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DiscScrubber: Deduplicate code for writing to file

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This commit is contained in:
JosJuice
2017-06-17 13:37:33 +02:00
parent 1f31390b54
commit 89c901780e
2 changed files with 33 additions and 47 deletions
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78
Source/Core/DiscIO/DiscExtractor.cpp
View File

@ -34,37 +34,41 @@ u64 ReadFile(const Volume& volume, const Partition& partition, const FileInfo* f
return read_length; return read_length;
} }
bool ExportData(const Volume& volume, const Partition& partition, u64 offset, u64 size,
const std::string& export_filename)
{
File::IOFile f(export_filename, "wb");
if (!f)
return false;
while (size)
{
// Limit read size to 128 MB
const size_t read_size = static_cast<size_t>(std::min<u64>(size, 0x08000000));
std::vector<u8> buffer(read_size);
if (!volume.Read(offset, read_size, buffer.data(), partition))
return false;
if (!f.WriteBytes(buffer.data(), read_size))
return false;
size -= read_size;
offset += read_size;
}
return true;
}
bool ExportFile(const Volume& volume, const Partition& partition, const FileInfo* file_info, bool ExportFile(const Volume& volume, const Partition& partition, const FileInfo* file_info,
const std::string& export_filename) const std::string& export_filename)
{ {
if (!file_info || file_info->IsDirectory()) if (!file_info || file_info->IsDirectory())
return false; return false;
u64 remaining_size = file_info->GetSize(); return ExportData(volume, partition, file_info->GetOffset(), file_info->GetSize(),
u64 file_offset = file_info->GetOffset(); export_filename);
File::IOFile f(export_filename, "wb");
if (!f)
return false;
while (remaining_size)
{
// Limit read size to 128 MB
const size_t read_size = static_cast<size_t>(std::min<u64>(remaining_size, 0x08000000));
std::vector<u8> buffer(read_size);
if (!volume.Read(file_offset, read_size, buffer.data(), partition))
return false;
if (!f.WriteBytes(buffer.data(), read_size))
return false;
remaining_size -= read_size;
file_offset += read_size;
}
return true;
} }
bool ExportApploader(const Volume& volume, const Partition& partition, bool ExportApploader(const Volume& volume, const Partition& partition,
@ -81,17 +85,7 @@ bool ExportApploader(const Volume& volume, const Partition& partition,
*apploader_size += *trailer_size + header_size; *apploader_size += *trailer_size + header_size;
DEBUG_LOG(DISCIO, "Apploader size -> %x", *apploader_size); DEBUG_LOG(DISCIO, "Apploader size -> %x", *apploader_size);
std::vector<u8> buffer(*apploader_size); return ExportData(volume, partition, 0x2440, *apploader_size, export_folder + "/apploader.img");
if (volume.Read(0x2440, *apploader_size, buffer.data(), partition))
{
const std::string export_name(export_folder + "/apploader.img");
File::IOFile apploader_file(export_name, "wb");
if (apploader_file.WriteBytes(buffer.data(), *apploader_size))
return true;
}
return false;
} }
std::optional<u64> GetBootDOLOffset(const Volume& volume, const Partition& partition) std::optional<u64> GetBootDOLOffset(const Volume& volume, const Partition& partition)
@ -147,17 +141,7 @@ bool ExportDOL(const Volume& volume, const Partition& partition, const std::stri
if (!dol_size) if (!dol_size)
return false; return false;
std::vector<u8> buffer(*dol_size); return ExportData(volume, partition, *dol_offset, *dol_size, export_folder + "/boot.dol");
if (volume.Read(*dol_offset, *dol_size, buffer.data(), partition))
{
const std::string export_name(export_folder + "/boot.dol");
File::IOFile dol_file(export_name, "wb");
if (dol_file.WriteBytes(buffer.data(), *dol_size))
return true;
}
return false;
} }
} // namespace DiscIO } // namespace DiscIO

2
Source/Core/DiscIO/DiscExtractor.h
View File

@ -16,6 +16,8 @@ class Volume;
u64 ReadFile(const Volume& volume, const Partition& partition, const FileInfo* file_info, u64 ReadFile(const Volume& volume, const Partition& partition, const FileInfo* file_info,
u8* buffer, u64 max_buffer_size, u64 offset_in_file = 0); u8* buffer, u64 max_buffer_size, u64 offset_in_file = 0);
bool ExportData(const Volume& volume, const Partition& partition, u64 offset, u64 size,
const std::string& export_filename);
bool ExportFile(const Volume& volume, const Partition& partition, const FileInfo* file_info, bool ExportFile(const Volume& volume, const Partition& partition, const FileInfo* file_info,
const std::string& export_filename); const std::string& export_filename);
bool ExportApploader(const Volume& volume, const Partition& partition, bool ExportApploader(const Volume& volume, const Partition& partition,