Android native crash when decoding png images on some 6.0 devices

Question

Happens only in 6.0 devices, the stack trace is as follows. I'm scaling images down by setting BitmapFactory.Options.inSampleSize, so my code is scaling png files. What that be an issue?

backtrace:
    #00  pc 000000000002c7d8  /system/lib64/libpng.so (sub_filter_2bpp_neon64+136)
    #01  pc 0000000000012da4  /system/lib64/libpng.so (png_read_row+440)
    #02  pc 0000000000013048  /system/lib64/libpng.so (png_read_rows+96)
    #03  pc 000000000028c024  /system/lib64/libskia.so (_ZN17SkPNGImageDecoder8onDecodeEP8SkStreamP8SkBitmapN14SkImageDecoder4ModeE+1692)
    #04  pc 000000000027f70c  /system/lib64/libskia.so (_ZN14SkImageDecoder6decodeEP8SkStreamP8SkBitmap11SkColorTypeNS_4ModeE+152)
    #05  pc 00000000000f6140  /system/lib64/libandroid_runtime.so
    #06  pc 00000000000f6a78  /system/lib64/libandroid_runtime.so
    #07  pc 0000000003497668  /system/framework/arm64/boot.oat

probably it is important to know which devices it does crash on. Pls add some examples. — Vladyslav Matviienko, Apr 30 '18 at 05:33
Also add your code. You can't be sure that you are doing everything correctly from your side. — Vladyslav Matviienko, Apr 30 '18 at 05:33

krawa · Answer 1 · 2019-10-11T09:43:15.720

I got a Legacy project and after the first release some users started crashes. I spent three days searching. The problem was found very quickly when I got the problem device. As it turned out, I was looking at the wrong place because the project had many native libraries.

In my case, the problem was in the wrong PNG file in resources. This PNG was used for shadow in XML markup.

<View android:layout_width="fill_parent" 
      android:layout_height="8dp"
      android:background="@drawable/df_tab_bar_shadow"/>

The picture was 16-bit colors. I converted PNG to 32-bit colors and the problem is solved

Android native crash when decoding png images on some 6.0 devices

1 Answers1