Added new Whirling module, just blank for now

modules/Whirling/Makefile

@@ -0,0 +1,62 @@
+LIBNAME := $(shell basename $$(pwd))
+MAJOR := 1
+MINOR := 0.0
+
+UNAME_S := $(shell uname -s)
+
+ifeq ($(UNAME_S),Darwin)
+	LINKERNAME := $(LIBNAME).dylib
+	SONAME := $(LIBNAME).$(MAJOR).dylib
+	REALNAME := $(LINKERNAME)
+else
+	LINKERNAME := $(LIBNAME).so
+	SONAME := $(LINKERNAME).$(MAJOR)
+	REALNAME := $(SONAME).$(MINOR)
+endif
+
+PREFIX ?= ../..
+LIBDIR ?= $(PREFIX)/plugins
+
+SRCS := $(wildcard *.cpp)
+OBJS := $(subst .cpp,.o,$(SRCS))
+DEPS := $(subst .cpp,.d,$(SRCS))
+HDRS := $(filter-out $(LIBNAME).hpp,$(wildcard *.hpp))
+
+CXX ?= g++
+
+CXXFLAGS := $(CXXFLAGS) -Wshadow -Wall -Wpedantic -Wextra -g -fno-strict-aliasing -std=c++17 -fPIC
+ifeq ($(DEBUG),1)
+	CXXFLAGS += -D DEBUG -O0
+else
+	CXXFLAGS += -D NDEBUG -O3
+endif
+
+LDLIBS := -lcairo -lscscreensaver
+
+RM := /bin/rm -f
+INSTALL := /usr/bin/install -c
+
+.PHONY: all clean install
+
+all: $(REALNAME)
+
+$(REALNAME): $(OBJS) $(DEPS)
+ifeq ($(UNAME_S),Darwin)
+	$(CXX) -dynamiclib -o $(REALNAME) -current_version $(MAJOR) -compatibility_version $(MINOR) $(LDFLAGS) $(LDLIBS) $(OBJS)
+else
+	$(CXX) -g -shared -Wl,-soname,$(SONAME) -o $(REALNAME) $(LDFLAGS) $(LDLIBS) $(OBJS)
+endif
+
+%.o: %.cpp %.d Makefile
+	$(CXX) $(CXXFLAGS) -MMD -MP -MT $@ -MF $*.d -c $<
+
+-include *.d
+
+%.d: ;
+
+clean:
+	$(RM) $(OBJS) $(DEPS) $(REALNAME)
+
+install: $(REALNAME)
+	$(INSTALL) -d $(LIBDIR)
+	$(INSTALL) -m 644 $(REALNAME) $(LIBDIR)/$(LIBNAME).saver

modules/Whirling/Whirling.cpp

@@ -0,0 +1,38 @@
+//
+// Whirling.cpp
+// Whirling
+//
+// Created by Bob Polis at 2021-09-05
+// Copyright (c) 2021 SwiftCoder. All rights reserved.
+//
+
+#include "Whirling.hpp"
+#include <libscscreensaver.hpp>
+
+class Whirling : public ScreensaverPlugin {
+    public:
+        Whirling() = default;
+        ~Whirling() = default;
+
+        int fps() const override;
+        void update() override;
+        void render() override;
+};
+
+ScreensaverPlugin* create_instance() {
+    return new Whirling;
+}
+
+int Whirling::fps() const {
+    return 30;
+}
+
+void Whirling::update() {
+    // adjust state for next render
+
+}
+
+void Whirling::render() {
+    // render one frame based on current state
+
+}

modules/Whirling/Whirling.hpp

@@ -0,0 +1,18 @@
+//
+// Whirling.hpp
+// Whirling
+//
+// Created by Bob Polis at 2021-09-05
+// Copyright (c) 2021 SwiftCoder. All rights reserved.
+//
+
+#ifndef _Whirling_H_
+#define _Whirling_H_
+
+class ScreensaverPlugin;
+
+extern "C" {
+    ScreensaverPlugin* create_instance();
+}
+
+#endif // _Whirling_H_