From dfbbefa97fe6d4e6620300b61e3644c5e0c6cd54 Mon Sep 17 00:00:00 2001
From: Ben Vanik <ben.vanik@gmail.com>
Date: Thu, 23 Jan 2014 23:58:23 -0800
Subject: [PATCH] Asserting byte swapped vbs.

---
 src/xenia/gpu/d3d11/d3d11_graphics_driver.cc | 2 ++
 src/xenia/gpu/xenos/xenos.h                  | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/xenia/gpu/d3d11/d3d11_graphics_driver.cc b/src/xenia/gpu/d3d11/d3d11_graphics_driver.cc
index 623f637c7..e15e6746e 100644
--- a/src/xenia/gpu/d3d11/d3d11_graphics_driver.cc
+++ b/src/xenia/gpu/d3d11/d3d11_graphics_driver.cc
@@ -949,6 +949,8 @@ int D3D11GraphicsDriver::PrepareVertexBuffer(Shader::vtx_buffer_desc_t& desc) {
   XEASSERT(fetch->type == 0x3);
   XEASSERTNOTZERO(fetch->size);
 
+  XEASSERT(fetch->endian == 0x2);
+
   ID3D11Buffer* buffer = 0;
   D3D11_BUFFER_DESC buffer_desc;
   xe_zero_struct(&buffer_desc, sizeof(buffer_desc));
diff --git a/src/xenia/gpu/xenos/xenos.h b/src/xenia/gpu/xenos/xenos.h
index 87a3660e3..147fed4b5 100644
--- a/src/xenia/gpu/xenos/xenos.h
+++ b/src/xenia/gpu/xenos/xenos.h
@@ -127,7 +127,7 @@ XEPACKEDUNION(xe_gpu_vertex_fetch_t, {
   XEPACKEDSTRUCTANONYMOUS({
     uint32_t type               : 2;
     uint32_t address            : 30;
-    uint32_t unk0               : 2;
+    uint32_t endian             : 2;
     uint32_t size               : 24;
     uint32_t unk1               : 6;
   });