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FifoDataFile: Improve error handling when reading

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This commit is contained in:
Pokechu22 2021-08-06 15:45:12 -07:00
parent 5cd2160d43
commit 59a1a603ff
1 changed files with 30 additions and 9 deletions
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39
Source/Core/Core/FifoPlayer/FifoDataFile.cpp
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@ -209,15 +209,33 @@ std::unique_ptr<FifoDataFile> FifoDataFile::Load(const std::string& filename, bo
if (!file)
return nullptr;
FileHeader header;
file.ReadBytes(&header, sizeof(header));
auto panic_failed_to_read = []() {
CriticalAlertFmtT("Failed to read DFF file.");
return nullptr;
};
if (header.fileId != FILE_ID || header.min_loader_version > VERSION_NUMBER)
if (file.GetSize() == 0)
{
CriticalAlertFmtT("DFF file size is 0; corrupt/incomplete file?");
return nullptr;
}
FileHeader header;
if (!file.ReadBytes(&header, sizeof(header)))
return panic_failed_to_read();
if (header.fileId != FILE_ID)
{
CriticalAlertFmtT("DFF file magic number is incorrect: got {0:08x}, expected {1:08x}",
header.fileId, FILE_ID);
return nullptr;
}
if (header.min_loader_version > VERSION_NUMBER)
{
CriticalAlertFmtT(
"The DFF's minimum loader version ({0}) exceeds the version of this FIFO Player ({1})",
header.min_loader_version, VERSION_NUMBER);
file.Close();
return nullptr;
}
@ -244,7 +262,6 @@ std::unique_ptr<FifoDataFile> FifoDataFile::Load(const std::string& filename, bo
Config::SetCurrent(Config::MAIN_MEM1_SIZE, header.mem1_size);
Config::SetCurrent(Config::MAIN_MEM2_SIZE, header.mem2_size);
file.Close();
return dataFile;
}
@ -263,7 +280,6 @@ std::unique_ptr<FifoDataFile> FifoDataFile::Load(const std::string& filename, bo
Memory::GetExRamSizeReal(), Memory::GetExRamSizeReal() / 0x100000,
header.mem1_size, header.mem1_size / 0x100000, header.mem2_size,
header.mem2_size / 0x100000);
file.Close();
return nullptr;
}
@ -292,6 +308,9 @@ std::unique_ptr<FifoDataFile> FifoDataFile::Load(const std::string& filename, bo
file.ReadArray(dataFile->m_TexMem, size);
}
if (!file.IsGood())
return panic_failed_to_read();
// idk what else these could be used for, but it'd be a shame to not make them available.
dataFile->m_ram_size_real = header.mem1_size;
dataFile->m_exram_size_real = header.mem2_size;
@ -302,7 +321,8 @@ std::unique_ptr<FifoDataFile> FifoDataFile::Load(const std::string& filename, bo
u64 frameOffset = header.frameListOffset + (i * sizeof(FileFrameInfo));
file.Seek(frameOffset, SEEK_SET);
FileFrameInfo srcFrame;
file.ReadBytes(&srcFrame, sizeof(FileFrameInfo));
if (!file.ReadBytes(&srcFrame, sizeof(FileFrameInfo)))
return panic_failed_to_read();
FifoFrameInfo dstFrame;
dstFrame.fifoData.resize(srcFrame.fifoDataSize);
@ -315,11 +335,12 @@ std::unique_ptr<FifoDataFile> FifoDataFile::Load(const std::string& filename, bo
ReadMemoryUpdates(srcFrame.memoryUpdatesOffset, srcFrame.numMemoryUpdates,
dstFrame.memoryUpdates, file);
if (!file.IsGood())
return panic_failed_to_read();
dataFile->AddFrame(dstFrame);
}
file.Close();
return dataFile;
}