From 272107e3884af257996c1bf53a1068a4c37ab558 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Sun, 6 Jul 2008 21:57:10 -0400
Subject: [PATCH] Attempt at DSX and DSY in nv2 profile.

I'm not sure if these map directly to the Direct3D opcodes, though...

--HG--
branch : trunk
---
 mojoshader.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/mojoshader.c b/mojoshader.c
index 7ec6f012..01c0616f 100644
--- a/mojoshader.c
+++ b/mojoshader.c
@@ -4827,8 +4827,23 @@ static void emit_ARB1_DP2ADD(Context *ctx)
 } // emit_ARB1_DP2ADD
 
 
-EMIT_ARB1_OPCODE_UNIMPLEMENTED_FUNC(DSX)
-EMIT_ARB1_OPCODE_UNIMPLEMENTED_FUNC(DSY)
+static void emit_ARB1_DSX(Context *ctx)
+{
+    if (ctx->support_nv2)  // nv2 has a built-in equivalent to DSX.
+        emit_ARB1_opcode_ds(ctx, "DDX");
+    else
+        failf(ctx, "DSX unsupported in %s profile", ctx->profile->name);
+} // emit_ARB1_DSX
+
+
+static void emit_ARB1_DSY(Context *ctx)
+{
+    if (ctx->support_nv2)  // nv2 has a built-in equivalent to DSY.
+        emit_ARB1_opcode_ds(ctx, "DDY");
+    else
+        failf(ctx, "DSY unsupported in %s profile", ctx->profile->name);
+} // emit_ARB1_DSY
+
 EMIT_ARB1_OPCODE_UNIMPLEMENTED_FUNC(TEXLDD)