This page has been translated automatically.
视频教程
界面
要领
高级
实用建议
专业(SIM)
UnigineEditor
界面概述
资产工作流程
设置和首选项
项目开发
调整节点参数
Setting Up Materials
设置属性
照明
Sandworm
使用编辑器工具执行特定任务
如何擴展編輯器功能
嵌入式节点类型
Nodes
Objects
Effects
Decals
光源
Geodetics
World Nodes
Sound Objects
Pathfinding Objects
Players
编程
基本原理
搭建开发环境
使用范例
C++
C#
UnigineScript
UUSL (Unified UNIGINE Shader Language)
Plugins
File Formats
Materials and Shaders
Rebuilding the Engine Tools
GUI
双精度坐标
应用程序接口
Containers
Controls-Related Classes
Engine-Related Classes
Filesystem Functionality
GUI-Related Classes
Math Functionality
Node-Related Classes
Objects-Related Classes
Networking Functionality
Pathfinding-Related Classes
Physics-Related Classes
Plugins-Related Classes
IG Plugin
CIGIConnector Plugin
Rendering-Related Classes
创建内容
内容优化
Materials
Material Nodes Library
Miscellaneous
Input
Math
Matrix
Textures
Art Samples
Tutorials

Unigine::Compress Class

Header: #include <UnigineCompress.h>

Compress class is used to compress and decompress data using the following algorithms:

  • Jackalless — recommended. UNIGINE compression method optimized for compressing 2D and 3D textures. It provides better results than LZ4 and Zlib without deteriorating the quality.
  • LZ4 — temporary option, planned to be removed in the upcoming releases.
  • Zlib — for high compression ratio (can provide up to 2 times higher compression ratio, but takes up to 20 times longer).

Compress Class

Members


bool zlibCompress ( void* dest, size_t& dest_size, const void* src, size_t src_size, bool quality ) #

Compresses the source data using the Zlib algorithm with the specified compression level and puts the result to the specified destination.

Arguments

  • void* dest - Destination buffer pointer.
  • size_t& dest_size - Destination data size.
  • const void* src - Source buffer pointer.
  • size_t src_size - Source data size.
  • bool quality - Compression quality; false is for faster compression, true is for higher compression (less size).

Return value

true if the operation was successful; otherwise, false.

bool zlibDecompress ( void* dest, size_t dest_size, const void* src, size_t src_size ) #

Decompresses the source data using the Zlib algorithm and puts the result to the specified destination.

Arguments

  • void* dest - Destination buffer pointer.
  • size_t dest_size - Destination data size.
  • const void* src - Source buffer pointer.
  • size_t src_size - Source data size.

Return value

true if the operation was successful; otherwise, false.

size_t zlibSize ( size_t size ) #

Returns the maximum Zlib-compressed data size for the specified uncompressed size value.

Arguments

  • size_t size - Uncompressed data size.

Return value

Maximum Zlib-compressed data size.

size_t lz4Size ( size_t size ) #

Returns the maximum LZ4-compressed data size for the specified uncompressed size value.

Arguments

  • size_t size - Uncompressed data size.

Return value

Maximum lz4-compressed data size.

bool lz4Compress ( void* dest, size_t& dest_size, const void* src, size_t src_size, bool quality ) #

Compresses the source data using the LZ4 algorithm with the specified compression level and puts the result to the specified destination.

Arguments

  • void* dest - Destination buffer pointer.
  • size_t& dest_size - Destination data size.
  • const void* src - Source buffer pointer.
  • size_t src_size - Source data size.
  • bool quality - Compression quality; false is for faster compression, true is for higher compression (less size).

Return value

true if the operation was successful; otherwise, false.

bool lz4Decompress ( void* dest, size_t dest_size, const void* src, size_t src_size ) #

Decompresses the source data using the LZ4 algorithm and puts the result to the specified destination.

Arguments

  • void* dest - Destination buffer pointer.
  • size_t dest_size - Destination data size.
  • const void* src - Source buffer pointer.
  • size_t src_size - Source data size.

Return value

true if the operation was successful; otherwise, false.

size_t jackallessSize ( size_t size ) #

Returns the maximum size of data compressed using jackalless method for the specified uncompressed size value.

Arguments

  • size_t size - Uncompressed data size.

Return value

Maximum size of data compressed using jackalless method.

bool jackallessCompress ( void* dest, size_t& dest_size, const void* src, size_t src_size ) #

Compresses the source data using jackalless method and puts the result to the specified destination.

Arguments

  • void* dest - Destination buffer pointer.
  • size_t& dest_size - Destination data size.
  • const void* src - Source buffer pointer.
  • size_t src_size - Source data size.

Return value

true if the operation was successful; otherwise, false.

bool jackallessDecompress ( void* dest, const void* src ) #

Decompresses the source data using jackalless method and puts the result to the specified destination.

Arguments

  • void* dest - Destination buffer pointer.
  • const void* src - Source buffer pointer.

Return value

true if the operation was successful; otherwise, false.

bool jackallessCompressFloat ( void* dest, size_t& dest_size, const float* src, size_t src_length ) #

Compresses the source data using jackalless method and puts the result to the specified destination.

Arguments

  • void* dest - Destination buffer pointer.
  • size_t& dest_size - Destination data size.
  • const float* src - Source buffer pointer.
  • size_t src_length - Source data length.

Return value

true if the operation was successful; otherwise, false.

bool jackallessDecompressFloat ( float* dest, size_t dest_length, const void* src ) #

Decompresses the source data using jackalless method and puts the result to the specified destination.

Arguments

  • float* dest - Destination buffer pointer.
  • size_t dest_length - Destination data length.
  • const void* src - Source buffer pointer.

Return value

true if the operation was successful; otherwise, false.

size_t jackallessRawSize ( void* compressed_data ) #

Returns the raw size of the compressed data.

Arguments

  • void* compressed_data - Compressed data pointer.

Return value

Raw data size.

size_t jackallessCompressedSize ( void* compressed_data ) #

Returns the compressed size of the compressed data.

Arguments

  • void* compressed_data - Compressed data pointer.

Return value

Compressed data size.
Last update: 2022-04-20
Build: ()