efficient way to convert scatter indices into gather indices?

I\'m trying to write a stream compaction (take an array and get rid of empty elements) with SIMD intrinsics. Each iteration of the loop processes 8 elements at a time (SIMD width).

Porting MMX/SSE instructions to AltiVec

Let me preface this with.. I have extremely limited experience with ASM, and even less with SIMD. But it happens that I have the following MMX/SSE optimised code, that I would like to port across to

Maintaining both free and pro versions of an application

I want to create a PRO version of my application for Android and was wondering how to structure my repository.

韩红唱一首高音歌叫什么歌？

TCP/UDP and ethernet MTU Fragmentation

I\'ve read various sites and tutorials online but I am still confused. If the message is bigger than IP MTU, the开发者_运维知识库n send() returns the byte sent. What happens to the rest of the message

Function pointer with extra data

I have class which handles packages: typedef void (*FCPackageHandlerFunction)(FCPackage*); class FCPackageHandlers{

ffmpeg audio and the iphone

has anyone been able to make ffmpeg work with audio queues, I get an error when I try to create the queue.

Allegro SCAN_DEPEND problems

I am trying to build a project with the allegro-msvc80-4.2.2 pre-built package.I\'m using Visu开发者_StackOverflow社区al C++ Express Edition 2005 and have added the input libraryalld.lib and am includ

Eclipse CDT Editor support for altivec C++ extensions?

Does the Eclipse CDT C++ editor have a means of supporting the Altivec C++ language extensions, as implemented for example开发者_运维问答 in the GNU g++ compilers when compiling with -maltivec?

What makes Apple's PowerPC memcpy so fast?

I\'ve written several copy functions in search of a good memory strategy on PowerPC.开发者_如何学Go Using the Altivec or fp registers with cache hints (dcb*) doubles the performance over a simple byte