Various OpenCL benchmarks

Matthias Vogelgesang 39103aeaa8 Initial commit 8 anni fa
Makefile 39103aeaa8 Initial commit 8 anni fa
c.mk 39103aeaa8 Initial commit 8 anni fa
ocl.c 39103aeaa8 Initial commit 8 anni fa
ocl.h 39103aeaa8 Initial commit 8 anni fa
perf.c 39103aeaa8 Initial commit 8 anni fa