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cirrus: Force use of shadow pixmap when HW cursor is enabled 

The HW cursor cannot be painted on a shared surface. This fixes HW
cursor display in Windows NT 4.0 and Windows 98.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Benjamin Herrenschmidt 2014-07-07 10:28:39 +10:00 committed by Gerd Hoffmann
parent 5508099397
commit b9fd11b867
1 changed files with 8 additions and 1 deletions
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9
hw/display/cirrus_vga.c
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@ -1351,7 +1351,6 @@ static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
case 0x0d: // VCLK 2
case 0x0e: // VCLK 3
case 0x0f: // DRAM Control
case 0x12: // Graphics Cursor Attribute
case 0x13: // Graphics Cursor Pattern Address
case 0x14: // Scratch Register 2
case 0x15: // Scratch Register 3
@ -1370,6 +1369,14 @@ static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
s->vga.sr_index, val);
#endif
break;
case 0x12: // Graphics Cursor Attribute
s->vga.sr[0x12] = val;
s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW);
#ifdef DEBUG_CIRRUS
printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n",
val, s->vga.force_shadow);
#endif
break;
case 0x17: // Configuration Readback and Extended Control
s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
| (val & 0xc7);