GPU VSync: add timer based v-sync as a backup mechanism for when display goes to sleep.

GPU VSync: add timer based v-sync as a backup mechanism for when display goes to sleep.

When display goes to sleep GPU v-sync is no longer available - D3D
calls that waits for v-blank returns with
STATUS_GRAPHICS_PRESENT_OCCLUDED error.
This change adds a backup mechanism which posts a delayed task to
wait for the next expected v-sync.

BUG=467617
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2722073002
Cr-Commit-Position: refs/heads/master@{#454095}
Committed: https://chromium.googlesource.com/chromium/src/+/3fb710b34693d9e9917a3c60367bae9798845b1c

[stanisc, 2017-03-01 02:13:59]

Description was changed from

==========
Timer based sync as a backup mechanism for when display goes to sleep.

BUG=
==========

to

==========
Timer based sync as a backup mechanism for when display goes to sleep.

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
==========

[stanisc, 2017-03-01 02:17:28]

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

[commit-bot: I haz the power, 2017-03-01 02:18:21]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-01 03:19:19]

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

[commit-bot: I haz the power, 2017-03-01 03:19:20]

Dry run: This issue passed the CQ dry run.

[stanisc, 2017-03-01 19:02:29]

Description was changed from

==========
Timer based sync as a backup mechanism for when display goes to sleep.

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
==========

to

==========
GPU VSync: add timer based v-sync as a backup mechanism for when display goes to
sleep.

When display goes to sleep GPU v-sync is no longer available - D3D
calls that waits for v-blank returns with
STATUS_GRAPHICS_PRESENT_OCCLUDED error.
This change adds a backup mechanism which posts a delayed task to
wait for the next expected v-sync.

BUG=467617
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
==========

[stanisc, 2017-03-01 19:12:16]

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

[commit-bot: I haz the power, 2017-03-01 19:12:42]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[stanisc, 2017-03-01 19:12:52]

stanisc@chromium.org changed reviewers:
+ jbauman@chromium.org

[stanisc, 2017-03-01 19:12:52]

PTAL!

[commit-bot: I haz the power, 2017-03-01 20:20:54]

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

[commit-bot: I haz the power, 2017-03-01 20:20:55]

Dry run: This issue passed the CQ dry run.

[jbauman, 2017-03-01 22:33:17]

lgtm

[stanisc, 2017-03-01 22:42:23]

The CQ bit was checked by stanisc@chromium.org

[stanisc, 2017-03-01 22:42:23]

The patchset sent to the CQ was uploaded after l-g-t-m from jbauman@chromium.org
Link to the patchset: https://codereview.chromium.org/2722073002/#ps40001
(title: "Removed empty line")

[commit-bot: I haz the power, 2017-03-01 22:43:01]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-01 23:41:31]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1488408143430990,
"parent_rev": "d612b97722f4ae093f1b345e235a23b4c672acaa", "commit_rev":
"3fb710b34693d9e9917a3c60367bae9798845b1c"}

[commit-bot: I haz the power, 2017-03-01 23:42:12]

Description was changed from

==========
GPU VSync: add timer based v-sync as a backup mechanism for when display goes to
sleep.

When display goes to sleep GPU v-sync is no longer available - D3D
calls that waits for v-blank returns with
STATUS_GRAPHICS_PRESENT_OCCLUDED error.
This change adds a backup mechanism which posts a delayed task to
wait for the next expected v-sync.

BUG=467617
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
==========

to

==========
GPU VSync: add timer based v-sync as a backup mechanism for when display goes to
sleep.

When display goes to sleep GPU v-sync is no longer available - D3D
calls that waits for v-blank returns with
STATUS_GRAPHICS_PRESENT_OCCLUDED error.
This change adds a backup mechanism which posts a delayed task to
wait for the next expected v-sync.

BUG=467617
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2722073002
Cr-Commit-Position: refs/heads/master@{#454095}
Committed:
https://chromium.googlesource.com/chromium/src/+/3fb710b34693d9e9917a3c60367b...
==========

[commit-bot: I haz the power, 2017-03-01 23:42:13]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/chromium/src/+/3fb710b34693d9e9917a3c60367b...

[RE66, 2017-03-02 04:42:22]

On 2017/03/01 23:42:13, commit-bot: I haz the power wrote:
> Committed patchset #3 (id:40001) as
>
https://chromium.googlesource.com/chromium/src/+/3fb710b34693d9e9917a3c60367b...

I think you should wait for screen wakeup event and not busy waiting