From 190e5aa920e9e4d8526fcf0cb67c247d01058c34 Mon Sep 17 00:00:00 2001 From: Peter Veenstra Date: Wed, 28 Sep 2005 09:23:07 +0000 Subject: [PATCH] Add patch 1302908 from vasyl. Fixes vectorballs in unreal demo Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2325 --- src/hardware/vga_draw.cpp | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/hardware/vga_draw.cpp b/src/hardware/vga_draw.cpp index 92172764..3544d0f1 100644 --- a/src/hardware/vga_draw.cpp +++ b/src/hardware/vga_draw.cpp @@ -35,7 +35,9 @@ static Bit8u * VGA_Draw_1BPP_Line(Bitu vidstart,Bitu panning,Bitu line) { line*=8*1024;Bit32u * draw=(Bit32u *)TempLine; for (Bitu x=vga.draw.blocks;x>0;x--) { Bitu val=vga.mem.linear[vidstart+line]; - vidstart=(vidstart+1)&0x1dfff; + vidstart++; + if((vga.crtc.mode_control & 0x01) == 0) // CGA compatible addressing + vidstart &= 0x1dfff; *draw++=CGA_2_Table[val >> 4]; *draw++=CGA_2_Table[val & 0xf]; } @@ -46,7 +48,9 @@ static Bit8u * VGA_Draw_2BPP_Line(Bitu vidstart,Bitu panning,Bitu line) { line*=8*1024;Bit32u * draw=(Bit32u *)TempLine; for (Bitu x=0;x