The phase instance counts are not necessarily redeclared so with
the separation of declarations and instructions we wouldn't know
which instance count applies to which phase.
Correct linkage requires examining the signature itself, it cannot
be reconstructed from declarations only since unused registers may
have been omitted from them.
We don't want to clutter the code or handicap new hardware for
the sake of ancient GPUs on which d3d1x won't ever be used,
much less be fully compliant, anyway.
We were mis-computing the size of the user-space vertex buffer in
some circumstances. This led to a failed assertion at u_inlines.h:222
when using the VMware svga driver.
For example, if we had arrays such as:
array[0]: element_offset = 12, stride = 24
array[1]: element_offset = 0, stride = 24
We'd mistakenly compute 'bytes' to be 12 bytes too small.
I've reorganized the function too. By time it's called, we know that
we've got interleaved arrays either all in one VBO or all in user memory
and the stride is equal for all arrays.
Move the code that lived inside the attr==0 test after the loop.
In the loop we compute the true vertex size. That size factors into the
pipe->redefine_user_buffer() call later. Using the vertex size instead
of array[0]'s element_offset fixes the failed assertion.
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Setting MaxIfDepth to UINT_MAX effectively means "don't lower anything."
Explicitly checking for this common case allows us to avoid walking the
IR, computing nesting levels, and so on.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Bryan Cain <bryancain3@gmail.com>
Commit 488fe51cf8 converted the EmitNoIfs
flag to MaxIfDepth, an unsigned integer saying "flatten if-statements
nested beyond this depth."
Unfortunately, i965 left this initialized to 0, which made ir_to_mesa
attempt to flatten all if-statements. We didn't notice right away
because we usually throw away ir_to_mesa's code in favor of the native
VS and FS backends...but this still creates a lot of unnecessary work.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
