“Smooth is not supported by this hardware (or driver)” with Nexus 4, Android 4.2.2

[benfry]

Original post: https://github.com/processing/processing/issues/1733

[emnullfuenf]

Crashes on Nexus 4 in P3D mode. The problem does not occur on Nexus 7.

[DanielFidalgo]

same here, Smooth is not supported by this hardware (or driver) on a Galaxy note 2 Android 4.1.1 from a win 8 64x

[somaniac]

same error "Smooth is not supported by this hardware (or driver)" on Orange San Francisco (ZTE Blade) with Android 2.3.7

[dmierkin]

same on samsung galaxy s4 Android 4.2.2

[andyli]

Same here on Sony Xperia S running Android 4.0.4.

[gersanchez]

:( the same thing with me!! pantech P9070 running in Android 4.1.2

[gtrianta]

Same here (Samsung Galaxy Core with Android 4.1.2).

[Doppelherz]

Same here ( Nexus 7 2013 with Android 4.4 )

[RockZou]

Same problem for Nexus 5 with Android 4.4.2

[Dart00]

Same problem Samsung Galaxy Mega :(

[mark-orion]

Same problem Samsung Galaxy S3 mini

[codeanticode]

Hey guys, I added some code to the config chooser to be able to create multisampled surfaces in this commit https://github.com/processing/processing-android/commit/fbb90b81227b894d6600691e9cf5b5cf9e5ee6f7, following this example from GDC 2011, but still didn't manage to make it work. On a Nexus 5 the multisampled context is created, but the graphics look all distorted. I will back to this, but now I need to work on something else. In the meantime, any suggestions are welcome!

[ZachSundberg]

Same problem Samsung Galaxy Tab 4.1.2. Did some digging and it looks like the problem may lie with how OpenGL-ES handles the 'smooth' qualifier: "The smooth qualifier is used to control interpolation between shader stages, GLSL ES does not support this, all vertex shader outputs are smoothly interpolated in GLSL ES." From answer 1 here: http://stackoverflow.com/questions/19802046/opengl-shadar-language-in-android

The error is being thrown form PGraphicsOpenGL.java here: @Override public void smooth() { if (quality < 2) { smooth(2); } else { smooth(quality); } }

@Override public void smooth(int level) { if (smoothDisabled) return;

smooth = true;

if (maxSamples < level) {
  if (0 < maxSamples) {
    PGraphics.showWarning(UNSUPPORTED_SMOOTH_LEVEL_ERROR, level, maxSamples);
  } else{
    PGraphics.showWarning(UNSUPPORTED_SMOOTH_ERROR);
  }
  level = maxSamples;
}

Update: Looks like the Android version may not be related to this problem at all. I tested it on a Samsung Galaxy Note running the same version of Android 4.1.2. It throws the same warning, but does not crash. When the app boots, it is clearly anti-aliasing. After the same error on a Tab 4.1.2 (the phone version) the app "white screens" and crashes. After arranging tests on a variety of devices I have come to the conclusion that the crash is occurring on small screen devices but not tablets: Samsung Galaxy S III Mini: error and crash Samsung galaxy s4 mini: error and crash Droid Maxx, Android version 4.4: error and crash SCH-R720 |ANDROID 2.3.4: error and crash Samsung Galaxy Tab 4.1.2: error and crash Samsung Galaxy Note 4.1.2: error no crash Samsung Galaxy S4: no error no crash Kindle Fire HD: no error no crash

Looking through the source it's my suspicion that the call to smooth which is occurring sets off a series of functions that leads to re-initializing the drawing surface (pgl.initSurface(quality);). On some hardware this causes a crash, on others it does not. Was there not a similar problem with PImage before?

Presuming that I am correct, the easiest way to prevent this is to allow access to: protected boolean smoothDisabled Setting this to false will dump out of the smooth(int quality) function before all of the above happens. It appears that smooth is depreciated in OPENGL-ES anyhow since quality 0 still produces at least bi-linear sampling.

Is anyone reading this?

[marsCubed]

It is not only phones this error is happening to.. Asus MeMo Pad 7 tablet ME173X_WW android 4.2 2 kernel 3.4.5 also reports same error in processing 2.1.1 and in the emulator too.

[merlestn]

I got the same problem on Nexus 7... Someone found a solution?

[NathanHartkopf]

Why has this been open for a year? Am I missing an answer somewhere in here?

[rhwillms]

It seems no one has decided to fix this serious problem. I'd like to write apps for my Nexus 7 using processing, however this is a serious impediment.

Don't any of the developers have any suggestions?

[RockZou]

Same problem here for almost a year. Still waiting for a solution. Please have a look at this bug or please someone post a different solution. Thank you very much!

[codeanticode]

Hi, I did some tests a few months ago, but was not able to fix the issue (see my previous comments from March), and since then I haven't had time to work on the android mode. My plan is to look into this again in the coming days/weeks, as we are doing some android development through Google Summer of Code.