[Intel-gfx] [PATCH] intel: Allocate swrast buffer (#54782)

[Eric Anholt]

Frederic Plourde <frederic.plourde at collabora.co.uk> writes:

> From: Tomeu Vizoso <tomeu.vizoso at collabora.com>
>
> When i915 driver decides to fallback to software, the texture's Map
> gets replaced by its Buffer attribute, which is NULL because the 
> texture hasn't been allocated by swrast yet.
>
> The attached patch makes sure that the image buffer for the texture 
> gets allocated

Huh?  If you just allocate some hunk of memory and use that, then the
software rendering won't actually show up mixed with your hardware
rendering.
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