X-Git-Url: http://git.jankratochvil.net/?p=reactos.git;a=blobdiff_plain;f=drivers%2Fdd%2Fvga%2Fdisplay%2Fobjects%2Foffscreen.c;h=b01ad60ea7cc95239128ea315570cf36faa0913c;hp=4c8fba8dca88ed54f1ea824b796e5b7eca0d4fde;hb=03af8776dc14167b078911b0c7c5327d1bcdd128;hpb=f4077c1bf64ef89d74a8d4822d2d7aada3ba9927

diff --git a/drivers/dd/vga/display/objects/offscreen.c b/drivers/dd/vga/display/objects/offscreen.c
index 4c8fba8..b01ad60 100644
--- a/drivers/dd/vga/display/objects/offscreen.c
+++ b/drivers/dd/vga/display/objects/offscreen.c
@@ -54,7 +54,8 @@ VGADDI_BltFromSavedScreenBits(ULONG DestX,
   for (i = 0; i < SizeY; i++)
     {
       DestOffset = (PUCHAR)vidmem + (i + DestY) * 80 + (DestX >> 3);
-      for (j = 0; j < SizeX; j++, SrcOffset++, DestOffset++)
+	  //FIXME: in the loop below we should treat the case when SizeX is not divisible by 8, i.e. partial bytes
+      for (j = 0; j < SizeX>>3; j++, SrcOffset++, DestOffset++)
 	{
 	  (VOID)READ_REGISTER_UCHAR(SrcOffset);
 	  WRITE_REGISTER_UCHAR(DestOffset, 0);
@@ -86,7 +87,8 @@ VGADDI_BltToSavedScreenBits(PSAVED_SCREEN_BITS Dest,
   for (i = 0; i < SizeY; i++)
     {
       SrcOffset = (PUCHAR)vidmem + (SourceY + i) * 80 + (SourceX >> 3);
-      for (j = 0; j < SizeX; j++, SrcOffset++, DestOffset++)
+	  //FIXME: in the loop below we should treat the case when SizeX is not divisible by 8, i.e. partial bytes
+	  for (j = 0; j < SizeX>>3; j++, SrcOffset++, DestOffset++)
 	{
 	  (VOID)READ_REGISTER_UCHAR(SrcOffset);
 	  WRITE_REGISTER_UCHAR(DestOffset, 0);
@@ -107,7 +109,7 @@ VGADDI_FreeSavedScreenBits(PSAVED_SCREEN_BITS SavedBits)
     {
       PSAVED_SCREEN_BITS Previous;
 
-      Previous = CONTAINING_RECORD(SavedBits->ListEntry.Blink, 
+      Previous = CONTAINING_RECORD(SavedBits->ListEntry.Blink,
 				   SAVED_SCREEN_BITS, ListEntry);
       if (Previous->Free)
 	{
@@ -121,7 +123,7 @@ VGADDI_FreeSavedScreenBits(PSAVED_SCREEN_BITS SavedBits)
     {
       PSAVED_SCREEN_BITS Next;
 
-      Next = CONTAINING_RECORD(SavedBits->ListEntry.Flink, SAVED_SCREEN_BITS, 
+      Next = CONTAINING_RECORD(SavedBits->ListEntry.Flink, SAVED_SCREEN_BITS,
 			       ListEntry);
       if (Next->Free)
 	{