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libhybris would still exist if Android had been running glibc. You still have architecture-specific stuff at the end of the day. Just like how XWayland exists t

libhybris would still exist if Android had been running glibc. You still have architecture-specific stuff at the end of the day. Just like how XWayland exists to map X11 to Wayland, even though both use the same glibc. Looking through the source of libhybris it looks like very little of it has anything to do with bionic itself.

shmerl 9y ago
I thought its whole point is to work around idiosyncrasies of bionic, and translate it into glibc proper. Or you mean that Android drivers architecture is very different from proper Linux drivers?
- kllrnohj 9y ago
  bionic is largely just a subset of glibc. There's not really any idiosyncrasies to workaround going from bionic to glibc (the hard part is the reverse as people commonly use non-portable glibc extensions) libhybris is more things like converting Surfaceflinger calls into Wayland ones. Looks like there's some media, camera, and input stuff, too, which is all outside the realm of bionic/glibc.
- pjmlp 9y ago
  Yes completely different. This how the graphics stack look like on Android, a mix of Java, C and C++ code. https://source.android.com/devices/graphics/ https://source.android.com/devices/graphics/ https://source.android.com/devices/graphics/architecture https://source.android.com/devices/graphics/architecture
  - shmerl 9y ago
    Android can use Mesa, so that's not convincing.
    - pjmlp 9y ago
      No Android handset is being sold with Mesa instead of SurfaceFlinger. Can you please prove me wrong?
      - shmerl 9y ago
        SurfaceFlinger is a compositor. Mesa is lower level. Search yourself (Android with Mesa).
        pjmlp 9y ago
        Which means you cannot answer my question.
        shmerl 9y ago
        Which means you don't know what you are talking about. Did you search what I said? It's not the first time you do it for the sake of flaming.
        pjmlp 9y ago
        The FOSS religion days are well behind me for worrying about flame wars. The very fact that you cannot prove me wrong, tells it all. Given that I also work with Android, are you so naive to think I need to search for whatever you want me to find?!? Sure there is Mesa on the emulator, which is deprecated by the way. Oh and in those Intel devices that are no longer being sold.
      - kllrnohj 9y ago
        Mesa and SurfaceFlinger do two completely different things. You can absolutely use Mesa on Android (the emulator does, for example). But just like on desktop you're typically using the GPU vendors' accelerated GL implementation instead of Mesa. But if the vendors driver uses Mesa, like the Intel GPUs, that still works fine on Android.
        pjmlp 9y ago

shmerl 9y ago

I thought its whole point is to work around idiosyncrasies of bionic, and translate it into glibc proper. Or you mean that Android drivers architecture is very different from proper Linux drivers?

kllrnohj 9y ago
bionic is largely just a subset of glibc. There's not really any idiosyncrasies to workaround going from bionic to glibc (the hard part is the reverse as people commonly use non-portable glibc extensions) libhybris is more things like converting Surfaceflinger calls into Wayland ones. Looks like there's some media, camera, and input stuff, too, which is all outside the realm of bionic/glibc.
pjmlp 9y ago
Yes completely different. This how the graphics stack look like on Android, a mix of Java, C and C++ code. https://source.android.com/devices/graphics/ https://source.android.com/devices/graphics/ https://source.android.com/devices/graphics/architecture https://source.android.com/devices/graphics/architecture
- shmerl 9y ago
  Android can use Mesa, so that's not convincing.
  - pjmlp 9y ago
    No Android handset is being sold with Mesa instead of SurfaceFlinger. Can you please prove me wrong?
    - shmerl 9y ago
      SurfaceFlinger is a compositor. Mesa is lower level. Search yourself (Android with Mesa).
      - pjmlp 9y ago
        Which means you cannot answer my question.
        shmerl 9y ago
        Which means you don't know what you are talking about. Did you search what I said? It's not the first time you do it for the sake of flaming.
        pjmlp 9y ago
        The FOSS religion days are well behind me for worrying about flame wars. The very fact that you cannot prove me wrong, tells it all. Given that I also work with Android, are you so naive to think I need to search for whatever you want me to find?!? Sure there is Mesa on the emulator, which is deprecated by the way. Oh and in those Intel devices that are no longer being sold.
    - kllrnohj 9y ago
      Mesa and SurfaceFlinger do two completely different things. You can absolutely use Mesa on Android (the emulator does, for example). But just like on desktop you're typically using the GPU vendors' accelerated GL implementation instead of Mesa. But if the vendors driver uses Mesa, like the Intel GPUs, that still works fine on Android.
      - pjmlp 9y ago