From abf8dcd700ce6e8af35aff9b8fa568dfe6acfecb Mon Sep 17 00:00:00 2001 From: Subv Date: Tue, 19 Apr 2016 12:13:00 -0500 Subject: [PATCH] APT: Move the shared font loading and relocation functions to their own subdirectory services/apt/bcfnt. --- src/core/CMakeLists.txt | 2 + src/core/hle/service/apt/apt.cpp | 73 ++------------------ src/core/hle/service/apt/bcfnt/bcfnt.cpp | 71 +++++++++++++++++++ src/core/hle/service/apt/bcfnt/bcfnt.h | 87 ++++++++++++++++++++++++ 4 files changed, 167 insertions(+), 66 deletions(-) create mode 100644 src/core/hle/service/apt/bcfnt/bcfnt.cpp create mode 100644 src/core/hle/service/apt/bcfnt/bcfnt.h diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index a8d891689..f6a7566bf 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -52,6 +52,7 @@ set(SRCS hle/service/apt/apt_a.cpp hle/service/apt/apt_s.cpp hle/service/apt/apt_u.cpp + hle/service/apt/bcfnt/bcfnt.cpp hle/service/boss/boss.cpp hle/service/boss/boss_p.cpp hle/service/boss/boss_u.cpp @@ -185,6 +186,7 @@ set(HEADERS hle/service/apt/apt_a.h hle/service/apt/apt_s.h hle/service/apt/apt_u.h + hle/service/apt/bcfnt/bcfnt.h hle/service/boss/boss.h hle/service/boss/boss_p.h hle/service/boss/boss_u.h diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp index ad6ba1fac..73fce6079 100644 --- a/src/core/hle/service/apt/apt.cpp +++ b/src/core/hle/service/apt/apt.cpp @@ -12,6 +12,7 @@ #include "core/hle/service/apt/apt_a.h" #include "core/hle/service/apt/apt_s.h" #include "core/hle/service/apt/apt_u.h" +#include "core/hle/service/apt/bcfnt/bcfnt.h" #include "core/hle/service/fs/archive.h" #include "core/hle/kernel/event.h" @@ -22,70 +23,6 @@ namespace Service { namespace APT { -/// 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 shared_font_mem; static bool shared_font_relocated = false; @@ -133,9 +70,13 @@ void GetSharedFont(Service::Interface* self) { 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. + // TODO(Subv): This address is wrong if the shared font is dumped from a n3DS, + // we need a way to automatically calculate the original address of the font from the file. static const VAddr SHARED_FONT_VADDR = 0x18000000; - if (!shared_font_relocated) - RelocateSharedFont(SHARED_FONT_VADDR, target_address); + if (!shared_font_relocated) { + BCFNT::RelocateSharedFont(shared_font_mem, SHARED_FONT_VADDR, target_address); + shared_font_relocated = true; + } 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, diff --git a/src/core/hle/service/apt/bcfnt/bcfnt.cpp b/src/core/hle/service/apt/bcfnt/bcfnt.cpp new file mode 100644 index 000000000..b0d39d4a5 --- /dev/null +++ b/src/core/hle/service/apt/bcfnt/bcfnt.cpp @@ -0,0 +1,71 @@ +// Copyright 2016 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "core/hle/service/apt/bcfnt/bcfnt.h" +#include "core/hle/service/service.h" + +namespace Service { +namespace APT { +namespace BCFNT { + +void RelocateSharedFont(Kernel::SharedPtr shared_font, VAddr previous_address, VAddr new_address) { + static const u32 SharedFontStartOffset = 0x80; + u8* data = shared_font->GetPointer(SharedFontStartOffset); + + CFNT cfnt; + memcpy(&cfnt, data, sizeof(cfnt)); + + // Advance past the header + data = shared_font->GetPointer(SharedFontStartOffset + cfnt.header_size); + + for (unsigned block = 0; block < cfnt.num_blocks; ++block) { + + u32 section_size = 0; + if (memcmp(data, "FINF", 4) == 0) { + BCFNT::FINF finf; + memcpy(&finf, data, sizeof(finf)); + section_size = finf.section_size; + + // Relocate the offsets in the FINF section + finf.cmap_offset += new_address - previous_address; + finf.cwdh_offset += new_address - previous_address; + finf.tglp_offset += new_address - previous_address; + + memcpy(data, &finf, sizeof(finf)); + } else if (memcmp(data, "CMAP", 4) == 0) { + BCFNT::CMAP cmap; + memcpy(&cmap, data, sizeof(cmap)); + section_size = cmap.section_size; + + // Relocate the offsets in the CMAP section + cmap.next_cmap_offset += new_address - previous_address; + + memcpy(data, &cmap, sizeof(cmap)); + } else if (memcmp(data, "CWDH", 4) == 0) { + BCFNT::CWDH cwdh; + memcpy(&cwdh, data, sizeof(cwdh)); + section_size = cwdh.section_size; + + // Relocate the offsets in the CWDH section + cwdh.next_cwdh_offset += new_address - previous_address; + + memcpy(data, &cwdh, sizeof(cwdh)); + } else if (memcmp(data, "TGLP", 4) == 0) { + BCFNT::TGLP tglp; + memcpy(&tglp, data, sizeof(tglp)); + section_size = tglp.section_size; + + // Relocate the offsets in the TGLP section + tglp.sheet_data_offset += new_address - previous_address; + + memcpy(data, &tglp, sizeof(tglp)); + } + + data += section_size; + } +} + +} // namespace BCFNT +} // namespace APT +} // namespace Service \ No newline at end of file diff --git a/src/core/hle/service/apt/bcfnt/bcfnt.h b/src/core/hle/service/apt/bcfnt/bcfnt.h new file mode 100644 index 000000000..388c6bea0 --- /dev/null +++ b/src/core/hle/service/apt/bcfnt/bcfnt.h @@ -0,0 +1,87 @@ +// Copyright 2016 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/swap.h" + +#include "core/hle/kernel/shared_memory.h" +#include "core/hle/service/service.h" + +namespace Service { +namespace APT { +namespace BCFNT { ///< BCFNT Shared Font file structures + +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; +}; + +/** + * Relocates the internal addresses of the BCFNT Shared Font to the new base. + * @param shared_font SharedMemory object that contains the Shared Font + * @param previous_address Previous address at which the offsets in the structure were based. + * @param new_address New base for the offsets in the structure. + */ +void RelocateSharedFont(Kernel::SharedPtr shared_font, VAddr previous_address, VAddr new_address); + +} // namespace BCFNT +} // namespace APT +} // namespace Service