blit_setup() ????

portgazzz

2015-10-12 10:09:02

if i use command 
./test -qws
blit_setup(): Screen depth 32 not supported! 
aborted


can someone to solve this problem ?

thanks

davef

2015-10-13 07:45:42

http://www.qtcentre.org/threads/55873-blit_setup%28%29-Screen-depth-15-n...!

Any help?

portgazzz

2015-10-13 08:30:49

ohh thanks davef

where i find qscreenlinuxfb_qws.cpp
i using ubuntu
thanks

portgazzz

2015-10-13 08:40:40

/****************************************************************************
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#include "qscreenlinuxfb_qws.h"

#ifndef QT_NO_QWS_LINUXFB
//#include "qmemorymanager_qws.h"
#include "qwsdisplay_qws.h"
#include "qpixmap.h"
#include <private/qwssignalhandler_p.h>
#include <private/qcore_unix_p.h> // overrides QT_OPEN

#include <unistd.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/kd.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <limits.h>
#include <signal.h>

#include "qwindowsystem_qws.h"

#if !defined(Q_OS_DARWIN) && !defined(Q_OS_FREEBSD)
#include <linux/fb.h>

#ifdef __i386__
#include <asm/mtrr.h>
#endif
#endif

QT_BEGIN_NAMESPACE

extern int qws_client_id;

//#define DEBUG_CACHE

class QLinuxFbScreenPrivate : public QObject
{
public:
    QLinuxFbScreenPrivate();
    ~QLinuxFbScreenPrivate();

    void openTty();
    void closeTty();

    int fd;
    int startupw;
    int startuph;
    int startupd;
    bool blank;
    QLinuxFbScreen::DriverTypes driverType;

    bool doGraphicsMode;
#ifdef QT_QWS_DEPTH_GENERIC
    bool doGenericColors;
#endif
    int ttyfd;
    long oldKdMode;
    QString ttyDevice;
    QString displaySpec;
};

QLinuxFbScreenPrivate::QLinuxFbScreenPrivate()
    : fd(-1), blank(true), doGraphicsMode(true),
#ifdef QT_QWS_DEPTH_GENERIC
      doGenericColors(false),
#endif
      ttyfd(-1), oldKdMode(KD_TEXT)
{
#ifndef QT_NO_QWS_SIGNALHANDLER
    QWSSignalHandler::instance()->addObject(this);
#endif
}

QLinuxFbScreenPrivate::~QLinuxFbScreenPrivate()
{
    closeTty();
}

void QLinuxFbScreenPrivate::openTty()
{
    const char *const devs[] = {"/dev/tty0", "/dev/tty", "/dev/console",
0};

    if (ttyDevice.isEmpty()) {
        for (const char * const *dev = devs; *dev; ++dev) {
            ttyfd = QT_OPEN(*dev, O_RDWR);
            if (ttyfd != -1)
                break;
        }
    } else {
        ttyfd = QT_OPEN(ttyDevice.toAscii().constData(), O_RDWR);
    }

    if (ttyfd == -1)
        return;

    if (doGraphicsMode) {
        ioctl(ttyfd, KDGETMODE, &oldKdMode);
        if (oldKdMode != KD_GRAPHICS) {
            int ret = ioctl(ttyfd, KDSETMODE, KD_GRAPHICS);
            if (ret == -1)
                doGraphicsMode = false;
        }
    }

    // No blankin' screen, no blinkin' cursor!, no cursor!
    const char termctl[] = "\033[9;0]\033[?33l\033[?25l\033[?1c";
    QT_WRITE(ttyfd, termctl, sizeof(termctl));
}

void QLinuxFbScreenPrivate::closeTty()
{
    if (ttyfd == -1)
        return;

    if (doGraphicsMode)
        ioctl(ttyfd, KDSETMODE, oldKdMode);

    // Blankin' screen, blinkin' cursor!
    const char termctl[] = "\033[9;15]\033[?33h\033[?25h\033[?0c";
    QT_WRITE(ttyfd, termctl, sizeof(termctl));

    QT_CLOSE(ttyfd);
    ttyfd = -1;
}

/*!
    \enum QLinuxFbScreen::DriverTypes

    This enum describes the driver type.

    \value GenericDriver Generic Linux framebuffer driver
    \value EInk8Track e-Ink framebuffer driver using the 8Track chipset
 */

/*!
    \fn QLinuxFbScreen::fixupScreenInfo(fb_fix_screeninfo &finfo,
fb_var_screeninfo &vinfo)

    Adjust the values returned by the framebuffer driver, to work
    around driver bugs or nonstandard behavior in certain drivers.
    \a finfo and \a vinfo specify the fixed and variable screen info
    returned by the driver.
 */
void QLinuxFbScreen::fixupScreenInfo(fb_fix_screeninfo &finfo,
fb_var_screeninfo &vinfo)
{
    // 8Track e-ink devices (as found in Sony PRS-505) lie
    // about their bit depth -- they claim they're 1 bit per
    // pixel while the only supported mode is 8 bit per pixel
    // grayscale.
    // Caused by this, they also miscalculate their line length.
    if(!strcmp(finfo.id, "8TRACKFB") && vinfo.bits_per_pixel == 1) {
        vinfo.bits_per_pixel = 8;
        finfo.line_length = vinfo.xres;
    }
}

/*!
    \internal

    \class QLinuxFbScreen
    \ingroup qws

    \brief The QLinuxFbScreen class implements a screen driver for the
    Linux framebuffer.

    Note that this class is only available in \l{Qt for Embedded Linux}.
    Custom screen drivers can be added by subclassing the
    QScreenDriverPlugin class, using the QScreenDriverFactory class to
    dynamically load the driver into the application, but there should
    only be one screen object per application.

    The QLinuxFbScreen class provides the cache() function allocating
    off-screen graphics memory, and the complementary uncache()
    function releasing the allocated memory. The latter function will
    first sync the graphics card to ensure the memory isn't still
    being used by a command in the graphics card FIFO queue. The
    deleteEntry() function deletes the given memory block without such
    synchronization.  Given the screen instance and client id, the
    memory can also be released using the clearCache() function, but
    this should only be necessary if a client exits abnormally.

    In addition, when in paletted graphics modes, the set() function
    provides the possibility of setting a specified color index to a
    given RGB value.

    The QLinuxFbScreen class also acts as a factory for the
    unaccelerated screen cursor and the unaccelerated raster-based
    implementation of QPaintEngine (\c QRasterPaintEngine);
    accelerated drivers for Linux should derive from this class.

    \sa QScreen, QScreenDriverPlugin, {Running Applications}
*/

/*!
    \fn bool QLinuxFbScreen::useOffscreen()
    \internal
*/

// Unaccelerated screen/driver setup. Can be overridden by accelerated
// drivers

/*!
    \fn QLinuxFbScreen::QLinuxFbScreen(int displayId)

    Constructs a QLinuxFbScreen object. The \a displayId argument
    identifies the Qt for Embedded Linux server to connect to.
*/

QLinuxFbScreen::QLinuxFbScreen(int display_id)
    : QScreen(display_id, LinuxFBClass), d_ptr(new QLinuxFbScreenPrivate)
{
    canaccel=false;
    clearCacheFunc = &clearCache;
#ifdef QT_QWS_CLIENTBLIT
    setSupportsBlitInClients(true);
#endif
}

/*!
    Destroys this QLinuxFbScreen object.
*/

QLinuxFbScreen::~QLinuxFbScreen()
{
#ifdef QT_NO_QWS_SIGNALHANDLER
    delete d_ptr;
#endif
}

/*!
    \reimp

    This is called by \l{Qt for Embedded Linux} clients to map in the
framebuffer.
    It should be reimplemented by accelerated drivers to map in
    graphics card registers; those drivers should then call this
    function in order to set up offscreen memory management. The
    device is specified in \a displaySpec; e.g. "/dev/fb".

    \sa disconnect()
*/

bool QLinuxFbScreen::connect(const QString &displaySpec)
{
    d_ptr->displaySpec = displaySpec;

    const QStringList args = displaySpec.split(QLatin1Char(':'));

    if (args.contains(QLatin1String("nographicsmodeswitch")))
        d_ptr->doGraphicsMode = false;

#ifdef QT_QWS_DEPTH_GENERIC
    if (args.contains(QLatin1String("genericcolors")))
        d_ptr->doGenericColors = true;
#endif

    QRegExp ttyRegExp(QLatin1String("tty=(.*)"));
    if (args.indexOf(ttyRegExp) != -1)
        d_ptr->ttyDevice = ttyRegExp.cap(1);

#if Q_BYTE_ORDER == Q_BIG_ENDIAN
#ifndef QT_QWS_FRAMEBUFFER_LITTLE_ENDIAN
    if (args.contains(QLatin1String("littleendian")))
#endif
        QScreen::setFrameBufferLittleEndian(true);
#endif

    QString dev = QLatin1String("/dev/fb0");
    foreach(QString d, args) {
  if (d.startsWith(QLatin1Char('/'))) {
      dev = d;
      break;
  }
    }

    if (access(dev.toLati...stripped-down

portgazzz

2015-10-13 08:41:45

what must i change in qscreenlinuxfb_qws.cpp

thanks for help davef

davef

2015-10-13 10:36:52

> what must i change in qscreenlinuxfb_qws.cpp

No idea.

I would try to figure out why you get your first error message.  What
device are you trying run this on?

Maybe look into framebuffer details and/or touchscreen/touchscreen driver
details to find out which screen depths are supported.

Have you got a ts.conf in /etc ?
What does it say?

portgazzz

2015-10-13 12:22:42

i using friendlyarm tiny4412

ok i try to find framebuffer and touchscreen driver details to find out
screen depth supported

ts.conf
module_raw friendlyarm-ts-input
module pthres pmin=30
module variance delta=30
module dejitter delta=10000
module linier 
~
~
~
~

davef

2015-10-13 18:56:18

... module linear

http://manpages.ubuntu.com/manpages/utopic/man5/ts.conf.5.html

Doesn't seem to help

Can you look through the source code for blit_setup() and see what triggers
this warning message.  Maybe, that will tell you where it is looking for
this information.

Command:
   fbset

Ah ... NOTE: fbset cannot be used to change display resolution or colour
depth. Depending on the framebuffer device different kernel command line
may be needed to do this. Please refer to your display driver manual for
details.

From: OSELAS.BSP-Pengutronix-Mini2440-Quickstart.pdf

Looks like it might be in kernelconfig, had a quick look and couldn't find
it.

Juergen Borleis

2015-10-14 08:14:05

I don't know the kernel for the tiny4412. Most framebuffer drivers for such
devices are fixed to one colour depth. To get a different colour depth you
need to change the kernel driver to let it program the LCD controller
differently.

For the Mini2440 I made these kind of changes to its LCD controller driver.

portgazzz

2015-10-15 04:10:55

thanks davef and juergen 
if I resolve my issue I'll post

portgazzz

2015-10-15 06:51:32

davef

i reconfigured my qt
and i  run
./test -qws

blit_setup(): Screen depth 32 not supported! 
aborted
not show agaain

but now 
transformed: drifer not found
aborted

now i try to solving this problem
if you know to solving this problem please post

thanks

davef

2015-10-15 08:24:19

Explain how you fixed the original problem, then others might learn from
your efforts.

I think you mean 

transformed: driver not found

Dropping your error message into Google gives lots of hits and this one
looks quite relevant

http://www.qtforum.org/article/36051/how-run-a-qt-program-on-qtopia-arm-...

portgazzz

2015-10-15 09:01:40

./test -qws
blit_setup(): Screen depth 32 not supported! 
aborted

SOLVED
reconfigure qt4.8.6
using ./configure -depth all

davef
ok i'll try to solve this problem

thanks a lot 

if i solve 
problem
"transformed: driver not found"

i'll post how to solving the problem

thanks