#include <BitStream.h>
Public Member Functions | |
BitStream () | |
Default Constructor. | |
BitStream (const unsigned int initialBytesToAllocate) | |
Create the bitstream, with some number of bytes to immediately allocate. | |
BitStream (unsigned char *_data, const unsigned int lengthInBytes, bool _copyData) | |
Initialize the BitStream, immediately setting the data it contains to a predefined pointer. | |
void | Reset (void) |
Resets the bitstream for reuse. | |
template<class templateType > | |
bool | Serialize (bool writeToBitstream, templateType &inOutTemplateVar) |
Bidirectional serialize/deserialize any integral type to/from a bitstream. | |
template<class templateType > | |
bool | SerializeDelta (bool writeToBitstream, templateType &inOutCurrentValue, const templateType &lastValue) |
Bidirectional serialize/deserialize any integral type to/from a bitstream. | |
template<class templateType > | |
bool | SerializeDelta (bool writeToBitstream, templateType &inOutCurrentValue) |
Bidirectional version of SerializeDelta when you don't know what the last value is, or there is no last value. | |
template<class templateType > | |
bool | SerializeCompressed (bool writeToBitstream, templateType &inOutTemplateVar) |
Bidirectional serialize/deserialize any integral type to/from a bitstream. | |
template<class templateType > | |
bool | SerializeCompressedDelta (bool writeToBitstream, templateType &inOutCurrentValue, const templateType &lastValue) |
Bidirectional serialize/deserialize any integral type to/from a bitstream. | |
template<class templateType > | |
bool | SerializeCompressedDelta (bool writeToBitstream, templateType &inOutTemplateVar) |
Save as SerializeCompressedDelta(templateType ¤tValue, const templateType &lastValue) when we have an unknown second parameter. | |
bool | Serialize (bool writeToBitstream, char *inOutByteArray, const unsigned int numberOfBytes) |
Bidirectional serialize/deserialize an array or casted stream or raw data. This does NOT do endian swapping. | |
bool | SerializeFloat16 (bool writeToBitstream, float &inOutFloat, float floatMin, float floatMax) |
Serialize a float into 2 bytes, spanning the range between floatMin and floatMax. | |
template<class serializationType , class sourceType > | |
bool | SerializeCasted (bool writeToBitstream, sourceType &value) |
template<class templateType > | |
bool | SerializeBitsFromIntegerRange (bool writeToBitstream, templateType &value, const templateType minimum, const templateType maximum, bool allowOutsideRange=false) |
template<class templateType > | |
bool | SerializeBitsFromIntegerRange (bool writeToBitstream, templateType &value, const templateType minimum, const templateType maximum, const int requiredBits, bool allowOutsideRange=false) |
template<class templateType > | |
bool | SerializeNormVector (bool writeToBitstream, templateType &x, templateType &y, templateType &z) |
Bidirectional serialize/deserialize a normalized 3D vector, using (at most) 4 bytes + 3 bits instead of 12-24 bytes. | |
template<class templateType > | |
bool | SerializeVector (bool writeToBitstream, templateType &x, templateType &y, templateType &z) |
Bidirectional serialize/deserialize a vector, using 10 bytes instead of 12. | |
template<class templateType > | |
bool | SerializeNormQuat (bool writeToBitstream, templateType &w, templateType &x, templateType &y, templateType &z) |
Bidirectional serialize/deserialize a normalized quaternion in 6 bytes + 4 bits instead of 16 bytes. Slightly lossy. | |
template<class templateType > | |
bool | SerializeOrthMatrix (bool writeToBitstream, templateType &m00, templateType &m01, templateType &m02, templateType &m10, templateType &m11, templateType &m12, templateType &m20, templateType &m21, templateType &m22) |
Bidirectional serialize/deserialize an orthogonal matrix by creating a quaternion, and writing 3 components of the quaternion in 2 bytes each. | |
bool | SerializeBits (bool writeToBitstream, unsigned char *inOutByteArray, const BitSize_t numberOfBitsToSerialize, const bool rightAlignedBits=true) |
Bidirectional serialize/deserialize numberToSerialize bits to/from the input. | |
template<class templateType > | |
void | Write (const templateType &inTemplateVar) |
Write any integral type to a bitstream. | |
template<class templateType > | |
void | WritePtr (templateType *inTemplateVar) |
Write the dereferenced pointer to any integral type to a bitstream. | |
template<class templateType > | |
void | WriteDelta (const templateType ¤tValue, const templateType &lastValue) |
Write any integral type to a bitstream. | |
template<class templateType > | |
void | WriteDelta (const templateType ¤tValue) |
WriteDelta when you don't know what the last value is, or there is no last value. | |
template<class templateType > | |
void | WriteCompressed (const templateType &inTemplateVar) |
Write any integral type to a bitstream. | |
template<class templateType > | |
void | WriteCompressedDelta (const templateType ¤tValue, const templateType &lastValue) |
Write any integral type to a bitstream. | |
template<class templateType > | |
void | WriteCompressedDelta (const templateType ¤tValue) |
Save as WriteCompressedDelta(const templateType ¤tValue, const templateType &lastValue) when we have an unknown second parameter. | |
template<class templateType > | |
bool | Read (templateType &outTemplateVar) |
Read any integral type from a bitstream. | |
template<class templateType > | |
bool | ReadDelta (templateType &outTemplateVar) |
Read any integral type from a bitstream. | |
template<class templateType > | |
bool | ReadCompressed (templateType &outTemplateVar) |
Read any integral type from a bitstream. | |
template<class templateType > | |
bool | ReadCompressedDelta (templateType &outTemplateVar) |
Read any integral type from a bitstream. | |
bool | Read (BitStream *bitStream, BitSize_t numberOfBits) |
Read one bitstream to another. | |
void | Write (const char *inputByteArray, const unsigned int numberOfBytes) |
Write an array or casted stream or raw data. This does NOT do endian swapping. | |
void | Write (BitStream *bitStream, BitSize_t numberOfBits) |
Write one bitstream to another. | |
void | WriteFloat16 (float x, float floatMin, float floatMax) |
Write a float into 2 bytes, spanning the range between floatMin and floatMax. | |
template<class serializationType , class sourceType > | |
void | WriteCasted (const sourceType &value) |
template<class templateType > | |
void | WriteBitsFromIntegerRange (const templateType value, const templateType minimum, const templateType maximum, bool allowOutsideRange=false) |
template<class templateType > | |
void | WriteBitsFromIntegerRange (const templateType value, const templateType minimum, const templateType maximum, const int requiredBits, bool allowOutsideRange=false) |
template<class templateType > | |
void | WriteNormVector (templateType x, templateType y, templateType z) |
Write a normalized 3D vector, using (at most) 4 bytes + 3 bits instead of 12-24 bytes. | |
template<class templateType > | |
void | WriteVector (templateType x, templateType y, templateType z) |
Write a vector, using 10 bytes instead of 12. | |
template<class templateType > | |
void | WriteNormQuat (templateType w, templateType x, templateType y, templateType z) |
Write a normalized quaternion in 6 bytes + 4 bits instead of 16 bytes. Slightly lossy. | |
template<class templateType > | |
void | WriteOrthMatrix (templateType m00, templateType m01, templateType m02, templateType m10, templateType m11, templateType m12, templateType m20, templateType m21, templateType m22) |
Write an orthogonal matrix by creating a quaternion, and writing 3 components of the quaternion in 2 bytes each. | |
bool | Read (char *output, const unsigned int numberOfBytes) |
Read an array or casted stream of byte. | |
bool | ReadFloat16 (float &outFloat, float floatMin, float floatMax) |
Read a float into 2 bytes, spanning the range between floatMin and floatMax. | |
template<class serializationType , class sourceType > | |
bool | ReadCasted (sourceType &value) |
template<class templateType > | |
bool | ReadBitsFromIntegerRange (templateType &value, const templateType minimum, const templateType maximum, bool allowOutsideRange=false) |
template<class templateType > | |
bool | ReadBitsFromIntegerRange (templateType &value, const templateType minimum, const templateType maximum, const int requiredBits, bool allowOutsideRange=false) |
template<class templateType > | |
bool | ReadNormVector (templateType &x, templateType &y, templateType &z) |
Read a normalized 3D vector, using (at most) 4 bytes + 3 bits instead of 12-24 bytes. | |
template<class templateType > | |
bool | ReadVector (templateType &x, templateType &y, templateType &z) |
Read 3 floats or doubles, using 10 bytes, where those float or doubles comprise a vector. | |
template<class templateType > | |
bool | ReadNormQuat (templateType &w, templateType &x, templateType &y, templateType &z) |
Read a normalized quaternion in 6 bytes + 4 bits instead of 16 bytes. | |
template<class templateType > | |
bool | ReadOrthMatrix (templateType &m00, templateType &m01, templateType &m02, templateType &m10, templateType &m11, templateType &m12, templateType &m20, templateType &m21, templateType &m22) |
Read an orthogonal matrix from a quaternion, reading 3 components of the quaternion in 2 bytes each and extrapolatig the 4th. | |
void | ResetReadPointer (void) |
Sets the read pointer back to the beginning of your data. | |
void | ResetWritePointer (void) |
Sets the write pointer back to the beginning of your data. | |
void | AssertStreamEmpty (void) |
This is good to call when you are done with the stream to make sure you didn't leave any data left over void. | |
void | PrintBits (char *out) const |
RAKNET_DEBUG_PRINTF the bits in the stream. Great for debugging. | |
void | IgnoreBits (const BitSize_t numberOfBits) |
Ignore data we don't intend to read. | |
void | IgnoreBytes (const unsigned int numberOfBytes) |
Ignore data we don't intend to read. | |
void | SetWriteOffset (const BitSize_t offset) |
Move the write pointer to a position on the array. | |
BitSize_t | GetNumberOfBitsUsed (void) const |
Returns the length in bits of the stream. | |
BitSize_t | GetNumberOfBytesUsed (void) const |
Returns the length in bytes of the stream. | |
BitSize_t | GetReadOffset (void) const |
Returns the number of bits into the stream that we have read. | |
void | SetReadOffset (const BitSize_t newReadOffset) |
Sets the read bit index. | |
BitSize_t | GetNumberOfUnreadBits (void) const |
Returns the number of bits left in the stream that haven't been read. | |
BitSize_t | CopyData (unsigned char **_data) const |
Makes a copy of the internal data for you _data will point to the stream. Partial bytes are left aligned. | |
unsigned char * | GetData (void) const |
void | WriteBits (const unsigned char *inByteArray, BitSize_t numberOfBitsToWrite, const bool rightAlignedBits=true) |
Write numberToWrite bits from the input source. | |
void | WriteAlignedBytes (const unsigned char *inByteArray, const unsigned int numberOfBytesToWrite) |
Align the bitstream to the byte boundary and then write the specified number of bits. | |
void | WriteAlignedBytesSafe (const char *inByteArray, const unsigned int inputLength, const unsigned int maxBytesToWrite) |
Aligns the bitstream, writes inputLength, and writes input. Won't write beyond maxBytesToWrite. | |
bool | ReadAlignedBytes (unsigned char *inOutByteArray, const unsigned int numberOfBytesToRead) |
Read bits, starting at the next aligned bits. | |
bool | ReadAlignedBytesSafe (char *inOutByteArray, int &inputLength, const int maxBytesToRead) |
Reads what was written by WriteAlignedBytesSafe. | |
bool | ReadAlignedBytesSafeAlloc (char **outByteArray, int &inputLength, const unsigned int maxBytesToRead) |
Same as ReadAlignedBytesSafe() but allocates the memory for you using new, rather than assuming it is safe to write to. | |
void | AlignWriteToByteBoundary (void) |
Align the next write and/or read to a byte boundary. | |
void | AlignReadToByteBoundary (void) |
Align the next write and/or read to a byte boundary. | |
bool | ReadBits (unsigned char *inOutByteArray, BitSize_t numberOfBitsToRead, const bool alignBitsToRight=true) |
Read numberOfBitsToRead bits to the output source. | |
void | Write0 (void) |
Write a 0. | |
void | Write1 (void) |
Write a 1. | |
bool | ReadBit (void) |
Reads 1 bit and returns true if that bit is 1 and false if it is 0. | |
void | AssertCopyData (void) |
If we used the constructor version with copy data off, this makes sure it is set to on and the data pointed to is copied. | |
void | SetNumberOfBitsAllocated (const BitSize_t lengthInBits) |
Use this if you pass a pointer copy to the constructor (_copyData==false) and want to overallocate to prevent reallocation. | |
void | AddBitsAndReallocate (const BitSize_t numberOfBitsToWrite) |
Reallocates (if necessary) in preparation of writing numberOfBitsToWrite. | |
bool | Read (char *varString) |
Read strings, non reference. | |
void | PadWithZeroToByteLength (unsigned int bytes) |
Write zeros until the bitstream is filled up to bytes. | |
template<> | |
void | Write (const bool &inTemplateVar) |
Write a bool to a bitstream. | |
template<> | |
void | Write (const SystemAddress &inTemplateVar) |
Write a systemAddress to a bitstream. | |
template<> | |
void | Write (const RakString &inTemplateVar) |
Write a string to a bitstream. | |
template<> | |
void | WriteDelta (const bool ¤tValue, const bool &lastValue) |
Write a bool delta. Same thing as just calling Write. | |
template<> | |
void | WriteCompressed (const float &inTemplateVar) |
For values between -1 and 1. | |
template<> | |
void | WriteCompressed (const double &inTemplateVar) |
For values between -1 and 1. | |
template<> | |
void | WriteCompressed (const RakString &inTemplateVar) |
Compress the string. | |
template<> | |
void | WriteCompressedDelta (const bool ¤tValue, const bool &lastValue) |
Write a bool delta. Same thing as just calling Write. | |
template<> | |
void | WriteCompressedDelta (const bool ¤tValue) |
Save as WriteCompressedDelta(bool currentValue, const templateType &lastValue) when we have an unknown second bool. | |
template<> | |
bool | Read (bool &outTemplateVar) |
Read a bool from a bitstream. | |
template<> | |
bool | Read (SystemAddress &outTemplateVar) |
Read a systemAddress from a bitstream. | |
template<> | |
bool | ReadDelta (bool &outTemplateVar) |
Read a bool from a bitstream. | |
template<> | |
bool | ReadCompressed (float &outTemplateVar) |
For values between -1 and 1. | |
template<> | |
bool | ReadCompressed (double &outTemplateVar) |
For values between -1 and 1. | |
template<> | |
bool | ReadCompressed (RakString &outTemplateVar) |
For strings. | |
template<> | |
bool | ReadCompressedDelta (bool &outTemplateVar) |
Read a bool from a bitstream. | |
Static Public Member Functions | |
static int | NumberOfLeadingZeroes (uint8_t x) |
static bool | DoEndianSwap (void) |
---- Member function template specialization declarations ---- |
RakNet::BitStream::BitStream | ( | const unsigned int | initialBytesToAllocate | ) |
Create the bitstream, with some number of bytes to immediately allocate.
There is no benefit to calling this, unless you know exactly how many bytes you need and it is greater than BITSTREAM_STACK_ALLOCATION_SIZE. In that case all it does is save you one or more realloc calls.
[in] | initialBytesToAllocate | the number of bytes to pre-allocate. |
RakNet::BitStream::BitStream | ( | unsigned char * | _data, | |
const unsigned int | lengthInBytes, | |||
bool | _copyData | |||
) |
Initialize the BitStream, immediately setting the data it contains to a predefined pointer.
Set _copyData to true if you want to make an internal copy of the data you are passing. Set it to false to just save a pointer to the data. You shouldn't call Write functions with _copyData as false, as this will write to unallocated memory 99% of the time you will use this function to cast Packet::data to a bitstream for reading, in which case you should write something as follows:
RakNet::BitStream bs(packet->data, packet->length, false);
[in] | _data | An array of bytes. |
[in] | lengthInBytes | Size of the _data. |
[in] | _copyData | true or false to make a copy of _data or not. |
void RakNet::BitStream::AlignReadToByteBoundary | ( | void | ) | [inline] |
Align the next write and/or read to a byte boundary.
This can be used to 'waste' bits to byte align for efficiency reasons It can also be used to force coalesced bitstreams to start on byte boundaries so so WriteAlignedBits and ReadAlignedBits both calculate the same offset when aligning.
void RakNet::BitStream::AlignWriteToByteBoundary | ( | void | ) | [inline] |
Align the next write and/or read to a byte boundary.
This can be used to 'waste' bits to byte align for efficiency reasons It can also be used to force coalesced bitstreams to start on byte boundaries so so WriteAlignedBits and ReadAlignedBits both calculate the same offset when aligning.
BitSize_t RakNet::BitStream::CopyData | ( | unsigned char ** | _data | ) | const |
Makes a copy of the internal data for you _data will point to the stream. Partial bytes are left aligned.
[out] | _data | The allocated copy of GetData() |
unsigned char* RakNet::BitStream::GetData | ( | void | ) | const [inline] |
Gets the data that BitStream is writing to / reading from. Partial bytes are left aligned.
void RakNet::BitStream::IgnoreBits | ( | const BitSize_t | numberOfBits | ) |
Ignore data we don't intend to read.
[in] | numberOfBits | The number of bits to ignore |
void RakNet::BitStream::IgnoreBytes | ( | const unsigned int | numberOfBytes | ) |
Ignore data we don't intend to read.
[in] | numberOfBits | The number of bytes to ignore |
static int RakNet::BitStream::NumberOfLeadingZeroes | ( | uint8_t | x | ) | [static] |
Get the number of leading zeros for a number
[in] | x | Number to test |
bool RakNet::BitStream::Read | ( | SystemAddress & | outTemplateVar | ) | [inline] |
Read a systemAddress from a bitstream.
[in] | outTemplateVar | The value to read |
bool RakNet::BitStream::Read | ( | bool & | outTemplateVar | ) | [inline] |
Read a bool from a bitstream.
[in] | outTemplateVar | The value to read |
bool RakNet::BitStream::Read | ( | char * | output, | |
const unsigned int | numberOfBytes | |||
) |
Read an array or casted stream of byte.
The array is raw data. There is no automatic endian conversion with this function
[in] | output | The result byte array. It should be larger than numberOfBytes. |
[in] | numberOfBytes | The number of byte to read |
bool RakNet::BitStream::Read | ( | BitStream * | bitStream, | |
BitSize_t | numberOfBits | |||
) |
Read one bitstream to another.
[in] | numberOfBits | bits to read |
bitStream | the bitstream to read into from |
bool RakNet::BitStream::Read | ( | templateType & | outTemplateVar | ) | [inline] |
Read any integral type from a bitstream.
Read any integral type from a bitstream. Define __BITSTREAM_NATIVE_END if you need endian swapping.
Define __BITSTREAM_NATIVE_END if you need endian swapping.
[in] | outTemplateVar | The value to read |
[in] | outTemplateVar | The value to read |
bool RakNet::BitStream::ReadAlignedBytes | ( | unsigned char * | inOutByteArray, | |
const unsigned int | numberOfBytesToRead | |||
) |
Read bits, starting at the next aligned bits.
Note that the modulus 8 starting offset of the sequence must be the same as was used with WriteBits. This will be a problem with packet coalescence unless you byte align the coalesced packets.
[in] | inOutByteArray | The byte array larger than numberOfBytesToRead |
[in] | numberOfBytesToRead | The number of byte to read from the internal state |
bool RakNet::BitStream::ReadAlignedBytesSafe | ( | char * | inOutByteArray, | |
int & | inputLength, | |||
const int | maxBytesToRead | |||
) |
Reads what was written by WriteAlignedBytesSafe.
[in] | inOutByteArray | The data |
[in] | maxBytesToRead | Maximum number of bytes to read |
bool RakNet::BitStream::ReadAlignedBytesSafeAlloc | ( | char ** | outByteArray, | |
int & | inputLength, | |||
const unsigned int | maxBytesToRead | |||
) |
Same as ReadAlignedBytesSafe() but allocates the memory for you using new, rather than assuming it is safe to write to.
[in] | outByteArray | outByteArray will be deleted if it is not a pointer to 0 |
bool RakNet::BitStream::ReadBits | ( | unsigned char * | inOutByteArray, | |
BitSize_t | numberOfBitsToRead, | |||
const bool | alignBitsToRight = true | |||
) |
Read numberOfBitsToRead bits to the output source.
alignBitsToRight should be set to true to convert internal bitstream data to userdata. It should be false if you used WriteBits with rightAlignedBits false
[in] | inOutByteArray | The resulting bits array |
[in] | numberOfBitsToRead | The number of bits to read |
[in] | alignBitsToRight | if true bits will be right aligned. |
bool RakNet::BitStream::ReadBitsFromIntegerRange | ( | templateType & | value, | |
const templateType | minimum, | |||
const templateType | maximum, | |||
const int | requiredBits, | |||
bool | allowOutsideRange = false | |||
) | [inline] |
[in] | requiredBits | Primarily for internal use, called from above function() after calculating number of bits needed to represent maximum-minimum |
bool RakNet::BitStream::ReadBitsFromIntegerRange | ( | templateType & | value, | |
const templateType | minimum, | |||
const templateType | maximum, | |||
bool | allowOutsideRange = false | |||
) | [inline] |
Given the minimum and maximum values for an integer type, figure out the minimum number of bits to represent the range Then read only those bits
[in] | value | Integer value to read, which should be between minimum and maximum |
[in] | minimum | Minimum value of value |
[in] | maximum | Maximum value of value |
[in] | allowOutsideRange | If true, all sends will take an extra bit, however value can deviate from outside minimum and maximum. If false, will assert if the value deviates. This should match the corresponding value passed to Write(). |
bool RakNet::BitStream::ReadCasted | ( | sourceType & | value | ) | [inline] |
Read one type serialized to another (smaller) type, to save bandwidth serializationType should be uint8_t, uint16_t, uint24_t, or uint32_t Example: int num; ReadCasted<uint8_t>(num); would read 1 bytefrom the stream, and put the value in an integer
[in] | value | The value to write |
bool RakNet::BitStream::ReadCompressed | ( | templateType & | outTemplateVar | ) | [inline] |
Read any integral type from a bitstream.
Undefine __BITSTREAM_NATIVE_END if you need endian swapping. For floating point, this is lossy, using 2 bytes for a float and 4 for a double. The range must be between -1 and +1. For non-floating point, this is lossless, but only has benefit if you use less than half the bits of the type If you are not using __BITSTREAM_NATIVE_END the opposite is true for types larger than 1 byte
[in] | outTemplateVar | The value to read |
[in] | outTemplateVar | The value to read |
bool RakNet::BitStream::ReadCompressedDelta | ( | bool & | outTemplateVar | ) | [inline] |
Read a bool from a bitstream.
[in] | outTemplateVar | The value to read |
bool RakNet::BitStream::ReadCompressedDelta | ( | templateType & | outTemplateVar | ) | [inline] |
Read any integral type from a bitstream.
If the written value differed from the value compared against in the write function, var will be updated. Otherwise it will retain the current value. the current value will be updated. For floating point, this is lossy, using 2 bytes for a float and 4 for a double. The range must be between -1 and +1. For non-floating point, this is lossless, but only has benefit if you use less than half the bits of the type If you are not using __BITSTREAM_NATIVE_END the opposite is true for types larger than 1 byte ReadCompressedDelta is only valid from a previous call to WriteDelta
[in] | outTemplateVar | The value to read |
[in] | outTemplateVar | The value to read |
bool RakNet::BitStream::ReadDelta | ( | bool & | outTemplateVar | ) | [inline] |
Read a bool from a bitstream.
[in] | outTemplateVar | The value to read |
bool RakNet::BitStream::ReadDelta | ( | templateType & | outTemplateVar | ) | [inline] |
Read any integral type from a bitstream.
If the written value differed from the value compared against in the write function, var will be updated. Otherwise it will retain the current value. ReadDelta is only valid from a previous call to WriteDelta
[in] | outTemplateVar | The value to read |
[in] | outTemplateVar | The value to read |
bool RakNet::BitStream::ReadFloat16 | ( | float & | outFloat, | |
float | floatMin, | |||
float | floatMax | |||
) |
Read a float into 2 bytes, spanning the range between floatMin and floatMax.
[in] | outFloat | The float to read |
[in] | floatMin | Predetermined minimum value of f |
[in] | floatMax | Predetermined maximum value of f |
bool RakNet::BitStream::ReadNormQuat | ( | templateType & | w, | |
templateType & | x, | |||
templateType & | y, | |||
templateType & | z | |||
) | [inline] |
Read a normalized quaternion in 6 bytes + 4 bits instead of 16 bytes.
[in] | w | w |
[in] | x | x |
[in] | y | y |
[in] | z | z |
bool RakNet::BitStream::ReadNormVector | ( | templateType & | x, | |
templateType & | y, | |||
templateType & | z | |||
) | [inline] |
Read a normalized 3D vector, using (at most) 4 bytes + 3 bits instead of 12-24 bytes.
Will further compress y or z axis aligned vectors. Accurate to 1/32767.5.
[in] | x | x |
[in] | y | y |
[in] | z | z |
bool RakNet::BitStream::ReadOrthMatrix | ( | templateType & | m00, | |
templateType & | m01, | |||
templateType & | m02, | |||
templateType & | m10, | |||
templateType & | m11, | |||
templateType & | m12, | |||
templateType & | m20, | |||
templateType & | m21, | |||
templateType & | m22 | |||
) | [inline] |
Read an orthogonal matrix from a quaternion, reading 3 components of the quaternion in 2 bytes each and extrapolatig the 4th.
Use 6 bytes instead of 36 Lossy, although the result is renormalized
bool RakNet::BitStream::ReadVector | ( | templateType & | x, | |
templateType & | y, | |||
templateType & | z | |||
) | [inline] |
Read 3 floats or doubles, using 10 bytes, where those float or doubles comprise a vector.
Loses accuracy to about 3/10ths and only saves 2 bytes, so only use if accuracy is not important.
[in] | x | x |
[in] | y | y |
[in] | z | z |
bool RakNet::BitStream::Serialize | ( | bool | writeToBitstream, | |
char * | inOutByteArray, | |||
const unsigned int | numberOfBytes | |||
) | [inline] |
Bidirectional serialize/deserialize an array or casted stream or raw data. This does NOT do endian swapping.
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | inOutByteArray | a byte buffer |
[in] | numberOfBytes | the size of input in bytes |
bool RakNet::BitStream::Serialize | ( | bool | writeToBitstream, | |
templateType & | inOutTemplateVar | |||
) | [inline] |
Bidirectional serialize/deserialize any integral type to/from a bitstream.
Undefine __BITSTREAM_NATIVE_END if you need endian swapping.
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | inOutTemplateVar | The value to write |
bool RakNet::BitStream::SerializeBits | ( | bool | writeToBitstream, | |
unsigned char * | inOutByteArray, | |||
const BitSize_t | numberOfBitsToSerialize, | |||
const bool | rightAlignedBits = true | |||
) | [inline] |
Bidirectional serialize/deserialize numberToSerialize bits to/from the input.
Right aligned data means in the case of a partial byte, the bits are aligned from the right (bit 0) rather than the left (as in the normal internal representation) You would set this to true when writing user data, and false when copying bitstream data, such as writing one bitstream to another
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | inOutByteArray | The data |
[in] | numberOfBitsToSerialize | The number of bits to write |
[in] | rightAlignedBits | if true data will be right aligned |
bool RakNet::BitStream::SerializeBitsFromIntegerRange | ( | bool | writeToBitstream, | |
templateType & | value, | |||
const templateType | minimum, | |||
const templateType | maximum, | |||
const int | requiredBits, | |||
bool | allowOutsideRange = false | |||
) | [inline] |
[in] | requiredBits | Primarily for internal use, called from above function() after calculating number of bits needed to represent maximum-minimum |
bool RakNet::BitStream::SerializeBitsFromIntegerRange | ( | bool | writeToBitstream, | |
templateType & | value, | |||
const templateType | minimum, | |||
const templateType | maximum, | |||
bool | allowOutsideRange = false | |||
) | [inline] |
Given the minimum and maximum values for an integer type, figure out the minimum number of bits to represent the range Then serialize only those bits
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | value | Integer value to write, which should be between minimum and maximum |
[in] | minimum | Minimum value of value |
[in] | maximum | Maximum value of value |
[in] | allowOutsideRange | If true, all sends will take an extra bit, however value can deviate from outside minimum and maximum. If false, will assert if the value deviates |
bool RakNet::BitStream::SerializeCasted | ( | bool | writeToBitstream, | |
sourceType & | value | |||
) | [inline] |
Serialize one type casted to another (smaller) type, to save bandwidth serializationType should be uint8_t, uint16_t, uint24_t, or uint32_t Example: int num=53; SerializeCasted<uint8_t>(true, num); would use 1 byte to write what would otherwise be an integer (4 or 8 bytes)
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | value | The value to serialize |
bool RakNet::BitStream::SerializeCompressed | ( | bool | writeToBitstream, | |
templateType & | inOutTemplateVar | |||
) | [inline] |
Bidirectional serialize/deserialize any integral type to/from a bitstream.
Undefine __BITSTREAM_NATIVE_END if you need endian swapping. If you are not using __BITSTREAM_NATIVE_END the opposite is true for types larger than 1 byte For floating point, this is lossy, using 2 bytes for a float and 4 for a double. The range must be between -1 and +1. For non-floating point, this is lossless, but only has benefit if you use less than half the bits of the type
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | inOutTemplateVar | The value to write |
bool RakNet::BitStream::SerializeCompressedDelta | ( | bool | writeToBitstream, | |
templateType & | inOutTemplateVar | |||
) | [inline] |
Save as SerializeCompressedDelta(templateType ¤tValue, const templateType &lastValue) when we have an unknown second parameter.
bool RakNet::BitStream::SerializeCompressedDelta | ( | bool | writeToBitstream, | |
templateType & | inOutCurrentValue, | |||
const templateType & | lastValue | |||
) | [inline] |
Bidirectional serialize/deserialize any integral type to/from a bitstream.
If the current value is different from the last value the current value will be written. Otherwise, a single bit will be written For floating point, this is lossy, using 2 bytes for a float and 4 for a double. The range must be between -1 and +1. For non-floating point, this is lossless, but only has benefit if you use less than half the bits of the type If you are not using __BITSTREAM_NATIVE_END the opposite is true for types larger than 1 byte
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | inOutCurrentValue | The current value to write |
[in] | lastValue | The last value to compare against. Only used if writeToBitstream is true. |
bool RakNet::BitStream::SerializeDelta | ( | bool | writeToBitstream, | |
templateType & | inOutCurrentValue | |||
) | [inline] |
Bidirectional version of SerializeDelta when you don't know what the last value is, or there is no last value.
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | inOutCurrentValue | The current value to write |
bool RakNet::BitStream::SerializeDelta | ( | bool | writeToBitstream, | |
templateType & | inOutCurrentValue, | |||
const templateType & | lastValue | |||
) | [inline] |
Bidirectional serialize/deserialize any integral type to/from a bitstream.
If the current value is different from the last value the current value will be written. Otherwise, a single bit will be written
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | inOutCurrentValue | The current value to write |
[in] | lastValue | The last value to compare against. Only used if writeToBitstream is true. |
bool RakNet::BitStream::SerializeFloat16 | ( | bool | writeToBitstream, | |
float & | inOutFloat, | |||
float | floatMin, | |||
float | floatMax | |||
) |
Serialize a float into 2 bytes, spanning the range between floatMin and floatMax.
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | inOutFloat | The float to write |
[in] | floatMin | Predetermined minimum value of f |
[in] | floatMax | Predetermined maximum value of f |
bool RakNet::BitStream::SerializeNormQuat | ( | bool | writeToBitstream, | |
templateType & | w, | |||
templateType & | x, | |||
templateType & | y, | |||
templateType & | z | |||
) | [inline] |
Bidirectional serialize/deserialize a normalized quaternion in 6 bytes + 4 bits instead of 16 bytes. Slightly lossy.
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | w | w |
[in] | x | x |
[in] | y | y |
[in] | z | z |
bool RakNet::BitStream::SerializeNormVector | ( | bool | writeToBitstream, | |
templateType & | x, | |||
templateType & | y, | |||
templateType & | z | |||
) | [inline] |
Bidirectional serialize/deserialize a normalized 3D vector, using (at most) 4 bytes + 3 bits instead of 12-24 bytes.
Will further compress y or z axis aligned vectors. Accurate to 1/32767.5.
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | x | x |
[in] | y | y |
[in] | z | z |
bool RakNet::BitStream::SerializeOrthMatrix | ( | bool | writeToBitstream, | |
templateType & | m00, | |||
templateType & | m01, | |||
templateType & | m02, | |||
templateType & | m10, | |||
templateType & | m11, | |||
templateType & | m12, | |||
templateType & | m20, | |||
templateType & | m21, | |||
templateType & | m22 | |||
) | [inline] |
Bidirectional serialize/deserialize an orthogonal matrix by creating a quaternion, and writing 3 components of the quaternion in 2 bytes each.
Use 6 bytes instead of 36 Lossy, although the result is renormalized
bool RakNet::BitStream::SerializeVector | ( | bool | writeToBitstream, | |
templateType & | x, | |||
templateType & | y, | |||
templateType & | z | |||
) | [inline] |
Bidirectional serialize/deserialize a vector, using 10 bytes instead of 12.
Loses accuracy to about 3/10ths and only saves 2 bytes, so only use if accuracy is not important.
[in] | writeToBitstream | true to write from your data to this bitstream. False to read from this bitstream and write to your data |
[in] | x | x |
[in] | y | y |
[in] | z | z |
void RakNet::BitStream::SetWriteOffset | ( | const BitSize_t | offset | ) |
Move the write pointer to a position on the array.
[in] | offset | the offset from the start of the array. |
void RakNet::BitStream::Write | ( | const RakString & | inTemplateVar | ) | [inline] |
Write a string to a bitstream.
[in] | var | The value to write |
void RakNet::BitStream::Write | ( | const SystemAddress & | inTemplateVar | ) | [inline] |
Write a systemAddress to a bitstream.
[in] | inTemplateVar | The value to write |
void RakNet::BitStream::Write | ( | const bool & | inTemplateVar | ) | [inline] |
Write a bool to a bitstream.
[in] | inTemplateVar | The value to write |
void RakNet::BitStream::Write | ( | BitStream * | bitStream, | |
BitSize_t | numberOfBits | |||
) |
Write one bitstream to another.
[in] | numberOfBits | bits to write |
bitStream | the bitstream to copy from |
void RakNet::BitStream::Write | ( | const char * | inputByteArray, | |
const unsigned int | numberOfBytes | |||
) |
Write an array or casted stream or raw data. This does NOT do endian swapping.
[in] | inputByteArray | a byte buffer |
[in] | numberOfBytes | the size of input in bytes |
void RakNet::BitStream::Write | ( | const templateType & | inTemplateVar | ) | [inline] |
Write any integral type to a bitstream.
Undefine __BITSTREAM_NATIVE_END if you need endian swapping.
[in] | inTemplateVar | The value to write |
void RakNet::BitStream::WriteAlignedBytes | ( | const unsigned char * | inByteArray, | |
const unsigned int | numberOfBytesToWrite | |||
) |
Align the bitstream to the byte boundary and then write the specified number of bits.
This is faster than WriteBits but wastes the bits to do the alignment and requires you to call ReadAlignedBits at the corresponding read position.
[in] | inByteArray | The data |
[in] | numberOfBytesToWrite | The size of input. |
void RakNet::BitStream::WriteAlignedBytesSafe | ( | const char * | inByteArray, | |
const unsigned int | inputLength, | |||
const unsigned int | maxBytesToWrite | |||
) |
Aligns the bitstream, writes inputLength, and writes input. Won't write beyond maxBytesToWrite.
[in] | inByteArray | The data |
[in] | inputLength | The size of input. |
[in] | maxBytesToWrite | Max bytes to write |
void RakNet::BitStream::WriteBits | ( | const unsigned char * | inByteArray, | |
BitSize_t | numberOfBitsToWrite, | |||
const bool | rightAlignedBits = true | |||
) |
Write numberToWrite bits from the input source.
Right aligned data means in the case of a partial byte, the bits are aligned from the right (bit 0) rather than the left (as in the normal internal representation) You would set this to true when writing user data, and false when copying bitstream data, such as writing one bitstream to another.
[in] | inByteArray | The data |
[in] | numberOfBitsToWrite | The number of bits to write |
[in] | rightAlignedBits | if true data will be right aligned |
void RakNet::BitStream::WriteBitsFromIntegerRange | ( | const templateType | value, | |
const templateType | minimum, | |||
const templateType | maximum, | |||
const int | requiredBits, | |||
bool | allowOutsideRange = false | |||
) | [inline] |
[in] | requiredBits | Primarily for internal use, called from above function() after calculating number of bits needed to represent maximum-minimum |
void RakNet::BitStream::WriteBitsFromIntegerRange | ( | const templateType | value, | |
const templateType | minimum, | |||
const templateType | maximum, | |||
bool | allowOutsideRange = false | |||
) | [inline] |
Given the minimum and maximum values for an integer type, figure out the minimum number of bits to represent the range Then write only those bits
[in] | value | Integer value to write, which should be between minimum and maximum |
[in] | minimum | Minimum value of value |
[in] | maximum | Maximum value of value |
[in] | allowOutsideRange | If true, all sends will take an extra bit, however value can deviate from outside minimum and maximum. If false, will assert if the value deviates. This should match the corresponding value passed to Read(). |
void RakNet::BitStream::WriteCasted | ( | const sourceType & | value | ) | [inline] |
Write one type serialized as another (smaller) type, to save bandwidth serializationType should be uint8_t, uint16_t, uint24_t, or uint32_t Example: int num=53; WriteCasted<uint8_t>(num); would use 1 byte to write what would otherwise be an integer (4 or 8 bytes)
[in] | value | The value to write |
void RakNet::BitStream::WriteCompressed | ( | const templateType & | inTemplateVar | ) | [inline] |
Write any integral type to a bitstream.
Undefine __BITSTREAM_NATIVE_END if you need endian swapping. If you are not using __BITSTREAM_NATIVE_END the opposite is true for types larger than 1 byte For floating point, this is lossy, using 2 bytes for a float and 4 for a double. The range must be between -1 and +1. For non-floating point, this is lossless, but only has benefit if you use less than half the bits of the type
[in] | inTemplateVar | The value to write |
[in] | inTemplateVar | The value to write |
void RakNet::BitStream::WriteCompressedDelta | ( | const bool & | currentValue, | |
const bool & | lastValue | |||
) | [inline] |
Write a bool delta. Same thing as just calling Write.
[in] | currentValue | The current value to write |
[in] | lastValue | The last value to compare against |
void RakNet::BitStream::WriteCompressedDelta | ( | const templateType & | currentValue | ) | [inline] |
Save as WriteCompressedDelta(const templateType ¤tValue, const templateType &lastValue) when we have an unknown second parameter.
Save as WriteCompressedDelta(const templateType ¤tValue, const templateType &lastValue) when we have an unknown second parameter.
void RakNet::BitStream::WriteCompressedDelta | ( | const templateType & | currentValue, | |
const templateType & | lastValue | |||
) | [inline] |
Write any integral type to a bitstream.
If the current value is different from the last value the current value will be written. Otherwise, a single bit will be written For floating point, this is lossy, using 2 bytes for a float and 4 for a double. The range must be between -1 and +1. For non-floating point, this is lossless, but only has benefit if you use less than half the bits of the type If you are not using __BITSTREAM_NATIVE_END the opposite is true for types larger than 1 byte
[in] | currentValue | The current value to write |
[in] | lastValue | The last value to compare against |
[in] | currentValue | The current value to write |
[in] | lastValue | The last value to compare against |
void RakNet::BitStream::WriteDelta | ( | const bool & | currentValue, | |
const bool & | lastValue | |||
) | [inline] |
Write a bool delta. Same thing as just calling Write.
[in] | currentValue | The current value to write |
[in] | lastValue | The last value to compare against |
void RakNet::BitStream::WriteDelta | ( | const templateType & | currentValue | ) | [inline] |
WriteDelta when you don't know what the last value is, or there is no last value.
[in] | currentValue | The current value to write |
void RakNet::BitStream::WriteDelta | ( | const templateType & | currentValue, | |
const templateType & | lastValue | |||
) | [inline] |
Write any integral type to a bitstream.
If the current value is different from the last value the current value will be written. Otherwise, a single bit will be written
[in] | currentValue | The current value to write |
[in] | lastValue | The last value to compare against |
[in] | currentValue | The current value to write |
[in] | lastValue | The last value to compare against |
void RakNet::BitStream::WriteFloat16 | ( | float | x, | |
float | floatMin, | |||
float | floatMax | |||
) |
Write a float into 2 bytes, spanning the range between floatMin and floatMax.
[in] | x | The float to write |
[in] | floatMin | Predetermined minimum value of f |
[in] | floatMax | Predetermined maximum value of f |
void RakNet::BitStream::WriteNormQuat | ( | templateType | w, | |
templateType | x, | |||
templateType | y, | |||
templateType | z | |||
) | [inline] |
Write a normalized quaternion in 6 bytes + 4 bits instead of 16 bytes. Slightly lossy.
[in] | w | w |
[in] | x | x |
[in] | y | y |
[in] | z | z |
void RakNet::BitStream::WriteNormVector | ( | templateType | x, | |
templateType | y, | |||
templateType | z | |||
) | [inline] |
Write a normalized 3D vector, using (at most) 4 bytes + 3 bits instead of 12-24 bytes.
Will further compress y or z axis aligned vectors. Accurate to 1/32767.5.
[in] | x | x |
[in] | y | y |
[in] | z | z |
void RakNet::BitStream::WriteOrthMatrix | ( | templateType | m00, | |
templateType | m01, | |||
templateType | m02, | |||
templateType | m10, | |||
templateType | m11, | |||
templateType | m12, | |||
templateType | m20, | |||
templateType | m21, | |||
templateType | m22 | |||
) | [inline] |
Write an orthogonal matrix by creating a quaternion, and writing 3 components of the quaternion in 2 bytes each.
Use 6 bytes instead of 36 Lossy, although the result is renormalized
void RakNet::BitStream::WritePtr | ( | templateType * | inTemplateVar | ) | [inline] |
Write the dereferenced pointer to any integral type to a bitstream.
Undefine __BITSTREAM_NATIVE_END if you need endian swapping.
[in] | inTemplateVar | The value to write |
void RakNet::BitStream::WriteVector | ( | templateType | x, | |
templateType | y, | |||
templateType | z | |||
) | [inline] |
Write a vector, using 10 bytes instead of 12.
Loses accuracy to about 3/10ths and only saves 2 bytes, so only use if accuracy is not important.
[in] | x | x |
[in] | y | y |
[in] | z | z |