autotools based build system

1 files changed, 125 insertions, 0 deletions

diff --git a/src/layer.h b/src/layer.h
new file mode 100644
index 0000000..21fab50
--- /dev/null
+++ b/src/layer.h
@@ -0,0 +1,125 @@
+#ifndef __HAVE_LAYER_H
+#define __HAVE_LAYER_H
+
+#include <string.h>
+#include <bsd/sys/queue.h>
+
+#include <SDL.h>
+#include <SDL_thread.h>
+
+#include <lo/lo.h>
+
+#include "osc_graphics.h"
+#include "osc_server.h"
+
+extern OSCServer osc_server;
+
+class Layer {
+	SDL_mutex *mutex;
+
+public:
+	/*
+	 * Every derived class must have a static CtorInfo struct "ctor_info"
+	 * and a static "ctor_osc" method
+	 */
+	struct CtorInfo {
+		const char *name;
+		const char *types;
+	};
+
+	LIST_ENTRY(Layer) layers;
+
+	char *name;
+
+	Layer(const char *name);
+	virtual ~Layer();
+
+	inline void
+	lock()
+	{
+		SDL_LockMutex(mutex);
+	}
+	inline void
+	unlock()
+	{
+		SDL_UnlockMutex(mutex);
+	}
+
+	/*
+	 * Frame render method
+	 */
+	virtual void frame(SDL_Surface *target) = 0;
+
+protected:
+	inline OSCServer::MethodHandlerId *
+	register_method(const char *method, const char *types,
+			OSCServer::MethodHandlerCb method_cb)
+	{
+		return osc_server.register_method(this, method, types, method_cb);
+	}
+	inline void
+	unregister_method(OSCServer::MethodHandlerId *hnd)
+	{
+		osc_server.unregister_method(hnd);
+	}
+
+	/*
+	 * Default methods
+	 */
+	virtual void geo(SDL_Rect geo) = 0;
+	virtual void alpha(float opacity) = 0;
+
+private:
+	/*
+	 * OSC handler methods
+	 */
+	OSCServer::MethodHandlerId *geo_osc_id;
+	static void
+	geo_osc(Layer *obj, lo_arg **argv)
+	{
+		SDL_Rect geo = {
+			(Sint16)argv[0]->i, (Sint16)argv[1]->i,
+			(Uint16)argv[2]->i, (Uint16)argv[3]->i
+		};
+		obj->geo(geo);
+	}
+	OSCServer::MethodHandlerId *alpha_osc_id;
+	static void
+	alpha_osc(Layer *obj, lo_arg **argv)
+	{
+		obj->alpha(argv[0]->f);
+	}
+};
+
+class LayerList {
+	LIST_HEAD(layers_head, Layer) head;
+
+	SDL_mutex *mutex;
+
+	inline void
+	lock()
+	{
+		SDL_LockMutex(mutex);
+	}
+	inline void
+	unlock()
+	{
+		SDL_UnlockMutex(mutex);
+	}
+
+public:
+	LayerList() : mutex(SDL_CreateMutex())
+	{
+		LIST_INIT(&head);
+	}
+	~LayerList()
+	{
+		SDL_DestroyMutex(mutex);
+	}
+
+	void insert(int pos, Layer *layer);
+	void delete_layer(Layer *layer);
+	void render(SDL_Surface *target);
+};
+
+#endif
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