Mesa (7.10): Revert "i965/fs: Correctly set up gl_FragCoord. w on Sandybridge."

[Kenneth Graunke]

Module: Mesa
Branch: 7.10
Commit: f9f01e40c7ca66b72ad6c8fe98eaedbc03ae59b8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f9f01e40c7ca66b72ad6c8fe98eaedbc03ae59b8

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Tue Mar  1 01:09:52 2011 -0800

Revert "i965/fs: Correctly set up gl_FragCoord.w on Sandybridge."

This reverts commit 2171197559061dc597717bd0f1cf361a11b08f21, as it
caused a regression on Ironlake (bug #34646).

---

 src/mesa/drivers/dri/i965/brw_fs.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index dcbdacf..5c40723 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -493,7 +493,7 @@ fs_visitor::emit_fragcoord_interpolation(ir_variable *ir)
    wpos.reg_offset++;
 
    /* gl_FragCoord.w: Already set up in emit_interpolation */
-   emit(fs_inst(BRW_OPCODE_MOV, wpos, this->pixel_w));
+   emit(fs_inst(BRW_OPCODE_MOV, wpos, this->wpos_w));
 
    return reg;
 }