SCI: Fix too-fast rendering

Now that the renderer is loading resources without spinning CPU time
on decompression every frame, it becomes apparent that kFrameOut is
spammed constantly by the interpreter and needs to be throttled to
ensure that transitions and fades work properly.

1 files changed, 2 insertions, 0 deletions

diff --git a/engines/sci/engine/kgraphics32.cpp b/engines/sci/engine/kgraphics32.cpp
index 03cbd66984..f6b0074ad3 100644
--- a/engines/sci/engine/kgraphics32.cpp
+++ b/engines/sci/engine/kgraphics32.cpp
@@ -127,6 +127,8 @@ reg_t kGetHighPlanePri(EngineState *s, int argc, reg_t *argv) {
 reg_t kFrameOut(EngineState *s, int argc, reg_t *argv) {
 	bool showBits = argc > 0 ? argv[0].toUint16() : true;
 	g_sci->_gfxFrameout->kernelFrameout(showBits);
+	s->speedThrottler(16);
+	s->_throttleTrigger = true;
 	return NULL_REG;
 }