i965: Make brw_type_for_base_type return the element type for arrays.

Previously, brw_type_for_base_type returned UD for array variables,
similar to structures.  For structures, each field may have a different
type, so every field access must explicitly override the register's type
with that field's type.  We chose to return UD in this case since it was
the least common, so errors would be more obvious.

For arrays, it makes far more sense to return the type corresponding to
an element of the array.  This allows normal array access to work
without the hassle of explicitly overriding the register's type.

This should obsolete a bunch of type overrides throughout the code.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp
index 7679b6eb31a4ca031ae2f42c958f68229302fd3c..f25fab30a03017e9c4ffdd89e97e6204a5d91600 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_shader.cpp
+++ b/src/mesa/drivers/dri/i965/brw_shader.cpp
@@ -170,6 +170,7 @@ brw_type_for_base_type(const struct glsl_type *type)
    case GLSL_TYPE_UINT:
       return BRW_REGISTER_TYPE_UD;
    case GLSL_TYPE_ARRAY:
+      return brw_type_for_base_type(type->fields.array);
    case GLSL_TYPE_STRUCT:
    case GLSL_TYPE_SAMPLER:
       /* These should be overridden with the type of the member when