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Right now the implementation only checks if the internalformat is
supported or not. But that implementation is wrong, returning
unsupported for some internalformats. Additionally, checking if
the internalformat is supported or not is already done at mesa/main
before calling the driver hook, so this new check is not needed.
Acked-by: Eduardo Lima <elima@igalia.com>
Acked-by: Antia Puentes <apuentes@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
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This pname is tricky. The spec states that an internal format should be
returned, that is compatible with the passed internal format, and has
at least the same precision. There is no clear API to resolve this.
The closest we have (and what other drivers (i.e, NVidia proprietary) do,
is to return the same internal format given as parameter. But we validate
first that the passed internal format is supported by i965.
To check for support, we have the TextureFormatSupported map'. But
this map expects a 'mesa_format', which takes a format+typen. So, we must
first "come up" with a generic type that is suited for this internal format,
then get a mesa_format, and then do the validation.
The cleanest solution here is to add a method that does exactly what
the spec wants: a driver's preferred internal format from a given
internal format. But at this point we lack a clear view of what
defines this preference, and also there seems to be no API for it.
Reviewed-by: Dave Airlie <airlied@redhat.com>
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This effectively disables old QuerySamplesForFormat driver hook, since it is
never called by Mesa anymore.
v2: Call brw_query_samples_for_format() with a dummy buffer to calculate num
samples, to avoid modifying the original buffer.
Reviewed-by: Dave Airlie <airlied@redhat.com>
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Now that there is a dedicated source file for internal format queries, this
function belongs there.
Reviewed-by: Dave Airlie <airlied@redhat.com>
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By default, we call back the driver's hook fallback function that has generic
implementations for the all the queries.
Reviewed-by: Dave Airlie <airlied@redhat.com>
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