Mesa (master): i965/fs: Correctly set up gl_FragCoord.w on Sandybridge.
Kenneth Graunke
kwg at kemper.freedesktop.org
Tue Feb 22 18:54:52 UTC 2011
Module: Mesa
Branch: master
Commit: 4a3b28113c3d23ba21bb8b8f5ebab7c567083a6d
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4a3b28113c3d23ba21bb8b8f5ebab7c567083a6d
Author: Kenneth Graunke <kenneth at whitecape.org>
Date: Sat Feb 19 16:48:24 2011 -0800
i965/fs: Correctly set up gl_FragCoord.w on Sandybridge.
pixel_w is the final result; wpos_w is used on gen4 to compute it.
NOTE: This is a candidate for the 7.10 branch.
Reviewed-by: Eric Anholt <eric at anholt.net>
---
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 c6c6497..30e3bd5 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -494,7 +494,7 @@ 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->wpos_w));
+ emit(fs_inst(BRW_OPCODE_MOV, wpos, this->pixel_w));
return reg;
}
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