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// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <cstddef>
#include <cstring>
#include <map>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "Common/CommonTypes.h"
#include "Common/MathUtil.h"
#include "Common/MsgHandler.h"
#include "Common/StringUtil.h"
#include "Common/Logging/Log.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(std::unique_ptr<IBlobReader> reader)
: m_pReader(std::move(reader)), 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
{
char GameCode[6];
if (!Read(m_offset + 0x01E0, 4, (u8*)GameCode))
return "0";
std::string temp = GetMakerID();
GameCode[4] = temp.at(0);
GameCode[5] = temp.at(1);
return DecodeString(GameCode);
}
std::string CVolumeWAD::GetMakerID() const
{
char temp[2] = {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";
return DecodeString(temp);
}
bool CVolumeWAD::GetTitleID(u64* buffer) const
{
if (!Read(m_offset + 0x01DC, sizeof(u64), reinterpret_cast<u8*>(buffer)))
return false;
*buffer = Common::swap64(*buffer);
return true;
}
u16 CVolumeWAD::GetRevision() const
{
u16 revision;
if (!m_pReader->Read(m_tmd_offset + 0x1dc, 2, (u8*)&revision))
return 0;
return Common::swap16(revision);
}
IVolume::EPlatform CVolumeWAD::GetVolumeType() const
{
return WII_WAD;
}
std::map<IVolume::ELanguage, std::string> CVolumeWAD::GetNames(bool prefer_long) const
{
std::vector<u8> name_data(NAMES_TOTAL_BYTES);
if (!Read(m_opening_bnr_offset + 0x9C, NAMES_TOTAL_BYTES, name_data.data()))
return std::map<IVolume::ELanguage, std::string>();
return ReadWiiNames(name_data);
}
std::vector<u32> CVolumeWAD::GetBanner(int* width, int* height) const
{
*width = 0;
*height = 0;
u64 title_id;
if (!GetTitleID(&title_id))
return std::vector<u32>();
return GetWiiBanner(width, height, title_id);
}
BlobType CVolumeWAD::GetBlobType() const
{
return m_pReader ? m_pReader->GetBlobType() : BlobType::PLAIN;
}
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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