Drawing now supports defining both the source and destination
bounds, which is equivalent to clipping and scaling an image.
LGTM=nigeltao
R=nigeltao, crawshaw
CC=adg, golang-codereviews
https://golang.org/cl/144480043
Split constants out into their own file. Hide the
values in named types in a struct, so that when
using the gldebug tag we can attach extra
information (such as the name of a uniform and
attribute).
LGTM=nigeltao
R=golang-codereviews, bryanturley, nigeltao
CC=davidday, golang-codereviews
https://golang.org/cl/137630043
No tests yet. I am working on a gltest package that can
create a windowless context on a variety of platforms for
testing GL code, but given current priorities it is a
couple of weeks away.
LGTM=nigeltao
R=nigeltao
CC=golang-codereviews
https://golang.org/cl/135450043
