extern void finalize_store_wrapper (struct dt_imageio_module_storage_t *self, dt_imageio_module_data_t *data)
{
lua_State *L =darktable.lua_state;
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_storages");
lua_getfield(L,-1,self->plugin_name);
lua_getfield(L,-1,"finalize_store");
if(lua_isnil(L,-1)) {
lua_pop(L,3);
return;
}
luaA_push_typeid(L,self->parameter_lua_type,&data);
lua_storage_t *d = (lua_storage_t*) data;
GList* imgids =d->imgids;
GList* file_names = d->file_names;
lua_newtable(L);
while(imgids) {
luaA_push(L,dt_lua_image_t,&(imgids->data));
lua_pushstring(L,file_names->data);
lua_settable(L,-3);
imgids = g_list_next(imgids);
file_names = g_list_next(file_names);
}
lua_pushlightuserdata(L,data);
lua_gettable(L,LUA_REGISTRYINDEX);
dt_lua_do_chunk(L,3,0);
lua_pop(L,2);
}
static int trigger_keyed_event(lua_State * L) {
int nargs = luaL_checknumber(L,-1);
const char* evt_name = luaL_checkstring(L,-2);
lua_pop(L,2);
// -1..-n are our args
const int top_marker=lua_gettop(L);
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_event_data");
lua_getfield(L,-1,evt_name);
if(lua_isnil(L,-1)) {
lua_pop(L,2+nargs);
return 0;
}
const char*key=luaL_checkstring(L,-nargs-2); // first arg is the key itself
lua_getfield(L,-1,key);
if(lua_isnil(L,-1)) {
lua_pop(L,2+nargs);
return 0;
}
// prepare the call
lua_insert(L,top_marker-nargs+1);
lua_pushstring(L,evt_name);// param 1 is the event
lua_insert(L,top_marker-nargs+2);
lua_pop(L,2);
return dt_lua_do_chunk(L,nargs+1,0);
}
static int trigger_multiinstance_event(lua_State * L) {
int nargs = luaL_checknumber(L,-1);
const char* evt_name = luaL_checkstring(L,-2);
lua_pop(L,2);
// -1..-n are our args
const int top_marker=lua_gettop(L);
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_event_data");
lua_getfield(L,-1,evt_name);
if(lua_isnil(L,-1)) {
lua_pop(L,2+nargs);
return 0;
}
lua_remove(L,-2);
lua_pushnil(L); /* first key */
int nresult = 0;
while (lua_next(L, top_marker +1) != 0) {
/* uses 'key' (at index -2) and 'value' (at index -1) value is the function to call*/
// prepare the call
lua_pushstring(L,evt_name);// param 1 is the event
for(int i = 0 ; i<nargs ;i++) { // event dependant parameters
lua_pushvalue(L, top_marker -nargs +1 +i);
}
nresult += dt_lua_do_chunk(L,nargs+1,0);
}
return nresult;
}
static int trigger_multiinstance_event(lua_State * L,const char* evt_name, int nargs,int nresults) {
// -1..-n are our args
const int top_marker=lua_gettop(L);
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_event_data");
lua_getfield(L,-1,evt_name);
if(lua_isnil(L,-1)) {
lua_pop(L,2+nargs);
if(nresults == LUA_MULTRET) return 0;
for(int i = 0 ; i < nresults ; i++) lua_pushnil(L);
return nresults;
}
lua_remove(L,-2);
lua_pushnil(L); /* first key */
int result = 0;
while (lua_next(L, top_marker +1) != 0) {
/* uses 'key' (at index -2) and 'value' (at index -1) value is the function to call*/
// prepare the call
lua_pushstring(L,evt_name);// param 1 is the event
for(int i = 0 ; i<nargs ;i++) { // event dependant parameters
lua_pushvalue(L, top_marker -nargs +1 +i);
}
int tmp_result = dt_lua_do_chunk(L,nargs+1,nresults);
if(tmp_result > 0) {
lua_pushvalue(L,-(tmp_result+1));//push index on top
lua_remove(L,-(tmp_result+2));//remove old index still in stack
}
result += tmp_result;
}
return result;
}
static int trigger_keyed_event(lua_State * L,const char* evt_name, int nargs,int nresults) {
// -1..-n are our args
const int top_marker=lua_gettop(L);
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_event_data");
lua_getfield(L,-1,evt_name);
if(lua_isnil(L,-1)) {
lua_pop(L,2+nargs);
if(nresults == LUA_MULTRET) return 0;
for(int i = 0 ; i < nresults ; i++) lua_pushnil(L);
return nresults;
}
const char*key=luaL_checkstring(L,-nargs-2); // first arg is the key itself
lua_getfield(L,-1,key);
if(lua_isnil(L,-1)) {
lua_pop(L,2+nargs);
if(nresults == LUA_MULTRET) return 0;
for(int i = 0 ; i < nresults ; i++) lua_pushnil(L);
return nresults;
}
// prepare the call
lua_insert(L,top_marker-nargs+1);
lua_pushstring(L,evt_name);// param 1 is the event
lua_insert(L,top_marker-nargs+2);
lua_pop(L,2);
return dt_lua_do_chunk(L,nargs+1,nresults);
}
gboolean dt_lua_gtk_wrap_callback(gpointer data)
{
gtk_wrap_communication *communication = (gtk_wrap_communication*)data;
g_mutex_lock(&communication->end_mutex);
communication->retval = dt_lua_do_chunk(communication->L,lua_gettop(communication->L)-1,LUA_MULTRET);
g_cond_signal(&communication->end_cond);
g_mutex_unlock(&communication->end_mutex);
return false;
}
int dt_lua_dostring(lua_State *L,const char* command)
{
if(luaL_loadstring(L, command))
{
dt_print(DT_DEBUG_LUA,"LUA ERROR %s\n",lua_tostring(L,-1));
lua_pop(L,1);
return -1;
}
return dt_lua_do_chunk(L,0,0);
}
int dt_lua_dofile(lua_State *L,const char* filename)
{
if(luaL_loadfile(L, filename))
{
dt_print(DT_DEBUG_LUA,"LUA ERROR %s\n",lua_tostring(L,-1));
lua_pop(L,1);
return -1;
}
return dt_lua_do_chunk(L,0,0);
}
static int store_wrapper(struct dt_imageio_module_storage_t *self,struct dt_imageio_module_data_t *self_data, const int imgid, dt_imageio_module_format_t *format, dt_imageio_module_data_t *fdata, const int num, const int total, const gboolean high_quality)
{
/* construct a temporary file name */
char tmpdir[DT_MAX_PATH_LEN]= {0};
gboolean from_cache = FALSE;
dt_loc_get_tmp_dir (tmpdir,DT_MAX_PATH_LEN);
char dirname[DT_MAX_PATH_LEN];
dt_image_full_path(imgid, dirname, DT_MAX_PATH_LEN, &from_cache);
const gchar * filename = g_path_get_basename( dirname );
gchar * end = g_strrstr( filename,".")+1;
g_strlcpy( end, format->extension(fdata), sizeof(dirname)-(end-dirname));
gchar* complete_name = g_build_filename( tmpdir, filename, (char *)NULL );
if(dt_imageio_export(imgid, complete_name, format, fdata, high_quality) != 0)
{
fprintf(stderr, "[%s] could not export to file: `%s'!\n", self->name(self),complete_name);
g_free(complete_name);
return 1;
}
lua_storage_t *d = (lua_storage_t*) self_data;
d->imgids = g_list_prepend(d->imgids,(void*)(intptr_t)imgid);
d->file_names = g_list_prepend(d->file_names,complete_name);
lua_State *L =darktable.lua_state;
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_storages");
lua_getfield(L,-1,self->plugin_name);
lua_getfield(L,-1,"store");
if(lua_isnil(L,-1)) {
lua_pop(L,3);
return 1;
}
luaA_push_typeid(L,self->parameter_lua_type,self_data);
luaA_push(L,dt_lua_image_t,&imgid);
luaA_push_typeid(L,format->parameter_lua_type,fdata);
lua_pushstring(L,complete_name);
lua_pushnumber(L,num);
lua_pushnumber(L,total);
lua_pushboolean(L,high_quality);
lua_pushlightuserdata(L,self_data);
lua_gettable(L,LUA_REGISTRYINDEX);
dt_lua_do_chunk(L,8,1);
int result = lua_toboolean(L,-1);
lua_pop(L,2);
return result;
}
int dt_lua_dostring(lua_State *L, const char *command, int nargs, int nresults)
{
int load_result = luaL_loadstring(L, command);
if(load_result != LUA_OK)
{
const char *error_msg = lua_tostring(L, -1);
luaL_traceback(L, L, error_msg, 0);
lua_remove(L, -2);
return load_result;
}
lua_insert(L, -(nargs + 1));
return dt_lua_do_chunk(L, nargs, nresults);
}
static int trigger_chained_event(lua_State * L,const char* evt_name, int nargs,int nresults) {
// -1..-n a
if(nargs<nresults)
dt_print(DT_DEBUG_LUA,"error chained parameters must have less results than args (args %d results %d\n",nargs,nresults);
int arg_top=lua_gettop(L);
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_event_data");
lua_getfield(L,-1,evt_name);
if(lua_isnil(L,-1)) {
lua_pop(L,2); // remove what we built
for(int i = 0 ; i < nargs - nresults ; i++) lua_remove(L,-(nresults+1));
return nresults;
}
lua_remove(L,-2);
// copy variable args on the top of the stack
for(int i = 0 ; i< nresults; i++) {
lua_pushvalue(L,arg_top -nresults +i+1);
}
lua_pushnil(L); /* first key */
while (lua_next(L, -(nresults+2)) != 0) {
/* stack at this point
- all args from the function entry
- table with all the functions to chain
- variable args at this point
- "key" the index we just looked into
- "value" function to call
*/
// remove the loop index
const int loop_index=luaL_checkint(L,-2);
lua_remove(L,-2);
// move the function below the variable args
lua_insert(L,-(nresults+1)); // move fn call below args
//move the evt name just above the function
lua_pushstring(L,evt_name);// param 1 is the event
lua_insert(L,-(nresults+1)); // move evt name below params
// add all fixed args at their final place
for(int i = 0; i < nargs - nresults ; i++) {
lua_pushvalue(L,arg_top -nargs+i+1); // copy all invariant args at the top
lua_insert(L,-(nresults+1));// move them at their final place
}
/* uses 'key' (at index -2) and 'value' (at index -1) */
// prepare the call
dt_lua_do_chunk(L,nargs+1,nresults);
lua_pushinteger(L,loop_index);
}
for(int i=0; i< nargs+1 ; i++)
lua_remove(L,-nresults -1); //remove all args that are below the results and the fn table
return nresults;
}
int dt_lua_do_chunk_raise(lua_State *L, int nargs, int nresults)
{
int orig_top = lua_gettop(L);
int thread_result = dt_lua_do_chunk(L, nargs, nresults);
if(thread_result == LUA_OK)
{
return lua_gettop(L) - (orig_top -nargs -1);
}
else
{
const char *message = lua_tostring(L, -1);
return luaL_error(L, message);
}
}
static int32_t lua_job_canceled_job(dt_job_t *job)
{
dt_progress_t *progress = dt_control_job_get_params(job);
lua_State * L = darktable.lua_state.state;
gboolean has_lock = dt_lua_lock();
luaA_push(L, dt_lua_backgroundjob_t, &progress);
lua_getuservalue(L, -1);
lua_getfield(L, -1, "cancel_callback");
lua_pushvalue(L, -3);
dt_lua_do_chunk(L, 1, 0);
lua_pop(L, 2);
dt_lua_unlock(has_lock);
return 0;
}
static gboolean poll_events(gpointer data)
{
int my_id = GPOINTER_TO_INT(data);
lua_getfield(darktable.lua_state,LUA_REGISTRYINDEX,"dt_lua_delayed_events");
lua_rawgeti(darktable.lua_state,-1,my_id);
if(lua_isnoneornil(darktable.lua_state,-1)) {
lua_pop(darktable.lua_state,2);
luaL_error(darktable.lua_state,"Unknown thread was called for delay action");
return FALSE;
}
lua_State * L = lua_tothread(darktable.lua_state,-1);
dt_lua_do_chunk(L,lua_gettop(L) -1,0);
/* L is finished, remove it from the stack */
luaL_unref(darktable.lua_state,-2,my_id);
lua_pop(darktable.lua_state,2);
return FALSE;
}
static void run_event(const char*event,int nargs) {
lua_getfield(darktable.lua_state.state,LUA_REGISTRYINDEX,"dt_lua_event_list");
if(lua_isnil(darktable.lua_state.state,-1)) {// events have been disabled
lua_settop(darktable.lua_state.state,0);
return;
}
lua_getfield(darktable.lua_state.state,-1,event);
event_handler * handler = lua_touserdata(darktable.lua_state.state,-1);
lua_pop(darktable.lua_state.state,2);
if(!handler->in_use) {
lua_pop(darktable.lua_state.state,nargs);
return;
}
lua_pushcfunction(darktable.lua_state.state,handler->on_event);
lua_insert(darktable.lua_state.state,-nargs -1);
lua_pushstring(darktable.lua_state.state,event);
lua_pushnumber(darktable.lua_state.state,nargs);
dt_lua_do_chunk(darktable.lua_state.state,nargs+2,0);
}
void dt_lua_widget_trigger_callback_glist(lua_State*L,lua_widget object,const char* name,GList*extra)
{
luaA_push_type(L,object->type->associated_type,&object);
lua_getuservalue(L,-1);
lua_getfield(L,-1,name);
if(! lua_isnil(L,-1)) {
lua_pushvalue(L,-3);
GList* cur_elt = extra;
int nargs = 1;
while(cur_elt) {
const char* next_type = cur_elt->data;
cur_elt = g_list_next(cur_elt);
luaA_push_type(L,luaA_type_find(L,next_type),&cur_elt->data);
nargs++;
cur_elt = g_list_next(cur_elt);
}
dt_lua_do_chunk(L,nargs,0);
}
dt_lua_redraw_screen();
g_list_free(extra);
lua_pop(L,2);
}
static int default_supported_wrapper (struct dt_imageio_module_storage_t *self, struct dt_imageio_module_format_t *format)
{
lua_State *L =darktable.lua_state;
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_storages");
lua_getfield(L,-1,self->plugin_name);
lua_getfield(L,-1,"supported");
if(lua_isnil(L,-1)) {
lua_pop(L,3);
return true;
}
dt_imageio_module_data_t *sdata = self->get_params(self);
dt_imageio_module_data_t *fdata = format->get_params(format);
luaA_push_typeid(L,self->parameter_lua_type,sdata);
luaA_push_typeid(L,format->parameter_lua_type,fdata);
format->free_params(format,fdata);
self->free_params(self,sdata);
dt_lua_do_chunk(L,2,1);
int result = lua_toboolean(L,-1);
lua_pop(L,2);
return result;
};
int dt_lua_do_chunk_silent(lua_State *L, int nargs, int nresults)
{
int orig_top = lua_gettop(L);
int thread_result = dt_lua_do_chunk(L, nargs, nresults);
if(thread_result == LUA_OK)
{
return lua_gettop(L) - (orig_top -nargs -1);
}
if(darktable.unmuted & DT_DEBUG_LUA)
{
dt_print(DT_DEBUG_LUA, "LUA ERROR : %s", lua_tostring(L, -1));
}
lua_pop(L, 1); // remove the error message
if(nresults != LUA_MULTRET)
{
for(int i = 0; i < nresults; i++)
{
lua_pushnil(L);
}
return nresults;
}
return 0;
}
static int register_storage(lua_State *L)
{
lua_settop(L,5);
lua_getfield(L,LUA_REGISTRYINDEX,"dt_lua_storages");
lua_newtable(L);
dt_imageio_module_storage_t * storage = malloc(sizeof(dt_imageio_module_storage_t));
memcpy(storage,&ref_storage,sizeof(dt_imageio_module_storage_t));
storage->gui_data = malloc(sizeof(lua_storage_gui_t));
lua_storage_gui_t * data = storage->gui_data;
const char * plugin_name = luaL_checkstring(L,1);
lua_pushvalue(L,1);
lua_setfield(L,-2,"plugin_name");
g_strlcpy(storage->plugin_name,plugin_name,sizeof(storage->plugin_name));
const char * name = luaL_checkstring(L,2);
lua_pushvalue(L,2);
lua_setfield(L,-2,"name");
data->name = strdup(name);
data->supported_formats = NULL;
if(!lua_isnoneornil(L,3)) {
luaL_checktype(L,3,LUA_TFUNCTION);
lua_pushvalue(L,3);
lua_setfield(L,-2,"store");
}
if(lua_isnil(L,4) )
{
storage->finalize_store = NULL;
}
else
{
luaL_checktype(L,4,LUA_TFUNCTION);
lua_pushvalue(L,4);
lua_setfield(L,-2,"finalize_store");
}
if(!lua_isnoneornil(L,5)) {
luaL_checktype(L,5,LUA_TFUNCTION);
lua_pushvalue(L,5);
lua_setfield(L,-2,"supported");
}
lua_setfield(L,-2,plugin_name);
char tmp[1024];
snprintf(tmp,1024,"dt_imageio_module_data_pseudo_%s",storage->plugin_name);
luaA_Type type_id = luaA_type_add(tmp,storage->params_size(storage));
storage->parameter_lua_type = dt_lua_init_type_typeid(darktable.lua_state.state,type_id);
luaA_struct_typeid(darktable.lua_state.state,type_id);
dt_lua_register_storage_typeid(darktable.lua_state.state,storage,type_id);
GList *it = darktable.imageio->plugins_format;
if(!lua_isnoneornil(L,5)) {
while(it)
{
lua_pushvalue(L,5);
dt_imageio_module_format_t *format = (dt_imageio_module_format_t *)it->data;
dt_imageio_module_data_t *sdata = storage->get_params(storage);
dt_imageio_module_data_t *fdata = format->get_params(format);
luaA_push_typeid(L,storage->parameter_lua_type,sdata);
luaA_push_typeid(L,format->parameter_lua_type,fdata);
format->free_params(format,fdata);
storage->free_params(storage,sdata);
dt_lua_do_chunk(L,2,1);
int result = lua_toboolean(L,-1);
lua_pop(L,1);
if(result) {
data->supported_formats = g_list_prepend(data->supported_formats,format);
}
it = g_list_next(it);
}
} else {
// all formats are supported
while(it)
{
dt_imageio_module_format_t *format = (dt_imageio_module_format_t *)it->data;
data->supported_formats = g_list_prepend(data->supported_formats,format);
it = g_list_next(it);
}
}
dt_imageio_insert_storage(storage);
return 0;
}
int dt_lua_protect_call(lua_State *L,lua_CFunction func)
{
lua_pushcfunction(L,func);
return dt_lua_do_chunk(L,0,0);
}
