254 lines
8.4 KiB
C
254 lines
8.4 KiB
C
/*
|
|
* bfttf.c
|
|
*
|
|
* Copyright (c) 2018, simontime.
|
|
* Copyright (c) 2020-2024, DarkMatterCore <pabloacurielz@gmail.com>.
|
|
*
|
|
* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
|
|
*
|
|
* nxdumptool is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* nxdumptool is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "nxdt_utils.h"
|
|
#include "bfttf.h"
|
|
#include "romfs.h"
|
|
#include "title.h"
|
|
|
|
/* Type definitions. */
|
|
|
|
typedef struct {
|
|
u64 title_id; ///< System title ID.
|
|
char path[64]; ///< Path to BFTTF file inside the RomFS section from the system title.
|
|
u32 size;
|
|
u8 *data;
|
|
} BfttfFontInfo;
|
|
|
|
/* Global variables. */
|
|
|
|
static Mutex g_bfttfMutex = 0;
|
|
static bool g_bfttfInterfaceInit = false;
|
|
|
|
static BfttfFontInfo g_fontInfo[] = {
|
|
{ 0x0100000000000811, "/nintendo_udsg-r_std_003.bfttf", 0, NULL }, /* FontStandard. */
|
|
{ 0x0100000000000810, "/nintendo_ext_003.bfttf", 0, NULL }, /* FontNintendoExtension. There's a secondary entry at "/nintendo_ext2_003.bfttf", but it's identical to this one. */
|
|
{ 0x0100000000000812, "/nintendo_udsg-r_ko_003.bfttf", 0, NULL }, /* FontKorean. */
|
|
{ 0x0100000000000814, "/nintendo_udsg-r_org_zh-cn_003.bfttf", 0, NULL }, /* FontChineseSimplified (1). */
|
|
{ 0x0100000000000814, "/nintendo_udsg-r_ext_zh-cn_003.bfttf", 0, NULL }, /* FontChineseSimplified (2). */
|
|
{ 0x0100000000000813, "/nintendo_udjxh-db_zh-tw_003.bfttf", 0, NULL } /* FontChineseTraditional. */
|
|
};
|
|
|
|
static const u32 g_fontInfoCount = MAX_ELEMENTS(g_fontInfo);
|
|
|
|
static const u32 g_bfttfKey = 0x06186249;
|
|
|
|
/* Function prototypes. */
|
|
|
|
static bool bfttfDecodeFont(BfttfFontInfo *font_info);
|
|
|
|
bool bfttfInitialize(void)
|
|
{
|
|
NcaContext *nca_ctx = NULL;
|
|
RomFileSystemContext romfs_ctx = {0};
|
|
bool ret = false;
|
|
|
|
SCOPED_LOCK(&g_bfttfMutex)
|
|
{
|
|
ret = g_bfttfInterfaceInit;
|
|
if (ret) break;
|
|
|
|
u32 count = 0;
|
|
u64 prev_title_id = 0;
|
|
|
|
/* Allocate memory for a temporary NCA context. */
|
|
nca_ctx = calloc(1, sizeof(NcaContext));
|
|
if (!nca_ctx)
|
|
{
|
|
LOG_MSG_ERROR("Failed to allocate memory for temporary NCA context!");
|
|
break;
|
|
}
|
|
|
|
/* Retrieve BFTTF data. */
|
|
for(u32 i = 0; i < g_fontInfoCount; i++)
|
|
{
|
|
BfttfFontInfo *font_info = &(g_fontInfo[i]);
|
|
RomFileSystemFileEntry *romfs_file_entry = NULL;
|
|
|
|
/* Check if the title ID for the current font container matches the one from the previous font container. */
|
|
/* We won't have to reinitialize both NCA and RomFS contexts if that's the case. */
|
|
if (font_info->title_id != prev_title_id)
|
|
{
|
|
TitleInfo *title_info = NULL;
|
|
|
|
/* Get title info. */
|
|
if (!(title_info = titleGetInfoFromStorageByTitleId(NcmStorageId_BuiltInSystem, font_info->title_id)))
|
|
{
|
|
LOG_MSG_ERROR("Failed to get title info for %016lX!", font_info->title_id);
|
|
continue;
|
|
}
|
|
|
|
/* Initialize NCA context. */
|
|
/* NCA contexts don't need to be freed beforehand. */
|
|
/* Don't allow invalid NCA signatures. */
|
|
bool nca_ctx_init = (ncaInitializeContext(nca_ctx, NcmStorageId_BuiltInSystem, 0, &(title_info->meta_key), \
|
|
titleGetContentInfoByTypeAndIdOffset(title_info, NcmContentType_Data, 0), NULL) && nca_ctx->valid_main_signature);
|
|
|
|
/* Free title info. */
|
|
titleFreeTitleInfo(&title_info);
|
|
|
|
/* Check if NCA context initialization succeeded. */
|
|
if (!nca_ctx_init)
|
|
{
|
|
LOG_MSG_ERROR("Failed to initialize Data NCA context for %016lX!", font_info->title_id);
|
|
continue;
|
|
}
|
|
|
|
/* Initialize RomFS context. */
|
|
/* This will also free a previous RomFS context, if available. */
|
|
if (!romfsInitializeContext(&romfs_ctx, &(nca_ctx->fs_ctx[0]), NULL))
|
|
{
|
|
LOG_MSG_ERROR("Failed to initialize RomFS context for Data NCA from %016lX!", font_info->title_id);
|
|
continue;
|
|
}
|
|
|
|
/* Update previous title ID. */
|
|
prev_title_id = font_info->title_id;
|
|
}
|
|
|
|
/* Get RomFS file entry. */
|
|
if (!(romfs_file_entry = romfsGetFileEntryByPath(&romfs_ctx, font_info->path)))
|
|
{
|
|
LOG_MSG_ERROR("Failed to retrieve RomFS file entry in %016lX!", font_info->title_id);
|
|
continue;
|
|
}
|
|
|
|
/* Check file size. */
|
|
if (!romfs_file_entry->size)
|
|
{
|
|
LOG_MSG_ERROR("File size for \"%s\" in %016lX is zero!", font_info->path, font_info->title_id);
|
|
continue;
|
|
}
|
|
|
|
/* Allocate memory for BFTTF data. */
|
|
if (!(font_info->data = malloc(romfs_file_entry->size)))
|
|
{
|
|
LOG_MSG_ERROR("Failed to allocate 0x%lX bytes for \"%s\" in %016lX!", romfs_file_entry->size, font_info->path, font_info->title_id);
|
|
continue;
|
|
}
|
|
|
|
/* Read BFTFF data. */
|
|
if (!romfsReadFileEntryData(&romfs_ctx, romfs_file_entry, font_info->data, romfs_file_entry->size, 0))
|
|
{
|
|
LOG_MSG_ERROR("Failed to read 0x%lX bytes long \"%s\" in %016lX!", romfs_file_entry->size, font_info->path, font_info->title_id);
|
|
free(font_info->data);
|
|
font_info->data = NULL;
|
|
continue;
|
|
}
|
|
|
|
/* Update BFTTF size. */
|
|
font_info->size = (u32)romfs_file_entry->size;
|
|
|
|
/* Decode BFTTF data. */
|
|
if (!bfttfDecodeFont(font_info))
|
|
{
|
|
LOG_MSG_ERROR("Failed to decode 0x%lX bytes long \"%s\" in %016lX!", romfs_file_entry->size, font_info->path, font_info->title_id);
|
|
free(font_info->data);
|
|
font_info->data = NULL;
|
|
font_info->size = 0;
|
|
continue;
|
|
}
|
|
|
|
/* Increase retrieved BFTTF count. */
|
|
count++;
|
|
}
|
|
|
|
/* Update flags. */
|
|
ret = g_bfttfInterfaceInit = (count > 0);
|
|
if (!ret) LOG_MSG_ERROR("No BFTTF fonts retrieved!");
|
|
}
|
|
|
|
romfsFreeContext(&romfs_ctx);
|
|
|
|
if (nca_ctx) free(nca_ctx);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void bfttfExit(void)
|
|
{
|
|
SCOPED_LOCK(&g_bfttfMutex)
|
|
{
|
|
/* Free BFTTF data. */
|
|
for(u32 i = 0; i < g_fontInfoCount; i++)
|
|
{
|
|
BfttfFontInfo *font_info = &(g_fontInfo[i]);
|
|
|
|
font_info->size = 0;
|
|
|
|
if (font_info->data)
|
|
{
|
|
free(font_info->data);
|
|
font_info->data = NULL;
|
|
}
|
|
}
|
|
|
|
g_bfttfInterfaceInit = false;
|
|
}
|
|
}
|
|
|
|
bool bfttfGetFontByType(BfttfFontData *font_data, u8 font_type)
|
|
{
|
|
if (!font_data || font_type >= BfttfFontType_Count)
|
|
{
|
|
LOG_MSG_ERROR("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
bool ret = false;
|
|
|
|
SCOPED_LOCK(&g_bfttfMutex)
|
|
{
|
|
BfttfFontInfo *font_info = &(g_fontInfo[font_type]);
|
|
if (font_info->size <= 8 || !font_info->data)
|
|
{
|
|
LOG_MSG_ERROR("BFTTF font data unavailable for type 0x%02X!", font_type);
|
|
break;
|
|
}
|
|
|
|
font_data->type = font_type;
|
|
font_data->size = (font_info->size - 8);
|
|
font_data->address = (font_info->data + 8);
|
|
|
|
ret = true;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static bool bfttfDecodeFont(BfttfFontInfo *font_info)
|
|
{
|
|
if (!font_info || font_info->size <= 8 || !IS_ALIGNED(font_info->size, 4) || !font_info->data)
|
|
{
|
|
LOG_MSG_ERROR("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
for(u32 i = 8; i < font_info->size; i += 4)
|
|
{
|
|
u32 *ptr = (u32*)(font_info->data + i);
|
|
*ptr = (*ptr ^ g_bfttfKey);
|
|
}
|
|
|
|
return true;
|
|
}
|