From ad8d7a1efb8c61bb39568f76ab814919895cc501 Mon Sep 17 00:00:00 2001
From: Simon Howard
Date: Tue, 3 Aug 2010 20:12:36 +0000
Subject: When in windowed mode, allow the screen size to be dynamically
 resized by dragging the window borders.

Subversion-branch: /trunk/chocolate-doom
Subversion-revision: 1949
---
 src/i_scale.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'src/i_scale.c')

diff --git a/src/i_scale.c b/src/i_scale.c
index a022ab15..3f7b3a7d 100644
--- a/src/i_scale.c
+++ b/src/i_scale.c
@@ -53,11 +53,11 @@ static int dest_pitch;
 // stretch_tables[1] : 40% / 60%
 // All other combinations can be reached from these two tables.
 
-static byte *stretch_tables[2];
+static byte *stretch_tables[2] = { NULL, NULL };
 
 // 50%/50% stretch table, for 800x600 squash mode
 
-static byte *half_stretch_table;
+static byte *half_stretch_table = NULL;
 
 // Called to set the source and destination buffers before doing the
 // scale.
@@ -364,6 +364,11 @@ static byte *GenerateStretchTable(byte *palette, int pct)
 
 static void I_InitStretchTables(byte *palette)
 {
+    if (stretch_tables[0] != NULL)
+    {
+        return;
+    }
+
     // We only actually need two lookup tables:
     //
     // mix 0%   =  just write line 1
@@ -385,6 +390,11 @@ static void I_InitStretchTables(byte *palette)
 
 static void I_InitSquashTable(byte *palette)
 {
+    if (half_stretch_table != NULL)
+    {
+        return;
+    }
+
     printf("I_InitSquashTable: Generating lookup table..");
     fflush(stdout);
     half_stretch_table = GenerateStretchTable(palette, 50);
-- 
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