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/*
* screen.hh
*
* Created on: 26/03/2015
* Author: raster
*/
#ifndef SRC_SCREEN_HH_
#define SRC_SCREEN_HH_
using namespace std;
#include <inttypes.h>
#include <string>
extern class Screen *screen;
class Screen {
// screen private global variables
unsigned int translate[6144],translate2[6144];
unsigned int *p_translt,*p_translt2;
unsigned char *pixel; // current address
unsigned char *base_pixel;
char flash;
int currline,currpix;
int init_line; // cuantity to add to the base address to start to paint
int next_line; // cuantity to add when we reach the end of line to go to next line
int next_scanline; // cuantity to add to pass to the next scanline
int first_line; // first line to start to paint
int last_line; // last line to paint
int first_pixel; // first pixel of a line to paint
int last_pixel; // last pixel of a line to paint
int next_pixel; // next pixel
int jump_pixel;
int contador_flash;
int tstados_counter; // counts tstates leaved to the next call
int pixancho,pixalto; // maximum pixel value for width and height
bool screen_snow; // 0-> no emulate snow; 1-> emulate snow
uint8_t ulaplus_reg; // contains the last selected register in the ULAPlus
void paint_pixels (uint8_t octet,uint8_t ink, uint8_t paper);
public:
uint8_t border;
bool ulaplus; // ULAPlus inactive or active
uint8_t bus_value;
Screen();
void set_memory_pointers ();
void show_screen (int tstados);
void reset(uint8_t);
void set_ulaplus_register(uint8_t);
void set_ulaplus_value(uint8_t);
uint8_t read_ulaplus_value();
};
#endif /* SRC_SCREEN_HH_ */
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