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-rw-r--r--src/core/hle/service/apt/apt.cpp154
1 files changed, 134 insertions, 20 deletions
diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp
index 25e7b777d..df4b5cc3f 100644
--- a/src/core/hle/service/apt/apt.cpp
+++ b/src/core/hle/service/apt/apt.cpp
@@ -6,11 +6,13 @@
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/core.h"
+#include "core/file_sys/file_backend.h"
#include "core/hle/applets/applet.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/mutex.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/shared_memory.h"
+#include "core/hle/romfs.h"
#include "core/hle/service/apt/apt.h"
#include "core/hle/service/apt/apt_a.h"
#include "core/hle/service/apt/apt_s.h"
@@ -27,6 +29,7 @@ namespace APT {
/// Handle to shared memory region designated to for shared system font
static Kernel::SharedPtr<Kernel::SharedMemory> shared_font_mem;
+static bool shared_font_loaded = false;
static bool shared_font_relocated = false;
static Kernel::SharedPtr<Kernel::Mutex> lock;
@@ -71,7 +74,7 @@ void Initialize(Service::Interface* self) {
void GetSharedFont(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x44, 0, 0); // 0x00440000
IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
- if (!shared_font_mem) {
+ if (!shared_font_loaded) {
LOG_ERROR(Service_APT, "shared font file missing - go dump it from your 3ds");
rb.Push<u32>(-1); // TODO: Find the right error code
rb.Skip(1 + 2, true);
@@ -644,36 +647,146 @@ void CheckNew3DS(Service::Interface* self) {
LOG_WARNING(Service_APT, "(STUBBED) called");
}
-void Init() {
- AddService(new APT_A_Interface);
- AddService(new APT_S_Interface);
- AddService(new APT_U_Interface);
-
- HLE::Applets::Init();
-
- // Load the shared system font (if available).
+static u32 DecompressLZ11(const u8* in, u8* out) {
+ u32_le decompressed_size;
+ memcpy(&decompressed_size, in, sizeof(u32));
+ in += 4;
+
+ u8 type = decompressed_size & 0xFF;
+ ASSERT(type == 0x11);
+ decompressed_size >>= 8;
+
+ u32 current_out_size = 0;
+ u8 flags = 0, mask = 1;
+ while (current_out_size < decompressed_size) {
+ if (mask == 1) {
+ flags = *(in++);
+ mask = 0x80;
+ } else {
+ mask >>= 1;
+ }
+
+ if (flags & mask) {
+ u8 byte1 = *(in++);
+ u32 length = byte1 >> 4;
+ u32 offset;
+ if (length == 0) {
+ u8 byte2 = *(in++);
+ u8 byte3 = *(in++);
+ length = (((byte1 & 0x0F) << 4) | (byte2 >> 4)) + 0x11;
+ offset = (((byte2 & 0x0F) << 8) | byte3) + 0x1;
+ } else if (length == 1) {
+ u8 byte2 = *(in++);
+ u8 byte3 = *(in++);
+ u8 byte4 = *(in++);
+ length = (((byte1 & 0x0F) << 12) | (byte2 << 4) | (byte3 >> 4)) + 0x111;
+ offset = (((byte3 & 0x0F) << 8) | byte4) + 0x1;
+ } else {
+ u8 byte2 = *(in++);
+ length = (byte1 >> 4) + 0x1;
+ offset = (((byte1 & 0x0F) << 8) | byte2) + 0x1;
+ }
+
+ for (u32 i = 0; i < length; i++) {
+ *out = *(out - offset);
+ ++out;
+ }
+
+ current_out_size += length;
+ } else {
+ *(out++) = *(in++);
+ current_out_size++;
+ }
+ }
+ return decompressed_size;
+}
+
+static bool LoadSharedFont() {
+ // TODO (wwylele): load different font archive for region CHN/KOR/TWN
+ const u64_le shared_font_archive_id_low = 0x0004009b00014002;
+ const u64_le shared_font_archive_id_high = 0x00000001ffffff00;
+ std::vector<u8> shared_font_archive_id(16);
+ std::memcpy(&shared_font_archive_id[0], &shared_font_archive_id_low, sizeof(u64));
+ std::memcpy(&shared_font_archive_id[8], &shared_font_archive_id_high, sizeof(u64));
+ FileSys::Path archive_path(shared_font_archive_id);
+ auto archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::NCCH, archive_path);
+ if (archive_result.Failed())
+ return false;
+
+ std::vector<u8> romfs_path(20, 0); // 20-byte all zero path for opening RomFS
+ FileSys::Path file_path(romfs_path);
+ FileSys::Mode open_mode = {};
+ open_mode.read_flag.Assign(1);
+ auto file_result = Service::FS::OpenFileFromArchive(*archive_result, file_path, open_mode);
+ if (file_result.Failed())
+ return false;
+
+ auto romfs = std::move(file_result).Unwrap();
+ std::vector<u8> romfs_buffer(romfs->backend->GetSize());
+ romfs->backend->Read(0, romfs_buffer.size(), romfs_buffer.data());
+ romfs->backend->Close();
+
+ const u8* font_file = RomFS::GetFilePointer(romfs_buffer.data(), {u"cbf_std.bcfnt.lz"});
+ if (font_file == nullptr)
+ return false;
+
+ struct {
+ u32_le status;
+ u32_le region;
+ u32_le decompressed_size;
+ INSERT_PADDING_WORDS(0x1D);
+ } shared_font_header{};
+ static_assert(sizeof(shared_font_header) == 0x80, "shared_font_header has incorrect size");
+
+ shared_font_header.status = 2; // successfully loaded
+ shared_font_header.region = 1; // region JPN/EUR/USA
+ shared_font_header.decompressed_size =
+ DecompressLZ11(font_file, shared_font_mem->GetPointer(0x80));
+ std::memcpy(shared_font_mem->GetPointer(), &shared_font_header, sizeof(shared_font_header));
+ *shared_font_mem->GetPointer(0x83) = 'U'; // Change the magic from "CFNT" to "CFNU"
+
+ return true;
+}
+
+static bool LoadLegacySharedFont() {
+ // This is the legacy method to load shared font.
// The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
// generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
// a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
// "shared_font.bin" in the Citra "sysdata" directory.
-
std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
FileUtil::CreateFullPath(filepath); // Create path if not already created
FileUtil::IOFile file(filepath, "rb");
-
if (file.IsOpen()) {
- // Create shared font memory object
- using Kernel::MemoryPermission;
- shared_font_mem =
- Kernel::SharedMemory::Create(nullptr, 0x332000, // 3272 KB
- MemoryPermission::ReadWrite, MemoryPermission::Read, 0,
- Kernel::MemoryRegion::SYSTEM, "APT:SharedFont");
- // Read shared font data
file.ReadBytes(shared_font_mem->GetPointer(), file.GetSize());
+ return true;
+ }
+
+ return false;
+}
+
+void Init() {
+ AddService(new APT_A_Interface);
+ AddService(new APT_S_Interface);
+ AddService(new APT_U_Interface);
+
+ HLE::Applets::Init();
+
+ using Kernel::MemoryPermission;
+ shared_font_mem =
+ Kernel::SharedMemory::Create(nullptr, 0x332000, // 3272 KB
+ MemoryPermission::ReadWrite, MemoryPermission::Read, 0,
+ Kernel::MemoryRegion::SYSTEM, "APT:SharedFont");
+
+ if (LoadSharedFont()) {
+ shared_font_loaded = true;
+ } else if (LoadLegacySharedFont()) {
+ LOG_WARNING(Service_APT, "Loaded shared font by legacy method");
+ shared_font_loaded = true;
} else {
- LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
- shared_font_mem = nullptr;
+ LOG_WARNING(Service_APT, "Unable to load shared font");
+ shared_font_loaded = false;
}
lock = Kernel::Mutex::Create(false, "APT_U:Lock");
@@ -693,6 +806,7 @@ void Init() {
void Shutdown() {
shared_font_mem = nullptr;
+ shared_font_loaded = false;
shared_font_relocated = false;
lock = nullptr;
notification_event = nullptr;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 03:01:07 +0200