<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Thanks a lot Chris. Thanks for your valuable inputs. Sudeep Chris Wilson wrote: <blockquote cite="mid:849307$bcrjdk@azsmga001.ch.intel.com" type="cite"> <pre wrap="">On Tue, 01 Feb 2011 15:45:34 +0530, sudeep <a class="moz-txt-link-rfc2396E" href="mailto:sudeeprk@tataelxsi.co.in"><sudeeprk@tataelxsi.co.in></a> wrote: </pre> <blockquote type="cite"> <pre wrap="">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? </pre> </blockquote> <pre wrap=""> 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. </pre> <blockquote type="cite"> <pre wrap="">2)How to test and verify the hardware acceleration for blit/blend operations in GMA-HD platform </pre> </blockquote> <pre wrap=""> 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 </pre> </blockquote> </body> </html>