Mesa (master): glsl: Use more link_calculate_matrix_stride in lower_buffer_access

[Ian Romanick]

Module: Mesa
Branch: master
Commit: c18d8c61d6ecc108c1ef2012b37e9cf56da98664
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c18d8c61d6ecc108c1ef2012b37e9cf56da98664

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Wed Nov  1 16:40:32 2017 -0700

glsl: Use more link_calculate_matrix_stride in lower_buffer_access

I was going to squash this with the previous commit, but there's a lot
of churn in that commit.

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Thomas Helland <thomashelland90 at gmail.com>

---

 src/compiler/glsl/lower_buffer_access.cpp | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/src/compiler/glsl/lower_buffer_access.cpp b/src/compiler/glsl/lower_buffer_access.cpp
index 219e03e550..056fd26e0d 100644
--- a/src/compiler/glsl/lower_buffer_access.cpp
+++ b/src/compiler/glsl/lower_buffer_access.cpp
@@ -121,26 +121,8 @@ lower_buffer_access::emit_access(void *mem_ctx,
                         row_major, deref->type, packing,
                         writemask_for_size(col_deref->type->vector_elements));
          } else {
-            int size_mul;
-
-            /* std430 doesn't round up vec2 size to a vec4 size */
-            if (packing == GLSL_INTERFACE_PACKING_STD430 &&
-                deref->type->vector_elements == 2 &&
-                !deref->type->is_64bit()) {
-               size_mul = 8;
-            } else {
-               /* std140 always rounds the stride of arrays (and matrices) to a
-                * vec4, so matrices are always 16 between columns/rows. With
-                * doubles, they will be 32 apart when there are more than 2 rows.
-                *
-                * For both std140 and std430, if the member is a
-                * three-'component vector with components consuming N basic
-                * machine units, the base alignment is 4N. For vec4, base
-                * alignment is 4N.
-                */
-               size_mul = (deref->type->is_64bit() &&
-                           deref->type->vector_elements > 2) ? 32 : 16;
-            }
+            const int size_mul =
+               link_calculate_matrix_stride(deref->type, row_major, packing);
 
             emit_access(mem_ctx, is_write, col_deref, base_offset,
                         deref_offset + i * size_mul,