Installing newer gcc/g++ versions is easy: If your system does not provide the new versions, you might still be able to get them via a different repository. Add the toolchain repository to your system and update your sources: Now you should be able to install gcc/g++. The real problem comes after that. How to makeContinue reading “Installing and switching gcc/g++ versions in Debian”
Tag Archives: Raspberry Pi
Raspberry Pi setup / configuration stuff
I keep forgetting the stuff and always start over when I have to reformat or the SD card breaks, so here’s a collection of useful tidbits when setting up and configuring a Pi. I’ll expand this page whenever new stuff pops up… Adding a root password When you try to su, you can’t when noContinue reading “Raspberry Pi setup / configuration stuff”
Reading the OpenGL backbuffer to system memory
Sometimes you are in the need to read back the OpenGL backbuffer, or other framebuffers. In my case the question was how to read back a downsampled framebuffer resp. its texture to system memory. There are different methods for this and I wrote a small benchmark to test them on various systems. UPDATE #1: AContinue reading “Reading the OpenGL backbuffer to system memory”
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