SCI32: Fix video performance benchmarking in most SCI32 games

Most SCI32 games draw a "fred" object to the screen when the game
first starts to benchmark video performance. When framerate
throttling is enabled (which fixes many/most timing-related bugs
and reduces system load caused by unnecessary graphics updates),
the game's performance check will think that video card is slow,
causing some "high-performance" game features to be disabled.

To avoid this, we simply disable throttling during benchmarking by
detecting the "fred" object.

1 files changed, 16 insertions, 0 deletions

diff --git a/engines/sci/graphics/frameout.h b/engines/sci/graphics/frameout.h
index 8ed95a00de..0f06ee1c85 100644
--- a/engines/sci/graphics/frameout.h
+++ b/engines/sci/graphics/frameout.h
@@ -179,6 +179,22 @@ public:
 	void run();
 
 #pragma mark -
+#pragma mark Benchmarking
+private:
+	/**
+	 * Optimization to avoid the more expensive object name
+	 * comparision on every call to kAddScreenItem and
+	 * kRemoveScreenItem.
+	 */
+	bool _benchmarkingFinished;
+
+	/**
+	 * Whether or not calls to kFrameOut should be framerate
+	 * limited to ~60fps.
+	 */
+	bool _throttleFrameOut;
+
+#pragma mark -
 #pragma mark Screen items
 private:
 	void deleteScreenItem(ScreenItem *screenItem, const reg_t plane);