SCI: Don't error() out when autodetection fails

svn-id: r48790

1 files changed, 15 insertions, 0 deletions

diff --git a/engines/sci/engine/features.cpp b/engines/sci/engine/features.cpp
index 83358684fa..e51867332a 100644
--- a/engines/sci/engine/features.cpp
+++ b/engines/sci/engine/features.cpp
@@ -71,6 +71,9 @@ bool GameFeatures::autoDetectSoundType() {
 	// Look up the script address
 	reg_t addr = getDetectionAddr("Sound", _kernel->_selectorCache.play);
 
+	if (!addr.segment)
+		return false;
+
 	uint16 offset = addr.offset;
 	Script *script = _segMan->getScript(addr.segment);
 	uint16 intParam = 0xFFFF;
@@ -206,6 +209,9 @@ bool GameFeatures::autoDetectLofsType(int methodNum) {
 	// Look up the script address
 	reg_t addr = getDetectionAddr("Game", -1, methodNum);
 
+	if (!addr.segment)
+		return false;
+
 	uint16 offset = addr.offset;
 	Script *script = _segMan->getScript(addr.segment);
 
@@ -289,6 +295,9 @@ bool GameFeatures::autoDetectGfxFunctionsType(int methodNum) {
 	// Look up the script address
 	reg_t addr = getDetectionAddr("Rm", _kernel->_selectorCache.overlay, methodNum);
 
+	if (!addr.segment)
+		return false;
+
 	uint16 offset = addr.offset;
 	Script *script = _segMan->getScript(addr.segment);
 
@@ -379,6 +388,9 @@ bool GameFeatures::autoDetectSci21KernelType() {
 	// Look up the script address
 	reg_t addr = getDetectionAddr("Sound", _kernel->_selectorCache.play);
 
+	if (!addr.segment)
+		return false;
+
 	uint16 offset = addr.offset;
 	Script *script = _segMan->getScript(addr.segment);
 
@@ -428,6 +440,9 @@ bool GameFeatures::autoDetectMoveCountType() {
 	// Look up the script address
 	reg_t addr = getDetectionAddr("Motion", _kernel->_selectorCache.doit);
 
+	if (!addr.segment)
+		return false;
+
 	uint16 offset = addr.offset;
 	Script *script = _segMan->getScript(addr.segment);
 	bool foundTarget = false;