New GM that exercises gamma-correctness in various parts of the pipeline.

New GM that exercises gamma-correctness in various parts of the pipeline.

Attempts to render 50% grey through many different techniques. Only the first one (black/white dither) is guaranteed to be correct. This serves as ground-truth for all the others (independent of whatever your display may or may not be doing when viewing the output of the GM).

Current tests:
- Texture bilerp
- Texture scale (ie mipmaps)
- Simple paint color
- Gradient
- A handful of Xfer modes
- 50% grey bitmaps, both linear and sRGB
- Bitmaps wrapped in shaders, which hits a different raster code path

TODO:
- Test coverage (rather than alpha)?
- Text, Blur, etc...?

Re-landing this without the blitter selection change, which may have caused a regression. Also updated the text color so it's legible against both black (SampleApp) and white (gold).

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1740213003

Committed: https://skia.googlesource.com/skia/+/e5824b90da4568544ecbf71ba5d690095b31307e

[Brian Osman, 2016-02-26 18:51:18]

Description was changed from

==========
New GM that exercises gamma-correctness in various parts of the pipeline.

Attempts to render 50% grey through many different techniques. Only the first
one (black/white dither) is guaranteed to be correct. This serves as
ground-truth for all the others (independent of whatever your display may or may
not be doing when viewing the output of the GM).

Current tests:
- Texture bilerp
- Texture scale (ie mipmaps)
- Simple paint color
- Gradient
- A handful of Xfer modes
- 50% grey bitmaps, both linear and sRGB
- Bitmaps wrapped in shaders, which hits a different raster code path

TODO:
- Test coverage (rather than alpha)?
- Text, Blur, etc...?

Re-landing this without the blitter selection change, which may have caused a
regression. Also updated the text color so it's legible against both black
(SampleApp) and white (gold).

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

to

==========
New GM that exercises gamma-correctness in various parts of the pipeline.

Attempts to render 50% grey through many different techniques. Only the first
one (black/white dither) is guaranteed to be correct. This serves as
ground-truth for all the others (independent of whatever your display may or may
not be doing when viewing the output of the GM).

Current tests:
- Texture bilerp
- Texture scale (ie mipmaps)
- Simple paint color
- Gradient
- A handful of Xfer modes
- 50% grey bitmaps, both linear and sRGB
- Bitmaps wrapped in shaders, which hits a different raster code path

TODO:
- Test coverage (rather than alpha)?
- Text, Blur, etc...?

Re-landing this without the blitter selection change, which may have caused a
regression. Also updated the text color so it's legible against both black
(SampleApp) and white (gold).

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

[Brian Osman, 2016-02-26 18:53:18]

brianosman@google.com changed reviewers:
+ bsalomon@google.com, mtklein@google.com, reed@google.com

[Brian Osman, 2016-02-26 18:53:19]

Omitting the blitter fix, so I can land the GM without breaking the MacMini bot.

[Brian Osman, 2016-02-26 19:40:27]

The CQ bit was checked by brianosman@google.com

[commit-bot: I haz the power, 2016-02-26 19:40:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1740213003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1740213003/20001

[commit-bot: I haz the power, 2016-02-26 19:40:34]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2016-02-27 01:40 UTC

[bsalomon, 2016-02-26 19:42:05]

On 2016/02/26 19:40:34, commit-bot: I haz the power wrote:
> Note for Reviewers:
> The CQ is waiting for an approval.
> If you believe that the CL is not ready yet, or if you would like to L-G-T-M
> with comments then please uncheck the CQ checkbox.
> 
> Waiting for LGTM from valid reviewer(s) till 2016-02-27 01:40 UTC

lgtm

[commit-bot: I haz the power, 2016-02-26 19:57:26]

Description was changed from

==========
New GM that exercises gamma-correctness in various parts of the pipeline.

Attempts to render 50% grey through many different techniques. Only the first
one (black/white dither) is guaranteed to be correct. This serves as
ground-truth for all the others (independent of whatever your display may or may
not be doing when viewing the output of the GM).

Current tests:
- Texture bilerp
- Texture scale (ie mipmaps)
- Simple paint color
- Gradient
- A handful of Xfer modes
- 50% grey bitmaps, both linear and sRGB
- Bitmaps wrapped in shaders, which hits a different raster code path

TODO:
- Test coverage (rather than alpha)?
- Text, Blur, etc...?

Re-landing this without the blitter selection change, which may have caused a
regression. Also updated the text color so it's legible against both black
(SampleApp) and white (gold).

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

to

==========
New GM that exercises gamma-correctness in various parts of the pipeline.

Attempts to render 50% grey through many different techniques. Only the first
one (black/white dither) is guaranteed to be correct. This serves as
ground-truth for all the others (independent of whatever your display may or may
not be doing when viewing the output of the GM).

Current tests:
- Texture bilerp
- Texture scale (ie mipmaps)
- Simple paint color
- Gradient
- A handful of Xfer modes
- 50% grey bitmaps, both linear and sRGB
- Bitmaps wrapped in shaders, which hits a different raster code path

TODO:
- Test coverage (rather than alpha)?
- Text, Blur, etc...?

Re-landing this without the blitter selection change, which may have caused a
regression. Also updated the text color so it's legible against both black
(SampleApp) and white (gold).

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

Committed:
https://skia.googlesource.com/skia/+/e5824b90da4568544ecbf71ba5d690095b31307e
==========

[commit-bot: I haz the power, 2016-02-26 19:57:27]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/e5824b90da4568544ecbf71ba5d690095b31307e