SCI: Sync in-game speech/subtitle options with the ones from the ScummVM GUI.

- Obtain speech/subtitle options from the ScummVM GUI and set them in CD games.
- Also, set simultaneous speech and subtitles in games that support them
(currently SQ4 CD and Freddy Pharkas CD). There is no GUI option for setting
simultaneous speech and subtitles in Freddy Pharkas CD, so this is the only
current way of achieving this (unless the text speed slider inside the Freddy
Pharkas options window is repurposed - but that will require extensive changes)

svn-id: r55005

1 files changed, 7 insertions, 0 deletions

diff --git a/engines/sci/engine/vm.cpp b/engines/sci/engine/vm.cpp
index 8398b7d8c2..958fcdf34f 100644
--- a/engines/sci/engine/vm.cpp
+++ b/engines/sci/engine/vm.cpp
@@ -286,6 +286,13 @@ static void validate_write_var(reg_t *r, reg_t *stack_base, int type, int max, i
 			value.segment = 0;
 
 		r[index] = value;
+
+		// If the game is trying to change its speech/subtitle settings, apply the ScummVM audio
+		// options first, if they haven't been applied yet
+		if (type == VAR_GLOBAL && index == 90 && !g_sci->getEngineState()->_syncedAudioOptions) {
+			g_sci->syncIngameAudioOptions();
+			g_sci->getEngineState()->_syncedAudioOptions = true;
+		}
 	}
 }