if (ret == 1) {
Theme *theme = get_theme_updata(L);
LiveInputWrapper **live_input = (LiveInputWrapper **)lua_touserdata(L, -1);
- theme->register_video_signal_connection(*live_input, *capture);
+ theme->register_video_signal_connection(chain, *live_input, *capture);
}
return ret;
}
if (ret == 1) {
Theme *theme = get_theme_updata(L);
LiveInputWrapper **live_input = (LiveInputWrapper **)lua_touserdata(L, -1);
- theme->register_html_signal_connection(*live_input, *capture);
+ theme->register_html_signal_connection(chain, *live_input, *capture);
}
return ret;
}
return 0;
}
+int VideoInput_disconnect(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ FFmpegCapture **video_input = (FFmpegCapture **)luaL_checkudata(L, 1, "VideoInput");
+ (*video_input)->disconnect();
+ return 0;
+}
+
int VideoInput_change_rate(lua_State* L)
{
assert(lua_gettop(L) == 2);
return 0;
}
+int HTMLInput_resize(lua_State* L)
+{
+ assert(lua_gettop(L) == 3);
+ CEFCapture **video_input = (CEFCapture **)luaL_checkudata(L, 1, "HTMLInput");
+ unsigned width = lrint(luaL_checknumber(L, 2));
+ unsigned height = lrint(luaL_checknumber(L, 3));
+ (*video_input)->resize(width, height);
+ return 0;
+}
+
int HTMLInput_get_signal_num(lua_State* L)
{
assert(lua_gettop(L) == 1);
const luaL_Reg VideoInput_funcs[] = {
{ "new", VideoInput_new },
{ "rewind", VideoInput_rewind },
+ { "disconnect", VideoInput_disconnect },
{ "change_rate", VideoInput_change_rate },
{ "get_signal_num", VideoInput_get_signal_num },
{ NULL, NULL }
{ "reload", HTMLInput_reload },
{ "set_max_fps", HTMLInput_set_max_fps },
{ "execute_javascript_async", HTMLInput_execute_javascript_async },
+ { "resize", HTMLInput_resize },
{ "get_signal_num", HTMLInput_get_signal_num },
#endif
{ NULL, NULL }
L = luaL_newstate();
luaL_openlibs(L);
- register_constants();
- register_class("EffectChain", EffectChain_funcs);
- register_class("LiveInputWrapper", LiveInputWrapper_funcs);
- register_class("ImageInput", ImageInput_funcs);
- register_class("VideoInput", VideoInput_funcs);
- register_class("HTMLInput", HTMLInput_funcs);
- register_class("WhiteBalanceEffect", WhiteBalanceEffect_funcs);
- register_class("ResampleEffect", ResampleEffect_funcs);
- register_class("PaddingEffect", PaddingEffect_funcs);
- register_class("IntegralPaddingEffect", IntegralPaddingEffect_funcs);
- register_class("OverlayEffect", OverlayEffect_funcs);
- register_class("ResizeEffect", ResizeEffect_funcs);
- register_class("MultiplyEffect", MultiplyEffect_funcs);
- register_class("MixEffect", MixEffect_funcs);
- register_class("InputStateInfo", InputStateInfo_funcs);
- register_class("ThemeMenu", ThemeMenu_funcs);
-
- // Run script. Search through all directories until we find a file that will load
+ // Search through all directories until we find a file that will load
// (as in, does not return LUA_ERRFILE); then run it. We store load errors
// from all the attempts, and show them once we know we can't find any of them.
lua_settop(L, 0);
real_search_dirs = search_dirs;
}
+ string path;
+ int theme_code_ref;
for (const string &dir : real_search_dirs) {
- string path;
if (dir.empty()) {
path = filename;
} else {
}
int err = luaL_loadfile(L, path.c_str());
if (err == 0) {
- // Success; actually call the code.
- if (lua_pcall(L, 0, LUA_MULTRET, 0)) {
- fprintf(stderr, "Error when running %s: %s\n", path.c_str(), lua_tostring(L, -1));
- exit(1);
- }
+ // Save the theme for when we're actually going to run it
+ // (we need to set up the right environment below first,
+ // and we couldn't do that before, because we didn't know the
+ // path to put in Nageru.THEME_PATH).
+ theme_code_ref = luaL_ref(L, LUA_REGISTRYINDEX);
+ assert(lua_gettop(L) == 0);
+
success = true;
break;
}
}
assert(lua_gettop(L) == 0);
+ // Make sure the path exposed to the theme (as Nageru.THEME_PATH;
+ // can be useful for locating files when talking to CEF) is absolute.
+ // In a sense, it would be nice if realpath() had a mode not to
+ // resolve symlinks, but it doesn't, so we only call it if we don't
+ // already have an absolute path (which may leave ../ elements etc.).
+ if (path[0] == '/') {
+ theme_path = path;
+ } else {
+ char *absolute_theme_path = realpath(path.c_str(), nullptr);
+ theme_path = absolute_theme_path;
+ free(absolute_theme_path);
+ }
+
+ // Set up the API we provide.
+ register_constants();
+ register_class("EffectChain", EffectChain_funcs);
+ register_class("LiveInputWrapper", LiveInputWrapper_funcs);
+ register_class("ImageInput", ImageInput_funcs);
+ register_class("VideoInput", VideoInput_funcs);
+ register_class("HTMLInput", HTMLInput_funcs);
+ register_class("WhiteBalanceEffect", WhiteBalanceEffect_funcs);
+ register_class("ResampleEffect", ResampleEffect_funcs);
+ register_class("PaddingEffect", PaddingEffect_funcs);
+ register_class("IntegralPaddingEffect", IntegralPaddingEffect_funcs);
+ register_class("OverlayEffect", OverlayEffect_funcs);
+ register_class("ResizeEffect", ResizeEffect_funcs);
+ register_class("MultiplyEffect", MultiplyEffect_funcs);
+ register_class("MixEffect", MixEffect_funcs);
+ register_class("InputStateInfo", InputStateInfo_funcs);
+ register_class("ThemeMenu", ThemeMenu_funcs);
+
+ // Now actually run the theme to get everything set up.
+ lua_rawgeti(L, LUA_REGISTRYINDEX, theme_code_ref);
+ luaL_unref(L, LUA_REGISTRYINDEX, theme_code_ref);
+ if (lua_pcall(L, 0, 0, 0)) {
+ fprintf(stderr, "Error when running %s: %s\n", path.c_str(), lua_tostring(L, -1));
+ exit(1);
+ }
+ assert(lua_gettop(L) == 0);
+
// Ask it for the number of channels.
num_channels = call_num_channels(L);
}
void Theme::register_constants()
{
// Set Nageru.VIDEO_FORMAT_BGRA = bmusb::PixelFormat_8BitBGRA, etc.
- const vector<pair<string, int>> constants = {
+ const vector<pair<string, int>> num_constants = {
{ "VIDEO_FORMAT_BGRA", bmusb::PixelFormat_8BitBGRA },
{ "VIDEO_FORMAT_YCBCR", bmusb::PixelFormat_8BitYCbCrPlanar },
};
+ const vector<pair<string, string>> str_constants = {
+ { "THEME_PATH", theme_path },
+ };
lua_newtable(L); // t = {}
- for (const pair<string, int> &constant : constants) {
+ for (const pair<string, int> &constant : num_constants) {
lua_pushstring(L, constant.first.c_str());
lua_pushinteger(L, constant.second);
lua_settable(L, 1); // t[key] = value
}
+ for (const pair<string, string> &constant : str_constants) {
+ lua_pushstring(L, constant.first.c_str());
+ lua_pushstring(L, constant.second.c_str());
+ lua_settable(L, 1); // t[key] = value
+ }
lua_setglobal(L, "Nageru"); // Nageru = t
assert(lua_gettop(L) == 0);
exit(1);
}
- chain.chain = (EffectChain *)luaL_testudata(L, -2, "EffectChain");
- if (chain.chain == nullptr) {
+ EffectChain *effect_chain = (EffectChain *)luaL_testudata(L, -2, "EffectChain");
+ if (effect_chain == nullptr) {
fprintf(stderr, "get_chain() for chain number %d did not return an EffectChain\n",
num);
exit(1);
}
+ chain.chain = effect_chain;
if (!lua_isfunction(L, -1)) {
fprintf(stderr, "Argument #-1 should be a function\n");
exit(1);
lua_pop(L, 2);
assert(lua_gettop(L) == 0);
- chain.setup_chain = [this, funcref, input_state]{
+ chain.setup_chain = [this, funcref, input_state, effect_chain]{
unique_lock<mutex> lock(m);
assert(this->input_state == nullptr);
if (lua_pcall(L, 0, 0, 0) != 0) {
fprintf(stderr, "error running chain setup callback: %s\n", lua_tostring(L, -1));
exit(1);
- }
+ }
assert(lua_gettop(L) == 0);
+ // The theme can't (or at least shouldn't!) call connect_signal() on
+ // each FFmpeg or CEF input, so we'll do it here.
+ if (video_signal_connections.count(effect_chain)) {
+ for (const VideoSignalConnection &conn : video_signal_connections[effect_chain]) {
+ conn.wrapper->connect_signal_raw(conn.source->get_card_index(), input_state);
+ }
+ }
+#ifdef HAVE_CEF
+ if (html_signal_connections.count(effect_chain)) {
+ for (const CEFSignalConnection &conn : html_signal_connections[effect_chain]) {
+ conn.wrapper->connect_signal_raw(conn.source->get_card_index(), input_state);
+ }
+ }
+#endif
+
this->input_state = nullptr;
};
projects / nageru / blobdiff