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feature: start to implement the drivers for char printing support

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This commit is contained in:
0x35c 2024-12-11 20:54:03 +01:00
parent e5bdd1b5ee
commit 33cb3dfa30
6 changed files with 1694 additions and 38 deletions
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2
headers/font.h
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@ -5,5 +5,5 @@
struct font {
uint32_t height;
uint32_t width;
char **bitmap;
char *bitmap;
};

1647
headers/fonts/eating_pasta_regular_32.h Normal file
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File diff suppressed because it is too large Load Diff

4
headers/vbe.h
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@ -1,5 +1,6 @@
#pragma once
#include "icon.h"
#include <stdint.h>
struct vbe_interface {
@ -11,3 +12,6 @@ struct vbe_interface {
};
extern struct vbe_interface display;
void draw_icon(uint32_t pos_x, uint32_t pos_y, struct icon *img);
void put_pixel(uint32_t color, uint32_t x, uint32_t y);

18
src/drivers/vbe.c
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@ -1,10 +1,22 @@
#include "vbe.h"
#include "drivers.h"
#include "icon.h"
struct vbe_interface display;
void put_pixel(uint16_t x, uint16_t y)
void put_pixel(uint32_t color, uint32_t x, uint32_t y)
{
//
// divide by 4 because display.buff is in 32bit instead of 8bit
const uint32_t coords = x + y * display.pitch / 4;
display.buff[coords] = color;
}
void draw_icon(uint32_t pos_x, uint32_t pos_y, struct icon *img)
{
for (uint32_t y = 0; y < img->height; y++) {
for (uint32_t x = 0; x < img->width; x++) {
put_pixel(img->pixels[y * img->width + x], pos_x + x,
pos_y + y);
}
}
}

20
src/kernel.c
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@ -29,24 +29,6 @@
#error "This tutorial needs to be compiled with a ix86-elf compiler"
#endif
static void put_pixel(uint32_t color, uint32_t x, uint32_t y)
{
// /
// 4 cause display.buff is in 32bit instead of 8bit
const uint32_t coords = x + y * display.pitch / 4;
display.buff[coords] = color;
}
void draw_icon(uint32_t pos_x, uint32_t pos_y, struct icon *img)
{
for (uint32_t y = 0; y < img->height; y++) {
for (uint32_t x = 0; x < img->width; x++) {
put_pixel(img->pixels[y * img->width + x], pos_x + x,
pos_y + y);
}
}
}
void kernel_main(multiboot_info_t *mbd, uint32_t magic)
{
/* terminal_initialize(); */
@ -60,7 +42,7 @@ void kernel_main(multiboot_info_t *mbd, uint32_t magic)
/* "complex 8*unknown quantity -byte descriptor table. -- Troy "
*/
/* "Martin 03:50, 22 March 2009 (UTC)\n"); */
draw_icon(0, 0, &image_icon);
terminal_putchar('A');
/* memset(display.buff, 255, 1024 * 1024); */
/* shell_init(); */
}

39
src/terminal/put.c
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@ -1,9 +1,12 @@
#include "ctype.h"
#include "font.h"
#include "fonts/eating_pasta_regular_32.h"
#include "kprintf.h"
#include "shell.h"
#include "string.h"
#include "sys/io.h"
#include "terminal.h"
#include "vbe.h"
#include <stdbool.h>
#include <stddef.h>
@ -82,13 +85,19 @@ uint8_t terminal_get_default_color(void)
uint8_t terminal_get_char(int column, int row)
{
/* return screen->buffer[row * VGA_WIDTH + column]; */
return screen->buffer[row * VGA_WIDTH + column];
}
void terminal_putentryat(char c, uint8_t color, size_t x, size_t y)
void terminal_putentryat(char c, uint32_t color, size_t x, size_t y)
{
const size_t index = y * VGA_WIDTH + x;
TERM_BUF[index] = vga_entry(c, color);
struct font node = eating_pasta_regular_32_font[(int)c];
char *glyph = node.bitmap;
for (size_t cy = 0; cy < node.height; cy++)
for (size_t cx = 0; cx < node.width; cx++)
if (glyph[cy + node.width + cx] == '#')
put_pixel(color, x + cx, y + cy);
/* const size_t index = y * VGA_WIDTH + x; */
/* TERM_BUF[index] = vga_entry(c, color); */
}
static void terminal_scroll(void)
@ -151,16 +160,18 @@ void terminal_clear(void)
int terminal_putchar(char c)
{
if (c == '\r')
screen->column = 0;
else if (c == '\n')
terminal_new_line();
if (!isprint(c))
return 1;
terminal_putentryat(c, screen->color, screen->column, screen->row);
if (++screen->column == VGA_WIDTH)
terminal_new_line();
return 1;
terminal_putentryat(c, 0xCCFFE5, 10, 10);
/* if (c == '\r') */
/* screen->column = 0; */
/* else if (c == '\n') */
/* terminal_new_line(); */
/* if (!isprint(c)) */
/* return 1; */
/* terminal_putentryat(c, screen->color, screen->column, screen->row);
*/
/* if (++screen->column == VGA_WIDTH) */
/* terminal_new_line(); */
/* return 1; */
}
int terminal_write(const char *data, size_t size)