From a5b37dce1d07afcce523c7bf6438730164a9b5b1 Mon Sep 17 00:00:00 2001
From: "Dr. Chat" <arkolbed@gmail.com>
Date: Wed, 13 Jan 2016 01:50:20 -0600
Subject: [PATCH] Shaders: Emit an unimplemented warning for indexed vertex
 fetch instructions

---
 src/xenia/gpu/glsl_shader_translator.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/xenia/gpu/glsl_shader_translator.cc b/src/xenia/gpu/glsl_shader_translator.cc
index 397dd3a63..3a891316d 100644
--- a/src/xenia/gpu/glsl_shader_translator.cc
+++ b/src/xenia/gpu/glsl_shader_translator.cc
@@ -535,6 +535,14 @@ void GlslShaderTranslator::ProcessVertexFetchInstruction(
   EmitSource("// ");
   instr.Disassemble(&source_);
 
+  if (instr.operands[0].storage_index != 0) {
+    // Unimplemented for now.
+    EmitUnimplementedTranslationError();
+    EmitSourceDepth("pv.xyzw = vec4(0.0, 0.0, 0.0, 0.0);\n");
+    EmitStoreVectorResult(instr.result);
+    return;
+  }
+
   if (instr.is_predicated) {
     EmitSourceDepth("if (%cp0) {\n", instr.predicate_condition ? ' ' : '!');
     Indent();