Hi
Thanks for all of the help on the windowing problem. I now have that working
but I have to go onto the next stage that is a little involved. I am creating
a window. All the information that has to do with the window is stored in a
structure like so.
typedef struct view {
int state; /* state of view
*/
int flags; /* properties of the view
*/
int x, y, w, h; /* view position and size on screen
*/
unsigned long token; /* private token of the application
*/
char label[MAX_LABEL]; /* label string (client-defined label)
*/
char *client_name; /* name of client (trusted label)
*/
int lx, ly, lw, lh; /* position and size of label
*/
struct buffer *buf; /* buffer that is visible within the view
*/
int buf_x, buf_y; /* offset to the visible buffer area
*/
struct view *share_next; /* next view of the same buffer
*/
struct view *next; /* next view in ordered stacking list
*/
CORBA_Object_base listener; /* receiver of events for this view
*/
nitpicker owner; /* associated client id
*/
IDirectFBWindow *vwindow; /* window associated with this particular
*/
DFBWindowDescription wdesc; /* This window will have a surface for
graphics*/
IDirectFBSurface *vsurface;
DFBSurfaceDescription sdesc;
DFBDataBufferDescription ddsc;
IDirectFBDataBuffer *buffer;
IDirectFBImageProvider *image_provider;
} view;
There are several calls to CORBA for inter process/client communication.
What I want do do is map the data stream from a client to the window I have
created as an image.
The graphics are initialized as:
DirectFBCreate (&dfb);// Create the frame buffer interface
dfb->GetDeviceDescription( dfb, &gdesc ); //Get the discription of the
graphics device
dfb->GetDisplayLayer( dfb, DLID_PRIMARY, &dl ); // grab the interface to the
screen primary display layer
dl->SetCooperativeLevel( dl, DLSCL_ADMINISTRATIVE );
if (!((gdesc.blitting_flags & DSBLIT_BLEND_ALPHACHANNEL) &&
(gdesc.blitting_flags & DSBLIT_BLEND_COLORALPHA )))
{
dl_config.flags = DLCONF_BUFFERMODE | DLCONF_PIXELFORMAT;
dl_config.buffermode = DLBM_BACKSYSTEM;
dl_config.pixelformat = DSPF_RGB32;
dl->SetConfiguration( dl, &dl_config );
}
dl->GetConfiguration( dl, &dl_config );
This is part of the routine that sets up the window.
v->sdesc.width = w;
v->sdesc.height = h;
v->wdesc.posx = x;
v->wdesc.posy = y;
v->wdesc.width = w;
v->wdesc.height = h;
dl->CreateWindow(dl, &v->wdesc, &v->vwindow); //Create a window for
each view
// dl->SetBackgroundImage( dl, bgsurface );
//dl->SetBackgroundMode( dl, DLBM_IMAGE );
v->vwindow->GetSurface( v->vwindow, &v->vsurface);
v->vwindow->SetOpacity(v->vwindow, 0x00 );
//v->vwindow->CreateEventBuffer( v->vwindow, &dfbbuffer );
//Need to fix draw rectangle call
//draw_frame(v);
/* update affected views */
draw_rec(first_view, NULL, do_redraw ? NULL : v->buf, x1, y1, x2, y2);
v->vwindow->SetOpacity(v->vwindow, 0xFF );
Finally I try and attach the data buffer.
void attach_data(view *cv,buffer *exc){
cv->ddsc.flags = DBDESC_MEMORY;
cv->ddsc.memory.data = &exc->data;
cv->ddsc.memory.length = cv->sdesc.width * (cv->sdesc.height - BORDER) *
4; //hard set for 32 bit
dfb->CreateDataBuffer( dfb, &cv->ddsc, &cv->buffer );
cv->buffer->CreateImageProvider( cv->buffer, cv->image_provider );
//cv->image_provider->RenderTo(cv->image_provider,cv->vsurface,NULL);
}
The line causes the program to crash. Any ideas?
Thanks in advance.
--
If you think dogs can't count, try putting three dog biscuits in your pocket
and then give him only two of them.
**-Phil Pastoret**
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