diff -Naur include/vector2d.h include/vector2d.h
--- include/vector2d.h	2005-03-01 14:43:46.756327119 +0100
+++ include/vector2d.h	2005-03-11 00:09:59.000000000 +0100
@@ -56,7 +56,7 @@
 
 	//! Returns the length of the vector
 	//! \return Returns the length of the vector.
-	f64 getLength() const { return sqrt(X*X + Y*Y); }
+	f64 getLength() const { return hypot(X, Y); }
 
 	//! Returns the dot product of this vector with an other.
 	T dotProduct(const vector2d<T>& other) const
@@ -159,7 +159,7 @@
 		if (tmp == 0.0)
 			return 90.0;
 
-		tmp = tmp / sqrt((X*X + Y*Y) * (b.X*b.X + b.Y*b.Y));
+		tmp = tmp / (hypot(X, Y) * hypot(b.X, b.Y));
 		if (tmp < 0.0) tmp = -tmp;
 
 		return atan(sqrt(1 - tmp*tmp) / tmp) * GRAD_PI;
diff -Naur source/Irrlicht.old/CIrrDeviceLinux.cpp Irrlicht/CIrrDeviceLinux.cpp
--- source/Irrlicht.old/CIrrDeviceLinux.cpp	2005-04-04 11:01:38.501505032 +0200
+++ source/Irrlicht/CIrrDeviceLinux.cpp	2005-03-13 01:26:21.000000000 +0100
@@ -701,16 +701,15 @@
 			int destPitch = SoftwareImage->bytes_per_line / 2;
 			s16* destData = reinterpret_cast<s16*>(SoftwareImage->data);
 			
-			for (int x=0; x<srcwidth; ++x)
-				for (int y=0; y<srcheight; ++y)
-					if (x < destwidth && y < destheight)
-					{
-						s16 c = srcdata[y*srcwidth+x];
-						destData[y*destPitch + x] = 
-							((c >> 10)&0x1F)<<11 |
-							((c >> 5)&0x1F) << 6 |
-							((c)&0x1F);
-					}
+			int ssy = 0, sdy = 0;
+			for (int y=0; y<srcheight && y<destheight; ++y)
+			{
+				for (int x=0; x<srcwidth && x < destwidth; ++x)
+					destData[sdy + x] = 
+					video::A1R5G5B5toR5G6B5(srcdata[ssy+x]);
+				ssy += srcwidth;
+				sdy += destPitch;
+			}
 		}
 		else
 		if (depth == 32)
@@ -720,11 +719,15 @@
 			int destPitch = SoftwareImage->bytes_per_line / 4;
 			s32* destData = reinterpret_cast<s32*>(SoftwareImage->data);
 			
-			for (int y=0; y<srcheight; ++y)
-				for (int x=0; x<srcwidth; ++x)
-					if (x < destwidth && y < destheight)
-						destData[y*destPitch + x] = 
-						video::A1R5G5B5toA8R8G8B8(srcdata[y*srcwidth+x]);	
+			int ssy = 0, sdy = 0;
+			for (int y=0; y<srcheight && y<destheight; ++y)
+			{
+				for (int x=0; x<srcwidth && x<destwidth; ++x)
+					destData[sdy+x] = 
+					video::A1R5G5B5toA8R8G8B8(srcdata[ssy+x]);
+				ssy += srcwidth;
+				sdy += destPitch;
+			}
 		}
 		else
 		if (depth == 24)
@@ -734,11 +737,15 @@
 			int destPitch = SoftwareImage->bytes_per_line / 4;
 			s32* destData = reinterpret_cast<s32*>(SoftwareImage->data);
 			
-			for (int y=0; y<srcheight; ++y)
-				for (int x=0; x<srcwidth; ++x)
-					if (x < destwidth && y < destheight)
-						destData[y*destPitch + x] = 
-						video::A1R5G5B5toA8R8G8B8(srcdata[y*srcwidth+x]);
+			int ssy = 0, sdy = 0;
+			for (int y=0; y<srcheight && y<destheight; ++y)
+			{
+				for (int x=0; x<srcwidth && x<destwidth; ++x)
+					destData[sdy+x] = 
+					video::A1R5G5B5toA8R8G8B8(srcdata[ssy+x]);	
+				ssy += srcwidth;
+				sdy += destPitch;
+			}
 		}
 		else
 		{