From: Chris Wilson <chris@chris-wilson.co.uk>
To: sudeep <sudeeprk@tataelxsi.co.in>, intel-gfx@lists.freedesktop.org
Subject: Re: GMA HD driver support for hardware acceleration
Date: Tue, 01 Feb 2011 10:41:01 +0000 [thread overview]
Message-ID: <849307$bcrjdk@azsmga001.ch.intel.com> (raw)
In-Reply-To: <4D47DD46.2010202@tataelxsi.co.in>
On Tue, 01 Feb 2011 15:45:34 +0530, sudeep <sudeeprk@tataelxsi.co.in> wrote:
> Hi All,
>
> I am a starter in Linux graphics. Our development board is
> *MATXM*-*CORE*-*411*-*B* from Emerson. It has
> Intel i5 core and QM57 chip set. We have a a requirement to use the
> hardware acceleration for various graphics
> operations such as blit, blend etc.
> 1)Does the Linux graphics driver for GMA-HD(in our understanding, i915)
> support hardware acceleration for
> blit/blend operations?
Yes. Though the BLT engine (the blitter) can not do alpha blend nor
scaling, it is a pure bitblt. To do alpha blending and other "advance"
blits, you need to use the 3D pipeline (as on all previous genX).
Ideally you would use GL.
> 2)How to test and verify the hardware acceleration for blit/blend
> operations in GMA-HD platform
The hardware contains a couple of register to show GPU activity. These are
exposed in intel-gpu-tools/tool/intel_gpu_top, which shows how busy the
GPU is. Assuming that tracing the actual emission of GPU commands doesn't
convince you that the operations are being performed on the GPU.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2011-02-01 10:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-01 10:15 GMA HD driver support for hardware acceleration sudeep
2011-02-01 10:41 ` Chris Wilson [this message]
2011-02-01 13:47 ` sudeep
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