C++ (Cpp) _renderSuface Examples

Example #1

File: video_surface.c Project: genesi/gst-fsl-plugins

/*=============================================================================
FUNCTION:           render2VideoSurface

DESCRIPTION:        This function render a new frame on specific video surface
                    It also will refresh other video surfaces in same video device
                    automaticallly.
==============================================================================*/
VSFlowReturn 
render2VideoSurface(void * vshandle, SourceFrame * frame, SourceFmt * srcfmt)
{
    VS_FLOW("Fun %s in\n", __FUNCTION__);

    VideoDevice * vd;
    VideoSurface * vsurface, *vsurface1;
    Updated updated;

    if ((vshandle==NULL)||(frame==NULL)){
        VS_ERROR("%s: parameters error!\n", __FUNCTION__);
        return VS_FLOW_PARAMETER_ERROR;
    }

    vsurface = (VideoSurface *)vshandle;

    if (vsurface->status == VS_STATUS_INVISIBLE) /* no need to render */
        return VS_FLOW_OK;
    
    vsurface->paddr = frame->paddr;
    vsurface->rendmask = 0;/*clear mask*/
    
    vd = SURFACE2DEVICE(vsurface);

    if (sem_trywait(gVSlock))
        return VS_FLOW_PENDING;



    vsurface1 = DEVICE2HEADSURFACE(vd);

    memset((void *)(&updated), 0, sizeof(Updated));
    while(vsurface1){
        if (_needRender(vsurface1, &updated, vd->renderidx)){
            _renderSuface(vsurface1, vd, &updated);
        }
        vsurface1 = NEXTSURFACE(vsurface1);
    };

    _FlipOnDevice(vd);

#if 0 /* no need to sleep anymore */
    if (vd->cnt>1)
        usleep(10000);
#endif

done:
    VS_UNLOCK(gVSlock);

    VS_FLOW("Fun %s out\n", __FUNCTION__);
    return VS_FLOW_OK;
err:
    return VS_FLOW_ERROR;
}

Example #2

File: mfw_gst_video_surface.c Project: mxOBS/deb-pkg_gstreamer-imx-0.10

static void
_refreshOnDevice (VideoDevice * vd)
{
  VideoSurface *vs = DEVICE2HEADSURFACE (vd);
  Updated update;
  while (vs) {
    vs->rendmask = 0;
    _renderSuface (vs, vd, &update);
    vs = NEXTSURFACE (vs);
  }
  _FlipOnDevice (vd);
}