// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.

#include "Core/Debugger/Dump.h"

#include <cstdio>
#include <string>

#include "Common/CommonTypes.h"
#include "Common/File.h"

CDump::CDump(const std::string& filename) : m_pData(nullptr)
{
  File::IOFile pStream(filename, "rb");
  if (pStream)
  {
    m_size = (size_t)pStream.GetSize();

    m_pData = new u8[m_size];

    pStream.ReadArray(m_pData, m_size);
  }
}

CDump::~CDump()
{
  if (m_pData != nullptr)
  {
    delete[] m_pData;
    m_pData = nullptr;
  }
}

int CDump::GetNumberOfSteps()
{
  return (int)(m_size / STRUCTUR_SIZE);
}

u32 CDump::GetGPR(int _step, int _gpr)
{
  u32 offset = _step * STRUCTUR_SIZE;

  if (offset >= m_size)
    return UINT32_MAX;

  return Read32(offset + OFFSET_GPR + (_gpr * 4));
}

u32 CDump::GetPC(int _step)
{
  u32 offset = _step * STRUCTUR_SIZE;

  if (offset >= m_size)
    return UINT32_MAX;

  return Read32(offset + OFFSET_PC);
}

u32 CDump::Read32(u32 _pos)
{
  u32 result = (m_pData[_pos + 0] << 24) | (m_pData[_pos + 1] << 16) | (m_pData[_pos + 2] << 8) |
               (m_pData[_pos + 3] << 0);

  return result;
}