// Video Bios Extensions handlers
//
-// Copyright (C) 2009 Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2012 Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2011 Julian Pidancet <julian.pidancet@citrix.com>
// Copyright (C) 2001-2008 the LGPL VGABios developers Team
//
// This file may be distributed under the terms of the GNU LGPLv3 license.
, 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;
static void
vbe_104f08(struct bregs *regs)
{
- debug_stub(regs);
- regs->ax = 0x0100;
+ struct vgamode_s *vmode_g = get_current_mode();
+ if (! vmode_g)
+ goto fail;
+ u8 memmodel = GET_GLOBAL(vmode_g->memmodel);
+ if (memmodel == MM_DIRECT || memmodel == MM_YUV) {
+ regs->ax = 0x034f;
+ return;
+ }
+ if (regs->bl > 1)
+ goto fail;
+ if (regs->bl == 0) {
+ int ret = vgahw_set_dacformat(vmode_g, regs->bh);
+ if (ret < 0)
+ goto fail;
+ }
+ int ret = vgahw_get_dacformat(vmode_g);
+ if (ret < 0)
+ goto fail;
+ regs->bh = ret;
+ regs->ax = 0x004f;
+ return;
+fail:
+ regs->ax = 0x014f;
}
static void