SCUMM: enable speech gui option when speech file found in unknown game

This commit only affects monkey and monkey2 except FMTOWNS
because FMTOWNS has *.sou files that don't have speech

1 files changed, 45 insertions, 0 deletions

diff --git a/engines/scumm/detection.cpp b/engines/scumm/detection.cpp
index 3ed9218776..47b461f1bc 100644
--- a/engines/scumm/detection.cpp
+++ b/engines/scumm/detection.cpp
@@ -308,6 +308,47 @@ static void closeDiskImage(ScummDiskImage *img) {
 	SearchMan.remove("tmpDiskImgDir");
 }
 
+/*
+ * This function tries to detect if a speech file exists.
+ * False doesn't necessarily mean there are no speech files.
+ */
+static bool detectSpeech(const Common::FSList &fslist, const GameSettings *gs) {
+	if (gs->id == GID_MONKEY || gs->id == GID_MONKEY2) {
+
+		// FMTOWNS monkey and monkey2 games don't have speech but may have .sou files
+		if (gs->platform == Common::kPlatformFMTowns)
+			return false;
+
+		const char *basenames[] = { gs->gameid, "monster", 0 };
+		const char *extensions[] = { "sou",
+#ifdef USE_FLAC
+		 "sof",
+#endif
+#ifdef USE_VORBIS
+		 "sog",
+#endif
+#ifdef USE_MAD
+		 "so3",
+#endif
+		 0 };
+
+		for (Common::FSList::const_iterator file = fslist.begin();
+		 file != fslist.end(); ++file) {
+			if (!file->isDirectory()) {
+				for (int i = 0; basenames[i]; ++i) {
+					for (int j = 0; extensions[j]; ++j) {
+						Common::String filename = Common::String(basenames[i])
+						 + "." + Common::String(extensions[j]);
+						if (filename.equalsIgnoreCase(file->getName()))
+							return true;
+					}
+				}
+			}
+		}
+	}
+	return false;
+}
+
 // The following function tries to detect the language for COMI and DIG
 static Common::Language detectLanguage(const Common::FSList &fslist, byte id) {
 	// First try to detect Chinese translation
@@ -608,6 +649,10 @@ static void detectGames(const Common::FSList &fslist, Common::List<DetectorResul
 			// HACK: Perhaps it is some modified translation?
 			dr.language = detectLanguage(fslist, g->id);
 
+			// Detect if there are speech files in this unknown game
+			if(detectSpeech(fslist, g))
+				dr.game.guioptions &= ~GUIO_NOSPEECH;
+
 			// Add the game/variant to the candidates list if it is consistent
 			// with the file(s) we are seeing.
 			if (testGame(g, fileMD5Map, file))