How to include libpng Native Android

How to include libpng Native Android

partyk1d24

Member #15,242

July 2013

I ran the following....

ccmake .. -DANDROID_NDK_TOOLCHAIN_ROOT=$TC -DWANT_ANDROID=on -DWANT_EXAMPLES=OFF -DWANT_DEMO=OFF -DCMAKE_BUILD_TYPE=Debug -DPNG_LIBRARY=/Users/me/Development/AOSP/external/libpng/libs/armeabi/libpng.so -DPNG_INCLUDE_DIR=/Users/me/Development/AOSP/external/libpng

But I see the following error message....

 CMake Warning:
   Manually-specified variables were not used by the project:

     PNG_INCLUDE_DIR

And when I try to run my application I still see..

I/allegro ( 1007): bitmap   W 1020:          bitmap_io.c:243  al_load_bitmap_flags             [   0.39546] No handler for bitmap extensions .png - therefore not trying to load loading_game_bg.png.
E/Tetris  ( 1007): Could not load loading game background bitmap.

Any help with what I am doing wrong?

Edgar Reynaldo

Major Reynaldo

May 2007

You can try the cmake mailing list. They might be able to help more. LibPNG is supposed to be one of the automatically supported and searched for libraries in cmake. There may be different variables you have to set to get Android to work right.

Eagle and Allegro 5 binaries | Older Allegro 4 and 5 binaries | Allegro 5 compile guide
King Piccolo will make it so Then I could just flip it with some sweet, sweet matrix math. In either case, I’ll ride this wagon until the wheels fall off. Thanks to those that keep it running

Trent Gamblin

Member #261

April 2000

Try adding -DWANT_NATIVE_IMAGE_LOADER=off to your cmake line.