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#include <lua.h>
#include <lauxlib.h>
#include "link/extensions/abl_link/include/abl_link.h"
#if LUA_VERSION_NUM > 501
#define luax_len(L, i) (int) lua_rawlen(L, i)
#define luax_register(L, f) luaL_setfuncs(L, f, 0)
#else
#define luax_len(L, i) (int) lua_objlen(L, i)
#define luax_register(L, f) luaL_register(L, NULL, f)
#define LUA_RIDX_MAINTHREAD 1
#endif
static int l_create_link(lua_State* L) {
double bpm = luaL_checknumber(L, 1);
abl_link* link = (abl_link*)lua_newuserdata(L, sizeof(abl_link));
*link = abl_link_create(bpm);
luaL_getmetatable(L, "abletonlink.link");
lua_setmetatable(L, -2);
return 1;
}
static abl_link checklink(lua_State *L) {
abl_link* link = (abl_link*)luaL_checkudata(L, 1, "abletonlink.link");
luaL_argcheck(L, link != NULL, 1, "`link' expected");
luaL_argcheck(L, link->impl != NULL, 1, "`link' is already destroyed");
return *link;
}
static int l_destroy_link(lua_State* L) {
abl_link* link = (abl_link*)luaL_checkudata(L, 1, "abletonlink.link");
luaL_argcheck(L, link != NULL, 1, "`link' expected");
if (link->impl) {
abl_link_destroy(*link);
link->impl = NULL;
}
return 0;
}
static int l_is_enabled(lua_State* L) {
abl_link link = checklink(L);
bool enabled = abl_link_is_enabled(link);
lua_pushboolean(L, enabled);
return 1;
}
static int l_enable(lua_State* L) {
abl_link link = checklink(L);
bool enable = lua_isnoneornil(L, 2) ? true : lua_toboolean(L, 2);
abl_link_enable(link, enable);
return 0;
}
static int l_is_start_stop_sync_enabled(lua_State* L) {
abl_link link = checklink(L);
bool enabled = abl_link_is_start_stop_sync_enabled(link);
lua_pushboolean(L, enabled);
return 1;
}
static int l_enable_start_stop_sync(lua_State* L) {
abl_link link = checklink(L);
bool enable = lua_isnoneornil(L, 2) ? true : lua_toboolean(L, 2);
abl_link_enable_start_stop_sync(link, enable);
return 0;
}
static int l_num_peers(lua_State* L) {
abl_link link = checklink(L);
uint64_t peers = abl_link_num_peers(link);
lua_pushinteger(L, peers);
return 1;
}
static int l_clock_micros(lua_State* L) {
abl_link link = checklink(L);
int64_t micros = abl_link_clock_micros(link);
lua_pushinteger(L, micros);
return 1;
}
static const luaL_Reg abl_link_r[] = {
{ "destroy", l_destroy_link },
{ "is_enabled", l_is_enabled},
{ "enable", l_enable },
{ "is_start_stop_sync_enabled", l_is_start_stop_sync_enabled },
{ "enable_start_stop_sync", l_enable_start_stop_sync},
{ "num_peers", l_num_peers },
{ "clock_micros", l_clock_micros },
/*
{ "capture_audio_session_state", l_capture_audio_session_state },
{ "commit_audio_session_state", l_commit_audio_session_state },
{ "capture_app_session_state", l_capture_app_session_state },
{ "commit_app_session_state", l_commit_app_session_state },
*/
{ "__gc", l_destroy_link },
{ NULL, NULL },
};
static abl_link_session_state* checksessionstate(lua_State *L) {
void *ud = luaL_checkudata(L, 1, "abletonlink.session_state");
luaL_argcheck(L, ud != NULL, 1, "`session_state' expected");
return (abl_link_session_state*)ud;
}
static int l_destroy_session_state(lua_State* L) {
abl_link_session_state* state = checksessionstate(L);
if (state->impl) {
abl_link_destroy_session_state(*state);
state->impl = NULL;
}
return 0;
}
static const luaL_Reg abl_link_session_state_r[] = {
{ "destroy", l_destroy_session_state },
/*
{ "tempo", l_tempo },
{ "set_tempo", l_set_tempo },
{ "beat_at_time", l_beat_at_time },
{ "phase_at_time", l_phase_at_time },
{ "time_at_beat", l_time_at_beat },
{ "request_beat_at_time", l_request_beat_at_time },
{ "force_beat_at_time", l_force_beat_at_time },
{ "is_playing", l_is_playing },
{ "set_is_playing", l_set_is_playing },
{ "time_for_is_playing", l_time_for_is_playing },
{ "request_beat_at_start_playing_time", l_request_beat_at_start_playing_time },
{ "set_is_playing_and_request_beat_at_time", l_set_is_playing_and_request_beat_at_time },
*/
{ "__gc", l_destroy_session_state },
{ NULL, NULL },
};
static const luaL_Reg abletonlink[] = {
{ "create", l_create_link },
{ NULL, NULL },
};
int luaopen_abletonlink(lua_State* L) {
luaL_newmetatable(L, "abletonlink.link");
lua_getmetatable(L, -1);
// m.__index = m
lua_pushvalue(L, -1);
lua_setfield(L, -1, "__index");
// register
luax_register(L, abl_link_r);
lua_pop(L, 1);
luaL_newmetatable(L, "abletonlink.session_state");
lua_getmetatable(L, -1);
// m.__index = m
lua_pushvalue(L, -1);
lua_setfield(L, -1, "__index");
// register
luax_register(L, abl_link_session_state_r);
lua_pop(L, 1);
lua_newtable(L);
lua_pushstring(L, "v1.0.0");
lua_setfield(L, -2, "_VERSION");
luax_register(L, abletonlink);
return 1;
}
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