surfPlane_;
  cl_dx9_surface_info_khr surfInfo_;

 protected:
  IDirect3DSurface9* pD3D9Res_;
  IDirect3DSurface9* pD3D9ResOrig_;
  IDirect3DQuery9* pQuery_;
  D3D9ObjDesc_t objDesc_;
  D3D9ObjDesc_t objDescOrig_;
  HANDLE handleShared_;
  cl_dx9_media_adapter_type_khr adapterType_;

 public:
  //! D3D9Object constructor initializes memeber variables
  D3D9Object() : releaseResources_(false), pQuery_(nullptr) {
    // @todo Incorrect initialization!!!
    memset(this, 0, sizeof(D3D9Object));
  }
  // copy constructor
  D3D9Object(D3D9Object& d3d9obj) : pQuery_(nullptr) {
    *this = d3d9obj;
    this->releaseResources_ = true;
  }

  // virtual destructor
  virtual ~D3D9Object() {
    ScopedLock sl(resLock_);
    if (releaseResources_) {
      if (pD3D9ResOrig_) pD3D9ResOrig_->Release();
      if (pD3D9Res_) pD3D9Res_->Release();
      if (pD3D9Aux_) pD3D9Aux_->Release();
      if (pQuery_) pQuery_->Release();
      // if the resouce is being used
      if (resources_.size()) {
        for (auto it = resources_.cbegin(); it != resources_.cend(); it++) {
          if (surfInfo_.resource && ((*it).first.surfInfo.resource == surfInfo_.resource) &&
              ((*it).first.surfPlane == surfPlane_)) {
            resources_.erase(it);
            break;
          }
        }
      }
    }
  }
  static int initD3D9Object(const Context& amdContext, cl_dx9_media_adapter_type_khr adapter_type,
                            cl_dx9_surface_info_khr* cl_surf_info, cl_uint plane, D3D9Object& obj);
  cl_uint getMiscFlag(void);

  D3D9Object* asD3D9Object() { return this; }
  IDirect3DSurface9* getD3D9Resource() const { return pD3D9Res_; }
  HANDLE getD3D9SharedHandle() const { return handleShared_; }
  IDirect3DSurface9* getD3D9ResOrig() const { return pD3D9ResOrig_; }
  IDirect3DQuery9* getQuery() const { return pQuery_; }
  Monitor& getResLock() { return resLock_; }
  UINT getWidth() const { return objDesc_.objSize_.Width; }
  UINT getHeight() const { return objDesc_.objSize_.Height; }
  cl_uint getPlane() const { return surfPlane_; }
  cl_dx9_media_adapter_type_khr getAdapterType() const { return adapterType_; };
  const cl_dx9_surface_info_khr& getSurfInfo() const { return surfInfo_; };
  size_t getElementBytes(D3DFORMAT d3d9Format, cl_uint plane);
  size_t getElementBytes() { return getElementBytes(objDesc_.d3dFormat_, surfPlane_); }
  D3D9ObjDesc_t* getObjDesc() { return &objDesc_; }
  cl_image_format getCLFormatFromD3D9();
  cl_image_format getCLFormatFromD3D9(D3DFORMAT d3d9Fmt, cl_uint plane);
  // On acquire copy data from original resource to shared resource
  virtual bool copyOrigToShared();
  // On release copy data from shared copy to the original resource
  virtual bool copySharedToOrig();
};

class Image2DD3D9 : public D3D9Object, public Image {
 protected:
  //! Initializes the device memory array which is nested
  // after'Image2DD3D9' object in memory layout.
  virtual void initDeviceMemory();

 public:
  //! Image2DD3D9 constructor just calls constructors of base classes
  //! to pass down the parameters
  Image2DD3D9(Context& amdContext, cl_mem_flags clFlags,
              D3D9Object& d3d9obj)
      :  // Call base classes constructors
        D3D9Object(d3d9obj),
        Image(amdContext, CL_MEM_OBJECT_IMAGE2D, clFlags, d3d9obj.getCLFormatFromD3D9(),
              d3d9obj.getWidth(), d3d9obj.getHeight(), 1,
              d3d9obj.getWidth() * d3d9obj.getElementBytes(),  // rowPitch),
              0) {
    setInteropObj(this);
  }
  virtual ~Image2DD3D9() {}
};

}  // namespace amd