From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Mon, 14 Sep 2015 21:18:13 +0000 (-0700)
Subject: i965/fs: Only read output_components many components when writing an output
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=51824000541d8df9f870cbe0823a3835c9403bff;p=mesa.git

i965/fs: Only read output_components many components when writing an output

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
---

diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index cea16e0b325..8b61c867602 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -974,8 +974,10 @@ fs_visitor::emit_urb_writes()
                sources[length++] = reg;
             }
          } else {
-            for (int i = 0; i < 4; i++)
+            for (int i = 0; i < output_components[varying]; i++)
                sources[length++] = offset(this->outputs[varying], bld, i);
+            for (int i = output_components[varying]; i < 4; i++)
+               sources[length++] = fs_reg(0);
          }
          break;
       }