diff options
| -rw-r--r-- | src/core/hle/service/apt/apt.cpp | 83 |
1 files changed, 74 insertions, 9 deletions
diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp index e7b8f5305..ad6ba1fac 100644 --- a/src/core/hle/service/apt/apt.cpp +++ b/src/core/hle/service/apt/apt.cpp @@ -22,16 +22,73 @@ namespace Service { namespace APT { -// Address used for shared font (as observed on HW) -// TODO(bunnei): This is the hard-coded address where we currently dump the shared font from via -// https://github.com/citra-emu/3dsutils. This is technically a hack, and will not work at any -// address other than 0x18000000 due to internal pointers in the shared font dump that would need to -// be relocated. This might be fixed by dumping the shared font @ address 0x00000000 and then -// correctly mapping it in Citra, however we still do not understand how the mapping is determined. -static const VAddr SHARED_FONT_VADDR = 0x18000000; +/// BCFNT Shared Font file structures +namespace BCFNT { +struct CFNT { + u8 magic[4]; + u16_le endianness; + u16_le header_size; + u32_le version; + u32_le file_size; + u32_le num_blocks; +}; + +struct FINF { + u8 magic[4]; + u32_le section_size; + u8 font_type; + u8 line_feed; + u16_le alter_char_index; + u8 default_width[3]; + u8 encoding; + u32_le tglp_offset; + u32_le cwdh_offset; + u32_le cmap_offset; + u8 height; + u8 width; + u8 ascent; + u8 reserved; +}; + +struct TGLP { + u8 magic[4]; + u32_le section_size; + u8 cell_width; + u8 cell_height; + u8 baseline_position; + u8 max_character_width; + u32_le sheet_size; + u16_le num_sheets; + u16_le sheet_image_format; + u16_le num_columns; + u16_le num_rows; + u16_le sheet_width; + u16_le sheet_height; + u32_le sheet_data_offset; +}; + +struct CMAP { + u8 magic[4]; + u32_le section_size; + u16_le code_begin; + u16_le code_end; + u16_le mapping_method; + u16_le reserved; + u32_le next_cmap_offset; +}; + +struct CWDH { + u8 magic[4]; + u32_le section_size; + u16_le start_index; + u16_le end_index; + u32_le next_cwdh_offset; +}; +} /// Handle to shared memory region designated to for shared system font static Kernel::SharedPtr<Kernel::SharedMemory> shared_font_mem; +static bool shared_font_relocated = false; static Kernel::SharedPtr<Kernel::Mutex> lock; static Kernel::SharedPtr<Kernel::Event> notification_event; ///< APT notification event @@ -72,12 +129,19 @@ void Initialize(Service::Interface* self) { void GetSharedFont(Service::Interface* self) { u32* cmd_buff = Kernel::GetCommandBuffer(); + // The shared font has to be relocated to the new address before being passed to the application. + VAddr target_address = Memory::PhysicalToVirtualAddress(shared_font_mem->linear_heap_phys_address); + // The shared font dumped by 3dsutils (https://github.com/citra-emu/3dsutils) uses this address as base, + // so we relocate it from there to our real address. + static const VAddr SHARED_FONT_VADDR = 0x18000000; + if (!shared_font_relocated) + RelocateSharedFont(SHARED_FONT_VADDR, target_address); cmd_buff[0] = IPC::MakeHeader(0x44, 2, 2); cmd_buff[1] = RESULT_SUCCESS.raw; // No error // Since the SharedMemory interface doesn't provide the address at which the memory was allocated, - // the APT service calculates this address by scanning the entire address space (using svcQueryMemory) + // the real APT service calculates this address by scanning the entire address space (using svcQueryMemory) // and searches for an allocation of the same size as the Shared Font. - cmd_buff[2] = Memory::PhysicalToVirtualAddress(shared_font_mem->linear_heap_phys_address); + cmd_buff[2] = target_address; cmd_buff[3] = IPC::MoveHandleDesc(); cmd_buff[4] = Kernel::g_handle_table.Create(shared_font_mem).MoveFrom(); } @@ -447,6 +511,7 @@ void Init() { void Shutdown() { shared_font_mem = nullptr; + shared_font_relocated = false; lock = nullptr; notification_event = nullptr; parameter_event = nullptr; |