61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
#include <algorithm>
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#define SOL_ALL_SAFETIES_ON 1
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#include <glib.h>
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#include <glib-object.h>
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#include "sol.hpp"
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static guint default_node_sig = 0, get_volume_sig = 0, set_volume_sig = 0;
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static guint default_node(gpointer api) {
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if (default_node_sig == 0)
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default_node_sig = g_signal_lookup("get-default-node", G_TYPE_FROM_INSTANCE(api));
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guint retval;
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g_signal_emit(api, default_node_sig, 0, "Audio/Sink", &retval);
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return retval;
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}
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static std::tuple<guint, bool> get_volume(gpointer api, guint32 id) {
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if (get_volume_sig == 0)
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get_volume_sig = g_signal_lookup("get-volume", G_TYPE_FROM_INSTANCE(api));
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GVariant *variant = nullptr;
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g_signal_emit(api, get_volume_sig, 0, id, &variant);
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gdouble volumed = 0.5;
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gboolean mute = false;
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if (variant) {
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g_variant_lookup(variant, "volume", "d", &volumed);
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g_variant_lookup(variant, "mute", "b", &mute);
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g_variant_unref(variant);
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}
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return std::tuple<guint, bool>(std::round(volumed * 100.0), mute == 1);
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}
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static void set_volume(gpointer api, guint32 id, int vol, bool mute) {
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if (set_volume_sig == 0)
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set_volume_sig = g_signal_lookup("set-volume", G_TYPE_FROM_INSTANCE(api));
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vol = std::clamp(vol, 0, 150);
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g_auto(GVariantBuilder) b = G_VARIANT_BUILDER_INIT(G_VARIANT_TYPE_VARDICT);
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g_variant_builder_add(&b, "{sv}", "volume", g_variant_new_double(((gdouble)vol)/100));
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g_variant_builder_add(&b, "{sv}", "mute", g_variant_new_boolean(mute ? TRUE : FALSE));
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GVariant *variant = g_variant_builder_end(&b);
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gboolean res;
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g_signal_emit(api, set_volume_sig, 0, id, variant, &res);
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}
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extern "C" int luaopen_libpwcall(lua_State *L) {
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sol::state_view lua(L);
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auto tbl = lua.create_table();
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tbl.set_function("default_node", default_node);
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tbl.set_function("get_volume", get_volume);
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tbl.set_function("set_volume", set_volume);
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sol::stack::push(L, tbl);
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return 1;
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}
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