This is what we want in practice.
The only change is in PIPE_FORMAT_R8SG8SB8UX8U_NORM, which no longer is
considered an array format.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
inv_swizzles is used in lp_tile_soa.py to create lp_tile_soa.c, we overwrite swizzles if they are already set.
This results in the i8 format getting alpha instead of red, and the l8 format
getting blue instead of red.
Fixes fbo-alphatest-formats, fbo-alphatest-formats ARB_texture_float,
and fbo-alphatest-formats EXT_texture_snorm on llvmpipe.
Signed-off-by: Dave Airlie <airlied@redhat.com>
This add support for unsigned/signed integer types via adding a 'pure' bit
in the format description table. It adds 4 new u_format get/put hooks,
for get/put uint and get/put sint so that accessors can get native access
to the integer bits. This is used to avoid precision loss via float converting
paths.
It doesn't add any float fetchers for these types at the moment, GL doesn't
require float fetching from these types and I expect we'll introduce a lot
of hidden bugs if we start allowing such conversions without an API mandating
it.
It adds all formats from EXT_texture_integer and EXT_texture_rg.
0 regressions on llvmpipe here with this.
(there is some more follow on code in my gallium-int-work branch, bringing
softpipe and mesa to a pretty integer clean state)
v2: fixup python generator to get signed->unsigned and unsigned->signed
fetches working.
Signed-off-by: Dave Airlie <airlied@redhat.com>
they won't generate any useful conversion code for some of the new formats
but at least don't assert. Also needed some more hacks so they don't generate
code for some of the new formats, as gcc was not impressed.
Also declare unused channels as void, and change the scripts to not fail if
the first channel happened to be unused.
Needs serious fixing.
This has several advantages over the u_
- not hand written
- no intermediate memcpy of raw pixels
- supports 4 ubytes in addition to floats
- no need to pass a pipe_transfer
It also has (hopefully temporary) limitations:
- no support for YUV
- no support for SRGB
