From bfda12fa232b177d23a8d77c6b078924d2c90cbe Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Mon, 30 May 2016 22:31:02 -0700
Subject: [PATCH] Allow more options in texture [hashes] syntax.

This allows you to ignore the address or address and clut hash.
---
 Core/TextureReplacer.cpp | 50 +++++++++++++++++++++++++++++-----------
 Core/TextureReplacer.h   | 35 +++++++++++++++++++++++++++-
 2 files changed, 71 insertions(+), 14 deletions(-)

diff --git a/Core/TextureReplacer.cpp b/Core/TextureReplacer.cpp
index 4da568218e..ec7e842110 100644
--- a/Core/TextureReplacer.cpp
+++ b/Core/TextureReplacer.cpp
@@ -99,8 +99,12 @@ bool TextureReplacer::LoadIni() {
 			auto hashes = ini.GetOrCreateSection("hashes");
 			// Format: hashname = filename.png
 			for (std::string hashName : hashNames) {
-				std::transform(hashName.begin(), hashName.end(), hashName.begin(), tolower);
-				hashes->Get(hashName.c_str(), &aliases_[hashName], "");
+				ReplacementAliasKey key(0, 0, 0);
+				if (sscanf(hashName.c_str(), "%16llx%8x_%d", &key.cachekey, &key.hash, &key.level) >= 1) {
+					hashes->Get(hashName.c_str(), &aliases_[key], "");
+				} else {
+					ERROR_LOG(G3D, "Unsupported syntax under [hashes]: %s", hashName.c_str());
+				}
 			}
 		}
 
@@ -385,22 +389,42 @@ void TextureReplacer::NotifyTextureDecoded(const ReplacedTextureDecodeInfo &repl
 }
 
 std::string TextureReplacer::LookupHashFile(u64 cachekey, u32 hash, int level) {
-	const std::string hashname = HashName(cachekey, hash, level);
-	auto alias = aliases_.find(hashname);
+	ReplacementAliasKey key(cachekey, hash, level);
+	auto alias = aliases_.find(key);
+	if (alias == aliases_.end()) {
+		// Also check for a few more aliases with zeroed portions:
+		// No data hash.
+		key.hash = 0;
+		alias = aliases_.find(key);
+
+		if (alias == aliases_.end()) {
+			// No address.
+			key.cachekey = cachekey & 0xFFFFFFFFULL;
+			key.hash = hash;
+			alias = aliases_.find(key);
+		}
+
+		if (alias == aliases_.end()) {
+			// Address, but not clut hash (in case of garbage clut data.)
+			key.cachekey = cachekey & ~0xFFFFFFFFULL;
+			key.hash = hash;
+			alias = aliases_.find(key);
+		}
+
+		if (alias == aliases_.end()) {
+			// Anything with this data hash (a little dangerous.)
+			key.cachekey = 0;
+			key.hash = hash;
+			alias = aliases_.find(key);
+		}
+	}
+
 	if (alias != aliases_.end()) {
 		// Note: this will be blank if explicitly ignored.
 		return alias->second;
 	}
 
-	// Also check for a cachekey-only alias.  This is mainly for ignoring videos.
-	const std::string keyonly = hashname.substr(0, 16);
-	auto keyonlyAlias = aliases_.find(keyonly);
-	if (keyonlyAlias != aliases_.end()) {
-		// Note: this will be blank if explicitly ignored.
-		return keyonlyAlias->second;
-	}
-
-	return hashname + ".png";
+	return HashName(cachekey, hash, level) + ".png";
 }
 
 std::string TextureReplacer::HashName(u64 cachekey, u32 hash, int level) {
diff --git a/Core/TextureReplacer.h b/Core/TextureReplacer.h
index d90d484e28..c90b9efa0d 100644
--- a/Core/TextureReplacer.h
+++ b/Core/TextureReplacer.h
@@ -78,6 +78,31 @@ struct ReplacementCacheKey {
 	}
 };
 
+struct ReplacementAliasKey {
+	u64 cachekey;
+	union {
+		u64 hashAndLevel;
+		struct {
+			u32 level;
+			u32 hash;
+		};
+	};
+
+	ReplacementAliasKey(u64 c, u32 h, u32 l) : cachekey(c), hash(h), level(l) {
+	}
+
+	bool operator ==(const ReplacementAliasKey &k) const {
+		return k.cachekey == cachekey && k.hashAndLevel == hashAndLevel;
+	}
+
+	bool operator <(const ReplacementAliasKey &k) const {
+		if (k.cachekey == cachekey) {
+			return k.hashAndLevel < hashAndLevel;
+		}
+		return k.cachekey < cachekey;
+	}
+};
+
 #ifndef __SYMBIAN32__
 namespace std {
 	template <>
@@ -86,6 +111,13 @@ namespace std {
 			return std::hash<u64>()(k.cachekey ^ ((u64)k.hash << 32));
 		}
 	};
+
+	template <>
+	struct hash<ReplacementAliasKey> {
+		size_t operator()(const ReplacementAliasKey &k) const {
+			return std::hash<u64>()(k.cachekey ^ k.hashAndLevel);
+		}
+	};
 }
 #endif
 
@@ -169,12 +201,13 @@ protected:
 	std::string gameID_;
 	std::string basePath_;
 	ReplacedTextureHash hash_;
-	std::unordered_map<std::string, std::string> aliases_;
 	typedef std::pair<int, int> WidthHeightPair;
 #ifdef __SYMBIAN32__
 	std::map<u64, WidthHeightPair> hashranges_;
+	std::map<ReplacementAliasKey, std::string> aliases_;
 #else
 	std::unordered_map<u64, WidthHeightPair> hashranges_;
+	std::unordered_map<ReplacementAliasKey, std::string> aliases_;
 #endif
 
 	ReplacedTexture none_;