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 -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
