From: Chia-I Wu <olv@lunarg.com>
Date: Sat, 4 Dec 2010 13:02:50 +0000 (+0800)
Subject: st/vega: Fix VG_BLEND_MULTIPLY.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5d244111404fc36c55266f9703f81b27a5200a47;p=mesa.git

st/vega: Fix VG_BLEND_MULTIPLY.

TEMP[1].w will be needed for OUT.w just below.  Use TEMP[0] to store the
intermediate value.
---

diff --git a/src/gallium/state_trackers/vega/asm_fill.h b/src/gallium/state_trackers/vega/asm_fill.h
index 566f7c95f5b..5ff76975e22 100644
--- a/src/gallium/state_trackers/vega/asm_fill.h
+++ b/src/gallium/state_trackers/vega/asm_fill.h
@@ -367,7 +367,7 @@ blend_generic(struct ureg_program *ureg,
             ureg_scalar(dst, TGSI_SWIZZLE_W), ureg_negate(src), src);
       ureg_MAD(ureg, temp[1],
             src_channel_alpha, ureg_negate(dst), dst);
-      ureg_MAD(ureg, temp[1], src, dst, ureg_src(temp[1]));
+      ureg_MAD(ureg, temp[0], src, dst, ureg_src(temp[0]));
       ureg_ADD(ureg, out, ureg_src(temp[0]), ureg_src(temp[1]));
       /* alpha is src over */
       ureg_ADD(ureg, ureg_writemask(out, TGSI_WRITEMASK_W),