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fusee_cpp: improve/fix file-based emummc
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parent
2247f97cdc
commit
320f0bbcfd
2 changed files with 21 additions and 16 deletions
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@ -23,7 +23,7 @@ namespace ams::fs {
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namespace {
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constexpr size_t MaxFiles = 8;
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constexpr size_t MaxFiles = 8 + 64;
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constexpr size_t MaxDirectories = 2;
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constinit bool g_is_sd_mounted = false;
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@ -99,33 +99,38 @@ namespace ams::nxboot {
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class EmummcFileStorage : public fs::IStorage {
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private:
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s64 m_file_size;
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fs::FileHandle m_handle;
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int m_id;
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fs::FileHandle m_handles[64];
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bool m_open[64];
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int m_file_path_ofs;
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private:
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void SwitchFile(int id) {
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if (m_id != id) {
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fs::CloseFile(m_handle);
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void EnsureFile(int id) {
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if (!m_open[id]) {
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/* Update path. */
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g_emummc_path[m_file_path_ofs + 1] = '0' + (id % 10);
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g_emummc_path[m_file_path_ofs + 0] = '0' + (id / 10);
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/* Open new file. */
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const Result result = fs::OpenFile(std::addressof(m_handle), g_emummc_path, fs::OpenMode_Read);
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const Result result = fs::OpenFile(m_handles + id, g_emummc_path, fs::OpenMode_Read);
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if (R_FAILED(result)) {
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ShowFatalError("Failed to open emummc user %02d file: 0x%08" PRIx32 "!\n", id, result.GetValue());
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}
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m_id = id;
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m_open[id] = true;
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}
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}
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public:
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EmummcFileStorage(fs::FileHandle user00, int ofs) : m_handle(user00), m_id(0), m_file_path_ofs(ofs) {
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const Result result = fs::GetFileSize(std::addressof(m_file_size), m_handle);
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EmummcFileStorage(fs::FileHandle user00, int ofs) : m_file_path_ofs(ofs) {
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const Result result = fs::GetFileSize(std::addressof(m_file_size), user00);
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if (R_FAILED(result)) {
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ShowFatalError("Failed to get emummc file size: 0x%08" PRIx32 "!\n", result.GetValue());
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}
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for (size_t i = 0; i < util::size(m_handles); ++i) {
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m_open[i] = false;
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}
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m_handles[0] = user00;
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m_open[0] = true;
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}
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virtual Result Read(s64 offset, void *buffer, size_t size) override {
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@ -135,12 +140,12 @@ namespace ams::nxboot {
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u8 *cur_dst = static_cast<u8 *>(buffer);
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for (/* ... */; size > 0; ++file) {
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/* Switch to the current file. */
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SwitchFile(file);
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/* Ensure the current file is open. */
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EnsureFile(file);
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/* Perform the current read. */
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const size_t cur_size = std::min<size_t>(m_file_size - subofs, size);
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R_TRY(fs::ReadFile(m_handle, subofs, cur_dst, cur_size));
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R_TRY(fs::ReadFile(m_handles[file], subofs, cur_dst, cur_size));
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/* Advance. */
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cur_dst += cur_size;
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@ -152,7 +157,7 @@ namespace ams::nxboot {
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}
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virtual Result Flush() override {
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return fs::FlushFile(m_handle);
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return fs::ResultUnsupportedOperation();
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}
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virtual Result GetSize(s64 *out) override {
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@ -360,7 +365,7 @@ namespace ams::nxboot {
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/* Append emmc. */
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std::memcpy(g_emummc_path + len, "/eMMC", 6);
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len += 6;
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len += 5;
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/* Open boot0. */
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fs::FileHandle boot0_file;
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