Commit Graph

7 Commits

Author SHA1 Message Date
Brian Osman
82ebe04caf Reland "Add SkColorSpace factory from 3x3 row-major gamut and transfer function"
Moved named common transfer functions and gamuts to constexpr values in
SkColorSpace.h, in SkNamedTransferFn and SkNamedGamut namespaces.

Converted nearly all SkColorSpace::MakeRGB calls within Skia to use the
new factory with the named values. Multiple clients want a way to
extract named transfer function and gamut - this still doesn't provide
that, but this may be a better path forward for honestly advertising how
SkColorSpace works internally.

Originally landed as:
https://skia.googlesource.com/skia/+/a9549ab31630fc244094e6f1692371cbaf87f666

Re-landing with a new serialization format, but maintaining ability to
load old serialized color spaces, for SKP compatibility.

Bug: skia:
Change-Id: Ib84a6e1cd5d7d9816175773fdbaff2ca32658667
Reviewed-on: https://skia-review.googlesource.com/c/181176
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2019-01-05 20:06:51 +00:00
Brian Osman
d4c7458f64 Revert "Add SkColorSpace factory from 3x3 row-major gamut and transfer function"
This reverts commit a9549ab316.

Reason for revert: SKPs changed?

Original change's description:
> Add SkColorSpace factory from 3x3 row-major gamut and transfer function
> 
> Moved named common transfer functions and gamuts to constexpr values in
> SkColorSpace.h, in SkNamedTransferFn and SkNamedGamut namespaces.
> 
> Converted nearly all SkColorSpace::MakeRGB calls within Skia to use the
> new factory with the named values. Multiple clients want a way to
> extract named transfer function and gamut - this still doesn't provide
> that, but this may be a better path forward for honestly advertising how
> SkColorSpace works internally.
> 
> Bug: skia:
> Change-Id: I9296d67e8f0dab5ceb49869cb3ba24e98a05f3c4
> Reviewed-on: https://skia-review.googlesource.com/c/180360
> Reviewed-by: Mike Klein <mtklein@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>

TBR=mtklein@google.com,brianosman@google.com,reed@google.com

Change-Id: Ie888f877b3c1dba33e1a8c0f5fa92594628de7fb
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/181300
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2019-01-04 17:07:48 +00:00
Brian Osman
a9549ab316 Add SkColorSpace factory from 3x3 row-major gamut and transfer function
Moved named common transfer functions and gamuts to constexpr values in
SkColorSpace.h, in SkNamedTransferFn and SkNamedGamut namespaces.

Converted nearly all SkColorSpace::MakeRGB calls within Skia to use the
new factory with the named values. Multiple clients want a way to
extract named transfer function and gamut - this still doesn't provide
that, but this may be a better path forward for honestly advertising how
SkColorSpace works internally.

Bug: skia:
Change-Id: I9296d67e8f0dab5ceb49869cb3ba24e98a05f3c4
Reviewed-on: https://skia-review.googlesource.com/c/180360
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2019-01-04 14:32:06 +00:00
Mike Klein
8f3d36c97d add dstAT param to xform steps
All the existing calls are ported over, and new tests cover
unpremul output. (Opaque output is an impossible request.)

Change-Id: I744d640763cf74c368d3b3aba4a262c8fd9f7a01
Reviewed-on: https://skia-review.googlesource.com/147100
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
2018-08-14 16:26:53 +00:00
Brian Osman
f018b7d607 SkColorSpaceXformSteps improvements and tests
Added some helper functions and put the booleans in a nested struct
(this is motivated by upcoming changes). Added a unit test of steps
against skcms, with round-tripping in both combinations.

Change-Id: Iea3d60cd52edb5259b5576b1422ed6f856cde815
Reviewed-on: https://skia-review.googlesource.com/134660
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2018-06-14 11:30:47 +00:00
Mike Klein
cdbec8f197 remove bit, srgbnl config in DM
We're not going to need the bit.

I've rewritten "esrgb" and "srgbnl" to express themselves the way I'd
like them to work.  Their images are supressed in Gold already.

Change-Id: I6da58cc75dcb998cbfcf9a8f65de31c030adb494
Reviewed-on: https://skia-review.googlesource.com/130506
Reviewed-by: Brian Osman <brianosman@google.com>
2018-05-29 19:14:03 +00:00
Mike Klein
ce4cf72e34 non-linear blending first steps
Code:
  - Add a non-linear blending bit and makeNonlinearBlending()
    to SkColorSpace
  - remove enough F16=linear checks to make it possible to
    create surfaces and encode pngs with nonlinear F16

Testing:
  - add "esrgb" software config to DM, run it
  - add "srgbnl" software config, run it
  - deemphasize importance of "srgb" config on bots
  - update unit tests to reflect relaxed F16 constraints
  - add a new unit test file with _really_ basic tests,
    and a new unit test that's not working yet

Bug: skia:7942

Change-Id: I8ac042bdf9f3d791765393b68fd9256375184d83
Reviewed-on: https://skia-review.googlesource.com/127325
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
2018-05-10 18:26:22 +00:00