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DiscIO: Use Common::Lazy for loading filesystems

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This simplifies FileMonitor a lot and also lets us
clean up FilesystemPanel.
This commit is contained in:
JosJuice
2017-08-02 18:16:56 +02:00
parent 0d07821935
commit 38304da947
21 changed files with 182 additions and 172 deletions
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38
Source/Core/DiscIO/VolumeGC.cpp
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@ -2,6 +2,7 @@
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <cinttypes>
#include <cstddef>
#include <map>
#include <memory>
@ -20,6 +21,7 @@
#include "DiscIO/Blob.h"
#include "DiscIO/DiscExtractor.h"
#include "DiscIO/Enums.h"
#include "DiscIO/FileSystemGCWii.h"
#include "DiscIO/Filesystem.h"
#include "DiscIO/Volume.h"
#include "DiscIO/VolumeGC.h"
@ -29,6 +31,11 @@ namespace DiscIO
VolumeGC::VolumeGC(std::unique_ptr<BlobReader> reader) : m_pReader(std::move(reader))
{
_assert_(m_pReader);
m_file_system = [this]() -> std::unique_ptr<FileSystem> {
auto file_system = std::make_unique<FileSystemGCWii>(this, PARTITION_NONE);
return file_system->IsValid() ? std::move(file_system) : nullptr;
};
}
VolumeGC::~VolumeGC()
@ -43,6 +50,11 @@ bool VolumeGC::Read(u64 _Offset, u64 _Length, u8* _pBuffer, const Partition& par
return m_pReader->Read(_Offset, _Length, _pBuffer);
}
const FileSystem* VolumeGC::GetFileSystem(const Partition& partition) const
{
return m_file_system->get();
}
std::string VolumeGC::GetGameID(const Partition& partition) const
{
static const std::string NO_UID("NO_UID");
@ -192,30 +204,16 @@ void VolumeGC::LoadBannerFile() const
m_banner_loaded = true;
GCBanner banner_file;
std::unique_ptr<FileSystem> file_system(CreateFileSystem(this, PARTITION_NONE));
if (!file_system)
return;
std::unique_ptr<FileInfo> file_info = file_system->FindFileInfo("opening.bnr");
if (!file_info)
return;
size_t file_size = static_cast<size_t>(file_info->GetSize());
constexpr int BNR1_MAGIC = 0x31524e42;
constexpr int BNR2_MAGIC = 0x32524e42;
if (file_size != BNR1_SIZE && file_size != BNR2_SIZE)
{
WARN_LOG(DISCIO, "Invalid opening.bnr. Size: %0zx", file_size);
return;
}
if (file_size != ReadFile(*this, PARTITION_NONE, file_info.get(),
reinterpret_cast<u8*>(&banner_file), file_size))
const u64 file_size = ReadFile(*this, PARTITION_NONE, "opening.bnr",
reinterpret_cast<u8*>(&banner_file), sizeof(GCBanner));
if (file_size < 4)
{
WARN_LOG(DISCIO, "Could not read opening.bnr.");
return;
return; // Return early so that we don't access the uninitialized banner_file.id
}
constexpr u32 BNR1_MAGIC = 0x31524e42;
constexpr u32 BNR2_MAGIC = 0x32524e42;
bool is_bnr1;
if (banner_file.id == BNR1_MAGIC && file_size == BNR1_SIZE)
{