#pragma once

#include <mutex>
extern "C" {
	#include "mupdf/fitz.h"
}

#define MAX_DISPLAY_CACHE_SIZE 3

typedef struct cache_entry_s cache_entry_t;

struct cache_entry_s
{
	int number;
	int width;
	int height;
	fz_display_list *dlist;
	cache_entry_t *next;
	cache_entry_t *prev;
	int index;
};

class Cache
{
private:
	int size;
	cache_entry_t *head;
	cache_entry_t *tail;
	std::mutex cache_lock;

public:
	Cache(void);
	~Cache(void);
	void GetSize(int *width, int *height);
	fz_display_list* Use(int value, int *width, int *height, fz_context *mu_ctx);
	void Add(int value, int width, int height, fz_display_list *dlist, fz_context *mu_ctx);
	void Empty(fz_context *mu_ctx);
};