[Scummvm-cvs-logs] CVS: scummvm/common system.h,1.98,1.99

[Max Horn]

Update of /cvsroot/scummvm/scummvm/common
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25939/common

Modified Files:
	system.h 
Log Message:
Added two new methods to OSystem: grabPalette and grabRawScreen

Index: system.h
===================================================================
RCS file: /cvsroot/scummvm/scummvm/common/system.h,v
retrieving revision 1.98
retrieving revision 1.99
diff -u -d -r1.98 -r1.99
--- system.h	8 May 2005 17:44:54 -0000	1.98
+++ system.h	8 May 2005 21:39:02 -0000	1.99
@@ -28,6 +28,10 @@
 #include "common/rect.h"
 #include "common/singleton.h"
 
+namespace Graphics {
+class Surface;
+} // end of namespace Graphics
+
 class SaveFileManager;
 
 /**
@@ -361,6 +365,16 @@
 	 *       API are probably going to remove it.
 	 */
 	virtual void setPalette(const byte *colors, uint start, uint num) = 0;
+	
+	/**
+	 * Grabs a specified part of the currently active palette.
+	 * The format is the same as for setPalette.
+	 *
+	 * @param buf	the buffer
+	 * @param start	the first platte entry
+	 * @param num	nummber of the entries
+	 */
+	virtual void grabPalette(byte *colors, uint start, uint num) = 0;
 
 	/**
 	 * Blit a bitmap to the virtual screen.
@@ -371,6 +385,16 @@
 	 * @see updateScreen
 	 */
 	virtual void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h) = 0;
+
+	/**
+	 * Copies the current screen contents to a new surface, with the original
+	 * bit depth. This will allocate memory for the pixel data.
+	 * WARNING: surf->free() must be called by the user to avoid leaking.
+	 *
+	 * @param surf	the surfce to store the data in it
+	 * @return true if all went well, false if an error occured
+	 */
+	virtual bool grabRawScreen(Graphics::Surface *surf) { return false; }
 	
 	/**
 	 * Clear the screen to black.