APT: Move the shared font loading and relocation functions to their own subdirectory services/apt/bcfnt.
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// Copyright 2016 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "core/hle/service/apt/bcfnt/bcfnt.h"
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#include "core/hle/service/service.h"
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namespace Service {
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namespace APT {
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namespace BCFNT {
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void RelocateSharedFont(Kernel::SharedPtr<Kernel::SharedMemory> shared_font, VAddr previous_address, VAddr new_address) {
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static const u32 SharedFontStartOffset = 0x80;
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u8* data = shared_font->GetPointer(SharedFontStartOffset);
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CFNT cfnt;
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memcpy(&cfnt, data, sizeof(cfnt));
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// Advance past the header
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data = shared_font->GetPointer(SharedFontStartOffset + cfnt.header_size);
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for (unsigned block = 0; block < cfnt.num_blocks; ++block) {
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u32 section_size = 0;
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if (memcmp(data, "FINF", 4) == 0) {
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BCFNT::FINF finf;
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memcpy(&finf, data, sizeof(finf));
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section_size = finf.section_size;
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// Relocate the offsets in the FINF section
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finf.cmap_offset += new_address - previous_address;
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finf.cwdh_offset += new_address - previous_address;
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finf.tglp_offset += new_address - previous_address;
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memcpy(data, &finf, sizeof(finf));
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} else if (memcmp(data, "CMAP", 4) == 0) {
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BCFNT::CMAP cmap;
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memcpy(&cmap, data, sizeof(cmap));
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section_size = cmap.section_size;
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// Relocate the offsets in the CMAP section
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cmap.next_cmap_offset += new_address - previous_address;
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memcpy(data, &cmap, sizeof(cmap));
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} else if (memcmp(data, "CWDH", 4) == 0) {
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BCFNT::CWDH cwdh;
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memcpy(&cwdh, data, sizeof(cwdh));
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section_size = cwdh.section_size;
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// Relocate the offsets in the CWDH section
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cwdh.next_cwdh_offset += new_address - previous_address;
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memcpy(data, &cwdh, sizeof(cwdh));
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} else if (memcmp(data, "TGLP", 4) == 0) {
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BCFNT::TGLP tglp;
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memcpy(&tglp, data, sizeof(tglp));
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section_size = tglp.section_size;
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// Relocate the offsets in the TGLP section
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tglp.sheet_data_offset += new_address - previous_address;
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memcpy(data, &tglp, sizeof(tglp));
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}
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data += section_size;
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}
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}
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} // namespace BCFNT
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} // namespace APT
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} // namespace Service
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@ -0,0 +1,87 @@
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// Copyright 2016 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include "common/swap.h"
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#include "core/hle/kernel/shared_memory.h"
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#include "core/hle/service/service.h"
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namespace Service {
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namespace APT {
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namespace BCFNT { ///< BCFNT Shared Font file structures
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struct CFNT {
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u8 magic[4];
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u16_le endianness;
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u16_le header_size;
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u32_le version;
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u32_le file_size;
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u32_le num_blocks;
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};
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struct FINF {
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u8 magic[4];
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u32_le section_size;
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u8 font_type;
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u8 line_feed;
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u16_le alter_char_index;
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u8 default_width[3];
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u8 encoding;
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u32_le tglp_offset;
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u32_le cwdh_offset;
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u32_le cmap_offset;
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u8 height;
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u8 width;
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u8 ascent;
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u8 reserved;
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};
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struct TGLP {
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u8 magic[4];
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u32_le section_size;
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u8 cell_width;
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u8 cell_height;
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u8 baseline_position;
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u8 max_character_width;
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u32_le sheet_size;
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u16_le num_sheets;
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u16_le sheet_image_format;
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u16_le num_columns;
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u16_le num_rows;
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u16_le sheet_width;
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u16_le sheet_height;
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u32_le sheet_data_offset;
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};
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struct CMAP {
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u8 magic[4];
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u32_le section_size;
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u16_le code_begin;
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u16_le code_end;
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u16_le mapping_method;
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u16_le reserved;
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u32_le next_cmap_offset;
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};
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struct CWDH {
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u8 magic[4];
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u32_le section_size;
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u16_le start_index;
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u16_le end_index;
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u32_le next_cwdh_offset;
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};
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/**
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* Relocates the internal addresses of the BCFNT Shared Font to the new base.
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* @param shared_font SharedMemory object that contains the Shared Font
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* @param previous_address Previous address at which the offsets in the structure were based.
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* @param new_address New base for the offsets in the structure.
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*/
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void RelocateSharedFont(Kernel::SharedPtr<Kernel::SharedMemory> shared_font, VAddr previous_address, VAddr new_address);
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} // namespace BCFNT
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} // namespace APT
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} // namespace Service
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