log_screen.c File Reference

#include <kernel/log/log_screen.h>
#include <kernel/drivers/com.h>
#include <kernel/log/glyphs.h>
#include <kernel/sync/lock.h>
#include <string.h>
#include <sys/math.h>

Go to the source code of this file.

Functions
static log_screen_line_t *	log_screen_get_line (uint64_t y)
static void	log_screen_invalidate (const log_screen_pos_t *pos)
static void	log_screen_put (char chr)
static void	log_screen_flush (void)
void	log_screen_init (const boot_gop_t *bootGop)
	Initialize the screen logging.
static void	log_screen_scroll (void)
static void	log_screen_advance_cursor (char chr)
void	log_screen_clear (void)
	Clear the screen.
uint64_t	log_screen_get_width (void)
	Get screen width in characters.
uint64_t	log_screen_get_height (void)
	Get screen height in characters.
void	log_screen_write (const char *string, uint64_t length)
	Write a string to the screen.

Variables
static boot_gop_t	gop = {0}
static log_screen_pos_t	cursor = {0, 0}
static log_screen_t	screen = {0}
static lock_t	lock = LOCK_CREATE

Function Documentation

log_screen_advance_cursor()

static void log_screen_advance_cursor ( char  chr )

static

Definition at line 138 of file log_screen.c.

References cursor, log_screen_t::height, log_screen_put(), log_screen_scroll(), screen, SCREEN_WRAP_INDENT, log_screen_t::width, log_screen_pos_t::x, and log_screen_pos_t::y.

Referenced by log_screen_write().

log_screen_flush()

static void log_screen_flush ( void  )

static

Definition at line 65 of file log_screen.c.

References GLYPH_HEIGHT, GLYPH_WIDTH, gop, log_screen_t::invalidEnd, log_screen_t::invalidStart, log_screen_get_line(), memcpy(), log_screen_line_t::pixels, screen, SCREEN_LINE_STRIDE, boot_gop_t::stride, boot_gop_t::virtAddr, log_screen_pos_t::x, log_screen_pos_t::y, and y.

Referenced by log_screen_write().

log_screen_get_line()

static log_screen_line_t * log_screen_get_line ( uint64_t  y )

static

Definition at line 16 of file log_screen.c.

References log_screen_t::firstLineIndex, log_screen_t::height, log_screen_t::lines, screen, and y.

Referenced by log_screen_flush(), log_screen_put(), and log_screen_scroll().

log_screen_invalidate()

static void log_screen_invalidate ( const log_screen_pos_t *  pos )

static

Definition at line 22 of file log_screen.c.

References log_screen_t::height, log_screen_t::invalidEnd, log_screen_t::invalidStart, MAX, MIN, screen, log_screen_t::width, log_screen_pos_t::x, and log_screen_pos_t::y.

Referenced by log_screen_put().

log_screen_put()

static void log_screen_put ( char  chr )

static

Definition at line 42 of file log_screen.c.

References cache, cursor, glyph_cache_get(), GLYPH_HEIGHT, GLYPH_WIDTH, glyph_cache_t::glyphs, log_screen_line_t::length, log_screen_get_line(), log_screen_invalidate(), MAX, memcpy(), glyph_t::pixels, log_screen_line_t::pixels, SCREEN_LINE_STRIDE, log_screen_pos_t::x, log_screen_pos_t::y, and y.

Referenced by log_screen_advance_cursor(), and log_screen_write().

log_screen_scroll()

static void log_screen_scroll ( void  )

static

Definition at line 98 of file log_screen.c.

References cursor, log_screen_t::firstLineIndex, GLYPH_HEIGHT, GLYPH_WIDTH, gop, log_screen_t::height, log_screen_t::invalidEnd, log_screen_t::invalidStart, log_screen_line_t::length, log_screen_get_line(), memcpy(), memset32(), log_screen_line_t::pixels, screen, SCREEN_LINE_STRIDE, boot_gop_t::stride, boot_gop_t::virtAddr, log_screen_pos_t::y, and y.

Referenced by log_screen_advance_cursor().

Variable Documentation

cursor

log_screen_pos_t cursor = {0, 0}

static

Definition at line 11 of file log_screen.c.

Referenced by log_screen_advance_cursor(), log_screen_clear(), log_screen_init(), log_screen_put(), and log_screen_scroll().

gop

boot_gop_t gop = {0}

static

Definition at line 10 of file log_screen.c.

Referenced by log_screen_clear(), log_screen_flush(), log_screen_init(), and log_screen_scroll().

lock

lock_t lock = LOCK_CREATE

static

Definition at line 14 of file log_screen.c.

Referenced by log_screen_clear(), and log_screen_write().

screen

log_screen_t screen = {0}

static

Definition at line 12 of file log_screen.c.

Referenced by log_screen_advance_cursor(), log_screen_clear(), log_screen_flush(), log_screen_get_height(), log_screen_get_line(), log_screen_get_width(), log_screen_init(), log_screen_invalidate(), and log_screen_scroll().