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pl_u: Use OSS system archives if real archives don't exist

This commit is contained in:
Zach Hilman 2019-09-21 21:50:36 -04:00
parent 920742d418
commit 40284c6868
2 changed files with 48 additions and 112 deletions
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3
src/core/file_sys/system_archive/shared_font.cpp
View File

@ -23,8 +23,7 @@ VirtualFile PackBFTTF(const std::array<u8, Size>& data, const std::string& name)
std::vector<u8> bfttf(Size + sizeof(u64));
u64 offset = 0;
Service::NS::EncryptSharedFont(vec, bfttf, offset);
Service::NS::EncryptSharedFont(vec, bfttf);
return std::make_shared<VectorVfsFile>(std::move(bfttf), name);
}

115
src/core/hle/service/ns/pl_u.cpp
View File

@ -24,6 +24,7 @@
#include "core/file_sys/nca_metadata.h"
#include "core/file_sys/registered_cache.h"
#include "core/file_sys/romfs.h"
#include "core/file_sys/system_archive/system_archive.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/service/filesystem/filesystem.h"
@ -94,15 +95,16 @@ static void DecryptSharedFont(const std::vector<u32>& input, Kernel::PhysicalMem
offset += transformed_font.size() * sizeof(u32);
}
static void EncryptSharedFont(const std::vector<u8>& input, Kernel::PhysicalMemory& output,
std::size_t& offset) {
ASSERT_MSG(offset + input.size() + 8 < SHARED_FONT_MEM_SIZE, "Shared fonts exceeds 17mb!");
const u32 KEY = EXPECTED_MAGIC ^ EXPECTED_RESULT;
std::memcpy(output.data() + offset, &EXPECTED_RESULT, sizeof(u32)); // Magic header
const u32 ENC_SIZE = static_cast<u32>(input.size()) ^ KEY;
std::memcpy(output.data() + offset + sizeof(u32), &ENC_SIZE, sizeof(u32));
std::memcpy(output.data() + offset + (sizeof(u32) * 2), input.data(), input.size());
offset += input.size() + (sizeof(u32) * 2);
static void EncryptSharedFont(const std::vector<u8>& input, Kernel::PhysicalMemory& output) {
ASSERT_MSG(input.size() * sizeof(u32) < SHARED_FONT_MEM_SIZE, "Shared fonts exceeds 17mb!");
const auto key = Common::swap32(EXPECTED_RESULT ^ EXPECTED_MAGIC);
std::vector<u32> transformed_font(input.size() + 2);
transformed_font[0] = Common::swap32(EXPECTED_MAGIC);
transformed_font[1] = Common::swap32(input.size() * sizeof(u32)) ^ key;
std::transform(input.begin(), input.end(), transformed_font.begin() + 2,
[key](u32 in) { return in ^ key; });
std::memcpy(output.data(), transformed_font.data(), transformed_font.size() * sizeof(u32));
}
// Helper function to make BuildSharedFontsRawRegions a bit nicer
@ -168,24 +170,27 @@ PL_U::PL_U(Core::System& system)
// Attempt to load shared font data from disk
const auto* nand = fsc.GetSystemNANDContents();
std::size_t offset = 0;
// Rebuild shared fonts from data ncas
if (nand->HasEntry(static_cast<u64>(FontArchives::Standard),
FileSys::ContentRecordType::Data)) {
// Rebuild shared fonts from data ncas or synthesize
impl->shared_font = std::make_shared<Kernel::PhysicalMemory>(SHARED_FONT_MEM_SIZE);
for (auto font : SHARED_FONTS) {
FileSys::VirtualFile romfs;
const auto nca =
nand->GetEntry(static_cast<u64>(font.first), FileSys::ContentRecordType::Data);
if (!nca) {
LOG_ERROR(Service_NS, "Failed to find {:016X}! Skipping",
static_cast<u64>(font.first));
continue;
if (nca) {
romfs = nca->GetRomFS();
}
const auto romfs = nca->GetRomFS();
if (!romfs) {
LOG_ERROR(Service_NS, "{:016X} has no RomFS! Skipping",
romfs = FileSys::SystemArchive::SynthesizeSystemArchive(static_cast<u64>(font.first));
}
if (!romfs) {
LOG_ERROR(Service_NS, "Failed to find or synthesize {:016X}! Skipping",
static_cast<u64>(font.first));
continue;
}
const auto extracted_romfs = FileSys::ExtractRomFS(romfs);
if (!extracted_romfs) {
LOG_ERROR(Service_NS, "Failed to extract RomFS for {:016X}! Skipping",
@ -203,80 +208,12 @@ PL_U::PL_U(Core::System& system)
// We need to be BigEndian as u32s for the xor encryption
std::transform(font_data_u32.begin(), font_data_u32.end(), font_data_u32.begin(),
Common::swap32);
FontRegion region{
static_cast<u32>(offset + 8),
static_cast<u32>((font_data_u32.size() * sizeof(u32)) -
8)}; // Font offset and size do not account for the header
// Font offset and size do not account for the header
const FontRegion region{static_cast<u32>(offset + 8),
static_cast<u32>((font_data_u32.size() * sizeof(u32)) - 8)};
DecryptSharedFont(font_data_u32, *impl->shared_font, offset);
impl->shared_font_regions.push_back(region);
}
} else {
impl->shared_font = std::make_shared<Kernel::PhysicalMemory>(
SHARED_FONT_MEM_SIZE); // Shared memory needs to always be allocated and a fixed size
const std::string user_path = FileUtil::GetUserPath(FileUtil::UserPath::SysDataDir);
const std::string filepath{user_path + SHARED_FONT};
// Create path if not already created
if (!FileUtil::CreateFullPath(filepath)) {
LOG_ERROR(Service_NS, "Failed to create sharedfonts path \"{}\"!", filepath);
return;
}
bool using_ttf = false;
for (const char* font_ttf : SHARED_FONTS_TTF) {
if (FileUtil::Exists(user_path + font_ttf)) {
using_ttf = true;
FileUtil::IOFile file(user_path + font_ttf, "rb");
if (file.IsOpen()) {
std::vector<u8> ttf_bytes(file.GetSize());
file.ReadBytes<u8>(ttf_bytes.data(), ttf_bytes.size());
FontRegion region{
static_cast<u32>(offset + 8),
static_cast<u32>(ttf_bytes.size())}; // Font offset and size do not account
// for the header
EncryptSharedFont(ttf_bytes, *impl->shared_font, offset);
impl->shared_font_regions.push_back(region);
} else {
LOG_WARNING(Service_NS, "Unable to load font: {}", font_ttf);
}
} else if (using_ttf) {
LOG_WARNING(Service_NS, "Unable to find font: {}", font_ttf);
}
}
if (using_ttf)
return;
FileUtil::IOFile file(filepath, "rb");
if (file.IsOpen()) {
// Read shared font data
ASSERT(file.GetSize() == SHARED_FONT_MEM_SIZE);
file.ReadBytes(impl->shared_font->data(), impl->shared_font->size());
impl->BuildSharedFontsRawRegions(*impl->shared_font);
} else {
LOG_WARNING(Service_NS,
"Shared Font file missing. Loading open source replacement from memory");
// clang-format off
const std::vector<std::vector<u8>> open_source_shared_fonts_ttf = {
{std::begin(FontChineseSimplified), std::end(FontChineseSimplified)},
{std::begin(FontChineseTraditional), std::end(FontChineseTraditional)},
{std::begin(FontExtendedChineseSimplified), std::end(FontExtendedChineseSimplified)},
{std::begin(FontKorean), std::end(FontKorean)},
{std::begin(FontNintendoExtended), std::end(FontNintendoExtended)},
{std::begin(FontStandard), std::end(FontStandard)},
};
// clang-format on
for (const std::vector<u8>& font_ttf : open_source_shared_fonts_ttf) {
const FontRegion region{static_cast<u32>(offset + 8),
static_cast<u32>(font_ttf.size())};
EncryptSharedFont(font_ttf, *impl->shared_font, offset);
impl->shared_font_regions.push_back(region);
}
}
}
}
PL_U::~PL_U() = default;