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Merge pull request #1401 from lioncash/vfs

vfs: Minor cleanup related changes to layered VFS code
This commit is contained in:
bunnei 2018-09-26 16:09:16 -04:00 committed by GitHub
commit 92dd496fb9
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 176 additions and 179 deletions

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@ -64,7 +64,7 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
if (concat.empty()) if (concat.empty())
return nullptr; return nullptr;
return FileSys::ConcatenateFiles(concat, dir->GetName()); return FileSys::ConcatenatedVfsFile::MakeConcatenatedFile(concat, dir->GetName());
} }
return vfs->OpenFile(path, FileSys::Mode::Read); return vfs->OpenFile(path, FileSys::Mode::Read);

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@ -73,7 +73,7 @@ static_assert(sizeof(RomFSFileEntry) == 0x20, "RomFSFileEntry has incorrect size
struct RomFSBuildFileContext; struct RomFSBuildFileContext;
struct RomFSBuildDirectoryContext { struct RomFSBuildDirectoryContext {
std::string path = ""; std::string path;
u32 cur_path_ofs = 0; u32 cur_path_ofs = 0;
u32 path_len = 0; u32 path_len = 0;
u32 entry_offset = 0; u32 entry_offset = 0;
@ -84,7 +84,7 @@ struct RomFSBuildDirectoryContext {
}; };
struct RomFSBuildFileContext { struct RomFSBuildFileContext {
std::string path = ""; std::string path;
u32 cur_path_ofs = 0; u32 cur_path_ofs = 0;
u32 path_len = 0; u32 path_len = 0;
u32 entry_offset = 0; u32 entry_offset = 0;
@ -92,12 +92,10 @@ struct RomFSBuildFileContext {
u64 size = 0; u64 size = 0;
std::shared_ptr<RomFSBuildDirectoryContext> parent; std::shared_ptr<RomFSBuildDirectoryContext> parent;
std::shared_ptr<RomFSBuildFileContext> sibling; std::shared_ptr<RomFSBuildFileContext> sibling;
VirtualFile source = nullptr; VirtualFile source;
RomFSBuildFileContext() : path(""), cur_path_ofs(0), path_len(0) {}
}; };
static u32 romfs_calc_path_hash(u32 parent, std::string path, u32 start, size_t path_len) { static u32 romfs_calc_path_hash(u32 parent, std::string path, u32 start, std::size_t path_len) {
u32 hash = parent ^ 123456789; u32 hash = parent ^ 123456789;
for (u32 i = 0; i < path_len; i++) { for (u32 i = 0; i < path_len; i++) {
hash = (hash >> 5) | (hash << 27); hash = (hash >> 5) | (hash << 27);
@ -107,13 +105,16 @@ static u32 romfs_calc_path_hash(u32 parent, std::string path, u32 start, size_t
return hash; return hash;
} }
static u32 romfs_get_hash_table_count(u32 num_entries) { static u64 romfs_get_hash_table_count(u64 num_entries) {
if (num_entries < 3) { if (num_entries < 3) {
return 3; return 3;
} else if (num_entries < 19) { }
if (num_entries < 19) {
return num_entries | 1; return num_entries | 1;
} }
u32 count = num_entries;
u64 count = num_entries;
while (count % 2 == 0 || count % 3 == 0 || count % 5 == 0 || count % 7 == 0 || while (count % 2 == 0 || count % 3 == 0 || count % 5 == 0 || count % 7 == 0 ||
count % 11 == 0 || count % 13 == 0 || count % 17 == 0) { count % 11 == 0 || count % 13 == 0 || count % 17 == 0) {
count++; count++;
@ -139,7 +140,7 @@ void RomFSBuildContext::VisitDirectory(VirtualDir root_romfs,
const auto child = std::make_shared<RomFSBuildDirectoryContext>(); const auto child = std::make_shared<RomFSBuildDirectoryContext>();
// Set child's path. // Set child's path.
child->cur_path_ofs = parent->path_len + 1; child->cur_path_ofs = parent->path_len + 1;
child->path_len = child->cur_path_ofs + kv.first.size(); child->path_len = child->cur_path_ofs + static_cast<u32>(kv.first.size());
child->path = parent->path + "/" + kv.first; child->path = parent->path + "/" + kv.first;
// Sanity check on path_len // Sanity check on path_len
@ -152,7 +153,7 @@ void RomFSBuildContext::VisitDirectory(VirtualDir root_romfs,
const auto child = std::make_shared<RomFSBuildFileContext>(); const auto child = std::make_shared<RomFSBuildFileContext>();
// Set child's path. // Set child's path.
child->cur_path_ofs = parent->path_len + 1; child->cur_path_ofs = parent->path_len + 1;
child->path_len = child->cur_path_ofs + kv.first.size(); child->path_len = child->cur_path_ofs + static_cast<u32>(kv.first.size());
child->path = parent->path + "/" + kv.first; child->path = parent->path + "/" + kv.first;
// Sanity check on path_len // Sanity check on path_len
@ -219,8 +220,8 @@ RomFSBuildContext::RomFSBuildContext(VirtualDir base_) : base(std::move(base_))
RomFSBuildContext::~RomFSBuildContext() = default; RomFSBuildContext::~RomFSBuildContext() = default;
std::map<u64, VirtualFile> RomFSBuildContext::Build() { std::map<u64, VirtualFile> RomFSBuildContext::Build() {
const auto dir_hash_table_entry_count = romfs_get_hash_table_count(num_dirs); const u64 dir_hash_table_entry_count = romfs_get_hash_table_count(num_dirs);
const auto file_hash_table_entry_count = romfs_get_hash_table_count(num_files); const u64 file_hash_table_entry_count = romfs_get_hash_table_count(num_files);
dir_hash_table_size = 4 * dir_hash_table_entry_count; dir_hash_table_size = 4 * dir_hash_table_entry_count;
file_hash_table_size = 4 * file_hash_table_entry_count; file_hash_table_size = 4 * file_hash_table_entry_count;
@ -233,12 +234,6 @@ std::map<u64, VirtualFile> RomFSBuildContext::Build() {
std::vector<u8> dir_table(dir_table_size); std::vector<u8> dir_table(dir_table_size);
std::vector<u8> file_table(file_table_size); std::vector<u8> file_table(file_table_size);
// Clear out hash tables.
for (u32 i = 0; i < dir_hash_table_entry_count; i++)
dir_hash_table[i] = ROMFS_ENTRY_EMPTY;
for (u32 i = 0; i < file_hash_table_entry_count; i++)
file_hash_table[i] = ROMFS_ENTRY_EMPTY;
std::shared_ptr<RomFSBuildFileContext> cur_file; std::shared_ptr<RomFSBuildFileContext> cur_file;
// Determine file offsets. // Determine file offsets.
@ -355,7 +350,7 @@ std::map<u64, VirtualFile> RomFSBuildContext::Build() {
std::vector<u8> metadata(file_hash_table_size + file_table_size + dir_hash_table_size + std::vector<u8> metadata(file_hash_table_size + file_table_size + dir_hash_table_size +
dir_table_size); dir_table_size);
auto index = 0; std::size_t index = 0;
std::memcpy(metadata.data(), dir_hash_table.data(), dir_hash_table.size() * sizeof(u32)); std::memcpy(metadata.data(), dir_hash_table.data(), dir_hash_table.size() * sizeof(u32));
index += dir_hash_table.size() * sizeof(u32); index += dir_hash_table.size() * sizeof(u32);
std::memcpy(metadata.data() + index, dir_table.data(), dir_table.size()); std::memcpy(metadata.data() + index, dir_table.data(), dir_table.size());

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@ -70,38 +70,40 @@ VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType type) { static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType type) {
const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id); const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
if (type == ContentRecordType::Program && load_dir != nullptr && load_dir->GetSize() > 0) { if (type != ContentRecordType::Program || load_dir == nullptr || load_dir->GetSize() <= 0) {
auto extracted = ExtractRomFS(romfs); return;
if (extracted != nullptr) {
auto patch_dirs = load_dir->GetSubdirectories();
std::sort(patch_dirs.begin(), patch_dirs.end(),
[](const VirtualDir& l, const VirtualDir& r) {
return l->GetName() < r->GetName();
});
std::vector<VirtualDir> layers;
layers.reserve(patch_dirs.size() + 1);
for (const auto& subdir : patch_dirs) {
auto romfs_dir = subdir->GetSubdirectory("romfs");
if (romfs_dir != nullptr)
layers.push_back(std::move(romfs_dir));
}
layers.push_back(std::move(extracted));
const auto layered = LayerDirectories(layers);
if (layered != nullptr) {
auto packed = CreateRomFS(layered);
if (packed != nullptr) {
LOG_INFO(Loader, " RomFS: LayeredFS patches applied successfully");
romfs = std::move(packed);
}
}
}
} }
auto extracted = ExtractRomFS(romfs);
if (extracted == nullptr) {
return;
}
auto patch_dirs = load_dir->GetSubdirectories();
std::sort(patch_dirs.begin(), patch_dirs.end(),
[](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
std::vector<VirtualDir> layers;
layers.reserve(patch_dirs.size() + 1);
for (const auto& subdir : patch_dirs) {
auto romfs_dir = subdir->GetSubdirectory("romfs");
if (romfs_dir != nullptr)
layers.push_back(std::move(romfs_dir));
}
layers.push_back(std::move(extracted));
auto layered = LayeredVfsDirectory::MakeLayeredDirectory(std::move(layers));
if (layered == nullptr) {
return;
}
auto packed = CreateRomFS(std::move(layered));
if (packed == nullptr) {
return;
}
LOG_INFO(Loader, " RomFS: LayeredFS patches applied successfully");
romfs = std::move(packed);
} }
VirtualFile PatchManager::PatchRomFS(VirtualFile romfs, u64 ivfc_offset, VirtualFile PatchManager::PatchRomFS(VirtualFile romfs, u64 ivfc_offset,

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@ -125,7 +125,7 @@ VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
if (concat.empty()) if (concat.empty())
return nullptr; return nullptr;
file = FileSys::ConcatenateFiles(concat, concat.front()->GetName()); file = ConcatenatedVfsFile::MakeConcatenatedFile(concat, concat.front()->GetName());
} }
return file; return file;

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@ -134,7 +134,7 @@ VirtualFile CreateRomFS(VirtualDir dir) {
return nullptr; return nullptr;
RomFSBuildContext ctx{dir}; RomFSBuildContext ctx{dir};
return ConcatenateFiles<0>(ctx.Build(), dir->GetName()); return ConcatenatedVfsFile::MakeConcatenatedFile(0, ctx.Build(), dir->GetName());
} }
} // namespace FileSys } // namespace FileSys

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@ -463,14 +463,14 @@ bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, std::size_t
return true; return true;
} }
bool VfsRawCopy(const VirtualFile& src, const VirtualFile& dest, size_t block_size) { bool VfsRawCopy(const VirtualFile& src, const VirtualFile& dest, std::size_t block_size) {
if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable()) if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
return false; return false;
if (!dest->Resize(src->GetSize())) if (!dest->Resize(src->GetSize()))
return false; return false;
std::vector<u8> temp(std::min(block_size, src->GetSize())); std::vector<u8> temp(std::min(block_size, src->GetSize()));
for (size_t i = 0; i < src->GetSize(); i += block_size) { for (std::size_t i = 0; i < src->GetSize(); i += block_size) {
const auto read = std::min(block_size, src->GetSize() - i); const auto read = std::min(block_size, src->GetSize() - i);
const auto block = src->Read(temp.data(), read, i); const auto block = src->Read(temp.data(), read, i);
@ -481,7 +481,7 @@ bool VfsRawCopy(const VirtualFile& src, const VirtualFile& dest, size_t block_si
return true; return true;
} }
bool VfsRawCopyD(const VirtualDir& src, const VirtualDir& dest, size_t block_size) { bool VfsRawCopyD(const VirtualDir& src, const VirtualDir& dest, std::size_t block_size) {
if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable()) if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
return false; return false;

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@ -315,18 +315,19 @@ public:
bool Rename(std::string_view name) override; bool Rename(std::string_view name) override;
}; };
// Compare the two files, byte-for-byte, in increments specificed by block_size // Compare the two files, byte-for-byte, in increments specified by block_size
bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, size_t block_size = 0x1000); bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2,
std::size_t block_size = 0x1000);
// A method that copies the raw data between two different implementations of VirtualFile. If you // A method that copies the raw data between two different implementations of VirtualFile. If you
// are using the same implementation, it is probably better to use the Copy method in the parent // are using the same implementation, it is probably better to use the Copy method in the parent
// directory of src/dest. // directory of src/dest.
bool VfsRawCopy(const VirtualFile& src, const VirtualFile& dest, size_t block_size = 0x1000); bool VfsRawCopy(const VirtualFile& src, const VirtualFile& dest, std::size_t block_size = 0x1000);
// A method that performs a similar function to VfsRawCopy above, but instead copies entire // A method that performs a similar function to VfsRawCopy above, but instead copies entire
// directories. It suffers the same performance penalties as above and an implementation-specific // directories. It suffers the same performance penalties as above and an implementation-specific
// Copy should always be preferred. // Copy should always be preferred.
bool VfsRawCopyD(const VirtualDir& src, const VirtualDir& dest, size_t block_size = 0x1000); bool VfsRawCopyD(const VirtualDir& src, const VirtualDir& dest, std::size_t block_size = 0x1000);
// Checks if the directory at path relative to rel exists. If it does, returns that. If it does not // Checks if the directory at path relative to rel exists. If it does, returns that. If it does not
// it attempts to create it and returns the new dir or nullptr on failure. // it attempts to create it and returns the new dir or nullptr on failure.

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@ -7,6 +7,7 @@
#include "common/assert.h" #include "common/assert.h"
#include "core/file_sys/vfs_concat.h" #include "core/file_sys/vfs_concat.h"
#include "core/file_sys/vfs_static.h"
namespace FileSys { namespace FileSys {
@ -22,15 +23,6 @@ static bool VerifyConcatenationMapContinuity(const std::map<u64, VirtualFile>& m
return map.begin()->first == 0; return map.begin()->first == 0;
} }
VirtualFile ConcatenateFiles(std::vector<VirtualFile> files, std::string name) {
if (files.empty())
return nullptr;
if (files.size() == 1)
return files[0];
return std::shared_ptr<VfsFile>(new ConcatenatedVfsFile(std::move(files), std::move(name)));
}
ConcatenatedVfsFile::ConcatenatedVfsFile(std::vector<VirtualFile> files_, std::string name) ConcatenatedVfsFile::ConcatenatedVfsFile(std::vector<VirtualFile> files_, std::string name)
: name(std::move(name)) { : name(std::move(name)) {
std::size_t next_offset = 0; std::size_t next_offset = 0;
@ -47,6 +39,41 @@ ConcatenatedVfsFile::ConcatenatedVfsFile(std::map<u64, VirtualFile> files_, std:
ConcatenatedVfsFile::~ConcatenatedVfsFile() = default; ConcatenatedVfsFile::~ConcatenatedVfsFile() = default;
VirtualFile ConcatenatedVfsFile::MakeConcatenatedFile(std::vector<VirtualFile> files,
std::string name) {
if (files.empty())
return nullptr;
if (files.size() == 1)
return files[0];
return std::shared_ptr<VfsFile>(new ConcatenatedVfsFile(std::move(files), std::move(name)));
}
VirtualFile ConcatenatedVfsFile::MakeConcatenatedFile(u8 filler_byte,
std::map<u64, VirtualFile> files,
std::string name) {
if (files.empty())
return nullptr;
if (files.size() == 1)
return files.begin()->second;
const auto last_valid = --files.end();
for (auto iter = files.begin(); iter != last_valid;) {
const auto old = iter++;
if (old->first + old->second->GetSize() != iter->first) {
files.emplace(old->first + old->second->GetSize(),
std::make_shared<StaticVfsFile>(filler_byte, iter->first - old->first -
old->second->GetSize()));
}
}
// Ensure the map starts at offset 0 (start of file), otherwise pad to fill.
if (files.begin()->first != 0)
files.emplace(0, std::make_shared<StaticVfsFile>(filler_byte, files.begin()->first));
return std::shared_ptr<VfsFile>(new ConcatenatedVfsFile(std::move(files), std::move(name)));
}
std::string ConcatenatedVfsFile::GetName() const { std::string ConcatenatedVfsFile::GetName() const {
if (files.empty()) if (files.empty())
return ""; return "";

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@ -7,26 +7,27 @@
#include <map> #include <map>
#include <memory> #include <memory>
#include <string_view> #include <string_view>
#include <boost/container/flat_map.hpp>
#include "core/file_sys/vfs.h" #include "core/file_sys/vfs.h"
#include "core/file_sys/vfs_static.h"
namespace FileSys { namespace FileSys {
// Class that wraps multiple vfs files and concatenates them, making reads seamless. Currently // Class that wraps multiple vfs files and concatenates them, making reads seamless. Currently
// read-only. // read-only.
class ConcatenatedVfsFile : public VfsFile { class ConcatenatedVfsFile : public VfsFile {
friend VirtualFile ConcatenateFiles(std::vector<VirtualFile> files, std::string name);
template <u8 filler_byte>
friend VirtualFile ConcatenateFiles(std::map<u64, VirtualFile> files, std::string name);
ConcatenatedVfsFile(std::vector<VirtualFile> files, std::string name); ConcatenatedVfsFile(std::vector<VirtualFile> files, std::string name);
ConcatenatedVfsFile(std::map<u64, VirtualFile> files, std::string name); ConcatenatedVfsFile(std::map<u64, VirtualFile> files, std::string name);
public: public:
~ConcatenatedVfsFile() override; ~ConcatenatedVfsFile() override;
/// Wrapper function to allow for more efficient handling of files.size() == 0, 1 cases.
static VirtualFile MakeConcatenatedFile(std::vector<VirtualFile> files, std::string name);
/// Convenience function that turns a map of offsets to files into a concatenated file, filling
/// gaps with a given filler byte.
static VirtualFile MakeConcatenatedFile(u8 filler_byte, std::map<u64, VirtualFile> files,
std::string name);
std::string GetName() const override; std::string GetName() const override;
std::size_t GetSize() const override; std::size_t GetSize() const override;
bool Resize(std::size_t new_size) override; bool Resize(std::size_t new_size) override;
@ -43,33 +44,4 @@ private:
std::string name; std::string name;
}; };
// Wrapper function to allow for more efficient handling of files.size() == 0, 1 cases.
VirtualFile ConcatenateFiles(std::vector<VirtualFile> files, std::string name);
// Convenience function that turns a map of offsets to files into a concatenated file, filling gaps
// with template parameter.
template <u8 filler_byte>
VirtualFile ConcatenateFiles(std::map<u64, VirtualFile> files, std::string name) {
if (files.empty())
return nullptr;
if (files.size() == 1)
return files.begin()->second;
const auto last_valid = --files.end();
for (auto iter = files.begin(); iter != last_valid;) {
const auto old = iter++;
if (old->first + old->second->GetSize() != iter->first) {
files.emplace(old->first + old->second->GetSize(),
std::make_shared<StaticVfsFile<filler_byte>>(iter->first - old->first -
old->second->GetSize()));
}
}
// Ensure the map starts at offset 0 (start of file), otherwise pad to fill.
if (files.begin()->first != 0)
files.emplace(0, std::make_shared<StaticVfsFile<filler_byte>>(files.begin()->first));
return std::shared_ptr<VfsFile>(new ConcatenatedVfsFile(std::move(files), std::move(name)));
}
} // namespace FileSys } // namespace FileSys

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@ -8,7 +8,13 @@
namespace FileSys { namespace FileSys {
VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name) { LayeredVfsDirectory::LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name)
: dirs(std::move(dirs)), name(std::move(name)) {}
LayeredVfsDirectory::~LayeredVfsDirectory() = default;
VirtualDir LayeredVfsDirectory::MakeLayeredDirectory(std::vector<VirtualDir> dirs,
std::string name) {
if (dirs.empty()) if (dirs.empty())
return nullptr; return nullptr;
if (dirs.size() == 1) if (dirs.size() == 1)
@ -17,11 +23,6 @@ VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name) {
return std::shared_ptr<VfsDirectory>(new LayeredVfsDirectory(std::move(dirs), std::move(name))); return std::shared_ptr<VfsDirectory>(new LayeredVfsDirectory(std::move(dirs), std::move(name)));
} }
LayeredVfsDirectory::LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name)
: dirs(std::move(dirs)), name(std::move(name)) {}
LayeredVfsDirectory::~LayeredVfsDirectory() = default;
std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFileRelative(std::string_view path) const { std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFileRelative(std::string_view path) const {
for (const auto& layer : dirs) { for (const auto& layer : dirs) {
const auto file = layer->GetFileRelative(path); const auto file = layer->GetFileRelative(path);
@ -41,7 +42,7 @@ std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetDirectoryRelative(
out.push_back(std::move(dir)); out.push_back(std::move(dir));
} }
return LayerDirectories(std::move(out)); return MakeLayeredDirectory(std::move(out));
} }
std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFile(std::string_view name) const { std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFile(std::string_view name) const {

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@ -9,20 +9,18 @@
namespace FileSys { namespace FileSys {
// Wrapper function to allow for more efficient handling of dirs.size() == 0, 1 cases.
VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name = "");
// Class that stacks multiple VfsDirectories on top of each other, attempting to read from the first // Class that stacks multiple VfsDirectories on top of each other, attempting to read from the first
// one and falling back to the one after. The highest priority directory (overwrites all others) // one and falling back to the one after. The highest priority directory (overwrites all others)
// should be element 0 in the dirs vector. // should be element 0 in the dirs vector.
class LayeredVfsDirectory : public VfsDirectory { class LayeredVfsDirectory : public VfsDirectory {
friend VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name);
LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name); LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name);
public: public:
~LayeredVfsDirectory() override; ~LayeredVfsDirectory() override;
/// Wrapper function to allow for more efficient handling of dirs.size() == 0, 1 cases.
static VirtualDir MakeLayeredDirectory(std::vector<VirtualDir> dirs, std::string name = "");
std::shared_ptr<VfsFile> GetFileRelative(std::string_view path) const override; std::shared_ptr<VfsFile> GetFileRelative(std::string_view path) const override;
std::shared_ptr<VfsDirectory> GetDirectoryRelative(std::string_view path) const override; std::shared_ptr<VfsDirectory> GetDirectoryRelative(std::string_view path) const override;
std::shared_ptr<VfsFile> GetFile(std::string_view name) const override; std::shared_ptr<VfsFile> GetFile(std::string_view name) const override;

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@ -12,21 +12,21 @@
namespace FileSys { namespace FileSys {
template <u8 value>
class StaticVfsFile : public VfsFile { class StaticVfsFile : public VfsFile {
public: public:
explicit StaticVfsFile(size_t size = 0, std::string name = "", VirtualDir parent = nullptr) explicit StaticVfsFile(u8 value, std::size_t size = 0, std::string name = "",
: size(size), name(std::move(name)), parent(std::move(parent)) {} VirtualDir parent = nullptr)
: value{value}, size{size}, name{std::move(name)}, parent{std::move(parent)} {}
std::string GetName() const override { std::string GetName() const override {
return name; return name;
} }
size_t GetSize() const override { std::size_t GetSize() const override {
return size; return size;
} }
bool Resize(size_t new_size) override { bool Resize(std::size_t new_size) override {
size = new_size; size = new_size;
return true; return true;
} }
@ -43,23 +43,23 @@ public:
return true; return true;
} }
size_t Read(u8* data, size_t length, size_t offset) const override { std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override {
const auto read = std::min(length, size - offset); const auto read = std::min(length, size - offset);
std::fill(data, data + read, value); std::fill(data, data + read, value);
return read; return read;
} }
size_t Write(const u8* data, size_t length, size_t offset) override { std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override {
return 0; return 0;
} }
boost::optional<u8> ReadByte(size_t offset) const override { boost::optional<u8> ReadByte(std::size_t offset) const override {
if (offset < size) if (offset < size)
return value; return value;
return boost::none; return boost::none;
} }
std::vector<u8> ReadBytes(size_t length, size_t offset) const override { std::vector<u8> ReadBytes(std::size_t length, std::size_t offset) const override {
const auto read = std::min(length, size - offset); const auto read = std::min(length, size - offset);
return std::vector<u8>(read, value); return std::vector<u8>(read, value);
} }
@ -70,7 +70,8 @@ public:
} }
private: private:
size_t size; u8 value;
std::size_t size;
std::string name; std::string name;
VirtualDir parent; VirtualDir parent;
}; };

View file

@ -9,7 +9,7 @@
namespace FileSys { namespace FileSys {
VectorVfsFile::VectorVfsFile(std::vector<u8> initial_data, std::string name, VirtualDir parent) VectorVfsFile::VectorVfsFile(std::vector<u8> initial_data, std::string name, VirtualDir parent)
: data(std::move(initial_data)), name(std::move(name)), parent(std::move(parent)) {} : data(std::move(initial_data)), parent(std::move(parent)), name(std::move(name)) {}
VectorVfsFile::~VectorVfsFile() = default; VectorVfsFile::~VectorVfsFile() = default;
@ -38,13 +38,13 @@ bool VectorVfsFile::IsReadable() const {
return true; return true;
} }
size_t VectorVfsFile::Read(u8* data_, size_t length, size_t offset) const { std::size_t VectorVfsFile::Read(u8* data_, std::size_t length, std::size_t offset) const {
const auto read = std::min(length, data.size() - offset); const auto read = std::min(length, data.size() - offset);
std::memcpy(data_, data.data() + offset, read); std::memcpy(data_, data.data() + offset, read);
return read; return read;
} }
size_t VectorVfsFile::Write(const u8* data_, size_t length, size_t offset) { std::size_t VectorVfsFile::Write(const u8* data_, std::size_t length, std::size_t offset) {
if (offset + length > data.size()) if (offset + length > data.size())
data.resize(offset + length); data.resize(offset + length);
const auto write = std::min(length, data.size() - offset); const auto write = std::min(length, data.size() - offset);

View file

@ -16,13 +16,13 @@ public:
~VectorVfsFile() override; ~VectorVfsFile() override;
std::string GetName() const override; std::string GetName() const override;
size_t GetSize() const override; std::size_t GetSize() const override;
bool Resize(size_t new_size) override; bool Resize(std::size_t new_size) override;
std::shared_ptr<VfsDirectory> GetContainingDirectory() const override; std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
bool IsWritable() const override; bool IsWritable() const override;
bool IsReadable() const override; bool IsReadable() const override;
size_t Read(u8* data, size_t length, size_t offset) const override; std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
size_t Write(const u8* data, size_t length, size_t offset) override; std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
bool Rename(std::string_view name) override; bool Rename(std::string_view name) override;
virtual void Assign(std::vector<u8> new_data); virtual void Assign(std::vector<u8> new_data);

View file

@ -756,11 +756,51 @@ void GMainWindow::OnGameListOpenFolder(u64 program_id, GameListOpenTarget target
QDesktopServices::openUrl(QUrl::fromLocalFile(qpath)); QDesktopServices::openUrl(QUrl::fromLocalFile(qpath));
} }
static std::size_t CalculateRomFSEntrySize(const FileSys::VirtualDir& dir, bool full) {
std::size_t out = 0;
for (const auto& subdir : dir->GetSubdirectories()) {
out += 1 + CalculateRomFSEntrySize(subdir, full);
}
return out + (full ? dir->GetFiles().size() : 0);
}
static bool RomFSRawCopy(QProgressDialog& dialog, const FileSys::VirtualDir& src,
const FileSys::VirtualDir& dest, std::size_t block_size, bool full) {
if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
return false;
if (dialog.wasCanceled())
return false;
if (full) {
for (const auto& file : src->GetFiles()) {
const auto out = VfsDirectoryCreateFileWrapper(dest, file->GetName());
if (!FileSys::VfsRawCopy(file, out, block_size))
return false;
dialog.setValue(dialog.value() + 1);
if (dialog.wasCanceled())
return false;
}
}
for (const auto& dir : src->GetSubdirectories()) {
const auto out = dest->CreateSubdirectory(dir->GetName());
if (!RomFSRawCopy(dialog, dir, out, block_size, full))
return false;
dialog.setValue(dialog.value() + 1);
if (dialog.wasCanceled())
return false;
}
return true;
}
void GMainWindow::OnGameListDumpRomFS(u64 program_id, const std::string& game_path) { void GMainWindow::OnGameListDumpRomFS(u64 program_id, const std::string& game_path) {
const auto path = fmt::format("{}{:016X}/romfs", const auto path = fmt::format("{}{:016X}/romfs",
FileUtil::GetUserPath(FileUtil::UserPath::DumpDir), program_id); FileUtil::GetUserPath(FileUtil::UserPath::DumpDir), program_id);
auto failed = [this, &path]() { const auto failed = [this, &path] {
QMessageBox::warning(this, tr("RomFS Extraction Failed!"), QMessageBox::warning(this, tr("RomFS Extraction Failed!"),
tr("There was an error copying the RomFS files or the user " tr("There was an error copying the RomFS files or the user "
"cancelled the operation.")); "cancelled the operation."));
@ -808,53 +848,13 @@ void GMainWindow::OnGameListDumpRomFS(u64 program_id, const std::string& game_pa
failed(); failed();
const auto full = res == "Full"; const auto full = res == "Full";
const auto entry_size = CalculateRomFSEntrySize(extracted, full);
const static std::function<size_t(const FileSys::VirtualDir&, bool)> calculate_entry_size =
[](const FileSys::VirtualDir& dir, bool full) {
size_t out = 0;
for (const auto& subdir : dir->GetSubdirectories())
out += 1 + calculate_entry_size(subdir, full);
return out + full ? dir->GetFiles().size() : 0;
};
const auto entry_size = calculate_entry_size(extracted, full);
QProgressDialog progress(tr("Extracting RomFS..."), tr("Cancel"), 0, entry_size, this); QProgressDialog progress(tr("Extracting RomFS..."), tr("Cancel"), 0, entry_size, this);
progress.setWindowModality(Qt::WindowModal); progress.setWindowModality(Qt::WindowModal);
progress.setMinimumDuration(100); progress.setMinimumDuration(100);
const static std::function<bool(QProgressDialog&, const FileSys::VirtualDir&, if (RomFSRawCopy(progress, extracted, out, 0x400000, full)) {
const FileSys::VirtualDir&, size_t, bool)>
qt_raw_copy = [](QProgressDialog& dialog, const FileSys::VirtualDir& src,
const FileSys::VirtualDir& dest, size_t block_size, bool full) {
if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
return false;
if (dialog.wasCanceled())
return false;
if (full) {
for (const auto& file : src->GetFiles()) {
const auto out = VfsDirectoryCreateFileWrapper(dest, file->GetName());
if (!FileSys::VfsRawCopy(file, out, block_size))
return false;
dialog.setValue(dialog.value() + 1);
if (dialog.wasCanceled())
return false;
}
}
for (const auto& dir : src->GetSubdirectories()) {
const auto out = dest->CreateSubdirectory(dir->GetName());
if (!qt_raw_copy(dialog, dir, out, block_size, full))
return false;
dialog.setValue(dialog.value() + 1);
if (dialog.wasCanceled())
return false;
}
return true;
};
if (qt_raw_copy(progress, extracted, out, 0x400000, full)) {
progress.close(); progress.close();
QMessageBox::information(this, tr("RomFS Extraction Succeeded!"), QMessageBox::information(this, tr("RomFS Extraction Succeeded!"),
tr("The operation completed successfully.")); tr("The operation completed successfully."));
@ -931,7 +931,7 @@ void GMainWindow::OnMenuInstallToNAND() {
} }
const auto qt_raw_copy = [this](const FileSys::VirtualFile& src, const auto qt_raw_copy = [this](const FileSys::VirtualFile& src,
const FileSys::VirtualFile& dest, size_t block_size) { const FileSys::VirtualFile& dest, std::size_t block_size) {
if (src == nullptr || dest == nullptr) if (src == nullptr || dest == nullptr)
return false; return false;
if (!dest->Resize(src->GetSize())) if (!dest->Resize(src->GetSize()))