We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Hello everybody, I'm currently struggling with the said system.Is there somewhere a *full* sample code for Linux that does create an EGLImage for a texture and demonstrates how to update it with the CPU ?
Reference documentation seems ok but eglGetError keeps telling me I don't know what I'm doing
I won't post my various tries here because they don't work and therefore have no value for the reader, but I've been romaing the web and trying stuff for a while.
Cheers, Tramb
I'm not sure, I'll ask the system team but their first gut feeling is "I don't think so".
I still don't have the answer. We contacted our supplier, ie your partner, to get some answers.
When you're speaking about dma_buf vs UMP, you're thinking about the way to update device memory ?
Is there a way to query the driver to know how glTexImage2D does it ? I was thinking the upload was done through DMA, after the swizzling is done on the CPU, but EXT_image_dma_buf_import is not exposed.
UMP driver is usually built as a kernel module so if you look into your kernel whether its loaded or not. You will get an answer. I am actually trying to see if this technique mentioned How to share texture memory between CPU/GPU for firefly's/rk3288 fbdev Mali-T764 will work with UMP or not.
tramboi wrote:Is there a way to query the driver to know how glTexImage2D does it ?
tramboi wrote:
Is there a way to query the driver to know how glTexImage2D does it ?
I don't think so.