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Add: graphics mode terminal scrolling

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xamidev
2024-08-23 13:05:53 +02:00
parent f8eb658c33
commit f1a9f84f24
8 changed files with 86 additions and 33 deletions
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43
src/libc/stdio.c
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@@ -4,6 +4,7 @@
#include "stdint.h"
#include "../kernel/system.h"
#include "../drivers/framebuffer.h"
#include "../drivers/serial.h"
extern uint32_t* framebuffer;
extern uint32_t VGA_WIDTH;
@@ -35,32 +36,6 @@ void clear(void)
move_cursor(0, 0);
}
void scroll(int lines)
{
if (lines <= 0 || (unsigned int)lines >= VGA_HEIGHT) return;
for (unsigned int y = 0; y < VGA_HEIGHT-lines; y++)
{
for (unsigned int x = 0; x < VGA_WIDTH; x++)
{
//putchar(getchar(x, y+lines), x, y, white, black);
}
}
for (unsigned int y = VGA_HEIGHT-lines; y<VGA_HEIGHT; y++)
{
for (unsigned int x = 0; x < VGA_WIDTH; x++)
{
//putchar(' ', x, y, black, black);
}
}
VGA_Y -= lines;
if ((int)VGA_Y < 0) {
VGA_Y = 0;
}
}
void putc(char c)
{
switch(c)
@@ -101,7 +76,12 @@ void putc(char c)
VGA_Y++;
VGA_X = 0;
}
if (VGA_Y >= VGA_HEIGHT) scroll(1);
if (VGA_Y >= VGA_HEIGHT)
{
serial_printf(3, "VGA_Y=%d, VGA_HEIGHT=%d: Scrolling...\r", VGA_Y, VGA_HEIGHT);
scroll();
VGA_Y = VGA_HEIGHT - 1;
}
move_cursor(VGA_X, VGA_Y);
}
@@ -131,7 +111,14 @@ void colorputc(char c, uint32_t fg, uint32_t bg)
VGA_Y++;
VGA_X = 0;
}
if (VGA_Y >= VGA_HEIGHT) scroll(1);
if (VGA_Y >= VGA_HEIGHT)
{
serial_printf(3, "VGA_Y=%d, VGA_HEIGHT=%d: Scrolling...\r", VGA_Y, VGA_HEIGHT);
scroll();
VGA_Y = VGA_HEIGHT - 1;
}
move_cursor(VGA_X, VGA_Y);
}