PowerVR integration with Qt problems

GoogleGroups
1

Hi, All

We followed “OMAP35x Graphics SDK Getting Started Guide” to get
PowerVR works on beagle board.
We started loading powerVR modules successfully,

Target #/etc/init.d/rc.pvr start
And we could run any of its demo examples, like eglinfo,
sgx_blit_test, sgx_flip_test, ovg_unit_test
Target $ ./gles1test1 –t
Target $ ./gles2test1 –t
Target $ ./ovg_unit_test –t

so we builded qt with arguments as below, in order to use PowerVR feature of Qt:
-plugin-gfx-powervr
-opengl es1

The PowerVR driver also needs to be told which WSEGL library to use.
This is done by creating/modifying /etc/powervr.ini:

[default]
WindowSystem=libpvrQWSWSEGL.so

When we start a Qt/Embedded application, we modify the QWS_DISPLAY
environment variable to use the "powervr" driver instead of "LinuxFb".

QWS_DISPLAY=”powervr:size=480x640:depth=32”

To test the OpenGL ES integration, we use the hellogl_es example in Qt
and run it on the device, and we got the errors pasted following.

Target:/opt/qte4.5.1/examples/opengl/hellogl_es# ./hellogl_es -qws
Could not create the temporary E<4>: OSCpuVToPageList: get_user_pages
failed (-14), trying something else<4>: OSCpuVToPageList:
get_user_pages failed (-14), trying something elseGL surface
QEglContext::createSurface(): Unable to create EGL surface, error = 0x3001
Could not re-create the temporary EGL surface
blit_16(): Image format 0 not supported!

I want to know how to solve this problem? What is the error about?
Any help is highly appreciated!

Thanks

2

Could it be that you’re trying to run in 32bpp and the driver only supports 16bpp ? (AFAIK)

3

Hi.

   I compiled omap3-sgx-module and libgles-omap3 in OE, and I modified
the the board setting for omapzoom ( I wanna it compiled PowerVR for
omapzoom board).
the building is very well going. then, I installed omap3-sgx-moudules
and libgles-omap3 binaries.
  when I insert the modules into kernel, I got the errors:

  target# /etc/init.d/pvr-init

ERROR: Module omaplfb does not exist in /proc/modules
<4>omaplfb: Unknown symbol omap_dispc_unregister_isr
omaplfb: Unknown symbol omap_dispc_unregister_isr
<4>omaplfb: Unknown symbol omap_dispc_register_isr
omaplfb: Unknown symbol omap_dispc_register_isr
FATAL: Error inserting omaplfb (/lib/modules/2.6.29-omap1/kernel/drivers/gpu/pvr
/omaplfb.ko): Unknown symbol in module, or unknown parameter (see dmesg)
/etc/rc5.d/S30pvr-init: line 23: devmem2: not found

I used kernel 2.6.29 which is from OE specially building for
omapzoom, also the rootfs.

"ERROR: Module omaplfb does not exist in /proc/modules ", I think,
this is becuase I don't have inserted the omapfb module before when it
removing from kernel.

"Unknown symbol :omap_dispc_unregister_isr", but, I don't know this
error, I found this symbol is definded in kernel source
(drivers/video/omap2/dss/dispc.c)
     EXPORT_SYMBOL(omap_dispc_register_isr)

I am stopped by this error, can't get my process going on, any help is welcome.

thanks

4

I guess your kernel is not built with DSS2 support.

Regards,
Pratheesh