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#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;
};
SLIST_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 {
SLIST_HEAD(layers_head, Layer) head;
SDL_mutex *mutex;
inline void
lock()
{
SDL_LockMutex(mutex);
}
inline void
unlock()
{
SDL_UnlockMutex(mutex);
}
public:
LayerList()
{
SLIST_INIT(&head);
mutex = SDL_CreateMutex();
}
~LayerList()
{
SDL_DestroyMutex(mutex);
}
void insert(int pos, Layer *layer);
bool delete_by_name(const char *name);
void render(SDL_Surface *target);
};
#endif
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