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Record md5 of game file to .dtm, and check it when playing back.

This commit is contained in:
rog 2012-11-23 22:23:58 -05:00
parent 1071ccbcd5
commit ca650d4435
2 changed files with 58 additions and 5 deletions
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60
Source/Core/Core/Src/Movie.cpp
View File

@ -36,6 +36,8 @@
#include "HW/EXI_Channel.h"
#include "HW/DVDInterface.h"
#include "../../Common/Src/NandPaths.h"
#include "thread.h"
#include "Crypto/md5.h"
// large enough for just over 24 hours of single-player recording
#define MAX_DTM_LENGTH (40 * 1024 * 1024)
@ -69,6 +71,7 @@ bool g_bDiscChange = false;
std::string g_discChange = "";
std::string author = "";
u64 g_titleID = 0;
unsigned char MD5[16];
bool g_bRecordingFromSaveState = false;
bool g_bPolled = false;
@ -167,6 +170,8 @@ void Init()
//delete tmpInput;
//tmpInput = NULL;
}
else
std::thread md5thread(CheckMD5);
}
void InputUpdate()
@ -392,10 +397,13 @@ bool BeginRecordingInput(int controllers)
// This is only done here if starting from save state because otherwise we won't have the titleid. Otherwise it's set in WII_IPC_HLE_Device_es.cpp.
// TODO: find a way to GetTitleDataPath() from Movie::Init()
if (File::Exists((Common::GetTitleDataPath(g_titleID) + "banner.bin").c_str()))
Movie::g_bClearSave = false;
else
Movie::g_bClearSave = true;
if (Core::g_CoreStartupParameter.bWii)
{
if (File::Exists((Common::GetTitleDataPath(g_titleID) + "banner.bin").c_str()))
Movie::g_bClearSave = false;
else
Movie::g_bClearSave = true;
}
}
g_playMode = MODE_RECORDING;
GetSettings();
@ -655,6 +663,9 @@ void ReadHeader()
{
author[i] = tmpHeader.author[i];
}
for (int i = 0; i < 16; i++)
MD5[i] = tmpHeader.md5[i];
}
bool PlayInput(const char *filename)
@ -1077,6 +1088,8 @@ void SaveRecording(const char *filename)
header.bClearSave = g_bClearSave;
strncpy((char *)header.discChange, g_discChange.c_str(),ARRAYSIZE(header.discChange));
strncpy((char *)header.author, author.c_str(),ARRAYSIZE(header.author));
for (int i = 0; i < 16;i++)
header.md5[i] = MD5[i];
// TODO
header.uniqueID = 0;
@ -1135,4 +1148,43 @@ void GetSettings()
g_bClearSave = !File::Exists(SConfig::GetInstance().m_strMemoryCardA);
bMemcard = SConfig::GetInstance().m_EXIDevice[0] == EXIDEVICE_MEMORYCARD;
}
void CheckMD5()
{
if (IsRecordingInput())
{
Core::DisplayMessage("Calculating md5 of game file...", 2000);
for (int i = 0; i < 16; i++)
MD5[i] = 0;
}
else
{
for (int i=0; i<16; i++)
{
if (tmpHeader.md5[i] != 0)
continue;
if (i == 15)
return;
}
Core::DisplayMessage("Checking md5 of game file against recorded game...", 2000);
}
unsigned char gameMD5[16];
char game[255];
memcpy(game, SConfig::GetInstance().m_LastFilename.c_str(), SConfig::GetInstance().m_LastFilename.size());
md5_file(game, gameMD5);
if (IsPlayingInput())
{
if (memcmp(gameMD5,MD5,16) == 0)
Core::DisplayMessage("MD5 of playing game matches the recorded game.", 2000);
else
PanicAlert("MD5 of playing game does not match the recorded game!");
}
else
{
memcpy(MD5, gameMD5,16);
Core::DisplayMessage("Finished Calculating md5.", 2000);
}
}
};

3
Source/Core/Core/Src/Movie.h
View File

@ -99,7 +99,7 @@ struct DTMHeader {
u8 videoBackend[16]; // UTF-8 representation of the video backend
u8 audioEmulator[16]; // UTF-8 representation of the audio emulator
u8 padBackend[16]; // UTF-8 representation of the input backend
unsigned char md5[16]; // MD5 of game iso
u64 recordingStartTime; // seconds since 1970 that recording started (used for RTC)
@ -178,6 +178,7 @@ bool PlayWiimote(int wiimote, u8* data, const struct WiimoteEmu::ReportFeatures&
void EndPlayInput(bool cont);
void SaveRecording(const char *filename);
void DoState(PointerWrap &p);
void CheckMD5();
std::string GetInputDisplay();