When CheckDeviceStats returns S_PRESENT_MODE_CHANGED, reset display mode and retest for device lost.

When CheckDeviceStats returns S_PRESENT_MODE_CHANGED, reset display mode and retest for device lost.

Unless the display mode is reset, CheckDeviceLost can keep returning S_PRESENT_MODE_CHANGED, potentially masking a device lost on account of a GPU hang, causing ANGLE to fail to report context lost.
Committed: https://code.google.com/p/angleproject/source/detail?r=1986

[apatrick1, 2013-02-27 22:07:57]

This seems to be a better way to deal with S_PRESENT_MODE_CHANGED. It doesn't
treat every S_PRESENT_MODE_CHANGED as device lost like last time.

Should be easier to merge to the dx11proto branch as well.

Thanks, Al

[federalcarlin, 2013-02-27 23:18:36]

reset display mode and retest for device lost.

[apatrick1, 2013-03-04 20:31:33]

Hi. I'm running out of time to land this in time for M26. Is it okay?

[nicolas, 2013-03-04 20:40:06]

I don't think testDeviceResettable() should do the Reset. That could cause
glGetGraphicsResetStatusEXT() to never return GL_NO_ERROR.

[apatrick1, 2013-03-04 20:50:39]

Good point. It still works without the change to testDeviceResettable.

[nicolas, 2013-03-04 20:53:18]

Looks ok to me now.