Refactor 4f gradients using trait templates

Refactor 4f gradients using trait templates

Some 4f gradient housekeeping.

1) replace <DstPtrType, ColorProfile> specialization tuples with an enum covering all dest types
   (L32, S32, F16, F32)

2) group various template helpers into dest trait classes, specialized for each dest type

(2a - conflate current dst_swizzle and scale_for_dest ops into one load op)


R=reed@google.com,mtklein@google.com,herb@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1816883002

Committed: https://skia.googlesource.com/skia/+/dc6c9bf91c158e89cd9d5ef19dfbf1da98c598a6

[f(malita), 2016-03-20 16:06:26]

Description was changed from

==========
Refactor 4f gradients using trait templates

WIP

BUG=skia:
==========

to

==========
Refactor 4f gradients using trait templates

WIP

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

[f(malita), 2016-03-21 14:56:09]

Description was changed from

==========
Refactor 4f gradients using trait templates

WIP

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

to

==========
Refactor 4f gradients using trait templates

Some 4f gradient housekeeping.

1) replace <DstPtrType, ColorProfile> specialization tuples with an enum
covering all dest types
   (L32, S32, F16, F32)

2) group the various template helpers into dest trait classes, specialized for
each dest type


R=reed@google.com,mtklein@google.com,herb@google.com
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

[f(malita), 2016-03-21 14:56:09]

fmalita@chromium.org changed reviewers:
+ herb@google.com, mtklein@google.com, reed@google.com

[f(malita), 2016-03-21 15:14:10]

Description was changed from

==========
Refactor 4f gradients using trait templates

Some 4f gradient housekeeping.

1) replace <DstPtrType, ColorProfile> specialization tuples with an enum
covering all dest types
   (L32, S32, F16, F32)

2) group the various template helpers into dest trait classes, specialized for
each dest type


R=reed@google.com,mtklein@google.com,herb@google.com
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

to

==========
Refactor 4f gradients using trait templates

Some 4f gradient housekeeping.

1) replace <DstPtrType, ColorProfile> specialization tuples with an enum
covering all dest types
   (L32, S32, F16, F32)

2) group various template helpers into dest trait classes, specialized for each
dest type

(2a - conflate current dst_swizzle and scale_for_dest ops into one load op)


R=reed@google.com,mtklein@google.com,herb@google.com
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

[f(malita), 2016-03-21 15:14:43]

The CQ bit was checked by fmalita@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-03-21 15:14:54]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1816883002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1816883002/60001

[commit-bot: I haz the power, 2016-03-21 15:27:05]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-03-21 15:27:06]

Dry run: This issue passed the CQ dry run.

[reed1, 2016-03-21 16:31:08]

lgtm

[f(malita), 2016-03-21 20:15:57]

The CQ bit was checked by fmalita@chromium.org

[commit-bot: I haz the power, 2016-03-21 20:16:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1816883002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1816883002/60001

[commit-bot: I haz the power, 2016-03-21 20:16:54]

Description was changed from

==========
Refactor 4f gradients using trait templates

Some 4f gradient housekeeping.

1) replace <DstPtrType, ColorProfile> specialization tuples with an enum
covering all dest types
   (L32, S32, F16, F32)

2) group various template helpers into dest trait classes, specialized for each
dest type

(2a - conflate current dst_swizzle and scale_for_dest ops into one load op)


R=reed@google.com,mtklein@google.com,herb@google.com
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

to

==========
Refactor 4f gradients using trait templates

Some 4f gradient housekeeping.

1) replace <DstPtrType, ColorProfile> specialization tuples with an enum
covering all dest types
   (L32, S32, F16, F32)

2) group various template helpers into dest trait classes, specialized for each
dest type

(2a - conflate current dst_swizzle and scale_for_dest ops into one load op)


R=reed@google.com,mtklein@google.com,herb@google.com
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...

Committed:
https://skia.googlesource.com/skia/+/dc6c9bf91c158e89cd9d5ef19dfbf1da98c598a6
==========

[commit-bot: I haz the power, 2016-03-21 20:16:54]

Committed patchset #4 (id:60001) as
https://skia.googlesource.com/skia/+/dc6c9bf91c158e89cd9d5ef19dfbf1da98c598a6