The CPU fallback for the compute renderer is contained in a separate
module for space reasons, but the CPU binaries must exactly match the
compute programs. However, there is no way to express that constraint
in go.mod.
This change generates hashes of every compute program so that a
following change can verify the CPU binaries match the programs.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
The recent changes to the compute shaders have fixed all errors
previously reported by fxc. Switch from dxc to fxc to target shader
model 5.0, supported by Direct3D 11.
Because we know dxc must be available, always build compute shaders even
though the result is not yet used.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Apparently, exec.Command.Output waits for winepath's grandchildren to
exit. However, that may take several seconds if wineserver was started
by winepath.
exec.Command.StdoutPipe works better, in that it is closed when the
winepath process exits.
A similar change may help run the fxc.exe tool under Wine, if that ever
turns out to have the same problem.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Wine tools can be slow to run, so it makes sense to batch their use.
Fortunately, winepath supports resolving multiple paths in one
execution.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Literal strings are a more compact than literal byte slices. A future
change will switch to go:embed to save even more space.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
There are no longer any importers of package backend outside of
gioui.org/gpu. Move it internally, and rename it to the slightly more
specific "driver" while we're at it.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
The convert program is only used by the shaders from package gpu, and
we're about to make the backend package imported by the program internal
to package gpu. Move the converter below package gpu.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Elias Naur