Re: [PATCH 0/1] MR1307: wined3d: Use the chunk allocator for GL element array buffers.

[Henri Verbeet (＠hverbeet)]

> +        case GL_ELEMENT_ARRAY_BUFFER:
> +            /* There is no way to specify an element array buffer offset for
> +             * indirect draws in OpenGL. */
> +            return device_gl->d.cs->c.state->feature_level < WINED3D_FEATURE_LEVEL_11;

In principle this would be a nice way to avoid the issue with indirect draws, but there are two issues with this:

- This code can get called from outside the CS thread, so accessing the CS state isn't necessarily safe.
  - Direct3D 11.1's SwapDeviceContextState() can end up changing the current feature level, without resources like index buffers needing to be recreated.