From 920742d41817688b1c15fb54f87c337ec7a7c91f Mon Sep 17 00:00:00 2001
From: Zach Hilman <zachhilman@gmail.com>
Date: Fri, 5 Jul 2019 18:51:41 -0400
Subject: [PATCH] system_archive: Synthesize shared fonts system archives

---
 .../file_sys/system_archive/shared_font.cpp   | 78 +++++++++++++++++++
 .../file_sys/system_archive/shared_font.h     | 17 ++++
 .../system_archive/system_archive.cpp         | 11 +--
 3 files changed, 101 insertions(+), 5 deletions(-)
 create mode 100644 src/core/file_sys/system_archive/shared_font.cpp
 create mode 100644 src/core/file_sys/system_archive/shared_font.h

diff --git a/src/core/file_sys/system_archive/shared_font.cpp b/src/core/file_sys/system_archive/shared_font.cpp
new file mode 100644
index 0000000000..2c05eb42e2
--- /dev/null
+++ b/src/core/file_sys/system_archive/shared_font.cpp
@@ -0,0 +1,78 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/file_sys/system_archive/data/font_chinese_simplified.h"
+#include "core/file_sys/system_archive/data/font_chinese_traditional.h"
+#include "core/file_sys/system_archive/data/font_extended_chinese_simplified.h"
+#include "core/file_sys/system_archive/data/font_korean.h"
+#include "core/file_sys/system_archive/data/font_nintendo_extended.h"
+#include "core/file_sys/system_archive/data/font_standard.h"
+#include "core/file_sys/system_archive/shared_font.h"
+#include "core/file_sys/vfs_vector.h"
+#include "core/hle/service/ns/pl_u.h"
+
+namespace FileSys::SystemArchive {
+
+namespace {
+
+template <std::size_t Size>
+VirtualFile PackBFTTF(const std::array<u8, Size>& data, const std::string& name) {
+    std::vector<u32> vec(Size / sizeof(u32));
+    std::memcpy(vec.data(), data.data(), vec.size() * sizeof(u32));
+
+    std::vector<u8> bfttf(Size + sizeof(u64));
+
+    u64 offset = 0;
+    Service::NS::EncryptSharedFont(vec, bfttf, offset);
+    return std::make_shared<VectorVfsFile>(std::move(bfttf), name);
+}
+
+} // Anonymous namespace
+
+VirtualDir FontNintendoExtension() {
+    return std::make_shared<VectorVfsDirectory>(
+        std::vector<VirtualFile>{
+            PackBFTTF(SharedFontData::FONT_NINTENDO_EXTENDED, "nintendo_ext_003.bfttf"),
+            PackBFTTF(SharedFontData::FONT_NINTENDO_EXTENDED, "nintendo_ext2_003.bfttf"),
+        },
+        std::vector<VirtualDir>{});
+}
+
+VirtualDir FontStandard() {
+    return std::make_shared<VectorVfsDirectory>(
+        std::vector<VirtualFile>{
+            PackBFTTF(SharedFontData::FONT_STANDARD, "nintendo_udsg-r_std_003.bfttf"),
+        },
+        std::vector<VirtualDir>{});
+}
+
+VirtualDir FontKorean() {
+    return std::make_shared<VectorVfsDirectory>(
+        std::vector<VirtualFile>{
+            PackBFTTF(SharedFontData::FONT_KOREAN, "nintendo_udsg-r_ko_003.bfttf"),
+        },
+        std::vector<VirtualDir>{});
+}
+
+VirtualDir FontChineseTraditional() {
+    return std::make_shared<VectorVfsDirectory>(
+        std::vector<VirtualFile>{
+            PackBFTTF(SharedFontData::FONT_CHINESE_TRADITIONAL,
+                      "nintendo_udjxh-db_zh-tw_003.bfttf"),
+        },
+        std::vector<VirtualDir>{});
+}
+
+VirtualDir FontChineseSimple() {
+    return std::make_shared<VectorVfsDirectory>(
+        std::vector<VirtualFile>{
+            PackBFTTF(SharedFontData::FONT_CHINESE_SIMPLIFIED,
+                      "nintendo_udsg-r_org_zh-cn_003.bfttf"),
+            PackBFTTF(SharedFontData::FONT_EXTENDED_CHINESE_SIMPLIFIED,
+                      "nintendo_udsg-r_ext_zh-cn_003.bfttf"),
+        },
+        std::vector<VirtualDir>{});
+}
+
+} // namespace FileSys::SystemArchive
diff --git a/src/core/file_sys/system_archive/shared_font.h b/src/core/file_sys/system_archive/shared_font.h
new file mode 100644
index 0000000000..6d8de565bf
--- /dev/null
+++ b/src/core/file_sys/system_archive/shared_font.h
@@ -0,0 +1,17 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/file_sys/vfs_types.h"
+
+namespace FileSys::SystemArchive {
+
+VirtualDir FontNintendoExtension();
+VirtualDir FontStandard();
+VirtualDir FontKorean();
+VirtualDir FontChineseTraditional();
+VirtualDir FontChineseSimple();
+
+} // namespace FileSys::SystemArchive
diff --git a/src/core/file_sys/system_archive/system_archive.cpp b/src/core/file_sys/system_archive/system_archive.cpp
index 6d84453834..e93d100a5d 100644
--- a/src/core/file_sys/system_archive/system_archive.cpp
+++ b/src/core/file_sys/system_archive/system_archive.cpp
@@ -6,6 +6,7 @@
 #include "core/file_sys/romfs.h"
 #include "core/file_sys/system_archive/mii_model.h"
 #include "core/file_sys/system_archive/ng_word.h"
+#include "core/file_sys/system_archive/shared_font.h"
 #include "core/file_sys/system_archive/system_archive.h"
 #include "core/file_sys/system_archive/system_version.h"
 
@@ -39,11 +40,11 @@ constexpr std::array<SystemArchiveDescriptor, SYSTEM_ARCHIVE_COUNT> SYSTEM_ARCHI
     {0x010000000000080D, "UrlBlackList", nullptr},
     {0x010000000000080E, "TimeZoneBinary", nullptr},
     {0x010000000000080F, "CertStoreCruiser", nullptr},
-    {0x0100000000000810, "FontNintendoExtension", nullptr},
-    {0x0100000000000811, "FontStandard", nullptr},
-    {0x0100000000000812, "FontKorean", nullptr},
-    {0x0100000000000813, "FontChineseTraditional", nullptr},
-    {0x0100000000000814, "FontChineseSimple", nullptr},
+    {0x0100000000000810, "FontNintendoExtension", &FontNintendoExtension},
+    {0x0100000000000811, "FontStandard", &FontStandard},
+    {0x0100000000000812, "FontKorean", &FontKorean},
+    {0x0100000000000813, "FontChineseTraditional", &FontChineseTraditional},
+    {0x0100000000000814, "FontChineseSimple", &FontChineseSimple},
     {0x0100000000000815, "FontBfcpx", nullptr},
     {0x0100000000000816, "SystemUpdate", nullptr},
     {0x0100000000000817, "0100000000000817", nullptr},