[Scummvm-cvs-logs] CVS: scummvm/common system.h,1.95,1.96

[Max Horn]

Update of /cvsroot/scummvm/scummvm/common
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv20409/common

Modified Files:
	system.h 
Log Message:
Replace OSystem::hasAlpha with a feature flag

Index: system.h
===================================================================
RCS file: /cvsroot/scummvm/scummvm/common/system.h,v
retrieving revision 1.95
retrieving revision 1.96
diff -u -d -r1.95 -r1.96
--- system.h	19 Apr 2005 20:22:48 -0000	1.95
+++ system.h	19 Apr 2005 20:35:47 -0000	1.96
@@ -110,7 +110,12 @@
 		 * Entertainment games. If backend doesn't implement this feature then
 		 * engine switches to b/w version of cursors.
 		 */
-		kFeatureCursorHasPalette
+		kFeatureCursorHasPalette,
+
+		/**
+		 * Set to true if the overlay pixel format has an alpha channel.
+		 */
+		kFeatureOverlaySupportsAlpha
 	};
 	
 	/**
@@ -461,13 +466,6 @@
 	virtual int overlayToScreenY(int y) { return y; }
 
 	/**
-	 * Return true if the overlay pixel format has an alpha channel.
-	 */
-	virtual bool hasAlpha() const {
-		return false;
-	}
-
-	/**
 	* Convert the given RGB triplet into an OverlayColor. A OverlayColor can
 	 * be 8bit, 16bit or 32bit, depending on the target system. The default
 	 * implementation generates a 16 bit color value, in the 565 format