From c640d1c604f219a5be5412d6c5ea8a85f44ec4b4 Mon Sep 17 00:00:00 2001
From: Eugene Sandulenko
Date: Sat, 3 Nov 2007 21:06:58 +0000
Subject: Patch #1825276: "DETECTION: advanced detector engine simplification"

svn-id: r29386
---
 common/advancedDetector.cpp | 39 +--------------------------------------
 common/advancedDetector.h   | 36 ++++--------------------------------
 2 files changed, 5 insertions(+), 70 deletions(-)

(limited to 'common')

diff --git a/common/advancedDetector.cpp b/common/advancedDetector.cpp
index b15477c5a2..3b235835f3 100644
--- a/common/advancedDetector.cpp
+++ b/common/advancedDetector.cpp
@@ -70,7 +70,7 @@ GameList gameIDList(const Common::ADParams &params) {
 	return GameList(params.list);
 }
 
-static void upgradeTargetIfNecessary(const Common::ADParams &params) {
+void upgradeTargetIfNecessary(const Common::ADParams &params) {
 	if (params.obsoleteList == 0)
 		return;
 
@@ -264,43 +264,6 @@ EncapsulatedADGameDesc detectBestMatchingGame(
 	return result;
 }
 
-PluginError detectGameForEngineCreation(
-	const Common::ADParams &params
-	) {
-
-	upgradeTargetIfNecessary(params);
-
-	Common::String gameid = ConfMan.get("gameid");
-
-	FSList fslist;
-	FilesystemNode dir(ConfMan.get("path"));
-	if (!dir.getChildren(fslist, FilesystemNode::kListFilesOnly)) {
-		return kInvalidPathError;
-	}
-
-	ADGameDescList matches = detectGame(&fslist, params, Common::UNK_LANG, Common::kPlatformUnknown);
-
-	// We have single ID set, so we have a game if there are hits
-	if (params.singleid != NULL && matches.size())
-		return kNoError;
-
-	for (uint i = 0; i < matches.size(); i++) {
-		if (matches[i]->gameid == gameid) {
-			return kNoError;
-		}
-	}
-
-	// Use fallback detector if there were no matches by other means
-	if (params.fallbackDetectFunc != NULL) {
-		EncapsulatedADGameDesc fallbackDesc = (*params.fallbackDetectFunc)(&fslist);
-		if (fallbackDesc.realDesc != 0 && (params.singleid != NULL || fallbackDesc.getGameID() == gameid)) {
-			return kNoError;
-		}
-	}
-
-	return kNoGameDataFoundError;
-}
-
 void reportUnknown(StringMap &filesMD5, HashMap<String, int32, Common::CaseSensitiveString_Hash, Common::CaseSensitiveString_EqualTo> &filesSize) {
 	// TODO: This message should be cleaned up / made more specific.
 	// For example, we should specify at least which engine triggered this.
diff --git a/common/advancedDetector.h b/common/advancedDetector.h
index b98b7a45ff..9acd2d22be 100644
--- a/common/advancedDetector.h
+++ b/common/advancedDetector.h
@@ -236,22 +236,13 @@ GameList detectAllGames(const FSList &fslist, const Common::ADParams &params);
 // FIXME/TODO: Rename this function to something more sensible.
 EncapsulatedADGameDesc detectBestMatchingGame(const Common::ADParams &params);
 
-// FIXME/TODO: Rename this function to something more sensible.
-// Only used by ADVANCED_DETECTOR_DEFINE_PLUGIN_WITH_FUNC
-PluginError detectGameForEngineCreation(const Common::ADParams &params);
+void upgradeTargetIfNecessary(const Common::ADParams &params);
 
+// FIXME/TODO: Rename this function to something more sensible.
 // Helper function to announce an unknown version of the game (useful for
 // fallback detection functions).
 void reportUnknown(StringList &files, int md5Bytes);
 
-// FIXME: It would probably be good to merge detectBestMatchingGame
-// and detectGameForEngineCreation into a single function. Right now, the
-// detection code called priort to creating an engine instance
-// (i.e. detectGameForEngineCreation) differs from the detection code the 
-// engines call internally (i.e. detectBestMatchingGame). This could lead
-// to hard to debug and odd errors.
-
-
 } // End of namespace AdvancedDetector
 
 
@@ -267,22 +258,11 @@ void reportUnknown(StringList &files, int md5Bytes);
 	} \
 	void dummyFuncToAllowTrailingSemicolon()
 
-#define _ADVANCED_DETECTOR_DEFINE_PLUGIN_WITH_PREDEFINED_FUNC(engine,factoryFunc,params) \
-	_ADVANCED_DETECTOR_DEFINE_PLUGIN_HEAD(engine,params); \
-	PluginError Engine_##engine##_create(OSystem *syst, Engine **engine) { \
-		assert(syst); \
-		assert(engine); \
-		PluginError err = Common::AdvancedDetector::detectGameForEngineCreation(params); \
-		if (err == kNoError) \
-			*engine = factoryFunc(syst); \
-		return err; \
-	} \
-	void dummyFuncToAllowTrailingSemicolon()
-
-#define ADVANCED_DETECTOR_DEFINE_PLUGIN_WITH_COMPLEX_CREATION(engine,factoryFunc,params) \
+#define ADVANCED_DETECTOR_DEFINE_PLUGIN(engine,factoryFunc,params) \
 	_ADVANCED_DETECTOR_DEFINE_PLUGIN_HEAD(engine,params); \
 	PluginError Engine_##engine##_create(OSystem *syst, Engine **engine) { \
 		assert(engine); \
+		Common::AdvancedDetector::upgradeTargetIfNecessary(params); \
 		Common::EncapsulatedADGameDesc encapsulatedDesc = Common::AdvancedDetector::detectBestMatchingGame(params); \
 		if (encapsulatedDesc.realDesc == 0) { \
 			return kNoGameDataFoundError; \
@@ -294,14 +274,6 @@ void reportUnknown(StringList &files, int md5Bytes);
 	} \
 	void dummyFuncToAllowTrailingSemicolon()
 
-#define ADVANCED_DETECTOR_DEFINE_PLUGIN(engine,className,params) \
-	static Engine *engine##_createInstance(OSystem *syst) { \
-		return new className(syst); \
-	} \
-	_ADVANCED_DETECTOR_DEFINE_PLUGIN_WITH_PREDEFINED_FUNC(engine,engine##_createInstance,params); \
-	void dummyFuncToAllowTrailingSemicolon()
-
-
 }	// End of namespace Common
 
 #endif
-- 
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