From b97a2ae1ca2036889c763d1823a2b793c38658e9 Mon Sep 17 00:00:00 2001
From: Joachim Henze <Joachim.Henze@reactos.org>
Date: Fri, 15 Jan 2021 14:29:57 +0100
Subject: [PATCH] [0.4.13][NTOS:INBV] Fix screen flash and more (#2821)

- Fix screen flash (CORE-16786);
- Don't process rotating bar if not used.

cherry picked from commit 0.4.15-dev-287-g 319374eb719f675b91e8380e836b31affb824e2b
---
 ntoskrnl/inbv/inbv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ntoskrnl/inbv/inbv.c b/ntoskrnl/inbv/inbv.c
index f5cd5652493..cbcf54694f6 100644
--- a/ntoskrnl/inbv/inbv.c
+++ b/ntoskrnl/inbv/inbv.c
@@ -1277,12 +1277,12 @@ DisplayBootBitmap(IN BOOLEAN TextMode)
 #endif
 
 #ifdef INBV_ROTBAR_IMPLEMENTED
-        if (Bar)
+        if ((TempRotBarSelection == RB_SQUARE_CELLS) && Bar)
         {
             /* Save previous screen pixels to buffer */
             InbvScreenToBufferBlt(Buffer, 0, 0, 22, 9, 24);
             /* Draw the progress bar bit */
-            InbvBitBlt(Bar, 0, 0);
+            BitBltPalette(Bar, TRUE, 0, 0);
             /* Store it in global buffer */
             InbvScreenToBufferBlt(RotBarBuffer, 0, 0, 22, 9, 24);
             /* Restore screen pixels */