Fix situation where no back buffer exists when using CNFGRASTERIZER

CNFGFunctions.c

@@ -33,10 +33,6 @@ OTHER DEALINGS IN THE SOFTWARE.
 #include "TextTool/FontData.h"
 #endif
 
-//TODO: Refactor to remove malloc reliance.
-#ifndef __clang__
-#endif
-
 int CNFGPenX, CNFGPenY;
 uint32_t CNFGBGColor;
 uint32_t CNFGLastColor;

CNFGXDriver.c

@@ -549,7 +549,7 @@ void CNFGUpdateScreenWithBitmap( uint32_t * data, int w, int h )
 {
 	static int lw, lh;
 
-	if( lw != w || lh != h )
+	if( lw != w || lh != h || !xi )
 	{
 		if( xi ) free( xi );
 		xi = XCreateImage(CNFGDisplay, CNFGVisual, CNFGDepth, ZPixmap, 0, (char*)data, w, h, 32, w*4 );

rawdraw_sf.h

@@ -1,5 +1,5 @@
 //This file was automatically generated by Makefile at https://github.com/cntools/rawdraw
-//Generated from files git hash ce81fa80a8ae034546fa93b392b282fe9815319c on Sat May 11 07:49:24 PM PDT 2024 (This is not the git hash of this file)
+//Generated from files git hash a53ea30df86f5876197873975efee3dbc983a942 on Mon Jun 10 06:52:08 PM PDT 2024 (This is not the git hash of this file)
 // Copyright 2010-2021 <>< CNLohr, et. al. (Several other authors, many but not all mentioned)
 //	Licensed under the MIT/x11 or NewBSD License you choose.
 //
@@ -6078,7 +6078,7 @@ void CNFGUpdateScreenWithBitmap( uint32_t * data, int w, int h )
 {
 	static int lw, lh;
 
-	if( lw != w || lh != h )
+	if( lw != w || lh != h || !xi )
 	{
 		if( xi ) free( xi );
 		xi = XCreateImage(CNFGDisplay, CNFGVisual, CNFGDepth, ZPixmap, 0, (char*)data, w, h, 32, w*4 );