reccon/screen.h at master · ma5ter/reccon · GitHub

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#ifndef SCREEN_H
#define SCREEN_H

#define DEFAULT_FG COLOR_WHITE
#define DEFAULT_BG COLOR_BLACK

#include <stdint.h>
#include <linux/fb.h>

#include "fonts/8x16.h"

// ARGB for 32bpp
// Standard colors
#define COLOR_BLACK		0x00000000
#define COLOR_WHITE		0xFFFFFFFF
#define COLOR_RED		0xFFFF0000
#define COLOR_GREEN		0xFF00FF00
#define COLOR_BLUE		0xFF0000FF
#define COLOR_YELLOW	0xFFFFFF00
#define COLOR_MAGENTA	0xFFFF00FF
#define COLOR_CYAN		0xFF00FFFF

// Bright colors (higher intensity versions)
#define COLOR_BRIGHT_BLACK	0xFF4C4C4C
#define COLOR_BRIGHT_RED	0xFFFF6E6E
#define COLOR_BRIGHT_GREEN	0xFF6EFF6E
#define COLOR_BRIGHT_YELLOW	0xFFFFFF6E
#define COLOR_BRIGHT_BLUE	0xFF6E6EFF
#define COLOR_BRIGHT_MAGENTA	0xFFFF6EFF
#define COLOR_BRIGHT_CYAN	0xFF6EFFFF
#define COLOR_BRIGHT_WHITE	0xFFFFFFFF

typedef struct pt {
	int x;
	int y;
} pt_t;

typedef struct sz {
	int w;
	int h;
} sz_t;

typedef union rect {
	struct {
		int x;
		int y;
		int w;
		int h;
	};

	struct {
		pt_t pt;
		sz_t sz;
	};
} rect_t;

typedef struct screen {
	int fd;
	char sys_backlight[1024];
	int max_bright;
	struct fb_fix_screeninfo finfo;
	struct fb_var_screeninfo vinfo;
	uint32_t size;
	uint8_t *mem;
	int columns;
	int rows;
	pt_t cursor;
	uint32_t fg_color;
	uint32_t bg_color;
	uint32_t cursor_color;
} screen_t;

int screen_open(screen_t *screen, const char *dev_fb, const char *sys_backlight);

int screen_open_virtual(screen_t *screen, int width, int height);

void screen_close(screen_t *screen);

void screen_backlight(const screen_t *screen, int percent);

void screen_redraw(screen_t *screen);

uint32_t screen_pixel_set(const screen_t *screen, int x, int y, uint32_t c);

void screen_fill(const screen_t *screen, const rect_t *rect, uint32_t c);

void screen_put_ch(const screen_t *screen, unsigned char c);

void screen_put_cursor(const screen_t *screen, uint32_t saved_cursor[font_h][font_w], int put);

void screen_move_clr(const screen_t *screen, const pt_t *dst, const rect_t *src);

void screen_scroll_v(const screen_t *screen, int offset);

void screen_scroll_h(const screen_t *screen, int offset);

void screen_clear(screen_t screen, int backlight_percent);

int screen_save_bmp(const screen_t *screen, const char *filename);

#endif