diff options
| -rw-r--r-- | src/glsl/lower_ubo_reference.cpp | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/glsl/lower_ubo_reference.cpp b/src/glsl/lower_ubo_reference.cpp index 60094f13a18..2890d3e74d8 100644 --- a/src/glsl/lower_ubo_reference.cpp +++ b/src/glsl/lower_ubo_reference.cpp @@ -355,10 +355,17 @@ lower_ubo_reference_visitor::emit_ubo_loads(ir_dereference *deref, new(mem_ctx) ir_dereference_array(deref->clone(mem_ctx, NULL), col); - /* std140 always rounds the stride of arrays (and matrices) - * to a vec4, so matrices are always 16 between columns/rows. - */ - emit_ubo_loads(col_deref, base_offset, deref_offset + i * 16); + if (ubo_var->RowMajor) { + /* For a row-major matrix, the next column starts at the next + * element. + */ + emit_ubo_loads(col_deref, base_offset, deref_offset + i * 4); + } else { + /* std140 always rounds the stride of arrays (and matrices) to a + * vec4, so matrices are always 16 between columns/rows. + */ + emit_ubo_loads(col_deref, base_offset, deref_offset + i * 16); + } } return; } |