If this method is used to clear a view with a floating point format,
we need to create a compatible view with an integer format in order
to clear the resource with the correct value. Fixes some calls to
this function in Rise of the Tomb Raider and other games.
Reduces lock contention and slightly improves performance in games
that rely heavily on the buffer renaming mechanism if the lock
protecting the original free list was contested.
This is required for resource mapping on deferred contexts.
May also fix a potential synchronization issue where a buffer
could be mapped multiple times before the CS thread would mark
the physical buffer as used, which would result in invalid data.
This is the first step to optimizing buffer updates for applications
that frequently invalidate buffers. The goal is to reduce the number
of buffer allocations per frame and reduce the cost of invalidation.
Improves performance in applications that use UpdateSubresources
to frequently update constant buffers, such as Unigine Heaven,
Unigine Valley and Homefront.
Fixes a few bottlenecks that were encountered in the Cascading Shadow
Maps demo from the Microsoft SDK. Performance is now slightly better
than wined3d with CSMT, MESA_NO_ERROR and mesa_glthread enabled.
