We have written our own gfx driver. I have run df_dok and can see that
acceleration is enabled for blitting.
I have the following situation where acceleration does not work Can anyone
please explain:
sdsc.flags = DSDESC_CAPS |
DSDESC_WIDTH |
DSDESC_HEIGHT |
DSDESC_PIXELFORMAT|
DSDESC_PREALLOCATED;
sdsc.caps = DSCAPS_SYSTEMONLY;
sdsc.preallocated[0].data = address;
sdsc.preallocated[0].pitch = Stride;
ret = s_dfb->CreateSurface( s_dfb, &sdsc, &secSurface );
I then call the following to see if acceleration is enabled:
DFBAccelerationMask mask;
dest->GetAccelerationMask( dest, source, &mask );
if (mask & func) {
fprintf(stderr,"Blitting is accelerated\n");
}
else {
fprintf(stderr,"Blitting is NOT accelerated\n");
}
The only difference I could see between the accelerated and non accelerated
case is the DSDESC_PREALLOCATED;
sdsc.caps = DSCAPS_SYSTEMONLY;
Can anyone please explain...
Thanks
Homam.
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