diff options
Diffstat (limited to 'src/kernel/graphics/vesa.c')
| -rw-r--r-- | src/kernel/graphics/vesa.c | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/src/kernel/graphics/vesa.c b/src/kernel/graphics/vesa.c index 3549d66..af2502b 100644 --- a/src/kernel/graphics/vesa.c +++ b/src/kernel/graphics/vesa.c @@ -1,11 +1,42 @@ #include "vesa.h" -extern struct vbe_best vbe_find_mode(); +vbe_mode_info *vbe_set_mode(unsigned short mode) { + regs16_t regs; + regs.ax = 0x4F02; + regs.bx = mode | (1 << 14); + int32(0x10, ®s); -extern void vbe_set_mode(struct vbe_best); + if (regs.ax == 0x004F) { + regs.ax = 0x4F01; + regs.cx = mode; + regs.di = 0x0000; + regs.es = 0xA000; + int32(0x10, ®s); + if (regs.ax != 0x004F) { + // Add VGA redirect + } -struct vbe_best best; + vbe_mode_info *vbe_info = (vbe_mode_info *) 0xA0000; -void init_graphics() { - best = vbe_find_mode(); -}
\ No newline at end of file + vbe_width = vbe_info->width; + vbe_height = vbe_info->height; + vbe_bpp = vbe_info->bpp / 8; + vbe_pitch = vbe_info->pitch; + + char *fb = (char *) vbe_info->framebuffer; + for (int i = 0; i < 640 * 480 * 3; i++) { + fb[i] = 100; + } + regs.ax = 0x0000; + int32(0x16, ®s); + regs.ax = 0x0003; + int32(0x10, ®s); + + return vbe_info; + } else { + // Add VGA redirect + } + + vbe_mode_info vbe_info; + return &vbe_info; +} |