SCI: Fixed bug #3039775 - "KQ4: Graphics glitch in the mansion tower"

1 files changed, 8 insertions, 8 deletions

diff --git a/engines/sci/graphics/paint16.cpp b/engines/sci/graphics/paint16.cpp
index 53c43d94c3..20900c8f8d 100644
--- a/engines/sci/graphics/paint16.cpp
+++ b/engines/sci/graphics/paint16.cpp
@@ -378,14 +378,14 @@ void GfxPaint16::kernelDrawPicture(GuiResourceId pictureId, int16 animationNr, b
 		drawPicture(pictureId, animationNr, mirroredFlag, addToFlag, EGApaletteNo);
 		_transitions->setup(animationNr, animationBlackoutFlag);
 	} else {
-		// We need to set it for SCI1EARLY+ (sierra sci also did so), otherwise we get at least the following issues:
-		//  LSL5 (english) - last wakeup (taj mahal flute dream)
-		//  SQ5 (english v1.03) - during the scene following the scrubbing
-		//   in both situations a window is shown when kDrawPic is called, which would result otherwise in
-		//   no showpic getting called from kAnimate and we would get graphic corruption
-		// XMAS1990 EGA did not set it in this case, VGA did
-		if (getSciVersion() >= SCI_VERSION_1_EARLY)
-			_screen->_picNotValid = 1;
+		// The picture window is not in the front, which means that there is a
+		// textbox shown above it. We need to invalidate the old picture
+		// otherwise it will never be shown by kAnimate. Here are some
+		// examples where this occurs:
+		// - LSL5 (english) - last wakeup (taj mahal flute dream)
+		// - SQ5 (english v1.03) - during the scene following the scrubbing
+		// - KQ4 (all versions) - falling off the staircase (bug #3039775)
+		_screen->_picNotValid = 1;
 		_ports->beginUpdate(_ports->_picWind);
 		drawPicture(pictureId, animationNr, mirroredFlag, addToFlag, EGApaletteNo);
 		_ports->endUpdate(_ports->_picWind);