Slick Forums

Hello,

I search to modify the contents of texture on the fly.

On this tread viewtopic.php?p=21196#p21196 ,Kappa talk about to fill the texture.
Someone can tell me how to get the buffer or the methode to modify the contents?
Is it possible to do that with Slick objet or should I change my texture object through GL?

Thanks a lot for your help.
Regards.
Axis.

In OpenGL this is called render-to-texture, in Slick we call it "image graphics". See here:
viewtopic.php?f=3&t=4537

Hello,

Thank davedes.
I read about on forum myImage.getGraphics() take a lot of time.
I want modify the texture directly to display video decoded by xuggler, i get a awt BufferedImage and i'd wish to transfer byte quickly.

Thanks
Regards.
Axis

Xuggler should decode the video into BGR24 format. Creating a BufferedImage is unecessary.

Since you are dealing with something that needs very high performance, you should avoid AWT and dive into OpenGL a little more:

• Create a single video player texture that matches the pixel format Xuggler will be using
• When a new video frame is decoded, get the RGB data from Xuggler
• Update the video player texture with the new RGB data with glTexSubImage2D

Problem is, you can't ensure that glTexSubImage2D will place textures in memory at the exact necessary time. You might have more control over this with FBO/PBO.

This is beyond the scope of slick; and it is a fair bit of work if you don't know much about Xuggler or OpenGL. Good luck.

Thanks davedes.
Regards