[x264-devel] Re: [PATCH] Altivec optimizations for quant4x4, quant4x4dc, quant8x8, sub8x8_dct8, sub16x16_dct8, pixel_sa8d_8x8

Guillaume POIRIER gpoirier at mplayerhq.hu
Thu Sep 7 00:28:20 CEST 2006


Hi,

Guillaume POIRIER a écrit :

> Another day, another revision of my patchset. In today's menu:
> improved all quant routines to yet again shave off a couple of
> percents of CPU cycles, and some more GCC3.3 fixes.

In today's menu:
Optimized version of existing sub4x4, sub8x8, and sub16x16 by taking 
advantage of 16-bytes aligned dct arrays, which garantees that on all 
existing routines every element is at 8-bytes aligned.

Tomorrow or the next day, I should have an Altivec-optimized 
pixel_sa8d_16x16.

Comments and feedbacks welcome, as always.

Guillaume

-- 
With DADVSI (http://en.wikipedia.org/wiki/DADVSI), France finally has
a lead on USA on selling out individuals right to corporations!
Vive la France!
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