diff options
Diffstat (limited to 'source/FastNBT.cpp')
-rw-r--r-- | source/FastNBT.cpp | 1060 |
1 files changed, 530 insertions, 530 deletions
diff --git a/source/FastNBT.cpp b/source/FastNBT.cpp index 9854fe3bc..773aecf62 100644 --- a/source/FastNBT.cpp +++ b/source/FastNBT.cpp @@ -1,530 +1,530 @@ -
-// FastNBT.cpp
-
-// Implements the fast NBT parser and writer
-
-#include "Globals.h"
-#include "FastNBT.h"
-
-
-
-
-
-#define RETURN_FALSE_IF_FALSE(X) do { if (!X) return false; } while (0)
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cParsedNBT:
-
-#define NEEDBYTES(N) \
- if (m_Length - m_Pos < N) \
- { \
- return false; \
- }
-
-
-
-
-
-cParsedNBT::cParsedNBT(const char * a_Data, int a_Length) :
- m_Data(a_Data),
- m_Length(a_Length),
- m_Pos(0)
-{
- m_IsValid = Parse();
-}
-
-
-
-
-
-bool cParsedNBT::Parse(void)
-{
- if (m_Length < 3)
- {
- // Data too short
- return false;
- }
- if (m_Data[0] != TAG_Compound)
- {
- // The top-level tag must be a Compound
- return false;
- }
-
- m_Tags.reserve(200);
-
- m_Tags.push_back(cFastNBTTag(TAG_Compound, -1));
-
- m_Pos = 1;
-
- RETURN_FALSE_IF_FALSE(ReadString(m_Tags.back().m_NameStart, m_Tags.back().m_NameLength));
- RETURN_FALSE_IF_FALSE(ReadCompound());
-
- return true;
-}
-
-
-
-
-
-bool cParsedNBT::ReadString(int & a_StringStart, int & a_StringLen)
-{
- NEEDBYTES(2);
- a_StringStart = m_Pos + 2;
- a_StringLen = ntohs(*((short *)(m_Data + m_Pos)));
- if (a_StringLen < 0)
- {
- // Invalid string length
- return false;
- }
- m_Pos += 2 + a_StringLen;
- return true;
-}
-
-
-
-
-
-bool cParsedNBT::ReadCompound(void)
-{
- // Reads the latest tag as a compound
- int ParentIdx = m_Tags.size() - 1;
- int PrevSibling = -1;
- while (true)
- {
- NEEDBYTES(1);
- eTagType TagType = (eTagType)(m_Data[m_Pos]);
- m_Pos++;
- if (TagType == TAG_End)
- {
- break;
- }
- m_Tags.push_back(cFastNBTTag(TagType, ParentIdx, PrevSibling));
- if (PrevSibling >= 0)
- {
- m_Tags[PrevSibling].m_NextSibling = m_Tags.size() - 1;
- }
- else
- {
- m_Tags[ParentIdx].m_FirstChild = m_Tags.size() - 1;
- }
- PrevSibling = m_Tags.size() - 1;
- RETURN_FALSE_IF_FALSE(ReadString(m_Tags.back().m_NameStart, m_Tags.back().m_NameLength));
- RETURN_FALSE_IF_FALSE(ReadTag());
- } // while (true)
- m_Tags[ParentIdx].m_LastChild = PrevSibling;
- return true;
-}
-
-
-
-
-
-bool cParsedNBT::ReadList(eTagType a_ChildrenType)
-{
- // Reads the latest tag as a list of items of type a_ChildrenType
-
- // Read the count:
- NEEDBYTES(4);
- int Count = ntohl(*((int *)(m_Data + m_Pos)));
- m_Pos += 4;
- if (Count < 0)
- {
- return false;
- }
-
- // Read items:
- int ParentIdx = m_Tags.size() - 1;
- int PrevSibling = -1;
- for (int i = 0; i < Count; i++)
- {
- m_Tags.push_back(cFastNBTTag(a_ChildrenType, ParentIdx, PrevSibling));
- if (PrevSibling >= 0)
- {
- m_Tags[PrevSibling].m_NextSibling = m_Tags.size() - 1;
- }
- else
- {
- m_Tags[ParentIdx].m_FirstChild = m_Tags.size() - 1;
- }
- PrevSibling = m_Tags.size() - 1;
- RETURN_FALSE_IF_FALSE(ReadTag());
- } // for (i)
- m_Tags[ParentIdx].m_LastChild = PrevSibling;
- return true;
-}
-
-
-
-
-
-#define CASE_SIMPLE_TAG(TAGTYPE, LEN) \
- case TAG_##TAGTYPE: \
- { \
- NEEDBYTES(LEN); \
- Tag.m_DataStart = m_Pos; \
- Tag.m_DataLength = LEN; \
- m_Pos += LEN; \
- return true; \
- }
-
-bool cParsedNBT::ReadTag(void)
-{
- cFastNBTTag & Tag = m_Tags.back();
- switch (Tag.m_Type)
- {
- CASE_SIMPLE_TAG(Byte, 1)
- CASE_SIMPLE_TAG(Short, 2)
- CASE_SIMPLE_TAG(Int, 4)
- CASE_SIMPLE_TAG(Long, 8)
- CASE_SIMPLE_TAG(Float, 4)
- CASE_SIMPLE_TAG(Double, 8)
-
- case TAG_String:
- {
- return ReadString(Tag.m_DataStart, Tag.m_DataLength);
- }
-
- case TAG_ByteArray:
- {
- NEEDBYTES(4);
- int len = ntohl(*((int *)(m_Data + m_Pos)));
- m_Pos += 4;
- if (len < 0)
- {
- // Invalid length
- return false;
- }
- NEEDBYTES(len);
- Tag.m_DataLength = len;
- Tag.m_DataStart = m_Pos;
- m_Pos += len;
- return true;
- }
-
- case TAG_List:
- {
- NEEDBYTES(1);
- eTagType ItemType = (eTagType)m_Data[m_Pos];
- m_Pos++;
- RETURN_FALSE_IF_FALSE(ReadList(ItemType));
- return true;
- }
-
- case TAG_Compound:
- {
- RETURN_FALSE_IF_FALSE(ReadCompound());
- return true;
- }
-
- case TAG_IntArray:
- {
- NEEDBYTES(4);
- int len = ntohl(*((int *)(m_Data + m_Pos)));
- m_Pos += 4;
- if (len < 0)
- {
- // Invalid length
- return false;
- }
- len *= 4;
- NEEDBYTES(len);
- Tag.m_DataLength = len;
- Tag.m_DataStart = m_Pos;
- m_Pos += len;
- return true;
- }
-
- default:
- {
- ASSERT(!"Unhandled NBT tag type");
- return false;
- }
- } // switch (iType)
-}
-
-#undef CASE_SIMPLE_TAG
-
-
-
-
-
-int cParsedNBT::FindChildByName(int a_Tag, const char * a_Name, size_t a_NameLength) const
-{
- if (a_Tag < 0)
- {
- return -1;
- }
- if (m_Tags[a_Tag].m_Type != TAG_Compound)
- {
- return -1;
- }
-
- if (a_NameLength == 0)
- {
- a_NameLength = strlen(a_Name);
- }
- for (int Child = m_Tags[a_Tag].m_FirstChild; Child != -1; Child = m_Tags[Child].m_NextSibling)
- {
- if (
- (m_Tags[Child].m_NameLength == a_NameLength) &&
- (memcmp(m_Data + m_Tags[Child].m_NameStart, a_Name, a_NameLength) == 0)
- )
- {
- return Child;
- }
- } // for Child - children of a_Tag
- return -1;
-}
-
-
-
-
-
-int cParsedNBT::FindTagByPath(int a_Tag, const AString & a_Path) const
-{
- if (a_Tag < 0)
- {
- return -1;
- }
- size_t Begin = 0;
- size_t Length = a_Path.length();
- int Tag = a_Tag;
- for (size_t i = 0; i < Length; i++)
- {
- if (a_Path[i] != '\\')
- {
- continue;
- }
- Tag = FindChildByName(Tag, a_Path.c_str() + Begin, i - Begin - 1);
- if (Tag < 0)
- {
- return -1;
- }
- Begin = i + 1;
- } // for i - a_Path[]
-
- if (Begin < Length)
- {
- Tag = FindChildByName(Tag, a_Path.c_str() + Begin, Length - Begin);
- }
- return Tag;
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cFastNBTWriter:
-
-cFastNBTWriter::cFastNBTWriter(void) :
- m_CurrentStack(0)
-{
- m_Stack[0].m_Type = TAG_Compound;
- m_Result.reserve(100 * 1024);
- m_Result.push_back(TAG_Compound);
- WriteString("", 0);
-}
-
-
-
-
-
-void cFastNBTWriter::BeginCompound(const AString & a_Name)
-{
- if (m_CurrentStack >= MAX_STACK)
- {
- ASSERT(!"Stack overflow");
- return;
- }
-
- TagCommon(a_Name, TAG_Compound);
-
- ++m_CurrentStack;
- m_Stack[m_CurrentStack].m_Type = TAG_Compound;
-}
-
-
-
-
-
-void cFastNBTWriter::EndCompound(void)
-{
- ASSERT(m_CurrentStack > 0);
- ASSERT(IsStackTopCompound());
-
- m_Result.push_back(TAG_End);
- --m_CurrentStack;
-}
-
-
-
-
-
-void cFastNBTWriter::BeginList(const AString & a_Name, eTagType a_ChildrenType)
-{
- if (m_CurrentStack >= MAX_STACK)
- {
- ASSERT(!"Stack overflow");
- return;
- }
-
- TagCommon(a_Name, TAG_List);
-
- m_Result.push_back((char)a_ChildrenType);
- m_Result.append(4, (char)0);
-
- ++m_CurrentStack;
- m_Stack[m_CurrentStack].m_Type = TAG_List;
- m_Stack[m_CurrentStack].m_Pos = m_Result.size() - 4;
- m_Stack[m_CurrentStack].m_Count = 0;
-}
-
-
-
-
-
-void cFastNBTWriter::EndList(void)
-{
- ASSERT(m_CurrentStack > 0);
- ASSERT(m_Stack[m_CurrentStack].m_Type == TAG_List);
-
- // Update the list count:
- *((int *)(m_Result.c_str() + m_Stack[m_CurrentStack].m_Pos)) = htonl(m_Stack[m_CurrentStack].m_Count);
-
- --m_CurrentStack;
-}
-
-
-
-
-
-void cFastNBTWriter::AddByte(const AString & a_Name, unsigned char a_Value)
-{
- TagCommon(a_Name, TAG_Byte);
- m_Result.push_back(a_Value);
-}
-
-
-
-
-
-void cFastNBTWriter::AddShort(const AString & a_Name, Int16 a_Value)
-{
- TagCommon(a_Name, TAG_Short);
- Int16 Value = htons(a_Value);
- m_Result.append((const char *)&Value, 2);
-}
-
-
-
-
-
-void cFastNBTWriter::AddInt(const AString & a_Name, Int32 a_Value)
-{
- TagCommon(a_Name, TAG_Int);
- Int32 Value = htonl(a_Value);
- m_Result.append((const char *)&Value, 4);
-}
-
-
-
-
-
-void cFastNBTWriter::AddLong(const AString & a_Name, Int64 a_Value)
-{
- TagCommon(a_Name, TAG_Long);
- Int64 Value = HostToNetwork8(&a_Value);
- m_Result.append((const char *)&Value, 8);
-}
-
-
-
-
-
-void cFastNBTWriter::AddFloat(const AString & a_Name, float a_Value)
-{
- TagCommon(a_Name, TAG_Float);
- Int32 Value = HostToNetwork4(&a_Value);
- m_Result.append((const char *)&Value, 4);
-}
-
-
-
-
-
-void cFastNBTWriter::AddDouble(const AString & a_Name, double a_Value)
-{
- TagCommon(a_Name, TAG_Double);
- Int64 Value = HostToNetwork8(&a_Value);
- m_Result.append((const char *)&Value, 8);
-}
-
-
-
-
-
-void cFastNBTWriter::AddString(const AString & a_Name, const AString & a_Value)
-{
- TagCommon(a_Name, TAG_String);
- Int16 len = htons((short)(a_Value.size()));
- m_Result.append((const char *)&len, 2);
- m_Result.append(a_Value.c_str(), a_Value.size());
-}
-
-
-
-
-
-void cFastNBTWriter::AddByteArray(const AString & a_Name, const char * a_Value, size_t a_NumElements)
-{
- TagCommon(a_Name, TAG_ByteArray);
- Int32 len = htonl(a_NumElements);
- m_Result.append((const char *)&len, 4);
- m_Result.append(a_Value, a_NumElements);
-}
-
-
-
-
-
-void cFastNBTWriter::AddIntArray(const AString & a_Name, const int * a_Value, size_t a_NumElements)
-{
- TagCommon(a_Name, TAG_IntArray);
- Int32 len = htonl(a_NumElements);
- m_Result.append((const char *)&len, 2);
- int * Elements = (int *)(m_Result.data() + m_Result.size());
- m_Result.append(a_NumElements * 4, (char)0);
- for (size_t i = 0; i < a_NumElements; i++)
- {
- Elements[i] = htonl(a_Value[i]);
- }
-}
-
-
-
-
-void cFastNBTWriter::Finish(void)
-{
- ASSERT(m_CurrentStack == 0);
- m_Result.push_back(TAG_End);
-}
-
-
-
-
-
-void cFastNBTWriter::WriteString(const char * a_Data, short a_Length)
-{
- Int16 Len = htons(a_Length);
- m_Result.append((const char *)&Len, 2);
- m_Result.append(a_Data, a_Length);
-}
-
-
-
-
+ +// FastNBT.cpp + +// Implements the fast NBT parser and writer + +#include "Globals.h" +#include "FastNBT.h" + + + + + +#define RETURN_FALSE_IF_FALSE(X) do { if (!X) return false; } while (0) + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cParsedNBT: + +#define NEEDBYTES(N) \ + if (m_Length - m_Pos < N) \ + { \ + return false; \ + } + + + + + +cParsedNBT::cParsedNBT(const char * a_Data, int a_Length) : + m_Data(a_Data), + m_Length(a_Length), + m_Pos(0) +{ + m_IsValid = Parse(); +} + + + + + +bool cParsedNBT::Parse(void) +{ + if (m_Length < 3) + { + // Data too short + return false; + } + if (m_Data[0] != TAG_Compound) + { + // The top-level tag must be a Compound + return false; + } + + m_Tags.reserve(200); + + m_Tags.push_back(cFastNBTTag(TAG_Compound, -1)); + + m_Pos = 1; + + RETURN_FALSE_IF_FALSE(ReadString(m_Tags.back().m_NameStart, m_Tags.back().m_NameLength)); + RETURN_FALSE_IF_FALSE(ReadCompound()); + + return true; +} + + + + + +bool cParsedNBT::ReadString(int & a_StringStart, int & a_StringLen) +{ + NEEDBYTES(2); + a_StringStart = m_Pos + 2; + a_StringLen = ntohs(*((short *)(m_Data + m_Pos))); + if (a_StringLen < 0) + { + // Invalid string length + return false; + } + m_Pos += 2 + a_StringLen; + return true; +} + + + + + +bool cParsedNBT::ReadCompound(void) +{ + // Reads the latest tag as a compound + int ParentIdx = m_Tags.size() - 1; + int PrevSibling = -1; + while (true) + { + NEEDBYTES(1); + eTagType TagType = (eTagType)(m_Data[m_Pos]); + m_Pos++; + if (TagType == TAG_End) + { + break; + } + m_Tags.push_back(cFastNBTTag(TagType, ParentIdx, PrevSibling)); + if (PrevSibling >= 0) + { + m_Tags[PrevSibling].m_NextSibling = m_Tags.size() - 1; + } + else + { + m_Tags[ParentIdx].m_FirstChild = m_Tags.size() - 1; + } + PrevSibling = m_Tags.size() - 1; + RETURN_FALSE_IF_FALSE(ReadString(m_Tags.back().m_NameStart, m_Tags.back().m_NameLength)); + RETURN_FALSE_IF_FALSE(ReadTag()); + } // while (true) + m_Tags[ParentIdx].m_LastChild = PrevSibling; + return true; +} + + + + + +bool cParsedNBT::ReadList(eTagType a_ChildrenType) +{ + // Reads the latest tag as a list of items of type a_ChildrenType + + // Read the count: + NEEDBYTES(4); + int Count = ntohl(*((int *)(m_Data + m_Pos))); + m_Pos += 4; + if (Count < 0) + { + return false; + } + + // Read items: + int ParentIdx = m_Tags.size() - 1; + int PrevSibling = -1; + for (int i = 0; i < Count; i++) + { + m_Tags.push_back(cFastNBTTag(a_ChildrenType, ParentIdx, PrevSibling)); + if (PrevSibling >= 0) + { + m_Tags[PrevSibling].m_NextSibling = m_Tags.size() - 1; + } + else + { + m_Tags[ParentIdx].m_FirstChild = m_Tags.size() - 1; + } + PrevSibling = m_Tags.size() - 1; + RETURN_FALSE_IF_FALSE(ReadTag()); + } // for (i) + m_Tags[ParentIdx].m_LastChild = PrevSibling; + return true; +} + + + + + +#define CASE_SIMPLE_TAG(TAGTYPE, LEN) \ + case TAG_##TAGTYPE: \ + { \ + NEEDBYTES(LEN); \ + Tag.m_DataStart = m_Pos; \ + Tag.m_DataLength = LEN; \ + m_Pos += LEN; \ + return true; \ + } + +bool cParsedNBT::ReadTag(void) +{ + cFastNBTTag & Tag = m_Tags.back(); + switch (Tag.m_Type) + { + CASE_SIMPLE_TAG(Byte, 1) + CASE_SIMPLE_TAG(Short, 2) + CASE_SIMPLE_TAG(Int, 4) + CASE_SIMPLE_TAG(Long, 8) + CASE_SIMPLE_TAG(Float, 4) + CASE_SIMPLE_TAG(Double, 8) + + case TAG_String: + { + return ReadString(Tag.m_DataStart, Tag.m_DataLength); + } + + case TAG_ByteArray: + { + NEEDBYTES(4); + int len = ntohl(*((int *)(m_Data + m_Pos))); + m_Pos += 4; + if (len < 0) + { + // Invalid length + return false; + } + NEEDBYTES(len); + Tag.m_DataLength = len; + Tag.m_DataStart = m_Pos; + m_Pos += len; + return true; + } + + case TAG_List: + { + NEEDBYTES(1); + eTagType ItemType = (eTagType)m_Data[m_Pos]; + m_Pos++; + RETURN_FALSE_IF_FALSE(ReadList(ItemType)); + return true; + } + + case TAG_Compound: + { + RETURN_FALSE_IF_FALSE(ReadCompound()); + return true; + } + + case TAG_IntArray: + { + NEEDBYTES(4); + int len = ntohl(*((int *)(m_Data + m_Pos))); + m_Pos += 4; + if (len < 0) + { + // Invalid length + return false; + } + len *= 4; + NEEDBYTES(len); + Tag.m_DataLength = len; + Tag.m_DataStart = m_Pos; + m_Pos += len; + return true; + } + + default: + { + ASSERT(!"Unhandled NBT tag type"); + return false; + } + } // switch (iType) +} + +#undef CASE_SIMPLE_TAG + + + + + +int cParsedNBT::FindChildByName(int a_Tag, const char * a_Name, size_t a_NameLength) const +{ + if (a_Tag < 0) + { + return -1; + } + if (m_Tags[a_Tag].m_Type != TAG_Compound) + { + return -1; + } + + if (a_NameLength == 0) + { + a_NameLength = strlen(a_Name); + } + for (int Child = m_Tags[a_Tag].m_FirstChild; Child != -1; Child = m_Tags[Child].m_NextSibling) + { + if ( + (m_Tags[Child].m_NameLength == a_NameLength) && + (memcmp(m_Data + m_Tags[Child].m_NameStart, a_Name, a_NameLength) == 0) + ) + { + return Child; + } + } // for Child - children of a_Tag + return -1; +} + + + + + +int cParsedNBT::FindTagByPath(int a_Tag, const AString & a_Path) const +{ + if (a_Tag < 0) + { + return -1; + } + size_t Begin = 0; + size_t Length = a_Path.length(); + int Tag = a_Tag; + for (size_t i = 0; i < Length; i++) + { + if (a_Path[i] != '\\') + { + continue; + } + Tag = FindChildByName(Tag, a_Path.c_str() + Begin, i - Begin - 1); + if (Tag < 0) + { + return -1; + } + Begin = i + 1; + } // for i - a_Path[] + + if (Begin < Length) + { + Tag = FindChildByName(Tag, a_Path.c_str() + Begin, Length - Begin); + } + return Tag; +} + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cFastNBTWriter: + +cFastNBTWriter::cFastNBTWriter(void) : + m_CurrentStack(0) +{ + m_Stack[0].m_Type = TAG_Compound; + m_Result.reserve(100 * 1024); + m_Result.push_back(TAG_Compound); + WriteString("", 0); +} + + + + + +void cFastNBTWriter::BeginCompound(const AString & a_Name) +{ + if (m_CurrentStack >= MAX_STACK) + { + ASSERT(!"Stack overflow"); + return; + } + + TagCommon(a_Name, TAG_Compound); + + ++m_CurrentStack; + m_Stack[m_CurrentStack].m_Type = TAG_Compound; +} + + + + + +void cFastNBTWriter::EndCompound(void) +{ + ASSERT(m_CurrentStack > 0); + ASSERT(IsStackTopCompound()); + + m_Result.push_back(TAG_End); + --m_CurrentStack; +} + + + + + +void cFastNBTWriter::BeginList(const AString & a_Name, eTagType a_ChildrenType) +{ + if (m_CurrentStack >= MAX_STACK) + { + ASSERT(!"Stack overflow"); + return; + } + + TagCommon(a_Name, TAG_List); + + m_Result.push_back((char)a_ChildrenType); + m_Result.append(4, (char)0); + + ++m_CurrentStack; + m_Stack[m_CurrentStack].m_Type = TAG_List; + m_Stack[m_CurrentStack].m_Pos = m_Result.size() - 4; + m_Stack[m_CurrentStack].m_Count = 0; +} + + + + + +void cFastNBTWriter::EndList(void) +{ + ASSERT(m_CurrentStack > 0); + ASSERT(m_Stack[m_CurrentStack].m_Type == TAG_List); + + // Update the list count: + *((int *)(m_Result.c_str() + m_Stack[m_CurrentStack].m_Pos)) = htonl(m_Stack[m_CurrentStack].m_Count); + + --m_CurrentStack; +} + + + + + +void cFastNBTWriter::AddByte(const AString & a_Name, unsigned char a_Value) +{ + TagCommon(a_Name, TAG_Byte); + m_Result.push_back(a_Value); +} + + + + + +void cFastNBTWriter::AddShort(const AString & a_Name, Int16 a_Value) +{ + TagCommon(a_Name, TAG_Short); + Int16 Value = htons(a_Value); + m_Result.append((const char *)&Value, 2); +} + + + + + +void cFastNBTWriter::AddInt(const AString & a_Name, Int32 a_Value) +{ + TagCommon(a_Name, TAG_Int); + Int32 Value = htonl(a_Value); + m_Result.append((const char *)&Value, 4); +} + + + + + +void cFastNBTWriter::AddLong(const AString & a_Name, Int64 a_Value) +{ + TagCommon(a_Name, TAG_Long); + Int64 Value = HostToNetwork8(&a_Value); + m_Result.append((const char *)&Value, 8); +} + + + + + +void cFastNBTWriter::AddFloat(const AString & a_Name, float a_Value) +{ + TagCommon(a_Name, TAG_Float); + Int32 Value = HostToNetwork4(&a_Value); + m_Result.append((const char *)&Value, 4); +} + + + + + +void cFastNBTWriter::AddDouble(const AString & a_Name, double a_Value) +{ + TagCommon(a_Name, TAG_Double); + Int64 Value = HostToNetwork8(&a_Value); + m_Result.append((const char *)&Value, 8); +} + + + + + +void cFastNBTWriter::AddString(const AString & a_Name, const AString & a_Value) +{ + TagCommon(a_Name, TAG_String); + Int16 len = htons((short)(a_Value.size())); + m_Result.append((const char *)&len, 2); + m_Result.append(a_Value.c_str(), a_Value.size()); +} + + + + + +void cFastNBTWriter::AddByteArray(const AString & a_Name, const char * a_Value, size_t a_NumElements) +{ + TagCommon(a_Name, TAG_ByteArray); + Int32 len = htonl(a_NumElements); + m_Result.append((const char *)&len, 4); + m_Result.append(a_Value, a_NumElements); +} + + + + + +void cFastNBTWriter::AddIntArray(const AString & a_Name, const int * a_Value, size_t a_NumElements) +{ + TagCommon(a_Name, TAG_IntArray); + Int32 len = htonl(a_NumElements); + m_Result.append((const char *)&len, 2); + int * Elements = (int *)(m_Result.data() + m_Result.size()); + m_Result.append(a_NumElements * 4, (char)0); + for (size_t i = 0; i < a_NumElements; i++) + { + Elements[i] = htonl(a_Value[i]); + } +} + + + + +void cFastNBTWriter::Finish(void) +{ + ASSERT(m_CurrentStack == 0); + m_Result.push_back(TAG_End); +} + + + + + +void cFastNBTWriter::WriteString(const char * a_Data, short a_Length) +{ + Int16 Len = htons(a_Length); + m_Result.append((const char *)&Len, 2); + m_Result.append(a_Data, a_Length); +} + + + + |