Allow controlling video mixing from MIDI events.

[nageru] / nageru / theme.cpp

diff --git a/nageru/theme.cpp b/nageru/theme.cpp
index c926dd4591a63180f36c77d3a45afb17cc39b407..ead38fa819e877fceee43ec32cf4aa52a183dc92 100644 (file)
--- a/nageru/theme.cpp
+++ b/nageru/theme.cpp
@@ -72,6 +72,8 @@ struct InputStateInfo {
        unsigned last_width[MAX_VIDEO_CARDS], last_height[MAX_VIDEO_CARDS];
        bool last_interlaced[MAX_VIDEO_CARDS], last_has_signal[MAX_VIDEO_CARDS], last_is_connected[MAX_VIDEO_CARDS];
        unsigned last_frame_rate_nom[MAX_VIDEO_CARDS], last_frame_rate_den[MAX_VIDEO_CARDS];
+       bool has_last_subtitle[MAX_VIDEO_CARDS];
+       std::string last_subtitle[MAX_VIDEO_CARDS];
 };
 
 InputStateInfo::InputStateInfo(const InputState &input_state)
@@ -93,6 +95,8 @@ InputStateInfo::InputStateInfo(const InputState &input_state)
                last_is_connected[signal_num] = userdata->last_is_connected;
                last_frame_rate_nom[signal_num] = userdata->last_frame_rate_nom;
                last_frame_rate_den[signal_num] = userdata->last_frame_rate_den;
+               has_last_subtitle[signal_num] = userdata->has_last_subtitle;
+               last_subtitle[signal_num] = userdata->last_subtitle;
        }
 }
 
@@ -100,7 +104,7 @@ class LuaRefWithDeleter {
 public:
        LuaRefWithDeleter(mutex *m, lua_State *L, int ref) : m(m), L(L), ref(ref) {}
        ~LuaRefWithDeleter() {
-               unique_lock<mutex> lock(*m);
+               lock_guard<mutex> lock(*m);
                luaL_unref(L, LUA_REGISTRYINDEX, ref);
        }
        int get() const { return ref; }
@@ -634,6 +638,20 @@ int InputStateInfo_get_frame_rate_den(lua_State* L)
        return 1;
 }
 
+int InputStateInfo_get_last_subtitle(lua_State* L)
+{
+       assert(lua_gettop(L) == 2);
+       InputStateInfo *input_state_info = get_input_state_info(L, 1);
+       Theme *theme = get_theme_updata(L);
+       int signal_num = theme->map_signal(luaL_checknumber(L, 2));
+       if (!input_state_info->has_last_subtitle[signal_num]) {
+               lua_pushnil(L);
+       } else {
+               lua_pushstring(L, input_state_info->last_subtitle[signal_num].c_str());
+       }
+       return 1;
+}
+
 int Effect_set_float(lua_State *L)
 {
        assert(lua_gettop(L) == 3);
@@ -829,6 +847,7 @@ const luaL_Reg InputStateInfo_funcs[] = {
        { "get_is_connected", InputStateInfo_get_is_connected },
        { "get_frame_rate_nom", InputStateInfo_get_frame_rate_nom },
        { "get_frame_rate_den", InputStateInfo_get_frame_rate_den },
+       { "get_last_subtitle", InputStateInfo_get_last_subtitle },
        { NULL, NULL }
 };
 
@@ -1217,11 +1236,11 @@ void Theme::register_class(const char *class_name, const luaL_Reg *funcs)
        assert(lua_gettop(L) == 0);
 }
 
-Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned height, InputState input_state) 
+Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned height, const InputState &input_state) 
 {
        Chain chain;
 
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        assert(lua_gettop(L) == 0);
        lua_getglobal(L, "get_chain");  /* function to be called */
        lua_pushnumber(L, num);
@@ -1252,7 +1271,7 @@ Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned he
        assert(lua_gettop(L) == 0);
 
        chain.setup_chain = [this, funcref, input_state, effect_chain]{
-               unique_lock<mutex> lock(m);
+               lock_guard<mutex> lock(m);
 
                assert(this->input_state == nullptr);
                this->input_state = &input_state;
@@ -1297,7 +1316,7 @@ Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned he
 
 string Theme::get_channel_name(unsigned channel)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_getglobal(L, "channel_name");
        lua_pushnumber(L, channel);
        if (lua_pcall(L, 1, 1, 0) != 0) {
@@ -1318,7 +1337,7 @@ string Theme::get_channel_name(unsigned channel)
 
 int Theme::get_channel_signal(unsigned channel)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_getglobal(L, "channel_signal");
        lua_pushnumber(L, channel);
        if (lua_pcall(L, 1, 1, 0) != 0) {
@@ -1334,7 +1353,7 @@ int Theme::get_channel_signal(unsigned channel)
 
 std::string Theme::get_channel_color(unsigned channel)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_getglobal(L, "channel_color");
        lua_pushnumber(L, channel);
        if (lua_pcall(L, 1, 1, 0) != 0) {
@@ -1356,7 +1375,7 @@ std::string Theme::get_channel_color(unsigned channel)
 
 bool Theme::get_supports_set_wb(unsigned channel)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_getglobal(L, "supports_set_wb");
        lua_pushnumber(L, channel);
        if (lua_pcall(L, 1, 1, 0) != 0) {
@@ -1372,7 +1391,7 @@ bool Theme::get_supports_set_wb(unsigned channel)
 
 void Theme::set_wb(unsigned channel, double r, double g, double b)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_getglobal(L, "set_wb");
        lua_pushnumber(L, channel);
        lua_pushnumber(L, r);
@@ -1388,7 +1407,7 @@ void Theme::set_wb(unsigned channel, double r, double g, double b)
 
 vector<string> Theme::get_transition_names(float t)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_getglobal(L, "get_transitions");
        lua_pushnumber(L, t);
        if (lua_pcall(L, 1, 1, 0) != 0) {
@@ -1414,7 +1433,7 @@ int Theme::map_signal(int signal_num)
                return -1 - signal_num;
        }
 
-       unique_lock<mutex> lock(map_m);
+       lock_guard<mutex> lock(map_m);
        if (signal_to_card_mapping.count(signal_num)) {
                return signal_to_card_mapping[signal_num];
        }
@@ -1444,14 +1463,14 @@ int Theme::map_signal(int signal_num)
 
 void Theme::set_signal_mapping(int signal_num, int card_num)
 {
-       unique_lock<mutex> lock(map_m);
+       lock_guard<mutex> lock(map_m);
        assert(card_num < int(num_cards));
        signal_to_card_mapping[signal_num] = card_num;
 }
 
 void Theme::transition_clicked(int transition_num, float t)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_getglobal(L, "transition_clicked");
        lua_pushnumber(L, transition_num);
        lua_pushnumber(L, t);
@@ -1465,7 +1484,7 @@ void Theme::transition_clicked(int transition_num, float t)
 
 void Theme::channel_clicked(int preview_num)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_getglobal(L, "channel_clicked");
        lua_pushnumber(L, preview_num);
 
@@ -1507,7 +1526,7 @@ int Theme::set_theme_menu(lua_State *L)
 
 void Theme::theme_menu_entry_clicked(int lua_ref)
 {
-       unique_lock<mutex> lock(m);
+       lock_guard<mutex> lock(m);
        lua_rawgeti(L, LUA_REGISTRYINDEX, lua_ref);
        if (lua_pcall(L, 0, 0, 0) != 0) {
                fprintf(stderr, "error running menu callback: %s\n", lua_tostring(L, -1));