mirror of https://github.com/xemu-project/xemu.git
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>
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@ -1351,7 +1351,6 @@ static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
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case 0x0d: // VCLK 2
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case 0x0e: // VCLK 3
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case 0x0f: // DRAM Control
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case 0x12: // Graphics Cursor Attribute
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case 0x13: // Graphics Cursor Pattern Address
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case 0x14: // Scratch Register 2
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case 0x15: // Scratch Register 3
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@ -1370,6 +1369,14 @@ static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
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s->vga.sr_index, val);
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#endif
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break;
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case 0x12: // Graphics Cursor Attribute
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s->vga.sr[0x12] = val;
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s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW);
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#ifdef DEBUG_CIRRUS
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printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n",
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val, s->vga.force_shadow);
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#endif
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break;
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case 0x17: // Configuration Readback and Extended Control
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s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
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| (val & 0xc7);
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