When Ivy Bridge introduced array multisampling, someone made the decision
to do lots of stuff throughout the driver in terms of physical array layers
rather than logical array layers. In ISL, we use logical array layers most
of the time and it really makes no sense to use physical array layers in
the blorp API. Every time someone passes physical array layers into blorp
for an array multisampled surface, they're always divisible by the number
of samples and we divide right away.
Eventually, I'd like to rework most of the GL driver internals to use
logical array layers but that's going to be a big project and will probably
happen as part of the ISL conversion. For now, we'll do the conversion in
brw_blorp and let blorp just use the logical layers.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This should be more compact than the enum isl_channel_select[4] that we
were using before. It's also very convenient because we already had such a
structure in the Vulkan driver we just needed to pull it over.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
At this point, blorp is completely driver agnostic and can be safely moved
into its own folder. Soon, we hope to start using it for doing blits in
the Vulkan driver.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
