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-rw-r--r--engines/sci/graphics/palette.cpp22
1 files changed, 18 insertions, 4 deletions
diff --git a/engines/sci/graphics/palette.cpp b/engines/sci/graphics/palette.cpp
index 2135adcc62..346a4c075c 100644
--- a/engines/sci/graphics/palette.cpp
+++ b/engines/sci/graphics/palette.cpp
@@ -614,9 +614,18 @@ bool GfxPalette::kernelPalVaryInit(GuiResourceId resourceId, uint16 ticks, uint1
_palVaryStepStop = stepStop;
_palVaryDirection = direction;
// if no ticks are given, jump directly to destination
- if (!_palVaryTicks)
+ if (!_palVaryTicks) {
_palVaryDirection = stepStop;
- palVaryInstallTimer();
+ // sierra sci set the timer to 1 tick instead of calling it directly
+ // we have to change this to prevent a race condition to happen in
+ // at least freddy pharkas during nighttime. In that case kPalVary is
+ // called right before that and because we load pictures much faster
+ // the 1 tick won't pass sometimes resulting in the palette being
+ // daytime instead of nighttime during the transition.
+ palVaryProcess(1, true);
+ } else {
+ palVaryInstallTimer();
+ }
return true;
}
return false;
@@ -633,9 +642,14 @@ int16 GfxPalette::kernelPalVaryReverse(int16 ticks, uint16 stepStop, int16 direc
_palVaryStepStop = stepStop;
_palVaryDirection = direction != -1 ? -direction : -_palVaryDirection;
- if (!_palVaryTicks)
+ if (!_palVaryTicks) {
_palVaryDirection = _palVaryStepStop - _palVaryStep;
- palVaryInstallTimer();
+ // ffs. see palVaryInit right above, we fix the code here as well
+ // just in case
+ palVaryProcess(1, true);
+ } else {
+ palVaryInstallTimer();
+ }
return kernelPalVaryGetCurrentStep();
}