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APT: Move the shared font loading and relocation functions to their own subdirectory services/apt/bcfnt.

pull/15/merge
Subv 10 years ago
parent
5679d066b5
commit
abf8dcd700
4 changed files with 167 additions and 66 deletions
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  1. 2
      src/core/CMakeLists.txt
  2. 73
      src/core/hle/service/apt/apt.cpp
  3. 71
      src/core/hle/service/apt/bcfnt/bcfnt.cpp
  4. 87
      src/core/hle/service/apt/bcfnt/bcfnt.h

2
src/core/CMakeLists.txt
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@ -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

73
src/core/hle/service/apt/apt.cpp
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@ -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<Kernel::SharedMemory> 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,

71
src/core/hle/service/apt/bcfnt/bcfnt.cpp
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@ -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<Kernel::SharedMemory> 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

87
src/core/hle/service/apt/bcfnt/bcfnt.h
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@ -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<Kernel::SharedMemory> shared_font, VAddr previous_address, VAddr new_address);
} // namespace BCFNT
} // namespace APT
} // namespace Service
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