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vfs_static: Remove template byte parameter from StaticVfsFile

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This converts it into a regular constructor parameter. There's no need
to make this a template parameter on the class when it functions
perfectly well as a constructor argument.

This also reduces the amount of code bloat produced by the compiler, as
it doesn't need to generate the same code for multiple different
instantiations of the same class type, but with a different fill value.
This commit is contained in:
Lioncash
2018-09-25 17:26:09 -04:00
parent 7b81e1e525
commit 14e2df5610
4 changed files with 42 additions and 42 deletions
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33
src/core/file_sys/vfs_concat.h
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@ -7,9 +7,7 @@
#include <map>
#include <memory>
#include <string_view>
#include <boost/container/flat_map.hpp>
#include "core/file_sys/vfs.h"
#include "core/file_sys/vfs_static.h"
namespace FileSys {
@ -17,9 +15,8 @@ namespace FileSys {
// read-only.
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);
friend VirtualFile ConcatenateFiles(u8 filler_byte, std::map<u64, VirtualFile> files,
std::string name);
ConcatenatedVfsFile(std::vector<VirtualFile> files, std::string name);
ConcatenatedVfsFile(std::map<u64, VirtualFile> files, std::string name);
@ -47,29 +44,7 @@ private:
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)));
}
// with a given filler byte.
VirtualFile ConcatenateFiles(u8 filler_byte, std::map<u64, VirtualFile> files, std::string name);
} // namespace FileSys