| Bug ID | 111010 |
|---|---|
| Summary | Cemu Shader Cache Corruption Displaying Solid Color After com= mit 11e16ca7ce0 |
| Product | Mesa |
| Version | git |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | felix.adrianto@gmail.com |
| QA Contact | dri-devel@lists.freedesktop.org |
Created attachment 14465=
1 [details]
shader cache corruption
Background:
Using Cemu emulator with shader cache functionality breaks after commit
11e16ca7ce0. Screen display only solid colors with very low fps.
System:
AMD Ryzen 2600
RX580
Linux 5.0.9, amdgpu, mesa master
How to reproduce the issue:
1. Run Cemu, enable shader cache functionality
2. Play a game then let shader cahce be generated. Game can be played norma=
lly
and shader can be built normally. No graphical issue is found at this stage.
3. Quit Cemu
4. Play the same game again utilizing the generated shader cache
5. Game display shows flickering solid colors as shown in this ticket
attachment.=20
Expected result:
Playing the same game with previously generated shader cache should display=
the
correct graphic instead of flickering solid colors.
Can you address this issue?
Thanks for the top quality bug report! Just to be clear before 11e16ca7ce0 Cemu wasn't actually making use of the cache as it was disabled for core profiles (which Cemu uses). Enabling it uncovered a bug with the interaction of our cache implementation and the separate shader objects extension. Anyway the following patch should fix the issue. https://patchwo= rk.freedesktop.org/patch/315016/
(In reply to Timothy Arceri from comment #1) > Thanks for the top quality bug report! >=20 > Just to be clear before 11e16ca7ce0 Cemu wasn't actually making use of= the > cache as it was disabled for core profiles (which Cemu uses). Sorry that should have been "it was disabled for compatibility profile= s"
I applied your patch to the latest mesa git-2042f22e28. Your p= atch fixed the issue. You can close this bug. Thank for responding so quickly.
| What | Removed | Added |
|---|---|---|
| Resolution | --- | FIXED |
| Status | NEW | RESOLVED |
Fixed by: commit 3043908ccb9c7030add1f34f9a947a787949a399 Author: Timothy Arceri <tar= ceri@itsqueeze.com> Date: Mon Jul 1 12:25:19 2019 +1000 mesa: save/restore SSO flag when using ARB_get_program_binary Without this the restored program will fail the pipeline validation checks when we attempt to use an SSO program. Fixes: c20fd744fef1 ("mesa: Add Mesa ARB_get_program_binary helper functions") Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.= cgi?id=3D111010