romfs: Implement CreateRomFS
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6eada3c57d
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050547b801
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@ -4,8 +4,10 @@
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#include "common/common_types.h"
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#include "common/swap.h"
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#include "core/file_sys/fsmitm_romfsbuild.hpp"
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#include "core/file_sys/romfs.h"
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#include "core/file_sys/vfs.h"
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#include "core/file_sys/vfs_concat.h"
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#include "core/file_sys/vfs_offset.h"
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#include "core/file_sys/vfs_vector.h"
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@ -98,7 +100,7 @@ void ProcessDirectory(VirtualFile file, std::size_t dir_offset, std::size_t file
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}
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}
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VirtualDir ExtractRomFS(VirtualFile file) {
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VirtualDir ExtractRomFS(VirtualFile file, bool traverse_into_data) {
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RomFSHeader header{};
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if (file->ReadObject(&header) != sizeof(RomFSHeader))
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return nullptr;
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@ -117,9 +119,21 @@ VirtualDir ExtractRomFS(VirtualFile file) {
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VirtualDir out = std::move(root);
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while (out->GetSubdirectory("") != nullptr)
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out = out->GetSubdirectory("");
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while (out->GetSubdirectories().size() == 1 && out->GetFiles().size() == 0) {
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if (out->GetSubdirectories().front()->GetName() == "data" && !traverse_into_data)
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break;
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out = out->GetSubdirectories().front();
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}
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return out;
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}
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VirtualFile CreateRomFS(VirtualDir dir) {
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if (dir == nullptr)
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return nullptr;
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RomFSBuildContext ctx{dir};
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return ConcatenateFiles<0>(ctx.Build(), dir->GetName());
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}
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} // namespace FileSys
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@ -5,6 +5,7 @@
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#pragma once
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#include <array>
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#include <map>
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#include "common/common_funcs.h"
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#include "common/common_types.h"
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#include "common/swap.h"
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@ -12,6 +13,8 @@
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namespace FileSys {
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struct RomFSHeader;
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struct IVFCLevel {
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u64_le offset;
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u64_le size;
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@ -31,6 +34,10 @@ static_assert(sizeof(IVFCHeader) == 0xE0, "IVFCHeader has incorrect size.");
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// Converts a RomFS binary blob to VFS Filesystem
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// Returns nullptr on failure
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VirtualDir ExtractRomFS(VirtualFile file);
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VirtualDir ExtractRomFS(VirtualFile file, bool traverse_into_data = true);
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// Converts a VFS filesystem into a RomFS binary
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// Returns nullptr on failure
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VirtualFile CreateRomFS(VirtualDir dir);
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} // namespace FileSys
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