| 30,8 → 30,10 |
|---|
| #include <genarch/fb/fb.h> |
| #include <console/chardev.h> |
| #include <console/console.h> |
| #include <mm/slab.h> |
| #include <panic.h> |
| #include <memstr.h> |
| #include <config.h> |
| |
| #include "helenos.xbm" |
| |
| 39,6 → 41,8 |
|---|
| |
| static __u8 *fbaddress = NULL; |
| |
| static __u8 *blankline = NULL; |
| |
| static unsigned int xres = 0; |
| static unsigned int yres = 0; |
| static unsigned int scanline = 0; |
| 159,12 → 163,24 |
|---|
| static void scroll_screen(void) |
| { |
| unsigned int i; |
| __u8 *lastline = &fbaddress[(rows - 1) * ROW_BYTES]; |
| |
| memcpy((void *) fbaddress, (void *) &fbaddress[ROW_BYTES], scanline * yres - ROW_BYTES); |
| |
| /* Clear last row */ |
| for (i = 0; i < FONT_SCANLINES; i++) |
| clear_line((rows - 1) * FONT_SCANLINES + i); |
| if (blankline) { |
| memcpy((void *) lastline, (void *) blankline, ROW_BYTES); |
| } else { |
| for (i = 0; i < FONT_SCANLINES; i++) |
| clear_line((rows - 1) * FONT_SCANLINES + i); |
| |
| if (config.mm_initialized) { |
| /* Save a blank line aside. */ |
| blankline = (__u8 *) malloc(ROW_BYTES, FRAME_ATOMIC); |
| if (blankline) |
| memcpy((void *) blankline, (void *) lastline, ROW_BYTES); |
| } |
| } |
| } |
| |
| |