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ati-vga: Fix frame buffer endianness for big endian target

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The extended mode frame buffer should be little endian even when
emulating big endian machine (such as PPC). This fixes color problems
with MorphOS.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 439aa85061f103446df7b42632d730971a372432.1562151410.git.balaton@eik.bme.hu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
BALATON Zoltan 2019-07-03 12:56:50 +02:00 committed by Gerd Hoffmann
parent c799d2ee7e
commit a38127414b
2 changed files with 6 additions and 5 deletions
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1
hw/display/ati.c
View File

@ -89,6 +89,7 @@ static void ati_vga_switch_mode(ATIVGAState *s)
DPRINTF("Switching to %dx%d %d %d @ %x\n", h, v, stride, bpp, offs);
vbe_ioport_write_index(&s->vga, 0, VBE_DISPI_INDEX_ENABLE);
vbe_ioport_write_data(&s->vga, 0, VBE_DISPI_DISABLED);
s->vga.big_endian_fb = false;
/* reset VBE regs then set up mode */
s->vga.vbe_regs[VBE_DISPI_INDEX_XRES] = h;
s->vga.vbe_regs[VBE_DISPI_INDEX_YRES] = v;

10
hw/display/ati_2d.c
View File

@ -124,15 +124,15 @@ void ati_2d_blt(ATIVGAState *s)
switch (s->regs.dp_mix & GMC_ROP3_MASK) {
case ROP3_PATCOPY:
filler = bswap32(s->regs.dp_brush_frgd_clr);
filler = s->regs.dp_brush_frgd_clr;
break;
case ROP3_BLACKNESS:
filler = rgb_to_pixel32(s->vga.palette[0], s->vga.palette[1],
s->vga.palette[2]) << 8 | 0xff;
filler = 0xffUL << 24 | rgb_to_pixel32(s->vga.palette[0],
s->vga.palette[1], s->vga.palette[2]);
break;
case ROP3_WHITENESS:
filler = rgb_to_pixel32(s->vga.palette[3], s->vga.palette[4],
s->vga.palette[5]) << 8 | 0xff;
filler = 0xffUL << 24 | rgb_to_pixel32(s->vga.palette[3],
s->vga.palette[4], s->vga.palette[5]);
break;
}