From: Eric Anholt <eric@anholt.net>
Date: Thu, 10 May 2012 22:38:11 +0000 (-0700)
Subject: i965/vs: Fix up swizzle for dereference_array of matrices.
X-Git-Tag: 062012170305~250
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=aa02884c4fdcbc20cf7ac89ec50f9d6c8d1e1682;p=profile%2Fivi%2Fmesa.git

i965/vs: Fix up swizzle for dereference_array of matrices.

Fixes assertion failure in piglit:
vs-mat2-struct-assignment.shader_test
vs-mat2-array-assignment.shader_test

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
---

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index a7d71b3..c2b1033 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -1454,7 +1454,7 @@ vec4_visitor::visit(ir_dereference_array *ir)
    }
 
    /* If the type is smaller than a vec4, replicate the last channel out. */
-   if (ir->type->is_scalar() || ir->type->is_vector())
+   if (ir->type->is_scalar() || ir->type->is_vector() || ir->type->is_matrix())
       src.swizzle = swizzle_for_size(ir->type->vector_elements);
    else
       src.swizzle = BRW_SWIZZLE_NOOP;
@@ -1479,7 +1479,7 @@ vec4_visitor::visit(ir_dereference_record *ir)
    }
 
    /* If the type is smaller than a vec4, replicate the last channel out. */
-   if (ir->type->is_scalar() || ir->type->is_vector())
+   if (ir->type->is_scalar() || ir->type->is_vector() || ir->type->is_matrix())
       this->result.swizzle = swizzle_for_size(ir->type->vector_elements);
    else
       this->result.swizzle = BRW_SWIZZLE_NOOP;