C++ file::write方法代码示例

inline void Write64(const fs::file& f, const be_t<u64> data)
{
	f.write(&data, sizeof(data));
}

__forceinline void Write32LE(const fs::file& f, const u32 data)
{
	f.write(&data, sizeof(data));
}

SettingsDialog::SettingsDialog(wxWindow* parent)
	: wxDialog(parent, wxID_ANY, "Settings", wxDefaultPosition)
{
	// Load default config
	loaded = YAML::Load(g_cfg_defaults);

	// Incrementally load config.yml
	const fs::file config(fs::get_config_dir() + "/config.yml", fs::read + fs::write + fs::create);
	loaded += YAML::Load(config.to_string());

	std::vector<std::unique_ptr<cfg_adapter>> pads;

	static const u32 width = 458;
	static const u32 height = 400;

	// Settings panels
	wxNotebook* nb_config = new wxNotebook(this, wxID_ANY, wxPoint(6, 6), wxSize(width, height));
	wxPanel* p_system = new wxPanel(nb_config, wxID_ANY);
	wxPanel* p_core = new wxPanel(nb_config, wxID_ANY);
	wxPanel* p_graphics = new wxPanel(nb_config, wxID_ANY);
	wxPanel* p_audio = new wxPanel(nb_config, wxID_ANY);
	wxPanel* p_io = new wxPanel(nb_config, wxID_ANY);
	wxPanel* p_misc = new wxPanel(nb_config, wxID_ANY);
	wxPanel* p_networking = new wxPanel(nb_config, wxID_ANY);

	nb_config->AddPage(p_core, "Core");
	nb_config->AddPage(p_graphics, "Graphics");
	nb_config->AddPage(p_audio, "Audio");
	nb_config->AddPage(p_io, "Input / Output");
	nb_config->AddPage(p_misc, "Misc");
	nb_config->AddPage(p_networking, "Networking");
	nb_config->AddPage(p_system, "System");

	wxBoxSizer* s_subpanel_core = new wxBoxSizer(wxHORIZONTAL);
	wxBoxSizer* s_subpanel_core1 = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer* s_subpanel_core2 = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer* s_subpanel_graphics = new wxBoxSizer(wxHORIZONTAL);
	wxBoxSizer* s_subpanel_graphics1 = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer* s_subpanel_graphics2 = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer* s_subpanel_audio = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer* s_subpanel_io = new wxBoxSizer(wxHORIZONTAL);
	wxBoxSizer* s_subpanel_io1 = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer* s_subpanel_io2 = new wxBoxSizer(wxVERTICAL);

	wxBoxSizer* s_subpanel_system = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer* s_subpanel_misc = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer* s_subpanel_networking = new wxBoxSizer(wxVERTICAL);

	// Core
	wxStaticBoxSizer* s_round_core_lle = new wxStaticBoxSizer(wxVERTICAL, p_core, "Load libraries");
	chbox_list_core_lle = new wxCheckListBox(p_core, wxID_ANY, wxDefaultPosition, wxDefaultSize, {}, wxLB_EXTENDED);
	chbox_list_core_lle->Bind(wxEVT_CHECKLISTBOX, &SettingsDialog::OnModuleListItemToggled, this);
	wxTextCtrl* s_module_search_box = new wxTextCtrl(p_core, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, {});
	s_module_search_box->Bind(wxEVT_TEXT, &SettingsDialog::OnSearchBoxTextChanged, this);

	// Graphics
	wxStaticBoxSizer* s_round_gs_render = new wxStaticBoxSizer(wxVERTICAL, p_graphics, "Render");
	wxStaticBoxSizer* s_round_gs_d3d_adapter = new wxStaticBoxSizer(wxVERTICAL, p_graphics, "D3D Adapter");
	wxStaticBoxSizer* s_round_gs_res = new wxStaticBoxSizer(wxVERTICAL, p_graphics, "Resolution");
	wxStaticBoxSizer* s_round_gs_aspect = new wxStaticBoxSizer(wxVERTICAL, p_graphics, "Aspect ratio");
	wxStaticBoxSizer* s_round_gs_frame_limit = new wxStaticBoxSizer(wxVERTICAL, p_graphics, "Frame limit");

	// Input / Output
	wxStaticBoxSizer* s_round_io_pad_handler = new wxStaticBoxSizer(wxVERTICAL, p_io, "Pad Handler");
	wxStaticBoxSizer* s_round_io_keyboard_handler = new wxStaticBoxSizer(wxVERTICAL, p_io, "Keyboard Handler");
	wxStaticBoxSizer* s_round_io_mouse_handler = new wxStaticBoxSizer(wxVERTICAL, p_io, "Mouse Handler");
	wxStaticBoxSizer* s_round_io_camera = new wxStaticBoxSizer(wxVERTICAL, p_io, "Camera");
	wxStaticBoxSizer* s_round_io_camera_type = new wxStaticBoxSizer(wxVERTICAL, p_io, "Camera type");

	// Audio
	wxStaticBoxSizer* s_round_audio_out = new wxStaticBoxSizer(wxVERTICAL, p_audio, "Audio Out");

	// Networking
	wxStaticBoxSizer* s_round_net_status = new wxStaticBoxSizer(wxVERTICAL, p_networking, "Connection status");

	// System
	wxStaticBoxSizer* s_round_sys_lang = new wxStaticBoxSizer(wxVERTICAL, p_system, "Language");


	wxRadioBox* rbox_ppu_decoder;
	wxRadioBox* rbox_spu_decoder;
	wxComboBox* cbox_gs_render = new wxComboBox(p_graphics, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_gs_d3d_adapter = new wxComboBox(p_graphics, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_gs_resolution = new wxComboBox(p_graphics, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_gs_aspect = new wxComboBox(p_graphics, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_gs_frame_limit = new wxComboBox(p_graphics, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_pad_handler = new wxComboBox(p_io, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);;
	wxComboBox* cbox_keyboard_handler = new wxComboBox(p_io, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_mouse_handler = new wxComboBox(p_io, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_camera = new wxComboBox(p_io, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_camera_type = new wxComboBox(p_io, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_audio_out = new wxComboBox(p_audio, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(150, -1), 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_net_status = new wxComboBox(p_networking, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, NULL, wxCB_READONLY);
	wxComboBox* cbox_sys_lang = new wxComboBox(p_system, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, NULL, wxCB_READONLY);

	wxCheckBox* chbox_core_hook_stfunc = new wxCheckBox(p_core, wxID_ANY, "Hook static functions");
	wxCheckBox* chbox_core_load_liblv2 = new wxCheckBox(p_core, wxID_ANY, "Load liblv2.sprx only");
	wxCheckBox* chbox_vfs_enable_host_root = new wxCheckBox(p_system, wxID_ANY, "Enable /host_root/");
	wxCheckBox* chbox_gs_log_prog = new wxCheckBox(p_graphics, wxID_ANY, "Log shader programs");
	wxCheckBox* chbox_gs_dump_depth = new wxCheckBox(p_graphics, wxID_ANY, "Write Depth Buffer");
//.........这里部分代码省略.........

	void save_object(const fs::file& stream, const psf::registry& psf)
	{
		std::vector<def_table_t> indices; indices.reserve(psf.size());

		// Generate indices and calculate key table length
		std::size_t key_offset = 0, data_offset = 0;

		for (const auto& entry : psf)
		{
			def_table_t index;
			index.key_off = ::narrow<u32>(key_offset);
			index.param_fmt = entry.second.type();
			index.param_len = entry.second.size();
			index.param_max = entry.second.max();
			index.data_off = ::narrow<u32>(data_offset);

			// Update offsets:
			key_offset += ::narrow<u32>(entry.first.size() + 1); // key size
			data_offset += index.param_max;

			indices.push_back(index);
		}

		// Align next section (data) offset
		key_offset = ::align(key_offset, 4);

		// Generate header
		header_t header;
		header.magic = "\0PSF"_u32;
		header.version = 0x101;
		header.off_key_table = ::narrow<u32>(sizeof(header_t) + sizeof(def_table_t) * psf.size());
		header.off_data_table = ::narrow<u32>(header.off_key_table + key_offset);
		header.entries_num = ::narrow<u32>(psf.size());

		// Save header and indices
		stream.write(header);
		stream.write(indices);

		// Save key table
		for (const auto& entry : psf)
		{
			stream.write(entry.first);
			stream.write('\0');
		}

		// Skip padding
		stream.trunc(stream.seek(header.off_data_table));

		// Save data
		for (const auto& entry : psf)
		{
			const auto fmt = entry.second.type();
			const u32 max = entry.second.max();

			if (fmt == format::integer && max == sizeof(u32))
			{
				const le_t<u32> value = entry.second.as_integer();
				stream.write(value);
			}
			else if (fmt == format::string || fmt == format::array)
			{
				const std::string& value = entry.second.as_string();
				const std::size_t size = std::min<std::size_t>(max, value.size());

				if (value.size() + (fmt == format::string) > max)
				{
					// TODO: check real limitations of PSF format
					LOG_ERROR(LOADER, "Entry value shrinkage (key='%s', value='%s', size=0x%zx, max=0x%x)", entry.first, value, size, max);
				}

				stream.write(value);
				stream.trunc(stream.seek(max - size, fs::seek_cur)); // Skip up to max_size
			}
			else
			{
				fmt::throw_exception("Invalid entry format (key='%s', fmt=0x%x)" HERE, entry.first, fmt);
			}
		}
	}