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| author | Kevin O'Connor <kevin@koconnor.net> | 2012-01-29 11:42:44 -0500 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2012-02-01 21:58:38 -0500 |
| commit | 3524453b5d5eca4ec352f099e0cc8419a1ac778d (patch) | |
| tree | c4af2defabb540731dfec3f07c41d49c4b8cf4c0 /vgasrc/vbe.c | |
| parent | 2af8ba1ab23d01006b080e57900325e35f464481 (diff) | |
| download | qemu-seabios-3524453b5d5eca4ec352f099e0cc8419a1ac778d.tar.gz | |
vgabios: Fix linelength calculations in bochsvga and vbe.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'vgasrc/vbe.c')
| -rw-r--r-- | vgasrc/vbe.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/vgasrc/vbe.c b/vgasrc/vbe.c index 55ad97e..77b0934 100644 --- a/vgasrc/vbe.c +++ b/vgasrc/vbe.c @@ -108,25 +108,20 @@ vbe_104f01(struct bregs *regs) , SEGOFF(get_global_seg(), (u32)entry_104f05)); int width = GET_GLOBAL(vmode_g->width); int height = GET_GLOBAL(vmode_g->height); - int linesize = width * DIV_ROUND_UP(depth, 8); + int linesize = DIV_ROUND_UP(width * vga_bpp(vmode_g), 8); SET_FARVAR(seg, info->bytes_per_scanline, linesize); SET_FARVAR(seg, info->xres, width); SET_FARVAR(seg, info->yres, height); SET_FARVAR(seg, info->xcharsize, GET_GLOBAL(vmode_g->cwidth)); SET_FARVAR(seg, info->ycharsize, GET_GLOBAL(vmode_g->cheight)); - if (depth == 4) - SET_FARVAR(seg, info->planes, 4); - else - SET_FARVAR(seg, info->planes, 1); + int planes = (depth == 4) ? 4 : 1; + SET_FARVAR(seg, info->planes, planes); SET_FARVAR(seg, info->bits_per_pixel, depth); SET_FARVAR(seg, info->banks, 1); SET_FARVAR(seg, info->mem_model, GET_GLOBAL(vmode_g->memmodel)); SET_FARVAR(seg, info->bank_size, 0); u32 pages = GET_GLOBAL(VBE_total_memory) / (height * linesize); - if (depth == 4) - SET_FARVAR(seg, info->pages, (pages / 4) - 1); - else - SET_FARVAR(seg, info->pages, pages - 1); + SET_FARVAR(seg, info->pages, (pages / planes) - 1); SET_FARVAR(seg, info->reserved0, 1); u8 r_size, r_pos, g_size, g_pos, b_size, b_pos, a_size, a_pos; |