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atmega-geiger/src/framebuffer.h

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//
// Created by MightyPork on 2022/11/12.
//
#ifndef FRAMEBUFFER_H
#define FRAMEBUFFER_H
#include <stdbool.h>
#include <stdint.h>
#include "framebuffer_config.h"
#define FBSET 0xFF
#define FBCLEAR 0x00
/// Framebuffer backing array.
///
/// The format is the native format for SSD1306: array of bytes representing pixels in 8 rows at once, LSB is the topmost row.
///
/// a0 b0 ... til the display width
/// a1 b1
/// a2 b2
/// ... ...
/// a7 b7
///
/// and more bytes continue rows 8-15 and so on
extern uint8_t fb[(FBH / 8) * FBW];
void fb_fill(uint8_t pattern);
void fb_clear(void);
void fb_px(uint8_t x, uint8_t y, uint8_t color);
void fb_hline(uint8_t x, uint8_t y, uint8_t w, uint8_t color);
void fb_vline(uint8_t x, uint8_t y, uint8_t h, uint8_t color);
void fb_rect(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t color);
void fb_bitmap(uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t *map, uint8_t color);
/// Output the framebuffer array `fb` to the display device.
extern void fb_blit(void);
#endif //FRAMEBUFFER_H