Go to advanced search

by timg236
Thu Jan 03, 2019 10:25 am
Forum: Graphics programming
Topic: VCSM and the FBO
Replies: 1
Views: 1216

Re: VCSM and the FBO

You could use glScissor to restrict the size of the drawing / clearing region

https://www.khronos.org/registry/OpenGL ... cissor.xml
by timg236
Wed Sep 19, 2018 2:06 pm
Forum: OpenGLES
Topic: EGLImageKHR to OpenMax
Replies: 26
Views: 11720

Re: EGLImageKHR to OpenMax

vcsm_info.vcsm_handle is the memory handle for the pixel data and vcsm_buffer is the CPU pointer to the pixels. The pointer is obtained by this line of code vcsm_buffer = (unsigned char *) vcsm_lock_cache(vcsm_info.vcsm_handle, VCSM_CACHE_TYPE_HOST, &cache_type); EGL images in the driver are contain...
by timg236
Thu Aug 02, 2018 4:10 pm
Forum: Graphics, sound and multimedia
Topic: HAT soundcard driver tidyup on 4.18-y
Replies: 0
Views: 223

HAT soundcard driver tidyup on 4.18-y

Posting here as well as GitHub There are quite a few Pi HAT soundcards now which is great but this has resulted in a lot of duplicated driver code because most cards use one of a handful of codec chips. Since the HAT drivers aren't upstreamed they have to be updated when the ALSA APIs are updated. I...
by timg236
Thu Jul 19, 2018 11:38 am
Forum: Advanced users
Topic: Turn off command line storage
Replies: 4
Views: 348

Re: Turn off command line storage

You can disable the bash history with this command

Code: Select all

set +o history
See https://linuxconfig.org/how-to-disable- ... y-on-linux
by timg236
Tue Jul 17, 2018 9:52 am
Forum: General discussion
Topic: How to change the core file size of raspberry pi3
Replies: 16
Views: 633

Re: How to change the core file size of raspberry pi3

You can also use the lsof utility to view the files open by every process

sudo apt-get install lsof
sudo lsof
by timg236
Mon Jul 16, 2018 11:47 am
Forum: Arch
Topic: ArchLinux Arm display unusual colors
Replies: 2
Views: 7931

Re: ArchLinux Arm display unusual colors

Has the raspberry logo turned blue-ish ?

If so, you could try setting framebuffer_swap=1 in config.txt

Go to advanced search