[Bf-blender-cvs] [55d14210ccc] master: Raised AMD CEDAR on Linux from unsupported to limited support

[Jeroen Bakker]

Commit: 55d14210cccc7a3dae98787200a6dc3649462bba
Author: Jeroen Bakker
Date:   Wed Dec 9 12:10:32 2020 +0100
Branches: master
https://developer.blender.org/rB55d14210cccc7a3dae98787200a6dc3649462bba

Raised AMD CEDAR on Linux from unsupported to limited support

There is a workaround available by setting the environment variable `R600_DEBUG=nosb`.

===================================================================

M	source/blender/gpu/opengl/gl_backend.cc

===================================================================

diff --git a/source/blender/gpu/opengl/gl_backend.cc b/source/blender/gpu/opengl/gl_backend.cc
index 7e948149a7f..8f3d1ffabaa 100644
--- a/source/blender/gpu/opengl/gl_backend.cc
+++ b/source/blender/gpu/opengl/gl_backend.cc
@@ -152,8 +152,10 @@ void GLBackend::platform_init()
       }
     }
     if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_ANY)) {
+      /* Platform seems to work when SB backend is disabled. This can be done
+       * by adding the environment variable `R600_DEBUG=nosb`. */
       if (strstr(renderer, "AMD CEDAR")) {
-        GPG.support_level = GPU_SUPPORT_LEVEL_UNSUPPORTED;
+        GPG.support_level = GPU_SUPPORT_LEVEL_LIMITED;
       }
     }
   }