chiachen wrote:
> *Hi, DOK,
>
> I'm reading the DirectFB source code these days, and focus on
> the /src/gfxdriers/i810.
> Have some questions.
>
> 1. Does the i810 DirectFB drivers in the gfxdrivers contains Intel852GM
> chipset ?
It's the i830 driver, but it only checks for I830:
static int
driver_probe( CoreGraphicsDevice *device )
{
switch (dfb_gfxcard_get_accelerator( device )) {
case FB_ACCEL_I830: /* Intel 830 */
return 1;
}
return 0;
}
> 2. I found many debug information in the source code , such as*
> ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
> D_DEBUG( "DirectFB/I810: DMA Buffer Performance Monitoring:\n");
> D_DEBUG( "DirectFB/I810: %9d DMA buffer size in KB\n",
> RINGBUFFER_SIZE/1024 );
> D_DEBUG( "DirectFB/I810: %9d i810_wait_for_blit_idle calls\n",
> i810dev->idle_calls );
> D_DEBUG( "DirectFB/I810: %9d i810_wait_for_space calls\n",
> i810dev->waitfifo_calls );
> D_DEBUG( "DirectFB/I810: %9d BUFFER transfers (i810_wait_for_space
> sum)\n",
> i810dev->waitfifo_sum );
> D_DEBUG( "DirectFB/I810: %9d BUFFER wait cycles (depends on GPU/CPU)\n",
> i810dev->fifo_waitcycles );
> D_DEBUG( "DirectFB/I810: %9d IDLE wait cycles (depends on GPU/CPU)\n",
>
> ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
> *Where can I find the output of these debug informaiton?
> How could I use those information to judge whether Graphics Hardward
> accelerate work or not?
Acceleration is not yet supported by DirectFB's i830 driver.
--
Best regards,
Denis Oliver Kropp
.------------------------------------------.
| DirectFB - Hardware accelerated graphics |
| http://www.directfb.org/ |
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