This page has been translated automatically.
UnigineScript
The Language
Core Library
Engine Library
Node-Related Classes
GUI-Related Classes
Plugins Library
High-Level Systems
Samples
Usage Examples
C++ API
API Reference
Integration Samples
Usage Examples
C++ Plugins
Migration
Migrating to UNIGINE 2.0
C++ API Migration
Migrating from UNIGINE 2.0 to UNIGINE 2.1
Внимание! Эта версия документация УСТАРЕЛА, поскольку относится к более ранней версии SDK! Пожалуйста, переключитесь на самую актуальную документацию для последней версии SDK.
Внимание! Эта версия документации описывает устаревшую версию SDK, которая больше не поддерживается! Пожалуйста, обновитесь до последней версии SDK.

Unigine::Blob Class

Interface for data handling.

To use this class, include the UnigineBlob.h file.

Unigine::Blob Class

Members


static Ptr< Blob > create (size_t size)

Blob constructor.

Arguments

  • size_t size - Size of the blob in bytes.

static Ptr< Blob > create (const StreamPtr & stream)

Blob constructor.

Arguments

  • const StreamPtr & stream - Stream smart pointer.

virtual void resize (size_t size) const =0

Allocates the required memory and resizes the blob.

Arguments

  • size_t size - Size of the blob in bytes.

virtual void allocate (size_t size) const =0

Allocates the required memory without resizing the blob. It will be resized dynamically when the allocated memory is filled.

Arguments

  • size_t size - Size of the allocated memory in bytes.

virtual void reserve (size_t size) const =0

Reserves the blob, i.e. allocates (size * 1.5) bytes without resizing the blob. It will be resized dynamically when the allocated memory is filled.

Arguments

  • size_t size - Size of the allocated memory.

virtual void clear () const =0

Clears the blob size to 0.

virtual size_t getSize () const =0

Returns the current blob size.

Return value

Blob size.

virtual unsigned char * getData () const =0

Returns the current blob data.

Return value

Blob data.

virtual int eof () const =0

Tests if the end of the blob has been reached.

Return value

Returns 1 if the end of the blob is reached; otherwise, 0.

virtual int getc () const =0

Gets a next symbol from the blob.

Return value

Character read from the blob.

virtual int seekSet (size_t offset) const =0

Seeks to position relative to the start of the blob.

Arguments

  • size_t offset - Offset in bytes from the beginning of the blob.

Return value

Returns 1 if the blob position indicator is set successfully; otherwise, 0.

virtual int seekEnd (size_t offset) const =0

Seeks to position relative to the end of the blob.

Arguments

  • size_t offset - Offset in bytes from the end of the blob.

Return value

Returns 1 if the blob position indicator is set successfully; otherwise, 0.

virtual int seekCur (size_t offset) const =0

Seeks to position relative to the current offset.

Arguments

  • size_t offset - Offset in bytes from the current position of indicator.

Return value

Returns 1 if the blob position indicator is set successfully; otherwise, 0.

virtual size_t tell () const =0

Gets the current blob offset position indicator.

Return value

Returns the current blob offset.

virtual int flush () const =0

Flushes the blob.

Return value

Returns 1 if the blob is flushed successfully; otherwise, 0.

virtual int decode (const char * src) const =0

Decodes a base64 encoded string into the blob.

Arguments

  • const char * src - Source base64 encoded string.

Return value

Returns 1 if the data is decoded successfully; otherwise, 0.

virtual String encode () const =0

Encodes the blob into the base64 encoded string.

Return value

Base64 encoded string.

virtual int compress (const StreamPtr & dest, int quality) const =0

Compresses the blob and writes it into the given stream.

Arguments

  • const StreamPtr & dest - Destination stream.
  • int quality - Compression quality (0 is for fast compression, 1 is for a small size).

Return value

Returns 1 if the data is compressed successfully; otherwise, 0.

virtual int decompress (const StreamPtr & src) const =0

Reads the compressed blob from a stream and decompresses it.

Arguments

  • const StreamPtr & src - Source stream to read data from.

Return value

Returns 1 if the blob is decompressed successfully; otherwise, 0.

virtual String getSHA1 () const =0

Returns the 160-bit SHA1 checksum.

Return value

The 160-bit SHA1 checksum.

virtual String getMD5 () const =0

Returns the 128-bit MD5 checksum.

Return value

The 128-bit MD5 checksum.

virtual String getCRC32 () const =0

Returns the 32-bit CRC checksum.

Return value

The 32-bit CRC checksum.
Last update: 03.07.2017
Build: ()