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https://github.com/yuzu-emu/yuzu.git
synced 2024-08-23 13:20:41 +02:00
APT: load different shared font depending on the region
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parent
f251b8873a
commit
59a9aaf388
@ -19,6 +19,7 @@
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#include "core/hle/service/apt/apt_s.h"
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#include "core/hle/service/apt/apt_u.h"
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#include "core/hle/service/apt/bcfnt/bcfnt.h"
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#include "core/hle/service/cfg/cfg.h"
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#include "core/hle/service/fs/archive.h"
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#include "core/hle/service/ptm/ptm.h"
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#include "core/hle/service/service.h"
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@ -198,6 +199,143 @@ void Initialize(Service::Interface* self) {
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Kernel::g_handle_table.Create(slot_data->parameter_event).Unwrap());
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}
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static u32 DecompressLZ11(const u8* in, u8* out) {
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u32_le decompressed_size;
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memcpy(&decompressed_size, in, sizeof(u32));
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in += 4;
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u8 type = decompressed_size & 0xFF;
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ASSERT(type == 0x11);
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decompressed_size >>= 8;
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u32 current_out_size = 0;
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u8 flags = 0, mask = 1;
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while (current_out_size < decompressed_size) {
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if (mask == 1) {
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flags = *(in++);
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mask = 0x80;
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} else {
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mask >>= 1;
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}
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if (flags & mask) {
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u8 byte1 = *(in++);
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u32 length = byte1 >> 4;
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u32 offset;
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if (length == 0) {
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u8 byte2 = *(in++);
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u8 byte3 = *(in++);
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length = (((byte1 & 0x0F) << 4) | (byte2 >> 4)) + 0x11;
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offset = (((byte2 & 0x0F) << 8) | byte3) + 0x1;
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} else if (length == 1) {
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u8 byte2 = *(in++);
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u8 byte3 = *(in++);
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u8 byte4 = *(in++);
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length = (((byte1 & 0x0F) << 12) | (byte2 << 4) | (byte3 >> 4)) + 0x111;
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offset = (((byte3 & 0x0F) << 8) | byte4) + 0x1;
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} else {
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u8 byte2 = *(in++);
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length = (byte1 >> 4) + 0x1;
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offset = (((byte1 & 0x0F) << 8) | byte2) + 0x1;
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}
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for (u32 i = 0; i < length; i++) {
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*out = *(out - offset);
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++out;
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}
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current_out_size += length;
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} else {
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*(out++) = *(in++);
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current_out_size++;
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}
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}
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return decompressed_size;
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}
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static bool LoadSharedFont() {
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u8 font_region_code;
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switch (CFG::GetRegionValue()) {
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case 4: // CHN
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font_region_code = 2;
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break;
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case 5: // KOR
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font_region_code = 3;
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break;
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case 6: // TWN
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font_region_code = 4;
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break;
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default: // JPN/EUR/USA
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font_region_code = 1;
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break;
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}
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const u64_le shared_font_archive_id_low = 0x0004009b00014002 | ((font_region_code - 1) << 8);
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const u64_le shared_font_archive_id_high = 0x00000001ffffff00;
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std::vector<u8> shared_font_archive_id(16);
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std::memcpy(&shared_font_archive_id[0], &shared_font_archive_id_low, sizeof(u64));
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std::memcpy(&shared_font_archive_id[8], &shared_font_archive_id_high, sizeof(u64));
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FileSys::Path archive_path(shared_font_archive_id);
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auto archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::NCCH, archive_path);
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if (archive_result.Failed())
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return false;
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std::vector<u8> romfs_path(20, 0); // 20-byte all zero path for opening RomFS
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FileSys::Path file_path(romfs_path);
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FileSys::Mode open_mode = {};
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open_mode.read_flag.Assign(1);
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auto file_result = Service::FS::OpenFileFromArchive(*archive_result, file_path, open_mode);
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if (file_result.Failed())
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return false;
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auto romfs = std::move(file_result).Unwrap();
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std::vector<u8> romfs_buffer(romfs->backend->GetSize());
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romfs->backend->Read(0, romfs_buffer.size(), romfs_buffer.data());
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romfs->backend->Close();
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const char16_t* file_name[4] = {u"cbf_std.bcfnt.lz", u"cbf_zh-Hans-CN.bcfnt.lz",
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u"cbf_ko-Hang-KR.bcfnt.lz", u"cbf_zh-Hant-TW.bcfnt.lz"};
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const u8* font_file =
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RomFS::GetFilePointer(romfs_buffer.data(), {file_name[font_region_code - 1]});
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if (font_file == nullptr)
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return false;
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struct {
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u32_le status;
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u32_le region;
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u32_le decompressed_size;
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INSERT_PADDING_WORDS(0x1D);
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} shared_font_header{};
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static_assert(sizeof(shared_font_header) == 0x80, "shared_font_header has incorrect size");
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shared_font_header.status = 2; // successfully loaded
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shared_font_header.region = font_region_code;
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shared_font_header.decompressed_size =
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DecompressLZ11(font_file, shared_font_mem->GetPointer(0x80));
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std::memcpy(shared_font_mem->GetPointer(), &shared_font_header, sizeof(shared_font_header));
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*shared_font_mem->GetPointer(0x83) = 'U'; // Change the magic from "CFNT" to "CFNU"
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return true;
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}
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static bool LoadLegacySharedFont() {
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// This is the legacy method to load shared font.
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// The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
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// generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
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// a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
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// "shared_font.bin" in the Citra "sysdata" directory.
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std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
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FileUtil::CreateFullPath(filepath); // Create path if not already created
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FileUtil::IOFile file(filepath, "rb");
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if (file.IsOpen()) {
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file.ReadBytes(shared_font_mem->GetPointer(), file.GetSize());
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return true;
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}
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return false;
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}
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void GetSharedFont(Service::Interface* self) {
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IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x44, 0, 0); // 0x00440000
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
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@ -206,12 +344,21 @@ void GetSharedFont(Service::Interface* self) {
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Core::Telemetry().AddField(Telemetry::FieldType::Session, "RequiresSharedFont", true);
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if (!shared_font_loaded) {
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// On real 3DS, font loading happens on booting. However, we load it on demand to coordinate
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// with CFG region auto configuration, which happens later than APT initialization.
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if (LoadSharedFont()) {
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shared_font_loaded = true;
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} else if (LoadLegacySharedFont()) {
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LOG_WARNING(Service_APT, "Loaded shared font by legacy method");
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shared_font_loaded = true;
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} else {
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LOG_ERROR(Service_APT, "shared font file missing - go dump it from your 3ds");
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rb.Push<u32>(-1); // TODO: Find the right error code
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rb.Skip(1 + 2, true);
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Core::System::GetInstance().SetStatus(Core::System::ResultStatus::ErrorSharedFont);
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return;
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}
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}
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// The shared font has to be relocated to the new address before being passed to the
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// application.
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@ -863,125 +1010,6 @@ void CheckNew3DS(Service::Interface* self) {
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LOG_WARNING(Service_APT, "(STUBBED) called");
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}
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static u32 DecompressLZ11(const u8* in, u8* out) {
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u32_le decompressed_size;
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memcpy(&decompressed_size, in, sizeof(u32));
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in += 4;
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u8 type = decompressed_size & 0xFF;
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ASSERT(type == 0x11);
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decompressed_size >>= 8;
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u32 current_out_size = 0;
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u8 flags = 0, mask = 1;
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while (current_out_size < decompressed_size) {
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if (mask == 1) {
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flags = *(in++);
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mask = 0x80;
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} else {
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mask >>= 1;
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}
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if (flags & mask) {
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u8 byte1 = *(in++);
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u32 length = byte1 >> 4;
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u32 offset;
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if (length == 0) {
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u8 byte2 = *(in++);
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u8 byte3 = *(in++);
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length = (((byte1 & 0x0F) << 4) | (byte2 >> 4)) + 0x11;
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offset = (((byte2 & 0x0F) << 8) | byte3) + 0x1;
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} else if (length == 1) {
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u8 byte2 = *(in++);
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u8 byte3 = *(in++);
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u8 byte4 = *(in++);
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length = (((byte1 & 0x0F) << 12) | (byte2 << 4) | (byte3 >> 4)) + 0x111;
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offset = (((byte3 & 0x0F) << 8) | byte4) + 0x1;
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} else {
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u8 byte2 = *(in++);
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length = (byte1 >> 4) + 0x1;
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offset = (((byte1 & 0x0F) << 8) | byte2) + 0x1;
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}
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for (u32 i = 0; i < length; i++) {
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*out = *(out - offset);
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++out;
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}
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current_out_size += length;
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} else {
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*(out++) = *(in++);
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current_out_size++;
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}
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}
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return decompressed_size;
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}
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static bool LoadSharedFont() {
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// TODO (wwylele): load different font archive for region CHN/KOR/TWN
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const u64_le shared_font_archive_id_low = 0x0004009b00014002;
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const u64_le shared_font_archive_id_high = 0x00000001ffffff00;
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std::vector<u8> shared_font_archive_id(16);
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std::memcpy(&shared_font_archive_id[0], &shared_font_archive_id_low, sizeof(u64));
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std::memcpy(&shared_font_archive_id[8], &shared_font_archive_id_high, sizeof(u64));
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FileSys::Path archive_path(shared_font_archive_id);
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auto archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::NCCH, archive_path);
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if (archive_result.Failed())
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return false;
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std::vector<u8> romfs_path(20, 0); // 20-byte all zero path for opening RomFS
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FileSys::Path file_path(romfs_path);
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FileSys::Mode open_mode = {};
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open_mode.read_flag.Assign(1);
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auto file_result = Service::FS::OpenFileFromArchive(*archive_result, file_path, open_mode);
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if (file_result.Failed())
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return false;
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auto romfs = std::move(file_result).Unwrap();
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std::vector<u8> romfs_buffer(romfs->backend->GetSize());
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romfs->backend->Read(0, romfs_buffer.size(), romfs_buffer.data());
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romfs->backend->Close();
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const u8* font_file = RomFS::GetFilePointer(romfs_buffer.data(), {u"cbf_std.bcfnt.lz"});
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if (font_file == nullptr)
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return false;
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struct {
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u32_le status;
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u32_le region;
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u32_le decompressed_size;
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INSERT_PADDING_WORDS(0x1D);
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} shared_font_header{};
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static_assert(sizeof(shared_font_header) == 0x80, "shared_font_header has incorrect size");
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shared_font_header.status = 2; // successfully loaded
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shared_font_header.region = 1; // region JPN/EUR/USA
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shared_font_header.decompressed_size =
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DecompressLZ11(font_file, shared_font_mem->GetPointer(0x80));
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std::memcpy(shared_font_mem->GetPointer(), &shared_font_header, sizeof(shared_font_header));
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*shared_font_mem->GetPointer(0x83) = 'U'; // Change the magic from "CFNT" to "CFNU"
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return true;
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}
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static bool LoadLegacySharedFont() {
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// This is the legacy method to load shared font.
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// The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
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// generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
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// a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
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// "shared_font.bin" in the Citra "sysdata" directory.
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std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
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FileUtil::CreateFullPath(filepath); // Create path if not already created
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FileUtil::IOFile file(filepath, "rb");
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if (file.IsOpen()) {
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file.ReadBytes(shared_font_mem->GetPointer(), file.GetSize());
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return true;
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}
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return false;
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}
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void Init() {
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AddService(new APT_A_Interface);
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AddService(new APT_S_Interface);
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@ -995,16 +1023,6 @@ void Init() {
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MemoryPermission::ReadWrite, MemoryPermission::Read, 0,
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Kernel::MemoryRegion::SYSTEM, "APT:SharedFont");
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if (LoadSharedFont()) {
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shared_font_loaded = true;
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} else if (LoadLegacySharedFont()) {
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LOG_WARNING(Service_APT, "Loaded shared font by legacy method");
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shared_font_loaded = true;
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} else {
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LOG_WARNING(Service_APT, "Unable to load shared font");
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shared_font_loaded = false;
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}
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lock = Kernel::Mutex::Create(false, "APT_U:Lock");
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cpu_percent = 0;
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@ -168,7 +168,7 @@ void GetCountryCodeID(Service::Interface* self) {
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cmd_buff[2] = country_code_id;
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}
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static u32 GetRegionValue() {
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u32 GetRegionValue() {
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if (Settings::values.region_value == Settings::REGION_VALUE_AUTO_SELECT)
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return preferred_region_code;
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@ -101,6 +101,8 @@ void GetCountryCodeString(Service::Interface* self);
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*/
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void GetCountryCodeID(Service::Interface* self);
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u32 GetRegionValue();
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/**
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* CFG::SecureInfoGetRegion service function
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* Inputs:
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