Stefan Tabaranu wrote:
> I work in a project where I have to create lots of images on the fly, at
> this moment I use GDI from Microsoft, on the image I have to draw only
> some text, it's not something complicated, this GDI is a bit slow and I
> try to find new tehnologies to render my images. I try to find a way to
> use the gpu power and it seems that mesa has this off screen
> rendering. Also another solotion is with opengl and PBO to readback the
> pixels from GPU, my problem is that I get slow frame rates, about 54 FPS
> on a low end GPU GeForce 5200.
> How is the mesa off screen rendering performance compared with the openGL ?
At first glance, I'd expect your GeForce card to be faster than
Though, if you already have an image, and you're just drawing some
simple bitmap text over it, you might come out ahead with OSMesa since
you could directly render the text over the image and avoid the cost
of moving images to/from the graphics card.
BTW, I'm moving this message to the mesa3d-users list, the cvs list is
not for postings.