Update BlitzUtility:

- New DECLS
- Begin wrapping __cdecl sqlite3 into __stdcall functions (sqlite3 doesn't understand __stdcall)
- Use __stdcall and /EXPORT instead of __cdecl to not corrupt the stack.
- Implement two versions of the Indexer, V1 for really fast access and V2 for memory saving.

Signed-off-by: Michael Fabian Dirks <michael.dirks@realitybends.de>

Utility/IndexerV1.cpp

@@ -0,0 +1,79 @@
+#pragma once
+#include "IndexerV1.h"
+
+#define INDEX_OFF_0 0x00000000
+#define INDEX_OFF_1 0x10000000
+#define INDEX_OFF_2 0x20000000
+#define INDEX_OFF_3 0x30000000
+#define INDEX_OFF_4 0x40000000
+#define INDEX_OFF_5 0x50000000
+#define INDEX_OFF_6 0x60000000
+#define INDEX_OFF_7 0x70000000
+#define INDEX_OFF_8 0x80000000
+#define INDEX_OFF_9 0x90000000
+#define INDEX_OFF_A 0xA0000000
+#define INDEX_OFF_B 0xB0000000
+#define INDEX_OFF_C 0xC0000000
+#define INDEX_OFF_D 0xD0000000
+#define INDEX_OFF_E 0xE0000000
+#define INDEX_OFF_F 0xF0000000
+
+unsigned int IndexerV1::GetFreeIndex()
+{
+	unsigned int index = lastAssignedIndex + 1;
+
+	bool foundIndex = false;
+	char indexBitOffset = 0;
+
+	// We use 16 offsets here to speed up the search for a free index.
+	while (foundIndex == false) {
+		index = index + 64;
+
+		uint64_t toCheck = this->indexes[index >> 6];
+		for (indexBitOffset = 0; indexBitOffset < 64; indexBitOffset++) {
+			if ((toCheck & (1ULL << indexBitOffset)) == false) {
+				foundIndex = true;
+				break;
+			}
+		}
+	}
+	index = index + indexBitOffset;
+
+	// Mark Index as in use.
+	this->indexes[index >> 6] |= 1ULL << indexBitOffset;
+	lastAssignedIndex = index;
+
+	return lastAssignedIndex;
+}
+
+void IndexerV1::MarkFreeIndex(int index)
+{
+	unsigned short bitFlip = index % 64;
+
+	// Mark index as unused.
+	this->indexes[index >> 6] &= ~(1ULL << bitFlip);
+}
+
+DLL_EXPORT void* IndexerV1_Create() {
+	IndexerV1* indexer = new IndexerV1();
+	return indexer;
+}
+#pragma comment(linker, "/EXPORT:IndexerV1_Create=_IndexerV1_Create@0")
+
+DLL_EXPORT int IndexerV1_GetFreeIndex(uint32_t* indexerPtr) {
+	IndexerV1* indexer = (IndexerV1*)indexerPtr;
+	return indexer->GetFreeIndex();
+}
+#pragma comment(linker, "/EXPORT:IndexerV1_GetFreeIndex=_IndexerV1_GetFreeIndex@4")
+
+DLL_EXPORT void IndexerV1_MarkFreeIndex(uint32_t* indexerPtr, uint32_t Index) {
+	IndexerV1* indexer = (IndexerV1*)indexerPtr;
+	indexer->MarkFreeIndex(Index);
+}
+#pragma comment(linker, "/EXPORT:IndexerV1_MarkFreeIndex=_IndexerV1_MarkFreeIndex@8")
+
+DLL_EXPORT void IndexerV1_Destroy(uint32_t* indexerPtr) {
+	IndexerV1* indexer = (IndexerV1*)indexerPtr;
+	delete indexer;
+}
+#pragma comment(linker, "/EXPORT:IndexerV1_Destroy=_IndexerV1_Destroy@4")