android: sdl2: some textures dont show

[hannescam]

the code is attached to the issue
bird.txt
its a cpp file renamed to txt because of github

please help thankyou

[hannescam]

i found out that with a newer phone (android 10 from samsung) it worked while with the older it didnt (android 7 from zte)

[AntTheAlchemist]

My guess is hardware texture size limit. What are the pixel resolutions of your textures? A safe maximum is under 2048 x 2048

[hannescam]

thankyou but i have a texture that is 10x4000 that renders fine and i tested it on android 12 and the same symtomps as on 8.1 but on 10 it works flawless i will upload all images (all of the were drawn by a friend of mine and they are ok with me publishing them) and i put in the code a function that displays a error when the loading of a surface/texture fails but it didnt trigger
the pipe is the 10x4000 and on android 12 the back and bad dont display but on android 8.1 back and coin dont display

[AntTheAlchemist]

Which version of SDL2 are you using exactly? There was a bug with OpenGLES that has been fixed. It would result in a black screen. Can you draw anything? Did you try and draw a line or box with the drawing functions?

[hannescam]

it renders evreything ecxept a few textures that i listed in the comment and i am using the sdl2-2.26.0 if you want i will upload the apk file

[AntTheAlchemist]

It has to be the texture size limit then. That's the only thing I can think of that differs between the android devices you're testing on.

[AntTheAlchemist]

Some devices have a limit of 1024 x 1024 maybe?

[hannescam]

maybe or the complete file size matters and the devices are: android 12 = galaxy a31, android 10 = galaxy a6, android 8.1 = zte blade a530 and android 11 = fairphone 4 5g the fairphone also does the same like the galaxy a31

[hannescam]

i tried it with extremley scaled down versions of the problematic sprites on the old zte blade a530 under 512x512 i will try to draw a line or a box to the affected texture

[hannescam]

i cant find out how i can draw a line to a texture so i wont test that

[AntTheAlchemist]

Disregard drawing a line/box - that was in relation to the SDL2 bug that was fixed, to see if you're getting a black screen. It could be a problem with SDL_Image or the PNG. I've never used SDL_Image though, I prefer lodepng.

[hannescam]

i tried to replace the png file with another known working and that didnt help maybe i give lodepng a try tomorow but only 2 out of 5 textures doesnt work

[hannescam]

with lodepng the problem still exists please help further and the problem isnt only on the android phones its also on my desktop pc thats running archlinux with gnome under xorg


the background should be a nice painting and on my tower pc there is only the background missing but on my way less powerfull laptop evreything works fine with the same os and code compiler and the code and the artwork is now on github: https://github.com/hannescam/F-Bird

[slouken]

Try this background?