From 86f6b6b7b2d930e8203114332b04a5c49a780b06 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Thu, 10 Aug 2023 21:34:43 -0400
Subject: vfs: expand support for NCA reading

---
 src/core/file_sys/nca_patch.h | 145 ------------------------------------------
 1 file changed, 145 deletions(-)
 delete mode 100644 src/core/file_sys/nca_patch.h

(limited to 'src/core/file_sys/nca_patch.h')

diff --git a/src/core/file_sys/nca_patch.h b/src/core/file_sys/nca_patch.h
deleted file mode 100644
index 595e3ef09..000000000
--- a/src/core/file_sys/nca_patch.h
+++ /dev/null
@@ -1,145 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <array>
-#include <memory>
-#include <vector>
-
-#include "common/common_funcs.h"
-#include "common/common_types.h"
-#include "common/swap.h"
-#include "core/crypto/key_manager.h"
-
-namespace FileSys {
-
-#pragma pack(push, 1)
-struct RelocationEntry {
-    u64_le address_patch;
-    u64_le address_source;
-    u32 from_patch;
-};
-#pragma pack(pop)
-static_assert(sizeof(RelocationEntry) == 0x14, "RelocationEntry has incorrect size.");
-
-struct RelocationBucketRaw {
-    INSERT_PADDING_BYTES(4);
-    u32_le number_entries;
-    u64_le end_offset;
-    std::array<RelocationEntry, 0x332> relocation_entries;
-    INSERT_PADDING_BYTES(8);
-};
-static_assert(sizeof(RelocationBucketRaw) == 0x4000, "RelocationBucketRaw has incorrect size.");
-
-// Vector version of RelocationBucketRaw
-struct RelocationBucket {
-    u32 number_entries;
-    u64 end_offset;
-    std::vector<RelocationEntry> entries;
-};
-
-struct RelocationBlock {
-    INSERT_PADDING_BYTES(4);
-    u32_le number_buckets;
-    u64_le size;
-    std::array<u64, 0x7FE> base_offsets;
-};
-static_assert(sizeof(RelocationBlock) == 0x4000, "RelocationBlock has incorrect size.");
-
-struct SubsectionEntry {
-    u64_le address_patch;
-    INSERT_PADDING_BYTES(0x4);
-    u32_le ctr;
-};
-static_assert(sizeof(SubsectionEntry) == 0x10, "SubsectionEntry has incorrect size.");
-
-struct SubsectionBucketRaw {
-    INSERT_PADDING_BYTES(4);
-    u32_le number_entries;
-    u64_le end_offset;
-    std::array<SubsectionEntry, 0x3FF> subsection_entries;
-};
-static_assert(sizeof(SubsectionBucketRaw) == 0x4000, "SubsectionBucketRaw has incorrect size.");
-
-// Vector version of SubsectionBucketRaw
-struct SubsectionBucket {
-    u32 number_entries;
-    u64 end_offset;
-    std::vector<SubsectionEntry> entries;
-};
-
-struct SubsectionBlock {
-    INSERT_PADDING_BYTES(4);
-    u32_le number_buckets;
-    u64_le size;
-    std::array<u64, 0x7FE> base_offsets;
-};
-static_assert(sizeof(SubsectionBlock) == 0x4000, "SubsectionBlock has incorrect size.");
-
-inline RelocationBucket ConvertRelocationBucketRaw(RelocationBucketRaw raw) {
-    return {raw.number_entries,
-            raw.end_offset,
-            {raw.relocation_entries.begin(), raw.relocation_entries.begin() + raw.number_entries}};
-}
-
-inline SubsectionBucket ConvertSubsectionBucketRaw(SubsectionBucketRaw raw) {
-    return {raw.number_entries,
-            raw.end_offset,
-            {raw.subsection_entries.begin(), raw.subsection_entries.begin() + raw.number_entries}};
-}
-
-class BKTR : public VfsFile {
-public:
-    BKTR(VirtualFile base_romfs, VirtualFile bktr_romfs, RelocationBlock relocation,
-         std::vector<RelocationBucket> relocation_buckets, SubsectionBlock subsection,
-         std::vector<SubsectionBucket> subsection_buckets, bool is_encrypted,
-         Core::Crypto::Key128 key, u64 base_offset, u64 ivfc_offset, std::array<u8, 8> section_ctr);
-    ~BKTR() override;
-
-    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
-
-    std::string GetName() const override;
-
-    std::size_t GetSize() const override;
-
-    bool Resize(std::size_t new_size) override;
-
-    VirtualDir GetContainingDirectory() const override;
-
-    bool IsWritable() const override;
-
-    bool IsReadable() const override;
-
-    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
-
-    bool Rename(std::string_view name) override;
-
-private:
-    RelocationEntry GetRelocationEntry(u64 offset) const;
-    RelocationEntry GetNextRelocationEntry(u64 offset) const;
-
-    SubsectionEntry GetSubsectionEntry(u64 offset) const;
-    SubsectionEntry GetNextSubsectionEntry(u64 offset) const;
-
-    RelocationBlock relocation;
-    std::vector<RelocationBucket> relocation_buckets;
-    SubsectionBlock subsection;
-    std::vector<SubsectionBucket> subsection_buckets;
-
-    // Should be the raw base romfs, decrypted.
-    VirtualFile base_romfs;
-    // Should be the raw BKTR romfs, (located at media_offset with size media_size).
-    VirtualFile bktr_romfs;
-
-    bool encrypted;
-    Core::Crypto::Key128 key;
-
-    // Base offset into NCA, used for IV calculation.
-    u64 base_offset;
-    // Distance between IVFC start and RomFS start, used for base reads
-    u64 ivfc_offset;
-    std::array<u8, 8> section_ctr;
-};
-
-} // namespace FileSys
-- 
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