[Mesa-dev] [Bug 102204] GL_ARB_buffer_storage crippled extension on r600, radeonsi and amdgpu Mesa drivers

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102204

--- Comment #6 from H4nN1baL <reizemberk at gmail.com> ---
Created attachment 138484
  --> https://bugs.freedesktop.org/attachment.cgi?id=138484&action=edit
glxinfo4

Upgrade to Mesa 18.1
(https://launchpad.net/~paulo-miguel-dias/+archive/ubuntu/mesa/)
I perceive the fixed bugs on 'auto' TearFree. Unfortunately, the issue with
buffer storage remains untouched.

The problem is very clear by setting the window resolution to 1280x960 or
above. And compare the difference in performance by using
'MESA_EXTENSION_OVERRIDE=-GL_ARB_buffer_storage' on mupen64plus or m64p.
Doesn't need to play ROMs to see the problem, even with 'm64p_test_rom.v64'
happens. (https://github.com/mupen64plus/mupen64plus-rom)

Other workaround is using this "patch" on GLideN64:
https://github.com/Jj0YzL5nvJ/GLideN64/commit/cc5d063c841fd53c26df4a1f14fa7ffdf10f1c18

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