diff options
Diffstat (limited to 'kernel/src/misc')
| -rw-r--r-- | kernel/src/misc/graphics.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/kernel/src/misc/graphics.c b/kernel/src/misc/graphics.c index 9c8dc9a..7c68b36 100644 --- a/kernel/src/misc/graphics.c +++ b/kernel/src/misc/graphics.c @@ -8,18 +8,14 @@ volatile fb_t main_fb; -uint32_t* pixel_offset(volatile fb_t fb, uint32_t x, uint32_t y) -{ - return (uint32_t*)((char*)fb.addr + y * fb.pitch + x * fb.bpp / 8); -} - void fb_draw_pixel(volatile fb_t fb, int32_t x, int32_t y, uint32_t col) { if (x < 0 || y < 0) return; if (x >= (int32_t)fb.width || y >= (int32_t)fb.height) return; - uint32_t* fb_offset = pixel_offset(fb, (uint32_t)x, (uint32_t)y); - *fb_offset = col; + uint32_t fb_offset = (uint32_t)y * fb.pitch + (uint32_t)x * fb.bpp / 8; + uint32_t* fb_buff = (uint32_t*)fb.addr; + fb_buff[fb_offset / 4] = col; } /* https://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm */ |