Lindo,

unless you can provide us the code of your driver, I don't think we can
debug your problem.

Regards,

Le dimanche 22 novembre 2009 à 16:53 +0530, Lindo Lonappan a écrit :
> Dear Lionel/All,
> 
> A gentle remainder. Sorry for the inconvenience.
> We don't get any replay for the last mail.
> We are expecting some hints from you. If any one has any idea please
> share with us.
> 
> Thanks & Regards, 
> Lindo Lonappan.
> 
> 
> -------- Original Message --------
> Dear Lionel,
> 
> Thanks for your reply.
> 
> We don't get the exact meaning of your question. Our observations are
> given below,
> 
> We have a gfxdriver written for DirectFB-1.0. When we use this driver
> for DirectFB-1.0, we got DFB_NOVIDEOMEMORY error on video memory
> underflow.
> We made some modification in this driver to compatible with
> DirectFB-1.4(Since we observed some changes for Data Structures (like
> CoreSurface) in between these two versions.). And we are using this
> driver for DirectFB-1.4.
> 
> We expect buffer allocation is done by our gfxdriver since we got
> DFB_NOVIDEOMEMORY error for DirecrFB-.10.
> 
> Regards,
> Lindo
> 
> Lionel Landwerlin wrote: 
> > Does you gfxdriver implement buffer allocation ?
> > 
> > 
> > On Thu, Nov 12, 2009 at 3:20 PM, Lindo Lonappan
> > <li...@tataelxsi.co.in> wrote:
> >         Dear Lionel/All,
> >         
> >         Thanks Lionel for your response.
> >         
> >         Currently we are calling Lock() after CreateSurface().
> >         But we don't get any error on Lock() after complete usage of
> >         video memory.
> >         
> >         We tried to call the function,
> >         
> >         surface->Clear(surface, 0 , 0, 0, 255);
> >         
> >         after calling CreateSurface(). But in that case, system hang
> >         on Clear() function.
> >         
> >         The surface format we used is DSPF_UYVY.
> >         Is there any issue for Clear() on YUV surface since there is
> >         no alpha value.
> >         
> >         Can any one please tell what should we do next??
> >         
> >         Thanks a lot!!!
> >         
> >         Regards,
> >         Lindo.
> >         
> >         
> >                 ------------------------------
> >                 
> >                 Message: 2
> >                 Date: Thu, 12 Nov 2009 07:10:02 +0100
> >                 From: Lionel Landwerlin <llandwer...@gmail.com>
> >                 Subject: Re: [directfb-dev] For CreateSurface,
> >                 DFB_NOVIDEOMEMORY error
> >                        is not getting even if there is no video
> >                 memory( In DirectFB-1.4.2)
> >                 To: directfb-dev@directfb.org
> >                 Message-ID: <1258006202.24296.31.ca...@coalu.atr>
> >                 Content-Type: text/plain; charset="UTF-8"
> >                 
> >                 Ok, now I remember that in directfb 1.4, buffers are
> >                 allocated at the
> >                 last moment. So you need to make at least one
> >                 operation on your buffers
> >                 to be sure they have been allocated.
> >                 
> >                 For example you can that :
> >                 
> >                 surface = SuperSurface->CreateSurface(...)
> >                 ret = surface->Clear(...)
> >                 /* check if ret == DFB_NOVIDEOMEMORY */
> >                 
> >                 or 
> >                 surface = SuperSurface->CreateSurface(...)
> >                 ret = surface->Lock(...)
> >                 /* check if ret == DFB_NOVIDEOMEMORY */
> >                 surface->Unlock(...)
> >                 
> >                 
> >                 Le jeudi 12 novembre 2009 ? 10:55 +0530, Lindo
> >                 Lonappan a ?crit :
> >                  
> >                         Dear Lionel/All,
> >                         
> >                          Our configuration is "system=fbdev" and
> >                         gfxdriver is a proprietary
> >                         one.
> >                         
> >                         Regards,
> >                         Lindo
> >                            
> >                                 ------------------------------
> >                                 
> >                                 Message: 5
> >                                 Date: Wed, 11 Nov 2009 14:04:05
> >                                 +0100
> >                                 From: Lionel Landwerlin
> >                                 <llandwer...@gmail.com>
> >                                 Subject: Re: [directfb-dev] For
> >                                 CreateSurface, DFB_NOVIDEOMEMORY
> >                                 error
> >                                        is not getting even if there
> >                                 is no video memory( In
> >                                 DirectFB-1.4.2)
> >                                 To: directfb-dev@directfb.org
> >                                 Message-ID:
> >                                 <1257944645.24296.10.ca...@coalu.atr>
> >                                 Content-Type: text/plain;
> >                                 charset="UTF-8"
> >                                 
> >                                 Le mercredi 11 novembre 2009 ? 17:56
> >                                 +0530, Lindo Lonappan a ?crit :
> >                                        
> >                                         Dear all,
> >                                         
> >                                         Our question is related to
> >                                         DirectFB-1.4.2.
> >                                         
> >                                         We are working in an
> >                                         embedded platform.
> >                                         
> >                                         We are creating
> >                                         IDirectFBSurface using
> >                                         CreateSurface() API. In the
> >                                         test application we are
> >                                         creating a lot of surfaces.
> >                                         We are using the following
> >                                         settings in
> >                                         DFBSurfaceDescription,
> >                                         ....
> >                                         surfaceDesc.flags       =
> >                                          DSDESC_CAPS | ....;
> >                                         surfaceDesc.caps        =
> >                                         DSCAPS_VIDEOONLY;
> >                                         ....
> >                                         
> >                                         But even after complete
> >                                         usage of  video memory, the
> >                                         CreateSurface() is not
> >                                         returning any error. We
> >                                         expect an DFBResult
> >                                         DFB_NOVIDEOMEMORY in this
> >                                         scenario. We get this
> >                                         DFBResult when we test with
> >                                         DirectFB-1.0.
> >                                         
> >                                         Is this is a bug in
> >                                         DirectFB-1.4?
> >                                         
> >                                         If yes, can any one please
> >                                         tell, what should we do to
> >                                         solve this or where should
> >                                         we look?
> >                                         
> >                                         If this is not a bug, what
> >                                         should we do to know video
> >                                         memory underflow happened?
> >                                         
> >                                                  
> >                                 What system/gfxdriver are you
> >                                 using ?
> >                                  
> >         
> >         
> >         _______________________________________________
> >         directfb-dev mailing list
> >         directfb-dev@directfb.org
> >         http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev
> > 
> _______________________________________________
> directfb-dev mailing list
> directfb-dev@directfb.org
> http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev


-- 
Lionel Landwerlin

_______________________________________________
directfb-dev mailing list
directfb-dev@directfb.org
http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev

Reply via email to