diff --git a/src/gl/textures/gl_hwtexture.cpp b/src/gl/textures/gl_hwtexture.cpp
index ac789504e..f6edec687 100644
--- a/src/gl/textures/gl_hwtexture.cpp
+++ b/src/gl/textures/gl_hwtexture.cpp
@@ -93,8 +93,8 @@ void FHardwareTexture::Resize(int width, int height, unsigned char *src_data, un
 	// down we will need to gather a grid of pixels of the size of the scale
 	// factor in each direction and then do an averaging of the pixels.
 
-	TArray<BoxPrecalc> vPrecalcs(height);
-	TArray<BoxPrecalc> hPrecalcs(width);
+	TArray<BoxPrecalc> vPrecalcs(height, true);
+	TArray<BoxPrecalc> hPrecalcs(width, true);
 
 	ResampleBoxPrecalc(vPrecalcs, texheight);
 	ResampleBoxPrecalc(hPrecalcs, texwidth);
diff --git a/src/tarray.h b/src/tarray.h
index 92a456550..acc080012 100644
--- a/src/tarray.h
+++ b/src/tarray.h
@@ -132,10 +132,10 @@ public:
 		Count = 0;
 		Array = NULL;
 	}
-	TArray (int max)
+	TArray (int max, bool reserve = false)
 	{
 		Most = max;
-		Count = 0;
+		Count = reserve? max : 0;
 		Array = (T *)M_Malloc (sizeof(T)*max);
 	}
 	TArray (const TArray<T,TT> &other)