This makes a lot of lines shorter.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14455>
When the determinant that we use for calculating triangle area
is NaN, it's not possible to decide the facing of the triangle.
This can happen when a coordinate of one of the triangle's vertices
is INFINITY. It's better to just accept these triangles in the shader
and let the PA deal with them.
Let's do the same for +/- Infinity too.
Though we haven't seen this yet, it may be troublesome as well.
Fixes: 651a3da1b5Closes: #5470
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13299>
The algorithms were originally implemented by Marek Olšák,
hence the copyright to AMD.
This commit just ports the LLVM based implementation to NIR,
using the new intrinsics added earlier.
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10525>
