tree 96c43a7166f27f1964d95ad3a9c9d414e87838a4
parent 8bd7cc7e88d979c801d69357fc2c34db3beb6023
author Ben Clayton <bclayton@google.com> 1617810851 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1617810851 +0000

hlsl/writer: Transpose matrices

HLSL's matrices are declared as <type>NxM, where N is the number of
rows and M is the number of columns. Despite HLSL's matrices being
column-major by default, the index operator and constructors actually
operate on row-vectors, where as WGSL operates on column vectors.
To simplify everything we use the transpose of the matrices.

This is the same approach taken by SPIRV-Cross.

Change-Id: I98860e11ff1a68132736980f694b2f68b633ef83
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/46873
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>