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# Date Author Comment
9ea800c6 06/28/2018 11:30 PM Leszek Koltunski

Minor.

8ac0ed3e 06/28/2018 11:21 PM Leszek Koltunski

Correct the way we delay FBOs in DistortedScreen.

b3d1b670 06/27/2018 11:52 PM Leszek Koltunski

Minor.

1f19fba8 06/27/2018 11:51 PM Leszek Koltunski

Port the Mali flash fix to the OIT branch.

6672d895 06/27/2018 01:31 PM Leszek Koltunski

I am pretty sure this time the flashing issues on Mali T880 r12 driver are finally fixed.

The fix: a queue of FBOs render to, just like before, but this time in DistortedScreen we blit not the current FBO, but the one computed several frames ago.

This of course introduces a delay and uses more memory, but it appears to work and does not seem to have any effects on speed.

586b5fa1 06/27/2018 01:30 PM Leszek Koltunski

Port another commit from master.

I spoke too soon, the ARM Mali flashing is of course not fixed yet. The previous commit fixed Triblur, but the bug is still reproducible elsewhere (only in the 'postprocessed' apps though).

This commit introduces a circular queue in case of the postprocessing FBOs - with little success though.

8ebbc730 06/27/2018 01:16 PM Leszek Koltunski

Port a commit from the master branch.

Finally properly fix the flashing on ARM Mali T880 GPU.

The flashing is caused by a 'full pipeline flush' (see DarkPhoton, https://www.opengl.org/discussion_boards/showthread.php/200754-Flashes-on-ARM-Mali?p=1291679&viewfull=1#post1291679 ). In order to combat it, first introduce the possibility that a single DistortedOutputSurface is backed up by more than one FBO. Then make DistortedScreen be derived from DistortedFramebuffer (which itself is derived from DistortedOutputSurface) and make it contain 3 FBOs, render to them in a circular queue fashion, and blit from a given FBO to the system FBO. The 'more than 1 intermediate FBO' queue prevents the pipeline flush....

baa3989b 06/24/2018 12:07 AM Leszek Koltunski

Revert last changes to the postprocessing FBO.

This reverts commit 2dbed690bdbee80d9bfb22c800073855eb5d0946.

85bfeb7a 06/13/2018 09:33 PM Leszek Koltunski

Try and avoid re-sorting the children by buckets (if we can!). This makes change in rendering order in the 'Transparency' app actually work.

2dbed690 06/08/2018 02:03 PM Leszek Koltunski

In an attempt to contain the flashes on Mali GPU, re-structure the post-processing FBOs from 1 FBO with 2 color attachments + combined depth-stencil to 2 separate FBOs sharing a depth-stencil texture.

Result: this appears to make the flashes slightly worse.

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