Hi,
I use windows mobile 2005 with egl for my application
and  I tryed to draw a virtual object over my video
frame (using bitmap)as below :
showimage(){
....
 // display the image
hMemDC = CreateCompatibleDC(hdc);
Old = (HBITMAP) SelectObject(hMemDC, hBitmap);
bRes = BitBlt(hdc,0, 0, IMAGE_WIDTH, IMAGE_HEIGHT,
        hMemDC, 0, 0, SRCCOPY);
		
 SelectObject(hMemDC, Old);
 DeleteDC(hMemDC);
}

drawVirtual(){
//draw virtual cube here
.....
eglSwapBuffers(eglDisplay, eglSurface) ;
}
by applying these functions, the image (frame video
and virtual object)is flickered.
is someone could tell me how make double buffering
with egl ?
Regard



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Your code snippet is missing the important part: the one where you
create the OpenGL ES render surface.

That code is independent of ARTK+ though. You can find good samples
coming with most OpenGL ES implementations (Rasteroid, Vincent). Look
into those samples and just copy the code that setups render targets...

Daniel



Andriamasinoro Rahajaniaina wrote:
> Hi,
> I use windows mobile 2005 with egl for my application
> and  I tryed to draw a virtual object over my video
> frame (using bitmap)as below :
> showimage(){
> ....
>  // display the image
> hMemDC = CreateCompatibleDC(hdc);
> Old = (HBITMAP) SelectObject(hMemDC, hBitmap);
> bRes = BitBlt(hdc,0, 0, IMAGE_WIDTH, IMAGE_HEIGHT,
>         hMemDC, 0, 0, SRCCOPY);
> 		
>  SelectObject(hMemDC, Old);
>  DeleteDC(hMemDC);
> }
>
> drawVirtual(){
> //draw virtual cube here
> .....
> eglSwapBuffers(eglDisplay, eglSurface) ;
> }
> by applying these functions, the image (frame video
> and virtual object)is flickered.
> is someone could tell me how make double buffering
> with egl ?
> Regard
>
>
>
>       _____________________________________________________________________________ 
> Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail 
>