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Lift 255x255 erminal sie restriction to 65535x65535. Also change from

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bitmasks to small structures of size chosen to fit in registers.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-10-19 23:59:32 +02:00
parent 7abdac8e13
commit e89c2d48a9
24 changed files with 266 additions and 244 deletions
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37
grub-core/term/i386/pc/vga_text.c
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@ -42,7 +42,7 @@ GRUB_MOD_LICENSE ("GPLv3+");
#define COLS 80
#define ROWS 25
static int grub_curr_x, grub_curr_y;
static struct grub_term_coordinate grub_curr_pos;
#ifdef __mips__
#define VGA_TEXT_SCREEN ((grub_uint16_t *) 0xb00b8000)
@ -75,7 +75,7 @@ screen_read_char (int x, int y)
static void
update_cursor (void)
{
unsigned int pos = grub_curr_y * COLS + grub_curr_x;
unsigned int pos = grub_curr_pos.y * COLS + grub_curr_pos.x;
cr_write (pos >> 8, GRUB_VGA_CR_CURSOR_ADDR_HIGH);
cr_write (pos & 0xFF, GRUB_VGA_CR_CURSOR_ADDR_LOW);
}
@ -83,9 +83,9 @@ update_cursor (void)
static void
inc_y (void)
{
grub_curr_x = 0;
if (grub_curr_y < ROWS - 1)
grub_curr_y++;
grub_curr_pos.x = 0;
if (grub_curr_pos.y < ROWS - 1)
grub_curr_pos.y++;
else
{
int x, y;
@ -100,10 +100,10 @@ inc_y (void)
static void
inc_x (void)
{
if (grub_curr_x >= COLS - 1)
if (grub_curr_pos.x >= COLS - 1)
inc_y ();
else
grub_curr_x++;
grub_curr_pos.x++;
}
static void
@ -113,17 +113,17 @@ grub_vga_text_putchar (struct grub_term_output *term __attribute__ ((unused)),
switch (c->base)
{
case '\b':
if (grub_curr_x != 0)
screen_write_char (grub_curr_x--, grub_curr_y, ' ');
if (grub_curr_pos.x != 0)
screen_write_char (grub_curr_pos.x--, grub_curr_pos.y, ' ');
break;
case '\n':
inc_y ();
break;
case '\r':
grub_curr_x = 0;
grub_curr_pos.x = 0;
break;
default:
screen_write_char (grub_curr_x, grub_curr_y,
screen_write_char (grub_curr_pos.x, grub_curr_pos.y,
c->base | (cur_color << 8));
inc_x ();
}
@ -131,18 +131,17 @@ grub_vga_text_putchar (struct grub_term_output *term __attribute__ ((unused)),
update_cursor ();
}
static grub_uint16_t
static struct grub_term_coordinate
grub_vga_text_getxy (struct grub_term_output *term __attribute__ ((unused)))
{
return (grub_curr_x << 8) | grub_curr_y;
return grub_curr_pos;
}
static void
grub_vga_text_gotoxy (struct grub_term_output *term __attribute__ ((unused)),
grub_uint8_t x, grub_uint8_t y)
struct grub_term_coordinate pos)
{
grub_curr_x = x;
grub_curr_y = y;
grub_curr_pos = pos;
update_cursor ();
}
@ -152,7 +151,7 @@ grub_vga_text_cls (struct grub_term_output *term)
int i;
for (i = 0; i < ROWS * COLS; i++)
VGA_TEXT_SCREEN[i] = grub_cpu_to_le16 (' ' | (cur_color << 8));
grub_vga_text_gotoxy (term, 0, 0);
grub_vga_text_gotoxy (term, (struct grub_term_coordinate) { 0, 0 });
}
static void
@ -203,10 +202,10 @@ grub_vga_text_fini_real (struct grub_term_output *term)
return 0;
}
static grub_uint16_t
static struct grub_term_coordinate
grub_vga_text_getwh (struct grub_term_output *term __attribute__ ((unused)))
{
return (80 << 8) | 25;
return (struct grub_term_coordinate) { 80, 25 };
}
#ifndef MODE_MDA