cc: make partially-resident textures use 1 - y, not h - y.

cc: make partially-resident textures use 1 - y, not h - y.

In Skia, partially-resident textures of "flipped" textures
occupy texcoords 1 to 1 - h (in Y). In cc, they occupy h to
0. In order to ease interop, we should pick a convention and unify.

I chose the Skia model, since coords can flipped with a
simple 1 - y, which doesn't require knowing the height
of the active region. I also added a new test case for
masks, since the math is a little hinky.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Committed: https://crrev.com/fbfb39d126f7a6e24f369c950954298949d718a3
Cr-Commit-Position: refs/heads/master@{#371930}

[Stephen White, 2016-01-27 19:05:20]

Description was changed from

==========
cc: make partially-resident textures use 1 - y, not h - y.
==========

to

==========
cc: make partially-resident textures use 1 - y, not h - y.
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

[Stephen White, 2016-01-27 22:36:47]

Description was changed from

==========
cc: make partially-resident textures use 1 - y, not h - y.
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

to

==========
cc: make partially-resident textures use 1 - y, not h - y.

In Skia, partially-resident textures of "flipped" textures
occupy texcoords 1 to 1 - h (in Y). In cc, they occupy h to 
0. In order to ease interop, we should pick a convention and unify.

I chose the Skia model, since coords can flipped with a 
simple 1 - y, which doesn't require knowing the height
of the active region.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

[Stephen White, 2016-01-27 22:36:47]

senorblanco@chromium.org changed reviewers:
+ enne@chromium.org

[Stephen White, 2016-01-27 22:38:16]

Description was changed from

==========
cc: make partially-resident textures use 1 - y, not h - y.

In Skia, partially-resident textures of "flipped" textures
occupy texcoords 1 to 1 - h (in Y). In cc, they occupy h to 
0. In order to ease interop, we should pick a convention and unify.

I chose the Skia model, since coords can flipped with a 
simple 1 - y, which doesn't require knowing the height
of the active region.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

to

==========
cc: make partially-resident textures use 1 - y, not h - y.

In Skia, partially-resident textures of "flipped" textures
occupy texcoords 1 to 1 - h (in Y). In cc, they occupy h to 
0. In order to ease interop, we should pick a convention and unify.

I chose the Skia model, since coords can flipped with a 
simple 1 - y, which doesn't require knowing the height
of the active region. I also added a new test case for 
masks, since the math is a little hinky.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

[Stephen White, 2016-01-27 22:38:40]

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

[Stephen White, 2016-01-27 22:38:49]

enne@: PTAL. Thanks!

[commit-bot: I haz the power, 2016-01-27 22:40:03]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1643653002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1643653002/20001

[enne (OOO), 2016-01-27 23:04:37]

lgtm, thanks!

[Stephen White, 2016-01-27 23:10:17]

The CQ bit was unchecked by senorblanco@chromium.org

[Stephen White, 2016-01-27 23:10:18]

The CQ bit was checked by senorblanco@chromium.org

[commit-bot: I haz the power, 2016-01-27 23:10:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1643653002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1643653002/20001

[commit-bot: I haz the power, 2016-01-28 00:24:21]

Description was changed from

==========
cc: make partially-resident textures use 1 - y, not h - y.

In Skia, partially-resident textures of "flipped" textures
occupy texcoords 1 to 1 - h (in Y). In cc, they occupy h to 
0. In order to ease interop, we should pick a convention and unify.

I chose the Skia model, since coords can flipped with a 
simple 1 - y, which doesn't require knowing the height
of the active region. I also added a new test case for 
masks, since the math is a little hinky.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

to

==========
cc: make partially-resident textures use 1 - y, not h - y.

In Skia, partially-resident textures of "flipped" textures
occupy texcoords 1 to 1 - h (in Y). In cc, they occupy h to 
0. In order to ease interop, we should pick a convention and unify.

I chose the Skia model, since coords can flipped with a 
simple 1 - y, which doesn't require knowing the height
of the active region. I also added a new test case for 
masks, since the math is a little hinky.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

[commit-bot: I haz the power, 2016-01-28 00:24:22]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-01-28 00:26:28]

Description was changed from

==========
cc: make partially-resident textures use 1 - y, not h - y.

In Skia, partially-resident textures of "flipped" textures
occupy texcoords 1 to 1 - h (in Y). In cc, they occupy h to 
0. In order to ease interop, we should pick a convention and unify.

I chose the Skia model, since coords can flipped with a 
simple 1 - y, which doesn't require knowing the height
of the active region. I also added a new test case for 
masks, since the math is a little hinky.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

to

==========
cc: make partially-resident textures use 1 - y, not h - y.

In Skia, partially-resident textures of "flipped" textures
occupy texcoords 1 to 1 - h (in Y). In cc, they occupy h to
0. In order to ease interop, we should pick a convention and unify.

I chose the Skia model, since coords can flipped with a
simple 1 - y, which doesn't require knowing the height
of the active region. I also added a new test case for
masks, since the math is a little hinky.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Committed: https://crrev.com/fbfb39d126f7a6e24f369c950954298949d718a3
Cr-Commit-Position: refs/heads/master@{#371930}
==========

[commit-bot: I haz the power, 2016-01-28 00:26:29]

Patchset 2 (id:??) landed as
https://crrev.com/fbfb39d126f7a6e24f369c950954298949d718a3
Cr-Commit-Position: refs/heads/master@{#371930}