More work on serialization and BulletFileLoader

2010-01-22 00:15:33 +00:00
parent 50aa82a240
commit 26a056e629
49 changed files with 6714 additions and 160 deletions
--- a/Extras/Serialize/BulletFileLoader/bChunk.cpp
+++ b/Extras/Serialize/BulletFileLoader/bChunk.cpp
@@ -0,0 +1,188 @@
+/*
+bParse
+Copyright (c) 2006-2009 Charlie C & Erwin Coumans  http://gamekit.googlecode.com
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it freely,
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+#include <memory.h>
+#include "bChunk.h"
+#include "bDefines.h"
+#include "bFile.h"
+
+using namespace bParse;
+
+
+// ----------------------------------------------------- //
+short ChunkUtils::swapShort(short sht)
+{
+	SWITCH_SHORT(sht);
+	return sht;
+}
+
+// ----------------------------------------------------- //
+int ChunkUtils::swapInt(int inte)
+{
+	SWITCH_INT(inte);
+	return inte;
+}
+
+// ----------------------------------------------------- //
+long64 ChunkUtils::swapLong64(long64 lng)
+{
+	SWITCH_LONGINT(lng);
+	return lng;
+}
+
+// ----------------------------------------------------- //
+int ChunkUtils::getOffset(int flags)
+{
+	// if the file is saved in a
+	// different format, get the
+	// file's chunk size
+	int res = CHUNK_HEADER_LEN;
+
+	if (VOID_IS_8)
+	{
+		if (flags &FD_BITS_VARIES)
+			res = sizeof(bChunkPtr4);
+	}
+	else
+	{
+		if (flags &FD_BITS_VARIES)
+			res = sizeof(bChunkPtr8);
+	}
+	return res;
+}
+
+
+// ----------------------------------------------------- //
+int ChunkUtils::getNextBlock(bChunkInd *dataChunk,  char *dataPtr, const int flags)
+{
+	bool swap = false;
+	bool varies = false;
+
+	if (flags &FD_ENDIAN_SWAP) swap = true;
+	if (flags &FD_BITS_VARIES) varies = true;
+
+	if (VOID_IS_8)
+	{
+		if (varies)
+		{
+			bChunkPtr4 head;
+			memcpy(&head, dataPtr, sizeof(bChunkPtr4));
+
+
+			bChunkPtr8 chunk;
+
+			chunk.code		= head.code;
+			chunk.len		= head.len;
+			chunk.old		= head.old;
+			chunk.dna_nr	= head.dna_nr;
+			chunk.nr		= head.nr;
+
+			if (swap)
+			{
+				if ((chunk.code & 0xFFFF)==0)
+					chunk.code >>=16;
+
+				SWITCH_INT(chunk.len);
+				SWITCH_INT(chunk.dna_nr);
+				SWITCH_INT(chunk.nr);
+			}
+
+
+			memcpy(dataChunk, &chunk, sizeof(bChunkInd));
+		}
+		else
+		{
+			bChunkPtr8 c;
+			memcpy(&c, dataPtr, sizeof(bChunkPtr8));
+
+			if (swap)
+			{
+				if ((c.code & 0xFFFF)==0)
+					c.code >>=16;
+
+				SWITCH_INT(c.len);
+				SWITCH_INT(c.dna_nr);
+				SWITCH_INT(c.nr);
+			}
+
+			memcpy(dataChunk, &c, sizeof(bChunkInd));
+		}
+	}
+	else
+	{
+		if (varies)
+		{
+			bChunkPtr8 head;
+			memcpy(&head, dataPtr, sizeof(bChunkPtr8));
+
+
+			bChunkPtr4 chunk;
+			chunk.code = head.code;
+			chunk.len = head.len;
+
+			long64 oldPtr =0;
+
+			memcpy(&oldPtr, &head.old, 8);
+			chunk.old = (int)(oldPtr >> 3);
+
+			chunk.dna_nr = head.dna_nr;
+			chunk.nr = head.nr;
+
+			if (swap)
+			{
+				if ((chunk.code & 0xFFFF)==0)
+					chunk.code >>=16;
+
+				SWITCH_INT(chunk.len);
+				SWITCH_INT(chunk.dna_nr);
+				SWITCH_INT(chunk.nr);
+			}
+
+			memcpy(dataChunk, &chunk, sizeof(bChunkInd));
+		}
+		else
+		{
+			bChunkPtr4 c;
+			memcpy(&c, dataPtr, sizeof(bChunkPtr4));
+
+			if (swap)
+			{
+				if ((c.code & 0xFFFF)==0)
+					c.code >>=16;
+
+				SWITCH_INT(c.len);
+				SWITCH_INT(c.dna_nr);
+				SWITCH_INT(c.nr);
+			}
+			memcpy(dataChunk, &c, sizeof(bChunkInd));
+		}
+	}
+
+	if (dataChunk->len < 0)
+		return -1;
+
+#if 0
+	print ("----------");
+	print (dataChunk->code);
+	print (dataChunk->len);
+	print (dataChunk->old);
+	print (dataChunk->dna_nr);
+	print (dataChunk->nr);
+#endif
+	return (dataChunk->len+getOffset(flags));
+}
+
+
+
+//eof