From 2f908ec72358576cd0802a987be69ab275b56778 Mon Sep 17 00:00:00 2001
From: Aleksandar Andrejevic <aandrejevic@reactos.org>
Date: Fri, 9 Aug 2013 09:24:40 +0000
Subject: [PATCH] [NTVDM] Calculate the text height instead of using a
 hardcoded value.

svn path=/branches/ntvdm/; revision=59674
---
 subsystems/ntvdm/vga.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/subsystems/ntvdm/vga.c b/subsystems/ntvdm/vga.c
index e13cf71e315..a535048a680 100644
--- a/subsystems/ntvdm/vga.c
+++ b/subsystems/ntvdm/vga.c
@@ -569,6 +569,7 @@ DWORD VgaGetVideoLimitAddress(VOID)
 COORD VgaGetDisplayResolution(VOID)
 {
     COORD Resolution;
+    BYTE TextSize = 1 + (VgaCrtcRegisters[VGA_CRTC_MAX_SCAN_LINE_REG] & 0x1F);
 
     /* The low 8 bits are in the display registers */
     Resolution.X = VgaCrtcRegisters[VGA_CRTC_END_HORZ_DISP_REG];
@@ -603,7 +604,7 @@ COORD VgaGetDisplayResolution(VOID)
     else
     {
         /* Divide the number of scanlines by the font size */
-        Resolution.Y /= 16;
+        Resolution.Y /= TextSize;
     }
 
     /* Return the resolution */