Commit b9fd11b8 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Gerd Hoffmann
Browse files

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: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 55080993

hw/display/cirrus_vga.c

+8 −1
Original line number Diff line number Diff line
@@ -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
@@ -1368,6 +1367,14 @@ static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val) 
#ifdef DEBUG_CIRRUS

	printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",

	       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