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Power GIF
By Hippo Games
Welcome! Hope you will enjoy working with my asset!

About
PowerGif was created for my pixel art editor Pixel Studio. This asset is a wrapper for Unity over my
library SimpleGif that is available on GifHub. So please do not confuse with PowerGif and SimpleGif as
they both have public Gif class =)
There are 3 levels of usage difficulty:
1. SIMPLE. Simple decode/encode operations. Simple call, simple result. But Unity may freeze on
large files.
2. ADVANCED. Encoding/decoding with iterators allowing you to display a progress bar. It’s
recommended for large files.
3. REACTIVE. Parallel encoding/decoding with threads allow you to greatly speed up a
performance. As far as I know, no other plugins offer this feature.

Features
-

Decoding GIF
Encoding GIF
Encoding/decoding iterators for displaying progress bar
Parallel encoding/decoding with threads
Converting True Color images to 8 bits with master palettes
Clean and simple C# code
Unity 5, 2017, 2018 support
Any platform (Standalone, Android, iOS, WebGL)

Example Scenes
-

DecodeExample
DecodeProgressExample
DecodeParallelExample
EncodeExample
EncodeProgressExample
EncodeParallel
PerformanceExample
PreviewExample

Usage
-

var gif = Gif.Decode(byte[] bytes); will load GIF from binary
var gif = new Gif(List frames); will create GIF from image list
gif.Encode(); will return binary ready to be displayed or written on disk
gif.Frames contains frame list
each frame has Texture (Texture2D) and Delay (float)

Advanced usage
-

-

var count = Gif.GetDecodeIteratorSize(bytes); will return DecodeIterator size so you can display
progress bar for large files
var iterator = Gif.DecodeIterator(bytes); will return iterator so you can display progress bar for
large files
var count = gif.GetEncodeIteratorSize(); will return EncodeIterator size so you can display
progress bar for large files (it always returns frame count + 2)
var iterator = gif.EncodeIterator(); will return iterator so you can display progress bar for large
files (first part is first frame, penultimate part is GIF header with global color table, last part is
GIF trailer)
you can break iterator to get fist GIF-frame for preview

Parallel encoding and decoding
-

Please refer to DecodeProgressExample and EncodeProgressExample

Converting True Color to 8 bits
-

As GIF format supports only up to 256 different colors per frame, you may need to convert True
Color images to 8 bits
You can read about RGB arrangements here:
https://en.wikipedia.org/wiki/List_of_software_palettes#RGB_arrangements
Power GIF does not support adaptive palettes now!
Power GIF can convert True Color images to the following palettes: 6 level RGB, 6-7-6 levels
RGB, 6-8-5 levels RGB, 8-8-4 levels RGB and Graystyle (256 shades of grey)
To perform image conversion to 8 bits simply use gif.Encode(MasterPalette palette) and
gif.EncodeIterator(MasterPalette palette)
For parallel encoding use simpleGif.ApplyPalette(MasterPalette)
You can also apply master palette to each SimpleGif.GifFrame

Performance notes
-

Switch to .NET 4.0 to speed up parallel operations

Support
-

https://github.com/hippogamesunity/SimpleGif
hippogamesunity@gmail.com
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Page Count                      : 2
Language                        : ru-RU
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Author                          : Пользователь Windows
Creator                         : Microsoft® Word 2016
Create Date                     : 2018:07:11 19:19:22+03:00
Modify Date                     : 2018:07:11 19:19:22+03:00
Producer                        : Microsoft® Word 2016
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