Thanks a lot Chris. Thanks for your valuable inputs.
Sudeep
Chris Wilson wrote:
On Tue, 01 Feb 2011 15:45:34 +0530, sudeep <sudee...@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
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