frontend: Add Metal to available list of renderers in basic settings

frontend/OBSApp.cpp

@@ -291,9 +291,14 @@ bool OBSApp::InitGlobalConfigDefaults()
 
 #if _WIN32
 	config_set_default_string(appConfig, "Video", "Renderer", "Direct3D 11");
+#else
+#if defined(__APPLE__) && defined(__aarch64__)
+	// TODO: Change this value to "Metal" once the renderer has reached production quality
+	config_set_default_string(appConfig, "Video", "Renderer", "OpenGL");
 #else
 	config_set_default_string(appConfig, "Video", "Renderer", "OpenGL");
 #endif
+#endif
 
 #ifdef _WIN32
 	config_set_default_bool(appConfig, "Audio", "DisableAudioDucking", true);
@@ -1077,9 +1082,17 @@ void OBSApp::checkForUncleanShutdown()
 
 const char *OBSApp::GetRenderModule() const
 {
+#if defined(_WIN32)
 	const char *renderer = config_get_string(appConfig, "Video", "Renderer");
 
 	return (astrcmpi(renderer, "Direct3D 11") == 0) ? DL_D3D11 : DL_OPENGL;
+#elif defined(__APPLE__) && defined(__aarch64__)
+	const char *renderer = config_get_string(appConfig, "Video", "Renderer");
+
+	return (astrcmpi(renderer, "Metal (Experimental)") == 0) ? DL_METAL : DL_OPENGL;
+#else
+	return DL_OPENGL;
+#endif
 }
 
 static bool StartupOBS(const char *locale, profiler_name_store_t *store)

frontend/settings/OBSBasicSettings.cpp

@@ -608,11 +608,24 @@ OBSBasicSettings::OBSBasicSettings(QWidget *parent)
 	for (ProcessPriority pri : processPriorities)
 		ui->processPriority->addItem(QTStr(pri.name), pri.val);
 
+#else
+#if defined(__APPLE__) && defined(__aarch64__)
+	delete ui->adapterLabel;
+	delete ui->adapter;
+
+	ui->adapterLabel = nullptr;
+	ui->adapter = nullptr;
 #else
 	delete ui->rendererLabel;
 	delete ui->renderer;
 	delete ui->adapterLabel;
 	delete ui->adapter;
+
+	ui->rendererLabel = nullptr;
+	ui->renderer = nullptr;
+	ui->adapterLabel = nullptr;
+	ui->adapter = nullptr;
+#endif
 	delete ui->processPriorityLabel;
 	delete ui->processPriority;
 	delete ui->enableNewSocketLoop;
@@ -624,10 +637,6 @@ OBSBasicSettings::OBSBasicSettings(QWidget *parent)
 #endif
 	delete ui->disableAudioDucking;
 
-	ui->rendererLabel = nullptr;
-	ui->renderer = nullptr;
-	ui->adapterLabel = nullptr;
-	ui->adapter = nullptr;
 	ui->processPriorityLabel = nullptr;
 	ui->processPriority = nullptr;
 	ui->enableNewSocketLoop = nullptr;
@@ -1384,16 +1393,21 @@ void OBSBasicSettings::LoadGeneralSettings()
 
 void OBSBasicSettings::LoadRendererList()
 {
-#ifdef _WIN32
+#if defined(_WIN32) || (defined(__APPLE__) && defined(__aarch64__))
 	const char *renderer = config_get_string(App()->GetAppConfig(), "Video", "Renderer");
-
+#ifdef _WIN32
 	ui->renderer->addItem(QT_UTF8("Direct3D 11"));
-	if (opt_allow_opengl || strcmp(renderer, "OpenGL") == 0)
+	if (opt_allow_opengl || strcmp(renderer, "OpenGL") == 0) {
 		ui->renderer->addItem(QT_UTF8("OpenGL"));
-
-	int idx = ui->renderer->findText(QT_UTF8(renderer));
-	if (idx == -1)
-		idx = 0;
+	}
+#else
+	ui->renderer->addItem(QT_UTF8("OpenGL"));
+	ui->renderer->addItem(QT_UTF8("Metal (Experimental)"));
+#endif
+	int index = ui->renderer->findText(QT_UTF8(renderer));
+	if (index == -1) {
+		index = 0;
+	}
 
 	// the video adapter selection is not currently implemented, hide for now
 	// to avoid user confusion. was previously protected by
@@ -1403,7 +1417,7 @@ void OBSBasicSettings::LoadRendererList()
 	ui->adapter = nullptr;
 	ui->adapterLabel = nullptr;
 
-	ui->renderer->setCurrentIndex(idx);
+	ui->renderer->setCurrentIndex(index);
 #endif
 }
 
@@ -3130,10 +3144,13 @@ void OBSBasicSettings::SaveAdvancedSettings()
 {
 	QString lastMonitoringDevice = config_get_string(main->Config(), "Audio", "MonitoringDeviceId");
 
-#ifdef _WIN32
-	if (WidgetChanged(ui->renderer))
+#if defined(_WIN32) || (defined(__APPLE__) && defined(__aarch64__))
+	if (WidgetChanged(ui->renderer)) {
 		config_set_string(App()->GetAppConfig(), "Video", "Renderer", QT_TO_UTF8(ui->renderer->currentText()));
+	}
+#endif
 
+#ifdef _WIN32
 	std::string priority = QT_TO_UTF8(ui->processPriority->currentData().toString());
 	config_set_string(App()->GetAppConfig(), "General", "ProcessPriority", priority.c_str());
 	if (main->Active())