From 72e2a732df2f149cfe3672a41c4510ff2a3c8fa0 Mon Sep 17 00:00:00 2001
From: Sjoerd van der Berg <harekiet@users.sourceforge.net>
Date: Wed, 3 Sep 2003 20:36:28 +0000
Subject: [PATCH] Text mode uses start address now. Support for double lined
 vesa modes.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1226
---
 src/hardware/vga_draw.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/hardware/vga_draw.cpp b/src/hardware/vga_draw.cpp
index 59ae43ec..cbdb01c5 100644
--- a/src/hardware/vga_draw.cpp
+++ b/src/hardware/vga_draw.cpp
@@ -99,7 +99,7 @@ static void VGA_TANDY16_Draw(Bit8u * bitdata,Bitu pitch) {
 
 
 void VGA_TEXT_Draw(Bit8u * bitdata,Bitu start,Bitu panning,Bitu rows) {
-	Bit8u * reader=&vga.mem.linear[0];
+	Bit8u * reader=&vga.mem.linear[start*2];
 	Bit8u * draw_start=bitdata;
 /* Todo Blinking and high intensity colors */
 	Bitu next_charline=vga.draw.font_height*vga.draw.width;
@@ -344,6 +344,13 @@ void VGA_SetupDrawing(void) {
 		break;
 	case M_LIN8:
 		width<<=3;
+		if (vga.draw.double_width) width>>=1;
+		if (!vga.draw.double_height) {
+			if (vga.config.vline_height&1) {
+				vga.draw.double_height=true;
+				vga.draw.font_height/=2;
+			}
+		}
 		pitch=vga.config.scan_len*8;
 		break;
 	case M_EGA16:
@@ -390,7 +397,7 @@ void VGA_SetupDrawing(void) {
 		vga.draw.height=height;
 		vga.draw.pitch=pitch;
 
-		LOG(LOG_VGA,LOG_NORMAL)("Width %d, Height %d",width,height);
+		LOG(LOG_VGA,LOG_NORMAL)("Width %d, Height %d, Pitch %d",width,height,pitch);
 		LOG(LOG_VGA,LOG_NORMAL)("Flags %X, fps %f",flags,fps);
 		RENDER_SetSize(width,height,8,pitch,((float)width/(float)height),flags,&VGA_DrawHandler);
 		vga.draw.blank=(Bitu)(1000000/fps);