#ifndef DISPLAY_HEADER
#define DISPLAY_HEADER

#define Set_Lower_Column_Start_Address_CMD        0x00
#define Set_Higher_Column_Start_Address_CMD       0x10
#define Set_Memory_Addressing_Mode_CMD            0x20
#define Set_Column_Address_CMD                    0x21
#define Set_Page_Address_CMD                      0x22
#define Set_Display_Start_Line_CMD                0x40
#define Set_Contrast_Control_CMD                  0x81
#define Set_Charge_Pump_CMD                       0x8D
#define Set_Segment_Remap_CMD                     0xA0
#define Set_Entire_Display_ON_CMD                 0xA4
#define Set_Normal_or_Inverse_Display_CMD         0xA6
#define Set_Multiplex_Ratio_CMD                   0xA8
#define Set_Display_ON_or_OFF_CMD                 0xAE
#define Set_Page_Start_Address_CMD                0xB0
#define Set_COM_Output_Scan_Direction_CMD         0xC0
#define Set_Display_Offset_CMD                    0xD3
#define Set_Display_Clock_CMD                     0xD5
#define Set_Pre_charge_Period_CMD                 0xD9
#define Set_Common_HW_Config_CMD                  0xDA
#define Set_VCOMH_Level_CMD                       0xDB
#define Set_NOP_CMD                               0xE3

#define Horizontal_Addressing_Mode                0x00
#define Vertical_Addressing_Mode                  0x01
#define Page_Addressing_Mode                      0x02

#define Disable_Charge_Pump                       0x00
#define Enable_Charge_Pump                        0x04

#define Column_Address_0_Mapped_to_SEG0           0x00
#define Column_Address_0_Mapped_to_SEG127         0x01

#define Normal_Display                            0x00
#define Entire_Display_ON                         0x01

#define Non_Inverted_Display                      0x00
#define Inverted_Display                          0x01

#define Display_OFF                               0x00
#define Display_ON                                0x01

#define Scan_from_COM0_to_63                      0x00
#define Scan_from_COM63_to_0                      0x08

#define x_size                                    128
#define x_max                                     x_size
#define x_min                                     0
#define y_size                                    64
#define y_max                                     8
#define y_min                                     0

#define ON                                        1
#define OFF                                       0

#define YES                                       1
#define NO                                        0

#define HIGH                                      1
#define LOW                                       0

#define ROUND                                     1
#define SQUARE                                    0

#define DAT                                       1
#define CMD                                       0

#define buffer_size                              (x_max * y_max)


uint8_t buffer[buffer_size];




inline void DISPLAY_CTRL_RST(uint8_t level)
{
	if (level)	PORTD.OUT |= (1<<PIN5_bp);
	else		PORTD.OUT &= ~(1<<PIN5_bp);
}
inline void DISPLAY_CTRL_DC(uint8_t level)
{
	if (level)	PORTD.OUT |= (1<<PIN4_bp);
	else		PORTD.OUT &= ~(1<<PIN4_bp);
}
inline void DISPLAY_CTRL_RW(uint8_t level)
{
	if (level)	PORTD.OUT |= (1<<PIN3_bp);
	else		PORTD.OUT &= ~(1<<PIN3_bp);
}
inline void DISPLAY_CTRL_ERD(uint8_t level)
{
	if (level)	PORTD.OUT |= (1<<PIN2_bp);
	else		PORTD.OUT &= ~(1<<PIN2_bp);
}
inline void DISPLAY_CTRL_CS(uint8_t level)
{
	if (level)	PORTB.OUT |= (1<<PIN0_bp);
	else		PORTB.OUT &= ~(1<<PIN0_bp);
}


void swap(int16_t *a, int16_t *b);
void OLED_write(uint8_t value, uint8_t type);
inline void OLED_reset_sequence();
inline void OLED_init();
void OLED_gotoxy(uint8_t x_pos, uint8_t y_pos);
void OLED_fill(uint8_t bmp_data);
void OLED_clear_screen();
void OLED_clear_buffer();
void OLED_cursor(uint8_t x_pos, uint8_t y_pos);
void OLED_print_Image(const uint8_t *bmp, uint8_t pixel);
void OLED_draw_bitmap(uint8_t xb, uint8_t yb, uint8_t xe, uint8_t ye, uint8_t *bmp_img);
void OLED_print_char(uint8_t x_pos, uint8_t y_pos, uint8_t ch);
void OLED_print_string(uint8_t x_pos, uint8_t y_pos, uint8_t *ch);
void OLED_print_chr(uint8_t x_pos, uint8_t y_pos, int16_t value);
void OLED_print_int(uint8_t x_pos, uint8_t y_pos, int32_t value);
void OLED_print_decimal(uint8_t x_pos, uint8_t y_pos, uint16_t value, uint8_t points);
void OLED_print_float(uint8_t x_pos, uint8_t y_pos, float value, uint8_t points);
void Draw_Pixel(uint8_t x_pos, uint8_t y_pos, uint8_t colour);
void Draw_Line(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t colour);
void Draw_V_Line(int16_t x1, int16_t y1, int16_t y2, uint8_t colour);
void Draw_H_Line(int16_t x1, int16_t x2, int16_t y1, uint8_t colour);
void Draw_Triangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, int16_t x3, int16_t y3, uint8_t fill, uint16_t colour);
void Draw_Rectangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t fill, uint8_t colour, uint8_t type);
void Draw_Circle(int16_t xc, int16_t yc, int16_t radius, uint8_t fill, uint8_t colour);
#endif