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Bug 726412 - use glMapBuffer and friends
use glMapBuffer and friends
Status: RESOLVED OBSOLETE
Product: GStreamer
Classification: Platform
Component: gst-plugins-base
git master
Other All
: Normal enhancement
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2014-03-15 13:31 UTC by Matthew Waters (ystreet00)
Modified: 2018-11-03 11:29 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Matthew Waters (ystreet00) 2014-03-15 13:31:34 UTC 
This allows the possiblity for the GL implementation to give us a pointer to GPU memory that we can write to.
Comment 1 Julien Isorce 2014-05-29 09:55:46 UTC 
Could you elaborate if this is still relevant ? Thx!
Comment 2 Matthew Waters (ystreet00) 2014-05-29 09:59:14 UTC 
Yes, this still relevant.  Instead of having a temporary data pointer inside GstGLMemory, we could simply use the GPU mappable buffer as a data pointer that we can then TexImage2d with.  The other optimisation this makes easier is async upload/downloads.
Comment 3 Matthew Waters (ystreet00) 2015-07-07 08:36:36 UTC 
Current status is that this requires explicit outside knowledge that the memory is not going to be mapped in both system memory and GL memory at the same time in order use the glMapBuffer()ed pointer.  As a result it must be an opt-in flag on glbasebuffer for limited use cases.
Comment 4 GStreamer system administrator 2018-11-03 11:29:15 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/issues/114.