[Scummvm-cvs-logs] SF.net SVN: scummvm:[45566] scummvm/trunk/engines/sci/gui/gui_screen.cpp

[thebluegr at users.sourceforge.net]

Revision: 45566
          http://scummvm.svn.sourceforge.net/scummvm/?rev=45566&view=rev
Author:   thebluegr
Date:     2009-10-31 17:02:11 +0000 (Sat, 31 Oct 2009)

Log Message:
-----------
Slight optimization to the 2x scaler

Modified Paths:
--------------
    scummvm/trunk/engines/sci/gui/gui_screen.cpp

Modified: scummvm/trunk/engines/sci/gui/gui_screen.cpp
===================================================================
--- scummvm/trunk/engines/sci/gui/gui_screen.cpp	2009-10-31 15:44:59 UTC (rev 45565)
+++ scummvm/trunk/engines/sci/gui/gui_screen.cpp	2009-10-31 17:02:11 UTC (rev 45566)
@@ -495,15 +495,16 @@
 
 void SciGuiScreen::scale2x(byte *src, byte *dst, int16 srcWidth, int16 srcHeight) {
 	int newWidth = srcWidth * 2;
+	byte *srcPtr = src;
 
 	for (int y = 0; y < srcHeight; y++) {
 		for (int x = 0; x < srcWidth; x++) {
 			int destOffset = y * 2 * newWidth + x * 2;
-			int color = src[y * srcWidth + x];
-			dst[destOffset] = color;
-			dst[destOffset + 1] = color;
-			dst[destOffset + newWidth] = color;
-			dst[destOffset + newWidth + 1] = color;
+			dst[destOffset] = *srcPtr;
+			dst[destOffset + 1] = *srcPtr;
+			dst[destOffset + newWidth] = *srcPtr;
+			dst[destOffset + newWidth + 1] = *srcPtr;
+			srcPtr++;
 		}
 	}
 }


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