2 files changed, 43 insertions, 3 deletions
diff --git a/Source/Core/VideoCommon/Src/VertexLoader.h b/Source/Core/VideoCommon/Src/VertexLoader.h
index 3a0f62b1de..8980c4e498 100644
--- a/Source/Core/VideoCommon/Src/VertexLoader.h
+++ b/Source/Core/VideoCommon/Src/VertexLoader.h
@@ -35,6 +35,7 @@
 class VertexLoaderUID
 {
 	u32 vid[5];
+	size_t hashValue;
 public:
 	VertexLoaderUID() {}
 	void InitFromCurrentState(int vtx_attr_group) {
@@ -43,9 +44,31 @@ public:
 		vid[2] = g_VtxAttr[vtx_attr_group].g0.Hex & ~VAT_0_FRACBITS;
 		vid[3] = g_VtxAttr[vtx_attr_group].g1.Hex & ~VAT_1_FRACBITS;
 		vid[4] = g_VtxAttr[vtx_attr_group].g2.Hex & ~VAT_2_FRACBITS;
+		hashValue = hash(*this);
 	}
 	bool operator < (const VertexLoaderUID &other) const {
-		return std::lexicographical_compare(vid, vid + sizeof(vid) / sizeof(vid[0]), other.vid, other.vid + sizeof(vid) / sizeof(vid[0]));
+		// This is complex because of speed.
+		if (vid[0] < other.vid[0])
+			return true;
+		else if (vid[0] > other.vid[0])
+			return false;
+		for (int i = 1; i < 5; ++i) {
+			if (vid[i] < other.vid[i])
+				return true;
+			else if (vid[i] > other.vid[i])
+				return false;
+		}
+		return false;
+	}
+	static size_t hash(const VertexLoaderUID& rh) {
+		size_t h = -1;
+		for (int i = 0; i < sizeof(rh.vid) / sizeof(rh.vid[0]); ++i) {
+			h = h * 137 + rh.vid[i];
+		}
+		return h;
+	}
+	operator size_t() const {
+		return hashValue;
 	}
 };
 
diff --git a/Source/Core/VideoCommon/Src/VertexLoaderManager.cpp b/Source/Core/VideoCommon/Src/VertexLoaderManager.cpp
index a7db50e420..cdb4aa42a5 100644
--- a/Source/Core/VideoCommon/Src/VertexLoaderManager.cpp
+++ b/Source/Core/VideoCommon/Src/VertexLoaderManager.cpp
@@ -15,9 +15,16 @@
 // Official SVN repository and contact information can be found at
 // http://code.google.com/p/dolphin-emu/
 
+#include <algorithm>
+#ifdef _MSC_VER
+#include <hash_map>
+using stdext::hash_map;
+#else
+#include <ext/hash_map>
+using __gnu_cxx::hash_map;
+#endif
 #include <map>
 #include <vector>
-#include <algorithm>
 
 #include "VideoCommon.h"
 #include "Statistics.h"
@@ -30,10 +37,20 @@ static int s_attr_dirty;  // bitfield
 
 static VertexLoader *g_VertexLoaders[8];
 
+#ifndef _MSC_VER
+namespace __gnu_cxx {
+	template<> struct hash<VertexLoaderUID> {
+		size_t operator()(const VertexLoaderUID& __x) const {
+			return __x;
+		}
+	};
+}
+#endif
+
 namespace VertexLoaderManager
 {
 
-typedef std::map<VertexLoaderUID, VertexLoader *> VertexLoaderMap;
+typedef hash_map<VertexLoaderUID, VertexLoader*> VertexLoaderMap;
 static VertexLoaderMap g_VertexLoaderMap;
 // TODO - change into array of pointers. Keep a map of all seen so far.