From 5a0299875c7a4a9a0cb2cf55777c92c1b17d528b Mon Sep 17 00:00:00 2001
From: michal <michal@quad.(none)>
Date: Wed, 5 Nov 2008 11:58:11 +0100
Subject: [PATCH] draw: Implement TGSI_OPCODE_TRUNC.

---
 src/gallium/auxiliary/draw/draw_vs_aos.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/gallium/auxiliary/draw/draw_vs_aos.c b/src/gallium/auxiliary/draw/draw_vs_aos.c
index 8723286..a688068 100644
--- a/src/gallium/auxiliary/draw/draw_vs_aos.c
+++ b/src/gallium/auxiliary/draw/draw_vs_aos.c
@@ -1632,6 +1632,17 @@ static boolean emit_SUB( struct aos_compilation *cp, const struct tgsi_full_inst
    return TRUE;
 }
 
+static boolean emit_TRUNC( struct aos_compilation *cp, const struct tgsi_full_instruction *op )
+{
+   struct x86_reg arg0 = fetch_src(cp, &op->FullSrcRegisters[0]);
+   struct x86_reg tmp0 = aos_get_xmm_reg(cp);
+
+   sse2_cvttps2dq(cp->func, tmp0, arg0);
+   sse2_cvtdq2ps(cp->func, tmp0, tmp0);
+
+   store_dest(cp, &op->FullDstRegisters[0], tmp0);
+   return TRUE;
+}
 
 static boolean emit_XPD( struct aos_compilation *cp, const struct tgsi_full_instruction *op ) 
 {
@@ -1770,6 +1781,9 @@ emit_instruction( struct aos_compilation *cp,
    case TGSI_OPCODE_SIN:
       return emit_SIN(cp, inst);
 
+   case TGSI_OPCODE_TRUNC:
+      return emit_TRUNC(cp, inst);
+
    case TGSI_OPCODE_END:
       return TRUE;
 
-- 
2.7.4