The Invariant output holds information about final post blended color and other
general information like will it blend with dst. Having this new struct allowed
me to also remove some functions that were previously querying subsets of the
invariant output.
BUG=skia:
Review URL: https://codereview.chromium.org/814933002
This is needed since clearColorStages is being changed to ignore color input. For RGB coverage,
we want to clear all the color stages (since we know the final output color), but we don't want
to ignore the color input since it is needed.
In future we will change this so the XP stores the color internally and thus can tell the GP to
simiply ignore color.
BUG=skia:
Review URL: https://codereview.chromium.org/791933006
This includes:
-Having an actual XP stage at the end of the gl pipeline.
-All Blending work is handled by XP until actually setting GL blend states
-GLPrograms test to test XP
BUG=skia:
Review URL: https://codereview.chromium.org/764643004
Reason for revert:
break many gm's
Original issue's description:
> Make all blending up to GrOptDrawState be handled by the xp/xp factory.
>
> In this cl the blending information is extracted for the xp and stored in the ODS
> which is then used as it currently is. In the follow up cl, an XP backend will be added
> and at that point all blending work will take place inside XP's.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/7c66342a399b529634bed0fabfaa562db2c0dbd4TBR=bsalomon@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/766653008
In this cl the blending information is extracted for the xp and stored in the ODS
which is then used as it currently is. In the follow up cl, an XP backend will be added
and at that point all blending work will take place inside XP's.
BUG=skia:
Review URL: https://codereview.chromium.org/759713002
