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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include <algorithm>
#include <cstddef>
#include <string>
#include <vector>
#include "Common/CommonTypes.h"
#include "Common/MathUtil.h"
#include "Common/StringUtil.h"
#include "DiscIO/Blob.h"
#include "DiscIO/Volume.h"
#include "DiscIO/VolumeWad.h"
#define ALIGN_40(x) ROUND_UP(Common::swap32(x), 0x40)
namespace DiscIO
{
CVolumeWAD::CVolumeWAD(IBlobReader* _pReader)
: m_pReader(_pReader), m_offset(0), m_tmd_offset(0), m_opening_bnr_offset(0),
m_hdr_size(0), m_cert_size(0), m_tick_size(0), m_tmd_size(0), m_data_size(0)
{
// Source: http://wiibrew.org/wiki/WAD_files
Read(0x00, 4, (u8*)&m_hdr_size);
Read(0x08, 4, (u8*)&m_cert_size);
Read(0x10, 4, (u8*)&m_tick_size);
Read(0x14, 4, (u8*)&m_tmd_size);
Read(0x18, 4, (u8*)&m_data_size);
m_offset = ALIGN_40(m_hdr_size) + ALIGN_40(m_cert_size);
m_tmd_offset = ALIGN_40(m_hdr_size) + ALIGN_40(m_cert_size) + ALIGN_40(m_tick_size);
m_opening_bnr_offset = m_tmd_offset + ALIGN_40(m_tmd_size) + ALIGN_40(m_data_size);
}
CVolumeWAD::~CVolumeWAD()
{
}
bool CVolumeWAD::Read(u64 _Offset, u64 _Length, u8* _pBuffer, bool decrypt) const
{
if (decrypt)
PanicAlertT("Tried to decrypt data from a non-Wii volume");
if (m_pReader == nullptr)
return false;
return m_pReader->Read(_Offset, _Length, _pBuffer);
}
IVolume::ECountry CVolumeWAD::GetCountry() const
{
if (!m_pReader)
return COUNTRY_UNKNOWN;
// read the last digit of the titleID in the ticket
u8 country_code;
Read(m_tmd_offset + 0x0193, 1, &country_code);
if (country_code == 2) // SYSMENU
{
u16 title_version = 0;
Read(m_tmd_offset + 0x01dc, 2, (u8*)&title_version);
country_code = GetSysMenuRegion(Common::swap16(title_version));
}
return CountrySwitch(country_code);
}
std::string CVolumeWAD::GetUniqueID() const
{
std::string temp = GetMakerID();
char GameCode[8];
if (!Read(m_offset + 0x01E0, 4, (u8*)GameCode))
return "0";
GameCode[4] = temp.at(0);
GameCode[5] = temp.at(1);
GameCode[6] = 0;
return GameCode;
}
std::string CVolumeWAD::GetMakerID() const
{
char temp[3] = {1};
// Some weird channels use 0x0000 in place of the MakerID, so we need a check there
if (!Read(0x198 + m_tmd_offset, 2, (u8*)temp) || temp[0] == 0 || temp[1] == 0)
return "00";
temp[2] = 0;
return temp;
}
bool CVolumeWAD::GetTitleID(u8* _pBuffer) const
{
if (!Read(m_offset + 0x01DC, 8, _pBuffer))
return false;
return true;
}
int CVolumeWAD::GetRevision() const
{
u16 revision;
if (!m_pReader->Read(m_tmd_offset + 0x1dc, 2, (u8*)&revision))
return 0;
return Common::swap16(revision);
}
bool CVolumeWAD::IsWadFile() const
{
return true;
}
std::vector<std::string> CVolumeWAD::GetNames() const
{
std::vector<std::string> names;
u32 footer_size;
if (!Read(0x1C, 4, (u8*)&footer_size))
{
return names;
}
footer_size = Common::swap32(footer_size);
//Japanese, English, German, French, Spanish, Italian, Dutch, unknown, unknown, Korean
for (int i = 0; i != 10; ++i)
{
static const u32 string_length = 42;
static const u32 bytes_length = string_length * sizeof(u16);
u16 temp[string_length];
if (footer_size < 0xF1 || !Read(0x9C + (i * bytes_length) + m_opening_bnr_offset, bytes_length, (u8*)&temp))
{
names.push_back("");
}
else
{
std::wstring out_temp;
out_temp.resize(string_length);
std::transform(temp, temp + out_temp.size(), out_temp.begin(), (u16(&)(u16))Common::swap16);
out_temp.erase(std::find(out_temp.begin(), out_temp.end(), 0x00), out_temp.end());
names.push_back(UTF16ToUTF8(out_temp));
}
}
return names;
}
u64 CVolumeWAD::GetSize() const
{
if (m_pReader)
return m_pReader->GetDataSize();
else
return 0;
}
u64 CVolumeWAD::GetRawSize() const
{
if (m_pReader)
return m_pReader->GetRawSize();
else
return 0;
}
} // namespace
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