llvmpipe clean-ups
Whitespace, formatting fixes. Wrap lines to 78 chars. Move var decls to first use. Add const qualifiers. Update comments, etc. No functional changes.
A batch of actual bug fixes will follow this work.
Whitespace, formatting fixes. Wrap lines to 78 chars. Move var decls to first use. Add const qualifiers. Update comments, etc. No functional changes.
A batch of actual bug fixes will follow this work.