Performance drop after rotating screen

arm
#1

Hi!
First thing I done was adding

ofDrawBitmapString(ofToString(ofGetFrameRate())+"fps", 10, 15);

to quaternionLatLongExample, then compile and run it. I get solid 30fps since this code is limited with

ofSetFrameRate(30);

so everything works as expected.
But after adding

display_rotate=3

to /boot/config.txt I get max 19fps. Example like 3DPrimitivesExample is getting max 14fps.
Is this OF bug, system issue or what?

RaspberryPi1 B 512, CPU at 800Mhz, 128 to GPU, minibian, fullHD.

#2

Everything points to the fact that RPi is getting laggy when screen is rotated 90 or 270 degrees. Changing resolution to lower makes it better.

#3

And what happens when you use ofRotate(90); and work like this ?

#4

OF also has a way to rotate the screen for installations… just call ofSetOrientation(OF_ORIENTATION_90_LEFT) and it’ll rotate the screen. you can also use OF_ORIENTATION_90_RIGHT and OF_ORIENTATION_180

2 Likes
#5

Will system and app orientations be both the same if I use ofRotate(90); ?

#6

Did you tried this : Performance drop after rotating screen ?

#7

Tried and, as I suspected, this rotates only my project.
Performance is OK, but system is in horizontal, project is in vertical.

#8

And do you need access to the system ?