transferring Images using lua-Enet.

[ArchAngel075]

Ive been struggling to figure out how to convert an image into a form of data that can be set over a network and then re-converted back into a image format for use in games.

Is it possible to even do this and how? As the imageData:getString() makes sense for this purpose but I see no way of converting the string back into an image...

[bekey]

-snip-

[markgo]

Do this to the string: https://love2d.org/wiki/love.filesystem.newFileData
Then this to the filedata: https://love2d.org/wiki/love.image.newImageData

[ArchAngel075]

Do this to the string: https://love2d.org/wiki/love.filesystem.newFileData
Then this to the filedata: https://love2d.org/wiki/love.image.newImageData

Attempted it with :

Code: Select all

function love.load()
 someImageData = love.image.newImageData("world.png")
 imageDataString = someImageData:getString()
 FileData = love.filesystem.newFileData( imageDataString, "world.png")
 nextImageData = love.image.newImageData(FileData)
 newImage = love.graphics.newImage( nextImageData )
end

function love.draw()
 lg.draw(newImage,1,1)
end

Got error :
Main.lua : 10
Could not decode image!

line 10 is : nextImageData = love.image.newImageData(FileData)

[markgo]

Oh sorry. I was just guessing. Hopefully a dev will chime in.

Edit: Why not load the image as a string and send it? You can also save your imagedata and load it as a string.

[ArchAngel075]

How exactly do you mean?

Im using a json encoder to package whatever i send accross my network.

Also im more keen on getting an image/sound file loaded, converted to string, then back to a image/sound file ready to be used... Since the string step lets me send it over networks without worrying about json complaining about userdata.

[markgo]

Try this: https://love2d.org/wiki/love.filesystem.read

You can have your image in raw data. Just send the string and do filedata -> imagedata. Like I said, you can also save your imagedata to a temporary file and reload it as a string.

[ArchAngel075]

Success!
That does indeed work, thank you good sir

Now i can also port to sound files and thus continue work on me InsanityEngine

[bartbes]

The problem you were experiencing with getString is that it returns raw image data, not encoded into any graphics format, so when you later try to load that as png it fails.

[bobbyjones]

Um could anyone explain how to do this