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Mobile and Embedded

The forum for developing everything embedded: Linux, WinCE, Symbian, MeeGo... you name it.
14.1k Topics 62.6k Posts
  • Android and ios camera support

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    mrdebugM
    I think not for now.
  • Qt with openGL|ES on ARM under Linux

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    SGaistS
    Hi and welcome to devnet, You should re-run the configuration process with -v so you'll be able to see why exactly the test fails. Hope it helps
  • Getting openGL error when attempting glEnable(GL_TEXTURE_2D); on ios

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    K
    I'm going to amend this. I did some further poking around and found someone say this: bq. In a modern core profile, there is no "fixed-function pipeline" (i.e. built-in shader generator). glEnable( GL_TEXTURE_2D) is a directive to the fixed-function pipeline's shader generator that you want to include code to support that texture unit. bq. Delete it. You're writing the shader so you decide directly which texture units you're going to reference. Just glActiveTexture to activate the right texture unit, glBindTexture, then glUniform1i to set the texture unit index on the appropriate sampler uniform. With that said, I still have GL errors down when I attempt to load the texture into the GPU on ios. This next piece of code is where I get the next error: @ m_oglTexture = new QOpenGLTexture(QOpenGLTexture::Target2D); ScopeGLCheck("GPUTextureOGL() allocate"); m_oglTexture->setData(_image->mirrored(), QOpenGLTexture::DontGenerateMipMaps); //(QOpenGLTexture::MipMapGeneration) !_generateMips); ScopeGLCheck("GPUTextureOGL() setData"); // <-ERROR IS HERE m_oglTexture->setMinificationFilter(QOpenGLTexture::LinearMipMapLinear); m_oglTexture->setMagnificationFilter(QOpenGLTexture::Linear); m_oglTexture->setWrapMode(QOpenGLTexture::DirectionS, QOpenGLTexture::Repeat); m_oglTexture->setWrapMode(QOpenGLTexture::DirectionT, QOpenGLTexture::Repeat); m_valid = true;@
  • Building Qt 5.4 beta for new board

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    J
    It is not public yet - everything is under NDA. But thanks for the advice. Will do that.
  • Sample program hellotr.pro cannot build and run. Why? (Solved)

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    H
    https://www.youtube.com/watch?v=V9Gep6-r8ns Attach is the youtube on how translation can be done in Qt
  • Multiple copy of the same picture in ui (Solved)

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    H
    No... Do i set this variable on the right hand side main window properties? I try tomorrow. Thanks you very much, i was pulling my hair. I have same categories of problem in other threads, please help me too.
  • Export control status

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    C
    Thank you SGaist for your reply. I work for a company that makes software. This software may be distributed in several countries. So, before deciding to use any open source software in our developments, we have to analyse what we are allowed to do. As you suggest, I have just redirected the question to Digia Contact form, and I'll let you know here, just in case someone be interested. ;-)
  • Cross-Compile on Banana Pi

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    S
    Well, I don't find any rootfs for the BananaPi. In particular, for the Bananian Linux which is a debian based image. Do you have any suggestions where I can get those since the "Linaro Releases":https://releases.linaro.org/ site doesn't provide it?
  • Please Help: "response passed but not finished" in Apache error log

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    S
    I resolved this issue by adding the destructors to all the classes where QT objects were being instantiated by the constructors.
  • Android qcamera 5.4 beta

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    V
    [quote author="SGaist" date="1414105456"]What library will you use for your processing ?[/quote] I use "Population library ":http://www.population-image.fr/wordpress/ It is an open-source library and a good alternative of OpenCV. I cross my fingers for the release of QT 5.4 to have QWidget to access camera.
  • Rotating screen in Qt5.2.1

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    U
    See this thread: "Qt 5 embedded screen rotation":http://qt-project.org/forums/viewthread/23393
  • 0 Votes
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    SGaistS
    Patch got in, so you'll be fine when 5.4 RC comes out
  • Qt 5.3.2 QRadioTuner: radio example failed to detect radio at /dev/radio0

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    SGaistS
    Hi, AFAIK, the device is hardcoded to /dev/radio0. Since you're already building Qt, you can edit the v4lradiocontrol.cpp file to modify this value
  • Qt Camera example doesn't work on Android

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    P
    So what is the difference between the Widget camera example and the declarative-camera example? I've tried both v5.3 (?) and on a nexus7 the later works fine. Is it a widget vs qml thing? Is there a work around for using the qml code that works in conjunction with a widget based app?
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    SGaistS
    Hi, Please stop re-posting almost same questions. This subject is already being talked about "here":http://qt-project.org/forums/viewthread/48844/ Closing this one.
  • Qt 5.4 Beta, Windows Phone 8.1, White Screen

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  • 0 Votes
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    M
    geiliality! [quote author="ZeAL0T" date="1385616053"][quote author="strahlex" date="1385567834"]Have you solved the problem? I get the same result on Linux.[/quote] For windows issue I've just copied qmake binary file from existing Qt MinGW distribution. So all Qt binaries was builded fine except qmake. Under Linux I haven't got this problem. Here is my configuration script for Linux: @./configure -opensource -confirm-license -prefix $PWD/qtbase -developer-build -xplatform android-g++ -nomake tests -nomake examples -android-ndk $PWD/../android-ndk-r9 -android-sdk $PWD/../android-sdk-linux -android-ndk-host linux-x86_64 -android-toolchain-version 4.8 -skip qttranslations -skip qtwebkit -skip qtserialport -skip qtwebkit-examples -DQT_COORD_TYPE=double@ And this is the build script: @export ANDROID_BUILD_TOOLS_REVISION=18.1.1 make -jgrep -c ^processor /proc/cpuinfo make module-qtsvg-all -jgrep -c ^processor /proc/cpuinfo make module-qtscripttools-all -jgrep -c ^processor /proc/cpuinfo@ Note that -jgrep -c ^processor /proc/cpuinfo just sets the number of build threads you can omit it.[/quote]
  • Font size out of control on Arm9, Linux 2.6, Qt5.3.2 QtWidgets

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  • [SOLVED] Qt 5.4 beta on iOS - low pixmap quality

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    F
    Hi, It works! Thanks for your help! Just two hints in case anyone reads that Use setDevicePixelRatio after loading pixmap to QPixmap Update your app layout with size=pixmap.size()/pixelRatio Cheers Marek
  • Qt Everywhere 5.3.2 embedded LCD 480x272 and system dialogs

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