Font rendering bug (SOLVED)

nikohal

I have some font rendering bug with Qt 5.3.1 on Android device. All texts are messy when Qt Quick Controls are used (Button, Label etc.).
!http://qt.hallikainen.cc/WP_20140801_005.jpg(picture)!

Any ideas how to fix?

Regards, Niko H.

coursar

What device you're using? It's may be known bug on some gpu with qml text element. "View the link...":https://bugreports.qt-project.org/browse/QTBUG-33951. I know bug exists on huawei honor 3, but didn't have device for testing and fix it.

nikohal

I use HTC Desiere HD

Regards, Niko

coursar

Detect your gpu identification string as shown in bug report and recompile qt.

nikohal

How I can find GPU identification string?

coursar

In
src/plugins/platforms/android/qandroidplatformopenglcontext.cpp
add QDebug header.

Then find function bool QAndroidPlatformOpenGLContext::needsFBOReadBackWorkaroud()
and just qDebug() << rendererString in appropriate place. Recompile Qt. When you run your app you can see it from app output in qt creator or in android monitor.

coursar

If it helps you, please share rendererString

nikohal

Yes, I'll send rendererString but now I have problem with compiling Qt.
I get error this error.
!http://qt.hallikainen.cc/Sieppaa2.png!
I have installed android apis 10, 11, 16.

nikohal

Path is:
export JAVA_HOME=/usr/lib/jvm/java-8-oracle/bin/

export ANDROID_SDK_ROOT=/home/nikohal/qt5/qt5/adt-bundle-linux-x86-20140702/sdk

export ANDROID_API_VERSION=android-10

Configure:

./configure -xplatform android-g++ -nomake tests -nomake examples -android-ndk /home/nikohal/qt5/qt5/android-ndk-r10 -android-sdk /home/nikohal/qt5/qt5/adb-bundle-linux-x68-20140702/sdk -android-ndk-host linux-x86 -android-toolchain-version 4.9 -skip qttranslations -skip qtwebkit -skip qtserialport -skip qtwebkit-examples -no-warnings-are-errors -no-dbus

p3c0

Hi,

The View.AccessibilityDelegate was introduced in Android Version 14.
See "here":http://developer.android.com/reference/android/view/View.AccessibilityDelegate.html. So as per this link you are supposed to compile it with Android SDK version >= 14.
Perosnally i tried it with Android-14 but i still got the same error. Later when i tried it with Android-19 it worked. So check with what Android SDK version works for you but definitely not with Android-10.

nikohal

D/Qt (10857): qandroidplatformopenglcontext.cpp:80 (static bool QAndroidPlatformOpenGLContext::needsFBOReadBackWorkaroud()): Adreno 205

nikohal

Problem solved, I add Adreno 205 to source, and it works :)
!http://qt.hallikainen.cc/DSC_9781.JPG!
Thankyou :)