mirror of
https://github.com/dolphin-emu/dolphin.git
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ace060748b
Should be faster than relying on the OS to cache the magic words. Also gets rid of the odd recursive call in VolumeDirectory.
165 lines
3.6 KiB
C++
165 lines
3.6 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <cstddef>
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#include <string>
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#include <vector>
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#include "Common/CommonTypes.h"
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#include "Common/MathUtil.h"
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#include "Common/StringUtil.h"
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#include "DiscIO/Blob.h"
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#include "DiscIO/Volume.h"
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#include "DiscIO/VolumeWad.h"
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#define ALIGN_40(x) ROUND_UP(Common::swap32(x), 0x40)
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namespace DiscIO
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{
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CVolumeWAD::CVolumeWAD(IBlobReader* _pReader)
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: m_pReader(_pReader), m_opening_bnr_offset(0), m_hdr_size(0)
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, m_cert_size(0), m_tick_size(0), m_tmd_size(0), m_data_size(0)
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{
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Read(0x00, 4, (u8*)&m_hdr_size);
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Read(0x08, 4, (u8*)&m_cert_size);
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Read(0x10, 4, (u8*)&m_tick_size);
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Read(0x14, 4, (u8*)&m_tmd_size);
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Read(0x18, 4, (u8*)&m_data_size);
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u32 TmdOffset = ALIGN_40(m_hdr_size) + ALIGN_40(m_cert_size) + ALIGN_40(m_tick_size);
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m_opening_bnr_offset = TmdOffset + ALIGN_40(m_tmd_size) + ALIGN_40(m_data_size);
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// read the last digit of the titleID in the ticket
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Read(TmdOffset + 0x0193, 1, &m_Country);
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if (m_Country == 2) // SYSMENU
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{
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u16 titlever = 0;
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Read(TmdOffset + 0x01dc, 2, (u8*)&titlever);
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m_Country = GetSysMenuRegion(Common::swap16(titlever));
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}
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}
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CVolumeWAD::~CVolumeWAD()
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{
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}
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bool CVolumeWAD::Read(u64 _Offset, u64 _Length, u8* _pBuffer, bool decrypt) const
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{
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if (decrypt)
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PanicAlertT("Tried to decrypt data from a non-Wii volume");
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if (m_pReader == nullptr)
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return false;
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return m_pReader->Read(_Offset, _Length, _pBuffer);
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}
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IVolume::ECountry CVolumeWAD::GetCountry() const
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{
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if (!m_pReader)
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return COUNTRY_UNKNOWN;
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return CountrySwitch(m_Country);
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}
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std::string CVolumeWAD::GetUniqueID() const
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{
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std::string temp = GetMakerID();
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u32 Offset = ALIGN_40(m_hdr_size) + ALIGN_40(m_cert_size);
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char GameCode[8];
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if (!Read(Offset + 0x01E0, 4, (u8*)GameCode))
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return "0";
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GameCode[4] = temp.at(0);
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GameCode[5] = temp.at(1);
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GameCode[6] = 0;
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return GameCode;
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}
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std::string CVolumeWAD::GetMakerID() const
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{
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u32 Offset = ALIGN_40(m_hdr_size) + ALIGN_40(m_cert_size) + ALIGN_40(m_tick_size);
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char temp[3] = {1};
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// Some weird channels use 0x0000 in place of the MakerID, so we need a check there
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if (!Read(0x198 + Offset, 2, (u8*)temp) || temp[0] == 0 || temp[1] == 0)
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return "00";
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temp[2] = 0;
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return temp;
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}
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bool CVolumeWAD::GetTitleID(u8* _pBuffer) const
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{
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u32 Offset = ALIGN_40(m_hdr_size) + ALIGN_40(m_cert_size);
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if (!Read(Offset + 0x01DC, 8, _pBuffer))
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return false;
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return true;
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}
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bool CVolumeWAD::IsWadFile() const
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{
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return true;
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}
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std::vector<std::string> CVolumeWAD::GetNames() const
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{
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std::vector<std::string> names;
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u32 footer_size;
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if (!Read(0x1C, 4, (u8*)&footer_size))
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{
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return names;
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}
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footer_size = Common::swap32(footer_size);
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//Japanese, English, German, French, Spanish, Italian, Dutch, unknown, unknown, Korean
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for (int i = 0; i != 10; ++i)
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{
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static const u32 string_length = 42;
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static const u32 bytes_length = string_length * sizeof(u16);
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u16 temp[string_length];
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if (footer_size < 0xF1 || !Read(0x9C + (i * bytes_length) + m_opening_bnr_offset, bytes_length, (u8*)&temp))
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{
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names.push_back("");
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}
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else
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{
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std::wstring out_temp;
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out_temp.resize(string_length);
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std::transform(temp, temp + out_temp.size(), out_temp.begin(), (u16(&)(u16))Common::swap16);
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out_temp.erase(std::find(out_temp.begin(), out_temp.end(), 0x00), out_temp.end());
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names.push_back(UTF16ToUTF8(out_temp));
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}
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}
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return names;
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}
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u64 CVolumeWAD::GetSize() const
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{
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if (m_pReader)
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return m_pReader->GetDataSize();
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else
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return 0;
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}
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u64 CVolumeWAD::GetRawSize() const
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{
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if (m_pReader)
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return m_pReader->GetRawSize();
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else
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return 0;
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}
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} // namespace
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