I'm not sure if I understand you correctly when exactly you set the format. It sounds too me as if you're setting it "too late", after the OpenGL ES context has been created.
What I do is setting the format in the Activity's onCreate method on the UI thread before the OpenGL context is initialized and before a renderer has been set. Maybe your setFormat call is postponed in a way so you lose the OpenGL context and it forces a re-creation? I guess it just works for you on different devices because your call to setFormat does not actually change the format, so nothing happens. Your older 2.2 Android device may have a different default format for the surface view (such as RGB565) compared to newer devices. On Friday, August 23, 2013 1:11:57 PM UTC-5, latimerius wrote: > > In a testing program I'm playing with currently, I want to use setFormat() > to adapt the pixel format of my surface to the chosen EGL config before I > pass the surface holder to eglCreateWindowSurface(). > > Now, I call EGL from my render thread and I know SurfaceHolder.setFormat() > is documented to have to be "called from the same thread running the > SurfaceView's window", which I take to be the main thread. To comply, I > wrap my setFormat() call in a Runnable which I pass to runOnUiThread() and > wait() until it's actually executed. > > This works perfectly on some devices, however it gives me intermittent > failures on Optimus One (with Android 2.2) - on program start-up, three > times out of four the screen is just black. Even if start-up goes right, > the first configuration change makes the screen go black. The program > still runs and no GL or EGL calls signal any errors. > > Here's the weirdest part - if I omit the runOnUiThread() stuff and simply > call setFormat() from my render thread, it fixes the problem and the > program runs 100% solid on Optimus no matter much beating I give it - > randomly pressing Home and Back while rotating the device wildly, putting > it to sleep and waking it back up, the renderer always handles the native > window changes correctly and renders just fine. > > I'm at a loss, does anyone have an explanation? > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
