//
// Copyright (c) 2008 Advanced Micro Devices, Inc. All rights reserved.
//

#ifndef TOP_HPP_
#define TOP_HPP_

#if defined(ATI_ARCH_ARM)
#define __EXPORTED_HEADERS__ 1
#endif /*ATI_ARCH_ARM*/

#ifdef _WIN32
// Disable unneeded features of <windows.h> for efficiency.
#define NODRAWTEXT 1
#define NOMINMAX 1
#define WIN32_LEAN_AND_MEAN 1
#endif /*_WIN32*/

#include "utils/macros.hpp"
#include "CL/opencl.h"

#if defined(CL_VERSION_2_0)
/* Deprecated in OpenCL 2.0 */
#define CL_DEVICE_QUEUE_PROPERTIES 0x102A
#define CL_DEVICE_HOST_UNIFIED_MEMORY 0x1035
#endif

#if !defined(ATI_ARCH_ARM)
#include <xmmintrin.h>
#endif /*!ATI_ARCH_ARM*/

#include <cstdint>
#include <cstddef>
#include <new>

typedef unsigned char* address;
typedef const unsigned char* const_address;
typedef void* pointer;
typedef const void* const_pointer;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef const char* cstring;

#if defined(_WIN32)
#if defined(_WIN64)
typedef __int64 ssize_t;
#else   // !_WIN64
typedef __int32 ssize_t;
#endif  // !_WIN64
#endif  /*_WIN32*/

#ifdef _WIN32
#define SIZE_T_FMT "%Iu"
#define PTR_FMT "0x%p"
#if _MSC_VER < 1900
#define snprintf sprintf_s
#endif
#else /*!_WIN32*/
#define SIZE_T_FMT "%zu"
#define PTR_FMT "%p"
#endif /*!_WIN32*/

typedef uint32_t cl_mem_fence_flags;

//! \cond ignore
#define _BAD_INT32 0xBAADBAAD
#define _BAD_INT64 0XBAADBAADBAADBAADLL
#define _BAD_INTPTR LP64_SWITCH(_BAD_INT32, _BAD_INT64)

const pointer badPointer = (pointer)(intptr_t)_BAD_INTPTR;
const address badAddress = (address)(intptr_t)_BAD_INTPTR;
//! \endcond

const size_t Ki = 1024;
const size_t Mi = Ki * Ki;
const size_t Gi = Ki * Ki * Ki;

const size_t K = 1000;
const size_t M = K * K;
const size_t G = K * K * K;

#include "utils/debug.hpp"

//! \addtogroup Utils

//! Namespace for AMD's OpenCL platform
namespace amd { /*@{*/

//! \brief The default Null object type (!= void*);
struct Null {};

//! \brief Return a const Null object (null)
inline const Null null() { return Null(); }

/*! \brief Equivalent to a namespace (All member functions are static).
 */
class AllStatic {
  WINDOWS_SWITCH(public, private) : AllStatic() { ShouldNotCallThis(); }
  AllStatic(const AllStatic&) { ShouldNotCallThis(); }
  ~AllStatic() { ShouldNotCallThis(); }
};

/*! \brief For embedded objects.
 */
class EmbeddedObject {
  WINDOWS_SWITCH(public, private) : void * operator new(size_t) {
    ShouldNotCallThis();
    return badPointer;
  }
  void operator delete(void*) { ShouldNotCallThis(); }
};

/*! \brief For stack allocated objects.
 */
class StackObject {
  WINDOWS_SWITCH(public, private) : void * operator new(size_t) {
    ShouldNotCallThis();
    return badPointer;
  }
  void operator delete(void*) { ShouldNotCallThis(); }
};

/*! \brief for objects allocated in a dedicate memory pool.
  the standard 'new' should not be called,
  only the in place version 'new (allocation_pointer) <class>()'
  , delete should only invoke the destructors and not release memory
 */
class MemoryPoolObject {
 public:
  void* operator new(size_t) {
    ShouldNotCallThis();
    return badPointer;
  }
  void* operator new(size_t size, void* address) { return address; }
  void operator delete(void*) {}
  void operator delete(void*, void* address) {}
};

/*! \brief For objects allocated on the C-heap.
 */
class HeapObject {
 public:
  void* operator new(size_t size);
  void operator delete(void* obj);
  void* operator new(size_t size, size_t extSize) {
    return HeapObject::operator new(size + extSize);
  };
  void operator delete(void* obj, size_t extSize) { HeapObject::operator delete(obj); }
};

/*! \brief For all reference counted objects.
 */
class ReferenceCountedObject {
  volatile uint referenceCount_;

 protected:
  virtual ~ReferenceCountedObject() {}
  virtual bool terminate() { return true; }

 public:
  ReferenceCountedObject() : referenceCount_(1) {}

  void* operator new(size_t size) { return ::operator new(size); }
  void operator delete(void* p) { return ::operator delete(p); }
  void* operator new(size_t size, size_t extSize) {
    return ReferenceCountedObject::operator new(size + extSize);
  };
  void operator delete(void* obj, size_t extSize) { ReferenceCountedObject::operator delete(obj); }

  uint referenceCount() const { return referenceCount_; }

  uint retain();
  uint release();
};

/*@}*/} // namespace amd

#undef min  // using std::min
#undef max  // using std::max

#endif /*TOP_HPP_*/