X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Ftheme.cpp;h=ade4e8fd2dc7f8f6359c9bea8acf05e5e7ccf748;hb=622b1e84c60f315cf2980efbf1b54cc049a7d2ce;hp=e3cdac2df54feac52374d623ce36bf34841cabf9;hpb=9ece26cae09110a3c6a0c74aefb2269a6dd9a7d9;p=nageru diff --git a/nageru/theme.cpp b/nageru/theme.cpp index e3cdac2..ade4e8f 100644 --- a/nageru/theme.cpp +++ b/nageru/theme.cpp @@ -29,6 +29,7 @@ #include #include +#include "audio_mixer.h" #include "defs.h" #ifdef HAVE_CEF #include "cef_capture.h" @@ -38,6 +39,7 @@ #include "image_input.h" #include "input_state.h" #include "lua_utils.h" +#include "mainwindow.h" #include "pbo_frame_allocator.h" #include "scene.h" @@ -52,6 +54,9 @@ using namespace movit; extern Mixer *global_mixer; +constexpr unsigned Theme::MenuEntry::CHECKABLE; +constexpr unsigned Theme::MenuEntry::CHECKED; + Theme *get_theme_updata(lua_State* L) { luaL_checktype(L, lua_upvalueindex(1), LUA_TLIGHTUSERDATA); @@ -1295,6 +1300,118 @@ int Nageru_set_supports_wb(lua_State *L) return 0; } +// NOTE: There's a race condition in all of the audio functions; if the mapping +// is changed by the user underway, you might not be manipulating the bus you +// expect. (You should not get crashes, though.) There's not all that much we +// can do about it, short of locking the entire mixer while anything from the +// theme runs. + +int Nageru_get_num_audio_buses(lua_State *L) +{ + if (global_audio_mixer == nullptr) { + // The audio mixer isn't set up until we know how many FFmpeg inputs we have. + luaL_error(L, "Audio functions can not be called before the theme is done initializing."); + } + lua_pushinteger(L, global_audio_mixer->num_buses()); + return 1; +} + +int Nageru_get_audio_bus_name(lua_State *L) +{ + if (global_audio_mixer == nullptr) { + // The audio mixer isn't set up until we know how many FFmpeg inputs we have. + luaL_error(L, "Audio functions can not be called before the theme is done initializing."); + } + int bus_index = luaL_checknumber(L, 1); + InputMapping input_mapping = global_audio_mixer->get_input_mapping(); + if (bus_index < 0 || size_t(bus_index) >= input_mapping.buses.size()) { + // Doesn't fix the race, but fixes other out-of-bounds. + print_warning(L, "Theme called get_audio_bus_name() on nonexistent bus %d; returning nil.\n", bus_index); + lua_pushnil(L); + } else { + lua_pushstring(L, input_mapping.buses[bus_index].name.c_str()); + } + return 1; +} + +int Nageru_get_audio_bus_fader_level_db(lua_State *L) +{ + if (global_audio_mixer == nullptr) { + // The audio mixer isn't set up until we know how many FFmpeg inputs we have. + luaL_error(L, "Audio functions can not be called before the theme is done initializing."); + } + + int bus_index = luaL_checknumber(L, 1); + if (bus_index < 0 || size_t(bus_index) >= global_audio_mixer->num_buses()) { + // Doesn't fix the race, but fixes other out-of-bounds. + print_warning(L, "Theme called get_audio_bus_fader_level_db() on nonexistent bus %d; returning 0.0.\n", bus_index); + lua_pushnumber(L, 0.0); + } else { + lua_pushnumber(L, global_audio_mixer->get_fader_volume(bus_index)); + } + return 1; +} + +int Nageru_set_audio_bus_fader_level_db(lua_State *L) +{ + if (global_audio_mixer == nullptr || global_mainwindow == nullptr) { + // The audio mixer isn't set up until we know how many FFmpeg inputs we have. + luaL_error(L, "Audio functions can not be called before the theme is done initializing."); + } + + int bus_index = luaL_checknumber(L, 1); + if (bus_index < 0 || size_t(bus_index) >= global_audio_mixer->num_buses()) { + // Doesn't fix the race, but fixes other out-of-bounds. + print_warning(L, "Theme called set_audio_bus_fader_level_db() on nonexistent bus %d; ignoring.\n", bus_index); + return 0; + } + double level_db = luaL_checknumber(L, 2); + + // Go through the UI, so that it gets updated. + global_mainwindow->set_fader_absolute(bus_index, level_db); + return 0; +} + +int Nageru_get_audio_bus_mute(lua_State *L) +{ + if (global_audio_mixer == nullptr) { + // The audio mixer isn't set up until we know how many FFmpeg inputs we have. + luaL_error(L, "Audio functions can not be called before the theme is done initializing."); + } + + int bus_index = luaL_checknumber(L, 1); + if (bus_index < 0 || size_t(bus_index) >= global_audio_mixer->num_buses()) { + // Doesn't fix the race, but fixes other out-of-bounds. + print_warning(L, "Theme called get_audio_bus_mute() on nonexistent bus %d; returning false.\n", bus_index); + lua_pushboolean(L, false); + } else { + lua_pushboolean(L, global_audio_mixer->get_mute(bus_index)); + } + return 1; +} + +int Nageru_set_audio_bus_mute(lua_State *L) +{ + if (global_audio_mixer == nullptr || global_mainwindow == nullptr) { + // The audio mixer isn't set up until we know how many FFmpeg inputs we have. + luaL_error(L, "Audio functions can not be called before the theme is done initializing."); + } + + int bus_index = luaL_checknumber(L, 1); + if (bus_index < 0 || size_t(bus_index) >= global_audio_mixer->num_buses()) { + // Doesn't fix the race, but fixes other out-of-bounds. + print_warning(L, "Theme called set_audio_bus_mute() on nonexistent bus %d; ignoring.\n", bus_index); + return 0; + } + bool mute = checkbool(L, 2); + + // Go through the UI, so that it gets updated. + if (mute != global_audio_mixer->get_mute(bus_index)) { + global_mainwindow->toggle_mute(bus_index); + } + return 0; +} + Theme::Theme(const string &filename, const vector &search_dirs, ResourcePool *resource_pool, unsigned num_cards) : resource_pool(resource_pool), num_cards(num_cards), signal_to_card_mapping(global_flags.default_stream_mapping) { @@ -1440,11 +1557,21 @@ void Theme::register_globals() } const luaL_Reg Nageru_funcs[] = { + // Channel information. { "set_channel_name", Nageru_set_channel_name }, { "set_num_channels", Nageru_set_num_channels }, { "set_channel_signal", Nageru_set_channel_signal }, { "set_supports_wb", Nageru_set_supports_wb }, - { NULL, NULL } + + // Audio. + { "get_num_audio_buses", Nageru_get_num_audio_buses }, + { "get_audio_bus_name", Nageru_get_audio_bus_name }, + { "get_audio_bus_fader_level_db", Nageru_get_audio_bus_fader_level_db }, + { "set_audio_bus_fader_level_db", Nageru_set_audio_bus_fader_level_db }, + { "get_audio_bus_mute", Nageru_get_audio_bus_mute }, + { "set_audio_bus_mute", Nageru_set_audio_bus_mute }, + + { nullptr, nullptr } }; lua_pushlightuserdata(L, this); luaL_setfuncs(L, Nageru_funcs, 1); // for (name,f in funcs) { mt[name] = f, with upvalue {theme} } @@ -1686,12 +1813,30 @@ bool Theme::get_supports_set_wb(unsigned channel) void Theme::set_wb(unsigned channel, float r, float g, float b) { + int signal = get_channel_signal(channel); + lock_guard lock(m); + if (signal != -1) { + white_balance_for_signal[signal] = RGBTriplet{ r, g, b }; + } - if (channel_signals.count(channel)) { - white_balance_for_signal[channel_signals[channel]] = WhiteBalance{ r, g, b }; + call_lua_wb_callback(channel, r, g, b); +} + +void Theme::set_wb_for_signal(int signal, float r, float g, float b) +{ + lock_guard lock(m); + white_balance_for_signal[signal] = RGBTriplet{ r, g, b }; + + for (const auto &channel_and_signal : channel_signals) { + if (channel_and_signal.second == signal) { + call_lua_wb_callback(channel_and_signal.first, r, g, b); + } } +} +void Theme::call_lua_wb_callback(unsigned channel, float r, float g, float b) +{ lua_getglobal(L, "set_wb"); if (lua_isnil(L, -1)) { // The function doesn't exist, to just ignore. We've stored the white balance, @@ -1711,12 +1856,12 @@ void Theme::set_wb(unsigned channel, float r, float g, float b) assert(lua_gettop(L) == 0); } -Theme::WhiteBalance Theme::get_white_balance_for_signal(int signal) +RGBTriplet Theme::get_white_balance_for_signal(int signal) { if (white_balance_for_signal.count(signal)) { return white_balance_for_signal[signal]; } else { - return WhiteBalance{ 1.0, 1.0, 1.0 }; + return RGBTriplet{ 1.0, 1.0, 1.0 }; } }