summaryrefslogtreecommitdiff
path: root/thirdparty/bullet/src/Bullet3Serialize/Bullet2FileLoader/b3Serializer.h
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/bullet/src/Bullet3Serialize/Bullet2FileLoader/b3Serializer.h')
-rw-r--r--thirdparty/bullet/src/Bullet3Serialize/Bullet2FileLoader/b3Serializer.h639
1 files changed, 639 insertions, 0 deletions
diff --git a/thirdparty/bullet/src/Bullet3Serialize/Bullet2FileLoader/b3Serializer.h b/thirdparty/bullet/src/Bullet3Serialize/Bullet2FileLoader/b3Serializer.h
new file mode 100644
index 0000000000..1c1ce43764
--- /dev/null
+++ b/thirdparty/bullet/src/Bullet3Serialize/Bullet2FileLoader/b3Serializer.h
@@ -0,0 +1,639 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org
+
+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.
+*/
+
+#ifndef B3_SERIALIZER_H
+#define B3_SERIALIZER_H
+
+#include "Bullet3Common/b3Scalar.h" // has definitions like B3_FORCE_INLINE
+#include "Bullet3Common/b3StackAlloc.h"
+#include "Bullet3Common/b3HashMap.h"
+
+#if !defined( __CELLOS_LV2__) && !defined(__MWERKS__)
+#include <memory.h>
+#endif
+#include <string.h>
+
+
+
+extern char b3s_bulletDNAstr[];
+extern int b3s_bulletDNAlen;
+extern char b3s_bulletDNAstr64[];
+extern int b3s_bulletDNAlen64;
+
+B3_FORCE_INLINE int b3StrLen(const char* str)
+{
+ if (!str)
+ return(0);
+ int len = 0;
+
+ while (*str != 0)
+ {
+ str++;
+ len++;
+ }
+
+ return len;
+}
+
+
+class b3Chunk
+{
+public:
+ int m_chunkCode;
+ int m_length;
+ void *m_oldPtr;
+ int m_dna_nr;
+ int m_number;
+};
+
+enum b3SerializationFlags
+{
+ B3_SERIALIZE_NO_BVH = 1,
+ B3_SERIALIZE_NO_TRIANGLEINFOMAP = 2,
+ B3_SERIALIZE_NO_DUPLICATE_ASSERT = 4
+};
+
+class b3Serializer
+{
+
+public:
+
+ virtual ~b3Serializer() {}
+
+ virtual const unsigned char* getBufferPointer() const = 0;
+
+ virtual int getCurrentBufferSize() const = 0;
+
+ virtual b3Chunk* allocate(size_t size, int numElements) = 0;
+
+ virtual void finalizeChunk(b3Chunk* chunk, const char* structType, int chunkCode,void* oldPtr)= 0;
+
+ virtual void* findPointer(void* oldPtr) = 0;
+
+ virtual void* getUniquePointer(void*oldPtr) = 0;
+
+ virtual void startSerialization() = 0;
+
+ virtual void finishSerialization() = 0;
+
+ virtual const char* findNameForPointer(const void* ptr) const = 0;
+
+ virtual void registerNameForPointer(const void* ptr, const char* name) = 0;
+
+ virtual void serializeName(const char* ptr) = 0;
+
+ virtual int getSerializationFlags() const = 0;
+
+ virtual void setSerializationFlags(int flags) = 0;
+
+
+};
+
+
+
+#define B3_HEADER_LENGTH 12
+#if defined(__sgi) || defined (__sparc) || defined (__sparc__) || defined (__PPC__) || defined (__ppc__) || defined (__BIG_ENDIAN__)
+# define B3_MAKE_ID(a,b,c,d) ( (int)(a)<<24 | (int)(b)<<16 | (c)<<8 | (d) )
+#else
+# define B3_MAKE_ID(a,b,c,d) ( (int)(d)<<24 | (int)(c)<<16 | (b)<<8 | (a) )
+#endif
+
+#define B3_SOFTBODY_CODE B3_MAKE_ID('S','B','D','Y')
+#define B3_COLLISIONOBJECT_CODE B3_MAKE_ID('C','O','B','J')
+#define B3_RIGIDBODY_CODE B3_MAKE_ID('R','B','D','Y')
+#define B3_CONSTRAINT_CODE B3_MAKE_ID('C','O','N','S')
+#define B3_BOXSHAPE_CODE B3_MAKE_ID('B','O','X','S')
+#define B3_QUANTIZED_BVH_CODE B3_MAKE_ID('Q','B','V','H')
+#define B3_TRIANLGE_INFO_MAP B3_MAKE_ID('T','M','A','P')
+#define B3_SHAPE_CODE B3_MAKE_ID('S','H','A','P')
+#define B3_ARRAY_CODE B3_MAKE_ID('A','R','A','Y')
+#define B3_SBMATERIAL_CODE B3_MAKE_ID('S','B','M','T')
+#define B3_SBNODE_CODE B3_MAKE_ID('S','B','N','D')
+#define B3_DYNAMICSWORLD_CODE B3_MAKE_ID('D','W','L','D')
+#define B3_DNA_CODE B3_MAKE_ID('D','N','A','1')
+
+
+struct b3PointerUid
+{
+ union
+ {
+ void* m_ptr;
+ int m_uniqueIds[2];
+ };
+};
+
+///The b3DefaultSerializer is the main Bullet serialization class.
+///The constructor takes an optional argument for backwards compatibility, it is recommended to leave this empty/zero.
+class b3DefaultSerializer : public b3Serializer
+{
+
+
+ b3AlignedObjectArray<char*> mTypes;
+ b3AlignedObjectArray<short*> mStructs;
+ b3AlignedObjectArray<short> mTlens;
+ b3HashMap<b3HashInt, int> mStructReverse;
+ b3HashMap<b3HashString,int> mTypeLookup;
+
+
+ b3HashMap<b3HashPtr,void*> m_chunkP;
+
+ b3HashMap<b3HashPtr,const char*> m_nameMap;
+
+ b3HashMap<b3HashPtr,b3PointerUid> m_uniquePointers;
+ int m_uniqueIdGenerator;
+
+ int m_totalSize;
+ unsigned char* m_buffer;
+ int m_currentSize;
+ void* m_dna;
+ int m_dnaLength;
+
+ int m_serializationFlags;
+
+
+ b3AlignedObjectArray<b3Chunk*> m_chunkPtrs;
+
+protected:
+
+ virtual void* findPointer(void* oldPtr)
+ {
+ void** ptr = m_chunkP.find(oldPtr);
+ if (ptr && *ptr)
+ return *ptr;
+ return 0;
+ }
+
+
+
+
+
+ void writeDNA()
+ {
+ b3Chunk* dnaChunk = allocate(m_dnaLength,1);
+ memcpy(dnaChunk->m_oldPtr,m_dna,m_dnaLength);
+ finalizeChunk(dnaChunk,"DNA1",B3_DNA_CODE, m_dna);
+ }
+
+ int getReverseType(const char *type) const
+ {
+
+ b3HashString key(type);
+ const int* valuePtr = mTypeLookup.find(key);
+ if (valuePtr)
+ return *valuePtr;
+
+ return -1;
+ }
+
+ void initDNA(const char* bdnaOrg,int dnalen)
+ {
+ ///was already initialized
+ if (m_dna)
+ return;
+
+ int littleEndian= 1;
+ littleEndian= ((char*)&littleEndian)[0];
+
+
+ m_dna = b3AlignedAlloc(dnalen,16);
+ memcpy(m_dna,bdnaOrg,dnalen);
+ m_dnaLength = dnalen;
+
+ int *intPtr=0;
+ short *shtPtr=0;
+ char *cp = 0;int dataLen =0;
+ intPtr = (int*)m_dna;
+
+ /*
+ SDNA (4 bytes) (magic number)
+ NAME (4 bytes)
+ <nr> (4 bytes) amount of names (int)
+ <string>
+ <string>
+ */
+
+ if (strncmp((const char*)m_dna, "SDNA", 4)==0)
+ {
+ // skip ++ NAME
+ intPtr++; intPtr++;
+ }
+
+ // Parse names
+ if (!littleEndian)
+ *intPtr = b3SwapEndian(*intPtr);
+
+ dataLen = *intPtr;
+
+ intPtr++;
+
+ cp = (char*)intPtr;
+ int i;
+ for ( i=0; i<dataLen; i++)
+ {
+
+ while (*cp)cp++;
+ cp++;
+ }
+ cp = b3AlignPointer(cp,4);
+
+ /*
+ TYPE (4 bytes)
+ <nr> amount of types (int)
+ <string>
+ <string>
+ */
+
+ intPtr = (int*)cp;
+ b3Assert(strncmp(cp, "TYPE", 4)==0); intPtr++;
+
+ if (!littleEndian)
+ *intPtr = b3SwapEndian(*intPtr);
+
+ dataLen = *intPtr;
+ intPtr++;
+
+
+ cp = (char*)intPtr;
+ for (i=0; i<dataLen; i++)
+ {
+ mTypes.push_back(cp);
+ while (*cp)cp++;
+ cp++;
+ }
+
+ cp = b3AlignPointer(cp,4);
+
+
+ /*
+ TLEN (4 bytes)
+ <len> (short) the lengths of types
+ <len>
+ */
+
+ // Parse type lens
+ intPtr = (int*)cp;
+ b3Assert(strncmp(cp, "TLEN", 4)==0); intPtr++;
+
+ dataLen = (int)mTypes.size();
+
+ shtPtr = (short*)intPtr;
+ for (i=0; i<dataLen; i++, shtPtr++)
+ {
+ if (!littleEndian)
+ shtPtr[0] = b3SwapEndian(shtPtr[0]);
+ mTlens.push_back(shtPtr[0]);
+ }
+
+ if (dataLen & 1) shtPtr++;
+
+ /*
+ STRC (4 bytes)
+ <nr> amount of structs (int)
+ <typenr>
+ <nr_of_elems>
+ <typenr>
+ <namenr>
+ <typenr>
+ <namenr>
+ */
+
+ intPtr = (int*)shtPtr;
+ cp = (char*)intPtr;
+ b3Assert(strncmp(cp, "STRC", 4)==0); intPtr++;
+
+ if (!littleEndian)
+ *intPtr = b3SwapEndian(*intPtr);
+ dataLen = *intPtr ;
+ intPtr++;
+
+
+ shtPtr = (short*)intPtr;
+ for (i=0; i<dataLen; i++)
+ {
+ mStructs.push_back (shtPtr);
+
+ if (!littleEndian)
+ {
+ shtPtr[0]= b3SwapEndian(shtPtr[0]);
+ shtPtr[1]= b3SwapEndian(shtPtr[1]);
+
+ int len = shtPtr[1];
+ shtPtr+= 2;
+
+ for (int a=0; a<len; a++, shtPtr+=2)
+ {
+ shtPtr[0]= b3SwapEndian(shtPtr[0]);
+ shtPtr[1]= b3SwapEndian(shtPtr[1]);
+ }
+
+ } else
+ {
+ shtPtr+= (2*shtPtr[1])+2;
+ }
+ }
+
+ // build reverse lookups
+ for (i=0; i<(int)mStructs.size(); i++)
+ {
+ short *strc = mStructs.at(i);
+ mStructReverse.insert(strc[0], i);
+ mTypeLookup.insert(b3HashString(mTypes[strc[0]]),i);
+ }
+ }
+
+public:
+
+
+
+
+ b3DefaultSerializer(int totalSize=0)
+ :m_totalSize(totalSize),
+ m_currentSize(0),
+ m_dna(0),
+ m_dnaLength(0),
+ m_serializationFlags(0)
+ {
+ m_buffer = m_totalSize?(unsigned char*)b3AlignedAlloc(totalSize,16):0;
+
+ const bool VOID_IS_8 = ((sizeof(void*)==8));
+
+#ifdef B3_INTERNAL_UPDATE_SERIALIZATION_STRUCTURES
+ if (VOID_IS_8)
+ {
+#if _WIN64
+ initDNA((const char*)b3s_bulletDNAstr64,b3s_bulletDNAlen64);
+#else
+ b3Assert(0);
+#endif
+ } else
+ {
+#ifndef _WIN64
+ initDNA((const char*)b3s_bulletDNAstr,b3s_bulletDNAlen);
+#else
+ b3Assert(0);
+#endif
+ }
+
+#else //B3_INTERNAL_UPDATE_SERIALIZATION_STRUCTURES
+ if (VOID_IS_8)
+ {
+ initDNA((const char*)b3s_bulletDNAstr64,b3s_bulletDNAlen64);
+ } else
+ {
+ initDNA((const char*)b3s_bulletDNAstr,b3s_bulletDNAlen);
+ }
+#endif //B3_INTERNAL_UPDATE_SERIALIZATION_STRUCTURES
+
+ }
+
+ virtual ~b3DefaultSerializer()
+ {
+ if (m_buffer)
+ b3AlignedFree(m_buffer);
+ if (m_dna)
+ b3AlignedFree(m_dna);
+ }
+
+ void writeHeader(unsigned char* buffer) const
+ {
+
+
+#ifdef B3_USE_DOUBLE_PRECISION
+ memcpy(buffer, "BULLETd", 7);
+#else
+ memcpy(buffer, "BULLETf", 7);
+#endif //B3_USE_DOUBLE_PRECISION
+
+ int littleEndian= 1;
+ littleEndian= ((char*)&littleEndian)[0];
+
+ if (sizeof(void*)==8)
+ {
+ buffer[7] = '-';
+ } else
+ {
+ buffer[7] = '_';
+ }
+
+ if (littleEndian)
+ {
+ buffer[8]='v';
+ } else
+ {
+ buffer[8]='V';
+ }
+
+
+ buffer[9] = '2';
+ buffer[10] = '8';
+ buffer[11] = '1';
+
+ }
+
+ virtual void startSerialization()
+ {
+ m_uniqueIdGenerator= 1;
+ if (m_totalSize)
+ {
+ unsigned char* buffer = internalAlloc(B3_HEADER_LENGTH);
+ writeHeader(buffer);
+ }
+
+ }
+
+ virtual void finishSerialization()
+ {
+ writeDNA();
+
+ //if we didn't pre-allocate a buffer, we need to create a contiguous buffer now
+ int mysize = 0;
+ if (!m_totalSize)
+ {
+ if (m_buffer)
+ b3AlignedFree(m_buffer);
+
+ m_currentSize += B3_HEADER_LENGTH;
+ m_buffer = (unsigned char*)b3AlignedAlloc(m_currentSize,16);
+
+ unsigned char* currentPtr = m_buffer;
+ writeHeader(m_buffer);
+ currentPtr += B3_HEADER_LENGTH;
+ mysize+=B3_HEADER_LENGTH;
+ for (int i=0;i< m_chunkPtrs.size();i++)
+ {
+ int curLength = sizeof(b3Chunk)+m_chunkPtrs[i]->m_length;
+ memcpy(currentPtr,m_chunkPtrs[i], curLength);
+ b3AlignedFree(m_chunkPtrs[i]);
+ currentPtr+=curLength;
+ mysize+=curLength;
+ }
+ }
+
+ mTypes.clear();
+ mStructs.clear();
+ mTlens.clear();
+ mStructReverse.clear();
+ mTypeLookup.clear();
+ m_chunkP.clear();
+ m_nameMap.clear();
+ m_uniquePointers.clear();
+ m_chunkPtrs.clear();
+ }
+
+ virtual void* getUniquePointer(void*oldPtr)
+ {
+ if (!oldPtr)
+ return 0;
+
+ b3PointerUid* uptr = (b3PointerUid*)m_uniquePointers.find(oldPtr);
+ if (uptr)
+ {
+ return uptr->m_ptr;
+ }
+ m_uniqueIdGenerator++;
+
+ b3PointerUid uid;
+ uid.m_uniqueIds[0] = m_uniqueIdGenerator;
+ uid.m_uniqueIds[1] = m_uniqueIdGenerator;
+ m_uniquePointers.insert(oldPtr,uid);
+ return uid.m_ptr;
+
+ }
+
+ virtual const unsigned char* getBufferPointer() const
+ {
+ return m_buffer;
+ }
+
+ virtual int getCurrentBufferSize() const
+ {
+ return m_currentSize;
+ }
+
+ virtual void finalizeChunk(b3Chunk* chunk, const char* structType, int chunkCode,void* oldPtr)
+ {
+ if (!(m_serializationFlags&B3_SERIALIZE_NO_DUPLICATE_ASSERT))
+ {
+ b3Assert(!findPointer(oldPtr));
+ }
+
+ chunk->m_dna_nr = getReverseType(structType);
+
+ chunk->m_chunkCode = chunkCode;
+
+ void* uniquePtr = getUniquePointer(oldPtr);
+
+ m_chunkP.insert(oldPtr,uniquePtr);//chunk->m_oldPtr);
+ chunk->m_oldPtr = uniquePtr;//oldPtr;
+
+ }
+
+
+ virtual unsigned char* internalAlloc(size_t size)
+ {
+ unsigned char* ptr = 0;
+
+ if (m_totalSize)
+ {
+ ptr = m_buffer+m_currentSize;
+ m_currentSize += int(size);
+ b3Assert(m_currentSize<m_totalSize);
+ } else
+ {
+ ptr = (unsigned char*)b3AlignedAlloc(size,16);
+ m_currentSize += int(size);
+ }
+ return ptr;
+ }
+
+
+
+ virtual b3Chunk* allocate(size_t size, int numElements)
+ {
+
+ unsigned char* ptr = internalAlloc(int(size)*numElements+sizeof(b3Chunk));
+
+ unsigned char* data = ptr + sizeof(b3Chunk);
+
+ b3Chunk* chunk = (b3Chunk*)ptr;
+ chunk->m_chunkCode = 0;
+ chunk->m_oldPtr = data;
+ chunk->m_length = int(size)*numElements;
+ chunk->m_number = numElements;
+
+ m_chunkPtrs.push_back(chunk);
+
+
+ return chunk;
+ }
+
+ virtual const char* findNameForPointer(const void* ptr) const
+ {
+ const char*const * namePtr = m_nameMap.find(ptr);
+ if (namePtr && *namePtr)
+ return *namePtr;
+ return 0;
+
+ }
+
+ virtual void registerNameForPointer(const void* ptr, const char* name)
+ {
+ m_nameMap.insert(ptr,name);
+ }
+
+ virtual void serializeName(const char* name)
+ {
+ if (name)
+ {
+ //don't serialize name twice
+ if (findPointer((void*)name))
+ return;
+
+ int len = b3StrLen(name);
+ if (len)
+ {
+
+ int newLen = len+1;
+ int padding = ((newLen+3)&~3)-newLen;
+ newLen += padding;
+
+ //serialize name string now
+ b3Chunk* chunk = allocate(sizeof(char),newLen);
+ char* destinationName = (char*)chunk->m_oldPtr;
+ for (int i=0;i<len;i++)
+ {
+ destinationName[i] = name[i];
+ }
+ destinationName[len] = 0;
+ finalizeChunk(chunk,"char",B3_ARRAY_CODE,(void*)name);
+ }
+ }
+ }
+
+ virtual int getSerializationFlags() const
+ {
+ return m_serializationFlags;
+ }
+
+ virtual void setSerializationFlags(int flags)
+ {
+ m_serializationFlags = flags;
+ }
+
+};
+
+
+#endif //B3_SERIALIZER_H
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 23:34:05 +0000