Add interesting features to visualize_color_gamut

Add interesting features to visualize_color_gamut

(1) Draw triangles onto a D50 color gamut so they are
    actually in the correct place.
(2) Add options to display canonical sRGB and Adobe RGB
    gamuts.
(3) Label the R, G, and B points of the color gamut.
(4) Decode and reencode the input image without color
    correction, so we can compare to the corrected version.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2017153002

Committed: https://skia.googlesource.com/skia/+/97205a4b419e0b7b1864db1945c4098c01874bbc

[msarett, 2016-05-27 18:33:12]

Description was changed from

==========
Add check boxes to display canonical sRGB and Adobe RGB gamuts

Also adding a few other labels and features.

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

to

==========
Add check boxes to display canonical sRGB and Adobe RGB gamuts

Also adding a few other labels and features.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2017153002
==========

[msarett, 2016-05-27 19:50:11]

Patchset #2 (id:20001) has been deleted

[msarett, 2016-05-27 19:53:47]

Description was changed from

==========
Add check boxes to display canonical sRGB and Adobe RGB gamuts

Also adding a few other labels and features.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2017153002
==========

to

==========
Add interesting features to visualize_color_gamut

(1) Draw triangles onto a D50 color gamut so they are
    actually in the correct place.
(2) Add options to display canonical sRGB and Adobe RGB
    gamuts.
(3) Label the R, G, and B points of the color gamut.
(4) Decode and reencode the input image without color
    correction, so we can compare to the corrected version.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2017153002
==========

[msarett, 2016-05-27 19:54:26]

msarett@google.com changed reviewers:
+ jcgregorio@google.com

[jcgregorio, 2016-05-27 20:00:38]

https://codereview.chromium.org/2017153002/diff/40001/tools/visualize_color_g...
File tools/visualize_color_gamut.cpp (right):

https://codereview.chromium.org/2017153002/diff/40001/tools/visualize_color_g...
tools/visualize_color_gamut.cpp:187: SkString path(input);
The output path for the uncorrected input image should be set via flag. If the
flag isn't set then the image shouldn't be written, or use the current code as
the default path, whatever makes more sense.

[msarett, 2016-05-27 20:30:59]

https://codereview.chromium.org/2017153002/diff/40001/tools/visualize_color_g...
File tools/visualize_color_gamut.cpp (right):

https://codereview.chromium.org/2017153002/diff/40001/tools/visualize_color_g...
tools/visualize_color_gamut.cpp:187: SkString path(input);
On 2016/05/27 20:00:38, jcgregorio wrote:
> The output path for the uncorrected input image should be set via flag. If the
> flag isn't set then the image shouldn't be written, or use the current code as
> the default path, whatever makes more sense.

Ok I've added the flag.  There is no default, so we won't waste time reencoding
the image unless it is requested.

[jcgregorio, 2016-05-27 20:32:48]

lgtm

[msarett, 2016-05-27 20:33:41]

The CQ bit was checked by msarett@google.com

[commit-bot: I haz the power, 2016-05-27 20:33:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2017153002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2017153002/60001

[commit-bot: I haz the power, 2016-05-27 20:40:34]

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

[commit-bot: I haz the power, 2016-05-27 20:40:35]

Try jobs failed on following builders:
  Build-Win-MSVC-x86_64-Debug-Trybot on client.skia.compile (JOB_FAILED,
http://build.chromium.org/p/client.skia.compile/builders/Build-Win-MSVC-x86_6...)

[msarett, 2016-05-27 20:42:28]

The CQ bit was checked by msarett@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-05-27 20:44:03]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2017153002/80001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2017153002/80001

[commit-bot: I haz the power, 2016-05-27 20:56:54]

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

[commit-bot: I haz the power, 2016-05-27 20:56:55]

Dry run: This issue passed the CQ dry run.

[msarett, 2016-05-27 20:57:31]

The CQ bit was checked by msarett@google.com

[msarett, 2016-05-27 20:57:31]

The patchset sent to the CQ was uploaded after l-g-t-m from
jcgregorio@google.com
Link to the patchset: https://codereview.chromium.org/2017153002/#ps80001
(title: "Win compile fix")

[commit-bot: I haz the power, 2016-05-27 20:57:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2017153002/80001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2017153002/80001

[commit-bot: I haz the power, 2016-05-27 21:01:06]

Description was changed from

==========
Add interesting features to visualize_color_gamut

(1) Draw triangles onto a D50 color gamut so they are
    actually in the correct place.
(2) Add options to display canonical sRGB and Adobe RGB
    gamuts.
(3) Label the R, G, and B points of the color gamut.
(4) Decode and reencode the input image without color
    correction, so we can compare to the corrected version.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2017153002
==========

to

==========
Add interesting features to visualize_color_gamut

(1) Draw triangles onto a D50 color gamut so they are
    actually in the correct place.
(2) Add options to display canonical sRGB and Adobe RGB
    gamuts.
(3) Label the R, G, and B points of the color gamut.
(4) Decode and reencode the input image without color
    correction, so we can compare to the corrected version.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2017153002

Committed:
https://skia.googlesource.com/skia/+/97205a4b419e0b7b1864db1945c4098c01874bbc
==========

[commit-bot: I haz the power, 2016-05-27 21:01:07]

Committed patchset #4 (id:80001) as
https://skia.googlesource.com/skia/+/97205a4b419e0b7b1864db1945c4098c01874bbc