Hi Hanchao, I am implementing a custom MIO which makes use of Overlay interface.I have implemented my MIO calls "mSurface->createOverlay" to get reference to the OverlayRef object.
The above createOverlay function is implemented in the ISurface.cpp. The height ,weight, format information is passed using the parcel object and the overlay is created succesfully. The created overlay is passed back to the ISurface through the call "OverlayRef::writeToParcel". But while reading the reply parcel through "OverlayRef::readFromParcel(reply)" call ,the OverlayRef object is NULL. Did you face similar issue when implementing overlay ? Regards, Ajay On Apr 7, 8:03 am, pramod <pramodkum...@gmail.com> wrote: > hi , > > Thanks for responding, i have already implemented theoverlayhardware > HAL in libhardware. > Theoverlayengine is created in the surfaceflinger,during > displayhardware init(). > After putting some debug prints i found out that thisoverlayengine > is properly being used during the creation of theOverlayin > LayerBuffer::OverlaySource::OverlaySource. The OverlayRef is also > created and is retured properly. > > But my problem is that i am not being able to access the OverlayRef > object in android_surface_output.cpp. The OverlayRef object is created > using the template class sp<>. > > I have even included the libraries libutils, libcutils which might be > needed for usage of template class sp, and also the header file "utils/ > RefBase.h". > > Still i am not able to access the OverlayRef object. > > Any help to solve the issue would be greatly appreciated. > > RegardsPramod > > On Apr 7, 7:26 am, waterblood <guoyin.c...@gmail.com> wrote: > > > It should be aoverlayengine in surfaceflinger which means a you > > should implment aoverlayhardware HAL in hardware\libhardware\modules > > \overlay > > > On 4月6日, 下午2时33分,pramod<pramodkum...@gmail.com> wrote: > > > > hi, > > > > I am implementing a custom MIO which makes use ofOverlayinterface. > > > my MIO calls theoverlayref through the call "mSurface->createOverlay", > > > then "newOverlay(ref)" call is used to getOverlay > > > > interface. > > > > Currently i am facing problem in "mSurface->createOverlay", this is > > > not returning the OverlayRef. Due to this the next call to "newOverlay > > > (ref)" is failing. > > > > "LayerBuffer::OverlaySource::OverlaySource(LayerBuffer& > > > layer,sp<OverlayRef>* overlayRef, uint32_t w, uint32_t h, int32_t > > > format)" in LayerBuffer.cpp should return theOverlayref object. > > > > am i missing anything??? Is theoverlaysupport fully implemented in > > > current Cupacake branch..? > > > > Thanks in advance. > > > >Pramod --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "android-framework" group. To post to this group, send email to android-framework@googlegroups.com To unsubscribe from this group, send email to android-framework+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-framework?hl=en -~----------~----~----~----~------~----~------~--~---
