[Stage3D]The ATF compress texture quality loss in some phone.

[Alex Maho]

Left picture is original. On the right is to use the ATF compress texture.

I used the command png2atf.exe -c e -q 0 -n 0,0 -r -4 -i "in.png" -o "out.atf"

The phone use android system 4.2.2 and CPU model is MT6592(GPU is "Mali 450 MP4").

[itlancer]

Try to use: png2atf.exe -c e -q 0 -n 0,0 -i "in.png" -o "out.atf"

[LiveMeteor]

I find the same problem, But my device is Samsung Note4 (CPU Exynos5433 GPU Mali-T760)

if I use the '-r' parameter, the texture is abnormal

remove the '-r' parameter, the texture is normal, but the ATF file is too large, difficult to download from game server.

so I want to have another method, use LZMA compress only, do not use JPEG-XR compress.

cheers.

[Alex Maho]

thank you for reply. how use LZMA compress only?

[LiveMeteor]

This is a good wish

[Guest]

it's really a big problem in our project

without -r , the atf ByteArray memory will be 10 times larger

I have a test on a 2048x2048 atf

use -c -r will takes about 6M gpu memory and  350K normal memory on ByteArray

use -c only, still 6M on gpu but 4M normal memory on ByteArray

if it's a bug on atftool hope abobe will fix it soon

or anyone could tell me a good way to use atf without memory waste

[Alex Maho]

so far has not been repaired.

[melkosofter]

Get this bug too, on Samsung devices that uses Mali GPU. Is there are any solution for this bug? Maybe ask Adobe add option "Disable XR JPEG" or use the alternate compession to png2atf tool? On Github i found sources for the dds2aft tool, and maybe Adobe can open their code of png2atf? It will be GREAT.

PS. I don't know if Adobe members reading this topics, so it will be nice if somebody know how to contact them.

[lint99311513]

Hi melkosofter,

I'd like to know which Samsung devices you are using? thx

[melkosofter]

Hi! I saw this bug on

Samsung Galaxy Alpha   

Samsung Galaxy Note 4  

Meizu mx4  

But there are devices which probably have the bug too

Samsung Galaxy S5 (octa-core) (exactly octa-core, not just s5)  

Samsung Galaxy S5 Neo  

Samsung Galaxy Tab S 10.5  

Samsung Galaxy Tab Pro 10.1  

Samsung Galaxy Note Pro 12.2

[lint99311513]

Thanks,

I have alike problem on

MT6752 (GPU=Mali T760)

MT6795 (Meizu mx4, GPU=IMG)

No problem on

Samsung note 3 (Qualcomm Snapdragon 800)

HTC butterfly (Qualcomm S4 Pro APQ8064)

MI pad (CPU=NVIDIA Tegra K1)

MI2S (Qualcomm Snapdragon 600)

[Alex Maho]

i find a solution.

don't use "-r -q and  -4".

just use -n 0,0(if you not used mipmap)  and -c e.

png2atf.exe -c e -n 0,0 -i "xxx.png" -o "xxx.atf"

ok. have a problem: the atf file will very big.

but you can use tool compression the ATF. The compression ratio is very high

when you loaded in memory get a ByteArray. use ByteArray.uncompress() method get the raw data.

upload to GPU will rapid.

when you uploaded to GPU, don't forget call ByteArray.clear();

[TheStalwart]

Issue still persists in AIR SDK 20.0.0.225

[TheStalwart]

Still reproducible on LG Nexus 5X after rebuilding ATFs with 20.0.0.233, setting app namespace to 20.0 and swf-version to 31

[TheStalwart]

Still reproducible with AIR SDK 21 Beta

[Alex Maho]

i really wish Adobe members fix the problem.

[TheStalwart]

I'm now waiting for the next beta to test - Bug#4041690 - ATF texture is corruption on MALI GPU platform

[TheStalwart]

The issue is still reproducible after rebuilding ATFs with 21.0.0.150, setting app namespace to 21.0 and swf-version to 32.

Device is LG Nexus 5X.

[TheStalwart]

Issue is still reproducible with AIR SDK 21.0.0.176 released today

[TheStalwart]

Issue is still reproducible with AIR SDK 22.0.0.89

[TheStalwart]

Issue is still reproducible with AIR SDK 22.0.0.149 released today

[TheStalwart]

Issue is still reproducible with AIR SDK 22.0.0.153 released last friday

[thechrisg]

I'd love to see this fixed.

[TheStalwart · Accepted solution]

Issue seems to be fixed in AIR SDK 23.0.0.215.

Tested on following devices:

LG Nexus 5X

Huawei G7 Plus

OPPO R7s

Samsung Galaxy S6

Samsung Galaxy Edge+

HTC One E9PLUS

[Alex Maho]

you are really good man.

Thank you keeping track of this topic.