SCI: kDrawPic setting _picNotValid on non-front

fixes lsl5 english graphic corruption during taj mahal wakeup, should also fix sq5 1.03 graphic corruption right after scrubbing (bug #3041069)

save for backporting

svn-id: r52911

1 files changed, 8 insertions, 0 deletions

diff --git a/engines/sci/graphics/paint16.cpp b/engines/sci/graphics/paint16.cpp
index dbc738e2f7..3c115f0c8e 100644
--- a/engines/sci/graphics/paint16.cpp
+++ b/engines/sci/graphics/paint16.cpp
@@ -380,6 +380,14 @@ 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;
 		_ports->beginUpdate(_ports->_picWind);
 		drawPicture(pictureId, animationNr, mirroredFlag, addToFlag, EGApaletteNo);
 		_ports->endUpdate(_ports->_picWind);