Taking pipeline processing to the next level

[finalpatch via Digitalmars-d]

On Tuesday, 6 September 2016 at 14:26:22 UTC, finalpatch wrote:
> On Tuesday, 6 September 2016 at 14:21:01 UTC, finalpatch wrote:
>> Then some template magic will figure out the LCM of the 2 
>> kernels' pixel width is 3*4=12 and therefore they are fused 
>> together into a composite kernel of pixel width 12.  The above 
>> line compiles down into a single function invokation, with a 
>> main loop that reads the source buffer in 4 pixels step, call 
>> MySimpleKernel 3 times, then call AnotherKernel 4 times.
>
> Correction:
> with a main loop that reads the source buffer in *12* pixels 
> step, call MySimpleKernel 3 times, then call AnotherKernel 4 
> times.

And of course the key to the speed is all function calls get 
inlined by the compiler.