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fusee_cpp: improve/fix file-based emummc

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Michael Scire 2021-09-05 00:52:24 -07:00 committed by SciresM
parent 2247f97cdc
commit 320f0bbcfd
2 changed files with 21 additions and 16 deletions
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2
fusee_cpp/program/source/fs/fusee_fs_api.cpp
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@ -23,7 +23,7 @@ namespace ams::fs {
namespace {
constexpr size_t MaxFiles = 8;
constexpr size_t MaxFiles = 8 + 64;
constexpr size_t MaxDirectories = 2;
constinit bool g_is_sd_mounted = false;

35
fusee_cpp/program/source/fusee_emummc.cpp
View file

@ -99,33 +99,38 @@ namespace ams::nxboot {
class EmummcFileStorage : public fs::IStorage {
private:
s64 m_file_size;
fs::FileHandle m_handle;
int m_id;
fs::FileHandle m_handles[64];
bool m_open[64];
int m_file_path_ofs;
private:
void SwitchFile(int id) {
if (m_id != id) {
fs::CloseFile(m_handle);
void EnsureFile(int id) {
if (!m_open[id]) {
/* Update path. */
g_emummc_path[m_file_path_ofs + 1] = '0' + (id % 10);
g_emummc_path[m_file_path_ofs + 0] = '0' + (id / 10);
/* Open new file. */
const Result result = fs::OpenFile(std::addressof(m_handle), g_emummc_path, fs::OpenMode_Read);
const Result result = fs::OpenFile(m_handles + id, g_emummc_path, fs::OpenMode_Read);
if (R_FAILED(result)) {
ShowFatalError("Failed to open emummc user %02d file: 0x%08" PRIx32 "!\n", id, result.GetValue());
}
m_id = id;
m_open[id] = true;
}
}
public:
EmummcFileStorage(fs::FileHandle user00, int ofs) : m_handle(user00), m_id(0), m_file_path_ofs(ofs) {
const Result result = fs::GetFileSize(std::addressof(m_file_size), m_handle);
EmummcFileStorage(fs::FileHandle user00, int ofs) : m_file_path_ofs(ofs) {
const Result result = fs::GetFileSize(std::addressof(m_file_size), user00);
if (R_FAILED(result)) {
ShowFatalError("Failed to get emummc file size: 0x%08" PRIx32 "!\n", result.GetValue());
}
for (size_t i = 0; i < util::size(m_handles); ++i) {
m_open[i] = false;
}
m_handles[0] = user00;
m_open[0] = true;
}
virtual Result Read(s64 offset, void *buffer, size_t size) override {
@ -135,12 +140,12 @@ namespace ams::nxboot {
u8 *cur_dst = static_cast<u8 *>(buffer);
for (/* ... */; size > 0; ++file) {
/* Switch to the current file. */
SwitchFile(file);
/* Ensure the current file is open. */
EnsureFile(file);
/* Perform the current read. */
const size_t cur_size = std::min<size_t>(m_file_size - subofs, size);
R_TRY(fs::ReadFile(m_handle, subofs, cur_dst, cur_size));
R_TRY(fs::ReadFile(m_handles[file], subofs, cur_dst, cur_size));
/* Advance. */
cur_dst += cur_size;
@ -152,7 +157,7 @@ namespace ams::nxboot {
}
virtual Result Flush() override {
return fs::FlushFile(m_handle);
return fs::ResultUnsupportedOperation();
}
virtual Result GetSize(s64 *out) override {
@ -360,7 +365,7 @@ namespace ams::nxboot {
/* Append emmc. */
std::memcpy(g_emummc_path + len, "/eMMC", 6);
len += 6;
len += 5;
/* Open boot0. */
fs::FileHandle boot0_file;