Source Layout
=============

(Note that at the current time, this document is not followed 100%.)

Reference functions should always go in ref/.  Non-reference functions
may not be in ref/.

Implementations are roughly categorized by the compiler flags they
use, architecture they compile on, where the source code came from,
or what type of functions they are.  The goal is to have all the
automake conditionals in liboil/Makefile.am, and none in lower-level
makefiles.

 - GCC Inline assembly directories: (powerpc, i386)

These can have any kind of GCC inline assembly (post gcc-3.2) that
compiles on the given architecture.  This also typically includes
assembly code that contains MMX/SSE/Altivec instructions, but does
not require any special compiler flags.

The directory powerpc_asm_blocks is for inline assembly that uses
the -fasm-blocks compiler flag on powerpc.

 - Intrinsics: (sse, altivec)

These directories contain architecture-specific code that is portable
among compilers.
  
 - Source: (motovec, fb)

The motovec directory should only contain source files derived from
Motovec.  The fb directory only contains source derived from X.

 - Random: (simdpack, colorspace, copy, dct, md5, math, utf, jpeg)

Don't add files to these directories.