qt embedded enable plugin-gfx-powervr

I see the latest version of qt embedded does not include the plugin-gfx-powervr. The latest qt4-embedded.inc is configured:

QT_CONFIG_FLAGS += " \
-embedded ${QT_ARCH} \
-qtlibinfix ${QT_LIBINFIX} \
-plugin-gfx-transformed -plugin-gfx-qvfb -plugin-gfx-vnc -plugin-gfx-directfb \
-plugin-mouse-tslib -qt-mouse-pc -qt-mouse-qvfb -qt-mouse-linuxinput \
-qt-kbd-tty \
-DQT_KEYPAD_NAVIGATION \
"

but without -plugin-gfx-powervr. This is because powervr need -DQT_NO_QWS_CURSOR and -DQT_WS_CLIENTBLIT?
I'm trying to modify the recipes to include powervr pluging, i have add -plugin-gfx-powervr -DQT_NO_QWS_CURSOR -DQT_WS_CLIENTBLIT. But this operation need two patches https://github.com/prabindh/qt-configs/tree/master/qt4.8

Somebody know a good solution to get the possibility to compile this plugin? Thank's for your time.

/Cordiali Saluti/
*Stefano Stucchi
*
*Genesis srl*
Via L. Manara 3/A
25126 Brescia

Tel: (+39) 030 5030499
www.supergenesis.it

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Hi,

are you sure you need the plugin? Koen mostly stated that the powervr plugin doesnt give much improvement.

Bye Henning

Il 25/05/2012 17.11, Henning Heinold ha scritto:

I'm using beagleboard... and i'm read i need powervr to improve performance of opengl. But i can't test if is true or not because i can't build the plugin :)

/Cordiali Saluti/
*Stefano Stucchi
*
*Genesis srl*
Via L. Manara 3/A
25126 Brescia

Tel: (+39) 030 5030499
www.supergenesis.it

Il contenuto di questo messaggio è confidenziale e riservato.
Può contenere informazioni la cui riservatezza è tutelata legalmente.
Ne sono vietati la riproduzione, la diffusione e l'uso.

This message is for the addressee only. It may contain informations protected by law. Reproduction, transmission, or use of this message is prohibited.

Ok, now i'm trying to build the plugin-gfx-powervr but i need a little help with editing the recipes.

For my test i'm editing the qt4.inc with this lines:

QT_GLFLAGS ?= "-opengl es2 -depths 16,24,32 -plugin-gfx-powervr"

and i add at the end of line of QT_CONFIG_FLAGS
"-DQT_NO_QWS_CURSOR \
-DQT_WS_CLIENTLIT"

so i start the building with:
MACHINE=beagleboard ./oebb.sh bitbake qt4-embedded

But the build blocks on this error:
pvrqwswegl.c:42:30: fatal error: GLES/eglplatform.h: No such file or directory

So i apply these patches from https://github.com/prabindh/qt-configs/tree/master/qt4.8 and build is finish correclty. Problem #1 i see the rm_work delete the folder of qt library but i need that for cross-compile with qt-creator my program. I see the new library is installed in /tmp.../sysroot/beagleboard/usr/lib so i copy and paste on my sdcard in the same position. And i run qdemo -qws -display powervr and i get:

Problem #2
QLibraryPrivate::loadPlugin failed on "/usr/lib/qtopia/plugins/gfxdrivers/libqgfxpvregl.so" : "Cannot load library /usr/lib/qtopia/plugins/gfxdrivers/libqgfxpvregl.so: (/usr/lib/qtopia/plugins/gfxdrivers/libqgfxpvregl.so: undefined symbol: _ZNK16QWSWindowSurface12directRegionEv)" "Cannot load library /usr/lib/qtopia/plugins/gfxdrivers/libqgfxpvregl.so: (/usr/lib/qtopia/plugins/gfxdrivers/libqgfxpvregl.so: undefined symbol: _ZNK16QWSWindowSurface12directRegionEv)" could not load

Anybody have some info to solve the problem?
Thank's

Hm looks like libqgfxpvregl.so needs more some so-libs depends, find out in which lib the Symbol is e.g. objdump or readelf and tweak the linker line for libqgfxpvregl.

Bye Henning