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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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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(); */
}