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// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic,Luca Bruno
/***************************************************************************
luaengine.c
Controls execution of the core MAME system.
***************************************************************************/
#include <thread>
#include <lua.hpp>
#include "emu.h"
#include "mame.h"
#include "debugger.h"
#include "debug/debugcon.h"
#include "debug/debugcpu.h"
#include "debug/textbuf.h"
#include "drivenum.h"
#include "emuopts.h"
#include "ui/ui.h"
#include "ui/pluginopt.h"
#include "luaengine.h"
#include "natkeyboard.h"
#include "uiinput.h"
#include "pluginopts.h"
#include "softlist.h"
#ifdef __clang__
#pragma clang diagnostic ignored "-Wshift-count-overflow"
#endif
#if defined(_MSC_VER)
#pragma warning(disable:4503)
#endif
//**************************************************************************
// LUA ENGINE
//**************************************************************************
extern "C" {
int luaopen_zlib(lua_State *L);
int luaopen_lfs(lua_State *L);
int luaopen_linenoise(lua_State *L);
int luaopen_lsqlite3(lua_State *L);
}
namespace sol
{
class buffer
{
public:
// sol does lua_settop(0), save userdata buffer in registry if necessary
buffer(int size, lua_State *L)
{
ptr = luaL_buffinitsize(L, &buff, size);
len = size;
if(buff.b != buff.initb)
{
lua_pushvalue(L, -1);
lua_setfield(L, LUA_REGISTRYINDEX, "sol::buffer_temp");
}
}
~buffer()
{
lua_State *L = buff.L;
if(lua_getfield(L, LUA_REGISTRYINDEX, "sol::buffer_temp") != LUA_TNIL)
{
lua_pushnil(L);
lua_setfield(L, LUA_REGISTRYINDEX, "sol::buffer_temp");
}
else
lua_pop(L, -1);
luaL_pushresultsize(&buff, len);
}
void set_len(int size) { len = size; }
int get_len() { return len; }
char *get_ptr() { return ptr; }
private:
luaL_Buffer buff;
int len;
char *ptr;
};
template<>
struct is_container<core_options> : std::false_type {}; // don't convert core_optons to a table directly
namespace stack
{
template <>
struct pusher<osd_file::error>
{
static int push(lua_State *L, osd_file::error error)
{
const char *strerror;
switch(error)
{
case osd_file::error::NONE:
return stack::push(L, sol::nil);
case osd_file::error::FAILURE:
strerror = "failure";
break;
case osd_file::error::OUT_OF_MEMORY:
strerror = "out_of_memory";
break;
case osd_file::error::NOT_FOUND:
strerror = "not_found";
break;
case osd_file::error::ACCESS_DENIED:
strerror = "access_denied";
break;
case osd_file::error::ALREADY_OPEN:
strerror = "already_open";
break;
case osd_file::error::TOO_MANY_FILES:
strerror = "too_many_files";
break;
case osd_file::error::INVALID_DATA:
strerror = "invalid_data";
break;
case osd_file::error::INVALID_ACCESS:
strerror = "invalid_access";
break;
default:
strerror = "unknown_error";
break;
}
return stack::push(L, strerror);
}
};
template <>
struct checker<sol::buffer *>
{
template <typename Handler>
static bool check (lua_State* L, int index, Handler&& handler, record& tracking)
{
return stack::check<int>(L, index, handler);
}
};
template <>
struct getter<sol::buffer *>
{
static sol::buffer *get(lua_State* L, int index, record& tracking)
{
return new sol::buffer(stack::get<int>(L, index), L);
}
};
template <>
struct checker<input_item_class>
{
template <typename Handler>
static bool check (lua_State* L, int index, Handler&& handler, record& tracking)
{
return stack::check<const std::string &>(L, index, handler);
}
};
template <>
struct getter<input_item_class>
{
static input_item_class get(lua_State* L, int index, record& tracking)
{
const std::string item_class = stack::get<const std::string &>(L, index);
if(item_class == "switch")
return ITEM_CLASS_SWITCH;
else if(item_class == "absolute" || item_class == "abs")
return ITEM_CLASS_ABSOLUTE;
else if(item_class == "relative" || item_class == "rel")
return ITEM_CLASS_RELATIVE;
else if(item_class == "maximum" || item_class == "max")
return ITEM_CLASS_MAXIMUM;
else
return ITEM_CLASS_INVALID;
}
};
template <>
struct pusher<sol::buffer *>
{
static int push(lua_State* L, sol::buffer *buff)
{
delete buff;
return 1;
}
};
template <>
struct pusher<map_handler_type>
{
static int push(lua_State *L, map_handler_type type)
{
const char *typestr;
switch(type)
{
case AMH_NONE:
typestr = "none";
break;
case AMH_RAM:
typestr = "ram";
break;
case AMH_ROM:
typestr = "rom";
break;
case AMH_NOP:
typestr = "nop";
break;
case AMH_UNMAP:
typestr = "unmap";
break;
case AMH_DEVICE_DELEGATE:
case AMH_DEVICE_DELEGATE_M:
case AMH_DEVICE_DELEGATE_S:
case AMH_DEVICE_DELEGATE_SM:
case AMH_DEVICE_DELEGATE_MO:
case AMH_DEVICE_DELEGATE_SMO:
typestr = "delegate";
break;
case AMH_PORT:
typestr = "port";
break;
case AMH_BANK:
typestr = "bank";
break;
case AMH_DEVICE_SUBMAP:
typestr = "submap";
break;
default:
typestr = "unknown";
break;
}
return stack::push(L, typestr);
}
};
}
}
//-------------------------------------------------
// mem_read - templated memory readers for <sign>,<size>
// -> manager:machine().devices[":maincpu"].spaces["program"]:read_i8(0xC000)
//-------------------------------------------------
template <typename T>
T lua_engine::addr_space::mem_read(offs_t address)
{
T mem_content = 0;
switch(sizeof(mem_content) * 8) {
case 8:
mem_content = space.read_byte(address);
break;
case 16:
if (WORD_ALIGNED(address)) {
mem_content = space.read_word(address);
} else {
mem_content = space.read_word_unaligned(address);
}
break;
case 32:
if (DWORD_ALIGNED(address)) {
mem_content = space.read_dword(address);
} else {
mem_content = space.read_dword_unaligned(address);
}
break;
case 64:
if (QWORD_ALIGNED(address)) {
mem_content = space.read_qword(address);
} else {
mem_content = space.read_qword_unaligned(address);
}
break;
default:
break;
}
return mem_content;
}
//-------------------------------------------------
// mem_write - templated memory writer for <sign>,<size>
// -> manager:machine().devices[":maincpu"].spaces["program"]:write_u16(0xC000, 0xF00D)
//-------------------------------------------------
template <typename T>
void lua_engine::addr_space::mem_write(offs_t address, T val)
{
switch(sizeof(val) * 8) {
case 8:
space.write_byte(address, val);
break;
case 16:
if (WORD_ALIGNED(address)) {
space.write_word(address, val);
} else {
space.write_word_unaligned(address, val);
}
break;
case 32:
if (DWORD_ALIGNED(address)) {
space.write_dword(address, val);
} else {
space.write_dword_unaligned(address, val);
}
break;
case 64:
if (QWORD_ALIGNED(address)) {
space.write_qword(address, val);
} else {
space.write_qword_unaligned(address, val);
}
break;
default:
break;
}
}
//-------------------------------------------------
// log_mem_read - templated logical memory readers for <sign>,<size>
// -> manager:machine().devices[":maincpu"].spaces["program"]:read_log_i8(0xC000)
//-------------------------------------------------
template <typename T>
T lua_engine::addr_space::log_mem_read(offs_t address)
{
T mem_content = 0;
if(!dev.translate(space.spacenum(), TRANSLATE_READ_DEBUG, address))
return 0;
switch(sizeof(mem_content) * 8) {
case 8:
mem_content = space.read_byte(address);
break;
case 16:
if (WORD_ALIGNED(address)) {
mem_content = space.read_word(address);
} else {
mem_content = space.read_word_unaligned(address);
}
break;
case 32:
if (DWORD_ALIGNED(address)) {
mem_content = space.read_dword(address);
} else {
mem_content = space.read_dword_unaligned(address);
}
break;
case 64:
if (QWORD_ALIGNED(address)) {
mem_content = space.read_qword(address);
} else {
mem_content = space.read_qword_unaligned(address);
}
break;
default:
break;
}
return mem_content;
}
//-------------------------------------------------
// log_mem_write - templated logical memory writer for <sign>,<size>
// -> manager:machine().devices[":maincpu"].spaces["program"]:write_log_u16(0xC000, 0xF00D)
//-------------------------------------------------
template <typename T>
void lua_engine::addr_space::log_mem_write(offs_t address, T val)
{
if(!dev.translate(space.spacenum(), TRANSLATE_WRITE_DEBUG, address))
return;
switch(sizeof(val) * 8) {
case 8:
space.write_byte(address, val);
break;
case 16:
if (WORD_ALIGNED(address)) {
space.write_word(address, val);
} else {
space.write_word_unaligned(address, val);
}
break;
case 32:
if (DWORD_ALIGNED(address)) {
space.write_dword(address, val);
} else {
space.write_dword_unaligned(address, val);
}
break;
case 64:
if (QWORD_ALIGNED(address)) {
space.write_qword(address, val);
} else {
space.write_qword_unaligned(address, val);
}
break;
default:
break;
}
}
//-------------------------------------------------
// mem_direct_read - templated direct memory readers for <sign>,<size>
// -> manager:machine().devices[":maincpu"].spaces["program"]:read_direct_i8(0xC000)
//-------------------------------------------------
template <typename T>
T lua_engine::addr_space::direct_mem_read(offs_t address)
{
T mem_content = 0;
offs_t lowmask = space.data_width() / 8 - 1;
for(int i = 0; i < sizeof(T); i++)
{
int addr = space.endianness() == ENDIANNESS_LITTLE ? address + sizeof(T) - 1 - i : address + i;
uint8_t *base = (uint8_t *)space.get_read_ptr(addr & ~lowmask);
if(!base)
continue;
mem_content <<= 8;
if(space.endianness() == ENDIANNESS_BIG)
mem_content |= base[BYTE8_XOR_BE(addr) & lowmask];
else
mem_content |= base[BYTE8_XOR_LE(addr) & lowmask];
}
return mem_content;
}
//-------------------------------------------------
// mem_direct_write - templated memory writer for <sign>,<size>
// -> manager:machine().devices[":maincpu"].spaces["program"]:write_direct_u16(0xC000, 0xF00D)
//-------------------------------------------------
template <typename T>
void lua_engine::addr_space::direct_mem_write(offs_t address, T val)
{
offs_t lowmask = space.data_width() / 8 - 1;
for(int i = 0; i < sizeof(T); i++)
{
int addr = space.endianness() == ENDIANNESS_BIG ? address + sizeof(T) - 1 - i : address + i;
uint8_t *base = (uint8_t *)space.get_read_ptr(addr & ~lowmask);
if(!base)
continue;
if(space.endianness() == ENDIANNESS_BIG)
base[BYTE8_XOR_BE(addr) & lowmask] = val & 0xff;
else
base[BYTE8_XOR_LE(addr) & lowmask] = val & 0xff;
val >>= 8;
}
}
//-------------------------------------------------
// region_read - templated region readers for <sign>,<size>
// -> manager:machine():memory().regions[":maincpu"]:read_i8(0xC000)
//-------------------------------------------------
template <typename T>
T lua_engine::region_read(memory_region &region, offs_t address)
{
T mem_content = 0;
offs_t lowmask = region.bytewidth() - 1;
for(int i = 0; i < sizeof(T); i++)
{
int addr = region.endianness() == ENDIANNESS_LITTLE ? address + sizeof(T) - 1 - i : address + i;
if(addr >= region.bytes())
continue;
mem_content <<= 8;
if(region.endianness() == ENDIANNESS_BIG)
mem_content |= region.as_u8((BYTE8_XOR_BE(addr) & lowmask) | (addr & ~lowmask));
else
mem_content |= region.as_u8((BYTE8_XOR_LE(addr) & lowmask) | (addr & ~lowmask));
}
return mem_content;
}
//-------------------------------------------------
// region_write - templated region writer for <sign>,<size>
// -> manager:machine():memory().regions[":maincpu"]:write_u16(0xC000, 0xF00D)
//-------------------------------------------------
template <typename T>
void lua_engine::region_write(memory_region &region, offs_t address, T val)
{
offs_t lowmask = region.bytewidth() - 1;
for(int i = 0; i < sizeof(T); i++)
{
int addr = region.endianness() == ENDIANNESS_BIG ? address + sizeof(T) - 1 - i : address + i;
if(addr >= region.bytes())
continue;
if(region.endianness() == ENDIANNESS_BIG)
region.base()[(BYTE8_XOR_BE(addr) & lowmask) | (addr & ~lowmask)] = val & 0xff;
else
region.base()[(BYTE8_XOR_LE(addr) & lowmask) | (addr & ~lowmask)] = val & 0xff;
val >>= 8;
}
}
//-------------------------------------------------
// share_read - templated share readers for <sign>,<size>
// -> manager:machine():memory().shares[":maincpu"]:read_i8(0xC000)
//-------------------------------------------------
template <typename T>
T lua_engine::share_read(memory_share &share, offs_t address)
{
T mem_content = 0;
offs_t lowmask = share.bytewidth() - 1;
uint8_t* ptr = (uint8_t*)share.ptr();
for(int i = 0; i < sizeof(T); i++)
{
int addr = share.endianness() == ENDIANNESS_LITTLE ? address + sizeof(T) - 1 - i : address + i;
if(addr >= share.bytes())
continue;
mem_content <<= 8;
if(share.endianness() == ENDIANNESS_BIG)
mem_content |= ptr[(BYTE8_XOR_BE(addr) & lowmask) | (addr & ~lowmask)];
else
mem_content |= ptr[(BYTE8_XOR_LE(addr) & lowmask) | (addr & ~lowmask)];
}
return mem_content;
}
//-------------------------------------------------
// share_write - templated share writer for <sign>,<size>
// -> manager:machine():memory().shares[":maincpu"]:write_u16(0xC000, 0xF00D)
//-------------------------------------------------
template <typename T>
void lua_engine::share_write(memory_share &share, offs_t address, T val)
{
offs_t lowmask = share.bytewidth() - 1;
uint8_t* ptr = (uint8_t*)share.ptr();
for(int i = 0; i < sizeof(T); i++)
{
int addr = share.endianness() == ENDIANNESS_BIG ? address + sizeof(T) - 1 - i : address + i;
if(addr >= share.bytes())
continue;
if(share.endianness() == ENDIANNESS_BIG)
ptr[(BYTE8_XOR_BE(addr) & lowmask) | (addr & ~lowmask)] = val & 0xff;
else
ptr[(BYTE8_XOR_LE(addr) & lowmask) | (addr & ~lowmask)] = val & 0xff;
val >>= 8;
}
}
//-------------------------------------------------
// lua_engine - constructor
//-------------------------------------------------
lua_engine::lua_engine()
{
m_machine = nullptr;
m_lua_state = luaL_newstate(); /* create state */
m_sol_state = std::make_unique<sol::state_view>(m_lua_state); // create sol view
luaL_checkversion(m_lua_state);
lua_gc(m_lua_state, LUA_GCSTOP, 0); /* stop collector during initialization */
sol().open_libraries();
// Get package.preload so we can store builtins in it.
sol()["package"]["preload"]["zlib"] = &luaopen_zlib;
sol()["package"]["preload"]["lfs"] = &luaopen_lfs;
sol()["package"]["preload"]["linenoise"] = &luaopen_linenoise;
sol()["package"]["preload"]["lsqlite3"] = &luaopen_lsqlite3;
lua_gc(m_lua_state, LUA_GCRESTART, 0);
}
//-------------------------------------------------
// ~lua_engine - destructor
//-------------------------------------------------
lua_engine::~lua_engine()
{
close();
}
sol::object lua_engine::call_plugin(const std::string &name, sol::object in)
{
std::string field = "cb_" + name;
sol::object obj = sol().registry()[field];
if(obj.is<sol::protected_function>())
{
auto res = (obj.as<sol::protected_function>())(in);
if(!res.valid())
{
sol::error err = res;
osd_printf_error("[LUA ERROR] in call_plugin: %s\n", err.what());
}
else
return res.get<sol::object>();
}
return sol::make_object(sol(), sol::nil);
}
void lua_engine::menu_populate(const std::string &menu, std::vector<std::tuple<std::string, std::string, std::string>> &menu_list)
{
std::string field = "menu_pop_" + menu;
sol::object obj = sol().registry()[field];
if(obj.is<sol::protected_function>())
{
auto res = (obj.as<sol::protected_function>())();
if(!res.valid())
{
sol::error err = res;
osd_printf_error("[LUA ERROR] in menu_populate: %s\n", err.what());
}
else
{
sol::table table = res;
for(auto &entry : table)
{
if(entry.second.is<sol::table>())
{
sol::table enttable = entry.second.as<sol::table>();
menu_list.emplace_back(enttable.get<std::string, std::string, std::string>(1, 2, 3));
}
}
}
}
}
bool lua_engine::menu_callback(const std::string &menu, int index, const std::string &event)
{
std::string field = "menu_cb_" + menu;
bool ret = false;
sol::object obj = sol().registry()[field];
if(obj.is<sol::protected_function>())
{
auto res = (obj.as<sol::protected_function>())(index, event);
if(!res.valid())
{
sol::error err = res;
osd_printf_error("[LUA ERROR] in menu_callback: %s\n", err.what());
}
else
ret = res;
}
return ret;
}
bool lua_engine::execute_function(const char *id)
{
sol::object functable = sol().registry()[id];
if(functable.is<sol::table>())
{
for(auto &func : functable.as<sol::table>())
{
if(func.second.is<sol::protected_function>())
{
auto ret = (func.second.as<sol::protected_function>())();
if(!ret.valid())
{
sol::error err = ret;
osd_printf_error("[LUA ERROR] in execute_function: %s\n", err.what());
}
}
}
return true;
}
return false;
}
void lua_engine::register_function(sol::function func, const char *id)
{
sol::object functable = sol().registry()[id];
if(functable.is<sol::table>())
functable.as<sol::table>().add(func);
else
sol().registry().create_named(id, 1, func);
}
void lua_engine::on_machine_prestart()
{
execute_function("LUA_ON_PRESTART");
}
void lua_engine::on_machine_start()
{
execute_function("LUA_ON_START");
}
void lua_engine::on_machine_stop()
{
execute_function("LUA_ON_STOP");
}
void lua_engine::on_machine_pause()
{
execute_function("LUA_ON_PAUSE");
}
void lua_engine::on_machine_resume()
{
execute_function("LUA_ON_RESUME");
}
void lua_engine::on_machine_frame()
{
execute_function("LUA_ON_FRAME");
}
void lua_engine::on_frame_done()
{
execute_function("LUA_ON_FRAME_DONE");
}
void lua_engine::on_periodic()
{
execute_function("LUA_ON_PERIODIC");
}
void lua_engine::attach_notifiers()
{
machine().add_notifier(MACHINE_NOTIFY_RESET, machine_notify_delegate(&lua_engine::on_machine_prestart, this), true);
machine().add_notifier(MACHINE_NOTIFY_RESET, machine_notify_delegate(&lua_engine::on_machine_start, this));
machine().add_notifier(MACHINE_NOTIFY_EXIT, machine_notify_delegate(&lua_engine::on_machine_stop, this));
machine().add_notifier(MACHINE_NOTIFY_PAUSE, machine_notify_delegate(&lua_engine::on_machine_pause, this));
machine().add_notifier(MACHINE_NOTIFY_RESUME, machine_notify_delegate(&lua_engine::on_machine_resume, this));
machine().add_notifier(MACHINE_NOTIFY_FRAME, machine_notify_delegate(&lua_engine::on_machine_frame, this));
}
//-------------------------------------------------
// initialize - initialize lua hookup to emu engine
//-------------------------------------------------
void lua_engine::initialize()
{
/*
* emu.app_name() - return application name
* emu.app_version() - return application version
* emu.gamename() - returns game full name
* emu.softname() - returns softlist name
* emu.keypost(keys) - post keys to natural keyboard
* emu.time() - return emulation time
* emu.start(driver) - start given driver
* emu.pause() - pause emulation
* emu.unpause() - unpause emulation
* emu.register_prestart(callback) - callback before reset
* emu.register_start(callback) - callback after reset
* emu.register_stop(callback) - callback after stopping
* emu.register_pause(callback) - callback at pause
* emu.register_resume(callback) - callback at resume
* emu.register_frame(callback) - callback at end of frame
* emu.register_frame_done(callback) - callback after frame is drawn to screen (for overlays)
* emu.register_periodic(callback) - periodic callback while program is running
* emu.register_menu(event_callback, populate_callback, name) - callbacks for plugin menu
* emu.print_verbose(str) -- output to stderr at verbose level
* emu.print_error(str) -- output to stderr at error level
* emu.print_info(str) -- output to stderr at info level
* emu.print_debug(str) -- output to stderr at debug level
* emu.driver_find(driver) -- find and return game_driver for driver
* emu.wait(len) -- wait for len within coroutine
* emu.lang_translate(str) -- get translation for str if available
*/
sol::table emu = sol().create_named_table("emu");
emu["app_name"] = &emulator_info::get_appname_lower;
emu["app_version"] = &emulator_info::get_bare_build_version;
emu["gamename"] = [this](){ return machine().system().type.fullname(); };
emu["romname"] = [this](){ return machine().basename(); };
emu["softname"] = [this]() { return machine().options().software_name(); };
emu["keypost"] = [this](const char *keys){ machine().ioport().natkeyboard().post_utf8(keys); };
emu["time"] = [this](){ return machine().time().as_double(); };
emu["start"] = [this](const char *driver) {
int i = driver_list::find(driver);
if (i != -1)
{
mame_machine_manager::instance()->schedule_new_driver(driver_list::driver(i));
machine().schedule_hard_reset();
}
return 1;
};
emu["pause"] = [this](){ return machine().pause(); };
emu["unpause"] = [this](){ return machine().resume(); };
emu["register_prestart"] = [this](sol::function func){ register_function(func, "LUA_ON_PRESTART"); };
emu["register_start"] = [this](sol::function func){ register_function(func, "LUA_ON_START"); };
emu["register_stop"] = [this](sol::function func){ register_function(func, "LUA_ON_STOP"); };
emu["register_pause"] = [this](sol::function func){ register_function(func, "LUA_ON_PAUSE"); };
emu["register_resume"] = [this](sol::function func){ register_function(func, "LUA_ON_RESUME"); };
emu["register_frame"] = [this](sol::function func){ register_function(func, "LUA_ON_FRAME"); };
emu["register_frame_done"] = [this](sol::function func){ register_function(func, "LUA_ON_FRAME_DONE"); };
emu["register_periodic"] = [this](sol::function func){ register_function(func, "LUA_ON_PERIODIC"); };
emu["register_menu"] = [this](sol::function cb, sol::function pop, const std::string &name) {
std::string cbfield = "menu_cb_" + name;
std::string popfield = "menu_pop_" + name;
sol().registry()[cbfield] = cb;
sol().registry()[popfield] = pop;
m_menu.push_back(name);
};
emu["show_menu"] = [this](const char *name) {
mame_ui_manager &mui = mame_machine_manager::instance()->ui();
render_container &container = machine().render().ui_container();
ui::menu_plugin::show_menu(mui, container, (char *)name);
};
emu["register_callback"] = [this](sol::function cb, const std::string &name) {
std::string field = "cb_" + name;
sol().registry()[field] = cb;
};
emu["print_verbose"] = [](const char *str) { osd_printf_verbose("%s\n", str); };
emu["print_error"] = [](const char *str) { osd_printf_error("%s\n", str); };
emu["print_info"] = [](const char *str) { osd_printf_info("%s\n", str); };
emu["print_debug"] = [](const char *str) { osd_printf_debug("%s\n", str); };
emu["driver_find"] = [this](const char *driver) -> sol::object {
int i = driver_list::find(driver);
if(i == -1)
return sol::make_object(sol(), sol::nil);
return sol::make_object(sol(), driver_list::driver(i));
};
emu["wait"] = lua_CFunction([](lua_State *L) {
lua_engine *engine = mame_machine_manager::instance()->lua();
luaL_argcheck(L, lua_isnumber(L, 1), 1, "waiting duration expected");
int ret = lua_pushthread(L);
if(ret == 1)
return luaL_error(L, "cannot wait from outside coroutine");
int ref = luaL_ref(L, LUA_REGISTRYINDEX);
engine->machine().scheduler().timer_set(attotime::from_double(lua_tonumber(L, 1)), timer_expired_delegate(FUNC(lua_engine::resume), engine), ref, nullptr);
return lua_yield(L, 0);
});
emu["lang_translate"] = &lang_translate;
emu["pid"] = &osd_getpid;
/*
* emu.file([opt] searchpath, flags) - flags can be as in osdcore "OPEN_FLAG_*" or lua style with 'rwc' with addtional c for create *and truncate* (be careful)
* support zipped files on the searchpath
* file:open(name) - open first file matching name in searchpath, supports read and write sockets as "socket.127.0.0.1:1234"
* file:open_next() - open next file matching name in searchpath
* file:read(len) - only reads len bytes, doen't do lua style formats
* file:write(data) - write data to file
* file:seek(offset, whence) - whence is as C "SEEK_*" int
* file:seek([opt] whence, [opt] offset) - lua style "set"|"cur"|"end", returns cur offset
* file:size() -
* file:filename() - name of current file, container name if file is in zip
* file:fullpath() -
*/
emu.new_usertype<emu_file>("file", sol::call_constructor, sol::initializers([](emu_file &file, u32 flags) { new (&file) emu_file(flags); },
[](emu_file &file, const char *path, u32 flags) { new (&file) emu_file(path, flags); },
[](emu_file &file, const char *mode) {
int flags = 0;
for(int i = 0; i < 3 && mode[i]; i++) // limit to three chars
{
switch(mode[i])
{
case 'r':
flags |= OPEN_FLAG_READ;
break;
case 'w':
flags |= OPEN_FLAG_WRITE;
break;
case 'c':
flags |= OPEN_FLAG_CREATE;
break;
}
}
new (&file) emu_file(flags);
},
[](emu_file &file, const char *path, const char* mode) {
int flags = 0;
for(int i = 0; i < 3 && mode[i]; i++) // limit to three chars
{
switch(mode[i])
{
case 'r':
flags |= OPEN_FLAG_READ;
break;
case 'w':
flags |= OPEN_FLAG_WRITE;
break;
case 'c':
flags |= OPEN_FLAG_CREATE;
break;
}
}
new (&file) emu_file(path, flags);
}),
"read", [](emu_file &file, sol::buffer *buff) { buff->set_len(file.read(buff->get_ptr(), buff->get_len())); return buff; },
"write", [](emu_file &file, const std::string &data) { return file.write(data.data(), data.size()); },
"open", static_cast<osd_file::error (emu_file::*)(const std::string &)>(&emu_file::open),
"open_next", &emu_file::open_next,
"seek", sol::overload([](emu_file &file) { return file.tell(); },
[this](emu_file &file, s64 offset, int whence) -> sol::object {
if(file.seek(offset, whence))
return sol::make_object(sol(), sol::nil);
else
return sol::make_object(sol(), file.tell());
},
[this](emu_file &file, const char* whence) -> sol::object {
int wval = -1;
const char *seekdirs[] = {"set", "cur", "end"};
for(int i = 0; i < 3; i++)
{
if(!strncmp(whence, seekdirs[i], 3))
{
wval = i;
break;
}
}
if(wval < 0 || wval >= 3)
return sol::make_object(sol(), sol::nil);
if(file.seek(0, wval))
return sol::make_object(sol(), sol::nil);
return sol::make_object(sol(), file.tell());
},
[this](emu_file &file, const char* whence, s64 offset) -> sol::object {
int wval = -1;
const char *seekdirs[] = {"set", "cur", "end"};
for(int i = 0; i < 3; i++)
{
if(!strncmp(whence, seekdirs[i], 3))
{
wval = i;
break;
}
}
if(wval < 0 || wval >= 3)
return sol::make_object(sol(), sol::nil);
if(file.seek(offset, wval))
return sol::make_object(sol(), sol::nil);
return sol::make_object(sol(), file.tell());
}),
"size", &emu_file::size,
"filename", &emu_file::filename,
"fullpath", &emu_file::fullpath);
/*
* emu.thread()
* thread.start(scr) - run scr (string not function) in a seperate thread in a new empty (other then modules) lua context
* thread.continue(val) - resume thread and pass val to it
* thread.result() - get thread result as string
* thread.busy - check if thread is running
* thread.yield - check if thread is yielded
*/
emu.new_usertype<context>("thread", sol::call_constructor, sol::constructors<sol::types<>>(),
"start", [](context &ctx, const char *scr) {
std::string script(scr);
if(ctx.busy)
return false;
std::thread th([&ctx, script]() {
sol::state thstate;
thstate.open_libraries();
thstate["package"]["preload"]["zlib"] = &luaopen_zlib;
thstate["package"]["preload"]["lfs"] = &luaopen_lfs;
thstate["package"]["preload"]["linenoise"] = &luaopen_linenoise;
sol::load_result res = thstate.load(script);
if(res.valid())
{
sol::protected_function func = res.get<sol::protected_function>();
thstate["yield"] = [&ctx, &thstate]() {
std::mutex m;
std::unique_lock<std::mutex> lock(m);
ctx.result = thstate["status"];
ctx.yield = true;
ctx.sync.wait(lock);
ctx.yield = false;
thstate["status"] = ctx.result;
};
auto ret = func();
if (ret.valid()) {
const char *tmp = ret.get<const char *>();
if (tmp != nullptr)
ctx.result = tmp;
else
exit(0);
}
}
ctx.busy = false;
});
ctx.busy = true;
ctx.yield = false;
th.detach();
return true;
},
"continue", [](context &ctx, const char *val) {
if(!ctx.yield)
return;
ctx.result = val;
ctx.sync.notify_all();
},
"result", sol::property([](context &ctx) -> std::string {
if(ctx.busy && !ctx.yield)
return "";
return ctx.result;
}),
"busy", sol::readonly(&context::busy),
"yield", sol::readonly(&context::yield));
emu.new_usertype<save_item>("item", sol::call_constructor, sol::initializers([this](save_item &item, int index) {
if(!machine().save().indexed_item(index, item.base, item.size, item.count))
{
item.base = nullptr;
item.size = 0;
item.count= 0;
}
}),
"size", sol::readonly(&save_item::size),
"count", sol::readonly(&save_item::count),
"read", [this](save_item &item, int offset) -> sol::object {
uint64_t ret = 0;
if(!item.base || (offset > item.count))
return sol::make_object(sol(), sol::nil);
switch(item.size)
{
case 1:
default:
ret = ((uint8_t *)item.base)[offset];
break;
case 2:
ret = ((uint16_t *)item.base)[offset];
break;
case 4:
ret = ((uint32_t *)item.base)[offset];
break;
case 8:
ret = ((uint64_t *)item.base)[offset];
break;
}
return sol::make_object(sol(), ret);
},
"read_block", [](save_item &item, int offset, sol::buffer *buff) {
if(!item.base || ((offset + buff->get_len()) > (item.size * item.count)))
buff->set_len(0);
else
memcpy(buff->get_ptr(), item.base, buff->get_len());
return buff;
},
"write", [](save_item &item, int offset, uint64_t value) {
if(!item.base || (offset > item.count))
return;
switch(item.size)
{
case 1:
default:
((uint8_t *)item.base)[offset] = (uint8_t)value;
break;
case 2:
((uint16_t *)item.base)[offset] = (uint16_t)value;
break;
case 4:
((uint32_t *)item.base)[offset] = (uint32_t)value;
break;
case 8:
((uint64_t *)item.base)[offset] = (uint64_t)value;
break;
}
});
/* manager:options()
* machine:options()
* machine:ui():options()
* options:help() - get help for options
* options:command(command) - return output for command
* options.entries[] - get table of option entries
*/
sol().registry().new_usertype<core_options>("core_options", "new", sol::no_constructor,
"help", &core_options::output_help,
"command", &core_options::command,
"entries", sol::property([this](core_options &options) {
sol::table table = sol().create_table();
int unadorned_index = 0;
for (auto &curentry : options.entries())
{
const char *name = curentry->names().size() > 0
? curentry->name().c_str()
: nullptr;
bool is_unadorned = false;
// check if it's unadorned
if (name && strlen(name) && !strcmp(name, options.unadorned(unadorned_index)))
{
unadorned_index++;
is_unadorned = true;
}
if (curentry->type() != core_options::option_type::HEADER && curentry->type() != core_options::option_type::COMMAND && !is_unadorned)
table[name] = &*curentry;
}
return table;
}));
/* options.entries[entry_name]
* entry.value() - get value of entry
* entry.value(val) - set entry to val
* entry.description() - get info about entry
* entry.default_value() - get default for entry
* entry.minimum() - get min value for entry
* entry.maximum() - get max value for entry
* entry.has_range() - are min and max valid for entry
*/
sol().registry().new_usertype<core_options::entry>("core_options_entry", "new", sol::no_constructor,
"value", sol::overload([this](core_options::entry &e, bool val) {
if(e.type() != OPTION_BOOLEAN)
luaL_error(m_lua_state, "Cannot set option to wrong type");
else
e.set_value(val ? "1" : "0", OPTION_PRIORITY_CMDLINE);
},
[this](core_options::entry &e, float val) {
if(e.type() != OPTION_FLOAT)
luaL_error(m_lua_state, "Cannot set option to wrong type");
else
e.set_value(string_format("%f", val).c_str(), OPTION_PRIORITY_CMDLINE);
},
[this](core_options::entry &e, int val) {
if(e.type() != OPTION_INTEGER)
luaL_error(m_lua_state, "Cannot set option to wrong type");
else
e.set_value(string_format("%d", val).c_str(), OPTION_PRIORITY_CMDLINE);
},
[this](core_options::entry &e, const char *val) {
if(e.type() != OPTION_STRING)
luaL_error(m_lua_state, "Cannot set option to wrong type");
else
e.set_value(val, OPTION_PRIORITY_CMDLINE);
},
[this](core_options::entry &e) -> sol::object {
if (e.type() == core_options::option_type::INVALID)
return sol::make_object(sol(), sol::nil);
switch(e.type())
{
case core_options::option_type::BOOLEAN:
return sol::make_object(sol(), atoi(e.value()) != 0);
case core_options::option_type::INTEGER:
return sol::make_object(sol(), atoi(e.value()));
case core_options::option_type::FLOAT:
return sol::make_object(sol(), atof(e.value()));
default:
return sol::make_object(sol(), e.value());
}
}),
"description", &core_options::entry::description,
"default_value", &core_options::entry::default_value,
"minimum", &core_options::entry::minimum,
"maximum", &core_options::entry::maximum,
"has_range", &core_options::entry::has_range);
/* manager:machine()
* machine:exit() - close program
* machine:hard_reset() - hard reset emulation
* machine:soft_reset() - soft reset emulation
* machine:save(filename) - save state to filename
* machine:load(filename) - load state from filename
* machine:system() - get game_driver for running driver
* machine:video() - get video_manager
* machine:render() - get render_manager
* machine:ioport() - get ioport_manager
* machine:parameters() - get parameter_manager
* machine:options() - get machine core_options
* machine:output() - get output_manager
* machine:input() - get input_manager
* machine:uiinput() - get ui_input_manager
* machine.paused - get paused state
* machine.devices[] - get device table
* machine.screens[] - get screens table
* machine.images[] - get available image devices
* machine:popmessage(str) - print str as popup
* machine:logerror(str) - print str to log
*/
sol().registry().new_usertype<running_machine> ("machine", "new", sol::no_constructor,
"exit", &running_machine::schedule_exit,
"hard_reset", &running_machine::schedule_hard_reset,
"soft_reset", &running_machine::schedule_soft_reset,
"save", &running_machine::schedule_save,
"load", &running_machine::schedule_load,
"system", &running_machine::system,
"video", &running_machine::video,
"render", &running_machine::render,
"ioport", &running_machine::ioport,
"parameters", &running_machine::parameters,
"memory", &running_machine::memory,
"options", [](running_machine &m) { return static_cast<core_options *>(&m.options()); },
"outputs", &running_machine::output,
"input", &running_machine::input,
"uiinput", &running_machine::ui_input,
"debugger", [this](running_machine &m) -> sol::object {
if(!(m.debug_flags & DEBUG_FLAG_ENABLED))
return sol::make_object(sol(), sol::nil);
return sol::make_object(sol(), &m.debugger());
},
"paused", sol::property(&running_machine::paused),
"devices", sol::property([this](running_machine &m) {
std::function<void(device_t &, sol::table)> tree;
sol::table table = sol().create_table();
tree = [&tree](device_t &root, sol::table table) {
for(device_t &dev : root.subdevices())
{
if(dev.configured() && dev.started())
{
table[dev.tag()] = &dev;
tree(dev, table);
}
}
};
tree(m.root_device(), table);
return table;
}),
"screens", sol::property([this](running_machine &r) {
sol::table table = sol().create_table();
for (screen_device &sc : screen_device_iterator(r.root_device()))
{
if (sc.configured() && sc.started() && sc.type())
table[sc.tag()] = &sc;
}
return table;
}),
"images", sol::property([this](running_machine &r) {
sol::table image_table = sol().create_table();
for(device_image_interface &image : image_interface_iterator(r.root_device()))
{
image_table[image.brief_instance_name()] = &image;
image_table[image.instance_name()] = &image;
}
return image_table;
}),
"popmessage", sol::overload([](running_machine &m, const char *str) { m.popmessage("%s", str); },
[](running_machine &m) { m.popmessage(); }),
"logerror", [](running_machine &m, const char *str) { m.logerror("[luaengine] %s\n", str); } );
/* game_driver - this should be self explanatory
*/
sol().registry().new_usertype<game_driver>("game_driver", "new", sol::no_constructor,
"source_file", sol::property([] (game_driver const &driver) { return &driver.type.source()[0]; }),
"parent", sol::readonly(&game_driver::parent),
"name", sol::property([] (game_driver const &driver) { return &driver.name[0]; }),
"description", sol::property([] (game_driver const &driver) { return &driver.type.fullname()[0]; }),
"year", sol::readonly(&game_driver::year),
"manufacturer", sol::readonly(&game_driver::manufacturer),
"compatible_with", sol::readonly(&game_driver::compatible_with),
"default_layout", sol::readonly(&game_driver::default_layout));
/* machine:debugger()
* debug:command(cmd) - run cmd in debugger console
* debug.consolelog[] - get consolelog
* debug.errorlog[] - get errorlog
* debug.visible_cpu - accessor for debugger active cpu for commands, affects debug views
* debug.execution_state - accessor for active cpu run state
*/
struct wrap_textbuf { wrap_textbuf(text_buffer *buf) { textbuf = buf; }; text_buffer *textbuf; };
sol().registry().new_usertype<debugger_manager>("debugger", "new", sol::no_constructor,
"command", [](debugger_manager &debug, const std::string &cmd) { debug.console().execute_command(cmd, false); },
"consolelog", sol::property([](debugger_manager &debug) { return wrap_textbuf(debug.console().get_console_textbuf()); }),
"errorlog", sol::property([](debugger_manager &debug) { return wrap_textbuf(debug.console().get_errorlog_textbuf()); }),
"visible_cpu", sol::property([](debugger_manager &debug) { debug.cpu().get_visible_cpu(); },
[](debugger_manager &debug, device_t &dev) { debug.cpu().set_visible_cpu(&dev); }),
"execution_state", sol::property([](debugger_manager &debug) {
return debug.cpu().is_stopped() ? "stop" : "run";
},
[](debugger_manager &debug, const std::string &state) {
if(state == "stop")
debug.cpu().set_execution_stopped();
else
debug.cpu().set_execution_running();
}));
sol().registry().new_usertype<wrap_textbuf>("text_buffer", "new", sol::no_constructor,
"__metatable", [](){},
"__newindex", [](){},
"__index", [](wrap_textbuf &buf, int index) { return text_buffer_get_seqnum_line(buf.textbuf, index - 1); },
"__len", [](wrap_textbuf &buf) { return text_buffer_num_lines(buf.textbuf) + text_buffer_line_index_to_seqnum(buf.textbuf, 0) - 1; });
/* device:debug()
* debug:step([opt] steps) - run cpu steps, default 1
* debug:go() - run cpu
* debug:bpset(addr, cond, act) - set break, cond and act are debugger expressions
* debug:bpclr(idx) - clear break
* debug:bplist()[] - table of breakpoints
* debug:wpset(space, type, addr, len, cond, act) - set watch, cond and act are debugger expressions
* debug:wpclr(idx) - clear watch
* debug:wplist(space)[] - table of watchpoints
*/
sol().registry().new_usertype<device_debug>("device_debug", "new", sol::no_constructor,
"step", [](device_debug &dev, sol::object num) {
int steps = 1;
if(num.is<int>())
steps = num.as<int>();
dev.single_step(steps);
},
"go", &device_debug::go,
"bpset", [](device_debug &dev, offs_t addr, const char *cond, const char *act) { return dev.breakpoint_set(addr, cond, act); },
"bpclr", &device_debug::breakpoint_clear,
"bplist", [this](device_debug &dev) {
sol::table table = sol().create_table();
device_debug::breakpoint *list = dev.breakpoint_first();
while(list)
{
sol::table bp = sol().create_table();
bp["enabled"] = list->enabled();
bp["address"] = list->address();
bp["condition"] = list->condition();
bp["action"] = list->action();
table[list->index()] = bp;
list = list->next();
}
return table;
},
"wpset", [](device_debug &dev, addr_space &sp, const std::string &type, offs_t addr, offs_t len, const char *cond, const char *act) {
read_or_write wptype = read_or_write::READ;
if(type == "w")
wptype = read_or_write::WRITE;
else if((type == "rw") || (type == "wr"))
wptype = read_or_write::READWRITE;
return dev.watchpoint_set(sp.space, wptype, addr, len, cond, act);
},
"wpclr", &device_debug::watchpoint_clear,
"wplist", [this](device_debug &dev, addr_space &sp) {
sol::table table = sol().create_table();
for(auto &wpp : dev.watchpoint_vector(sp.space.spacenum()))
{
sol::table wp = sol().create_table();
wp["enabled"] = wpp->enabled();
wp["address"] = wpp->address();
wp["length"] = wpp->length();
switch(wpp->type())
{
case read_or_write::READ:
wp["type"] = "r";
break;
case read_or_write::WRITE:
wp["type"] = "w";
break;
case read_or_write::READWRITE:
wp["type"] = "rw";
break;
default: // huh?
wp["type"] = "";
break;
}
wp["condition"] = wpp->condition();
wp["action"] = wpp->action();
table[wpp->index()] = wp;
}
return table;
});
/* machine.devices[device_tag]
* device:name() - device long name
* device:shortname() - device short name
* device:tag() - device tree tag
* device:owner() - device parent tag
* device:debug() - debug interface, cpus only
* device.spaces[] - device address spaces table
* device.state[] - device state entries table
* device.items[] - device save state items table
*/
sol().registry().new_usertype<device_t>("device", "new", sol::no_constructor,
"name", &device_t::name,
"shortname", &device_t::shortname,
"tag", &device_t::tag,
"owner", &device_t::owner,
"debug", [this](device_t &dev) -> sol::object {
if(!(dev.machine().debug_flags & DEBUG_FLAG_ENABLED) || !dynamic_cast<cpu_device *>(&dev)) // debugger not enabled or not cpu
return sol::make_object(sol(), sol::nil);
return sol::make_object(sol(), dev.debug());
},
"spaces", sol::property([this](device_t &dev) {
device_memory_interface *memdev = dynamic_cast<device_memory_interface *>(&dev);
sol::table sp_table = sol().create_table();
if(!memdev)
return sp_table;
for(int sp = 0; sp < memdev->max_space_count(); ++sp)
{
if(memdev->has_space(sp))
sp_table[memdev->space(sp).name()] = addr_space(memdev->space(sp), *memdev);
}
return sp_table;
}),
"state", sol::property([this](device_t &dev) {
sol::table st_table = sol().create_table();
if(!dynamic_cast<device_state_interface *>(&dev))
return st_table;
// XXX: refrain from exporting non-visible entries?
for(auto &s : dev.state().state_entries())
st_table[s->symbol()] = s.get();
return st_table;
}),
"items", sol::property([this](device_t &dev) {
sol::table table = sol().create_table();
std::string tag = dev.tag();
// 10000 is enough?
for(int i = 0; i < 10000; i++)
{
std::string name;
const char *item;
unsigned int size, count;
void *base;
item = dev.machine().save().indexed_item(i, base, size, count);
if(!item)
break;
name = &(strchr(item, '/')[1]);
if(name.substr(0, name.find("/")) == tag)
{
name = name.substr(name.find("/") + 1, std::string::npos);
table[name] = i;
}
}
return table;
}));
sol().registry().new_usertype<addr_space>("addr_space", sol::call_constructor, sol::constructors<sol::types<address_space &, device_memory_interface &>>(),
"read_i8", &addr_space::mem_read<int8_t>,
"read_u8", &addr_space::mem_read<uint8_t>,
"read_i16", &addr_space::mem_read<int16_t>,
"read_u16", &addr_space::mem_read<uint16_t>,
"read_i32", &addr_space::mem_read<int32_t>,
"read_u32", &addr_space::mem_read<uint32_t>,
"read_i64", &addr_space::mem_read<int64_t>,
"read_u64", &addr_space::mem_read<uint64_t>,
"write_i8", &addr_space::mem_write<int8_t>,
"write_u8", &addr_space::mem_write<uint8_t>,
"write_i16", &addr_space::mem_write<int16_t>,
"write_u16", &addr_space::mem_write<uint16_t>,
"write_i32", &addr_space::mem_write<int32_t>,
"write_u32", &addr_space::mem_write<uint32_t>,
"write_i64", &addr_space::mem_write<int64_t>,
"write_u64", &addr_space::mem_write<uint64_t>,
"read_log_i8", &addr_space::log_mem_read<int8_t>,
"read_log_u8", &addr_space::log_mem_read<uint8_t>,
"read_log_i16", &addr_space::log_mem_read<int16_t>,
"read_log_u16", &addr_space::log_mem_read<uint16_t>,
"read_log_i32", &addr_space::log_mem_read<int32_t>,
"read_log_u32", &addr_space::log_mem_read<uint32_t>,
"read_log_i64", &addr_space::log_mem_read<int64_t>,
"read_log_u64", &addr_space::log_mem_read<uint64_t>,
"write_log_i8", &addr_space::log_mem_write<int8_t>,
"write_log_u8", &addr_space::log_mem_write<uint8_t>,
"write_log_i16", &addr_space::log_mem_write<int16_t>,
"write_log_u16", &addr_space::log_mem_write<uint16_t>,
"write_log_i32", &addr_space::log_mem_write<int32_t>,
"write_log_u32", &addr_space::log_mem_write<uint32_t>,
"write_log_i64", &addr_space::log_mem_write<int64_t>,
"write_log_u64", &addr_space::log_mem_write<uint64_t>,
"read_direct_i8", &addr_space::direct_mem_read<int8_t>,
"read_direct_u8", &addr_space::direct_mem_read<uint8_t>,
"read_direct_i16", &addr_space::direct_mem_read<int16_t>,
"read_direct_u16", &addr_space::direct_mem_read<uint16_t>,
"read_direct_i32", &addr_space::direct_mem_read<int32_t>,
"read_direct_u32", &addr_space::direct_mem_read<uint32_t>,
"read_direct_i64", &addr_space::direct_mem_read<int64_t>,
"read_direct_u64", &addr_space::direct_mem_read<uint64_t>,
"write_direct_i8", &addr_space::direct_mem_write<int8_t>,
"write_direct_u8", &addr_space::direct_mem_write<uint8_t>,
"write_direct_i16", &addr_space::direct_mem_write<int16_t>,
"write_direct_u16", &addr_space::direct_mem_write<uint16_t>,
"write_direct_i32", &addr_space::direct_mem_write<int32_t>,
"write_direct_u32", &addr_space::direct_mem_write<uint32_t>,
"write_direct_i64", &addr_space::direct_mem_write<int64_t>,
"write_direct_u64", &addr_space::direct_mem_write<uint64_t>,
"name", sol::property([](addr_space &sp) { return sp.space.name(); }),
"shift", sol::property([](addr_space &sp) { return sp.space.addr_shift(); }),
"index", sol::property([](addr_space &sp) { return sp.space.spacenum(); }),
"map", sol::property([this](addr_space &sp) {
address_space &space = sp.space;
sol::table map = sol().create_table();
for (address_map_entry &entry : space.map()->m_entrylist)
{
sol::table mapentry = sol().create_table();
mapentry["offset"] = entry.m_addrstart & space.addrmask();
mapentry["endoff"] = entry.m_addrend & space.addrmask();
mapentry["readtype"] = entry.m_read.m_type;
mapentry["writetype"] = entry.m_write.m_type;
map.add(mapentry);
}
return map;
}));
/* machine:ioport()
* ioport:count_players() - get count of player controllers
* ioport.ports[] - ioports table
*/
sol().registry().new_usertype<ioport_manager>("ioport", "new", sol::no_constructor,
"count_players", &ioport_manager::count_players,
"ports", sol::property([this](ioport_manager &im) {
sol::table port_table = sol().create_table();
for (auto &port : im.ports())
port_table[port.second->tag()] = port.second.get();
return port_table;
}));
/* ioport.ports[port_tag]
* port:tag() - get port tag
* port:active() - get port status
* port:live() - get port ioport_port_live (TODO: not usable from lua as of now)
* port:read() - get port value
* port:write(val, mask) - set port to value & mask (output fields only, for other fields use field:set_value(val))
* port:field(mask) - get ioport_field for port and mask
* port.field[] - get ioport_field table
*/
sol().registry().new_usertype<ioport_port>("ioport_port", "new", sol::no_constructor,
"tag", &ioport_port::tag,
"active", &ioport_port::active,
"live", &ioport_port::live,
"read", &ioport_port::read,
"write", &ioport_port::write,
"field", &ioport_port::field,
"fields", sol::property([this](ioport_port &p){
sol::table f_table = sol().create_table();
// parse twice for custom and default names, default has priority
for(ioport_field &field : p.fields())
{
if (field.type_class() != INPUT_CLASS_INTERNAL)
f_table[field.name()] = &field;
}
for(ioport_field &field : p.fields())
{
if (field.type_class() != INPUT_CLASS_INTERNAL)
{
if(field.specific_name())
f_table[field.specific_name()] = &field;
else
f_table[field.manager().type_name(field.type(), field.player())] = &field;
}
}
return f_table;
}));
/* port.field[field_tag] - this should be self explanatory
*/
sol().registry().new_usertype<ioport_field>("ioport_field", "new", sol::no_constructor,
"set_value", &ioport_field::set_value,
"device", sol::property(&ioport_field::device),
"name", sol::property(&ioport_field::name),
"default_name", sol::property([](ioport_field &f) {
return f.specific_name() ? f.specific_name() : f.manager().type_name(f.type(), f.player());
}),
"player", sol::property(&ioport_field::player, &ioport_field::set_player),
"mask", sol::property(&ioport_field::mask),
"defvalue", sol::property(&ioport_field::defvalue),
"sensitivity", sol::property(&ioport_field::sensitivity),
"way", sol::property(&ioport_field::way),
"is_analog", sol::property(&ioport_field::is_analog),
"is_digital_joystick", sol::property(&ioport_field::is_digital_joystick),
"enabled", sol::property(&ioport_field::enabled),
"optional", sol::property(&ioport_field::optional),
"cocktail", sol::property(&ioport_field::cocktail),
"toggle", sol::property(&ioport_field::toggle),
"rotated", sol::property(&ioport_field::rotated),
"analog_reverse", sol::property(&ioport_field::analog_reverse),
"analog_reset", sol::property(&ioport_field::analog_reset),
"analog_wraps", sol::property(&ioport_field::analog_wraps),
"analog_invert", sol::property(&ioport_field::analog_invert),
"impulse", sol::property(&ioport_field::impulse),
"type", sol::property(&ioport_field::type),
"live", sol::property(&ioport_field::live),
"crosshair_scale", sol::property(&ioport_field::crosshair_scale, &ioport_field::set_crosshair_scale),
"crosshair_offset", sol::property(&ioport_field::crosshair_offset, &ioport_field::set_crosshair_offset));
/* field.live
*/
sol().registry().new_usertype<ioport_field_live>("ioport_field_live", "new", sol::no_constructor,
"name", &ioport_field_live::name);
/* machine:parameters()
* parameter:add(tag, val) - add tag = val parameter
* parameter:lookup(tag) - get val for tag
*/
sol().registry().new_usertype<parameters_manager>("parameters", "new", sol::no_constructor,
"add", &parameters_manager::add,
"lookup", &parameters_manager::lookup);
/* machine:video()
* video:begin_recording([opt] filename) - start recording to filename if given or default
* video:end_recording() - stop recording
* video:snapshot() - save shot of all screens
* video:is_recording() - get recording status
* video:skip_this_frame() - is current frame going to be skipped
* video:speed_factor() - get speed factor
* video:speed_percent() - get percent from realtime
* video.frameskip - current frameskip
* video.throttled - throttle state
* video.throttle_rate - throttle rate
*/
sol().registry().new_usertype<video_manager>("video", "new", sol::no_constructor,
"begin_recording", sol::overload([this](video_manager &vm, const char *filename) {
std::string fn = filename;
strreplace(fn, "/", PATH_SEPARATOR);
strreplace(fn, "%g", machine().basename());
vm.begin_recording(fn.c_str(), video_manager::MF_AVI);
},
[](video_manager &vm) { vm.begin_recording(nullptr, video_manager::MF_AVI); }),
"end_recording", [this](video_manager &vm) {
if(!vm.is_recording())
{
machine().logerror("[luaengine] No active recording to stop\n");
return;
}
vm.end_recording(video_manager::MF_AVI);
},
"snapshot", &video_manager::save_active_screen_snapshots,
"is_recording", &video_manager::is_recording,
"skip_this_frame", &video_manager::skip_this_frame,
"speed_factor", &video_manager::speed_factor,
"speed_percent", &video_manager::speed_percent,
"frame_update", &video_manager::frame_update,
"frameskip", sol::property(&video_manager::frameskip, &video_manager::set_frameskip),
"throttled", sol::property(&video_manager::throttled, &video_manager::set_throttled),
"throttle_rate", sol::property(&video_manager::throttle_rate, &video_manager::set_throttle_rate));
/* machine:input()
* input:code_from_token(token) - get input_code for KEYCODE_* string token
* input:code_pressed(code) - get pressed state for input_code
* input:code_to_token(code) - get KEYCODE_* string token for code
* input:code_name(code) - get code friendly name
* input:seq_from_tokens(tokens) - get input_seq for multiple space separated KEYCODE_* string tokens
* input:seq_pressed(seq) - get pressed state for input_seq
* input:seq_to_tokens(seq) - get KEYCODE_* string tokens for seq
* input:seq_name(seq) - get seq friendly name
*/
sol().registry().new_usertype<input_manager>("input", "new", sol::no_constructor,
"code_from_token", [](input_manager &input, const char *token) { return sol::make_user(input.code_from_token(token)); },
"code_pressed", [](input_manager &input, sol::user<input_code> code) { return input.code_pressed(code); },
"code_to_token", [](input_manager &input, sol::user<input_code> code) { return input.code_to_token(code); },
"code_name", [](input_manager &input, sol::user<input_code> code) { return input.code_name(code); },
"seq_from_tokens", [](input_manager &input, const char *tokens) { input_seq seq; input.seq_from_tokens(seq, tokens); return sol::make_user(seq); },
"seq_pressed", [](input_manager &input, sol::user<input_seq> seq) { return input.seq_pressed(seq); },
"seq_to_tokens", [](input_manager &input, sol::user<input_seq> seq) { return input.seq_to_tokens(seq); },
"seq_name", [](input_manager &input, sol::user<input_seq> seq) { return input.seq_name(seq); },
"seq_poll_start", [](input_manager &input, input_item_class cls, sol::object seq) {
input_seq *start = nullptr;
if(seq.is<sol::user<input_seq>>())
start = &seq.as<sol::user<input_seq>>();
input.seq_poll_start(cls, start);
},
"seq_poll", &input_manager::seq_poll,
"seq_poll_final", [](input_manager &input) { return sol::make_user(input.seq_poll_final()); });
/* machine:uiinput()
* uiinput:find_mouse() - returns x, y, button state, ui render target
* uiinput:pressed(key) - get pressed state for ui key
*/
sol().registry().new_usertype<ui_input_manager>("uiinput", "new", sol::no_constructor,
"find_mouse", [](ui_input_manager &ui) {
int32_t x, y;
bool button;
render_target *rt = ui.find_mouse(&x, &y, &button);
return std::tuple<int32_t, int32_t, bool, render_target *>(x, y, button, rt);
},
"pressed", &ui_input_manager::pressed);
/* render.targets[target_index]
* render:ui_target()
* target:view_bounds() - get x0, x1, y0, y1 bounds for target
* target:width() - get target width
* target:height() - get target height
* target:pixel_aspect() - get target aspect
* target:hidden() - is target hidden
* target:is_ui_target() - is ui render target
* target:index() - target index
* target:view_name(index) - current target layout view name
* target.max_update_rate -
* target.view - current target layout view
* target.orientation - current target orientation
* target.backdrops - enable backdrops
* target.bezels - enable bezels
* target.marquees - enable marquees
* target.screen_overlay - enable overlays
* target.zoom - enable zoom
*/
sol().registry().new_usertype<render_target>("target", "new", sol::no_constructor,
"view_bounds", [](render_target &rt) {
const render_bounds b = rt.current_view()->bounds();
return std::tuple<float, float, float, float>(b.x0, b.x1, b.y0, b.y1);
},
"width", &render_target::width,
"height", &render_target::height,
"pixel_aspect", &render_target::pixel_aspect,
"hidden", &render_target::hidden,
"is_ui_target", &render_target::is_ui_target,
"index", &render_target::index,
"view_name", &render_target::view_name,
"max_update_rate", sol::property(&render_target::max_update_rate, &render_target::set_max_update_rate),
"view", sol::property(&render_target::view, &render_target::set_view),
"orientation", sol::property(&render_target::orientation, &render_target::set_orientation),
"backdrops", sol::property(&render_target::backdrops_enabled, &render_target::set_backdrops_enabled),
"overlays", sol::property(&render_target::overlays_enabled, &render_target::set_overlays_enabled),
"bezels", sol::property(&render_target::bezels_enabled, &render_target::set_bezels_enabled),
"marquees", sol::property(&render_target::marquees_enabled, &render_target::set_marquees_enabled),
"screen_overlay", sol::property(&render_target::screen_overlay_enabled, &render_target::set_screen_overlay_enabled),
"zoom", sol::property(&render_target::zoom_to_screen, &render_target::set_zoom_to_screen));
/* render:ui_container() - this should be self explanatory
*/
sol().registry().new_usertype<render_container>("render_container", "new", sol::no_constructor,
"orientation", &render_container::orientation,
"xscale", &render_container::xscale,
"yscale", &render_container::yscale,
"xoffset", &render_container::xoffset,
"yoffset", &render_container::yoffset,
"is_empty", &render_container::is_empty);
/* machine:render()
* render:max_update_rate() -
* render:ui_target() - target for ui drawing
* render:ui_container() - container for ui drawing
* render.target[] - render_target table
*/
sol().registry().new_usertype<render_manager>("render", "new", sol::no_constructor,
"max_update_rate", &render_manager::max_update_rate,
"ui_target", &render_manager::ui_target,
"ui_container", &render_manager::ui_container,
"targets", [this](render_manager &r) {
sol::table target_table = sol().create_table();
int tc = 0;
for(render_target &curr_rt : r.targets())
target_table[tc++] = &curr_rt;
return target_table;
});
/* machine.screens[screen_tag]
* screen:draw_box(x1, y1, x2, y2, fillcol, linecol) - draw box from (x1, y1)-(x2, y2) colored linecol filled with fillcol
* screen:draw_line(x1, y1, x2, y2, linecol) - draw line from (x1, y1)-(x2, y2) colored linecol
* screen:draw_text(x || justify, y, message, [opt] color) - draw message at (x, y) or at line y with left, right, center justification
* screen:height() - screen height
* screen:width() - screen width
* screen:orientation() - screen angle, flipx, flipy
* screen:refresh() - screen refresh rate
* screen:snapshot() - save snap shot
* screen:type() - screen drawing type
* screen:frame_number() - screen frame count
* screen:name() - screen device full name
* screen:shortname() - screen device short name
* screen:tag() - screen device tag
* screen:xscale() - screen x scale factor
* screen:yscale() - screen y scale factor
*/
sol().registry().new_usertype<screen_device>("screen_dev", "new", sol::no_constructor,
"draw_box", [](screen_device &sdev, float x1, float y1, float x2, float y2, uint32_t bgcolor, uint32_t fgcolor) {
int sc_width = sdev.visible_area().width();
int sc_height = sdev.visible_area().height();
x1 = std::min(std::max(0.0f, x1), float(sc_width-1)) / float(sc_width);
y1 = std::min(std::max(0.0f, y1), float(sc_height-1)) / float(sc_height);
x2 = std::min(std::max(0.0f, x2), float(sc_width-1)) / float(sc_width);
y2 = std::min(std::max(0.0f, y2), float(sc_height-1)) / float(sc_height);
mame_machine_manager::instance()->ui().draw_outlined_box(sdev.container(), x1, y1, x2, y2, fgcolor, bgcolor);
},
"draw_line", [](screen_device &sdev, float x1, float y1, float x2, float y2, uint32_t color) {
int sc_width = sdev.visible_area().width();
int sc_height = sdev.visible_area().height();
x1 = std::min(std::max(0.0f, x1), float(sc_width-1)) / float(sc_width);
y1 = std::min(std::max(0.0f, y1), float(sc_height-1)) / float(sc_height);
x2 = std::min(std::max(0.0f, x2), float(sc_width-1)) / float(sc_width);
y2 = std::min(std::max(0.0f, y2), float(sc_height-1)) / float(sc_height);
sdev.container().add_line(x1, y1, x2, y2, UI_LINE_WIDTH, rgb_t(color), PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
},
"draw_text", [this](screen_device &sdev, sol::object xobj, float y, const char *msg, sol::object color) {
int sc_width = sdev.visible_area().width();
int sc_height = sdev.visible_area().height();
auto justify = ui::text_layout::LEFT;
float x = 0;
if(xobj.is<float>())
{
x = std::min(std::max(0.0f, xobj.as<float>()), float(sc_width-1)) / float(sc_width);
y = std::min(std::max(0.0f, y), float(sc_height-1)) / float(sc_height);
}
else if(xobj.is<const char *>())
{
std::string just_str = xobj.as<const char *>();
if(just_str == "right")
justify = ui::text_layout::RIGHT;
else if(just_str == "center")
justify = ui::text_layout::CENTER;
}
else
{
luaL_error(m_lua_state, "Error in param 1 to draw_text");
return;
}
rgb_t textcolor = UI_TEXT_COLOR;
rgb_t bgcolor = UI_TEXT_BG_COLOR;
if(color.is<uint32_t>())
textcolor = rgb_t(color.as<uint32_t>());
mame_machine_manager::instance()->ui().draw_text_full(sdev.container(), msg, x, y, (1.0f - x),
justify, ui::text_layout::WORD, mame_ui_manager::NORMAL, textcolor,
bgcolor, nullptr, nullptr);
},
"height", [](screen_device &sdev) { return sdev.visible_area().height(); },
"width", [](screen_device &sdev) { return sdev.visible_area().width(); },
"orientation", [](screen_device &sdev) {
uint32_t flags = sdev.orientation();
int rotation_angle = 0;
switch (flags)
{
case ORIENTATION_FLIP_X:
rotation_angle = 0;
break;
case ORIENTATION_SWAP_XY:
case ORIENTATION_SWAP_XY|ORIENTATION_FLIP_X:
rotation_angle = 90;
break;
case ORIENTATION_FLIP_Y:
case ORIENTATION_FLIP_X|ORIENTATION_FLIP_Y:
rotation_angle = 180;
break;
case ORIENTATION_SWAP_XY|ORIENTATION_FLIP_Y:
case ORIENTATION_SWAP_XY|ORIENTATION_FLIP_X|ORIENTATION_FLIP_Y:
rotation_angle = 270;
break;
}
return std::tuple<int, bool, bool>(rotation_angle, flags & ORIENTATION_FLIP_X, flags & ORIENTATION_FLIP_Y);
},
"refresh", [](screen_device &sdev) { return ATTOSECONDS_TO_HZ(sdev.refresh_attoseconds()); },
"snapshot", [this](screen_device &sdev, sol::object filename) -> sol::object {
emu_file file(machine().options().snapshot_directory(), OPEN_FLAG_WRITE | OPEN_FLAG_CREATE | OPEN_FLAG_CREATE_PATHS);
osd_file::error filerr;
if(filename.is<const char *>())
{
std::string snapstr(filename.as<const char *>());
strreplace(snapstr, "/", PATH_SEPARATOR);
strreplace(snapstr, "%g", machine().basename());
filerr = file.open(snapstr.c_str());
}
else
filerr = machine().video().open_next(file, "png");
if(filerr != osd_file::error::NONE)
return sol::make_object(sol(), filerr);
machine().video().save_snapshot(&sdev, file);
return sol::make_object(sol(), sol::nil);
},
"type", [](screen_device &sdev) {
switch (sdev.screen_type())
{
case SCREEN_TYPE_RASTER: return "raster"; break;
case SCREEN_TYPE_VECTOR: return "vector"; break;
case SCREEN_TYPE_LCD: return "lcd"; break;
case SCREEN_TYPE_SVG: return "svg"; break;
default: break;
}
return "unknown";
},
"frame_number", &screen_device::frame_number,
"name", &screen_device::name,
"shortname", &screen_device::shortname,
"tag", &screen_device::tag,
"xscale", &screen_device::xscale,
"yscale", &screen_device::yscale);
/* mame_manager:ui()
* ui:is_menu_active() - ui menu state
* ui:options() - ui core_options
* ui.show_fps - fps display enabled
* ui.show_profiler - profiler display enabled
* ui:get_line_height() - current ui font height
* ui:get_string_width(str, scale) - get str width with ui font at scale factor of current font size
* ui:get_char_width(char) - get width of utf8 glyph char with ui font
*/
sol().registry().new_usertype<mame_ui_manager>("ui", "new", sol::no_constructor,
"is_menu_active", &mame_ui_manager::is_menu_active,
"options", [](mame_ui_manager &m) { return static_cast<core_options *>(&m.options()); },
"show_fps", sol::property(&mame_ui_manager::show_fps, &mame_ui_manager::set_show_fps),
"show_profiler", sol::property(&mame_ui_manager::show_profiler, &mame_ui_manager::set_show_profiler),
"single_step", sol::property(&mame_ui_manager::single_step, &mame_ui_manager::set_single_step),
"get_line_height", &mame_ui_manager::get_line_height,
"get_string_width", &mame_ui_manager::get_string_width,
// sol converts char32_t to a string
"get_char_width", [](mame_ui_manager &m, uint32_t utf8char) { return m.get_char_width(utf8char); });
/* device.state[]
* state:name() - get device state name
* state:value() - get device state value
* state:is_visible() - is state visible in debugger
* state:is_divider() - is state a divider
*/
sol().registry().new_usertype<device_state_entry>("dev_space", "new", sol::no_constructor,
"name", &device_state_entry::symbol,
"value", sol::property([this](device_state_entry &entry) -> uint64_t {
device_state_interface *state = entry.parent_state();
if(state)
{
machine().save().dispatch_presave();
return state->state_int(entry.index());
}
return 0;
},
[this](device_state_entry &entry, uint64_t val) {
device_state_interface *state = entry.parent_state();
if(state)
{
state->set_state_int(entry.index(), val);
machine().save().dispatch_presave();
}
}),
"is_visible", &device_state_entry::visible,
"is_divider", &device_state_entry::divider);
/* machine:memory()
* memory.banks[] - table of memory banks
* memory.regions[] - table of memory regions
* memory.shares[] - table of memory shares
*/
sol().registry().new_usertype<memory_manager>("memory", "new", sol::no_constructor,
"banks", sol::property([this](memory_manager &mm) {
sol::table table = sol().create_table();
for (auto &bank : mm.banks())
table[bank.second->tag()] = bank.second.get();
return table;
}),
"regions", sol::property([this](memory_manager &mm) {
sol::table table = sol().create_table();
for (auto &region : mm.regions())
table[region.second->name()] = region.second.get();
return table;
}),
"shares", sol::property([this](memory_manager &mm) {
sol::table table = sol().create_table();
for (auto &share : mm.shares())
table[share.first] = share.second.get();
return table;
}));
sol().registry().new_usertype<memory_region>("region", "new", sol::no_constructor,
"read_i8", &region_read<int8_t>,
"read_u8", &region_read<uint8_t>,
"read_i16", &region_read<int16_t>,
"read_u16", &region_read<uint16_t>,
"read_i32", &region_read<int32_t>,
"read_u32", &region_read<uint32_t>,
"read_i64", &region_read<int64_t>,
"read_u64", &region_read<uint64_t>,
"write_i8", &region_write<int8_t>,
"write_u8", &region_write<uint8_t>,
"write_i16", &region_write<int16_t>,
"write_u16", &region_write<uint16_t>,
"write_i32", &region_write<int32_t>,
"write_u32", &region_write<uint32_t>,
"write_i64", &region_write<int64_t>,
"write_u64", &region_write<uint64_t>,
"size", sol::property(&memory_region::bytes));
sol().registry().new_usertype<memory_share>("share", "new", sol::no_constructor,
"read_i8", &share_read<int8_t>,
"read_u8", &share_read<uint8_t>,
"read_i16", &share_read<int16_t>,
"read_u16", &share_read<uint16_t>,
"read_i32", &share_read<int32_t>,
"read_u32", &share_read<uint32_t>,
"read_i64", &share_read<int64_t>,
"read_u64", &share_read<uint64_t>,
"write_i8", &share_write<int8_t>,
"write_u8", &share_write<uint8_t>,
"write_i16", &share_write<int16_t>,
"write_u16", &share_write<uint16_t>,
"write_i32", &share_write<int32_t>,
"write_u32", &share_write<uint32_t>,
"write_i64", &share_write<int64_t>,
"write_u64", &share_write<uint64_t>,
"size", sol::property(&memory_share::bytes));
/* machine:output()
* output:set_value(name, val) - set output name to val
* output:set_indexed_value(index, val) - set output index to val
* output:get_value(name) - get output name value
* output:get_indexed_value(index) - get output index value
* output:name_to_id(name) - get index for name
* output:id_to_name(index) - get name for index
*/
sol().registry().new_usertype<output_manager>("output", "new", sol::no_constructor,
"set_value", &output_manager::set_value,
"set_indexed_value", [](output_manager &o, char const *basename, int index, int value) { o.set_value(util::string_format("%s%d", basename, index).c_str(), value); },
"get_value", &output_manager::get_value,
"get_indexed_value", [](output_manager &o, char const *basename, int index) { return o.get_value(util::string_format("%s%d", basename, index).c_str()); },
"name_to_id", &output_manager::name_to_id,
"id_to_name", &output_manager::id_to_name);
/* machine.images[] - images are floppy/cart/cdrom/tape/hdd etc, otherwise this should be self explanatory
*/
sol().registry().new_usertype<device_image_interface>("image", "new", sol::no_constructor,
"exists", &device_image_interface::exists,
"filename", &device_image_interface::filename,
"longname", &device_image_interface::longname,
"manufacturer", &device_image_interface::manufacturer,
"year", &device_image_interface::year,
"software_list_name", &device_image_interface::software_list_name,
"software_parent", sol::property([](device_image_interface &di) { const software_info *si = di.software_entry(); return si ? si->parentname() : ""; }),
"image_type_name", &device_image_interface::image_type_name,
"load", &device_image_interface::load,
"unload", &device_image_interface::unload,
"crc", &device_image_interface::crc,
"device", sol::property(static_cast<const device_t &(device_image_interface::*)() const>(&device_image_interface::device)),
"is_readable", sol::property(&device_image_interface::is_readable),
"is_writeable", sol::property(&device_image_interface::is_writeable),
"is_creatable", sol::property(&device_image_interface::is_creatable),
"is_reset_on_load", sol::property(&device_image_interface::is_reset_on_load));
sol().registry().new_usertype<mame_machine_manager>("manager", "new", sol::no_constructor,
"machine", &machine_manager::machine,
"options", [](mame_machine_manager &m) { return static_cast<core_options *>(&m.options()); },
"plugins", [](mame_machine_manager &m) { return static_cast<core_options *>(&m.plugins()); },
"ui", &mame_machine_manager::ui);
sol()["manager"] = std::ref(*mame_machine_manager::instance());
sol()["mame_manager"] = std::ref(*mame_machine_manager::instance());
}
//-------------------------------------------------
// frame_hook - called at each frame refresh, used to draw a HUD
//-------------------------------------------------
bool lua_engine::frame_hook()
{
return execute_function("LUA_ON_FRAME_DONE");
}
//-------------------------------------------------
// close - close and cleanup of lua engine
//-------------------------------------------------
void lua_engine::close()
{
m_sol_state.reset();
if (m_lua_state)
{
lua_settop(m_lua_state, 0); /* clear stack */
lua_close(m_lua_state);
m_lua_state = nullptr;
}
}
void lua_engine::resume(void *ptr, int nparam)
{
lua_rawgeti(m_lua_state, LUA_REGISTRYINDEX, nparam);
lua_State *L = lua_tothread(m_lua_state, -1);
lua_pop(m_lua_state, 1);
int stat = lua_resume(L, nullptr, 0);
if((stat != LUA_OK) && (stat != LUA_YIELD))
{
osd_printf_error("[LUA ERROR] in resume: %s\n", lua_tostring(L, -1));
lua_pop(L, 1);
}
luaL_unref(m_lua_state, LUA_REGISTRYINDEX, nparam);
}
void lua_engine::run(sol::load_result res)
{
if(res.valid())
{
auto ret = (res.get<sol::protected_function>())();
if(!ret.valid())
{
sol::error err = ret;
osd_printf_error("[LUA ERROR] in run: %s\n", err.what());
}
}
else
osd_printf_error("[LUA ERROR] %d loading Lua script\n", (int)res.status());
}
//-------------------------------------------------
// execute - load and execute script
//-------------------------------------------------
void lua_engine::load_script(const char *filename)
{
run(sol().load_file(filename));
}
//-------------------------------------------------
// execute_string - execute script from string
//-------------------------------------------------
void lua_engine::load_string(const char *value)
{
run(sol().load(value));
}