Hi guys!
I'm working on a custom camera, I've already implemented a subdevice driver that works well. Now, I'd like to do some post processing on it. If I understood well, I should use openGL for that, so I configured the unicam driver to use DMA buffers, which works well, but I'm not sure how I'm supposed to use openGL with these buffers, As far as i understood, I'm supposed to copy the buffers content to an openGL image? But I would like, if possible, to just modify the DMA buffer, from openGL. (Then I'll have another app displaying it).
Can someone explain what's the process to follow? Or provide some tutorials that I may not have found ?
Thanks a lot!
PS : I'm on a RPI4
PS2 : I'm new to OpenGL!
I'm working on a custom camera, I've already implemented a subdevice driver that works well. Now, I'd like to do some post processing on it. If I understood well, I should use openGL for that, so I configured the unicam driver to use DMA buffers, which works well, but I'm not sure how I'm supposed to use openGL with these buffers, As far as i understood, I'm supposed to copy the buffers content to an openGL image? But I would like, if possible, to just modify the DMA buffer, from openGL. (Then I'll have another app displaying it).
Can someone explain what's the process to follow? Or provide some tutorials that I may not have found ?
Thanks a lot!
PS : I'm on a RPI4
PS2 : I'm new to OpenGL!
Statistics: Posted by f_cam — Mon Jul 07, 2025 9:21 am