Mesa (master): draw: corrections for w coordinate

[Keith Whitwell]

Module: Mesa
Branch: master
Commit: c1d6b318661de2acdee38254d3750ed8dfc09e8b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c1d6b318661de2acdee38254d3750ed8dfc09e8b

Author: Hui Qi Tay <tayhuiqithq at gmail.com>
Date:   Sat Oct 16 11:02:11 2010 +0100

draw: corrections for w coordinate

---

 src/gallium/auxiliary/draw/draw_llvm.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/gallium/auxiliary/draw/draw_llvm.c b/src/gallium/auxiliary/draw/draw_llvm.c
index 1c18d90..7afa37b 100644
--- a/src/gallium/auxiliary/draw/draw_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_llvm.c
@@ -800,9 +800,10 @@ generate_viewport(struct draw_llvm *llvm,
    
    /* for 1/w convention*/
    out3 = LLVMBuildFDiv(builder, const1, out3, "");
-
+   LLVMBuildStore(builder, out3, outputs[0][3]);
+  
    /* Viewport Mapping */
-   for (i=0; i<4; i++){
+   for (i=0; i<3; i++){
       LLVMValueRef out = LLVMBuildLoad(builder, outputs[0][i], ""); /*x0 x1 x2 x3*/
       LLVMValueRef scale = lp_build_const_vec(f32_type, scaleA[i]); /*sx sx sx sx*/     
       LLVMValueRef trans = lp_build_const_vec(f32_type, transA[i]); /*tx tx tx tx*/