On Mon, 27 Nov 2023 20:22:40 GMT, Thorsten Fischer <d...@openjdk.org> wrote:
>> Hi,
>>
>> I did open the bug report. Some notes to this PR:
>>
>> My colleagues and I are able to reproduce this bug regularly, even though it
>> takes sometimes up to 3 or 4 weeks until the D3DERR_DEVICEHUNG error shows
>> up. We are currently evaluating two versions of fixes, but until now we do
>> not have any results. I will post them as soon as I got them.
>>
>> Version 1 (this version): Based on the observation, that the
>> TestCooperativeLevel/CheckDeviceState method returns D3D_OK again after
>> about 20 - 60 seconds, the reinitialize is called after the first time the
>> state is returning D3D_OK. The 'isHung' flag stores the information until
>> then.
>>
>> Version 2: calls reinitialize directly after D3DERR_DEVICEHUNG has been
>> returned. Basically
>> if (hr == D3DERR_DEVICEREMOVED || hr == D3DERR_DEVICEHUNG ) { .. }
>>
>> I did not modify the validatePresent method, as for our workaround (see
>> ticket) it was not necessary. At least the native call swapchain->present
>> dows not return that error code
>> (https://learn.microsoft.com/en-us/windows/win32/api/d3d9/nf-d3d9-idirect3dswapchain9-present).
>> I did not look decisively into all the native calls behind
>> D3DRTTexture#readPixels.
>>
>> As I said I will post the results (prism.verbose output) for the 2 versions
>> later as a base for discussions.
>
> Thorsten Fischer has updated the pull request incrementally with one
> additional commit since the last revision:
>
> Updated copyright year in D3DContext.cc
Marked as reviewed by mstrauss (Committer).
-------------
PR Review: https://git.openjdk.org/jfx/pull/1199#pullrequestreview-1751298390
