summaryrefslogtreecommitdiffstats
path: root/src/WorldStorage/FastNBT.h
diff options
context:
space:
mode:
authorJulian Laubstein <julianlaubstein@yahoo.de>2016-02-06 11:37:34 +0100
committerJulian Laubstein <julianlaubstein@yahoo.de>2016-02-06 11:37:34 +0100
commit6fdd7194c81be7234a126bdc3b48f0291fce3567 (patch)
tree7d5ac74b7385ce4ebf77588d80549c884c2b993c /src/WorldStorage/FastNBT.h
parentMerge pull request #2958 from LogicParrot/fence (diff)
parentBulk clearing of whitespace (diff)
downloadcuberite-6fdd7194c81be7234a126bdc3b48f0291fce3567.tar
cuberite-6fdd7194c81be7234a126bdc3b48f0291fce3567.tar.gz
cuberite-6fdd7194c81be7234a126bdc3b48f0291fce3567.tar.bz2
cuberite-6fdd7194c81be7234a126bdc3b48f0291fce3567.tar.lz
cuberite-6fdd7194c81be7234a126bdc3b48f0291fce3567.tar.xz
cuberite-6fdd7194c81be7234a126bdc3b48f0291fce3567.tar.zst
cuberite-6fdd7194c81be7234a126bdc3b48f0291fce3567.zip
Diffstat (limited to 'src/WorldStorage/FastNBT.h')
-rw-r--r--src/WorldStorage/FastNBT.h70
1 files changed, 35 insertions, 35 deletions
diff --git a/src/WorldStorage/FastNBT.h b/src/WorldStorage/FastNBT.h
index a23dc7af2..60c9ac293 100644
--- a/src/WorldStorage/FastNBT.h
+++ b/src/WorldStorage/FastNBT.h
@@ -56,16 +56,16 @@ Structure (all with the tree structure it describes) supports moving in memory (
struct cFastNBTTag
{
public:
-
+
eTagType m_Type;
-
+
// The following members are indices into the data stream. m_DataLength == 0 if no data available
// They must not be pointers, because the datastream may be copied into another AString object in the meantime.
size_t m_NameStart;
size_t m_NameLength;
size_t m_DataStart;
size_t m_DataLength;
-
+
// The following members are indices into the array returned; -1 if not valid
// They must not be pointers, because pointers would not survive std::vector reallocation
int m_Parent;
@@ -73,7 +73,7 @@ public:
int m_NextSibling;
int m_FirstChild;
int m_LastChild;
-
+
cFastNBTTag(eTagType a_Type, int a_Parent) :
m_Type(a_Type),
m_NameStart(0),
@@ -119,24 +119,24 @@ class cParsedNBT
{
public:
cParsedNBT(const char * a_Data, size_t a_Length);
-
+
bool IsValid(void) const {return m_IsValid; }
-
+
/** Returns the root tag of the hierarchy. */
int GetRoot(void) const {return 0; }
/** Returns the first child of the specified tag, or -1 if none / not applicable. */
int GetFirstChild (int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild; }
-
+
/** Returns the last child of the specified tag, or -1 if none / not applicable. */
int GetLastChild (int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_LastChild; }
-
+
/** Returns the next sibling of the specified tag, or -1 if none. */
int GetNextSibling(int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_NextSibling; }
-
+
/** Returns the previous sibling of the specified tag, or -1 if none. */
int GetPrevSibling(int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_PrevSibling; }
-
+
/** Returns the length of the tag's data, in bytes.
Not valid for Compound or List tags! */
size_t GetDataLength (int a_Tag) const
@@ -154,35 +154,35 @@ public:
ASSERT(m_Tags[static_cast<size_t>(a_Tag)].m_Type != TAG_Compound);
return m_Data + m_Tags[static_cast<size_t>(a_Tag)].m_DataStart;
}
-
+
/** Returns the direct child tag of the specified name, or -1 if no such tag. */
int FindChildByName(int a_Tag, const AString & a_Name) const
{
return FindChildByName(a_Tag, a_Name.c_str(), a_Name.length());
}
-
+
/** Returns the direct child tag of the specified name, or -1 if no such tag. */
int FindChildByName(int a_Tag, const char * a_Name, size_t a_NameLength = 0) const;
/** Returns the child tag of the specified path (Name1 / Name2 / Name3...), or -1 if no such tag. */
int FindTagByPath(int a_Tag, const AString & a_Path) const;
-
+
eTagType GetType(int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_Type; }
-
+
/** Returns the children type for a List tag; undefined on other tags. If list empty, returns TAG_End. */
eTagType GetChildrenType(int a_Tag) const
{
ASSERT(m_Tags[static_cast<size_t>(a_Tag)].m_Type == TAG_List);
return (m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild < 0) ? TAG_End : m_Tags[static_cast<size_t>(m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild)].m_Type;
}
-
+
/** Returns the value stored in a Byte tag. Not valid for any other tag type. */
inline unsigned char GetByte(int a_Tag) const
{
ASSERT(m_Tags[static_cast<size_t>(a_Tag)].m_Type == TAG_Byte);
return static_cast<unsigned char>(m_Data[static_cast<size_t>(m_Tags[static_cast<size_t>(a_Tag)].m_DataStart)]);
}
-
+
/** Returns the value stored in a Short tag. Not valid for any other tag type. */
inline Int16 GetShort(int a_Tag) const
{
@@ -208,20 +208,20 @@ public:
inline float GetFloat(int a_Tag) const
{
ASSERT(m_Tags[static_cast<size_t>(a_Tag)].m_Type == TAG_Float);
-
+
// Cause a compile-time error if sizeof(float) != 4
// If your platform produces a compiler error here, you'll need to add code that manually decodes 32-bit floats
char Check1[5 - sizeof(float)]; // Fails if sizeof(float) > 4
char Check2[sizeof(float) - 3]; // Fails if sizeof(float) < 4
UNUSED_VAR(Check1);
UNUSED_VAR(Check2);
-
+
Int32 i = GetBEInt(m_Data + m_Tags[static_cast<size_t>(a_Tag)].m_DataStart);
float f;
memcpy(&f, &i, sizeof(f));
return f;
}
-
+
/** Returns the value stored in a Double tag. Not valid for any other tag type. */
inline double GetDouble(int a_Tag) const
{
@@ -235,7 +235,7 @@ public:
ASSERT(m_Tags[static_cast<size_t>(a_Tag)].m_Type == TAG_Double);
return NetworkToHostDouble8(m_Data + m_Tags[static_cast<size_t>(a_Tag)].m_DataStart);
}
-
+
/** Returns the value stored in a String tag. Not valid for any other tag type. */
inline AString GetString(int a_Tag) const
{
@@ -244,7 +244,7 @@ public:
res.assign(m_Data + m_Tags[static_cast<size_t>(a_Tag)].m_DataStart, static_cast<size_t>(m_Tags[static_cast<size_t>(a_Tag)].m_DataLength));
return res;
}
-
+
/** Returns the tag's name. For tags that are not named, returns an empty string. */
inline AString GetName(int a_Tag) const
{
@@ -252,7 +252,7 @@ public:
res.assign(m_Data + m_Tags[static_cast<size_t>(a_Tag)].m_NameStart, static_cast<size_t>(m_Tags[static_cast<size_t>(a_Tag)].m_NameLength));
return res;
}
-
+
protected:
const char * m_Data;
size_t m_Length;
@@ -277,13 +277,13 @@ class cFastNBTWriter
{
public:
cFastNBTWriter(const AString & a_RootTagName = "");
-
+
void BeginCompound(const AString & a_Name);
void EndCompound(void);
-
+
void BeginList(const AString & a_Name, eTagType a_ChildrenType);
void EndList(void);
-
+
void AddByte (const AString & a_Name, unsigned char a_Value);
void AddShort (const AString & a_Name, Int16 a_Value);
void AddInt (const AString & a_Name, Int32 a_Value);
@@ -298,11 +298,11 @@ public:
{
AddByteArray(a_Name, a_Value.data(), a_Value.size());
}
-
+
const AString & GetResult(void) const {return m_Result; }
-
+
void Finish(void);
-
+
protected:
struct sParent
@@ -312,24 +312,24 @@ protected:
int m_Count; // for TAG_List, the element count
eTagType m_ItemType; // for TAG_List, the element type
} ;
-
+
static const int MAX_STACK = 50; // Highly doubtful that an NBT would be constructed this many levels deep
-
+
// These two fields emulate a stack. A raw array is used due to speed issues - no reallocations are allowed.
sParent m_Stack[MAX_STACK];
int m_CurrentStack;
-
+
AString m_Result;
-
+
bool IsStackTopCompound(void) const { return (m_Stack[m_CurrentStack].m_Type == TAG_Compound); }
-
+
void WriteString(const char * a_Data, UInt16 a_Length);
-
+
inline void TagCommon(const AString & a_Name, eTagType a_Type)
{
// If we're directly inside a list, check that the list is of the correct type:
ASSERT((m_Stack[m_CurrentStack].m_Type != TAG_List) || (m_Stack[m_CurrentStack].m_ItemType == a_Type));
-
+
if (IsStackTopCompound())
{
// Compound: add the type and name: